3 Copyright (C) 2000-2017 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 "arch-utils.h"
22 #include "readline/readline.h"
23 #include "readline/tilde.h"
24 #include "completer.h"
25 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
26 #include "gdb_wait.h" /* For shell escape implementation. */
27 #include "gdb_regex.h" /* Used by apropos_command. */
28 #include "gdb_vfork.h"
30 #include "expression.h"
34 #include "filenames.h" /* For DOSish file names. */
38 #include "tracepoint.h"
39 #include "filestuff.h"
45 #include "cli/cli-decode.h"
46 #include "cli/cli-script.h"
47 #include "cli/cli-setshow.h"
48 #include "cli/cli-cmds.h"
49 #include "cli/cli-utils.h"
51 #include "extension.h"
54 #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 (const 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 /* Chain containing all defined "maintenance check" subcommands. */
173 struct cmd_list_element
*maintenancechecklist
;
175 struct cmd_list_element
*setprintlist
;
177 struct cmd_list_element
*showprintlist
;
179 struct cmd_list_element
*setdebuglist
;
181 struct cmd_list_element
*showdebuglist
;
183 struct cmd_list_element
*setchecklist
;
185 struct cmd_list_element
*showchecklist
;
187 /* Command tracing state. */
189 int source_verbose
= 0;
190 int trace_commands
= 0;
192 /* 'script-extension' option support. */
194 static const char script_ext_off
[] = "off";
195 static const char script_ext_soft
[] = "soft";
196 static const char script_ext_strict
[] = "strict";
198 static const char *const script_ext_enums
[] = {
205 static const char *script_ext_mode
= script_ext_soft
;
207 /* Utility used everywhere when at least one argument is needed and
211 error_no_arg (const char *why
)
213 error (_("Argument required (%s)."), why
);
216 /* The "info" command is defined as a prefix, with allow_unknown = 0.
217 Therefore, its own definition is called only for "info" with no
221 info_command (char *arg
, int from_tty
)
223 printf_unfiltered (_("\"info\" must be followed by "
224 "the name of an info command.\n"));
225 help_list (infolist
, "info ", all_commands
, gdb_stdout
);
228 /* The "show" command with no arguments shows all the settings. */
231 show_command (char *arg
, int from_tty
)
233 cmd_show_list (showlist
, from_tty
, "");
236 /* Provide documentation on command or list given by COMMAND. FROM_TTY
240 help_command (char *command
, int from_tty
)
242 help_cmd (command
, gdb_stdout
);
246 /* Note: The "complete" command is used by Emacs to implement completion.
247 [Is that why this function writes output with *_unfiltered?] */
250 complete_command (char *arg_entry
, int from_tty
)
252 const char *arg
= arg_entry
;
256 if (max_completions
== 0)
258 /* Only print this for non-mi frontends. An MI frontend may not
259 be able to handle this. */
260 if (!current_uiout
->is_mi_like_p ())
262 printf_unfiltered (_("max-completions is zero,"
263 " completion is disabled.\n"));
271 completion_tracker tracker_handle_brkchars
;
272 completion_tracker tracker_handle_completions
;
273 completion_tracker
*tracker
;
275 int quote_char
= '\0';
280 word
= completion_find_completion_word (tracker_handle_brkchars
,
283 /* Completers that provide a custom word point in the
284 handle_brkchars phase also compute their completions then.
285 Completers that leave the completion word handling to readline
286 must be called twice. */
287 if (tracker_handle_brkchars
.use_custom_word_point ())
288 tracker
= &tracker_handle_brkchars
;
291 complete_line (tracker_handle_completions
, word
, arg
, strlen (arg
));
292 tracker
= &tracker_handle_completions
;
295 CATCH (ex
, RETURN_MASK_ALL
)
300 std::string
arg_prefix (arg
, word
- arg
);
302 completion_result result
303 = tracker
->build_completion_result (word
, word
- arg
, strlen (arg
));
305 if (result
.number_matches
!= 0)
307 if (result
.number_matches
== 1)
308 printf_unfiltered ("%s%s\n", arg_prefix
.c_str (), result
.match_list
[0]);
311 result
.sort_match_list ();
313 for (size_t i
= 0; i
< result
.number_matches
; i
++)
315 printf_unfiltered ("%s%s",
317 result
.match_list
[i
+ 1]);
319 printf_unfiltered ("%c", quote_char
);
320 printf_unfiltered ("\n");
324 if (result
.number_matches
== max_completions
)
326 /* ARG_PREFIX and WORD are included in the output so that emacs
327 will include the message in the output. */
328 printf_unfiltered (_("%s%s %s\n"),
329 arg_prefix
.c_str (), word
,
330 get_max_completions_reached_message ());
336 is_complete_command (struct cmd_list_element
*c
)
338 return cmd_cfunc_eq (c
, complete_command
);
342 show_version (char *args
, int from_tty
)
344 print_gdb_version (gdb_stdout
);
345 printf_filtered ("\n");
349 show_configuration (char *args
, int from_tty
)
351 print_gdb_configuration (gdb_stdout
);
354 /* Handle the quit command. */
357 quit_command (char *args
, int from_tty
)
361 /* An optional expression may be used to cause gdb to terminate with
362 the value of that expression. */
365 struct value
*val
= parse_and_eval (args
);
367 exit_code
= (int) value_as_long (val
);
370 if (!quit_confirm ())
371 error (_("Not confirmed."));
373 query_if_trace_running (from_tty
);
375 quit_force (args
? &exit_code
: NULL
, from_tty
);
379 pwd_command (char *args
, int from_tty
)
382 error (_("The \"pwd\" command does not take an argument: %s"), args
);
383 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
384 error (_("Error finding name of working directory: %s"),
385 safe_strerror (errno
));
387 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
388 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
389 current_directory
, gdb_dirbuf
);
391 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
395 cd_command (char *dir
, int from_tty
)
398 /* Found something other than leading repetitions of "/..". */
401 struct cleanup
*cleanup
;
403 /* If the new directory is absolute, repeat is a no-op; if relative,
404 repeat might be useful but is more likely to be a mistake. */
407 dir
= tilde_expand (dir
!= NULL
? dir
: "~");
408 cleanup
= make_cleanup (xfree
, dir
);
411 perror_with_name (dir
);
413 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
414 /* There's too much mess with DOSish names like "d:", "d:.",
415 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
416 simply get the canonicalized name of the current directory. */
417 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
421 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
423 /* Remove the trailing slash unless this is a root directory
424 (including a drive letter on non-Unix systems). */
425 if (!(len
== 1) /* "/" */
426 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
427 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
433 dir
= savestring (dir
, len
);
434 if (IS_ABSOLUTE_PATH (dir
))
435 current_directory
= dir
;
438 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
439 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
441 current_directory
= concat (current_directory
, SLASH_STRING
,
446 /* Now simplify any occurrences of `.' and `..' in the pathname. */
449 for (p
= current_directory
; *p
;)
451 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
452 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
453 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
454 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
455 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
459 /* Search backwards for the directory just before the "/.."
