3 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010,
4 2011 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "exceptions.h"
23 #include "arch-utils.h"
24 #include "dyn-string.h"
25 #include "readline/readline.h"
26 #include "readline/tilde.h"
27 #include "completer.h"
28 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
29 #include "gdb_wait.h" /* For shell escape implementation. */
30 #include "gdb_regex.h" /* Used by apropos_command. */
31 #include "gdb_string.h"
32 #include "gdb_vfork.h"
34 #include "expression.h"
38 #include "filenames.h" /* For DOSish file names. */
42 #include "tracepoint.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"
52 #include "python/python.h"
55 #include "tui/tui.h" /* For tui_active et.al. */
60 /* Prototypes for local command functions */
62 static void complete_command (char *, int);
64 static void echo_command (char *, int);
66 static void pwd_command (char *, int);
68 static void show_version (char *, int);
70 static void help_command (char *, int);
72 static void show_command (char *, int);
74 static void info_command (char *, int);
76 static void show_debug (char *, int);
78 static void set_debug (char *, int);
80 static void show_user (char *, int);
82 static void make_command (char *, int);
84 static void shell_escape (char *, int);
86 static void edit_command (char *, int);
88 static void list_command (char *, int);
90 void apropos_command (char *, int);
92 /* Prototypes for local utility functions */
94 static void ambiguous_line_spec (struct symtabs_and_lines
*);
96 /* Limit the call depth of user-defined commands */
97 int max_user_call_depth
;
99 /* Define all cmd_list_elements. */
101 /* Chain containing all defined commands. */
103 struct cmd_list_element
*cmdlist
;
105 /* Chain containing all defined info subcommands. */
107 struct cmd_list_element
*infolist
;
109 /* Chain containing all defined enable subcommands. */
111 struct cmd_list_element
*enablelist
;
113 /* Chain containing all defined disable subcommands. */
115 struct cmd_list_element
*disablelist
;
117 /* Chain containing all defined toggle subcommands. */
119 struct cmd_list_element
*togglelist
;
121 /* Chain containing all defined stop subcommands. */
123 struct cmd_list_element
*stoplist
;
125 /* Chain containing all defined delete subcommands. */
127 struct cmd_list_element
*deletelist
;
129 /* Chain containing all defined detach subcommands. */
131 struct cmd_list_element
*detachlist
;
133 /* Chain containing all defined kill subcommands. */
135 struct cmd_list_element
*killlist
;
137 /* Chain containing all defined "enable breakpoint" subcommands. */
139 struct cmd_list_element
*enablebreaklist
;
141 /* Chain containing all defined set subcommands */
143 struct cmd_list_element
*setlist
;
145 /* Chain containing all defined unset subcommands */
147 struct cmd_list_element
*unsetlist
;
149 /* Chain containing all defined show subcommands. */
151 struct cmd_list_element
*showlist
;
153 /* Chain containing all defined \"set history\". */
155 struct cmd_list_element
*sethistlist
;
157 /* Chain containing all defined \"show history\". */
159 struct cmd_list_element
*showhistlist
;
161 /* Chain containing all defined \"unset history\". */
163 struct cmd_list_element
*unsethistlist
;
165 /* Chain containing all defined maintenance subcommands. */
167 struct cmd_list_element
*maintenancelist
;
169 /* Chain containing all defined "maintenance info" subcommands. */
171 struct cmd_list_element
*maintenanceinfolist
;
173 /* Chain containing all defined "maintenance print" subcommands. */
175 struct cmd_list_element
*maintenanceprintlist
;
177 struct cmd_list_element
*setprintlist
;
179 struct cmd_list_element
*showprintlist
;
181 struct cmd_list_element
*setdebuglist
;
183 struct cmd_list_element
*showdebuglist
;
185 struct cmd_list_element
*setchecklist
;
187 struct cmd_list_element
*showchecklist
;
189 /* Command tracing state. */
191 int source_verbose
= 0;
192 int trace_commands
= 0;
194 /* 'script-extension' option support. */
196 static const char script_ext_off
[] = "off";
197 static const char script_ext_soft
[] = "soft";
198 static const char script_ext_strict
[] = "strict";
200 static const char *script_ext_enums
[] = {
207 static const char *script_ext_mode
= script_ext_soft
;
209 /* Utility used everywhere when at least one argument is needed and
213 error_no_arg (char *why
)
215 error (_("Argument required (%s)."), why
);
218 /* The "info" command is defined as a prefix, with allow_unknown = 0.
