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
, true);
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 openp_flags 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. */
509 gdb::unique_xmalloc_ptr
<char> full_path
;
510 fd
= openp (source_path
, search_flags
,
511 file
.get (), O_RDONLY
, &full_path
);
516 FILE *result
= fdopen (fd
, FOPEN_RT
);
519 int save_errno
= errno
;
525 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
530 /* Load script FILE, which has already been opened as STREAM.
531 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
532 This is provided as FILE may have been found via the source search path.
533 An important thing to note here is that FILE may be a symlink to a file
534 with a different or non-existing suffix, and thus one cannot infer the
535 extension language from FILE_TO_OPEN. */
538 source_script_from_stream (FILE *stream
, const char *file
,
539 const char *file_to_open
)
541 if (script_ext_mode
!= script_ext_off
)
543 const struct extension_language_defn
*extlang
544 = get_ext_lang_of_file (file
);
548 if (ext_lang_present_p (extlang
))
550 script_sourcer_func
*sourcer
551 = ext_lang_script_sourcer (extlang
);
553 gdb_assert (sourcer
!= NULL
);
554 sourcer (extlang
, stream
, file_to_open
);
557 else if (script_ext_mode
== script_ext_soft
)
559 /* Assume the file is a gdb script.
560 This is handled below. */
563 throw_ext_lang_unsupported (extlang
);
567 script_from_file (stream
, file
);
570 /* Worker to perform the "source" command.
572 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
573 search for it in the source search path. */
576 source_script_with_search (const char *file
, int from_tty
, int search_path
)
579 if (file
== NULL
|| *file
== 0)
580 error (_("source command requires file name of file to source."));
582 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
585 /* The script wasn't found, or was otherwise inaccessible.
586 If the source command was invoked interactively, throw an
587 error. Otherwise (e.g. if it was invoked by a script),
588 just emit a warning, rather than cause an error. */
590 perror_with_name (file
);
593 perror_warning_with_name (file
);
598 /* The python support reopens the file, so we need to pass full_path here
599 in case the file was found on the search path. It's useful to do this
600 anyway so that error messages show the actual file used. But only do
601 this if we (may have) used search_path, as printing the full path in
602 errors for the non-search case can be more noise than signal. */
603 source_script_from_stream (opened
->stream
.get (), file
,
604 search_path
? opened
->full_path
.get () : file
);
607 /* Wrapper around source_script_with_search to export it to main.c
608 for use in loading .gdbinit scripts. */
611 source_script (const char *file
, int from_tty
)
613 source_script_with_search (file
, from_tty
, 0);
617 source_command (const char *args
, int from_tty
)
619 const char *file
= args
;
622 scoped_restore save_source_verbose
= make_scoped_restore (&source_verbose
);
624 /* -v causes the source command to run in verbose mode.
625 -s causes the file to be searched in the source search path,
626 even if the file name contains a '/'.
627 We still have to be able to handle filenames with spaces in a
628 backward compatible way, so buildargv is not appropriate. */
632 while (args
[0] != '\0')
634 /* Make sure leading white space does not break the
636 args
= skip_spaces (args
);
641 if (args
[1] == 'v' && isspace (args
[2]))
645 /* Skip passed -v. */
648 else if (args
[1] == 's' && isspace (args
[2]))
652 /* Skip passed -s. */
659 file
= skip_spaces (args
);
662 source_script_with_search (file
, from_tty
, search_path
);
667 echo_command (const char *text
, int from_tty
)
669 const char *p
= text
;
673 while ((c
= *p
++) != '\0')
677 /* \ at end of argument is used after spaces
678 so they won't be lost. */
682 c
= parse_escape (get_current_arch (), &p
);
684 printf_filtered ("%c", c
);
687 printf_filtered ("%c", c
);
690 /* Force this output to appear now. */
692 gdb_flush (gdb_stdout
);
696 shell_escape (const char *arg
, int from_tty
)
698 #if defined(CANT_FORK) || \
699 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
700 /* If ARG is NULL, they want an inferior shell, but `system' just
701 reports if the shell is available when passed a NULL arg. */
702 int rc
= system (arg
? arg
: "");
705 arg
= "inferior shell";
709 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
710 safe_strerror (errno
));
711 gdb_flush (gdb_stderr
);
