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
)
889 struct symtab_and_line sal
= { 0 };
890 struct symtab_and_line sal_end
= { 0 };
891 struct symtab_and_line cursal
= { 0 };
900 /* Pull in the current default source line if necessary. */
901 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
903 set_default_source_symtab_and_line ();
904 cursal
= get_current_source_symtab_and_line ();
906 /* If this is the first "list" since we've set the current
907 source line, center the listing around that line. */
908 if (get_first_line_listed () == 0)
912 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
914 /* A small special case --- if listing backwards, and we
915 should list only one line, list the preceding line,
916 instead of the exact line we've just shown after e.g.,
917 stopping for a breakpoint. */
918 if (arg
!= NULL
&& arg
[0] == '-'
919 && get_lines_to_list () == 1 && first
> 1)
922 print_source_lines (cursal
.symtab
, first
,
923 first
+ get_lines_to_list (), 0);
926 /* "l" or "l +" lists next ten lines. */
927 else if (arg
== NULL
|| arg
[0] == '+')
928 print_source_lines (cursal
.symtab
, cursal
.line
,
929 cursal
.line
+ get_lines_to_list (), 0);
931 /* "l -" lists previous ten lines, the ones before the ten just
933 else if (arg
[0] == '-')
935 if (get_first_line_listed () == 1)
936 error (_("Already at the start of %s."),
937 symtab_to_filename_for_display (cursal
.symtab
));
938 print_source_lines (cursal
.symtab
,
939 std::max (get_first_line_listed ()
940 - get_lines_to_list (), 1),
941 get_first_line_listed (), 0);
947 /* Now if there is only one argument, decode it in SAL
949 If there are two arguments, decode them in SAL and SAL_END
950 and clear NO_END; however, if one of the arguments is blank,
951 set DUMMY_BEG or DUMMY_END to record that fact. */
953 if (!have_full_symbols () && !have_partial_symbols ())
954 error (_("No symbol table is loaded. Use the \"file\" command."));
956 std::vector
<symtab_and_line
> sals
;
963 event_location_up location
= string_to_event_location (&arg1
,
965 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
977 /* Record whether the BEG arg is all digits. */
979 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
980 linenum_beg
= (p
== arg1
);
982 /* Save the range of the first argument, in case we need to let the
983 user know it was ambiguous. */
984 const char *beg
= arg
;
985 size_t beg_len
= arg1
- beg
;
987 while (*arg1
== ' ' || *arg1
== '\t')
992 if (sals
.size () > 1)
994 ambiguous_line_spec (sals
,
995 _("Specified first line '%.*s' is ambiguous:\n"),
1000 while (*arg1
== ' ' || *arg1
== '\t')
1006 /* Save the last argument, in case we need to let the user
1007 know it was ambiguous. */
1008 const char *end_arg
= arg1
;
1010 event_location_up location
1011 = string_to_event_location (&arg1
, current_language
);
1013 std::vector
<symtab_and_line
> sals_end
1015 ? decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1017 : decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1018 NULL
, sal
.symtab
, sal
.line
));
1020 filter_sals (sals_end
);
1021 if (sals_end
.empty ())
1023 if (sals_end
.size () > 1)
1025 ambiguous_line_spec (sals_end
,
1026 _("Specified last line '%s' is ambiguous:\n"),
1030 sal_end
= sals_end
[0];
1035 error (_("Junk at end of line specification."));
1037 if (!no_end
&& !dummy_beg
&& !dummy_end
1038 && sal
.symtab
!= sal_end
.symtab
)
1039 error (_("Specified first and last lines are in different files."));
1040 if (dummy_beg
&& dummy_end
)
1041 error (_("Two empty args do not say what lines to list."));
1043 /* If line was specified by address,
1044 first print exactly which line, and which file.