219 Therefore, its own definition is called only for "info" with no
223 info_command (char *arg
, int from_tty
)
225 printf_unfiltered (_("\"info\" must be followed by "
226 "the name of an info command.\n"));
227 help_list (infolist
, "info ", -1, gdb_stdout
);
230 /* The "show" command with no arguments shows all the settings. */
233 show_command (char *arg
, int from_tty
)
235 cmd_show_list (showlist
, from_tty
, "");
238 /* Provide documentation on command or list given by COMMAND. FROM_TTY
242 help_command (char *command
, int from_tty
)
244 help_cmd (command
, gdb_stdout
);
247 /* String compare function for qsort. */
249 compare_strings (const void *arg1
, const void *arg2
)
251 const char **s1
= (const char **) arg1
;
252 const char **s2
= (const char **) arg2
;
254 return strcmp (*s1
, *s2
);
257 /* The "complete" command is used by Emacs to implement completion. */
260 complete_command (char *arg
, int from_tty
)
263 char **completions
, *point
, *arg_prefix
;
269 argpoint
= strlen (arg
);
271 /* complete_line assumes that its first argument is somewhere
272 within, and except for filenames at the beginning of, the word to
273 be completed. The following crude imitation of readline's
274 word-breaking tries to accomodate this. */
275 point
= arg
+ argpoint
;
278 if (strchr (rl_completer_word_break_characters
, point
[-1]) != 0)
283 arg_prefix
= alloca (point
- arg
+ 1);
284 memcpy (arg_prefix
, arg
, point
- arg
);
285 arg_prefix
[point
- arg
] = 0;
287 completions
= complete_line (point
, arg
, argpoint
);
293 for (size
= 0; completions
[size
]; ++size
)
295 qsort (completions
, size
, sizeof (char *), compare_strings
);
297 /* We do extra processing here since we only want to print each
304 printf_unfiltered ("%s%s\n", arg_prefix
, completions
[item
]);
305 next_item
= item
+ 1;
306 while (next_item
< size
307 && ! strcmp (completions
[item
], completions
[next_item
]))
309 xfree (completions
[next_item
]);
313 xfree (completions
[item
]);
322 is_complete_command (struct cmd_list_element
*c
)
324 return cmd_cfunc_eq (c
, complete_command
);
328 show_version (char *args
, int from_tty
)
331 print_gdb_version (gdb_stdout
);
332 printf_filtered ("\n");
336 /* Handle the quit command. */
339 quit_command (char *args
, int from_tty
)
341 if (!quit_confirm ())
342 error (_("Not confirmed."));
344 disconnect_tracing (from_tty
);
346 quit_force (args
, from_tty
);
350 pwd_command (char *args
, int from_tty
)
353 error (_("The \"pwd\" command does not take an argument: %s"), args
);
354 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
355 error (_("Error finding name of working directory: %s"),
356 safe_strerror (errno
));
358 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
359 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
360 current_directory
, gdb_dirbuf
);
362 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
366 cd_command (char *dir
, int from_tty
)
369 /* Found something other than leading repetitions of "/..". */
373 /* If the new directory is absolute, repeat is a no-op; if relative,
374 repeat might be useful but is more likely to be a mistake. */
378 error_no_arg (_("new working directory"));
380 dir
= tilde_expand (dir
);
381 make_cleanup (xfree
, dir
);
384 perror_with_name (dir
);
386 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
387 /* There's too much mess with DOSish names like "d:", "d:.",
388 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
389 simply get the canonicalized name of the current directory. */
390 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
394 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
396 /* Remove the trailing slash unless this is a root directory
397 (including a drive letter on non-Unix systems). */
398 if (!(len
== 1) /* "/" */
399 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
400 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
406 dir
= savestring (dir
, len
);
407 if (IS_ABSOLUTE_PATH (dir
))
408 current_directory
= dir
;
411 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
412 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
414 current_directory
= concat (current_directory
, SLASH_STRING
,
419 /* Now simplify any occurrences of `.' and `..' in the pathname. */
422 for (p
= current_directory
; *p
;)
424 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
425 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
427 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
428 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
432 /* Search backwards for the directory just before the "/.."
433 and obliterate it and the "/..". */
436 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
439 if (q
== current_directory
)
440 /* current_directory is
441 a relative pathname ("can't happen"--leave it alone). */
445 strcpy (q
- 1, p
+ 3);
450 /* We are dealing with leading repetitions of "/..", for
451 example "/../..", which is the Mach super-root. */
461 forget_cached_source_info ();
464 pwd_command ((char *) 0, 1);
467 /* Show the current value of the 'script-extension' option. */
470 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
471 struct cmd_list_element
*c
, const char *value
)
473 fprintf_filtered (file
,
474 _("Script filename extension recognition is \"%s\".\n"),
478 /* Try to open SCRIPT_FILE.
479 If successful, the full path name is stored in *FULL_PATHP,
480 the stream is stored in *STREAMP, and return 1.
481 The caller is responsible for freeing *FULL_PATHP.
482 If not successful, return 0; errno is set for the last file
485 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
486 search for it in the source search path.
488 NOTE: This calls openp which uses xfullpath to compute the full path
489 instead of gdb_realpath. Symbolic links are not resolved. */
492 find_and_open_script (const char *script_file
, int search_path
,
493 FILE **streamp
, char **full_pathp
)
497 struct cleanup
*old_cleanups
;
498 int search_flags
= OPF_TRY_CWD_FIRST
;
500 file
= tilde_expand (script_file
);
501 old_cleanups
= make_cleanup (xfree
, file
);
504 search_flags
|= OPF_SEARCH_IN_PATH
;
506 /* Search for and open 'file' on the search path used for source
507 files. Put the full location in *FULL_PATHP. */
508 fd
= openp (source_path
, search_flags
,
509 file
, O_RDONLY
, full_pathp
);
513 int save_errno
= errno
;
514 do_cleanups (old_cleanups
);
519 do_cleanups (old_cleanups
);
521 *streamp
= fdopen (fd
, FOPEN_RT
);
525 /* Load script FILE, which has already been opened as STREAM.
526 STREAM is closed before we return. */
529 source_script_from_stream (FILE *stream
, const char *file
)
531 if (script_ext_mode
!= script_ext_off
532 && strlen (file
) > 3 && !strcmp (&file
[strlen (file
) - 3], ".py"))
534 volatile struct gdb_exception e
;
536 TRY_CATCH (e
, RETURN_MASK_ERROR
)
538 /* The python support reopens the file using python functions,
539 so there's no point in passing STREAM here. */
540 source_python_script (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. */
562 script_from_file (stream
, file
);
565 /* Worker to perform the "source" command.
567 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
568 search for it in the source search path. */
571 source_script_with_search (const char *file
, int from_tty
, int search_path
)
575 struct cleanup
*old_cleanups
;
577 if (file
== NULL
|| *file
== 0)
578 error (_("source command requires file name of file to source."));
580 if (!find_and_open_script (file
, search_path
, &stream
, &full_path
))
582 /* The script wasn't found, or was otherwise inaccessible.
