3 Copyright (C) 2000-2018 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 utility functions */
63 static void print_sal_location (const symtab_and_line
&sal
);
65 static void ambiguous_line_spec (gdb::array_view
<const symtab_and_line
> sals
,
66 const char *format
, ...)
67 ATTRIBUTE_PRINTF (2, 3);
69 static void filter_sals (std::vector
<symtab_and_line
> &);
72 /* Limit the call depth of user-defined commands */
73 unsigned int max_user_call_depth
;
75 /* Define all cmd_list_elements. */
77 /* Chain containing all defined commands. */
79 struct cmd_list_element
*cmdlist
;
81 /* Chain containing all defined info subcommands. */
83 struct cmd_list_element
*infolist
;
85 /* Chain containing all defined enable subcommands. */
87 struct cmd_list_element
*enablelist
;
89 /* Chain containing all defined disable subcommands. */
91 struct cmd_list_element
*disablelist
;
93 /* Chain containing all defined stop subcommands. */
95 struct cmd_list_element
*stoplist
;
97 /* Chain containing all defined delete subcommands. */
99 struct cmd_list_element
*deletelist
;
101 /* Chain containing all defined detach subcommands. */
103 struct cmd_list_element
*detachlist
;
105 /* Chain containing all defined kill subcommands. */
107 struct cmd_list_element
*killlist
;
109 /* Chain containing all defined set subcommands */
111 struct cmd_list_element
*setlist
;
113 /* Chain containing all defined unset subcommands */
115 struct cmd_list_element
*unsetlist
;
117 /* Chain containing all defined show subcommands. */
119 struct cmd_list_element
*showlist
;
121 /* Chain containing all defined \"set history\". */
123 struct cmd_list_element
*sethistlist
;
125 /* Chain containing all defined \"show history\". */
127 struct cmd_list_element
*showhistlist
;
129 /* Chain containing all defined \"unset history\". */
131 struct cmd_list_element
*unsethistlist
;
133 /* Chain containing all defined maintenance subcommands. */
135 struct cmd_list_element
*maintenancelist
;
137 /* Chain containing all defined "maintenance info" subcommands. */
139 struct cmd_list_element
*maintenanceinfolist
;
141 /* Chain containing all defined "maintenance print" subcommands. */
143 struct cmd_list_element
*maintenanceprintlist
;
145 /* Chain containing all defined "maintenance check" subcommands. */
147 struct cmd_list_element
*maintenancechecklist
;
149 struct cmd_list_element
*setprintlist
;
151 struct cmd_list_element
*showprintlist
;
153 struct cmd_list_element
*setdebuglist
;
155 struct cmd_list_element
*showdebuglist
;
157 struct cmd_list_element
*setchecklist
;
159 struct cmd_list_element
*showchecklist
;
161 /* Command tracing state. */
163 int source_verbose
= 0;
164 int trace_commands
= 0;
166 /* 'script-extension' option support. */
168 static const char script_ext_off
[] = "off";
169 static const char script_ext_soft
[] = "soft";
170 static const char script_ext_strict
[] = "strict";
172 static const char *const script_ext_enums
[] = {
179 static const char *script_ext_mode
= script_ext_soft
;
181 /* Utility used everywhere when at least one argument is needed and
185 error_no_arg (const char *why
)
187 error (_("Argument required (%s)."), why
);
190 /* The "info" command is defined as a prefix, with allow_unknown = 0.
191 Therefore, its own definition is called only for "info" with no
195 info_command (const char *arg
, int from_tty
)
197 printf_unfiltered (_("\"info\" must be followed by "
198 "the name of an info command.\n"));
199 help_list (infolist
, "info ", all_commands
, gdb_stdout
);
202 /* The "show" command with no arguments shows all the settings. */
205 show_command (const char *arg
, int from_tty
)
207 cmd_show_list (showlist
, from_tty
, "");
211 /* Provide documentation on command or list given by COMMAND. FROM_TTY
215 help_command (const char *command
, int from_tty
)
217 help_cmd (command
, gdb_stdout
);
221 /* Note: The "complete" command is used by Emacs to implement completion.
222 [Is that why this function writes output with *_unfiltered?] */
225 complete_command (const char *arg
, int from_tty
)
229 if (max_completions
== 0)
231 /* Only print this for non-mi frontends. An MI frontend may not
232 be able to handle this. */
233 if (!current_uiout
->is_mi_like_p ())
235 printf_unfiltered (_("max-completions is zero,"
236 " completion is disabled.\n"));
244 completion_tracker tracker_handle_brkchars
;
245 completion_tracker tracker_handle_completions
;
246 completion_tracker
*tracker
;
248 int quote_char
= '\0';
253 word
= completion_find_completion_word (tracker_handle_brkchars
,
256 /* Completers that provide a custom word point in the
257 handle_brkchars phase also compute their completions then.