1046 In this case, sal.symtab == 0 means address is outside of all
1047 known source files, not that user failed to give a filename. */
1050 struct gdbarch
*gdbarch
;
1052 if (sal
.symtab
== 0)
1053 error (_("No source file for address %s."),
1054 paddress (get_current_arch (), sal
.pc
));
1056 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1057 sym
= find_pc_function (sal
.pc
);
1059 printf_filtered ("%s is in %s (%s:%d).\n",
1060 paddress (gdbarch
, sal
.pc
),
1061 SYMBOL_PRINT_NAME (sym
),
1062 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1064 printf_filtered ("%s is at %s:%d.\n",
1065 paddress (gdbarch
, sal
.pc
),
1066 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1069 /* If line was not specified by just a line number, and it does not
1070 imply a symtab, it must be an undebuggable symbol which means no
1073 if (!linenum_beg
&& sal
.symtab
== 0)
1074 error (_("No line number known for %s."), arg
);
1076 /* If this command is repeated with RET,
1077 turn it into the no-arg variant. */
1082 if (dummy_beg
&& sal_end
.symtab
== 0)
1083 error (_("No default source file yet. Do \"help list\"."));
1085 print_source_lines (sal_end
.symtab
,
1086 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1087 sal_end
.line
+ 1, 0);
1088 else if (sal
.symtab
== 0)
1089 error (_("No default source file yet. Do \"help list\"."));
1092 for (int i
= 0; i
< sals
.size (); i
++)
1095 int first_line
= sal
.line
- get_lines_to_list () / 2;
1098 if (sals
.size () > 1)
1100 printf_filtered (_("file: \"%s\", line number: %d\n"),
1101 symtab_to_filename_for_display (sal
.symtab
),
1104 print_source_lines (sal
.symtab
,
1106 first_line
+ get_lines_to_list (),
1111 print_source_lines (sal
.symtab
, sal
.line
,
1113 ? sal
.line
+ get_lines_to_list ()
1114 : sal_end
.line
+ 1),
1118 /* Subroutine of disassemble_command to simplify it.
1119 Perform the disassembly.
1120 NAME is the name of the function if known, or NULL.
1121 [LOW,HIGH) are the range of addresses to disassemble.
1122 MIXED is non-zero to print source with the assembler. */
1125 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1126 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1129 if (!tui_is_window_visible (DISASSEM_WIN
))
1132 printf_filtered ("Dump of assembler code ");
1134 printf_filtered ("for function %s:\n", name
);
1136 printf_filtered ("from %s to %s:\n",
1137 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1139 /* Dump the specified range. */
1140 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1142 printf_filtered ("End of assembler dump.\n");
1143 gdb_flush (gdb_stdout
);
1148 tui_show_assembly (gdbarch
, low
);
1153 /* Subroutine of disassemble_command to simplify it.
1154 Print a disassembly of the current function according to FLAGS. */
1157 disassemble_current_function (int flags
)
1159 struct frame_info
*frame
;
1160 struct gdbarch
*gdbarch
;
1161 CORE_ADDR low
, high
, pc
;
1164 frame
= get_selected_frame (_("No frame selected."));
1165 gdbarch
= get_frame_arch (frame
);
1166 pc
= get_frame_address_in_block (frame
);
1167 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1168 error (_("No function contains program counter for selected frame."));
1170 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1173 /* FIXME: cagney/2004-02-07: This should be an observer. */
1174 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1176 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1178 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1181 /* Dump a specified section of assembly code.
1185 - dump the assembly code for the function of the current pc
1186 disassemble [/mrs] addr
1187 - dump the assembly code for the function at ADDR
1188 disassemble [/mrs] low,high
1189 disassemble [/mrs] low,+length
1190 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1192 A /m modifier will include source code with the assembly in a
1193 "source centric" view. This view lists only the file of the first insn,
1194 even if other source files are involved (e.g., inlined functions), and
1195 the output is in source order, even with optimized code. This view is
1196 considered deprecated as it hasn't been useful in practice.
1198 A /r modifier will include raw instructions in hex with the assembly.
1200 A /s modifier will include source code with the assembly, like /m, with
1201 two important differences:
1202 1) The output is still in pc address order.
