3 Copyright (C) 2000-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "arch-utils.h"
22 #include "readline/readline.h"
23 #include "readline/tilde.h"
24 #include "completer.h"
25 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
26 #include "gdb_wait.h" /* For shell escape implementation. */
27 #include "gdb_regex.h" /* Used by apropos_command. */
28 #include "gdb_vfork.h"
30 #include "expression.h"
34 #include "filenames.h" /* For DOSish file names. */
38 #include "tracepoint.h"
39 #include "filestuff.h"
45 #include "cli/cli-decode.h"
46 #include "cli/cli-script.h"
47 #include "cli/cli-setshow.h"
48 #include "cli/cli-cmds.h"
49 #include "cli/cli-utils.h"
51 #include "extension.h"
54 #include "tui/tui.h" /* For tui_active et.al. */
61 /* Prototypes for local command functions */
63 static void complete_command (char *, int);
65 static void echo_command (char *, int);
67 static void pwd_command (char *, int);
69 static void show_version (char *, int);
71 static void help_command (char *, int);
73 static void show_command (char *, int);
75 static void info_command (char *, int);
77 static void show_debug (char *, int);
79 static void set_debug (char *, int);
81 static void show_user (char *, int);
83 static void make_command (char *, int);
85 static void shell_escape (const char *, int);
87 static void edit_command (char *, int);
89 static void list_command (char *, int);
91 /* Prototypes for local utility functions */
93 static void ambiguous_line_spec (struct symtabs_and_lines
*);
95 static void filter_sals (struct symtabs_and_lines
*);
98 /* Limit the call depth of user-defined commands */
99 unsigned int max_user_call_depth
;
101 /* Define all cmd_list_elements. */
103 /* Chain containing all defined commands. */
105 struct cmd_list_element
*cmdlist
;
107 /* Chain containing all defined info subcommands. */
109 struct cmd_list_element
*infolist
;
111 /* Chain containing all defined enable subcommands. */
113 struct cmd_list_element
*enablelist
;
115 /* Chain containing all defined disable subcommands. */
117 struct cmd_list_element
*disablelist
;
119 /* Chain containing all defined stop subcommands. */
121 struct cmd_list_element
*stoplist
;
123 /* Chain containing all defined delete subcommands. */
125 struct cmd_list_element
*deletelist
;
127 /* Chain containing all defined detach subcommands. */
129 struct cmd_list_element
*detachlist
;
131 /* Chain containing all defined kill subcommands. */
133 struct cmd_list_element
*killlist
;
135 /* Chain containing all defined set subcommands */
137 struct cmd_list_element
*setlist
;
139 /* Chain containing all defined unset subcommands */
141 struct cmd_list_element
*unsetlist
;
143 /* Chain containing all defined show subcommands. */
145 struct cmd_list_element
*showlist
;
147 /* Chain containing all defined \"set history\". */
149 struct cmd_list_element
*sethistlist
;
151 /* Chain containing all defined \"show history\". */
153 struct cmd_list_element
*showhistlist
;
155 /* Chain containing all defined \"unset history\". */
157 struct cmd_list_element
*unsethistlist
;
159 /* Chain containing all defined maintenance subcommands. */
161 struct cmd_list_element
*maintenancelist
;
163 /* Chain containing all defined "maintenance info" subcommands. */
165 struct cmd_list_element
*maintenanceinfolist
;
167 /* Chain containing all defined "maintenance print" subcommands. */
169 struct cmd_list_element
*maintenanceprintlist
;
171 /* Chain containing all defined "maintenance check" subcommands. */
173 struct cmd_list_element
*maintenancechecklist
;
175 struct cmd_list_element
*setprintlist
;
177 struct cmd_list_element
*showprintlist
;
179 struct cmd_list_element
*setdebuglist
;
181 struct cmd_list_element
*showdebuglist
;
183 struct cmd_list_element
*setchecklist
;
185 struct cmd_list_element
*showchecklist
;
187 /* Command tracing state. */
189 int source_verbose
= 0;
190 int trace_commands
= 0;
192 /* 'script-extension' option support. */
194 static const char script_ext_off
[] = "off";
195 static const char script_ext_soft
[] = "soft";
196 static const char script_ext_strict
[] = "strict";
198 static const char *const script_ext_enums
[] = {
205 static const char *script_ext_mode
= script_ext_soft
;
207 /* Utility used everywhere when at least one argument is needed and
211 error_no_arg (const char *why
)
213 error (_("Argument required (%s)."), why
);
216 /* The "info" command is defined as a prefix, with allow_unknown = 0.