583 If the source command was invoked interactively, throw an
584 error. Otherwise (e.g. if it was invoked by a script),
585 silently ignore the error. */
587 perror_with_name (file
);
592 old_cleanups
= make_cleanup (xfree
, full_path
);
593 /* The python support reopens the file, so we need to pass full_path here
594 in case the file was found on the search path. It's useful to do this
595 anyway so that error messages show the actual file used. But only do
596 this if we (may have) used search_path, as printing the full path in
597 errors for the non-search case can be more noise than signal. */
598 source_script_from_stream (stream
, search_path
? full_path
: file
);
599 do_cleanups (old_cleanups
);
602 /* Wrapper around source_script_with_search to export it to main.c
603 for use in loading .gdbinit scripts. */
606 source_script (char *file
, int from_tty
)
608 source_script_with_search (file
, from_tty
, 0);
611 /* Return the source_verbose global variable to its previous state
612 on exit from the source command, by whatever means. */
614 source_verbose_cleanup (void *old_value
)
616 source_verbose
= *(int *)old_value
;
621 source_command (char *args
, int from_tty
)
623 struct cleanup
*old_cleanups
;
625 int *old_source_verbose
= xmalloc (sizeof(int));
628 *old_source_verbose
= source_verbose
;
629 old_cleanups
= make_cleanup (source_verbose_cleanup
,
632 /* -v causes the source command to run in verbose mode.
633 -s causes the file to be searched in the source search path,
634 even if the file name contains a '/'.
635 We still have to be able to handle filenames with spaces in a
636 backward compatible way, so buildargv is not appropriate. */
640 while (args
[0] != '\0')
642 /* Make sure leading white space does not break the
644 while (isspace(args
[0]))
650 if (args
[1] == 'v' && isspace (args
[2]))
654 /* Skip passed -v. */
657 else if (args
[1] == 's' && isspace (args
[2]))
661 /* Skip passed -s. */
668 while (isspace (args
[0]))
673 source_script_with_search (file
, from_tty
, search_path
);
675 do_cleanups (old_cleanups
);
680 echo_command (char *text
, int from_tty
)
686 while ((c
= *p
++) != '\0')
690 /* \ at end of argument is used after spaces
691 so they won't be lost. */
695 c
= parse_escape (get_current_arch (), &p
);
697 printf_filtered ("%c", c
);
700 printf_filtered ("%c", c
);
703 /* Force this output to appear now. */
705 gdb_flush (gdb_stdout
);
709 shell_escape (char *arg
, int from_tty
)
711 #if defined(CANT_FORK) || \
712 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
713 /* If ARG is NULL, they want an inferior shell, but `system' just
714 reports if the shell is available when passed a NULL arg. */
715 int rc
= system (arg
? arg
: "");
718 arg
= "inferior shell";
722 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
723 safe_strerror (errno
));
724 gdb_flush (gdb_stderr
);
728 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
729 gdb_flush (gdb_stderr
);
732 /* Make sure to return to the directory GDB thinks it is, in case
733 the shell command we just ran changed it. */
734 chdir (current_directory
);
736 #else /* Can fork. */
739 if ((pid
= vfork ()) == 0)
741 const char *p
, *user_shell
;
743 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
744 user_shell
= "/bin/sh";
746 /* Get the name of the shell for arg0. */
747 p
= lbasename (user_shell
);
750 execl (user_shell
, p
, (char *) 0);
752 execl (user_shell
, p
, "-c", arg
, (char *) 0);
754 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
755 safe_strerror (errno
));
756 gdb_flush (gdb_stderr
);
761 waitpid (pid
, &status
, 0);
763 error (_("Fork failed"));
764 #endif /* Can fork. */
768 edit_command (char *arg
, int from_tty
)
770 struct symtabs_and_lines sals
;
771 struct symtab_and_line sal
;
777 /* Pull in the current default source line if necessary. */
780 set_default_source_symtab_and_line ();
781 sal
= get_current_source_symtab_and_line ();
784 /* Bare "edit" edits file with present line. */
789 error (_("No default source file yet."));
790 sal
.line
+= get_lines_to_list () / 2;
794 /* Now should only be one argument -- decode it in SAL. */
797 sals
= decode_line_1 (&arg1
, 0, 0, 0, 0);
806 ambiguous_line_spec (&sals
);
815 error (_("Junk at end of line specification."));
817 /* If line was specified by address, first print exactly which
818 line, and which file. In this case, sal.symtab == 0 means
819 address is outside of all known source files, not that user
820 failed to give a filename. */
823 struct gdbarch
*gdbarch
;
826 /* FIXME-32x64--assumes sal.pc fits in long. */
827 error (_("No source file for address %s."),
828 hex_string ((unsigned long) sal
.pc
));
830 gdbarch
= get_objfile_arch (sal
.symtab
->objfile
);
831 sym
= find_pc_function (sal
.pc
);
833 printf_filtered ("%s is in %s (%s:%d).\n",
834 paddress (gdbarch
, sal
.pc
),
835 SYMBOL_PRINT_NAME (sym
),
836 sal
.symtab
->filename
, sal
.line
);
838 printf_filtered ("%s is at %s:%d.\n",
839 paddress (gdbarch
, sal
.pc
),
840 sal
.symtab
->filename
, sal
.line
);
843 /* If what was given does not imply a symtab, it must be an
844 undebuggable symbol which means no source code. */
847 error (_("No line number known for %s."), arg
);
850 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
853 /* If we don't already know the full absolute file name of the
854 source file, find it now. */
855 if (!sal
.symtab
->fullname
)
857 fn
= symtab_to_fullname (sal
.symtab
);
862 fn
= sal
.symtab
->fullname
;
864 /* Quote the file name, in case it has whitespace or other special