460 and obliterate it and the "/..". */
463 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
466 if (q
== current_directory
)
467 /* current_directory is
468 a relative pathname ("can't happen"--leave it alone). */
472 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
477 /* We are dealing with leading repetitions of "/..", for
478 example "/../..", which is the Mach super-root. */
488 forget_cached_source_info ();
491 pwd_command ((char *) 0, 1);
493 do_cleanups (cleanup
);
496 /* Show the current value of the 'script-extension' option. */
499 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
500 struct cmd_list_element
*c
, const char *value
)
502 fprintf_filtered (file
,
503 _("Script filename extension recognition is \"%s\".\n"),
507 /* Try to open SCRIPT_FILE.
508 If successful, the full path name is stored in *FULL_PATHP,
509 and the stream is returned.
510 If not successful, return NULL; errno is set for the last file
513 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
514 search for it in the source search path. */
516 gdb::optional
<open_script
>
517 find_and_open_script (const char *script_file
, int search_path
)
521 struct cleanup
*old_cleanups
;
522 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
523 gdb::optional
<open_script
> opened
;
525 file
= tilde_expand (script_file
);
526 old_cleanups
= make_cleanup (xfree
, file
);
529 search_flags
|= OPF_SEARCH_IN_PATH
;
531 /* Search for and open 'file' on the search path used for source
532 files. Put the full location in *FULL_PATHP. */
534 fd
= openp (source_path
, search_flags
,
535 file
, O_RDONLY
, &temp_path
);
536 gdb::unique_xmalloc_ptr
<char> full_path (temp_path
);
540 int save_errno
= errno
;
541 do_cleanups (old_cleanups
);
546 do_cleanups (old_cleanups
);
548 FILE *result
= fdopen (fd
, FOPEN_RT
);
551 int save_errno
= errno
;
557 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
562 /* Load script FILE, which has already been opened as STREAM.
563 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
564 This is provided as FILE may have been found via the source search path.
565 An important thing to note here is that FILE may be a symlink to a file
566 with a different or non-existing suffix, and thus one cannot infer the
567 extension language from FILE_TO_OPEN. */
570 source_script_from_stream (FILE *stream
, const char *file
,
571 const char *file_to_open
)
573 if (script_ext_mode
!= script_ext_off
)
575 const struct extension_language_defn
*extlang
576 = get_ext_lang_of_file (file
);
580 if (ext_lang_present_p (extlang
))
582 script_sourcer_func
*sourcer
583 = ext_lang_script_sourcer (extlang
);
585 gdb_assert (sourcer
!= NULL
);
586 sourcer (extlang
, stream
, file_to_open
);
589 else if (script_ext_mode
== script_ext_soft
)
591 /* Assume the file is a gdb script.
592 This is handled below. */
595 throw_ext_lang_unsupported (extlang
);
599 script_from_file (stream
, file
);
602 /* Worker to perform the "source" command.
604 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
605 search for it in the source search path. */
608 source_script_with_search (const char *file
, int from_tty
, int search_path
)
611 if (file
== NULL
|| *file
== 0)
612 error (_("source command requires file name of file to source."));
614 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
617 /* The script wasn't found, or was otherwise inaccessible.
618 If the source command was invoked interactively, throw an
619 error. Otherwise (e.g. if it was invoked by a script),
620 just emit a warning, rather than cause an error. */
622 perror_with_name (file
);
625 perror_warning_with_name (file
);
630 /* The python support reopens the file, so we need to pass full_path here
631 in case the file was found on the search path. It's useful to do this
632 anyway so that error messages show the actual file used. But only do
633 this if we (may have) used search_path, as printing the full path in
634 errors for the non-search case can be more noise than signal. */
635 source_script_from_stream (opened
->stream
.get (), file
,
636 search_path
? opened
->full_path
.get () : file
);
639 /* Wrapper around source_script_with_search to export it to main.c
640 for use in loading .gdbinit scripts. */
643 source_script (const char *file
, int from_tty
)
645 source_script_with_search (file
, from_tty
, 0);
648 /* Return the source_verbose global variable to its previous state
649 on exit from the source command, by whatever means. */
651 source_verbose_cleanup (void *old_value
)
653 source_verbose
= *(int *)old_value
;
658 source_command (char *args
, int from_tty
)
660 struct cleanup
*old_cleanups
;
662 int *old_source_verbose
= XNEW (int);
665 *old_source_verbose
= source_verbose
;
666 old_cleanups
= make_cleanup (source_verbose_cleanup
,
669 /* -v causes the source command to run in verbose mode.