217 Therefore, its own definition is called only for "info" with no
221 info_command (char *arg
, int from_tty
)
223 printf_unfiltered (_("\"info\" must be followed by "
224 "the name of an info command.\n"));
225 help_list (infolist
, "info ", all_commands
, gdb_stdout
);
228 /* The "show" command with no arguments shows all the settings. */
231 show_command (char *arg
, int from_tty
)
233 cmd_show_list (showlist
, from_tty
, "");
236 /* Provide documentation on command or list given by COMMAND. FROM_TTY
240 help_command (char *command
, int from_tty
)
242 help_cmd (command
, gdb_stdout
);
246 /* Note: The "complete" command is used by Emacs to implement completion.
247 [Is that why this function writes output with *_unfiltered?] */
250 complete_command (char *arg_entry
, int from_tty
)
252 const char *arg
= arg_entry
;
256 if (max_completions
== 0)
258 /* Only print this for non-mi frontends. An MI frontend may not
259 be able to handle this. */
260 if (!current_uiout
->is_mi_like_p ())
262 printf_unfiltered (_("max-completions is zero,"
263 " completion is disabled.\n"));
271 completion_tracker tracker_handle_brkchars
;
272 completion_tracker tracker_handle_completions
;
273 completion_tracker
*tracker
;
275 int quote_char
= '\0';
280 word
= completion_find_completion_word (tracker_handle_brkchars
,
283 /* Completers that provide a custom word point in the
284 handle_brkchars phase also compute their completions then.
285 Completers that leave the completion word handling to readline
286 must be called twice. */
287 if (tracker_handle_brkchars
.use_custom_word_point ())
288 tracker
= &tracker_handle_brkchars
;
291 complete_line (tracker_handle_completions
, word
, arg
, strlen (arg
));
292 tracker
= &tracker_handle_completions
;
295 CATCH (ex
, RETURN_MASK_ALL
)
300 std::string
arg_prefix (arg
, word
- arg
);
302 completion_result result
303 = tracker
->build_completion_result (word
, word
- arg
, strlen (arg
));
305 if (result
.number_matches
!= 0)
307 if (result
.number_matches
== 1)
308 printf_unfiltered ("%s%s\n", arg_prefix
.c_str (), result
.match_list
[0]);
311 result
.sort_match_list ();
313 for (size_t i
= 0; i
< result
.number_matches
; i
++)
315 printf_unfiltered ("%s%s",
317 result
.match_list
[i
+ 1]);
319 printf_unfiltered ("%c", quote_char
);
320 printf_unfiltered ("\n");
324 if (result
.number_matches
== max_completions
)
326 /* ARG_PREFIX and WORD are included in the output so that emacs
327 will include the message in the output. */
328 printf_unfiltered (_("%s%s %s\n"),
329 arg_prefix
.c_str (), word
,
330 get_max_completions_reached_message ());
336 is_complete_command (struct cmd_list_element
*c
)
338 return cmd_cfunc_eq (c
, complete_command
);
342 show_version (char *args
, int from_tty
)
344 print_gdb_version (gdb_stdout
);
345 printf_filtered ("\n");
349 show_configuration (char *args
, int from_tty
)
351 print_gdb_configuration (gdb_stdout
);
354 /* Handle the quit command. */
357 quit_command (char *args
, int from_tty
)
361 /* An optional expression may be used to cause gdb to terminate with
362 the value of that expression. */
365 struct value
*val
= parse_and_eval (args
);
367 exit_code
= (int) value_as_long (val
);
370 if (!quit_confirm ())
371 error (_("Not confirmed."));
373 query_if_trace_running (from_tty
);
375 quit_force (args
? &exit_code
: NULL
, from_tty
);
379 pwd_command (char *args
, int from_tty
)
382 error (_("The \"pwd\" command does not take an argument: %s"), args
);
383 if (! getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
)))
384 error (_("Error finding name of working directory: %s"),
385 safe_strerror (errno
));
387 if (strcmp (gdb_dirbuf
, current_directory
) != 0)
388 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
389 current_directory
, gdb_dirbuf
);
391 printf_unfiltered (_("Working directory %s.\n"), current_directory
);
395 cd_command (char *dir
, int from_tty
)
398 /* Found something other than leading repetitions of "/..". */
401 struct cleanup
*cleanup
;
403 /* If the new directory is absolute, repeat is a no-op; if relative,
404 repeat might be useful but is more likely to be a mistake. */
407 dir
= tilde_expand (dir
!= NULL
? dir
: "~");
408 cleanup
= make_cleanup (xfree
, dir
);
411 perror_with_name (dir
);
413 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
414 /* There's too much mess with DOSish names like "d:", "d:.",
415 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
416 simply get the canonicalized name of the current directory. */
417 dir
= getcwd (gdb_dirbuf
, sizeof (gdb_dirbuf
));
421 if (IS_DIR_SEPARATOR (dir
[len
- 1]))
423 /* Remove the trailing slash unless this is a root directory
424 (including a drive letter on non-Unix systems). */
425 if (!(len
== 1) /* "/" */
426 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
427 && !(len
== 3 && dir
[1] == ':') /* "d:/" */
433 dir
= savestring (dir
, len
);
434 if (IS_ABSOLUTE_PATH (dir
))
435 current_directory
= dir
;
438 if (IS_DIR_SEPARATOR (current_directory
[strlen (current_directory
) - 1]))
439 current_directory
= concat (current_directory
, dir
, (char *)NULL
);
441 current_directory
= concat (current_directory
, SLASH_STRING
,
446 /* Now simplify any occurrences of `.' and `..' in the pathname. */
449 for (p
= current_directory
; *p
;)
451 if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.'
