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 (gdb::array_view
<const symtab_and_line
> sals
,
94 const char *format
, ...)
95 ATTRIBUTE_PRINTF (2, 3);
97 static void filter_sals (std::vector
<symtab_and_line
> &);
100 /* Limit the call depth of user-defined commands */
101 unsigned int max_user_call_depth
;
103 /* Define all cmd_list_elements. */
105 /* Chain containing all defined commands. */
107 struct cmd_list_element
*cmdlist
;
109 /* Chain containing all defined info subcommands. */
111 struct cmd_list_element
*infolist
;
113 /* Chain containing all defined enable subcommands. */
115 struct cmd_list_element
*enablelist
;
117 /* Chain containing all defined disable subcommands. */
119 struct cmd_list_element
*disablelist
;
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 set subcommands */
139 struct cmd_list_element
*setlist
;
141 /* Chain containing all defined unset subcommands */
143 struct cmd_list_element
*unsetlist
;
145 /* Chain containing all defined show subcommands. */
147 struct cmd_list_element
*showlist
;
149 /* Chain containing all defined \"set history\". */
151 struct cmd_list_element
*sethistlist
;
153 /* Chain containing all defined \"show history\". */
155 struct cmd_list_element
*showhistlist
;
157 /* Chain containing all defined \"unset history\". */
159 struct cmd_list_element
*unsethistlist
;
161 /* Chain containing all defined maintenance subcommands. */
163 struct cmd_list_element
*maintenancelist
;
165 /* Chain containing all defined "maintenance info" subcommands. */
167 struct cmd_list_element
*maintenanceinfolist
;
169 /* Chain containing all defined "maintenance print" subcommands. */
171 struct cmd_list_element
*maintenanceprintlist
;
173 /* Chain containing all defined "maintenance check" subcommands. */
175 struct cmd_list_element
*maintenancechecklist
;
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 *const 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 (const 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 ", all_commands
, 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
);
248 /* Note: The "complete" command is used by Emacs to implement completion.
249 [Is that why this function writes output with *_unfiltered?] */
252 complete_command (char *arg_entry
, int from_tty
)
254 const char *arg
= arg_entry
;
258 if (max_completions
== 0)
260 /* Only print this for non-mi frontends. An MI frontend may not
261 be able to handle this. */
262 if (!current_uiout
->is_mi_like_p ())
264 printf_unfiltered (_("max-completions is zero,"
265 " completion is disabled.\n"));
273 completion_tracker tracker_handle_brkchars
;
274 completion_tracker tracker_handle_completions
;
275 completion_tracker
*tracker
;
277 int quote_char
= '\0';
282 word
= completion_find_completion_word (tracker_handle_brkchars
,
285 /* Completers that provide a custom word point in the
286 handle_brkchars phase also compute their completions then.
287 Completers that leave the completion word handling to readline
288 must be called twice. */
289 if (tracker_handle_brkchars
.use_custom_word_point ())
290 tracker
= &tracker_handle_brkchars
;
293 complete_line (tracker_handle_completions
, word
, arg
, strlen (arg
));
294 tracker
= &tracker_handle_completions
;
297 CATCH (ex
, RETURN_MASK_ALL
)
302 std::string
arg_prefix (arg
, word
- arg
);
304 completion_result result
305 = tracker
->build_completion_result (word
, word
- arg
, strlen (arg
));
307 if (result
.number_matches
!= 0)
309 if (result
.number_matches
== 1)
310 printf_unfiltered ("%s%s\n", arg_prefix
.c_str (), result
.match_list
[0]);
313 result
.sort_match_list ();
315 for (size_t i
= 0; i
< result
.number_matches
; i
++)
317 printf_unfiltered ("%s%s",
319 result
.match_list
[i
+ 1]);
321 printf_unfiltered ("%c", quote_char
);
322 printf_unfiltered ("\n");
326 if (result
.number_matches
== max_completions
)
328 /* ARG_PREFIX and WORD are included in the output so that emacs
329 will include the message in the output. */
330 printf_unfiltered (_("%s%s %s\n"),
331 arg_prefix
.c_str (), word
,
332 get_max_completions_reached_message ());
338 is_complete_command (struct cmd_list_element
*c
)
340 return cmd_cfunc_eq (c
, complete_command
);
344 show_version (char *args
, int from_tty
)
346 print_gdb_version (gdb_stdout
);
347 printf_filtered ("\n");
351 show_configuration (char *args
, int from_tty
)
353 print_gdb_configuration (gdb_stdout
);
356 /* Handle the quit command. */
359 quit_command (char *args
, int from_tty
)
363 /* An optional expression may be used to cause gdb to terminate with
364 the value of that expression. */
367 struct value
*val
= parse_and_eval (args
);
369 exit_code
= (int) value_as_long (val
);
372 if (!quit_confirm ())
373 error (_("Not confirmed."));
375 query_if_trace_running (from_tty
);
377 quit_force (args
? &exit_code
: NULL
, from_tty
);
381 pwd_command (char *args
, int from_tty
)
384 error (_("The \"pwd\" command does not take an argument: %s"), args
);
385 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
386 error (_("Error finding name of working directory: %s"),
387 safe_strerror (errno
));
389 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
390 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
391 current_directory
, gdb_dirbuf
);
393 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
397 cd_command (char *dir
, int from_tty
)
400 /* Found something other than leading repetitions of "/..". */
404 /* If the new directory is absolute, repeat is a no-op; if relative,
405 repeat might be useful but is more likely to be a mistake. */
408 gdb::unique_xmalloc_ptr
<char> dir_holder
409 (tilde_expand (dir
!= NULL
? dir
: "~"));
410 dir
= dir_holder
.get ();
413 perror_with_name (dir
);
415 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
416 /* There's too much mess with DOSish names like "d:", "d:.",
417 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
418 simply get the canonicalized name of the current directory. */
419 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
423 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
425 /* Remove the trailing slash unless this is a root directory
426 (including a drive letter on non-Unix systems). */
427 if (!(len
== 1) /* "/" */
428 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
429 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
435 dir_holder
.reset (savestring (dir
, len
));
436 if (IS_ABSOLUTE_PATH (dir_holder
.get ()))
437 current_directory
= dir_holder
.release ();
440 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
441 current_directory
= concat (current_directory
, dir_holder
.get (),
444 current_directory
= concat (current_directory
, SLASH_STRING
,
445 dir_holder
.get (), (char *) NULL
);
448 /* Now simplify any occurrences of `.' and `..' in the pathname. */
451 for (p
= current_directory
; *p
;)
453 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
454 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
455 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
456 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
457 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
461 /* Search backwards for the directory just before the "/.."