1203 2) File names and contents for all relevant source files are displayed. */
1206 disassemble_command (char *arg
, int from_tty
)
1208 struct gdbarch
*gdbarch
= get_current_arch ();
1209 CORE_ADDR low
, high
;
1224 error (_("Missing modifier."));
1226 while (*p
&& ! isspace (*p
))
1231 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1234 flags
|= DISASSEMBLY_RAW_INSN
;
1237 flags
|= DISASSEMBLY_SOURCE
;
1240 error (_("Invalid disassembly modifier."));
1244 p
= skip_spaces_const (p
);
1247 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1248 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1249 error (_("Cannot specify both /m and /s."));
1253 flags
|= DISASSEMBLY_OMIT_FNAME
;
1254 disassemble_current_function (flags
);
1258 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1264 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1265 error (_("No function contains specified address."));
1267 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1270 /* FIXME: cagney/2004-02-07: This should be an observer. */
1271 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1273 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1274 flags
|= DISASSEMBLY_OMIT_FNAME
;
1278 /* Two arguments. */
1281 p
= skip_spaces_const (p
);
1287 high
= parse_and_eval_address (p
);
1292 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1296 make_command (char *arg
, int from_tty
)
1299 shell_escape ("make", from_tty
);
1302 std::string cmd
= std::string ("make ") + arg
;
1304 shell_escape (cmd
.c_str (), from_tty
);
1309 show_user (char *args
, int from_tty
)
1311 struct cmd_list_element
*c
;
1312 extern struct cmd_list_element
*cmdlist
;
1316 const char *comname
= args
;
1318 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1319 if (!cli_user_command_p (c
))
1320 error (_("Not a user command."));
1321 show_user_1 (c
, "", args
, gdb_stdout
);
1325 for (c
= cmdlist
; c
; c
= c
->next
)
1327 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1328 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1333 /* Search through names of commands and documentations for a certain
1334 regular expression. */
1337 apropos_command (char *searchstr
, int from_tty
)
1339 if (searchstr
== NULL
)
1340 error (_("REGEXP string is empty"));
1342 compiled_regex
pattern (searchstr
, REG_ICASE
,
1343 _("Error in regular expression"));
1345 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1348 /* Subroutine of alias_command to simplify it.
1349 Return the first N elements of ARGV flattened back to a string
1350 with a space separating each element.
1351 ARGV may not be NULL.
1352 This does not take care of quoting elements in case they contain spaces
1356 argv_to_string (char **argv
, int n
)
1361 gdb_assert (argv
!= NULL
);
1362 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1364 for (i
= 0; i
< n
; ++i
)
1374 /* Subroutine of alias_command to simplify it.
1375 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1378 valid_command_p (const char *command
)
1380 struct cmd_list_element
*c
;
1382 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1384 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1387 /* This is the slightly tricky part.
1388 lookup_cmd_1 will return a pointer to the last part of COMMAND
1389 to match, leaving COMMAND pointing at the remainder. */
1390 while (*command
== ' ' || *command
== '\t')
1392 return *command
== '\0';
1395 /* Called when "alias" was incorrectly used. */
1398 alias_usage_error (void)
1400 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1403 /* Make an alias of an existing command. */
1406 alias_command (char *args
, int from_tty
)
1408 int i
, alias_argc
, command_argc
;
1409 int abbrev_flag
= 0;
1411 const char *alias
, *command
;
1413 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1414 alias_usage_error ();
1416 equals
= strchr (args
, '=');
1417 std::string
args2 (args
, equals
- args
);
1419 gdb_argv
built_alias_argv (args2
.c_str ());
1420 gdb_argv
command_argv (equals
+ 1);
1422 char **alias_argv
= built_alias_argv
.get ();
1423 while (alias_argv
[0] != NULL
)
1425 if (strcmp (alias_argv
[0], "-a") == 0)
1430 else if (strcmp (alias_argv
[0], "--") == 0)
1439 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1440 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1441 alias_usage_error ();
1443 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1445 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1448 error (_("Invalid command name: %s"), alias_argv
[i
]);
1450 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1454 alias_argc
= countargv (alias_argv
);
1455 command_argc
= command_argv
.count ();
1457 /* COMMAND must exist.