452 && (p
[2] == 0 || IS_DIR_SEPARATOR (p
[2])))
453 memmove (p
, p
+ 2, strlen (p
+ 2) + 1);
454 else if (IS_DIR_SEPARATOR (p
[0]) && p
[1] == '.' && p
[2] == '.'
455 && (p
[3] == 0 || IS_DIR_SEPARATOR (p
[3])))
459 /* Search backwards for the directory just before the "/.."
460 and obliterate it and the "/..". */
463 while (q
!= current_directory
&& !IS_DIR_SEPARATOR (q
[-1]))
466 if (q
== current_directory
)
467 /* current_directory is
468 a relative pathname ("can't happen"--leave it alone). */
472 memmove (q
- 1, p
+ 3, strlen (p
+ 3) + 1);
477 /* We are dealing with leading repetitions of "/..", for
478 example "/../..", which is the Mach super-root. */
488 forget_cached_source_info ();
491 pwd_command ((char *) 0, 1);
493 do_cleanups (cleanup
);
496 /* Show the current value of the 'script-extension' option. */
499 show_script_ext_mode (struct ui_file
*file
, int from_tty
,
500 struct cmd_list_element
*c
, const char *value
)
502 fprintf_filtered (file
,
503 _("Script filename extension recognition is \"%s\".\n"),
507 /* Try to open SCRIPT_FILE.
508 If successful, the full path name is stored in *FULL_PATHP,
509 and the stream is returned.
510 If not successful, return NULL; errno is set for the last file
513 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
514 search for it in the source search path. */
516 gdb::optional
<open_script
>
517 find_and_open_script (const char *script_file
, int search_path
)
520 int search_flags
= OPF_TRY_CWD_FIRST
| OPF_RETURN_REALPATH
;
521 gdb::optional
<open_script
> opened
;
523 gdb::unique_xmalloc_ptr
<char> file (tilde_expand (script_file
));
526 search_flags
|= OPF_SEARCH_IN_PATH
;
528 /* Search for and open 'file' on the search path used for source
529 files. Put the full location in *FULL_PATHP. */
531 fd
= openp (source_path
, search_flags
,
532 file
.get (), O_RDONLY
, &temp_path
);
533 gdb::unique_xmalloc_ptr
<char> full_path (temp_path
);
538 FILE *result
= fdopen (fd
, FOPEN_RT
);
541 int save_errno
= errno
;
547 opened
.emplace (gdb_file_up (result
), std::move (full_path
));
552 /* Load script FILE, which has already been opened as STREAM.
553 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
554 This is provided as FILE may have been found via the source search path.
555 An important thing to note here is that FILE may be a symlink to a file
556 with a different or non-existing suffix, and thus one cannot infer the
557 extension language from FILE_TO_OPEN. */
560 source_script_from_stream (FILE *stream
, const char *file
,
561 const char *file_to_open
)
563 if (script_ext_mode
!= script_ext_off
)
565 const struct extension_language_defn
*extlang
566 = get_ext_lang_of_file (file
);
570 if (ext_lang_present_p (extlang
))
572 script_sourcer_func
*sourcer
573 = ext_lang_script_sourcer (extlang
);
575 gdb_assert (sourcer
!= NULL
);
576 sourcer (extlang
, stream
, file_to_open
);
579 else if (script_ext_mode
== script_ext_soft
)
581 /* Assume the file is a gdb script.
582 This is handled below. */
585 throw_ext_lang_unsupported (extlang
);
589 script_from_file (stream
, file
);
592 /* Worker to perform the "source" command.
594 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
595 search for it in the source search path. */
598 source_script_with_search (const char *file
, int from_tty
, int search_path
)
601 if (file
== NULL
|| *file
== 0)
602 error (_("source command requires file name of file to source."));
604 gdb::optional
<open_script
> opened
= find_and_open_script (file
, search_path
);
607 /* The script wasn't found, or was otherwise inaccessible.