258 Completers that leave the completion word handling to readline
259 must be called twice. */
260 if (tracker_handle_brkchars
.use_custom_word_point ())
261 tracker
= &tracker_handle_brkchars
;
264 complete_line (tracker_handle_completions
, word
, arg
, strlen (arg
));
265 tracker
= &tracker_handle_completions
;
268 CATCH (ex
, RETURN_MASK_ALL
)
274 std::string
arg_prefix (arg
, word
- arg
);
276 completion_result result
277 = tracker
->build_completion_result (word
, word
- arg
, strlen (arg
));
279 if (result
.number_matches
!= 0)
281 if (result
.number_matches
== 1)
282 printf_unfiltered ("%s%s\n", arg_prefix
.c_str (), result
.match_list
[0]);
285 result
.sort_match_list ();
287 for (size_t i
= 0; i
< result
.number_matches
; i
++)
289 printf_unfiltered ("%s%s",
291 result
.match_list
[i
+ 1]);
293 printf_unfiltered ("%c", quote_char
);
294 printf_unfiltered ("\n");
298 if (result
.number_matches
== max_completions
)
300 /* ARG_PREFIX and WORD are included in the output so that emacs
301 will include the message in the output. */
302 printf_unfiltered (_("%s%s %s\n"),
303 arg_prefix
.c_str (), word
,
304 get_max_completions_reached_message ());
310 is_complete_command (struct cmd_list_element
*c
)
312 return cmd_cfunc_eq (c
, complete_command
);
316 show_version (const char *args
, int from_tty
)
318 print_gdb_version (gdb_stdout
);
319 printf_filtered ("\n");
323 show_configuration (const char *args
, int from_tty
)
325 print_gdb_configuration (gdb_stdout
);
328 /* Handle the quit command. */
331 quit_command (const char *args
, int from_tty
)
335 /* An optional expression may be used to cause gdb to terminate with
336 the value of that expression. */
339 struct value
*val
= parse_and_eval (args
);
341 exit_code
= (int) value_as_long (val
);
344 if (!quit_confirm ())
345 error (_("Not confirmed."));
347 query_if_trace_running (from_tty
);
349 quit_force (args
? &exit_code
: NULL
, from_tty
);
353 pwd_command (const char *args
, int from_tty
)
356 error (_("The \"pwd\" command does not take an argument: %s"), args
);
358 gdb::unique_xmalloc_ptr
<char> cwd (getcwd (NULL
, 0));
361 error (_("Error finding name of working directory: %s"),
362 safe_strerror (errno
));
364 if (strcmp (cwd
.get (), current_directory
) != 0)
365 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
366 current_directory
, cwd
.get ());
368 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
372 cd_command (const char *dir
, int from_tty
)
375 /* Found something other than leading repetitions of "/..". */
379 /* If the new directory is absolute, repeat is a no-op; if relative,
380 repeat might be useful but is more likely to be a mistake. */
383 gdb::unique_xmalloc_ptr
<char> dir_holder
384 (tilde_expand (dir
!= NULL
? dir
: "~"));
385 dir
= dir_holder
.get ();
388 perror_with_name (dir
);
390 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
391 /* There's too much mess with DOSish names like "d:", "d:.",
392 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
393 simply get the canonicalized name of the current directory. */
394 gdb::unique_xmalloc_ptr
<char> cwd (getcwd (NULL
, 0));
399 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
401 /* Remove the trailing slash unless this is a root directory
402 (including a drive letter on non-Unix systems). */
403 if (!(len
== 1) /* "/" */
404 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
405 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
411 dir_holder
.reset (savestring (dir
, len
));
412 if (IS_ABSOLUTE_PATH (dir_holder
.get ()))
414 xfree (current_directory
);
415 current_directory
= dir_holder
.release ();
419 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
420 current_directory
= concat (current_directory
, dir_holder
.get (),
423 current_directory
= concat (current_directory
, SLASH_STRING
,
424 dir_holder
.get (), (char *) NULL
);
427 /* Now simplify any occurrences of `.' and `..' in the pathname. */
430 for (p
= current_directory
; *p
;)
432 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
433 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
434 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
435 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
436 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
440 /* Search backwards for the directory just before the "/.."
441 and obliterate it and the "/..". */
444 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
447 if (q
== current_directory
)
448 /* current_directory is
449 a relative pathname ("can't happen"--leave it alone). */
453 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
458 /* We are dealing with leading repetitions of "/..", for
459 example "/../..", which is the Mach super-root. */
469 forget_cached_source_info ();
472 pwd_command ((char *) 0, 1);
475 /* Show the current value of the 'script-extension' option. */
478 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
479 struct cmd_list_element
*c
, const char *value
)
481 fprintf_filtered (file
,
482 _("Script filename extension recognition is \"%s\".\n"),
486 /* Try to open SCRIPT_FILE.
487 If successful, the full path name is stored in *FULL_PATHP,
488 and the stream is returned.
489 If not successful, return NULL; errno is set for the last file
492 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
493 search for it in the source search path. */
495 gdb::optional
<open_script
>
496 find_and_open_script (const char *script_file
, int search_path
)
499 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
500 gdb::optional
<open_script
> opened
;
502 gdb::unique_xmalloc_ptr
<char> file (tilde_expand (script_file
));
505 search_flags
|= OPF_SEARCH_IN_PATH
;
507 /* Search for and open 'file' on the search path used for source
508 files. Put the full location in *FULL_PATHP. */
510 fd
= openp (source_path
, search_flags
,
511 file
.get (), O_RDONLY
, &temp_path
);
512 gdb::unique_xmalloc_ptr
<char> full_path (temp_path
);
517 FILE *result
= fdopen (fd
, FOPEN_RT
);
520 int save_errno
= errno
;
526 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
531 /* Load script FILE, which has already been opened as STREAM.
532 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
533 This is provided as FILE may have been found via the source search path.
534 An important thing to note here is that FILE may be a symlink to a file
535 with a different or non-existing suffix, and thus one cannot infer the
536 extension language from FILE_TO_OPEN. */
539 source_script_from_stream (FILE *stream
, const char *file
,
540 const char *file_to_open
)
542 if (script_ext_mode
!= script_ext_off
)
544 const struct extension_language_defn
*extlang
545 = get_ext_lang_of_file (file
);
549 if (ext_lang_present_p (extlang
))
551 script_sourcer_func
*sourcer
552 = ext_lang_script_sourcer (extlang
);
554 gdb_assert (sourcer
!= NULL
);
555 sourcer (extlang
, stream
, file_to_open
);
558 else if (script_ext_mode
== script_ext_soft
)
560 /* Assume the file is a gdb script.
561 This is handled below. */
564 throw_ext_lang_unsupported (extlang
);
568 script_from_file (stream
, file
);
571 /* Worker to perform the "source" command.
573 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
574 search for it in the source search path. */
577 source_script_with_search (const char *file
, int from_tty
, int search_path
)
580 if (file
== NULL
|| *file
== 0)
581 error (_("source command requires file name of file to source."));
583 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
586 /* The script wasn't found, or was otherwise inaccessible.