1458 Reconstruct the command to remove any extraneous spaces,
1459 for better error messages. */
1460 std::string
command_string (argv_to_string (command_argv
.get (),
1462 command
= command_string
.c_str ();
1463 if (! valid_command_p (command
))
1464 error (_("Invalid command to alias to: %s"), command
);
1466 /* ALIAS must not exist. */
1467 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1468 alias
= alias_string
.c_str ();
1469 if (valid_command_p (alias
))
1470 error (_("Alias already exists: %s"), alias
);
1472 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1473 Example: alias spe = set print elements
1475 Otherwise ALIAS and COMMAND must have the same number of words,
1476 and every word except the last must match; and the last word of
1477 ALIAS is made an alias of the last word of COMMAND.
1478 Example: alias set print elms = set pr elem
1479 Note that unambiguous abbreviations are allowed. */
1481 if (alias_argc
== 1)
1483 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1484 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1489 const char *alias_prefix
, *command_prefix
;
1490 struct cmd_list_element
*c_alias
, *c_command
;
1492 if (alias_argc
!= command_argc
)
1493 error (_("Mismatched command length between ALIAS and COMMAND."));
1495 /* Create copies of ALIAS and COMMAND without the last word,
1496 and use that to verify the leading elements match. */
1497 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1499 std::string
command_prefix_string (argv_to_string (alias_argv
,
1501 alias_prefix
= alias_prefix_string
.c_str ();
1502 command_prefix
= command_prefix_string
.c_str ();
1504 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1505 /* We've already tried to look up COMMAND. */
1506 gdb_assert (c_command
!= NULL
1507 && c_command
!= (struct cmd_list_element
*) -1);
1508 gdb_assert (c_command
->prefixlist
!= NULL
);
1509 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1510 if (c_alias
!= c_command
)
1511 error (_("ALIAS and COMMAND prefixes do not match."));
1513 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1514 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1515 command_argv
[command_argc
- 1],
1516 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1520 /* Print a list of files and line numbers which a user may choose from
1521 in order to list a function which was specified ambiguously (as
1522 with `list classname::overloadedfuncname', for example). The SALS
1523 array provides the filenames and line numbers. FORMAT is a
1524 printf-style format string used to tell the user what was
1528 ambiguous_line_spec (gdb::array_view
<const symtab_and_line
> sals
,
1529 const char *format
, ...)
1532 va_start (ap
, format
);
1533 vprintf_filtered (format
, ap
);
1536 for (const auto &sal
: sals
)
1537 printf_filtered (_("file: \"%s\", line number: %d\n"),
1538 symtab_to_filename_for_display (sal
.symtab
),
1542 /* Comparison function for filter_sals. Returns a qsort-style
1546 cmp_symtabs (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1548 const char *dira
= SYMTAB_DIRNAME (sala
.symtab
);
1549 const char *dirb
= SYMTAB_DIRNAME (salb
.symtab
);
1557 else if (dirb
== NULL
)
1564 r
= filename_cmp (dira
, dirb
);
1569 r
= filename_cmp (sala
.symtab
->filename
, salb
.symtab
->filename
);
1573 if (sala
.line
< salb
.line
)
1575 return sala
.line
== salb
.line
? 0 : 1;
1578 /* Remove any SALs that do not match the current program space, or
1579 which appear to be "file:line" duplicates. */
1582 filter_sals (std::vector
<symtab_and_line
> &sals
)
1584 /* Remove SALs that do not match. */
1585 auto from
= std::remove_if (sals
.begin (), sals
.end (),
1586 [&] (const symtab_and_line
&sal
)
1587 { return (sal
.pspace
!= current_program_space
|| sal
.symtab
== NULL
); });
1590 std::sort (sals
.begin (), from
,
1591 [] (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1592 { return cmp_symtabs (sala
, salb
) < 0; });
1594 from
= std::unique (sals
.begin (), from
,
1595 [&] (const symtab_and_line
&sala
,
1596 const symtab_and_line
&salb
)
1597 { return cmp_symtabs (sala
, salb
) == 0; });
1599 sals
.erase (from
, sals
.end ());
1603 set_debug (char *arg
, int from_tty
)
1605 printf_unfiltered (_("\"set debug\" must be followed by "
1606 "the name of a debug subcommand.\n"));
1607 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1611 show_debug (char *args
, int from_tty
)
1613 cmd_show_list (showdebuglist
, from_tty
, "");
1617 init_cmd_lists (void)
1619 max_user_call_depth
= 1024;
1623 show_info_verbose (struct ui_file
*file
, int from_tty
,
1624 struct cmd_list_element
*c
,
1628 fprintf_filtered (file
,
1629 _("Verbose printing of informational messages is %s.\n"),
1632 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1636 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1637 struct cmd_list_element
*c
, const char *value
)
1639 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1644 show_remote_debug (struct ui_file
*file
, int from_tty
,
1645 struct cmd_list_element
*c
, const char *value
)
1647 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1652 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1653 struct cmd_list_element
*c
, const char *value
)
1655 fprintf_filtered (file
,
1656 _("Timeout limit to wait for target to respond is %s.\n"),
1661 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1662 struct cmd_list_element
*c
, const char *value
)
1664 fprintf_filtered (file
,
1665 _("The max call depth for user-defined commands is %s.\n"),
1671 initialize_file_ftype _initialize_cli_cmds
;
1674 _initialize_cli_cmds (void)
1676 struct cmd_list_element
*c
;
1678 /* Define the classes of commands.