608 If the source command was invoked interactively, throw an
609 error. Otherwise (e.g. if it was invoked by a script),
610 just emit a warning, rather than cause an error. */
612 perror_with_name (file
);
615 perror_warning_with_name (file
);
620 /* The python support reopens the file, so we need to pass full_path here
621 in case the file was found on the search path. It's useful to do this
622 anyway so that error messages show the actual file used. But only do
623 this if we (may have) used search_path, as printing the full path in
624 errors for the non-search case can be more noise than signal. */
625 source_script_from_stream (opened
->stream
.get (), file
,
626 search_path
? opened
->full_path
.get () : file
);
629 /* Wrapper around source_script_with_search to export it to main.c
630 for use in loading .gdbinit scripts. */
633 source_script (const char *file
, int from_tty
)
635 source_script_with_search (file
, from_tty
, 0);
639 source_command (char *args
, int from_tty
)
644 scoped_restore save_source_verbose
= make_scoped_restore (&source_verbose
);
646 /* -v causes the source command to run in verbose mode.
647 -s causes the file to be searched in the source search path,
648 even if the file name contains a '/'.
649 We still have to be able to handle filenames with spaces in a
650 backward compatible way, so buildargv is not appropriate. */
654 while (args
[0] != '\0')
656 /* Make sure leading white space does not break the
658 args
= skip_spaces (args
);
663 if (args
[1] == 'v' && isspace (args
[2]))
667 /* Skip passed -v. */
670 else if (args
[1] == 's' && isspace (args
[2]))
674 /* Skip passed -s. */
681 file
= skip_spaces (args
);
684 source_script_with_search (file
, from_tty
, search_path
);
689 echo_command (char *text
, int from_tty
)
691 const char *p
= text
;
695 while ((c
= *p
++) != '\0')
699 /* \ at end of argument is used after spaces
700 so they won't be lost. */
704 c
= parse_escape (get_current_arch (), &p
);
706 printf_filtered ("%c", c
);
709 printf_filtered ("%c", c
);
712 /* Force this output to appear now. */
714 gdb_flush (gdb_stdout
);
718 shell_escape (const char *arg
, int from_tty
)
720 #if defined(CANT_FORK) || \
721 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
722 /* If ARG is NULL, they want an inferior shell, but `system' just
723 reports if the shell is available when passed a NULL arg. */
724 int rc
= system (arg
? arg
: "");
727 arg
= "inferior shell";
731 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", arg
,
732 safe_strerror (errno
));
733 gdb_flush (gdb_stderr
);
737 fprintf_unfiltered (gdb_stderr
, "%s exited with status %d\n", arg
, rc
);
738 gdb_flush (gdb_stderr
);
741 /* Make sure to return to the directory GDB thinks it is, in case
742 the shell command we just ran changed it. */
743 chdir (current_directory
);
745 #else /* Can fork. */
748 if ((pid
= vfork ()) == 0)
750 const char *p
, *user_shell
;
754 if ((user_shell
= (char *) getenv ("SHELL")) == NULL
)
755 user_shell
= "/bin/sh";
757 /* Get the name of the shell for arg0. */
758 p
= lbasename (user_shell
);
761 execl (user_shell
, p
, (char *) 0);
763 execl (user_shell
, p
, "-c", arg
, (char *) 0);
765 fprintf_unfiltered (gdb_stderr
, "Cannot execute %s: %s\n", user_shell
,
766 safe_strerror (errno
));
767 gdb_flush (gdb_stderr
);
772 waitpid (pid
, &status
, 0);
774 error (_("Fork failed"));
775 #endif /* Can fork. */
778 /* Implementation of the "shell" command. */
781 shell_command (char *arg
, int from_tty
)
783 shell_escape (arg
, from_tty
);
787 edit_command (char *arg
, int from_tty
)
789 struct symtabs_and_lines sals
;
790 struct symtab_and_line sal
;
796 /* Pull in the current default source line if necessary. */
799 set_default_source_symtab_and_line ();
800 sal
= get_current_source_symtab_and_line ();
803 /* Bare "edit" edits file with present line. */
808 error (_("No default source file yet."));
809 sal
.line
+= get_lines_to_list () / 2;
815 /* Now should only be one argument -- decode it in SAL. */
817 event_location_up location
= string_to_event_location (&arg1
,
819 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
830 ambiguous_line_spec (&sals
);
839 error (_("Junk at end of line specification."));
841 /* If line was specified by address, first print exactly which
842 line, and which file. In this case, sal.symtab == 0 means