715 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
716 gdb_flush (gdb_stderr
);
719 /* Make sure to return to the directory GDB thinks it is, in case
720 the shell command we just ran changed it. */
721 chdir (current_directory
);
723 #else /* Can fork. */
726 if ((pid
= vfork ()) == 0)
728 const char *p
, *user_shell
;
732 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
733 user_shell
= "/bin/sh";
735 /* Get the name of the shell for arg0. */
736 p
= lbasename (user_shell
);
739 execl (user_shell
, p
, (char *) 0);
741 execl (user_shell
, p
, "-c", arg
, (char *) 0);
743 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
744 safe_strerror (errno
));
745 gdb_flush (gdb_stderr
);
750 waitpid (pid
, &status
, 0);
752 error (_("Fork failed"));
753 #endif /* Can fork. */
756 /* Implementation of the "shell" command. */
759 shell_command (const char *arg
, int from_tty
)
761 shell_escape (arg
, from_tty
);
765 edit_command (const char *arg
, int from_tty
)
767 struct symtab_and_line sal
;
773 /* Pull in the current default source line if necessary. */
776 set_default_source_symtab_and_line ();
777 sal
= get_current_source_symtab_and_line ();
780 /* Bare "edit" edits file with present line. */
785 error (_("No default source file yet."));
786 sal
.line
+= get_lines_to_list () / 2;
792 /* Now should only be one argument -- decode it in SAL. */
794 event_location_up location
= string_to_event_location (&arg1
,
796 std::vector
<symtab_and_line
> sals
= decode_line_1 (location
.get (),
797 DECODE_LINE_LIST_MODE
,
806 if (sals
.size () > 1)
808 ambiguous_line_spec (sals
,
809 _("Specified line is ambiguous:\n"));
816 error (_("Junk at end of line specification."));
818 /* If line was specified by address, first print exactly which
819 line, and which file. In this case, sal.symtab == 0 means
820 address is outside of all known source files, not that user
821 failed to give a filename. */
824 struct gdbarch
*gdbarch
;
827 error (_("No source file for address %s."),
828 paddress (get_current_arch (), sal
.pc
));
830 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
831 sym
= find_pc_function (sal
.pc
);
833 printf_filtered ("%s is in %s (%s:%d).\n",
834 paddress (gdbarch
, sal
.pc
),
835 SYMBOL_PRINT_NAME (sym
),
836 symtab_to_filename_for_display (sal
.symtab
),
839 printf_filtered ("%s is at %s:%d.\n",
840 paddress (gdbarch
, sal
.pc
),
841 symtab_to_filename_for_display (sal
.symtab
),
845 /* If what was given does not imply a symtab, it must be an
846 undebuggable symbol which means no source code. */
849 error (_("No line number known for %s."), arg
);
852 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
855 fn
= symtab_to_fullname (sal
.symtab
);
857 /* Quote the file name, in case it has whitespace or other special
859 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
860 shell_escape (p
, from_tty
);
865 list_command (const char *arg
, int from_tty
)
875 /* Pull in the current default source line if necessary. */
876 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
878 set_default_source_symtab_and_line ();
879 symtab_and_line cursal
= get_current_source_symtab_and_line ();
881 /* If this is the first "list" since we've set the current
882 source line, center the listing around that line. */
883 if (get_first_line_listed () == 0)
887 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
889 /* A small special case --- if listing backwards, and we
890 should list only one line, list the preceding line,
891 instead of the exact line we've just shown after e.g.,
892 stopping for a breakpoint. */
893 if (arg
!= NULL
&& arg
[0] == '-'
894 && get_lines_to_list () == 1 && first
> 1)
897 print_source_lines (cursal
.symtab
, first
,
898 first
+ get_lines_to_list (), 0);
901 /* "l" or "l +" lists next ten lines. */
902 else if (arg
== NULL
|| arg
[0] == '+')
903 print_source_lines (cursal
.symtab
, cursal
.line
,
904 cursal
.line
+ get_lines_to_list (), 0);
906 /* "l -" lists previous ten lines, the ones before the ten just
908 else if (arg
[0] == '-')
910 if (get_first_line_listed () == 1)
911 error (_("Already at the start of %s."),
912 symtab_to_filename_for_display (cursal
.symtab
));
913 print_source_lines (cursal
.symtab
,
914 std::max (get_first_line_listed ()
915 - get_lines_to_list (), 1),
916 get_first_line_listed (), 0);
922 /* Now if there is only one argument, decode it in SAL
924 If there are two arguments, decode them in SAL and SAL_END
925 and clear NO_END; however, if one of the arguments is blank,
926 set DUMMY_BEG or DUMMY_END to record that fact. */