1679 They will appear in the help list in alphabetical order. */
1681 add_cmd ("internals", class_maintenance
, NULL
, _("\
1682 Maintenance commands.\n\
1683 Some gdb commands are provided just for use by gdb maintainers.\n\
1684 These commands are subject to frequent change, and may not be as\n\
1685 well documented as user commands."),
1687 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1688 add_cmd ("aliases", class_alias
, NULL
,
1689 _("Aliases of other commands."), &cmdlist
);
1690 add_cmd ("user-defined", class_user
, NULL
, _("\
1691 User-defined commands.\n\
1692 The commands in this class are those defined by the user.\n\
1693 Use the \"define\" command to define a command."), &cmdlist
);
1694 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1696 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1697 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1699 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1700 _("Making program stop at certain points."), &cmdlist
);
1701 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1702 add_cmd ("stack", class_stack
, NULL
, _("\
1703 Examining the stack.\n\
1704 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1705 counting from zero for the innermost (currently executing) frame.\n\n\
1706 At any time gdb identifies one frame as the \"selected\" frame.\n\
1707 Variable lookups are done with respect to the selected frame.\n\
1708 When the program being debugged stops, gdb selects the innermost frame.\n\
1709 The commands below can be used to select other frames by number or address."),
1711 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1713 /* Define general commands. */
1715 add_com ("pwd", class_files
, pwd_command
, _("\
1716 Print working directory. This is used for your program as well."));
1718 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1719 Set working directory to DIR for debugger and program being debugged.\n\
1720 The change does not take effect for the program being debugged\n\
1721 until the next time it is started."), &cmdlist
);
1722 set_cmd_completer (c
, filename_completer
);
1724 add_com ("echo", class_support
, echo_command
, _("\
1725 Print a constant string. Give string as argument.\n\
1726 C escape sequences may be used in the argument.\n\
1727 No newline is added at the end of the argument;\n\
1728 use \"\\n\" if you want a newline to be printed.\n\
1729 Since leading and trailing whitespace are ignored in command arguments,\n\
1730 if you want to print some you must use \"\\\" before leading whitespace\n\
1731 to be printed or after trailing whitespace."));
1733 add_setshow_enum_cmd ("script-extension", class_support
,
1734 script_ext_enums
, &script_ext_mode
, _("\
1735 Set mode for script filename extension recognition."), _("\
1736 Show mode for script filename extension recognition."), _("\
1737 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1738 soft == evaluate script according to filename extension, fallback to GDB script"
1740 strict == evaluate script according to filename extension, error if not supported"
1743 show_script_ext_mode
,
1744 &setlist
, &showlist
);
1746 add_com ("quit", class_support
, quit_command
, _("\
1748 Usage: quit [EXPR]\n\
1749 The optional expression EXPR, if present, is evaluated and the result\n\
1750 used as GDB's exit code. The default is zero."));
1751 c
= add_com ("help", class_support
, help_command
,
1752 _("Print list of commands."));
1753 set_cmd_completer (c
, command_completer
);
1754 add_com_alias ("q", "quit", class_support
, 1);
1755 add_com_alias ("h", "help", class_support
, 1);
1757 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1758 Set verbosity."), _("\
1759 Show verbosity."), NULL
,
1762 &setlist
, &showlist
);
1764 add_prefix_cmd ("history", class_support
, set_history
,
1765 _("Generic command for setting command history parameters."),
1766 &sethistlist
, "set history ", 0, &setlist
);
1767 add_prefix_cmd ("history", class_support
, show_history
,
1768 _("Generic command for showing command history parameters."),
1769 &showhistlist