843 address is outside of all known source files, not that user
844 failed to give a filename. */
847 struct gdbarch
*gdbarch
;
850 error (_("No source file for address %s."),
851 paddress (get_current_arch (), sal
.pc
));
853 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
854 sym
= find_pc_function (sal
.pc
);
856 printf_filtered ("%s is in %s (%s:%d).\n",
857 paddress (gdbarch
, sal
.pc
),
858 SYMBOL_PRINT_NAME (sym
),
859 symtab_to_filename_for_display (sal
.symtab
),
862 printf_filtered ("%s is at %s:%d.\n",
863 paddress (gdbarch
, sal
.pc
),
864 symtab_to_filename_for_display (sal
.symtab
),
868 /* If what was given does not imply a symtab, it must be an
869 undebuggable symbol which means no source code. */
872 error (_("No line number known for %s."), arg
);
875 if ((editor
= (char *) getenv ("EDITOR")) == NULL
)
878 fn
= symtab_to_fullname (sal
.symtab
);
880 /* Quote the file name, in case it has whitespace or other special
882 p
= xstrprintf ("%s +%d \"%s\"", editor
, sal
.line
, fn
);
883 shell_escape (p
, from_tty
);
888 list_command (char *arg
, int from_tty
)
890 struct symtabs_and_lines sals
, sals_end
;
891 struct symtab_and_line sal
= { 0 };
892 struct symtab_and_line sal_end
= { 0 };
893 struct symtab_and_line cursal
= { 0 };
902 /* Pull in the current default source line if necessary. */
903 if (arg
== NULL
|| ((arg
[0] == '+' || arg
[0] == '-') && arg
[1] == '\0'))
905 set_default_source_symtab_and_line ();
906 cursal
= get_current_source_symtab_and_line ();
908 /* If this is the first "list" since we've set the current
909 source line, center the listing around that line. */
910 if (get_first_line_listed () == 0)
914 first
= std::max (cursal
.line
- get_lines_to_list () / 2, 1);
916 /* A small special case --- if listing backwards, and we
917 should list only one line, list the preceding line,
918 instead of the exact line we've just shown after e.g.,
919 stopping for a breakpoint. */
920 if (arg
!= NULL
&& arg
[0] == '-'
921 && get_lines_to_list () == 1 && first
> 1)
924 print_source_lines (cursal
.symtab
, first
,
925 first
+ get_lines_to_list (), 0);
928 /* "l" or "l +" lists next ten lines. */
929 else if (arg
== NULL
|| arg
[0] == '+')
930 print_source_lines (cursal
.symtab
, cursal
.line
,
931 cursal
.line
+ get_lines_to_list (), 0);
933 /* "l -" lists previous ten lines, the ones before the ten just
935 else if (arg
[0] == '-')
937 if (get_first_line_listed () == 1)
938 error (_("Already at the start of %s."),
939 symtab_to_filename_for_display (cursal
.symtab
));
940 print_source_lines (cursal
.symtab
,
941 std::max (get_first_line_listed ()
942 - get_lines_to_list (), 1),
943 get_first_line_listed (), 0);
949 /* Now if there is only one argument, decode it in SAL
951 If there are two arguments, decode them in SAL and SAL_END
952 and clear NO_END; however, if one of the arguments is blank,
953 set DUMMY_BEG or DUMMY_END to record that fact. */
955 if (!have_full_symbols () && !have_partial_symbols ())
956 error (_("No symbol table is loaded. Use the \"file\" command."));
963 event_location_up location
= string_to_event_location (&arg1
,
965 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
976 ambiguous_line_spec (&sals
);
985 /* Record whether the BEG arg is all digits. */
987 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
988 linenum_beg
= (p
== arg1
);
990 while (*arg1
== ' ' || *arg1
== '\t')
996 while (*arg1
== ' ' || *arg1
== '\t')
1002 event_location_up location
1003 = string_to_event_location (&arg1
, current_language
);
1005 sals_end
= decode_line_1 (location
.get (),
1006 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1008 sals_end
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1009 NULL
, sal
.symtab
, sal
.line
);
1011 filter_sals (&sals_end
);
1012 if (sals_end
.nelts
== 0)
1014 if (sals_end
.nelts
> 1)
1016 ambiguous_line_spec (&sals_end
);
1017 xfree (sals_end
.sals
);
1020 sal_end
= sals_end
.sals
[0];
1021 xfree (sals_end
.sals
);
1026 error (_("Junk at end of line specification."));
1028 if (!no_end
&& !dummy_beg
&& !dummy_end
1029 && sal
.symtab
!= sal_end
.symtab
)
1030 error (_("Specified start and end are in different files."));
1031 if (dummy_beg
&& dummy_end
)
1032 error (_("Two empty args do not say what lines to list."));
1034 /* If line was specified by address,
1035 first print exactly which line, and which file.