670 -s causes the file to be searched in the source search path,
671 even if the file name contains a '/'.
672 We still have to be able to handle filenames with spaces in a
673 backward compatible way, so buildargv is not appropriate. */
677 while (args
[0] != '\0')
679 /* Make sure leading white space does not break the
681 args
= skip_spaces (args
);
686 if (args
[1] == 'v' && isspace (args
[2]))
690 /* Skip passed -v. */
693 else if (args
[1] == 's' && isspace (args
[2]))
697 /* Skip passed -s. */
704 file
= skip_spaces (args
);
707 source_script_with_search (file
, from_tty
, search_path
);
709 do_cleanups (old_cleanups
);
714 echo_command (char *text
, int from_tty
)
716 const char *p
= text
;
720 while ((c
= *p
++) != '\0')
724 /* \ at end of argument is used after spaces
725 so they won't be lost. */
729 c
= parse_escape (get_current_arch (), &p
);
731 printf_filtered ("%c", c
);
734 printf_filtered ("%c", c
);
737 /* Force this output to appear now. */
739 gdb_flush (gdb_stdout
);
743 shell_escape (const char *arg
, int from_tty
)
745 #if defined(CANT_FORK) || \
746 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
747 /* If ARG is NULL, they want an inferior shell, but `system' just
748 reports if the shell is available when passed a NULL arg. */
749 int rc
= system (arg
? arg
: "");
752 arg
= "inferior shell";
756 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
757 safe_strerror (errno
));
758 gdb_flush (gdb_stderr
);
762 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
763 gdb_flush (gdb_stderr
);
766 /* Make sure to return to the directory GDB thinks it is, in case
767 the shell command we just ran changed it. */
768 chdir (current_directory
);
770 #else /* Can fork. */
773 if ((pid
= vfork ()) == 0)
775 const char *p
, *user_shell
;
779 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
780 user_shell
= "/bin/sh";
782 /* Get the name of the shell for arg0. */
783 p
= lbasename (user_shell
);
786 execl (user_shell
, p
, (char *) 0);
788 execl (user_shell
, p
, "-c", arg
, (char *) 0);
790 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
791 safe_strerror (errno
));
792 gdb_flush (gdb_stderr
);
797 waitpid (pid
, &status
, 0);
799 error (_("Fork failed"));
800 #endif /* Can fork. */
803 /* Implementation of the "shell" command. */
806 shell_command (char *arg
, int from_tty
)
808 shell_escape (arg
, from_tty
);
812 edit_command (char *arg
, int from_tty
)
814 struct symtabs_and_lines sals
;
815 struct symtab_and_line sal
;
821 /* Pull in the current default source line if necessary. */
824 set_default_source_symtab_and_line ();
825 sal
= get_current_source_symtab_and_line ();
828 /* Bare "edit" edits file with present line. */
833 error (_("No default source file yet."));
834 sal
.line
+= get_lines_to_list () / 2;
840 /* Now should only be one argument -- decode it in SAL. */
842 event_location_up location
= string_to_event_location (&arg1
,
844 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
855 ambiguous_line_spec (&sals
);
864 error (_("Junk at end of line specification."));
866 /* If line was specified by address, first print exactly which
867 line, and which file. In this case, sal.symtab == 0 means
868 address is outside of all known source files, not that user
869 failed to give a filename. */
872 struct gdbarch
*gdbarch
;
875 error (_("No source file for address %s."),
876 paddress (get_current_arch (), sal
.pc
));
878 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
879 sym
= find_pc_function (sal
.pc
);
881 printf_filtered ("%s is in %s (%s:%d).\n",
882 paddress (gdbarch
, sal
.pc
),
883 SYMBOL_PRINT_NAME (sym
),
884 symtab_to_filename_for_display (sal
.symtab
),
887 printf_filtered ("%s is at %s:%d.\n",
888 paddress (gdbarch
, sal
.pc
),
889 symtab_to_filename_for_display (sal
.symtab
),
893 /* If what was given does not imply a symtab, it must be an
894 undebuggable symbol which means no source code. */
897 error (_("No line number known for %s."), arg
);
900 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
903 fn
= symtab_to_fullname (sal
.symtab
);
905 /* Quote the file name, in case it has whitespace or other special
907 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
908 shell_escape (p
, from_tty
);
913 list_command (char *arg
, int from_tty
)
915 struct symtabs_and_lines sals
, sals_end
;
916 struct symtab_and_line sal
= { 0 };
917 struct symtab_and_line sal_end
= { 0 };
918 struct symtab_and_line cursal
= { 0 };
927 /* Pull in the current default source line if necessary. */
928 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
930 set_default_source_symtab_and_line ();
931 cursal
= get_current_source_symtab_and_line ();
933 /* If this is the first "list" since we've set the current
934 source line, center the listing around that line. */
935 if (get_first_line_listed () == 0)
939 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
941 /* A small special case --- if listing backwards, and we
942 should list only one line, list the preceding line,
943 instead of the exact line we've just shown after e.g.,