462 and obliterate it and the "/..". */
465 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
468 if (q
== current_directory
)
469 /* current_directory is
470 a relative pathname ("can't happen"--leave it alone). */
474 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
479 /* We are dealing with leading repetitions of "/..", for
480 example "/../..", which is the Mach super-root. */
490 forget_cached_source_info ();
493 pwd_command ((char *) 0, 1);
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
)
520 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
521 gdb::optional
<open_script
> opened
;
523 gdb::unique_xmalloc_ptr
<char> file (tilde_expand (script_file
));
526 search_flags
|= OPF_SEARCH_IN_PATH
;
528 /* Search for and open 'file' on the search path used for source
529 files. Put the full location in *FULL_PATHP. */
531 fd
= openp (source_path
, search_flags
,
532 file
.get (), O_RDONLY
, &temp_path
);
533 gdb::unique_xmalloc_ptr
<char> full_path (temp_path
);
538 FILE *result
= fdopen (fd
, FOPEN_RT
);
541 int save_errno
= errno
;
547 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
552 /* Load script FILE, which has already been opened as STREAM.
553 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
554 This is provided as FILE may have been found via the source search path.
555 An important thing to note here is that FILE may be a symlink to a file
556 with a different or non-existing suffix, and thus one cannot infer the
557 extension language from FILE_TO_OPEN. */
560 source_script_from_stream (FILE *stream
, const char *file
,
561 const char *file_to_open
)
563 if (script_ext_mode
!= script_ext_off
)
565 const struct extension_language_defn
*extlang
566 = get_ext_lang_of_file (file
);
570 if (ext_lang_present_p (extlang
))
572 script_sourcer_func
*sourcer
573 = ext_lang_script_sourcer (extlang
);
575 gdb_assert (sourcer
!= NULL
);
576 sourcer (extlang
, stream
, file_to_open
);
579 else if (script_ext_mode
== script_ext_soft
)
581 /* Assume the file is a gdb script.
582 This is handled below. */
585 throw_ext_lang_unsupported (extlang
);
589 script_from_file (stream
, file
);
592 /* Worker to perform the "source" command.
594 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
595 search for it in the source search path. */
598 source_script_with_search (const char *file
, int from_tty
, int search_path
)
601 if (file
== NULL
|| *file
== 0)
602 error (_("source command requires file name of file to source."));
604 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
607 /* The script wasn't found, or was otherwise inaccessible.
608 If the source command was invoked interactively, throw an
609 error. Otherwise (e.g. if it was invoked by a script),
610 just emit a warning, rather than cause an error. */
612 perror_with_name (file
);
615 perror_warning_with_name (file
);
620 /* The python support reopens the file, so we need to pass full_path here
621 in case the file was found on the search path. It's useful to do this
622 anyway so that error messages show the actual file used. But only do
623 this if we (may have) used search_path, as printing the full path in
624 errors for the non-search case can be more noise than signal. */
625 source_script_from_stream (opened
->stream
.get (), file
,
626 search_path
? opened
->full_path
.get () : file
);
629 /* Wrapper around source_script_with_search to export it to main.c
630 for use in loading .gdbinit scripts. */
633 source_script (const char *file
, int from_tty
)
635 source_script_with_search (file
, from_tty
, 0);
639 source_command (char *args
, int from_tty
)
644 scoped_restore save_source_verbose
= make_scoped_restore (&source_verbose
);
646 /* -v causes the source command to run in verbose mode.
647 -s causes the file to be searched in the source search path,
648 even if the file name contains a '/'.