1037 In this case, sal.symtab == 0 means address is outside of all
1038 known source files, not that user failed to give a filename. */
1041 struct gdbarch
*gdbarch
;
1043 if (sal
.symtab
== 0)
1044 error (_("No source file for address %s."),
1045 paddress (get_current_arch (), sal
.pc
));
1047 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1048 sym
= find_pc_function (sal
.pc
);
1050 printf_filtered ("%s is in %s (%s:%d).\n",
1051 paddress (gdbarch
, sal
.pc
),
1052 SYMBOL_PRINT_NAME (sym
),
1053 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1055 printf_filtered ("%s is at %s:%d.\n",
1056 paddress (gdbarch
, sal
.pc
),
1057 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1060 /* If line was not specified by just a line number, and it does not
1061 imply a symtab, it must be an undebuggable symbol which means no
1064 if (!linenum_beg
&& sal
.symtab
== 0)
1065 error (_("No line number known for %s."), arg
);
1067 /* If this command is repeated with RET,
1068 turn it into the no-arg variant. */
1073 if (dummy_beg
&& sal_end
.symtab
== 0)
1074 error (_("No default source file yet. Do \"help list\"."));
1076 print_source_lines (sal_end
.symtab
,
1077 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1078 sal_end
.line
+ 1, 0);
1079 else if (sal
.symtab
== 0)
1080 error (_("No default source file yet. Do \"help list\"."));
1083 int first_line
= sal
.line
- get_lines_to_list () / 2;
1085 if (first_line
< 1) first_line
= 1;
1087 print_source_lines (sal
.symtab
,
1089 first_line
+ get_lines_to_list (),
1093 print_source_lines (sal
.symtab
, sal
.line
,
1095 ? sal
.line
+ get_lines_to_list ()
1096 : sal_end
.line
+ 1),
1100 /* Subroutine of disassemble_command to simplify it.
1101 Perform the disassembly.
1102 NAME is the name of the function if known, or NULL.
1103 [LOW,HIGH) are the range of addresses to disassemble.
1104 MIXED is non-zero to print source with the assembler. */
1107 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1108 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1111 if (!tui_is_window_visible (DISASSEM_WIN
))
1114 printf_filtered ("Dump of assembler code ");
1116 printf_filtered ("for function %s:\n", name
);
1118 printf_filtered ("from %s to %s:\n",
1119 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1121 /* Dump the specified range. */
1122 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1124 printf_filtered ("End of assembler dump.\n");
1125 gdb_flush (gdb_stdout
);
1130 tui_show_assembly (gdbarch
, low
);
1135 /* Subroutine of disassemble_command to simplify it.
1136 Print a disassembly of the current function according to FLAGS. */
1139 disassemble_current_function (int flags
)
1141 struct frame_info
*frame
;
1142 struct gdbarch
*gdbarch
;
1143 CORE_ADDR low
, high
, pc
;
1146 frame
= get_selected_frame (_("No frame selected."));
1147 gdbarch
= get_frame_arch (frame
);
1148 pc
= get_frame_address_in_block (frame
);
1149 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1150 error (_("No function contains program counter for selected frame."));
1152 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1155 /* FIXME: cagney/2004-02-07: This should be an observer. */
1156 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1158 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1160 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1163 /* Dump a specified section of assembly code.
1167 - dump the assembly code for the function of the current pc
1168 disassemble [/mrs] addr
1169 - dump the assembly code for the function at ADDR
1170 disassemble [/mrs] low,high
1171 disassemble [/mrs] low,+length
1172 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1174 A /m modifier will include source code with the assembly in a
1175 "source centric" view. This view lists only the file of the first insn,
1176 even if other source files are involved (e.g., inlined functions), and
1177 the output is in source order, even with optimized code. This view is
1178 considered deprecated as it hasn't been useful in practice.
1180 A /r modifier will include raw instructions in hex with the assembly.
1182 A /s modifier will include source code with the assembly, like /m, with
1183 two important differences:
1184 1) The output is still in pc address order.