944 stopping for a breakpoint. */
945 if (arg
!= NULL
&& arg
[0] == '-'
946 && get_lines_to_list () == 1 && first
> 1)
949 print_source_lines (cursal
.symtab
, first
,
950 first
+ get_lines_to_list (), 0);
953 /* "l" or "l +" lists next ten lines. */
954 else if (arg
== NULL
|| arg
[0] == '+')
955 print_source_lines (cursal
.symtab
, cursal
.line
,
956 cursal
.line
+ get_lines_to_list (), 0);
958 /* "l -" lists previous ten lines, the ones before the ten just
960 else if (arg
[0] == '-')
962 if (get_first_line_listed () == 1)
963 error (_("Already at the start of %s."),
964 symtab_to_filename_for_display (cursal
.symtab
));
965 print_source_lines (cursal
.symtab
,
966 std::max (get_first_line_listed ()
967 - get_lines_to_list (), 1),
968 get_first_line_listed (), 0);
974 /* Now if there is only one argument, decode it in SAL
976 If there are two arguments, decode them in SAL and SAL_END
977 and clear NO_END; however, if one of the arguments is blank,
978 set DUMMY_BEG or DUMMY_END to record that fact. */
980 if (!have_full_symbols () && !have_partial_symbols ())
981 error (_("No symbol table is loaded. Use the \"file\" command."));
988 event_location_up location
= string_to_event_location (&arg1
,
990 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1001 ambiguous_line_spec (&sals
);
1010 /* Record whether the BEG arg is all digits. */
1012 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
1013 linenum_beg
= (p
== arg1
);
1015 while (*arg1
== ' ' || *arg1
== '\t')
1021 while (*arg1
== ' ' || *arg1
== '\t')
1027 event_location_up location
1028 = string_to_event_location (&arg1
, current_language
);
1030 sals_end
= decode_line_1 (location
.get (),
1031 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1033 sals_end
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1034 NULL
, sal
.symtab
, sal
.line
);
1036 filter_sals (&sals_end
);
1037 if (sals_end
.nelts
== 0)
1039 if (sals_end
.nelts
> 1)
1041 ambiguous_line_spec (&sals_end
);
1042 xfree (sals_end
.sals
);
1045 sal_end
= sals_end
.sals
[0];
1046 xfree (sals_end
.sals
);
1051 error (_("Junk at end of line specification."));
1053 if (!no_end
&& !dummy_beg
&& !dummy_end
1054 && sal
.symtab
!= sal_end
.symtab
)
1055 error (_("Specified start and end are in different files."));
1056 if (dummy_beg
&& dummy_end
)
1057 error (_("Two empty args do not say what lines to list."));
1059 /* If line was specified by address,
1060 first print exactly which line, and which file.
1062 In this case, sal.symtab == 0 means address is outside of all
1063 known source files, not that user failed to give a filename. */
1066 struct gdbarch
*gdbarch
;
1068 if (sal
.symtab
== 0)
1069 error (_("No source file for address %s."),
1070 paddress (get_current_arch (), sal
.pc
));
1072 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1073 sym
= find_pc_function (sal
.pc
);
1075 printf_filtered ("%s is in %s (%s:%d).\n",
1076 paddress (gdbarch
, sal
.pc
),
1077 SYMBOL_PRINT_NAME (sym
),
1078 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1080 printf_filtered ("%s is at %s:%d.\n",
1081 paddress (gdbarch
, sal
.pc
),
1082 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1085 /* If line was not specified by just a line number, and it does not
1086 imply a symtab, it must be an undebuggable symbol which means no
1089 if (!linenum_beg
&& sal
.symtab
== 0)
1090 error (_("No line number known for %s."), arg
);
1092 /* If this command is repeated with RET,
1093 turn it into the no-arg variant. */
1098 if (dummy_beg
&& sal_end
.symtab
== 0)
1099 error (_("No default source file yet. Do \"help list\"."));
1101 print_source_lines (sal_end
.symtab
,
1102 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1103 sal_end
.line
+ 1, 0);
1104 else if (sal
.symtab
== 0)
1105 error (_("No default source file yet. Do \"help list\"."));
1108 int first_line
= sal
.line
- get_lines_to_list () / 2;
1110 if (first_line
< 1) first_line
= 1;
1112 print_source_lines (sal
.symtab
,
1114 first_line
+ get_lines_to_list (),
1118 print_source_lines (sal
.symtab
, sal
.line
,
1120 ? sal
.line
+ get_lines_to_list ()
1121 : sal_end
.line
+ 1),
1125 /* Subroutine of disassemble_command to simplify it.
1126 Perform the disassembly.
1127 NAME is the name of the function if known, or NULL.
1128 [LOW,HIGH) are the range of addresses to disassemble.
1129 MIXED is non-zero to print source with the assembler. */
1132 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1133 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1136 if (!tui_is_window_visible (DISASSEM_WIN
))
1139 printf_filtered ("Dump of assembler code ");
1141 printf_filtered ("for function %s:\n", name
);
1143 printf_filtered ("from %s to %s:\n",
1144 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1146 /* Dump the specified range. */
1147 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1149 printf_filtered ("End of assembler dump.\n");
1150 gdb_flush (gdb_stdout
);
1155 tui_show_assembly (gdbarch
, low
);
1160 /* Subroutine of disassemble_command to simplify it.