928 if (!have_full_symbols () && !have_partial_symbols ())
929 error (_("No symbol table is loaded. Use the \"file\" command."));
931 std::vector
<symtab_and_line
> sals
;
932 symtab_and_line sal
, sal_end
;
939 event_location_up location
= string_to_event_location (&arg1
,
941 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
953 /* Record whether the BEG arg is all digits. */
955 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
956 linenum_beg
= (p
== arg1
);
958 /* Save the range of the first argument, in case we need to let the
959 user know it was ambiguous. */
960 const char *beg
= arg
;
961 size_t beg_len
= arg1
- beg
;
963 while (*arg1
== ' ' || *arg1
== '\t')
968 if (sals
.size () > 1)
970 ambiguous_line_spec (sals
,
971 _("Specified first line '%.*s' is ambiguous:\n"),
976 while (*arg1
== ' ' || *arg1
== '\t')
982 /* Save the last argument, in case we need to let the user
983 know it was ambiguous. */
984 const char *end_arg
= arg1
;
986 event_location_up location
987 = string_to_event_location (&arg1
, current_language
);
989 std::vector
<symtab_and_line
> sals_end
991 ? decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
993 : decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
994 NULL
, sal
.symtab
, sal
.line
));
996 filter_sals (sals_end
);
997 if (sals_end
.empty ())
999 if (sals_end
.size () > 1)
1001 ambiguous_line_spec (sals_end
,
1002 _("Specified last line '%s' is ambiguous:\n"),
1006 sal_end
= sals_end
[0];
1011 error (_("Junk at end of line specification."));
1013 if (!no_end
&& !dummy_beg
&& !dummy_end
1014 && sal
.symtab
!= sal_end
.symtab
)
1015 error (_("Specified first and last lines are in different files."));
1016 if (dummy_beg
&& dummy_end
)
1017 error (_("Two empty args do not say what lines to list."));
1019 /* If line was specified by address,
1020 first print exactly which line, and which file.
1022 In this case, sal.symtab == 0 means address is outside of all
1023 known source files, not that user failed to give a filename. */
1026 struct gdbarch
*gdbarch
;
1028 if (sal
.symtab
== 0)
1029 error (_("No source file for address %s."),
1030 paddress (get_current_arch (), sal
.pc
));
1032 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1033 sym
= find_pc_function (sal
.pc
);
1035 printf_filtered ("%s is in %s (%s:%d).\n",
1036 paddress (gdbarch
, sal
.pc
),
1037 SYMBOL_PRINT_NAME (sym
),
1038 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1040 printf_filtered ("%s is at %s:%d.\n",
1041 paddress (gdbarch
, sal
.pc
),
1042 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1045 /* If line was not specified by just a line number, and it does not
1046 imply a symtab, it must be an undebuggable symbol which means no
1049 if (!linenum_beg
&& sal
.symtab
== 0)
1050 error (_("No line number known for %s."), arg
);
1052 /* If this command is repeated with RET,
1053 turn it into the no-arg variant. */
1056 set_repeat_arguments ("");
1058 if (dummy_beg
&& sal_end
.symtab
== 0)
1059 error (_("No default source file yet. Do \"help list\"."));
1061 print_source_lines (sal_end
.symtab
,
1062 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1063 sal_end
.line
+ 1, 0);
1064 else if (sal
.symtab
== 0)
1065 error (_("No default source file yet. Do \"help list\"."));
1068 for (int i
= 0; i
< sals
.size (); i
++)
1071 int first_line
= sal
.line
- get_lines_to_list () / 2;
1074 if (sals
.size () > 1)
1075 print_sal_location (sal
);
1076 print_source_lines (sal
.symtab
,
1078 first_line
+ get_lines_to_list (),
1083 print_source_lines (sal
.symtab
, sal
.line
,
1085 ? sal
.line
+ get_lines_to_list ()
1086 : sal_end
.line
+ 1),
1090 /* Subroutine of disassemble_command to simplify it.
1091 Perform the disassembly.
1092 NAME is the name of the function if known, or NULL.
1093 [LOW,HIGH) are the range of addresses to disassemble.
1094 MIXED is non-zero to print source with the assembler. */
1097 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1098 CORE_ADDR low
, CORE_ADDR high
,
1099 gdb_disassembly_flags flags
)
1102 if (!tui_is_window_visible (DISASSEM_WIN
))
1105 printf_filtered ("Dump of assembler code ");
1107 printf_filtered ("for function %s:\n", name
);
1109 printf_filtered ("from %s to %s:\n",
1110 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1112 /* Dump the specified range. */
1113 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1115 printf_filtered ("End of assembler dump.\n");
1116 gdb_flush (gdb_stdout
);
1121 tui_show_assembly (gdbarch
, low
);
1126 /* Subroutine of disassemble_command to simplify it.