, "show history ", 0, &showlist
);
1771 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1772 Set history expansion on command input."), _("\
1773 Show history expansion on command input."), _("\
1774 Without an argument, history expansion is enabled."),
1776 show_history_expansion_p
,
1777 &sethistlist
, &showhistlist
);
1779 add_prefix_cmd ("info", class_info
, info_command
, _("\
1780 Generic command for showing things about the program being debugged."),
1781 &infolist
, "info ", 0, &cmdlist
);
1782 add_com_alias ("i", "info", class_info
, 1);
1783 add_com_alias ("inf", "info", class_info
, 1);
1785 add_com ("complete", class_obscure
, complete_command
,
1786 _("List the completions for the rest of the line as a command."));
1788 add_prefix_cmd ("show", class_info
, show_command
, _("\
1789 Generic command for showing things about the debugger."),
1790 &showlist
, "show ", 0, &cmdlist
);
1791 /* Another way to get at the same thing. */
1792 add_info ("set", show_command
, _("Show all GDB settings."));
1794 add_cmd ("commands", no_set_class
, show_commands
, _("\
1795 Show the history of commands you typed.\n\
1796 You can supply a command number to start with, or a `+' to start after\n\
1797 the previous command number shown."),
1800 add_cmd ("version", no_set_class
, show_version
,
1801 _("Show what version of GDB this is."), &showlist
);
1803 add_cmd ("configuration", no_set_class
, show_configuration
,
1804 _("Show how GDB was configured at build time."), &showlist
);
1806 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1807 Set debugging of remote protocol."), _("\
1808 Show debugging of remote protocol."), _("\
1809 When enabled, each packet sent or received with the remote target\n\
1813 &setdebuglist
, &showdebuglist
);
1815 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1816 &remote_timeout
, _("\
1817 Set timeout limit to wait for target to respond."), _("\
1818 Show timeout limit to wait for target to respond."), _("\
1819 This value is used to set the time limit for gdb to wait for a response\n\
1822 show_remote_timeout
,
1823 &setlist
, &showlist
);
1825 add_prefix_cmd ("debug", no_class
, set_debug
,
1826 _("Generic command for setting gdb debugging flags"),
1827 &setdebuglist
, "set debug ", 0, &setlist
);
1829 add_prefix_cmd ("debug", no_class
, show_debug
,
1830 _("Generic command for showing gdb debugging flags"),
1831 &showdebuglist
, "show debug ", 0, &showlist
);
1833 c
= add_com ("shell", class_support
, shell_command
, _("\
1834 Execute the rest of the line as a shell command.\n\
1835 With no arguments, run an inferior shell."));
1836 set_cmd_completer (c
, filename_completer
);
1838 c
= add_com ("edit", class_files
, edit_command
, _("\
1839 Edit specified file or function.\n\
1840 With no argument, edits file containing most recent line listed.\n\
1841 Editing targets can be specified in these ways:\n\
1842 FILE:LINENUM, to edit at that line in that file,\n\
1843 FUNCTION, to edit at the beginning of that function,\n\
1844 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1845 *ADDRESS, to edit at the line containing that address.\n\
1846 Uses EDITOR environment variable contents as editor (or ex as default)."));
1848 c
->completer
= location_completer
;
1850 add_com ("list", class_files
, list_command
, _("\
1851 List specified function or line.\n\
1852 With no argument, lists ten more lines after or around previous listing.\n\
1853 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1854 One argument specifies a line, and ten lines are listed around that line.\n\
1855 Two arguments with comma between specify starting and ending lines to list.\n\
1856 Lines can be specified in these ways:\n\
1857 LINENUM, to list around that line in current file,\n\
1858 FILE:LINENUM, to list around that line in that file,\n\
1859 FUNCTION, to list around beginning of that function,\n\
1860 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1861 *ADDRESS, to list around the line containing that address.\n\
1862 With two args, if one is empty, it stands for ten lines away from\n\