1185 2) File names and contents for all relevant source files are displayed. */
1188 disassemble_command (char *arg
, int from_tty
)
1190 struct gdbarch
*gdbarch
= get_current_arch ();
1191 CORE_ADDR low
, high
;
1206 error (_("Missing modifier."));
1208 while (*p
&& ! isspace (*p
))
1213 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1216 flags
|= DISASSEMBLY_RAW_INSN
;
1219 flags
|= DISASSEMBLY_SOURCE
;
1222 error (_("Invalid disassembly modifier."));
1226 p
= skip_spaces_const (p
);
1229 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1230 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1231 error (_("Cannot specify both /m and /s."));
1235 flags
|= DISASSEMBLY_OMIT_FNAME
;
1236 disassemble_current_function (flags
);
1240 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1246 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1247 error (_("No function contains specified address."));
1249 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1252 /* FIXME: cagney/2004-02-07: This should be an observer. */
1253 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1255 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1256 flags
|= DISASSEMBLY_OMIT_FNAME
;
1260 /* Two arguments. */
1263 p
= skip_spaces_const (p
);
1269 high
= parse_and_eval_address (p
);
1274 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1278 make_command (char *arg
, int from_tty
)
1281 shell_escape ("make", from_tty
);
1284 std::string cmd
= std::string ("make ") + arg
;
1286 shell_escape (cmd
.c_str (), from_tty
);
1291 show_user (char *args
, int from_tty
)
1293 struct cmd_list_element
*c
;
1294 extern struct cmd_list_element
*cmdlist
;
1298 const char *comname
= args
;
1300 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1301 if (!cli_user_command_p (c
))
1302 error (_("Not a user command."));
1303 show_user_1 (c
, "", args
, gdb_stdout
);
1307 for (c
= cmdlist
; c
; c
= c
->next
)
1309 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1310 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1315 /* Search through names of commands and documentations for a certain
1316 regular expression. */
1319 apropos_command (char *searchstr
, int from_tty
)
1321 if (searchstr
== NULL
)
1322 error (_("REGEXP string is empty"));
1324 compiled_regex
pattern (searchstr
, REG_ICASE
,
1325 _("Error in regular expression"));
1327 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1330 /* Subroutine of alias_command to simplify it.
1331 Return the first N elements of ARGV flattened back to a string
1332 with a space separating each element.
1333 ARGV may not be NULL.
1334 This does not take care of quoting elements in case they contain spaces
1338 argv_to_string (char **argv
, int n
)
1343 gdb_assert (argv
!= NULL
);
1344 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1346 for (i
= 0; i
< n
; ++i
)
1356 /* Subroutine of alias_command to simplify it.
1357 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1360 valid_command_p (const char *command
)
1362 struct cmd_list_element
*c
;
1364 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1366 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1369 /* This is the slightly tricky part.
1370 lookup_cmd_1 will return a pointer to the last part of COMMAND
1371 to match, leaving COMMAND pointing at the remainder. */
1372 while (*command
== ' ' || *command
== '\t')
1374 return *command
== '\0';
1377 /* Called when "alias" was incorrectly used. */
1380 alias_usage_error (void)
1382 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1385 /* Make an alias of an existing command. */
1388 alias_command (char *args
, int from_tty
)
1390 int i
, alias_argc
, command_argc
;
1391 int abbrev_flag
= 0;
1393 const char *alias
, *command
;
1395 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1396 alias_usage_error ();
1398 equals
= strchr (args
, '=');
1399 std::string
args2 (args
, equals
- args
);
1401 gdb_argv
built_alias_argv (args2
.c_str ());
1402 gdb_argv
command_argv (equals
+ 1);
1404 char **alias_argv
= built_alias_argv
.get ();
1405 while (alias_argv
[0] != NULL
)
1407 if (strcmp (alias_argv
[0], "-a") == 0)
1412 else if (strcmp (alias_argv
[0], "--") == 0)
1421 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1422 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1423 alias_usage_error ();
1425 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1427 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1430 error (_("Invalid command name: %s"), alias_argv
[i
]);
1432 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1436 alias_argc
= countargv (alias_argv
);
1437 command_argc
= command_argv
.count ();
1439 /* COMMAND must exist.
1440 Reconstruct the command to remove any extraneous spaces,
1441 for better error messages. */
1442 std::string
command_string (argv_to_string (command_argv
.get (),
1444 command
= command_string
.c_str ();
1445 if (! valid_command_p (command
))
1446 error (_("Invalid command to alias to: %s"), command
);
1448 /* ALIAS must not exist. */
1449 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1450 alias
= alias_string
.c_str ();
1451 if (valid_command_p (alias
))
1452 error (_("Alias already exists: %s"), alias
);
1454 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1455 Example: alias spe = set print elements