1127 Print a disassembly of the current function according to FLAGS. */
1130 disassemble_current_function (gdb_disassembly_flags flags
)
1132 struct frame_info
*frame
;
1133 struct gdbarch
*gdbarch
;
1134 CORE_ADDR low
, high
, pc
;
1137 frame
= get_selected_frame (_("No frame selected."));
1138 gdbarch
= get_frame_arch (frame
);
1139 pc
= get_frame_address_in_block (frame
);
1140 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1141 error (_("No function contains program counter for selected frame."));
1143 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1146 /* FIXME: cagney/2004-02-07: This should be an observer. */
1147 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1149 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1151 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1154 /* Dump a specified section of assembly code.
1158 - dump the assembly code for the function of the current pc
1159 disassemble [/mrs] addr
1160 - dump the assembly code for the function at ADDR
1161 disassemble [/mrs] low,high
1162 disassemble [/mrs] low,+length
1163 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1165 A /m modifier will include source code with the assembly in a
1166 "source centric" view. This view lists only the file of the first insn,
1167 even if other source files are involved (e.g., inlined functions), and
1168 the output is in source order, even with optimized code. This view is
1169 considered deprecated as it hasn't been useful in practice.
1171 A /r modifier will include raw instructions in hex with the assembly.
1173 A /s modifier will include source code with the assembly, like /m, with
1174 two important differences:
1175 1) The output is still in pc address order.
1176 2) File names and contents for all relevant source files are displayed. */
1179 disassemble_command (const char *arg
, int from_tty
)
1181 struct gdbarch
*gdbarch
= get_current_arch ();
1182 CORE_ADDR low
, high
;
1185 gdb_disassembly_flags flags
;
1197 error (_("Missing modifier."));
1199 while (*p
&& ! isspace (*p
))
1204 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1207 flags
|= DISASSEMBLY_RAW_INSN
;
1210 flags
|= DISASSEMBLY_SOURCE
;
1213 error (_("Invalid disassembly modifier."));
1217 p
= skip_spaces (p
);
1220 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1221 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1222 error (_("Cannot specify both /m and /s."));
1226 flags
|= DISASSEMBLY_OMIT_FNAME
;
1227 disassemble_current_function (flags
);
1231 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1237 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1238 error (_("No function contains specified address."));
1240 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1243 /* FIXME: cagney/2004-02-07: This should be an observer. */
1244 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1246 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1247 flags
|= DISASSEMBLY_OMIT_FNAME
;
1251 /* Two arguments. */
1254 p
= skip_spaces (p
);
1260 high
= parse_and_eval_address (p
);
1265 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1269 make_command (const char *arg
, int from_tty
)
1272 shell_escape ("make", from_tty
);
1275 std::string cmd
= std::string ("make ") + arg
;
1277 shell_escape (cmd
.c_str (), from_tty
);
1282 show_user (const char *args
, int from_tty
)
1284 struct cmd_list_element
*c
;
1285 extern struct cmd_list_element
*cmdlist
;
1289 const char *comname
= args
;
1291 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1292 if (!cli_user_command_p (c
))
1293 error (_("Not a user command."));
1294 show_user_1 (c
, "", args
, gdb_stdout
);
1298 for (c
= cmdlist
; c
; c
= c
->next
)
1300 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1301 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1306 /* Search through names of commands and documentations for a certain
1307 regular expression. */
1310 apropos_command (const char *searchstr
, int from_tty
)
1312 if (searchstr
== NULL
)
1313 error (_("REGEXP string is empty"));
1315 compiled_regex
pattern (searchstr
, REG_ICASE
,
1316 _("Error in regular expression"));
1318 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1321 /* Subroutine of alias_command to simplify it.
1322 Return the first N elements of ARGV flattened back to a string
1323 with a space separating each element.
1324 ARGV may not be NULL.
1325 This does not take care of quoting elements in case they contain spaces
1329 argv_to_string (char **argv
, int n
)
1334 gdb_assert (argv
!= NULL
);
1335 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1337 for (i
= 0; i
< n
; ++i
)
1347 /* Subroutine of alias_command to simplify it.
1348 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1351 valid_command_p (const char *command
)
1353 struct cmd_list_element
*c
;
1355 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1357 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1360 /* This is the slightly tricky part.