866 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
867 shell_escape (p
, from_tty
);
872 list_command (char *arg
, int from_tty
)
874 struct symtabs_and_lines sals
, sals_end
;
875 struct symtab_and_line sal
= { 0 };
876 struct symtab_and_line sal_end
= { 0 };
877 struct symtab_and_line cursal
= { 0 };
886 /* Pull in the current default source line if necessary. */
887 if (arg
== 0 || arg
[0] == '+' || arg
[0] == '-')
889 set_default_source_symtab_and_line ();
890 cursal
= get_current_source_symtab_and_line ();
893 /* "l" or "l +" lists next ten lines. */
895 if (arg
== 0 || strcmp (arg
, "+") == 0)
897 print_source_lines (cursal
.symtab
, cursal
.line
,
898 cursal
.line
+ get_lines_to_list (), 0);
902 /* "l -" lists previous ten lines, the ones before the ten just
904 if (strcmp (arg
, "-") == 0)
906 print_source_lines (cursal
.symtab
,
907 max (get_first_line_listed ()
908 - get_lines_to_list (), 1),
909 get_first_line_listed (), 0);
913 /* Now if there is only one argument, decode it in SAL
915 If there are two arguments, decode them in SAL and SAL_END
916 and clear NO_END; however, if one of the arguments is blank,
917 set DUMMY_BEG or DUMMY_END to record that fact. */
919 if (!have_full_symbols () && !have_partial_symbols ())
920 error (_("No symbol table is loaded. Use the \"file\" command."));
927 sals
= decode_line_1 (&arg1
, 0, 0, 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
, 0, 0, 0, 0);
962 sals_end
= decode_line_1 (&arg1
, 0, sal
.symtab
, sal
.line
, 0);
963 if (sals_end
.nelts
== 0)
965 if (sals_end
.nelts
> 1)
967 ambiguous_line_spec (&sals_end
);
968 xfree (sals_end
.sals
);
971 sal_end
= sals_end
.sals
[0];
972 xfree (sals_end
.sals
);
977 error (_("Junk at end of line specification."));
979 if (!no_end
&& !dummy_beg
&& !dummy_end
980 && sal
.symtab
!= sal_end
.symtab
)
981 error (_("Specified start and end are in different files."));
982 if (dummy_beg
&& dummy_end
)
983 error (_("Two empty args do not say what lines to list."));
985 /* If line was specified by address,
986 first print exactly which line, and which file.
988 In this case, sal.symtab == 0 means address is outside of all
989 known source files, not that user failed to give a filename. */
992 struct gdbarch
*gdbarch
;
995 /* FIXME-32x64--assumes sal.pc fits in long. */
996 error (_("No source file for address %s."),
997 hex_string ((unsigned long) sal
.pc
));
999 gdbarch
= get_objfile_arch (sal
.symtab
->objfile
);
1000 sym
= find_pc_function (sal
.pc
);
1002 printf_filtered ("%s is in %s (%s:%d).\n",
1003 paddress (gdbarch
, sal
.pc
),
1004 SYMBOL_PRINT_NAME (sym
),
1005 sal
.symtab
->filename
, sal
.line
);
1007 printf_filtered ("%s is at %s:%d.\n",
1008 paddress (gdbarch
, sal
.pc
),
1009 sal
.symtab
->filename
, sal
.line
);
1012 /* If line was not specified by just a line number, and it does not
1013 imply a symtab, it must be an undebuggable symbol which means no
1016 if (!linenum_beg
&& sal
.symtab
== 0)
1017 error (_("No line number known for %s."), arg
);
1019 /* If this command is repeated with RET,
1020 turn it into the no-arg variant. */
1025 if (dummy_beg
&& sal_end
.symtab
== 0)
1026 error (_("No default source file yet. Do \"help list\"."));
1028 print_source_lines (sal_end
.symtab
,
1029 max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1030 sal_end
.line
+ 1, 0);
1031 else if (sal
.symtab
== 0)
1032 error (_("No default source file yet. Do \"help list\"."));
1035 int first_line
= sal
.line
- get_lines_to_list () / 2;
1037 if (first_line
< 1) first_line
= 1;
1039 print_source_lines (sal
.symtab
,
1041 first_line
+ get_lines_to_list (),
1045 print_source_lines (sal
.symtab
, sal
.line
,
1047 ? sal
.line
+ get_lines_to_list ()
1048 : sal_end
.line
+ 1),
1052 /* Subroutine of disassemble_command to simplify it.
1053 Perform the disassembly.
1054 NAME is the name of the function if known, or NULL.
1055 [LOW,HIGH) are the range of addresses to disassemble.
1056 MIXED is non-zero to print source with the assembler. */
1059 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1060 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1063 if (!tui_is_window_visible (DISASSEM_WIN
))
1066 printf_filtered ("Dump of assembler code ");
1068 printf_filtered ("for function %s:\n", name
);
1070 printf_filtered ("from %s to %s:\n",
1071 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1073 /* Dump the specified range. */
1074 gdb_disassembly (gdbarch
, current_uiout
, 0, flags
, -1, low
, high
);
1076 printf_filtered ("End of assembler dump.\n");
1077 gdb_flush (gdb_stdout
);
1082 tui_show_assembly (gdbarch
, low
);
1087 /* Subroutine of disassemble_command to simplify it.
1088 Print a disassembly of the current function according to FLAGS. */
1091 disassemble_current_function (int flags
)
1093 struct frame_info
*frame
;
1094 struct gdbarch
*gdbarch
;
1095 CORE_ADDR low
, high
, pc
;
1098 frame
= get_selected_frame (_("No frame selected."));
1099 gdbarch
= get_frame_arch (frame
);
1100 pc
= get_frame_pc (frame
);
1101 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1102 error (_("No function contains program counter for selected frame."));
1104 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1107 /* FIXME: cagney/2004-02-07: This should be an observer. */
1108 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1110 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1112 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1115 /* Dump a specified section of assembly code.