587 If the source command was invoked interactively, throw an
588 error. Otherwise (e.g. if it was invoked by a script),
589 just emit a warning, rather than cause an error. */
591 perror_with_name (file
);
594 perror_warning_with_name (file
);
599 /* The python support reopens the file, so we need to pass full_path here
600 in case the file was found on the search path. It's useful to do this
601 anyway so that error messages show the actual file used. But only do
602 this if we (may have) used search_path, as printing the full path in
603 errors for the non-search case can be more noise than signal. */
604 source_script_from_stream (opened
->stream
.get (), file
,
605 search_path
? opened
->full_path
.get () : file
);
608 /* Wrapper around source_script_with_search to export it to main.c
609 for use in loading .gdbinit scripts. */
612 source_script (const char *file
, int from_tty
)
614 source_script_with_search (file
, from_tty
, 0);
618 source_command (const char *args
, int from_tty
)
620 const char *file
= args
;
623 scoped_restore save_source_verbose
= make_scoped_restore (&source_verbose
);
625 /* -v causes the source command to run in verbose mode.
626 -s causes the file to be searched in the source search path,
627 even if the file name contains a '/'.
628 We still have to be able to handle filenames with spaces in a
629 backward compatible way, so buildargv is not appropriate. */
633 while (args
[0] != '\0')
635 /* Make sure leading white space does not break the
637 args
= skip_spaces (args
);
642 if (args
[1] == 'v' && isspace (args
[2]))
646 /* Skip passed -v. */
649 else if (args
[1] == 's' && isspace (args
[2]))
653 /* Skip passed -s. */
660 file
= skip_spaces (args
);
663 source_script_with_search (file
, from_tty
, search_path
);
668 echo_command (const char *text
, int from_tty
)
670 const char *p
= text
;
674 while ((c
= *p
++) != '\0')
678 /* \ at end of argument is used after spaces
679 so they won't be lost. */
683 c
= parse_escape (get_current_arch (), &p
);
685 printf_filtered ("%c", c
);
688 printf_filtered ("%c", c
);
691 /* Force this output to appear now. */
693 gdb_flush (gdb_stdout
);
697 shell_escape (const char *arg
, int from_tty
)
699 #if defined(CANT_FORK) || \
700 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
701 /* If ARG is NULL, they want an inferior shell, but `system' just
702 reports if the shell is available when passed a NULL arg. */
703 int rc
= system (arg
? arg
: "");
706 arg
= "inferior shell";
710 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
711 safe_strerror (errno
));
712 gdb_flush (gdb_stderr
);
716 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
717 gdb_flush (gdb_stderr
);
720 /* Make sure to return to the directory GDB thinks it is, in case
721 the shell command we just ran changed it. */
722 chdir (current_directory
);
724 #else /* Can fork. */
727 if ((pid
= vfork ()) == 0)
729 const char *p
, *user_shell
;
733 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
734 user_shell
= "/bin/sh";
736 /* Get the name of the shell for arg0. */
737 p
= lbasename (user_shell
);
740 execl (user_shell
, p
, (char *) 0);
742 execl (user_shell
, p
, "-c", arg
, (char *) 0);
744 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
745 safe_strerror (errno
));
746 gdb_flush (gdb_stderr
);
751 waitpid (pid
, &status
, 0);
753 error (_("Fork failed"));
754 #endif /* Can fork. */
757 /* Implementation of the "shell" command. */
760 shell_command (const char *arg
, int from_tty
)
762 shell_escape (arg
, from_tty
);
766 edit_command (const char *arg
, int from_tty
)
768 struct symtab_and_line sal
;
774 /* Pull in the current default source line if necessary. */
777 set_default_source_symtab_and_line ();
778 sal
= get_current_source_symtab_and_line ();
781 /* Bare "edit" edits file with present line. */
786 error (_("No default source file yet."));
787 sal
.line
+= get_lines_to_list () / 2;
793 /* Now should only be one argument -- decode it in SAL. */
795 event_location_up location
= string_to_event_location (&arg1
,
797 std::vector
<symtab_and_line
> sals
= decode_line_1 (location
.get (),
798 DECODE_LINE_LIST_MODE
,
807 if (sals
.size () > 1)
809 ambiguous_line_spec (sals
,
810 _("Specified line is ambiguous:\n"));
817 error (_("Junk at end of line specification."));
819 /* If line was specified by address, first print exactly which
820 line, and which file. In this case, sal.symtab == 0 means
821 address is outside of all known source files, not that user
822 failed to give a filename. */
825 struct gdbarch
*gdbarch
;
828 error (_("No source file for address %s."),
829 paddress (get_current_arch (), sal
.pc
));
831 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
832 sym
= find_pc_function (sal
.pc
);
834 printf_filtered ("%s is in %s (%s:%d).\n",
835 paddress (gdbarch
, sal
.pc
),
836 SYMBOL_PRINT_NAME (sym
),
837 symtab_to_filename_for_display (sal
.symtab
),
840 printf_filtered ("%s is at %s:%d.\n",
841 paddress (gdbarch
, sal
.pc
),
842 symtab_to_filename_for_display (sal
.symtab
),
846 /* If what was given does not imply a symtab, it must be an
847 undebuggable symbol which means no source code. */
850 error (_("No line number known for %s."), arg
);
853 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
856 fn
= symtab_to_fullname (sal
.symtab
);
858 /* Quote the file name, in case it has whitespace or other special
860 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
861 shell_escape (p
, from_tty
);
866 list_command (const char *arg
, int from_tty
)
876 /* Pull in the current default source line if necessary. */
877 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
879 set_default_source_symtab_and_line ();
880 symtab_and_line cursal
= get_current_source_symtab_and_line ();
882 /* If this is the first "list" since we've set the current
883 source line, center the listing around that line. */