1161 Print a disassembly of the current function according to FLAGS. */
1164 disassemble_current_function (int flags
)
1166 struct frame_info
*frame
;
1167 struct gdbarch
*gdbarch
;
1168 CORE_ADDR low
, high
, pc
;
1171 frame
= get_selected_frame (_("No frame selected."));
1172 gdbarch
= get_frame_arch (frame
);
1173 pc
= get_frame_address_in_block (frame
);
1174 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1175 error (_("No function contains program counter for selected frame."));
1177 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1180 /* FIXME: cagney/2004-02-07: This should be an observer. */
1181 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1183 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1185 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1188 /* Dump a specified section of assembly code.
1192 - dump the assembly code for the function of the current pc
1193 disassemble [/mrs] addr
1194 - dump the assembly code for the function at ADDR
1195 disassemble [/mrs] low,high
1196 disassemble [/mrs] low,+length
1197 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1199 A /m modifier will include source code with the assembly in a
1200 "source centric" view. This view lists only the file of the first insn,
1201 even if other source files are involved (e.g., inlined functions), and
1202 the output is in source order, even with optimized code. This view is
1203 considered deprecated as it hasn't been useful in practice.
1205 A /r modifier will include raw instructions in hex with the assembly.
1207 A /s modifier will include source code with the assembly, like /m, with
1208 two important differences:
1209 1) The output is still in pc address order.
1210 2) File names and contents for all relevant source files are displayed. */
1213 disassemble_command (char *arg
, int from_tty
)
1215 struct gdbarch
*gdbarch
= get_current_arch ();
1216 CORE_ADDR low
, high
;
1231 error (_("Missing modifier."));
1233 while (*p
&& ! isspace (*p
))
1238 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1241 flags
|= DISASSEMBLY_RAW_INSN
;
1244 flags
|= DISASSEMBLY_SOURCE
;
1247 error (_("Invalid disassembly modifier."));
1251 p
= skip_spaces_const (p
);
1254 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1255 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1256 error (_("Cannot specify both /m and /s."));
1260 flags
|= DISASSEMBLY_OMIT_FNAME
;
1261 disassemble_current_function (flags
);
1265 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1271 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1272 error (_("No function contains specified address."));
1274 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1277 /* FIXME: cagney/2004-02-07: This should be an observer. */
1278 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1280 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1281 flags
|= DISASSEMBLY_OMIT_FNAME
;
1285 /* Two arguments. */
1288 p
= skip_spaces_const (p
);
1294 high
= parse_and_eval_address (p
);
1299 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1303 make_command (char *arg
, int from_tty
)
1306 shell_escape ("make", from_tty
);
1309 std::string cmd
= std::string ("make ") + arg
;
1311 shell_escape (cmd
.c_str (), from_tty
);
1316 show_user (char *args
, int from_tty
)
1318 struct cmd_list_element
*c
;
1319 extern struct cmd_list_element
*cmdlist
;
1323 const char *comname
= args
;
1325 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1326 if (!cli_user_command_p (c
))
1327 error (_("Not a user command."));
1328 show_user_1 (c
, "", args
, gdb_stdout
);
1332 for (c
= cmdlist
; c
; c
= c
->next
)
1334 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1335 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1340 /* Search through names of commands and documentations for a certain
1341 regular expression. */
1344 apropos_command (char *searchstr
, int from_tty
)
1346 if (searchstr
== NULL
)
1347 error (_("REGEXP string is empty"));
1349 compiled_regex
pattern (searchstr
, REG_ICASE
,
1350 _("Error in regular expression"));
1352 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1355 /* Subroutine of alias_command to simplify it.
1356 Return the first N elements of ARGV flattened back to a string
1357 with a space separating each element.
1358 ARGV may not be NULL.
1359 This does not take care of quoting elements in case they contain spaces
1363 argv_to_string (char **argv
, int n
)
1368 gdb_assert (argv
!= NULL
);
1369 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1371 for (i
= 0; i
< n
; ++i
)
1381 /* Subroutine of alias_command to simplify it.
1382 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1385 valid_command_p (const char *command
)
1387 struct cmd_list_element
*c
;
1389 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1391 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1394 /* This is the slightly tricky part.
1395 lookup_cmd_1 will return a pointer to the last part of COMMAND
1396 to match, leaving COMMAND pointing at the remainder. */
1397 while (*command
== ' ' || *command
== '\t')
1399 return *command
== '\0';
1402 /* Called when "alias" was incorrectly used. */
1405 alias_usage_error (void)
1407 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1410 /* Make an alias of an existing command. */
1413 alias_command (char *args
, int from_tty
)
1415 int i
, alias_argc
, command_argc
;
1416 int abbrev_flag
= 0;
1417 char *args2
, *equals
;
1418 const char *alias
, *command
;
1419 char **alias_argv
, **command_argv
;
1420 struct cleanup
*cleanup
;
1422 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1423 alias_usage_error ();
1425 args2
= xstrdup (args
);
1426 cleanup
= make_cleanup (xfree
, args2
);
1427 equals
= strchr (args2
, '=');
1429 alias_argv
= gdb_buildargv (args2
);
1430 make_cleanup_freeargv (alias_argv
);
1431 command_argv
= gdb_buildargv (equals
+ 1);
1432 make_cleanup_freeargv (command_argv
);
1434 for (i
= 0; alias_argv
[i
] != NULL
; )
1436 if (strcmp (alias_argv
[i
], "-a") == 0)
1441 else if (strcmp (alias_argv
[i
], "--") == 0)
1450 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1451 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1452 alias_usage_error ();
1454 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1456 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1459 error (_("Invalid command name: %s"), alias_argv
[i
]);
1461 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1465 alias_argc
= countargv (alias_argv
);
1466 command_argc
= countargv (command_argv
);
1468 /* COMMAND must exist.