1119 - dump the assembly code for the function of the current pc
1120 disassemble [/mr] addr
1121 - dump the assembly code for the function at ADDR
1122 disassemble [/mr] low,high
1123 disassemble [/mr] low,+length
1124 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1126 A /m modifier will include source code with the assembly.
1127 A /r modifier will include raw instructions in hex with the assembly. */
1130 disassemble_command (char *arg
, int from_tty
)
1132 struct gdbarch
*gdbarch
= get_current_arch ();
1133 CORE_ADDR low
, high
;
1141 if (arg
&& *arg
== '/')
1146 error (_("Missing modifier."));
1148 while (*arg
&& ! isspace (*arg
))
1153 flags
|= DISASSEMBLY_SOURCE
;
1156 flags
|= DISASSEMBLY_RAW_INSN
;
1159 error (_("Invalid disassembly modifier."));
1163 while (isspace (*arg
))
1167 if (! arg
|| ! *arg
)
1169 flags
|= DISASSEMBLY_OMIT_FNAME
;
1170 disassemble_current_function (flags
);
1174 pc
= value_as_address (parse_to_comma_and_eval (&arg
));
1180 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1181 error (_("No function contains specified address."));
1183 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1186 /* FIXME: cagney/2004-02-07: This should be an observer. */
1187 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1189 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1190 flags
|= DISASSEMBLY_OMIT_FNAME
;
1194 /* Two arguments. */
1197 while (isspace (*arg
))
1204 high
= parse_and_eval_address (arg
);
1209 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1213 make_command (char *arg
, int from_tty
)
1221 p
= xmalloc (sizeof ("make ") + strlen (arg
));
1222 strcpy (p
, "make ");
1223 strcpy (p
+ sizeof ("make ") - 1, arg
);
1226 shell_escape (p
, from_tty
);
1230 show_user (char *args
, int from_tty
)
1232 struct cmd_list_element
*c
;
1233 extern struct cmd_list_element
*cmdlist
;
1237 char *comname
= args
;
1239 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1240 if (c
->class != class_user
)
1241 error (_("Not a user command."));
1242 show_user_1 (c
, "", args
, gdb_stdout
);
1246 for (c
= cmdlist
; c
; c
= c
->next
)
1248 if (c
->class == class_user
|| c
->prefixlist
!= NULL
)
1249 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1254 /* Search through names of commands and documentations for a certain
1255 regular expression. */
1258 apropos_command (char *searchstr
, int from_tty
)
1263 if (searchstr
== NULL
)
1264 error (_("REGEXP string is empty"));
1266 code
= regcomp (&pattern
, searchstr
, REG_ICASE
);
1269 struct cleanup
*cleanups
;
1271 cleanups
= make_regfree_cleanup (&pattern
);
1272 apropos_cmd (gdb_stdout
, cmdlist
, &pattern
, "");
1273 do_cleanups (cleanups
);
1277 char *err
= get_regcomp_error (code
, &pattern
);
1279 make_cleanup (xfree
, err
);
1280 error (_("Error in regular expression: %s"), err
);
1284 /* Subroutine of alias_command to simplify it.
1285 Return the first N elements of ARGV flattened back to a string
1286 with a space separating each element.
1287 ARGV may not be NULL.
1288 This does not take care of quoting elements in case they contain spaces
1292 argv_to_dyn_string (char **argv
, int n
)
1295 dyn_string_t result
= dyn_string_new (10);
1297 gdb_assert (argv
!= NULL
);
1298 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1300 for (i
= 0; i
< n
; ++i
)
1303 dyn_string_append_char (result
, ' ');
1304 dyn_string_append_cstr (result
, argv
[i
]);
1310 /* Subroutine of alias_command to simplify it.
1311 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1314 valid_command_p (char *command
)
1316 struct cmd_list_element
*c
;
1318 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1320 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1323 /* This is the slightly tricky part.
1324 lookup_cmd_1 will return a pointer to the last part of COMMAND
1325 to match, leaving COMMAND pointing at the remainder. */
1326 while (*command
== ' ' || *command
== '\t')
1328 return *command
== '\0';
1331 /* Make an alias of an existing command. */
1334 alias_command (char *args
, int from_tty
)
1336 int i
, alias_argc
, command_argc
;
1337 int abbrev_flag
= 0;
1338 char *args2
, *equals
, *alias
, *command
;
1339 char **alias_argv
, **command_argv
;
1340 dyn_string_t alias_dyn_string
, command_dyn_string
;
1341 struct cmd_list_element
*c
;
1342 static const char usage
[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND");
1344 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1347 args2
= xstrdup (args
);
1348 make_cleanup (xfree
, args2
);
1349 equals
= strchr (args2
, '=');
1351 alias_argv
= gdb_buildargv (args2
);
1352 make_cleanup_freeargv (alias_argv
);
1353 command_argv
= gdb_buildargv (equals
+ 1);
1354 make_cleanup_freeargv (command_argv
);
1356 for (i
= 0; alias_argv
[i
] != NULL
; )
1358 if (strcmp (alias_argv
[i
], "-a") == 0)
1363 else if (strcmp (alias_argv
[i
], "--") == 0)
1372 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1373 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1376 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1378 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1381 error (_("Invalid command name: %s"), alias_argv
[i
]);
1383 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1387 alias_argc
= countargv (alias_argv
);
1388 command_argc
= countargv (command_argv
);
1390 /* COMMAND must exist.