884 if (get_first_line_listed () == 0)
888 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
890 /* A small special case --- if listing backwards, and we
891 should list only one line, list the preceding line,
892 instead of the exact line we've just shown after e.g.,
893 stopping for a breakpoint. */
894 if (arg
!= NULL
&& arg
[0] == '-'
895 && get_lines_to_list () == 1 && first
> 1)
898 print_source_lines (cursal
.symtab
, first
,
899 first
+ get_lines_to_list (), 0);
902 /* "l" or "l +" lists next ten lines. */
903 else if (arg
== NULL
|| arg
[0] == '+')
904 print_source_lines (cursal
.symtab
, cursal
.line
,
905 cursal
.line
+ get_lines_to_list (), 0);
907 /* "l -" lists previous ten lines, the ones before the ten just
909 else if (arg
[0] == '-')
911 if (get_first_line_listed () == 1)
912 error (_("Already at the start of %s."),
913 symtab_to_filename_for_display (cursal
.symtab
));
914 print_source_lines (cursal
.symtab
,
915 std::max (get_first_line_listed ()
916 - get_lines_to_list (), 1),
917 get_first_line_listed (), 0);
923 /* Now if there is only one argument, decode it in SAL
925 If there are two arguments, decode them in SAL and SAL_END
926 and clear NO_END; however, if one of the arguments is blank,
927 set DUMMY_BEG or DUMMY_END to record that fact. */
929 if (!have_full_symbols () && !have_partial_symbols ())
930 error (_("No symbol table is loaded. Use the \"file\" command."));
932 std::vector
<symtab_and_line
> sals
;
933 symtab_and_line sal
, sal_end
;
940 event_location_up location
= string_to_event_location (&arg1
,
942 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
954 /* Record whether the BEG arg is all digits. */
956 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
957 linenum_beg
= (p
== arg1
);
959 /* Save the range of the first argument, in case we need to let the
960 user know it was ambiguous. */
961 const char *beg
= arg
;
962 size_t beg_len
= arg1
- beg
;
964 while (*arg1
== ' ' || *arg1
== '\t')
969 if (sals
.size () > 1)
971 ambiguous_line_spec (sals
,
972 _("Specified first line '%.*s' is ambiguous:\n"),
977 while (*arg1
== ' ' || *arg1
== '\t')
983 /* Save the last argument, in case we need to let the user
984 know it was ambiguous. */
985 const char *end_arg
= arg1
;
987 event_location_up location
988 = string_to_event_location (&arg1
, current_language
);
990 std::vector
<symtab_and_line
> sals_end
992 ? decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
994 : decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
995 NULL
, sal
.symtab
, sal
.line
));
997 filter_sals (sals_end
);
998 if (sals_end
.empty ())
1000 if (sals_end
.size () > 1)
1002 ambiguous_line_spec (sals_end
,
1003 _("Specified last line '%s' is ambiguous:\n"),
1007 sal_end
= sals_end
[0];
1012 error (_("Junk at end of line specification."));
1014 if (!no_end
&& !dummy_beg
&& !dummy_end
1015 && sal
.symtab
!= sal_end
.symtab
)
1016 error (_("Specified first and last lines are in different files."));
1017 if (dummy_beg
&& dummy_end
)
1018 error (_("Two empty args do not say what lines to list."));
1020 /* If line was specified by address,
1021 first print exactly which line, and which file.
1023 In this case, sal.symtab == 0 means address is outside of all
1024 known source files, not that user failed to give a filename. */
1027 struct gdbarch
*gdbarch
;
1029 if (sal
.symtab
== 0)
1030 error (_("No source file for address %s."),
1031 paddress (get_current_arch (), sal
.pc
));
1033 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1034 sym
= find_pc_function (sal
.pc
);
1036 printf_filtered ("%s is in %s (%s:%d).\n",
1037 paddress (gdbarch
, sal
.pc
),
1038 SYMBOL_PRINT_NAME (sym
),
1039 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1041 printf_filtered ("%s is at %s:%d.\n",
1042 paddress (gdbarch
, sal
.pc
),
1043 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1046 /* If line was not specified by just a line number, and it does not
1047 imply a symtab, it must be an undebuggable symbol which means no
1050 if (!linenum_beg
&& sal
.symtab
== 0)
1051 error (_("No line number known for %s."), arg
);
1053 /* If this command is repeated with RET,
1054 turn it into the no-arg variant. */
1057 set_repeat_arguments ("");
1059 if (dummy_beg
&& sal_end
.symtab
== 0)
1060 error (_("No default source file yet. Do \"help list\"."));
1062 print_source_lines (sal_end
.symtab
,
1063 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1064 sal_end
.line
+ 1, 0);
1065 else if (sal
.symtab
== 0)
1066 error (_("No default source file yet. Do \"help list\"."));
1069 for (int i
= 0; i
< sals
.size (); i
++)
1072 int first_line
= sal
.line
- get_lines_to_list () / 2;
1075 if (sals
.size () > 1)
1076 print_sal_location (sal
);
1077 print_source_lines (sal
.symtab
,
1079 first_line
+ get_lines_to_list (),
1084 print_source_lines (sal
.symtab
, sal
.line
,
1086 ? sal
.line
+ get_lines_to_list ()
1087 : sal_end
.line
+ 1),
1091 /* Subroutine of disassemble_command to simplify it.
1092 Perform the disassembly.
1093 NAME is the name of the function if known, or NULL.
1094 [LOW,HIGH) are the range of addresses to disassemble.
1095 MIXED is non-zero to print source with the assembler. */
1098 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1099 CORE_ADDR low
, CORE_ADDR high
,
1100 gdb_disassembly_flags flags
)
1103 if (!tui_is_window_visible (DISASSEM_WIN
))
1106 printf_filtered ("Dump of assembler code ");
1108 printf_filtered ("for function %s:\n", name
);
1110 printf_filtered ("from %s to %s:\n",
1111 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1113 /* Dump the specified range. */
1114 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1116 printf_filtered ("End of assembler dump.\n");
1117 gdb_flush (gdb_stdout
);
1122 tui_show_assembly (gdbarch
, low
);
1127 /* Subroutine of disassemble_command to simplify it.