1361 lookup_cmd_1 will return a pointer to the last part of COMMAND
1362 to match, leaving COMMAND pointing at the remainder. */
1363 while (*command
== ' ' || *command
== '\t')
1365 return *command
== '\0';
1368 /* Called when "alias" was incorrectly used. */
1371 alias_usage_error (void)
1373 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1376 /* Make an alias of an existing command. */
1379 alias_command (const char *args
, int from_tty
)
1381 int i
, alias_argc
, command_argc
;
1382 int abbrev_flag
= 0;
1384 const char *alias
, *command
;
1386 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1387 alias_usage_error ();
1389 equals
= strchr (args
, '=');
1390 std::string
args2 (args
, equals
- args
);
1392 gdb_argv
built_alias_argv (args2
.c_str ());
1393 gdb_argv
command_argv (equals
+ 1);
1395 char **alias_argv
= built_alias_argv
.get ();
1396 while (alias_argv
[0] != NULL
)
1398 if (strcmp (alias_argv
[0], "-a") == 0)
1403 else if (strcmp (alias_argv
[0], "--") == 0)
1412 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1413 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1414 alias_usage_error ();
1416 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1418 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1421 error (_("Invalid command name: %s"), alias_argv
[i
]);
1423 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1427 alias_argc
= countargv (alias_argv
);
1428 command_argc
= command_argv
.count ();
1430 /* COMMAND must exist.
1431 Reconstruct the command to remove any extraneous spaces,
1432 for better error messages. */
1433 std::string
command_string (argv_to_string (command_argv
.get (),
1435 command
= command_string
.c_str ();
1436 if (! valid_command_p (command
))
1437 error (_("Invalid command to alias to: %s"), command
);
1439 /* ALIAS must not exist. */
1440 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1441 alias
= alias_string
.c_str ();
1442 if (valid_command_p (alias
))
1443 error (_("Alias already exists: %s"), alias
);
1445 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1446 Example: alias spe = set print elements
1448 Otherwise ALIAS and COMMAND must have the same number of words,
1449 and every word except the last must match; and the last word of
1450 ALIAS is made an alias of the last word of COMMAND.
1451 Example: alias set print elms = set pr elem
1452 Note that unambiguous abbreviations are allowed. */
1454 if (alias_argc
== 1)
1456 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1457 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1462 const char *alias_prefix
, *command_prefix
;
1463 struct cmd_list_element
*c_alias
, *c_command
;
1465 if (alias_argc
!= command_argc
)
1466 error (_("Mismatched command length between ALIAS and COMMAND."));
1468 /* Create copies of ALIAS and COMMAND without the last word,
1469 and use that to verify the leading elements match. */
1470 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1472 std::string
command_prefix_string (argv_to_string (alias_argv
,
1474 alias_prefix
= alias_prefix_string
.c_str ();
1475 command_prefix
= command_prefix_string
.c_str ();
1477 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1478 /* We've already tried to look up COMMAND. */
1479 gdb_assert (c_command
!= NULL
1480 && c_command
!= (struct cmd_list_element
*) -1);
1481 gdb_assert (c_command
->prefixlist
!= NULL
);
1482 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1483 if (c_alias
!= c_command
)
1484 error (_("ALIAS and COMMAND prefixes do not match."));
1486 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1487 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1488 command_argv
[command_argc
- 1],
1489 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1493 /* Print the file / line number / symbol name of the location
1494 specified by SAL. */
1497 print_sal_location (const symtab_and_line
&sal
)
1499 scoped_restore_current_program_space restore_pspace
;
1500 set_current_program_space (sal
.pspace
);
1502 const char *sym_name
= NULL
;
1503 if (sal
.symbol
!= NULL
)
1504 sym_name
= SYMBOL_PRINT_NAME (sal
.symbol
);
1505 printf_filtered (_("file: \"%s\", line number: %d, symbol: \"%s\"\n"),
1506 symtab_to_filename_for_display (sal
.symtab
),
1507 sal
.line
, sym_name
!= NULL
? sym_name
: "???");
1510 /* Print a list of files and line numbers which a user may choose from
1511 in order to list a function which was specified ambiguously (as
1512 with `list classname::overloadedfuncname', for example). The SALS
1513 array provides the filenames and line numbers. FORMAT is a
1514 printf-style format string used to tell the user what was
1518 ambiguous_line_spec (gdb::array_view
<const symtab_and_line
> sals
,
1519 const char *format
, ...)