1391 Reconstruct the command to remove any extraneous spaces,
1392 for better error messages. */
1393 command_dyn_string
= argv_to_dyn_string (command_argv
, command_argc
);
1394 make_cleanup_dyn_string_delete (command_dyn_string
);
1395 command
= dyn_string_buf (command_dyn_string
);
1396 if (! valid_command_p (command
))
1397 error (_("Invalid command to alias to: %s"), command
);
1399 /* ALIAS must not exist. */
1400 alias_dyn_string
= argv_to_dyn_string (alias_argv
, alias_argc
);
1401 make_cleanup_dyn_string_delete (alias_dyn_string
);
1402 alias
= dyn_string_buf (alias_dyn_string
);
1403 if (valid_command_p (alias
))
1404 error (_("Alias already exists: %s"), alias
);
1406 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1407 Example: alias spe = set print elements
1409 Otherwise ALIAS and COMMAND must have the same number of words,
1410 and every word except the last must match; and the last word of
1411 ALIAS is made an alias of the last word of COMMAND.
1412 Example: alias set print elms = set pr elem
1413 Note that unambiguous abbreviations are allowed. */
1415 if (alias_argc
== 1)
1417 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1418 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1424 dyn_string_t alias_prefix_dyn_string
, command_prefix_dyn_string
;
1425 char *alias_prefix
, *command_prefix
;
1426 struct cmd_list_element
*c_alias
, *c_command
;
1428 if (alias_argc
!= command_argc
)
1429 error (_("Mismatched command length between ALIAS and COMMAND."));
1431 /* Create copies of ALIAS and COMMAND without the last word,
1432 and use that to verify the leading elements match. */
1433 alias_prefix_dyn_string
=
1434 argv_to_dyn_string (alias_argv
, alias_argc
- 1);
1435 make_cleanup_dyn_string_delete (alias_prefix_dyn_string
);
1436 command_prefix_dyn_string
=
1437 argv_to_dyn_string (alias_argv
, command_argc
- 1);
1438 make_cleanup_dyn_string_delete (command_prefix_dyn_string
);
1439 alias_prefix
= dyn_string_buf (alias_prefix_dyn_string
);
1440 command_prefix
= dyn_string_buf (command_prefix_dyn_string
);
1442 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1443 /* We've already tried to look up COMMAND. */
1444 gdb_assert (c_command
!= NULL
1445 && c_command
!= (struct cmd_list_element
*) -1);
1446 gdb_assert (c_command
->prefixlist
!= NULL
);
1447 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1448 if (c_alias
!= c_command
)
1449 error (_("ALIAS and COMMAND prefixes do not match."));
1451 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1452 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1453 command_argv
[command_argc
- 1],
1454 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1458 /* Print a list of files and line numbers which a user may choose from
1459 in order to list a function which was specified ambiguously (as
1460 with `list classname::overloadedfuncname', for example). The
1461 vector in SALS provides the filenames and line numbers. */
1464 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1468 for (i
= 0; i
< sals
->nelts
; ++i
)
1469 printf_filtered (_("file: \"%s\", line number: %d\n"),
1470 sals
->sals
[i
].symtab
->filename
, sals
->sals
[i
].line
);
1474 set_debug (char *arg
, int from_tty
)
1476 printf_unfiltered (_("\"set debug\" must be followed by "
1477 "the name of a debug subcommand.\n"));
1478 help_list (setdebuglist
, "set debug ", -1, gdb_stdout
);
1482 show_debug (char *args
, int from_tty
)
1484 cmd_show_list (showdebuglist
, from_tty
, "");
1488 init_cmd_lists (void)
1490 max_user_call_depth
= 1024;
1500 enablebreaklist
= NULL
;
1505 showhistlist
= NULL
;
1506 unsethistlist
= NULL
;
1507 maintenancelist
= NULL
;
1508 maintenanceinfolist
= NULL
;
1509 maintenanceprintlist
= NULL
;
1510 setprintlist
= NULL
;
1511 showprintlist
= NULL
;
1512 setchecklist
= NULL
;
1513 showchecklist
= NULL
;
1517 show_info_verbose (struct ui_file
*file
, int from_tty
,
1518 struct cmd_list_element
*c
,
1522 fprintf_filtered (file
,
1523 _("Verbose printing of informational messages is %s.\n"),
1526 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1530 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1531 struct cmd_list_element
*c
, const char *value
)
1533 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1538 show_baud_rate (struct ui_file
*file
, int from_tty
,
1539 struct cmd_list_element
*c
, const char *value
)
1541 fprintf_filtered (file
, _("Baud rate for remote serial I/O is %s.\n"),
1546 show_remote_debug (struct ui_file
*file
, int from_tty
,
1547 struct cmd_list_element
*c
, const char *value
)
1549 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1554 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1555 struct cmd_list_element
*c
, const char *value
)
1557 fprintf_filtered (file
,
1558 _("Timeout limit to wait for target to respond is %s.\n"),
1563 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1564 struct cmd_list_element
*c
, const char *value
)
1566 fprintf_filtered (file
,
1567 _("The max call depth for user-defined commands is %s.\n"),
1573 init_cli_cmds (void)
1575 struct cmd_list_element
*c
;
1576 char *source_help_text
;
1578 /* Define the classes of commands.