1128 Print a disassembly of the current function according to FLAGS. */
1131 disassemble_current_function (gdb_disassembly_flags flags
)
1133 struct frame_info
*frame
;
1134 struct gdbarch
*gdbarch
;
1135 CORE_ADDR low
, high
, pc
;
1138 frame
= get_selected_frame (_("No frame selected."));
1139 gdbarch
= get_frame_arch (frame
);
1140 pc
= get_frame_address_in_block (frame
);
1141 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1142 error (_("No function contains program counter for selected frame."));
1144 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1147 /* FIXME: cagney/2004-02-07: This should be an observer. */
1148 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1150 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1152 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1155 /* Dump a specified section of assembly code.
1159 - dump the assembly code for the function of the current pc
1160 disassemble [/mrs] addr
1161 - dump the assembly code for the function at ADDR
1162 disassemble [/mrs] low,high
1163 disassemble [/mrs] low,+length
1164 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1166 A /m modifier will include source code with the assembly in a
1167 "source centric" view. This view lists only the file of the first insn,
1168 even if other source files are involved (e.g., inlined functions), and
1169 the output is in source order, even with optimized code. This view is
1170 considered deprecated as it hasn't been useful in practice.
1172 A /r modifier will include raw instructions in hex with the assembly.
1174 A /s modifier will include source code with the assembly, like /m, with
1175 two important differences:
1176 1) The output is still in pc address order.
1177 2) File names and contents for all relevant source files are displayed. */
1180 disassemble_command (const char *arg
, int from_tty
)
1182 struct gdbarch
*gdbarch
= get_current_arch ();
1183 CORE_ADDR low
, high
;
1186 gdb_disassembly_flags flags
;
1198 error (_("Missing modifier."));
1200 while (*p
&& ! isspace (*p
))
1205 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1208 flags
|= DISASSEMBLY_RAW_INSN
;
1211 flags
|= DISASSEMBLY_SOURCE
;
1214 error (_("Invalid disassembly modifier."));
1218 p
= skip_spaces (p
);
1221 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1222 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1223 error (_("Cannot specify both /m and /s."));
1227 flags
|= DISASSEMBLY_OMIT_FNAME
;
1228 disassemble_current_function (flags
);
1232 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1238 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1239 error (_("No function contains specified address."));
1241 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1244 /* FIXME: cagney/2004-02-07: This should be an observer. */
1245 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1247 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1248 flags
|= DISASSEMBLY_OMIT_FNAME
;
1252 /* Two arguments. */
1255 p
= skip_spaces (p
);
1261 high
= parse_and_eval_address (p
);
1266 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1270 make_command (const char *arg
, int from_tty
)
1273 shell_escape ("make", from_tty
);
1276 std::string cmd
= std::string ("make ") + arg
;
1278 shell_escape (cmd
.c_str (), from_tty
);
1283 show_user (const char *args
, int from_tty
)
1285 struct cmd_list_element
*c
;
1286 extern struct cmd_list_element
*cmdlist
;
1290 const char *comname
= args
;
1292 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1293 if (!cli_user_command_p (c
))
1294 error (_("Not a user command."));
1295 show_user_1 (c
, "", args
, gdb_stdout
);
1299 for (c
= cmdlist
; c
; c
= c
->next
)
1301 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1302 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1307 /* Search through names of commands and documentations for a certain
1308 regular expression. */
1311 apropos_command (const char *searchstr
, int from_tty
)
1313 if (searchstr
== NULL
)
1314 error (_("REGEXP string is empty"));
1316 compiled_regex
pattern (searchstr
, REG_ICASE
,
1317 _("Error in regular expression"));
1319 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1322 /* Subroutine of alias_command to simplify it.
1323 Return the first N elements of ARGV flattened back to a string
1324 with a space separating each element.
1325 ARGV may not be NULL.
1326 This does not take care of quoting elements in case they contain spaces
1330 argv_to_string (char **argv
, int n
)
1335 gdb_assert (argv
!= NULL
);
1336 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1338 for (i
= 0; i
< n
; ++i
)
1348 /* Subroutine of alias_command to simplify it.
1349 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1352 valid_command_p (const char *command
)
1354 struct cmd_list_element
*c
;
1356 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1358 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1361 /* This is the slightly tricky part.
1362 lookup_cmd_1 will return a pointer to the last part of COMMAND
1363 to match, leaving COMMAND pointing at the remainder. */
1364 while (*command
== ' ' || *command
== '\t')
1366 return *command
== '\0';
1369 /* Called when "alias" was incorrectly used. */
1372 alias_usage_error (void)
1374 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1377 /* Make an alias of an existing command. */
1380 alias_command (const char *args
, int from_tty
)
1382 int i
, alias_argc
, command_argc
;
1383 int abbrev_flag
= 0;
1385 const char *alias
, *command
;
1387 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1388 alias_usage_error ();
1390 equals
= strchr (args
, '=');
1391 std::string
args2 (args
, equals
- args
);
1393 gdb_argv
built_alias_argv (args2
.c_str ());
1394 gdb_argv
command_argv (equals
+ 1);
1396 char **alias_argv
= built_alias_argv
.get ();
1397 while (alias_argv
[0] != NULL
)
1399 if (strcmp (alias_argv
[0], "-a") == 0)
1404 else if (strcmp (alias_argv
[0], "--") == 0)
1413 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1414 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1415 alias_usage_error ();
1417 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1419 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1422 error (_("Invalid command name: %s"), alias_argv
[i
]);
1424 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1428 alias_argc
= countargv (alias_argv
);
1429 command_argc
= command_argv
.count ();
1431 /* COMMAND must exist.