649 We still have to be able to handle filenames with spaces in a
650 backward compatible way, so buildargv is not appropriate. */
654 while (args
[0] != '\0')
656 /* Make sure leading white space does not break the
658 args
= skip_spaces (args
);
663 if (args
[1] == 'v' && isspace (args
[2]))
667 /* Skip passed -v. */
670 else if (args
[1] == 's' && isspace (args
[2]))
674 /* Skip passed -s. */
681 file
= skip_spaces (args
);
684 source_script_with_search (file
, from_tty
, search_path
);
689 echo_command (char *text
, int from_tty
)
691 const char *p
= text
;
695 while ((c
= *p
++) != '\0')
699 /* \ at end of argument is used after spaces
700 so they won't be lost. */
704 c
= parse_escape (get_current_arch (), &p
);
706 printf_filtered ("%c", c
);
709 printf_filtered ("%c", c
);
712 /* Force this output to appear now. */
714 gdb_flush (gdb_stdout
);
718 shell_escape (const char *arg
, int from_tty
)
720 #if defined(CANT_FORK) || \
721 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
722 /* If ARG is NULL, they want an inferior shell, but `system' just
723 reports if the shell is available when passed a NULL arg. */
724 int rc
= system (arg
? arg
: "");
727 arg
= "inferior shell";
731 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
732 safe_strerror (errno
));
733 gdb_flush (gdb_stderr
);
737 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
738 gdb_flush (gdb_stderr
);
741 /* Make sure to return to the directory GDB thinks it is, in case
742 the shell command we just ran changed it. */
743 chdir (current_directory
);
745 #else /* Can fork. */
748 if ((pid
= vfork ()) == 0)
750 const char *p
, *user_shell
;
754 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
755 user_shell
= "/bin/sh";
757 /* Get the name of the shell for arg0. */
758 p
= lbasename (user_shell
);
761 execl (user_shell
, p
, (char *) 0);
763 execl (user_shell
, p
, "-c", arg
, (char *) 0);
765 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
766 safe_strerror (errno
));
767 gdb_flush (gdb_stderr
);
772 waitpid (pid
, &status
, 0);
774 error (_("Fork failed"));
775 #endif /* Can fork. */
778 /* Implementation of the "shell" command. */
781 shell_command (char *arg
, int from_tty
)
783 shell_escape (arg
, from_tty
);
787 edit_command (char *arg
, int from_tty
)
789 struct symtab_and_line sal
;
795 /* Pull in the current default source line if necessary. */
798 set_default_source_symtab_and_line ();
799 sal
= get_current_source_symtab_and_line ();
802 /* Bare "edit" edits file with present line. */
807 error (_("No default source file yet."));
808 sal
.line
+= get_lines_to_list () / 2;
814 /* Now should only be one argument -- decode it in SAL. */
816 event_location_up location
= string_to_event_location (&arg1
,
818 std::vector
<symtab_and_line
> sals
= decode_line_1 (location
.get (),
819 DECODE_LINE_LIST_MODE
,
828 if (sals
.size () > 1)
830 ambiguous_line_spec (sals
,
831 _("Specified line is ambiguous:\n"));
838 error (_("Junk at end of line specification."));
840 /* If line was specified by address, first print exactly which
841 line, and which file. In this case, sal.symtab == 0 means
842 address is outside of all known source files, not that user
843 failed to give a filename. */
846 struct gdbarch
*gdbarch
;
849 error (_("No source file for address %s."),
850 paddress (get_current_arch (), sal
.pc
));
852 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
853 sym
= find_pc_function (sal
.pc
);
855 printf_filtered ("%s is in %s (%s:%d).\n",
856 paddress (gdbarch
, sal
.pc
),
857 SYMBOL_PRINT_NAME (sym
),
858 symtab_to_filename_for_display (sal
.symtab
),
861 printf_filtered ("%s is at %s:%d.\n",
862 paddress (gdbarch
, sal
.pc
),
863 symtab_to_filename_for_display (sal
.symtab
),
867 /* If what was given does not imply a symtab, it must be an
868 undebuggable symbol which means no source code. */
871 error (_("No line number known for %s."), arg
);
874 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
877 fn
= symtab_to_fullname (sal
.symtab
);
879 /* Quote the file name, in case it has whitespace or other special
881 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
882 shell_escape (p
, from_tty
);
887 list_command (char *arg
, int from_tty
)
897 /* Pull in the current default source line if necessary. */
898 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
900 set_default_source_symtab_and_line ();
901 symtab_and_line cursal
= get_current_source_symtab_and_line ();
903 /* If this is the first "list" since we've set the current
904 source line, center the listing around that line. */
905 if (get_first_line_listed () == 0)
909 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
911 /* A small special case --- if listing backwards, and we
912 should list only one line, list the preceding line,
913 instead of the exact line we've just shown after e.g.,
914 stopping for a breakpoint. */
915 if (arg
!= NULL
&& arg
[0] == '-'
916 && get_lines_to_list () == 1 && first
> 1)
919 print_source_lines (cursal
.symtab
, first
,
920 first
+ get_lines_to_list (), 0);
923 /* "l" or "l +" lists next ten lines. */
924 else if (arg
== NULL
|| arg
[0] == '+')
925 print_source_lines (cursal
.symtab
, cursal
.line
,
926 cursal
.line
+ get_lines_to_list (), 0);
928 /* "l -" lists previous ten lines, the ones before the ten just
930 else if (arg
[0] == '-')
932 if (get_first_line_listed () == 1)
933 error (_("Already at the start of %s."),
934 symtab_to_filename_for_display (cursal
.symtab
));
935 print_source_lines (cursal
.symtab
,
936 std::max (get_first_line_listed ()
937 - get_lines_to_list (), 1),
938 get_first_line_listed (), 0);
944 /* Now if there is only one argument, decode it in SAL