1522 va_start (ap
, format
);
1523 vprintf_filtered (format
, ap
);
1526 for (const auto &sal
: sals
)
1527 print_sal_location (sal
);
1530 /* Comparison function for filter_sals. Returns a qsort-style
1534 cmp_symtabs (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1536 const char *dira
= SYMTAB_DIRNAME (sala
.symtab
);
1537 const char *dirb
= SYMTAB_DIRNAME (salb
.symtab
);
1545 else if (dirb
== NULL
)
1552 r
= filename_cmp (dira
, dirb
);
1557 r
= filename_cmp (sala
.symtab
->filename
, salb
.symtab
->filename
);
1561 if (sala
.line
< salb
.line
)
1563 return sala
.line
== salb
.line
? 0 : 1;
1566 /* Remove any SALs that do not match the current program space, or
1567 which appear to be "file:line" duplicates. */
1570 filter_sals (std::vector
<symtab_and_line
> &sals
)
1572 /* Remove SALs that do not match. */
1573 auto from
= std::remove_if (sals
.begin (), sals
.end (),
1574 [&] (const symtab_and_line
&sal
)
1575 { return (sal
.pspace
!= current_program_space
|| sal
.symtab
== NULL
); });
1578 std::sort (sals
.begin (), from
,
1579 [] (const symtab_and_line
&sala
, const symtab_and_line
&salb
)
1580 { return cmp_symtabs (sala
, salb
) < 0; });
1582 from
= std::unique (sals
.begin (), from
,
1583 [&] (const symtab_and_line
&sala
,
1584 const symtab_and_line
&salb
)
1585 { return cmp_symtabs (sala
, salb
) == 0; });
1587 sals
.erase (from
, sals
.end ());
1591 set_debug (const char *arg
, int from_tty
)
1593 printf_unfiltered (_("\"set debug\" must be followed by "
1594 "the name of a debug subcommand.\n"));
1595 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1599 show_debug (const char *args
, int from_tty
)
1601 cmd_show_list (showdebuglist
, from_tty
, "");
1605 init_cmd_lists (void)
1607 max_user_call_depth
= 1024;
1611 show_info_verbose (struct ui_file
*file
, int from_tty
,
1612 struct cmd_list_element
*c
,
1616 fprintf_filtered (file
,
1617 _("Verbose printing of informational messages is %s.\n"),
1620 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1624 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1625 struct cmd_list_element
*c
, const char *value
)
1627 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1632 show_remote_debug (struct ui_file
*file
, int from_tty
,
1633 struct cmd_list_element
*c
, const char *value
)
1635 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1640 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1641 struct cmd_list_element
*c
, const char *value
)
1643 fprintf_filtered (file
,
1644 _("Timeout limit to wait for target to respond is %s.\n"),
1649 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1650 struct cmd_list_element
*c
, const char *value
)
1652 fprintf_filtered (file
,
1653 _("The max call depth for user-defined commands is %s.\n"),
1658 _initialize_cli_cmds (void)
1660 struct cmd_list_element
*c
;
1662 /* Define the classes of commands.
1663 They will appear in the help list in alphabetical order. */
1665 add_cmd ("internals", class_maintenance
, _("\
1666 Maintenance commands.\n\
1667 Some gdb commands are provided just for use by gdb maintainers.\n\
1668 These commands are subject to frequent change, and may not be as\n\
1669 well documented as user commands."),
1671 add_cmd ("obscure", class_obscure
, _("Obscure features."), &cmdlist
);
1672 add_cmd ("aliases", class_alias
,
1673 _("Aliases of other commands."), &cmdlist
);
1674 add_cmd ("user-defined", class_user
, _("\
1675 User-defined commands.\n\
1676 The commands in this class are those defined by the user.\n\
1677 Use the \"define\" command to define a command."), &cmdlist
);
1678 add_cmd ("support", class_support
, _("Support facilities."), &cmdlist
);
1680 add_cmd ("status", class_info
, _("Status inquiries."), &cmdlist
);
1681 add_cmd ("files", class_files
, _("Specifying and examining files."),
1683 add_cmd ("breakpoints", class_breakpoint
,
1684 _("Making program stop at certain points."), &cmdlist
);
1685 add_cmd ("data", class_vars
, _("Examining data."), &cmdlist
);
1686 add_cmd ("stack", class_stack
, _("\
1687 Examining the stack.\n\
1688 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1689 counting from zero for the innermost (currently executing) frame.\n\n\
1690 At any time gdb identifies one frame as the \"selected\" frame.\n\
1691 Variable lookups are done with respect to the selected frame.\n\
1692 When the program being debugged stops, gdb selects the innermost frame.\n\
1693 The commands below can be used to select other frames by number or address."),
1695 add_cmd ("running", class_run
, _("Running the program."), &cmdlist
);
1697 /* Define general commands. */
1699 add_com ("pwd", class_files
, pwd_command
, _("\
1700 Print working directory. This is used for your program as well."));
1702 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1703 Set working directory to DIR for debugger.\n\
1704 The debugger's current working directory specifies where scripts and other\n\
1705 files that can be loaded by GDB are located.\n\
1706 In order to change the inferior's current working directory, the recommended\n\
1707 way is to use the \"set cwd\" command."), &cmdlist