1432 Reconstruct the command to remove any extraneous spaces,
1433 for better error messages. */
1434 std::string
command_string (argv_to_string (command_argv
.get (),
1436 command
= command_string
.c_str ();
1437 if (! valid_command_p (command
))
1438 error (_("Invalid command to alias to: %s"), command
);
1440 /* ALIAS must not exist. */
1441 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1442 alias
= alias_string
.c_str ();
1443 if (valid_command_p (alias
))
1444 error (_("Alias already exists: %s"), alias
);
1446 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1447 Example: alias spe = set print elements
1449 Otherwise ALIAS and COMMAND must have the same number of words,
1450 and every word except the last must match; and the last word of
1451 ALIAS is made an alias of the last word of COMMAND.
1452 Example: alias set print elms = set pr elem
1453 Note that unambiguous abbreviations are allowed. */
1455 if (alias_argc
== 1)
1457 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1458 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1463 const char *alias_prefix
, *command_prefix
;
1464 struct cmd_list_element
*c_alias
, *c_command
;
1466 if (alias_argc
!= command_argc
)
1467 error (_("Mismatched command length between ALIAS and COMMAND."));
1469 /* Create copies of ALIAS and COMMAND without the last word,
1470 and use that to verify the leading elements match. */
1471 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1473 std::string
command_prefix_string (argv_to_string (alias_argv
,
1475 alias_prefix
= alias_prefix_string
.c_str ();
1476 command_prefix
= command_prefix_string
.c_str ();
1478 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1479 /* We've already tried to look up COMMAND. */
1480 gdb_assert (c_command
!= NULL
1481 && c_command
!= (struct cmd_list_element
*) -1);
1482 gdb_assert (c_command
->prefixlist
!= NULL
);
1483 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1484 if (c_alias
!= c_command
)
1485 error (_("ALIAS and COMMAND prefixes do not match."));
1487 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1488 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1489 command_argv
[command_argc
- 1],
1490 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1494 /* Print the file / line number / symbol name of the location
1495 specified by SAL. */
1498 print_sal_location (const symtab_and_line
&sal
)
1500 scoped_restore_current_program_space restore_pspace
;
1501 set_current_program_space (sal
.pspace
);
1503 const char *sym_name
= NULL
;
1504 if (sal
.symbol
!= NULL
)
1505 sym_name
= SYMBOL_PRINT_NAME (sal
.symbol
);
1506 printf_filtered (_("file: \"%s\", line number: %d, symbol: \"%s\"\n"),
1507 symtab_to_filename_for_display (sal
.symtab
),
1508 sal
.line
, sym_name
!= NULL
? sym_name
: "???");
1511 /* Print a list of files and line numbers which a user may choose from
1512 in order to list a function which was specified ambiguously (as
1513 with `list classname::overloadedfuncname', for example). The SALS
1514 array provides the filenames and line numbers. FORMAT is a
1515 printf-style format string used to tell the user what was
1519 ambiguous_line_spec (gdb::array_view
<const symtab_and_line
> sals
,
1520 const char *format
, ...)
1523 va_start (ap
, format
);
1524 vprintf_filtered (format
, ap
);
1527 for (const auto &sal
: sals
)
1528 print_sal_location (sal
);
1531 /* Comparison function for filter_sals. Returns a qsort-style
1535 cmp_symtabs (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1537 const char *dira
= SYMTAB_DIRNAME (sala
.symtab
);
1538 const char *dirb
= SYMTAB_DIRNAME (salb
.symtab
);
1546 else if (dirb
== NULL
)
1553 r
= filename_cmp (dira
, dirb
);
1558 r
= filename_cmp (sala
.symtab
->filename
, salb
.symtab
->filename
);
1562 if (sala
.line
< salb
.line
)
1564 return sala
.line
== salb
.line
? 0 : 1;
1567 /* Remove any SALs that do not match the current program space, or
1568 which appear to be "file:line" duplicates. */
1571 filter_sals (std::vector
<symtab_and_line
> &sals
)
1573 /* Remove SALs that do not match. */
1574 auto from
= std::remove_if (sals
.begin (), sals
.end (),
1575 [&] (const symtab_and_line
&sal
)
1576 { return (sal
.pspace
!= current_program_space
|| sal
.symtab
== NULL
); });
1579 std::sort (sals
.begin (), from
,
1580 [] (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1581 { return cmp_symtabs (sala
, salb
) < 0; });
1583 from
= std::unique (sals
.begin (), from
,
1584 [&] (const symtab_and_line
&sala
,
1585 const symtab_and_line
&salb
)
1586 { return cmp_symtabs (sala
, salb
) == 0; });
1588 sals
.erase (from
, sals
.end ());
1592 set_debug (const char *arg
, int from_tty
)
1594 printf_unfiltered (_("\"set debug\" must be followed by "
1595 "the name of a debug subcommand.\n"));
1596 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1600 show_debug (const char *args
, int from_tty
)
1602 cmd_show_list (showdebuglist
, from_tty
, "");
1606 init_cmd_lists (void)
1608 max_user_call_depth
= 1024;
1612 show_info_verbose (struct ui_file
*file
, int from_tty
,
1613 struct cmd_list_element
*c
,
1617 fprintf_filtered (file
,
1618 _("Verbose printing of informational messages is %s.\n"),
1621 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1625 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1626 struct cmd_list_element
*c
, const char *value
)
1628 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1633 show_remote_debug (struct ui_file
*file
, int from_tty
,
1634 struct cmd_list_element
*c
, const char *value
)
1636 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1641 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1642 struct cmd_list_element
*c
, const char *value
)
1644 fprintf_filtered (file
,
1645 _("Timeout limit to wait for target to respond is %s.\n"),
1650 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1651 struct cmd_list_element
*c
, const char *value
)
1653 fprintf_filtered (file
,
1654 _("The max call depth for user-defined commands is %s.\n"),
1659 _initialize_cli_cmds (void)
1661 struct cmd_list_element
*c
;
1663 /* Define the classes of commands.