1865 By default, when a single location is given, display ten lines.\n\
1866 This can be changed using \"set listsize\", and the current value\n\
1867 can be shown using \"show listsize\"."));
1869 add_com_alias ("l", "list", class_files
, 1);
1872 add_com_alias ("file", "list", class_files
, 1);
1874 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1875 Disassemble a specified section of memory.\n\
1876 Default is the function surrounding the pc of the selected frame.\n\
1878 With a /m modifier, source lines are included (if available).\n\
1879 This view is \"source centric\": the output is in source line order,\n\
1880 regardless of any optimization that is present. Only the main source file\n\
1881 is displayed, not those of, e.g., any inlined functions.\n\
1882 This modifier hasn't proved useful in practice and is deprecated\n\
1885 With a /s modifier, source lines are included (if available).\n\
1886 This differs from /m in two important respects:\n\
1887 - the output is still in pc address order, and\n\
1888 - file names and contents for all relevant source files are displayed.\n\
1890 With a /r modifier, raw instructions in hex are included.\n\
1892 With a single argument, the function surrounding that address is dumped.\n\
1893 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1894 in the form of \"start,end\", or \"start,+length\".\n\
1896 Note that the address is interpreted as an expression, not as a location\n\
1897 like in the \"break\" command.\n\
1898 So, for example, if you want to disassemble function bar in file foo.c\n\
1899 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1900 set_cmd_completer (c
, location_completer
);
1902 add_com_alias ("!", "shell", class_support
, 0);
1904 c
= add_com ("make", class_support
, make_command
, _("\
1905 Run the ``make'' program using the rest of the line as arguments."));
1906 set_cmd_completer (c
, filename_completer
);
1907 add_cmd ("user", no_class
, show_user
, _("\
1908 Show definitions of non-python/scheme user defined commands.\n\
1909 Argument is the name of the user defined command.\n\
1910 With no argument, show definitions of all user defined commands."), &showlist
);
1911 add_com ("apropos", class_support
, apropos_command
,
1912 _("Search for commands matching a REGEXP"));
1914 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1915 &max_user_call_depth
, _("\
1916 Set the max call depth for non-python/scheme user-defined commands."), _("\
1917 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1919 show_max_user_call_depth
,
1920 &setlist
, &showlist
);
1922 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1923 Set tracing of GDB CLI commands."), _("\
1924 Show state of GDB CLI command tracing."), _("\
1925 When 'on', each command is displayed as it is executed."),
1928 &setlist
, &showlist
);
1930 c
= add_com ("alias", class_support
, alias_command
, _("\
1931 Define a new command that is an alias of an existing command.\n\
1932 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1933 ALIAS is the name of the alias command to create.\n\
1934 COMMAND is the command being aliased to.\n\
1935 If \"-a\" is specified, the command is an abbreviation,\n\
1936 and will not appear in help command list output.\n\
1939 Make \"spe\" an alias of \"set print elements\":\n\
1940 alias spe = set print elements\n\
1941 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1942 alias -a set print elms = set print elements"));
1946 init_cli_cmds (void)
1948 struct cmd_list_element
*c
;
1949 char *source_help_text
;
1951 source_help_text
= xstrprintf (_("\
1952 Read commands from a file named FILE.\n\
1954 Usage: source [-s] [-v] FILE\n\
1955 -s: search for the script in the source search path,\n\
1956 even if FILE contains directories.\n\
1957 -v: each command in FILE is echoed as it is executed.\n\
1959 Note that the file \"%s\" is read automatically in this way\n\
1960 when GDB is started."), gdbinit
);
1961 c
= add_cmd ("source", class_support
, source_command
,
1962 source_help_text
, &cmdlist
);
1963 set_cmd_completer (c
, filename_completer
);