);
1708 set_cmd_completer (c
, filename_completer
);
1710 add_com ("echo", class_support
, echo_command
, _("\
1711 Print a constant string. Give string as argument.\n\
1712 C escape sequences may be used in the argument.\n\
1713 No newline is added at the end of the argument;\n\
1714 use \"\\n\" if you want a newline to be printed.\n\
1715 Since leading and trailing whitespace are ignored in command arguments,\n\
1716 if you want to print some you must use \"\\\" before leading whitespace\n\
1717 to be printed or after trailing whitespace."));
1719 add_setshow_enum_cmd ("script-extension", class_support
,
1720 script_ext_enums
, &script_ext_mode
, _("\
1721 Set mode for script filename extension recognition."), _("\
1722 Show mode for script filename extension recognition."), _("\
1723 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1724 soft == evaluate script according to filename extension, fallback to GDB script"
1726 strict == evaluate script according to filename extension, error if not supported"
1729 show_script_ext_mode
,
1730 &setlist
, &showlist
);
1732 add_com ("quit", class_support
, quit_command
, _("\
1734 Usage: quit [EXPR]\n\
1735 The optional expression EXPR, if present, is evaluated and the result\n\
1736 used as GDB's exit code. The default is zero."));
1737 c
= add_com ("help", class_support
, help_command
,
1738 _("Print list of commands."));
1739 set_cmd_completer (c
, command_completer
);
1740 add_com_alias ("q", "quit", class_support
, 1);
1741 add_com_alias ("h", "help", class_support
, 1);
1743 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1744 Set verbosity."), _("\
1745 Show verbosity."), NULL
,
1748 &setlist
, &showlist
);
1750 add_prefix_cmd ("history", class_support
, set_history
,
1751 _("Generic command for setting command history parameters."),
1752 &sethistlist
, "set history ", 0, &setlist
);
1753 add_prefix_cmd ("history", class_support
, show_history
,
1754 _("Generic command for showing command history parameters."),
1755 &showhistlist
, "show history ", 0, &showlist
);
1757 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1758 Set history expansion on command input."), _("\
1759 Show history expansion on command input."), _("\
1760 Without an argument, history expansion is enabled."),
1762 show_history_expansion_p
,
1763 &sethistlist
, &showhistlist
);
1765 add_prefix_cmd ("info", class_info
, info_command
, _("\
1766 Generic command for showing things about the program being debugged."),
1767 &infolist
, "info ", 0, &cmdlist
);
1768 add_com_alias ("i", "info", class_info
, 1);
1769 add_com_alias ("inf", "info", class_info
, 1);
1771 add_com ("complete", class_obscure
, complete_command
,
1772 _("List the completions for the rest of the line as a command."));
1774 add_prefix_cmd ("show", class_info
, show_command
, _("\
1775 Generic command for showing things about the debugger."),
1776 &showlist
, "show ", 0, &cmdlist
);
1777 /* Another way to get at the same thing. */
1778 add_info ("set", show_command
, _("Show all GDB settings."));
1780 add_cmd ("commands", no_set_class
, show_commands
, _("\
1781 Show the history of commands you typed.\n\
1782 You can supply a command number to start with, or a `+' to start after\n\
1783 the previous command number shown."),
1786 add_cmd ("version", no_set_class
, show_version
,
1787 _("Show what version of GDB this is."), &showlist
);
1789 add_cmd ("configuration", no_set_class
, show_configuration
,
1790 _("Show how GDB was configured at build time."), &showlist
);
1792 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1793 Set debugging of remote protocol."), _("\
1794 Show debugging of remote protocol."), _("\
1795 When enabled, each packet sent or received with the remote target\n\
1799 &setdebuglist
, &showdebuglist
);
1801 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1802 &remote_timeout
, _("\
1803 Set timeout limit to wait for target to respond."), _("\
1804 Show timeout limit to wait for target to respond."), _("\
1805 This value is used to set the time limit for gdb to wait for a response\n\
1808 show_remote_timeout
,
1809 &setlist
, &showlist
);
1811 add_prefix_cmd ("debug", no_class
, set_debug
,
1812 _("Generic command for setting gdb debugging flags"),
1813 &setdebuglist
, "set debug ", 0, &setlist
);
1815 add_prefix_cmd ("debug", no_class
, show_debug
,
1816 _("Generic command for showing gdb debugging flags"),
1817 &showdebuglist
, "show debug ", 0, &showlist
);
1819 c
= add_com ("shell", class_support
, shell_command
, _("\
1820 Execute the rest of the line as a shell command.\n\
1821 With no arguments, run an inferior shell."));
1822 set_cmd_completer (c
, filename_completer
);
1824 c
= add_com ("edit", class_files
, edit_command
, _("\
1825 Edit specified file or function.\n\
1826 With no argument, edits file containing most recent line listed.\n\
1827 Editing targets can be specified in these ways:\n\
1828 FILE:LINENUM, to edit at that line in that file,\n\
1829 FUNCTION, to edit at the beginning of that function,\n\