1579 They will appear in the help list in the reverse of this order. */
1581 add_cmd ("internals", class_maintenance
, NULL
, _("\
1582 Maintenance commands.\n\
1583 Some gdb commands are provided just for use by gdb maintainers.\n\
1584 These commands are subject to frequent change, and may not be as\n\
1585 well documented as user commands."),
1587 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1588 add_cmd ("aliases", class_alias
, NULL
,
1589 _("Aliases of other commands."), &cmdlist
);
1590 add_cmd ("user-defined", class_user
, NULL
, _("\
1591 User-defined commands.\n\
1592 The commands in this class are those defined by the user.\n\
1593 Use the \"define\" command to define a command."), &cmdlist
);
1594 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1596 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1597 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1599 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1600 _("Making program stop at certain points."), &cmdlist
);
1601 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1602 add_cmd ("stack", class_stack
, NULL
, _("\
1603 Examining the stack.\n\
1604 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1605 counting from zero for the innermost (currently executing) frame.\n\n\
1606 At any time gdb identifies one frame as the \"selected\" frame.\n\
1607 Variable lookups are done with respect to the selected frame.\n\
1608 When the program being debugged stops, gdb selects the innermost frame.\n\
1609 The commands below can be used to select other frames by number or address."),
1611 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1613 /* Define general commands. */
1615 add_com ("pwd", class_files
, pwd_command
, _("\
1616 Print working directory. This is used for your program as well."));
1618 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1619 Set working directory to DIR for debugger and program being debugged.\n\
1620 The change does not take effect for the program being debugged\n\
1621 until the next time it is started."), &cmdlist
);
1622 set_cmd_completer (c
, filename_completer
);
1624 add_com ("echo", class_support
, echo_command
, _("\
1625 Print a constant string. Give string as argument.\n\
1626 C escape sequences may be used in the argument.\n\
1627 No newline is added at the end of the argument;\n\
1628 use \"\\n\" if you want a newline to be printed.\n\
1629 Since leading and trailing whitespace are ignored in command arguments,\n\
1630 if you want to print some you must use \"\\\" before leading whitespace\n\
1631 to be printed or after trailing whitespace."));
1632 add_com ("document", class_support
, document_command
, _("\
1633 Document a user-defined command.\n\
1634 Give command name as argument. Give documentation on following lines.\n\
1635 End with a line of just \"end\"."));
1636 add_com ("define", class_support
, define_command
, _("\
1637 Define a new command name. Command name is argument.\n\
1638 Definition appears on following lines, one command per line.\n\
1639 End with a line of just \"end\".\n\
1640 Use the \"document\" command to give documentation for the new command.\n\
1641 Commands defined in this way may have up to ten arguments."));
1643 source_help_text
= xstrprintf (_("\
1644 Read commands from a file named FILE.\n\
1646 Usage: source [-s] [-v] FILE\n\
1647 -s: search for the script in the source search path,\n\
1648 even if FILE contains directories.\n\
1649 -v: each command in FILE is echoed as it is executed.\n\
1651 Note that the file \"%s\" is read automatically in this way\n\
1652 when GDB is started."), gdbinit
);
1653 c
= add_cmd ("source", class_support
, source_command
,
1654 source_help_text
, &cmdlist
);
1655 set_cmd_completer (c
, filename_completer
);
1657 add_setshow_enum_cmd ("script-extension", class_support
,
1658 script_ext_enums
, &script_ext_mode
, _("\
1659 Set mode for script filename extension recognition."), _("\
1660 Show mode for script filename extension recognition."), _("\
1661 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1662 soft == evaluate script according to filename extension, fallback to GDB script"
1664 strict == evaluate script according to filename extension, error if not supported"
1667 show_script_ext_mode
,
1668 &setlist
, &showlist
);
1670 add_com ("quit", class_support
, quit_command
, _("Exit gdb."));
1671 c
= add_com ("help", class_support
, help_command
,
1672 _("Print list of commands."));
1673 set_cmd_completer (c
, command_completer
);
1674 add_com_alias ("q", "quit", class_support
, 1);
1675 add_com_alias ("h", "help", class_support
, 1);
1677 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1678 Set verbosity."), _("\
1679 Show verbosity."), NULL
,
1682 &setlist
, &showlist
);
1684 add_prefix_cmd ("history", class_support
, set_history
,
1685 _("Generic command for setting command history parameters."),
1686 &sethistlist
, "set history ", 0, &setlist
);
1687 add_prefix_cmd ("history", class_support
, show_history
,
1688 _("Generic command for showing command history parameters."),
1689 &showhistlist
, "show history ", 0, &showlist
);
1691 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1692 Set history expansion on command input."), _("\
1693 Show history expansion on command input."), _("\
1694 Without an argument, history expansion is enabled."),
1696 show_history_expansion_p
,
1697 &sethistlist
, &showhistlist
);
1699 add_prefix_cmd ("info", class_info
, info_command
, _("\
1700 Generic command for showing things about the program being debugged."),
1701 &infolist
, "info ", 0, &cmdlist
);
1702 add_com_alias ("i", "info", class_info
, 1);
1703 add_com_alias ("inf", "info", class_info
, 1);
1705 add_com ("complete", class_obscure
, complete_command
,
1706 _("List the completions for the rest of the line as a command."));
1708 add_prefix_cmd ("show", class_info
, show_command
, _("\
1709 Generic command for showing things about the debugger."),
1710 &showlist
, "show ", 0, &cmdlist
);
1711 /* Another way to get at the same thing. */
1712 add_info ("set", show_command
, _("Show all GDB settings."));
1714 add_cmd ("commands", no_set_class
, show_commands
, _("\
1715 Show the history of commands you typed.\n\
1716 You can supply a command number to start with, or a `+' to start after\n\
1717 the previous command number shown."),
1720 add_cmd ("version", no_set_class
, show_version
,
1721 _("Show what version of GDB this is."), &showlist
);
1723 add_com ("while", class_support
, while_command
, _("\
1724 Execute nested commands WHILE the conditional expression is non zero.\n\