946 If there are two arguments, decode them in SAL and SAL_END
947 and clear NO_END; however, if one of the arguments is blank,
948 set DUMMY_BEG or DUMMY_END to record that fact. */
950 if (!have_full_symbols () && !have_partial_symbols ())
951 error (_("No symbol table is loaded. Use the \"file\" command."));
953 std::vector
<symtab_and_line
> sals
;
954 symtab_and_line sal
, sal_end
;
961 event_location_up location
= string_to_event_location (&arg1
,
963 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
975 /* Record whether the BEG arg is all digits. */
977 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
978 linenum_beg
= (p
== arg1
);
980 /* Save the range of the first argument, in case we need to let the
981 user know it was ambiguous. */
982 const char *beg
= arg
;
983 size_t beg_len
= arg1
- beg
;
985 while (*arg1
== ' ' || *arg1
== '\t')
990 if (sals
.size () > 1)
992 ambiguous_line_spec (sals
,
993 _("Specified first line '%.*s' is ambiguous:\n"),
998 while (*arg1
== ' ' || *arg1
== '\t')
1004 /* Save the last argument, in case we need to let the user
1005 know it was ambiguous. */
1006 const char *end_arg
= arg1
;
1008 event_location_up location
1009 = string_to_event_location (&arg1
, current_language
);
1011 std::vector
<symtab_and_line
> sals_end
1013 ? decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1015 : decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1016 NULL
, sal
.symtab
, sal
.line
));
1018 filter_sals (sals_end
);
1019 if (sals_end
.empty ())
1021 if (sals_end
.size () > 1)
1023 ambiguous_line_spec (sals_end
,
1024 _("Specified last line '%s' is ambiguous:\n"),
1028 sal_end
= sals_end
[0];
1033 error (_("Junk at end of line specification."));
1035 if (!no_end
&& !dummy_beg
&& !dummy_end
1036 && sal
.symtab
!= sal_end
.symtab
)
1037 error (_("Specified first and last lines are in different files."));
1038 if (dummy_beg
&& dummy_end
)
1039 error (_("Two empty args do not say what lines to list."));
1041 /* If line was specified by address,
1042 first print exactly which line, and which file.
1044 In this case, sal.symtab == 0 means address is outside of all
1045 known source files, not that user failed to give a filename. */
1048 struct gdbarch
*gdbarch
;
1050 if (sal
.symtab
== 0)
1051 error (_("No source file for address %s."),
1052 paddress (get_current_arch (), sal
.pc
));
1054 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1055 sym
= find_pc_function (sal
.pc
);
1057 printf_filtered ("%s is in %s (%s:%d).\n",
1058 paddress (gdbarch
, sal
.pc
),
1059 SYMBOL_PRINT_NAME (sym
),
1060 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1062 printf_filtered ("%s is at %s:%d.\n",
1063 paddress (gdbarch
, sal
.pc
),
1064 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1067 /* If line was not specified by just a line number, and it does not
1068 imply a symtab, it must be an undebuggable symbol which means no
1071 if (!linenum_beg
&& sal
.symtab
== 0)
1072 error (_("No line number known for %s."), arg
);
1074 /* If this command is repeated with RET,
1075 turn it into the no-arg variant. */
1080 if (dummy_beg
&& sal_end
.symtab
== 0)
1081 error (_("No default source file yet. Do \"help list\"."));
1083 print_source_lines (sal_end
.symtab
,
1084 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1085 sal_end
.line
+ 1, 0);
1086 else if (sal
.symtab
== 0)
1087 error (_("No default source file yet. Do \"help list\"."));
1090 for (int i
= 0; i
< sals
.size (); i
++)
1093 int first_line
= sal
.line
- get_lines_to_list () / 2;
1096 if (sals
.size () > 1)
1098 printf_filtered (_("file: \"%s\", line number: %d\n"),
1099 symtab_to_filename_for_display (sal
.symtab
),
1102 print_source_lines (sal
.symtab
,
1104 first_line
+ get_lines_to_list (),
1109 print_source_lines (sal
.symtab
, sal
.line
,
1111 ? sal
.line
+ get_lines_to_list ()
1112 : sal_end
.line
+ 1),
1116 /* Subroutine of disassemble_command to simplify it.
1117 Perform the disassembly.
1118 NAME is the name of the function if known, or NULL.
1119 [LOW,HIGH) are the range of addresses to disassemble.
1120 MIXED is non-zero to print source with the assembler. */
1123 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1124 CORE_ADDR low
, CORE_ADDR high
,
1125 gdb_disassembly_flags flags
)
1128 if (!tui_is_window_visible (DISASSEM_WIN
))
1131 printf_filtered ("Dump of assembler code ");
1133 printf_filtered ("for function %s:\n", name
);
1135 printf_filtered ("from %s to %s:\n",
1136 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1138 /* Dump the specified range. */
1139 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1141 printf_filtered ("End of assembler dump.\n");
1142 gdb_flush (gdb_stdout
);
1147 tui_show_assembly (gdbarch
, low
);
1152 /* Subroutine of disassemble_command to simplify it.
1153 Print a disassembly of the current function according to FLAGS. */
1156 disassemble_current_function (gdb_disassembly_flags flags
)
1158 struct frame_info
*frame
;
1159 struct gdbarch
*gdbarch
;
1160 CORE_ADDR low
, high
, pc
;
1163 frame
= get_selected_frame (_("No frame selected."));
1164 gdbarch
= get_frame_arch (frame
);
1165 pc
= get_frame_address_in_block (frame
);
1166 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1167 error (_("No function contains program counter for selected frame."));
1169 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1172 /* FIXME: cagney/2004-02-07: This should be an observer. */
1173 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1175 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1177 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1180 /* Dump a specified section of assembly code.