1664 They will appear in the help list in alphabetical order. */
1666 add_cmd ("internals", class_maintenance
, _("\
1667 Maintenance commands.\n\
1668 Some gdb commands are provided just for use by gdb maintainers.\n\
1669 These commands are subject to frequent change, and may not be as\n\
1670 well documented as user commands."),
1672 add_cmd ("obscure", class_obscure
, _("Obscure features."), &cmdlist
);
1673 add_cmd ("aliases", class_alias
,
1674 _("Aliases of other commands."), &cmdlist
);
1675 add_cmd ("user-defined", class_user
, _("\
1676 User-defined commands.\n\
1677 The commands in this class are those defined by the user.\n\
1678 Use the \"define\" command to define a command."), &cmdlist
);
1679 add_cmd ("support", class_support
, _("Support facilities."), &cmdlist
);
1681 add_cmd ("status", class_info
, _("Status inquiries."), &cmdlist
);
1682 add_cmd ("files", class_files
, _("Specifying and examining files."),
1684 add_cmd ("breakpoints", class_breakpoint
,
1685 _("Making program stop at certain points."), &cmdlist
);
1686 add_cmd ("data", class_vars
, _("Examining data."), &cmdlist
);
1687 add_cmd ("stack", class_stack
, _("\
1688 Examining the stack.\n\
1689 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1690 counting from zero for the innermost (currently executing) frame.\n\n\
1691 At any time gdb identifies one frame as the \"selected\" frame.\n\
1692 Variable lookups are done with respect to the selected frame.\n\
1693 When the program being debugged stops, gdb selects the innermost frame.\n\
1694 The commands below can be used to select other frames by number or address."),
1696 add_cmd ("running", class_run
, _("Running the program."), &cmdlist
);
1698 /* Define general commands. */
1700 add_com ("pwd", class_files
, pwd_command
, _("\
1701 Print working directory. This is used for your program as well."));
1703 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1704 Set working directory to DIR for debugger.\n\
1705 The debugger's current working directory specifies where scripts and other\n\
1706 files that can be loaded by GDB are located.\n\
1707 In order to change the inferior's current working directory, the recommended\n\
1708 way is to use the \"set cwd\" command."), &cmdlist
);
1709 set_cmd_completer (c
, filename_completer
);
1711 add_com ("echo", class_support
, echo_command
, _("\
1712 Print a constant string. Give string as argument.\n\
1713 C escape sequences may be used in the argument.\n\
1714 No newline is added at the end of the argument;\n\
1715 use \"\\n\" if you want a newline to be printed.\n\
1716 Since leading and trailing whitespace are ignored in command arguments,\n\
1717 if you want to print some you must use \"\\\" before leading whitespace\n\
1718 to be printed or after trailing whitespace."));
1720 add_setshow_enum_cmd ("script-extension", class_support
,
1721 script_ext_enums
, &script_ext_mode
, _("\
1722 Set mode for script filename extension recognition."), _("\
1723 Show mode for script filename extension recognition."), _("\
1724 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1725 soft == evaluate script according to filename extension, fallback to GDB script"
1727 strict == evaluate script according to filename extension, error if not supported"
1730 show_script_ext_mode
,
1731 &setlist
, &showlist
);
1733 add_com ("quit", class_support
, quit_command
, _("\
1735 Usage: quit [EXPR]\n\
1736 The optional expression EXPR, if present, is evaluated and the result\n\
1737 used as GDB's exit code. The default is zero."));
1738 c
= add_com ("help", class_support
, help_command
,
1739 _("Print list of commands."));
1740 set_cmd_completer (c
, command_completer
);
1741 add_com_alias ("q", "quit", class_support
, 1);
1742 add_com_alias ("h", "help", class_support
, 1);
1744 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1745 Set verbosity."), _("\
1746 Show verbosity."), NULL
,
1749 &setlist
, &showlist
);
1751 add_prefix_cmd ("history", class_support
, set_history
,
1752 _("Generic command for setting command history parameters."),
1753 &sethistlist
, "set history ", 0, &setlist
);
1754 add_prefix_cmd ("history", class_support
, show_history
,
1755 _("Generic command for showing command history parameters."),
1756 &showhistlist
, "show history ", 0, &showlist
);
1758 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1759 Set history expansion on command input."), _("\
1760 Show history expansion on command input."), _("\
1761 Without an argument, history expansion is enabled."),
1763 show_history_expansion_p
,
1764 &sethistlist
, &showhistlist
);
1766 add_prefix_cmd ("info", class_info
, info_command
, _("\
1767 Generic command for showing things about the program being debugged."),
1768 &infolist
, "info ", 0, &cmdlist
);
1769 add_com_alias ("i", "info", class_info
, 1);
1770 add_com_alias ("inf", "info", class_info
, 1);
1772 add_com ("complete", class_obscure
, complete_command
,
1773 _("List the completions for the rest of the line as a command."));
1775 add_prefix_cmd ("show", class_info
, show_command
, _("\
1776 Generic command for showing things about the debugger."),
1777 &showlist
, "show ", 0, &cmdlist
);
1778 /* Another way to get at the same thing. */
1779 add_info ("set", show_command
, _("Show all GDB settings."));
1781 add_cmd ("commands", no_set_class
, show_commands
, _("\
1782 Show the history of commands you typed.\n\
1783 You can supply a command number to start with, or a `+' to start after\n\
1784 the previous command number shown."),
1787 add_cmd ("version", no_set_class
, show_version
,
1788 _("Show what version of GDB this is."), &showlist
);
1790 add_cmd ("configuration", no_set_class
, show_configuration
,
1791 _("Show how GDB was configured at build time."), &showlist
);
1793 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1794 Set debugging of remote protocol."), _("\
1795 Show debugging of remote protocol."), _("\
1796 When enabled, each packet sent or received with the remote target\n\
1800 &setdebuglist
, &showdebuglist
);
1802 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1803 &remote_timeout
, _("\
1804 Set timeout limit to wait for target to respond."), _("\
1805 Show timeout limit to wait for target to respond."), _("\