1469 Reconstruct the command to remove any extraneous spaces,
1470 for better error messages. */
1471 std::string
command_string (argv_to_string (command_argv
, command_argc
));
1472 command
= command_string
.c_str ();
1473 if (! valid_command_p (command
))
1474 error (_("Invalid command to alias to: %s"), command
);
1476 /* ALIAS must not exist. */
1477 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1478 alias
= alias_string
.c_str ();
1479 if (valid_command_p (alias
))
1480 error (_("Alias already exists: %s"), alias
);
1482 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1483 Example: alias spe = set print elements
1485 Otherwise ALIAS and COMMAND must have the same number of words,
1486 and every word except the last must match; and the last word of
1487 ALIAS is made an alias of the last word of COMMAND.
1488 Example: alias set print elms = set pr elem
1489 Note that unambiguous abbreviations are allowed. */
1491 if (alias_argc
== 1)
1493 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1494 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1499 const char *alias_prefix
, *command_prefix
;
1500 struct cmd_list_element
*c_alias
, *c_command
;
1502 if (alias_argc
!= command_argc
)
1503 error (_("Mismatched command length between ALIAS and COMMAND."));
1505 /* Create copies of ALIAS and COMMAND without the last word,
1506 and use that to verify the leading elements match. */
1507 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1509 std::string
command_prefix_string (argv_to_string (alias_argv
,
1511 alias_prefix
= alias_prefix_string
.c_str ();
1512 command_prefix
= command_prefix_string
.c_str ();
1514 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1515 /* We've already tried to look up COMMAND. */
1516 gdb_assert (c_command
!= NULL
1517 && c_command
!= (struct cmd_list_element
*) -1);
1518 gdb_assert (c_command
->prefixlist
!= NULL
);
1519 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1520 if (c_alias
!= c_command
)
1521 error (_("ALIAS and COMMAND prefixes do not match."));
1523 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1524 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1525 command_argv
[command_argc
- 1],
1526 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1529 do_cleanups (cleanup
);
1532 /* Print a list of files and line numbers which a user may choose from
1533 in order to list a function which was specified ambiguously (as
1534 with `list classname::overloadedfuncname', for example). The
1535 vector in SALS provides the filenames and line numbers. */
1538 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1542 for (i
= 0; i
< sals
->nelts
; ++i
)
1543 printf_filtered (_("file: \"%s\", line number: %d\n"),
1544 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1545 sals
->sals
[i
].line
);
1548 /* Sort function for filter_sals. */
1551 compare_symtabs (const void *a
, const void *b
)
1553 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1554 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1555 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1556 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1564 else if (dirb
== NULL
)
1571 r
= filename_cmp (dira
, dirb
);
1576 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1580 if (sala
->line
< salb
->line
)
1582 return sala
->line
== salb
->line
? 0 : 1;
1585 /* Remove any SALs that do not match the current program space, or
1586 which appear to be "file:line" duplicates. */
1589 filter_sals (struct symtabs_and_lines
*sals
)
1594 for (i
= 0; i
< sals
->nelts
; ++i
)
1596 if (sals
->sals
[i
].pspace
== current_program_space
1597 && sals
->sals
[i
].symtab
!= NULL
)
1599 sals
->sals
[out
] = sals
->sals
[i
];
1605 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1610 for (i
= 1; i
< sals
->nelts
; ++i
)
1612 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1614 /* Symtabs differ. */
1615 sals
->sals
[out
] = sals
->sals
[i
];
1621 if (sals
->nelts
== 0)
1631 set_debug (char *arg
, int from_tty
)
1633 printf_unfiltered (_("\"set debug\" must be followed by "
1634 "the name of a debug subcommand.\n"));
1635 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1639 show_debug (char *args
, int from_tty
)
1641 cmd_show_list (showdebuglist
, from_tty
, "");
1645 init_cmd_lists (void)
1647 max_user_call_depth
= 1024;
1651 show_info_verbose (struct ui_file
*file
, int from_tty
,
1652 struct cmd_list_element
*c
,
1656 fprintf_filtered (file
,
1657 _("Verbose printing of informational messages is %s.\n"),
1660 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1664 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1665 struct cmd_list_element
*c
, const char *value
)
1667 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1672 show_remote_debug (struct ui_file
*file
, int from_tty
,
1673 struct cmd_list_element
*c
, const char *value
)
1675 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1680 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1681 struct cmd_list_element
*c
, const char *value
)
1683 fprintf_filtered (file
,
1684 _("Timeout limit to wait for target to respond is %s.\n"),
1689 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1690 struct cmd_list_element
*c
, const char *value
)
1692 fprintf_filtered (file
,
1693 _("The max call depth for user-defined commands is %s.\n"),
1699 initialize_file_ftype _initialize_cli_cmds
;
1702 _initialize_cli_cmds (void)
1704 struct cmd_list_element
*c
;
1706 /* Define the classes of commands.