1184 - dump the assembly code for the function of the current pc
1185 disassemble [/mrs] addr
1186 - dump the assembly code for the function at ADDR
1187 disassemble [/mrs] low,high
1188 disassemble [/mrs] low,+length
1189 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1191 A /m modifier will include source code with the assembly in a
1192 "source centric" view. This view lists only the file of the first insn,
1193 even if other source files are involved (e.g., inlined functions), and
1194 the output is in source order, even with optimized code. This view is
1195 considered deprecated as it hasn't been useful in practice.
1197 A /r modifier will include raw instructions in hex with the assembly.
1199 A /s modifier will include source code with the assembly, like /m, with
1200 two important differences:
1201 1) The output is still in pc address order.
1202 2) File names and contents for all relevant source files are displayed. */
1205 disassemble_command (char *arg
, int from_tty
)
1207 struct gdbarch
*gdbarch
= get_current_arch ();
1208 CORE_ADDR low
, high
;
1211 gdb_disassembly_flags flags
;
1223 error (_("Missing modifier."));
1225 while (*p
&& ! isspace (*p
))
1230 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1233 flags
|= DISASSEMBLY_RAW_INSN
;
1236 flags
|= DISASSEMBLY_SOURCE
;
1239 error (_("Invalid disassembly modifier."));
1243 p
= skip_spaces (p
);
1246 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1247 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1248 error (_("Cannot specify both /m and /s."));
1252 flags
|= DISASSEMBLY_OMIT_FNAME
;
1253 disassemble_current_function (flags
);
1257 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1263 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1264 error (_("No function contains specified address."));
1266 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1269 /* FIXME: cagney/2004-02-07: This should be an observer. */
1270 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1272 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1273 flags
|= DISASSEMBLY_OMIT_FNAME
;
1277 /* Two arguments. */
1280 p
= skip_spaces (p
);
1286 high
= parse_and_eval_address (p
);
1291 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1295 make_command (char *arg
, int from_tty
)
1298 shell_escape ("make", from_tty
);
1301 std::string cmd
= std::string ("make ") + arg
;
1303 shell_escape (cmd
.c_str (), from_tty
);
1308 show_user (char *args
, int from_tty
)
1310 struct cmd_list_element
*c
;
1311 extern struct cmd_list_element
*cmdlist
;
1315 const char *comname
= args
;
1317 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1318 if (!cli_user_command_p (c
))
1319 error (_("Not a user command."));
1320 show_user_1 (c
, "", args
, gdb_stdout
);
1324 for (c
= cmdlist
; c
; c
= c
->next
)
1326 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1327 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1332 /* Search through names of commands and documentations for a certain
1333 regular expression. */
1336 apropos_command (char *searchstr
, int from_tty
)
1338 if (searchstr
== NULL
)
1339 error (_("REGEXP string is empty"));
1341 compiled_regex
pattern (searchstr
, REG_ICASE
,
1342 _("Error in regular expression"));
1344 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1347 /* Subroutine of alias_command to simplify it.
1348 Return the first N elements of ARGV flattened back to a string
1349 with a space separating each element.
1350 ARGV may not be NULL.
1351 This does not take care of quoting elements in case they contain spaces
1355 argv_to_string (char **argv
, int n
)
1360 gdb_assert (argv
!= NULL
);
1361 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1363 for (i
= 0; i
< n
; ++i
)
1373 /* Subroutine of alias_command to simplify it.
1374 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1377 valid_command_p (const char *command
)
1379 struct cmd_list_element
*c
;
1381 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1383 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1386 /* This is the slightly tricky part.
1387 lookup_cmd_1 will return a pointer to the last part of COMMAND
1388 to match, leaving COMMAND pointing at the remainder. */
1389 while (*command
== ' ' || *command
== '\t')
1391 return *command
== '\0';
1394 /* Called when "alias" was incorrectly used. */
1397 alias_usage_error (void)
1399 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1402 /* Make an alias of an existing command. */
1405 alias_command (char *args
, int from_tty
)
1407 int i
, alias_argc
, command_argc
;
1408 int abbrev_flag
= 0;
1410 const char *alias
, *command
;
1412 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1413 alias_usage_error ();
1415 equals
= strchr (args
, '=');
1416 std::string
args2 (args
, equals
- args
);
1418 gdb_argv
built_alias_argv (args2
.c_str ());
1419 gdb_argv
command_argv (equals
+ 1);
1421 char **alias_argv
= built_alias_argv
.get ();
1422 while (alias_argv
[0] != NULL
)
1424 if (strcmp (alias_argv
[0], "-a") == 0)
1429 else if (strcmp (alias_argv
[0], "--") == 0)
1438 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1439 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1440 alias_usage_error ();
1442 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1444 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1447 error (_("Invalid command name: %s"), alias_argv
[i
]);
1449 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1453 alias_argc
= countargv (alias_argv
);
1454 command_argc
= command_argv
.count ();
1456 /* COMMAND must exist.