1806 This value is used to set the time limit for gdb to wait for a response\n\
1809 show_remote_timeout
,
1810 &setlist
, &showlist
);
1812 add_prefix_cmd ("debug", no_class
, set_debug
,
1813 _("Generic command for setting gdb debugging flags"),
1814 &setdebuglist
, "set debug ", 0, &setlist
);
1816 add_prefix_cmd ("debug", no_class
, show_debug
,
1817 _("Generic command for showing gdb debugging flags"),
1818 &showdebuglist
, "show debug ", 0, &showlist
);
1820 c
= add_com ("shell", class_support
, shell_command
, _("\
1821 Execute the rest of the line as a shell command.\n\
1822 With no arguments, run an inferior shell."));
1823 set_cmd_completer (c
, filename_completer
);
1825 c
= add_com ("edit", class_files
, edit_command
, _("\
1826 Edit specified file or function.\n\
1827 With no argument, edits file containing most recent line listed.\n\
1828 Editing targets can be specified in these ways:\n\
1829 FILE:LINENUM, to edit at that line in that file,\n\
1830 FUNCTION, to edit at the beginning of that function,\n\
1831 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1832 *ADDRESS, to edit at the line containing that address.\n\
1833 Uses EDITOR environment variable contents as editor (or ex as default)."));
1835 c
->completer
= location_completer
;
1837 add_com ("list", class_files
, list_command
, _("\
1838 List specified function or line.\n\
1839 With no argument, lists ten more lines after or around previous listing.\n\
1840 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1841 One argument specifies a line, and ten lines are listed around that line.\n\
1842 Two arguments with comma between specify starting and ending lines to list.\n\
1843 Lines can be specified in these ways:\n\
1844 LINENUM, to list around that line in current file,\n\
1845 FILE:LINENUM, to list around that line in that file,\n\
1846 FUNCTION, to list around beginning of that function,\n\
1847 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1848 *ADDRESS, to list around the line containing that address.\n\
1849 With two args, if one is empty, it stands for ten lines away from\n\
1852 By default, when a single location is given, display ten lines.\n\
1853 This can be changed using \"set listsize\", and the current value\n\
1854 can be shown using \"show listsize\"."));
1856 add_com_alias ("l", "list", class_files
, 1);
1859 add_com_alias ("file", "list", class_files
, 1);
1861 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1862 Disassemble a specified section of memory.\n\
1863 Default is the function surrounding the pc of the selected frame.\n\
1865 With a /m modifier, source lines are included (if available).\n\
1866 This view is \"source centric\": the output is in source line order,\n\
1867 regardless of any optimization that is present. Only the main source file\n\
1868 is displayed, not those of, e.g., any inlined functions.\n\
1869 This modifier hasn't proved useful in practice and is deprecated\n\
1872 With a /s modifier, source lines are included (if available).\n\
1873 This differs from /m in two important respects:\n\
1874 - the output is still in pc address order, and\n\
1875 - file names and contents for all relevant source files are displayed.\n\
1877 With a /r modifier, raw instructions in hex are included.\n\
1879 With a single argument, the function surrounding that address is dumped.\n\
1880 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1881 in the form of \"start,end\", or \"start,+length\".\n\
1883 Note that the address is interpreted as an expression, not as a location\n\
1884 like in the \"break\" command.\n\
1885 So, for example, if you want to disassemble function bar in file foo.c\n\
1886 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1887 set_cmd_completer (c
, location_completer
);
1889 add_com_alias ("!", "shell", class_support
, 0);
1891 c
= add_com ("make", class_support
, make_command
, _("\
1892 Run the ``make'' program using the rest of the line as arguments."));
1893 set_cmd_completer (c
, filename_completer
);
1894 add_cmd ("user", no_class
, show_user
, _("\
1895 Show definitions of non-python/scheme user defined commands.\n\
1896 Argument is the name of the user defined command.\n\
1897 With no argument, show definitions of all user defined commands."), &showlist
);
1898 add_com ("apropos", class_support
, apropos_command
,
1899 _("Search for commands matching a REGEXP"));
1901 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1902 &max_user_call_depth
, _("\
1903 Set the max call depth for non-python/scheme user-defined commands."), _("\
1904 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1906 show_max_user_call_depth
,
1907 &setlist
, &showlist
);
1909 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1910 Set tracing of GDB CLI commands."), _("\
1911 Show state of GDB CLI command tracing."), _("\
1912 When 'on', each command is displayed as it is executed."),
1915 &setlist
, &showlist
);
1917 c
= add_com ("alias", class_support
, alias_command
, _("\
1918 Define a new command that is an alias of an existing command.\n\
1919 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1920 ALIAS is the name of the alias command to create.\n\
1921 COMMAND is the command being aliased to.\n\
1922 If \"-a\" is specified, the command is an abbreviation,\n\
1923 and will not appear in help command list output.\n\
1926 Make \"spe\" an alias of \"set print elements\":\n\
1927 alias spe = set print elements\n\
1928 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1929 alias -a set print elms = set print elements"));
1933 init_cli_cmds (void)
1935 struct cmd_list_element
*c
;
1936 char *source_help_text
;
1938 source_help_text
= xstrprintf (_("\
1939 Read commands from a file named FILE.\n\
1941 Usage: source [-s] [-v] FILE\n\
1942 -s: search for the script in the source search path,\n\
1943 even if FILE contains directories.\n\
1944 -v: each command in FILE is echoed as it is executed.\n\
1946 Note that the file \"%s\" is read automatically in this way\n\
1947 when GDB is started."), gdbinit
);
1948 c
= add_cmd ("source", class_support
, source_command
,
1949 source_help_text
, &cmdlist
);
1950 set_cmd_completer (c
, filename_completer
);