1830 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1831 *ADDRESS, to edit at the line containing that address.\n\
1832 Uses EDITOR environment variable contents as editor (or ex as default)."));
1834 c
->completer
= location_completer
;
1836 add_com ("list", class_files
, list_command
, _("\
1837 List specified function or line.\n\
1838 With no argument, lists ten more lines after or around previous listing.\n\
1839 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1840 One argument specifies a line, and ten lines are listed around that line.\n\
1841 Two arguments with comma between specify starting and ending lines to list.\n\
1842 Lines can be specified in these ways:\n\
1843 LINENUM, to list around that line in current file,\n\
1844 FILE:LINENUM, to list around that line in that file,\n\
1845 FUNCTION, to list around beginning of that function,\n\
1846 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1847 *ADDRESS, to list around the line containing that address.\n\
1848 With two args, if one is empty, it stands for ten lines away from\n\
1851 By default, when a single location is given, display ten lines.\n\
1852 This can be changed using \"set listsize\", and the current value\n\
1853 can be shown using \"show listsize\"."));
1855 add_com_alias ("l", "list", class_files
, 1);
1858 add_com_alias ("file", "list", class_files
, 1);
1860 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1861 Disassemble a specified section of memory.\n\
1862 Default is the function surrounding the pc of the selected frame.\n\
1864 With a /m modifier, source lines are included (if available).\n\
1865 This view is \"source centric\": the output is in source line order,\n\
1866 regardless of any optimization that is present. Only the main source file\n\
1867 is displayed, not those of, e.g., any inlined functions.\n\
1868 This modifier hasn't proved useful in practice and is deprecated\n\
1871 With a /s modifier, source lines are included (if available).\n\
1872 This differs from /m in two important respects:\n\
1873 - the output is still in pc address order, and\n\
1874 - file names and contents for all relevant source files are displayed.\n\
1876 With a /r modifier, raw instructions in hex are included.\n\
1878 With a single argument, the function surrounding that address is dumped.\n\
1879 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1880 in the form of \"start,end\", or \"start,+length\".\n\
1882 Note that the address is interpreted as an expression, not as a location\n\
1883 like in the \"break\" command.\n\
1884 So, for example, if you want to disassemble function bar in file foo.c\n\
1885 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1886 set_cmd_completer (c
, location_completer
);
1888 add_com_alias ("!", "shell", class_support
, 0);
1890 c
= add_com ("make", class_support
, make_command
, _("\
1891 Run the ``make'' program using the rest of the line as arguments."));
1892 set_cmd_completer (c
, filename_completer
);
1893 add_cmd ("user", no_class
, show_user
, _("\
1894 Show definitions of non-python/scheme user defined commands.\n\
1895 Argument is the name of the user defined command.\n\
1896 With no argument, show definitions of all user defined commands."), &showlist
);
1897 add_com ("apropos", class_support
, apropos_command
,
1898 _("Search for commands matching a REGEXP"));
1900 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1901 &max_user_call_depth
, _("\
1902 Set the max call depth for non-python/scheme user-defined commands."), _("\
1903 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1905 show_max_user_call_depth
,
1906 &setlist
, &showlist
);
1908 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1909 Set tracing of GDB CLI commands."), _("\
1910 Show state of GDB CLI command tracing."), _("\
1911 When 'on', each command is displayed as it is executed."),
1914 &setlist
, &showlist
);
1916 c
= add_com ("alias", class_support
, alias_command
, _("\
1917 Define a new command that is an alias of an existing command.\n\
1918 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1919 ALIAS is the name of the alias command to create.\n\
1920 COMMAND is the command being aliased to.\n\
1921 If \"-a\" is specified, the command is an abbreviation,\n\
1922 and will not appear in help command list output.\n\
1925 Make \"spe\" an alias of \"set print elements\":\n\
1926 alias spe = set print elements\n\
1927 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1928 alias -a set print elms = set print elements"));
1932 init_cli_cmds (void)
1934 struct cmd_list_element
*c
;
1935 char *source_help_text
;
1937 source_help_text
= xstrprintf (_("\
1938 Read commands from a file named FILE.\n\
1940 Usage: source [-s] [-v] FILE\n\
1941 -s: search for the script in the source search path,\n\
1942 even if FILE contains directories.\n\
1943 -v: each command in FILE is echoed as it is executed.\n\
1945 Note that the file \"%s\" is read automatically in this way\n\
1946 when GDB is started."), gdbinit
);
1947 c
= add_cmd ("source", class_support
, source_command
,
1948 source_help_text
, &cmdlist
);
1949 set_cmd_completer (c
, filename_completer
);