1457 Reconstruct the command to remove any extraneous spaces,
1458 for better error messages. */
1459 std::string
command_string (argv_to_string (command_argv
.get (),
1461 command
= command_string
.c_str ();
1462 if (! valid_command_p (command
))
1463 error (_("Invalid command to alias to: %s"), command
);
1465 /* ALIAS must not exist. */
1466 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1467 alias
= alias_string
.c_str ();
1468 if (valid_command_p (alias
))
1469 error (_("Alias already exists: %s"), alias
);
1471 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1472 Example: alias spe = set print elements
1474 Otherwise ALIAS and COMMAND must have the same number of words,
1475 and every word except the last must match; and the last word of
1476 ALIAS is made an alias of the last word of COMMAND.
1477 Example: alias set print elms = set pr elem
1478 Note that unambiguous abbreviations are allowed. */
1480 if (alias_argc
== 1)
1482 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1483 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1488 const char *alias_prefix
, *command_prefix
;
1489 struct cmd_list_element
*c_alias
, *c_command
;
1491 if (alias_argc
!= command_argc
)
1492 error (_("Mismatched command length between ALIAS and COMMAND."));
1494 /* Create copies of ALIAS and COMMAND without the last word,
1495 and use that to verify the leading elements match. */
1496 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1498 std::string
command_prefix_string (argv_to_string (alias_argv
,
1500 alias_prefix
= alias_prefix_string
.c_str ();
1501 command_prefix
= command_prefix_string
.c_str ();
1503 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1504 /* We've already tried to look up COMMAND. */
1505 gdb_assert (c_command
!= NULL
1506 && c_command
!= (struct cmd_list_element
*) -1);
1507 gdb_assert (c_command
->prefixlist
!= NULL
);
1508 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1509 if (c_alias
!= c_command
)
1510 error (_("ALIAS and COMMAND prefixes do not match."));
1512 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1513 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1514 command_argv
[command_argc
- 1],
1515 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1519 /* Print a list of files and line numbers which a user may choose from
1520 in order to list a function which was specified ambiguously (as
1521 with `list classname::overloadedfuncname', for example). The SALS
1522 array provides the filenames and line numbers. FORMAT is a
1523 printf-style format string used to tell the user what was
1527 ambiguous_line_spec (gdb::array_view
<const symtab_and_line
> sals
,
1528 const char *format
, ...)
1531 va_start (ap
, format
);
1532 vprintf_filtered (format
, ap
);
1535 for (const auto &sal
: sals
)
1536 printf_filtered (_("file: \"%s\", line number: %d\n"),
1537 symtab_to_filename_for_display (sal
.symtab
),
1541 /* Comparison function for filter_sals. Returns a qsort-style
1545 cmp_symtabs (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1547 const char *dira
= SYMTAB_DIRNAME (sala
.symtab
);
1548 const char *dirb
= SYMTAB_DIRNAME (salb
.symtab
);
1556 else if (dirb
== NULL
)
1563 r
= filename_cmp (dira
, dirb
);
1568 r
= filename_cmp (sala
.symtab
->filename
, salb
.symtab
->filename
);
1572 if (sala
.line
< salb
.line
)
1574 return sala
.line
== salb
.line
? 0 : 1;
1577 /* Remove any SALs that do not match the current program space, or
1578 which appear to be "file:line" duplicates. */
1581 filter_sals (std::vector
<symtab_and_line
> &sals
)
1583 /* Remove SALs that do not match. */
1584 auto from
= std::remove_if (sals
.begin (), sals
.end (),
1585 [&] (const symtab_and_line
&sal
)
1586 { return (sal
.pspace
!= current_program_space
|| sal
.symtab
== NULL
); });
1589 std::sort (sals
.begin (), from
,
1590 [] (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1591 { return cmp_symtabs (sala
, salb
) < 0; });
1593 from
= std::unique (sals
.begin (), from
,
1594 [&] (const symtab_and_line
&sala
,
1595 const symtab_and_line
&salb
)
1596 { return cmp_symtabs (sala
, salb
) == 0; });
1598 sals
.erase (from
, sals
.end ());
1602 set_debug (char *arg
, int from_tty
)
1604 printf_unfiltered (_("\"set debug\" must be followed by "
1605 "the name of a debug subcommand.\n"));
1606 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1610 show_debug (char *args
, int from_tty
)
1612 cmd_show_list (showdebuglist
, from_tty
, "");
1616 init_cmd_lists (void)
1618 max_user_call_depth
= 1024;
1622 show_info_verbose (struct ui_file
*file
, int from_tty
,
1623 struct cmd_list_element
*c
,
1627 fprintf_filtered (file
,
1628 _("Verbose printing of informational messages is %s.\n"),
1631 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1635 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1636 struct cmd_list_element
*c
, const char *value
)
1638 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1643 show_remote_debug (struct ui_file
*file
, int from_tty
,
1644 struct cmd_list_element
*c
, const char *value
)
1646 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1651 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1652 struct cmd_list_element
*c
, const char *value
)
1654 fprintf_filtered (file
,
1655 _("Timeout limit to wait for target to respond is %s.\n"),
1660 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1661 struct cmd_list_element
*c
, const char *value
)
1663 fprintf_filtered (file
,
1664 _("The max call depth for user-defined commands is %s.\n"),
1669 _initialize_cli_cmds (void)
1671 struct cmd_list_element
*c
;
1673 /* Define the classes of commands.