1725 The conditional expression must follow the word `while' and must in turn be\n\
1726 followed by a new line. The nested commands must be entered one per line,\n\
1727 and should be terminated by the word `end'."));
1729 add_com ("if", class_support
, if_command
, _("\
1730 Execute nested commands once IF the conditional expression is non zero.\n\
1731 The conditional expression must follow the word `if' and must in turn be\n\
1732 followed by a new line. The nested commands must be entered one per line,\n\
1733 and should be terminated by the word 'else' or `end'. If an else clause\n\
1734 is used, the same rules apply to its nested commands as to the first ones."));
1736 /* If target is open when baud changes, it doesn't take effect until
1737 the next open (I think, not sure). */
1738 add_setshow_zinteger_cmd ("remotebaud", no_class
, &baud_rate
, _("\
1739 Set baud rate for remote serial I/O."), _("\
1740 Show baud rate for remote serial I/O."), _("\
1741 This value is used to set the speed of the serial port when debugging\n\
1742 using remote targets."),
1745 &setlist
, &showlist
);
1747 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1748 Set debugging of remote protocol."), _("\
1749 Show debugging of remote protocol."), _("\
1750 When enabled, each packet sent or received with the remote target\n\
1754 &setdebuglist
, &showdebuglist
);
1756 add_setshow_integer_cmd ("remotetimeout", no_class
, &remote_timeout
, _("\
1757 Set timeout limit to wait for target to respond."), _("\
1758 Show timeout limit to wait for target to respond."), _("\
1759 This value is used to set the time limit for gdb to wait for a response\n\
1762 show_remote_timeout
,
1763 &setlist
, &showlist
);
1765 add_prefix_cmd ("debug", no_class
, set_debug
,
1766 _("Generic command for setting gdb debugging flags"),
1767 &setdebuglist
, "set debug ", 0, &setlist
);
1769 add_prefix_cmd ("debug", no_class
, show_debug
,
1770 _("Generic command for showing gdb debugging flags"),
1771 &showdebuglist
, "show debug ", 0, &showlist
);
1773 c
= add_com ("shell", class_support
, shell_escape
, _("\
1774 Execute the rest of the line as a shell command.\n\
1775 With no arguments, run an inferior shell."));
1776 set_cmd_completer (c
, filename_completer
);
1778 c
= add_com ("edit", class_files
, edit_command
, _("\
1779 Edit specified file or function.\n\
1780 With no argument, edits file containing most recent line listed.\n\
1781 Editing targets can be specified in these ways:\n\
1782 FILE:LINENUM, to edit at that line in that file,\n\
1783 FUNCTION, to edit at the beginning of that function,\n\
1784 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1785 *ADDRESS, to edit at the line containing that address.\n\
1786 Uses EDITOR environment variable contents as editor (or ex as default)."));
1788 c
->completer
= location_completer
;
1790 add_com ("list", class_files
, list_command
, _("\
1791 List specified function or line.\n\
1792 With no argument, lists ten more lines after or around previous listing.\n\
1793 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1794 One argument specifies a line, and ten lines are listed around that line.\n\
1795 Two arguments with comma between specify starting and ending lines to list.\n\
1796 Lines can be specified in these ways:\n\
1797 LINENUM, to list around that line in current file,\n\
1798 FILE:LINENUM, to list around that line in that file,\n\
1799 FUNCTION, to list around beginning of that function,\n\
1800 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1801 *ADDRESS, to list around the line containing that address.\n\
1802 With two args if one is empty it stands for ten lines away from \
1806 add_com_alias ("l", "list", class_files
, 1);
1808 add_com_alias ("v", "list", class_files
, 1);
1811 add_com_alias ("file", "list", class_files
, 1);
1813 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1814 Disassemble a specified section of memory.\n\
1815 Default is the function surrounding the pc of the selected frame.\n\
1816 With a /m modifier, source lines are included (if available).\n\
1817 With a /r modifier, raw instructions in hex are included.\n\
1818 With a single argument, the function surrounding that address is dumped.\n\
1819 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1820 in the form of \"start,end\", or \"start,+length\"."));
1821 set_cmd_completer (c
, location_completer
);
1823 add_com_alias ("va", "disassemble", class_xdb
, 0);
1825 /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would
1826 be a really useful feature. Unfortunately, the below wont do
1827 this. Instead it adds support for the form ``(gdb) ! ls''
1828 (i.e. the space is required). If the ``!'' command below is
1829 added the complains about no ``!'' command would be replaced by
1830 complains about how the ``!'' command is broken :-) */
1832 add_com_alias ("!", "shell", class_support
, 0);
1834 c
= add_com ("make", class_support
, make_command
, _("\
1835 Run the ``make'' program using the rest of the line as arguments."));
1836 set_cmd_completer (c
, filename_completer
);
1837 add_cmd ("user", no_class
, show_user
, _("\
1838 Show definitions of user defined commands.\n\
1839 Argument is the name of the user defined command.\n\
1840 With no argument, show definitions of all user defined commands."), &showlist
);
1841 add_com ("apropos", class_support
, apropos_command
,
1842 _("Search for commands matching a REGEXP"));
1844 add_setshow_integer_cmd ("max-user-call-depth", no_class
,
1845 &max_user_call_depth
, _("\
1846 Set the max call depth for user-defined commands."), _("\
1847 Show the max call depth for user-defined commands."), NULL
,
1849 show_max_user_call_depth
,
1850 &setlist
, &showlist
);
1852 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1853 Set tracing of GDB CLI commands."), _("\
1854 Show state of GDB CLI command tracing."), _("\
1855 When 'on', each command is displayed as it is executed."),
1858 &setlist
, &showlist
);
1860 c
= add_com ("alias", class_support
, alias_command
, _("\
1861 Define a new command that is an alias of an existing command.\n\
1862 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1863 ALIAS is the name of the alias command to create.\n\
1864 COMMAND is the command being aliased to.\n\
1865 If \"-a\" is specified, the command is an abbreviation,\n\
1866 and will not appear in help command list output.\n\
1869 Make \"spe\" an alias of \"set print elements\":\n\
1870 alias spe = set print elements\n\
1871 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1872 alias -a set print elms = set print elements"));