1707 They will appear in the help list in alphabetical order. */
1709 add_cmd ("internals", class_maintenance
, NULL
, _("\
1710 Maintenance commands.\n\
1711 Some gdb commands are provided just for use by gdb maintainers.\n\
1712 These commands are subject to frequent change, and may not be as\n\
1713 well documented as user commands."),
1715 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1716 add_cmd ("aliases", class_alias
, NULL
,
1717 _("Aliases of other commands."), &cmdlist
);
1718 add_cmd ("user-defined", class_user
, NULL
, _("\
1719 User-defined commands.\n\
1720 The commands in this class are those defined by the user.\n\
1721 Use the \"define\" command to define a command."), &cmdlist
);
1722 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1724 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1725 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1727 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1728 _("Making program stop at certain points."), &cmdlist
);
1729 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1730 add_cmd ("stack", class_stack
, NULL
, _("\
1731 Examining the stack.\n\
1732 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1733 counting from zero for the innermost (currently executing) frame.\n\n\
1734 At any time gdb identifies one frame as the \"selected\" frame.\n\
1735 Variable lookups are done with respect to the selected frame.\n\
1736 When the program being debugged stops, gdb selects the innermost frame.\n\
1737 The commands below can be used to select other frames by number or address."),
1739 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1741 /* Define general commands. */
1743 add_com ("pwd", class_files
, pwd_command
, _("\
1744 Print working directory. This is used for your program as well."));
1746 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1747 Set working directory to DIR for debugger and program being debugged.\n\
1748 The change does not take effect for the program being debugged\n\
1749 until the next time it is started."), &cmdlist
);
1750 set_cmd_completer (c
, filename_completer
);
1752 add_com ("echo", class_support
, echo_command
, _("\
1753 Print a constant string. Give string as argument.\n\
1754 C escape sequences may be used in the argument.\n\
1755 No newline is added at the end of the argument;\n\
1756 use \"\\n\" if you want a newline to be printed.\n\
1757 Since leading and trailing whitespace are ignored in command arguments,\n\
1758 if you want to print some you must use \"\\\" before leading whitespace\n\
1759 to be printed or after trailing whitespace."));
1761 add_setshow_enum_cmd ("script-extension", class_support
,
1762 script_ext_enums
, &script_ext_mode
, _("\
1763 Set mode for script filename extension recognition."), _("\
1764 Show mode for script filename extension recognition."), _("\
1765 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1766 soft == evaluate script according to filename extension, fallback to GDB script"
1768 strict == evaluate script according to filename extension, error if not supported"
1771 show_script_ext_mode
,
1772 &setlist
, &showlist
);
1774 add_com ("quit", class_support
, quit_command
, _("\
1776 Usage: quit [EXPR]\n\
1777 The optional expression EXPR, if present, is evaluated and the result\n\
1778 used as GDB's exit code. The default is zero."));
1779 c
= add_com ("help", class_support
, help_command
,
1780 _("Print list of commands."));
1781 set_cmd_completer (c
, command_completer
);
1782 add_com_alias ("q", "quit", class_support
, 1);
1783 add_com_alias ("h", "help", class_support
, 1);
1785 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1786 Set verbosity."), _("\
1787 Show verbosity."), NULL
,
1790 &setlist
, &showlist
);
1792 add_prefix_cmd ("history", class_support
, set_history
,
1793 _("Generic command for setting command history parameters."),
1794 &sethistlist
, "set history ", 0, &setlist
);
1795 add_prefix_cmd ("history", class_support
, show_history
,
1796 _("Generic command for showing command history parameters."),
1797 &showhistlist
, "show history ", 0, &showlist
);
1799 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1800 Set history expansion on command input."), _("\
1801 Show history expansion on command input."), _("\
1802 Without an argument, history expansion is enabled."),
1804 show_history_expansion_p
,
1805 &sethistlist
, &showhistlist
);
1807 add_prefix_cmd ("info", class_info
, info_command
, _("\
1808 Generic command for showing things about the program being debugged."),
1809 &infolist
, "info ", 0, &cmdlist
);
1810 add_com_alias ("i", "info", class_info
, 1);
1811 add_com_alias ("inf", "info", class_info
, 1);
1813 add_com ("complete", class_obscure
, complete_command
,
1814 _("List the completions for the rest of the line as a command."));
1816 add_prefix_cmd ("show", class_info
, show_command
, _("\
1817 Generic command for showing things about the debugger."),
1818 &showlist
, "show ", 0, &cmdlist
);
1819 /* Another way to get at the same thing. */
1820 add_info ("set", show_command
, _("Show all GDB settings."));
1822 add_cmd ("commands", no_set_class
, show_commands
, _("\
1823 Show the history of commands you typed.\n\
1824 You can supply a command number to start with, or a `+' to start after\n\
1825 the previous command number shown."),
1828 add_cmd ("version", no_set_class
, show_version
,
1829 _("Show what version of GDB this is."), &showlist
);
1831 add_cmd ("configuration", no_set_class
, show_configuration
,
1832 _("Show how GDB was configured at build time."), &showlist
);
1834 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1835 Set debugging of remote protocol."), _("\
1836 Show debugging of remote protocol."), _("\
1837 When enabled, each packet sent or received with the remote target\n\
1841 &setdebuglist
, &showdebuglist
);
1843 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1844 &remote_timeout
, _("\
1845 Set timeout limit to wait for target to respond."), _("\
1846 Show timeout limit to wait for target to respond."), _("\
1847 This value is used to set the time limit for gdb to wait for a response\n\