1674 They will appear in the help list in alphabetical order. */
1676 add_cmd ("internals", class_maintenance
, NULL
, _("\
1677 Maintenance commands.\n\
1678 Some gdb commands are provided just for use by gdb maintainers.\n\
1679 These commands are subject to frequent change, and may not be as\n\
1680 well documented as user commands."),
1682 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1683 add_cmd ("aliases", class_alias
, NULL
,
1684 _("Aliases of other commands."), &cmdlist
);
1685 add_cmd ("user-defined", class_user
, NULL
, _("\
1686 User-defined commands.\n\
1687 The commands in this class are those defined by the user.\n\
1688 Use the \"define\" command to define a command."), &cmdlist
);
1689 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1691 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1692 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1694 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1695 _("Making program stop at certain points."), &cmdlist
);
1696 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1697 add_cmd ("stack", class_stack
, NULL
, _("\
1698 Examining the stack.\n\
1699 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1700 counting from zero for the innermost (currently executing) frame.\n\n\
1701 At any time gdb identifies one frame as the \"selected\" frame.\n\
1702 Variable lookups are done with respect to the selected frame.\n\
1703 When the program being debugged stops, gdb selects the innermost frame.\n\
1704 The commands below can be used to select other frames by number or address."),
1706 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1708 /* Define general commands. */
1710 add_com ("pwd", class_files
, pwd_command
, _("\
1711 Print working directory. This is used for your program as well."));
1713 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1714 Set working directory to DIR for debugger and program being debugged.\n\
1715 The change does not take effect for the program being debugged\n\
1716 until the next time it is started."), &cmdlist
);
1717 set_cmd_completer (c
, filename_completer
);
1719 add_com ("echo", class_support
, echo_command
, _("\
1720 Print a constant string. Give string as argument.\n\
1721 C escape sequences may be used in the argument.\n\
1722 No newline is added at the end of the argument;\n\
1723 use \"\\n\" if you want a newline to be printed.\n\
1724 Since leading and trailing whitespace are ignored in command arguments,\n\
1725 if you want to print some you must use \"\\\" before leading whitespace\n\
1726 to be printed or after trailing whitespace."));
1728 add_setshow_enum_cmd ("script-extension", class_support
,
1729 script_ext_enums
, &script_ext_mode
, _("\
1730 Set mode for script filename extension recognition."), _("\
1731 Show mode for script filename extension recognition."), _("\
1732 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1733 soft == evaluate script according to filename extension, fallback to GDB script"
1735 strict == evaluate script according to filename extension, error if not supported"
1738 show_script_ext_mode
,
1739 &setlist
, &showlist
);
1741 add_com ("quit", class_support
, quit_command
, _("\
1743 Usage: quit [EXPR]\n\
1744 The optional expression EXPR, if present, is evaluated and the result\n\
1745 used as GDB's exit code. The default is zero."));
1746 c
= add_com ("help", class_support
, help_command
,
1747 _("Print list of commands."));
1748 set_cmd_completer (c
, command_completer
);
1749 add_com_alias ("q", "quit", class_support
, 1);
1750 add_com_alias ("h", "help", class_support
, 1);
1752 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1753 Set verbosity."), _("\
1754 Show verbosity."), NULL
,
1757 &setlist
, &showlist
);
1759 add_prefix_cmd ("history", class_support
, set_history
,
1760 _("Generic command for setting command history parameters."),
1761 &sethistlist
, "set history ", 0, &setlist
);
1762 add_prefix_cmd ("history", class_support
, show_history
,
1763 _("Generic command for showing command history parameters."),
1764 &showhistlist
, "show history ", 0, &showlist
);
1766 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1767 Set history expansion on command input."), _("\
1768 Show history expansion on command input."), _("\
1769 Without an argument, history expansion is enabled."),
1771 show_history_expansion_p
,
1772 &sethistlist
, &showhistlist
);
1774 add_prefix_cmd ("info", class_info
, info_command
, _("\
1775 Generic command for showing things about the program being debugged."),
1776 &infolist
, "info ", 0, &cmdlist
);
1777 add_com_alias ("i", "info", class_info
, 1);
1778 add_com_alias ("inf", "info", class_info
, 1);
1780 add_com ("complete", class_obscure
, complete_command
,
1781 _("List the completions for the rest of the line as a command."));
1783 add_prefix_cmd ("show", class_info
, show_command
, _("\
1784 Generic command for showing things about the debugger."),
1785 &showlist
, "show ", 0, &cmdlist
);
1786 /* Another way to get at the same thing. */
1787 add_info ("set", show_command
, _("Show all GDB settings."));
1789 add_cmd ("commands", no_set_class
, show_commands
, _("\
1790 Show the history of commands you typed.\n\
1791 You can supply a command number to start with, or a `+' to start after\n\
1792 the previous command number shown."),
1795 add_cmd ("version", no_set_class
, show_version
,
1796 _("Show what version of GDB this is."), &showlist
);
1798 add_cmd ("configuration", no_set_class
, show_configuration
,
1799 _("Show how GDB was configured at build time."), &showlist
);
1801 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1802 Set debugging of remote protocol."), _("\
1803 Show debugging of remote protocol."), _("\
1804 When enabled, each packet sent or received with the remote target\n\
1808 &setdebuglist
, &showdebuglist
);
1810 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1811 &remote_timeout
, _("\
1812 Set timeout limit to wait for target to respond."), _("\
1813 Show timeout limit to wait for target to respond."), _("\
1814 This value is used to set the time limit for gdb to wait for a response\n\