1850 show_remote_timeout
,
1851 &setlist
, &showlist
);
1853 add_prefix_cmd ("debug", no_class
, set_debug
,
1854 _("Generic command for setting gdb debugging flags"),
1855 &setdebuglist
, "set debug ", 0, &setlist
);
1857 add_prefix_cmd ("debug", no_class
, show_debug
,
1858 _("Generic command for showing gdb debugging flags"),
1859 &showdebuglist
, "show debug ", 0, &showlist
);
1861 c
= add_com ("shell", class_support
, shell_command
, _("\
1862 Execute the rest of the line as a shell command.\n\
1863 With no arguments, run an inferior shell."));
1864 set_cmd_completer (c
, filename_completer
);
1866 c
= add_com ("edit", class_files
, edit_command
, _("\
1867 Edit specified file or function.\n\
1868 With no argument, edits file containing most recent line listed.\n\
1869 Editing targets can be specified in these ways:\n\
1870 FILE:LINENUM, to edit at that line in that file,\n\
1871 FUNCTION, to edit at the beginning of that function,\n\
1872 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1873 *ADDRESS, to edit at the line containing that address.\n\
1874 Uses EDITOR environment variable contents as editor (or ex as default)."));
1876 c
->completer
= location_completer
;
1878 add_com ("list", class_files
, list_command
, _("\
1879 List specified function or line.\n\
1880 With no argument, lists ten more lines after or around previous listing.\n\
1881 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1882 One argument specifies a line, and ten lines are listed around that line.\n\
1883 Two arguments with comma between specify starting and ending lines to list.\n\
1884 Lines can be specified in these ways:\n\
1885 LINENUM, to list around that line in current file,\n\
1886 FILE:LINENUM, to list around that line in that file,\n\
1887 FUNCTION, to list around beginning of that function,\n\
1888 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1889 *ADDRESS, to list around the line containing that address.\n\
1890 With two args, if one is empty, it stands for ten lines away from\n\
1893 By default, when a single location is given, display ten lines.\n\
1894 This can be changed using \"set listsize\", and the current value\n\
1895 can be shown using \"show listsize\"."));
1897 add_com_alias ("l", "list", class_files
, 1);
1900 add_com_alias ("file", "list", class_files
, 1);
1902 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1903 Disassemble a specified section of memory.\n\
1904 Default is the function surrounding the pc of the selected frame.\n\
1906 With a /m modifier, source lines are included (if available).\n\
1907 This view is \"source centric\": the output is in source line order,\n\
1908 regardless of any optimization that is present. Only the main source file\n\
1909 is displayed, not those of, e.g., any inlined functions.\n\
1910 This modifier hasn't proved useful in practice and is deprecated\n\
1913 With a /s modifier, source lines are included (if available).\n\
1914 This differs from /m in two important respects:\n\
1915 - the output is still in pc address order, and\n\
1916 - file names and contents for all relevant source files are displayed.\n\
1918 With a /r modifier, raw instructions in hex are included.\n\
1920 With a single argument, the function surrounding that address is dumped.\n\
1921 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1922 in the form of \"start,end\", or \"start,+length\".\n\
1924 Note that the address is interpreted as an expression, not as a location\n\
1925 like in the \"break\" command.\n\
1926 So, for example, if you want to disassemble function bar in file foo.c\n\
1927 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1928 set_cmd_completer (c
, location_completer
);
1930 add_com_alias ("!", "shell", class_support
, 0);
1932 c
= add_com ("make", class_support
, make_command
, _("\
1933 Run the ``make'' program using the rest of the line as arguments."));
1934 set_cmd_completer (c
, filename_completer
);
1935 add_cmd ("user", no_class
, show_user
, _("\
1936 Show definitions of non-python/scheme user defined commands.\n\
1937 Argument is the name of the user defined command.\n\
1938 With no argument, show definitions of all user defined commands."), &showlist
);
1939 add_com ("apropos", class_support
, apropos_command
,
1940 _("Search for commands matching a REGEXP"));
1942 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1943 &max_user_call_depth
, _("\
1944 Set the max call depth for non-python/scheme user-defined commands."), _("\
1945 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1947 show_max_user_call_depth
,
1948 &setlist
, &showlist
);
1950 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1951 Set tracing of GDB CLI commands."), _("\
1952 Show state of GDB CLI command tracing."), _("\
1953 When 'on', each command is displayed as it is executed."),
1956 &setlist
, &showlist
);
1958 c
= add_com ("alias", class_support
, alias_command
, _("\
1959 Define a new command that is an alias of an existing command.\n\
1960 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1961 ALIAS is the name of the alias command to create.\n\
1962 COMMAND is the command being aliased to.\n\
1963 If \"-a\" is specified, the command is an abbreviation,\n\
1964 and will not appear in help command list output.\n\
1967 Make \"spe\" an alias of \"set print elements\":\n\
1968 alias spe = set print elements\n\
1969 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1970 alias -a set print elms = set print elements"));
1974 init_cli_cmds (void)
1976 struct cmd_list_element
*c
;
1977 char *source_help_text
;
1979 source_help_text
= xstrprintf (_("\
1980 Read commands from a file named FILE.\n\
1982 Usage: source [-s] [-v] FILE\n\
1983 -s: search for the script in the source search path,\n\
1984 even if FILE contains directories.\n\
1985 -v: each command in FILE is echoed as it is executed.\n\
1987 Note that the file \"%s\" is read automatically in this way\n\
1988 when GDB is started."), gdbinit
);
1989 c
= add_cmd ("source", class_support
, source_command
,
1990 source_help_text
, &cmdlist
);
1991 set_cmd_completer (c
, filename_completer
);