1817 show_remote_timeout
,
1818 &setlist
, &showlist
);
1820 add_prefix_cmd ("debug", no_class
, set_debug
,
1821 _("Generic command for setting gdb debugging flags"),
1822 &setdebuglist
, "set debug ", 0, &setlist
);
1824 add_prefix_cmd ("debug", no_class
, show_debug
,
1825 _("Generic command for showing gdb debugging flags"),
1826 &showdebuglist
, "show debug ", 0, &showlist
);
1828 c
= add_com ("shell", class_support
, shell_command
, _("\
1829 Execute the rest of the line as a shell command.\n\
1830 With no arguments, run an inferior shell."));
1831 set_cmd_completer (c
, filename_completer
);
1833 c
= add_com ("edit", class_files
, edit_command
, _("\
1834 Edit specified file or function.\n\
1835 With no argument, edits file containing most recent line listed.\n\
1836 Editing targets can be specified in these ways:\n\
1837 FILE:LINENUM, to edit at that line in that file,\n\
1838 FUNCTION, to edit at the beginning of that function,\n\
1839 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1840 *ADDRESS, to edit at the line containing that address.\n\
1841 Uses EDITOR environment variable contents as editor (or ex as default)."));
1843 c
->completer
= location_completer
;
1845 add_com ("list", class_files
, list_command
, _("\
1846 List specified function or line.\n\
1847 With no argument, lists ten more lines after or around previous listing.\n\
1848 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1849 One argument specifies a line, and ten lines are listed around that line.\n\
1850 Two arguments with comma between specify starting and ending lines to list.\n\
1851 Lines can be specified in these ways:\n\
1852 LINENUM, to list around that line in current file,\n\
1853 FILE:LINENUM, to list around that line in that file,\n\
1854 FUNCTION, to list around beginning of that function,\n\
1855 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1856 *ADDRESS, to list around the line containing that address.\n\
1857 With two args, if one is empty, it stands for ten lines away from\n\
1860 By default, when a single location is given, display ten lines.\n\
1861 This can be changed using \"set listsize\", and the current value\n\
1862 can be shown using \"show listsize\"."));
1864 add_com_alias ("l", "list", class_files
, 1);
1867 add_com_alias ("file", "list", class_files
, 1);
1869 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1870 Disassemble a specified section of memory.\n\
1871 Default is the function surrounding the pc of the selected frame.\n\
1873 With a /m modifier, source lines are included (if available).\n\
1874 This view is \"source centric\": the output is in source line order,\n\
1875 regardless of any optimization that is present. Only the main source file\n\
1876 is displayed, not those of, e.g., any inlined functions.\n\
1877 This modifier hasn't proved useful in practice and is deprecated\n\
1880 With a /s modifier, source lines are included (if available).\n\
1881 This differs from /m in two important respects:\n\
1882 - the output is still in pc address order, and\n\
1883 - file names and contents for all relevant source files are displayed.\n\
1885 With a /r modifier, raw instructions in hex are included.\n\
1887 With a single argument, the function surrounding that address is dumped.\n\
1888 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1889 in the form of \"start,end\", or \"start,+length\".\n\
1891 Note that the address is interpreted as an expression, not as a location\n\
1892 like in the \"break\" command.\n\
1893 So, for example, if you want to disassemble function bar in file foo.c\n\
1894 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1895 set_cmd_completer (c
, location_completer
);
1897 add_com_alias ("!", "shell", class_support
, 0);
1899 c
= add_com ("make", class_support
, make_command
, _("\
1900 Run the ``make'' program using the rest of the line as arguments."));
1901 set_cmd_completer (c
, filename_completer
);
1902 add_cmd ("user", no_class
, show_user
, _("\
1903 Show definitions of non-python/scheme user defined commands.\n\
1904 Argument is the name of the user defined command.\n\
1905 With no argument, show definitions of all user defined commands."), &showlist
);
1906 add_com ("apropos", class_support
, apropos_command
,
1907 _("Search for commands matching a REGEXP"));
1909 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1910 &max_user_call_depth
, _("\
1911 Set the max call depth for non-python/scheme user-defined commands."), _("\
1912 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1914 show_max_user_call_depth
,
1915 &setlist
, &showlist
);
1917 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1918 Set tracing of GDB CLI commands."), _("\
1919 Show state of GDB CLI command tracing."), _("\
1920 When 'on', each command is displayed as it is executed."),
1923 &setlist
, &showlist
);
1925 c
= add_com ("alias", class_support
, alias_command
, _("\
1926 Define a new command that is an alias of an existing command.\n\
1927 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1928 ALIAS is the name of the alias command to create.\n\
1929 COMMAND is the command being aliased to.\n\
1930 If \"-a\" is specified, the command is an abbreviation,\n\
1931 and will not appear in help command list output.\n\
1934 Make \"spe\" an alias of \"set print elements\":\n\
1935 alias spe = set print elements\n\
1936 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1937 alias -a set print elms = set print elements"));
1941 init_cli_cmds (void)
1943 struct cmd_list_element
*c
;
1944 char *source_help_text
;
1946 source_help_text
= xstrprintf (_("\
1947 Read commands from a file named FILE.\n\
1949 Usage: source [-s] [-v] FILE\n\
1950 -s: search for the script in the source search path,\n\
1951 even if FILE contains directories.\n\
1952 -v: each command in FILE is echoed as it is executed.\n\
1954 Note that the file \"%s\" is read automatically in this way\n\
1955 when GDB is started."), gdbinit
);
1956 c
= add_cmd ("source", class_support
, source_command
,
1957 source_help_text
, &cmdlist
);
1958 set_cmd_completer (c
, filename_completer
);