1457 Otherwise ALIAS and COMMAND must have the same number of words,
1458 and every word except the last must match; and the last word of
1459 ALIAS is made an alias of the last word of COMMAND.
1460 Example: alias set print elms = set pr elem
1461 Note that unambiguous abbreviations are allowed. */
1463 if (alias_argc
== 1)
1465 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1466 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1471 const char *alias_prefix
, *command_prefix
;
1472 struct cmd_list_element
*c_alias
, *c_command
;
1474 if (alias_argc
!= command_argc
)
1475 error (_("Mismatched command length between ALIAS and COMMAND."));
1477 /* Create copies of ALIAS and COMMAND without the last word,
1478 and use that to verify the leading elements match. */
1479 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1481 std::string
command_prefix_string (argv_to_string (alias_argv
,
1483 alias_prefix
= alias_prefix_string
.c_str ();
1484 command_prefix
= command_prefix_string
.c_str ();
1486 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1487 /* We've already tried to look up COMMAND. */
1488 gdb_assert (c_command
!= NULL
1489 && c_command
!= (struct cmd_list_element
*) -1);
1490 gdb_assert (c_command
->prefixlist
!= NULL
);
1491 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1492 if (c_alias
!= c_command
)
1493 error (_("ALIAS and COMMAND prefixes do not match."));
1495 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1496 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1497 command_argv
[command_argc
- 1],
1498 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1502 /* Print a list of files and line numbers which a user may choose from
1503 in order to list a function which was specified ambiguously (as
1504 with `list classname::overloadedfuncname', for example). The
1505 vector in SALS provides the filenames and line numbers. */
1508 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1512 for (i
= 0; i
< sals
->nelts
; ++i
)
1513 printf_filtered (_("file: \"%s\", line number: %d\n"),
1514 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1515 sals
->sals
[i
].line
);
1518 /* Sort function for filter_sals. */
1521 compare_symtabs (const void *a
, const void *b
)
1523 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1524 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1525 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1526 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1534 else if (dirb
== NULL
)
1541 r
= filename_cmp (dira
, dirb
);
1546 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1550 if (sala
->line
< salb
->line
)
1552 return sala
->line
== salb
->line
? 0 : 1;
1555 /* Remove any SALs that do not match the current program space, or
1556 which appear to be "file:line" duplicates. */
1559 filter_sals (struct symtabs_and_lines
*sals
)
1564 for (i
= 0; i
< sals
->nelts
; ++i
)
1566 if (sals
->sals
[i
].pspace
== current_program_space
1567 && sals
->sals
[i
].symtab
!= NULL
)
1569 sals
->sals
[out
] = sals
->sals
[i
];
1575 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1580 for (i
= 1; i
< sals
->nelts
; ++i
)
1582 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1584 /* Symtabs differ. */
1585 sals
->sals
[out
] = sals
->sals
[i
];
1591 if (sals
->nelts
== 0)
1601 set_debug (char *arg
, int from_tty
)
1603 printf_unfiltered (_("\"set debug\" must be followed by "
1604 "the name of a debug subcommand.\n"));
1605 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1609 show_debug (char *args
, int from_tty
)
1611 cmd_show_list (showdebuglist
, from_tty
, "");
1615 init_cmd_lists (void)
1617 max_user_call_depth
= 1024;
1621 show_info_verbose (struct ui_file
*file
, int from_tty
,
1622 struct cmd_list_element
*c
,
1626 fprintf_filtered (file
,
1627 _("Verbose printing of informational messages is %s.\n"),
1630 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1634 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1635 struct cmd_list_element
*c
, const char *value
)
1637 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1642 show_remote_debug (struct ui_file
*file
, int from_tty
,
1643 struct cmd_list_element
*c
, const char *value
)
1645 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1650 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1651 struct cmd_list_element
*c
, const char *value
)
1653 fprintf_filtered (file
,
1654 _("Timeout limit to wait for target to respond is %s.\n"),
1659 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1660 struct cmd_list_element
*c
, const char *value
)
1662 fprintf_filtered (file
,
1663 _("The max call depth for user-defined commands is %s.\n"),
1669 initialize_file_ftype _initialize_cli_cmds
;
1672 _initialize_cli_cmds (void)
1674 struct cmd_list_element
*c
;
1676 /* Define the classes of commands.
1677 They will appear in the help list in alphabetical order. */
1679 add_cmd ("internals", class_maintenance
, NULL
, _("\
1680 Maintenance commands.\n\
1681 Some gdb commands are provided just for use by gdb maintainers.\n\
1682 These commands are subject to frequent change, and may not be as\n\
1683 well documented as user commands."),
1685 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1686 add_cmd ("aliases", class_alias
, NULL
,
1687 _("Aliases of other commands."), &cmdlist
);
1688 add_cmd ("user-defined", class_user
, NULL
, _("\
1689 User-defined commands.\n\
1690 The commands in this class are those defined by the user.\n\
1691 Use the \"define\" command to define a command."), &cmdlist
);
1692 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1694 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1695 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1697 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1698 _("Making program stop at certain points."), &cmdlist
);
1699 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1700 add_cmd ("stack", class_stack
, NULL
, _("\
1701 Examining the stack.\n\
1702 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1703 counting from zero for the innermost (currently executing) frame.\n\n\
1704 At any time gdb identifies one frame as the \"selected\" frame.\n\
1705 Variable lookups are done with respect to the selected frame.\n\
1706 When the program being debugged stops, gdb selects the innermost frame.\n\
1707 The commands below can be used to select other frames by number or address."),
1709 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1711 /* Define general commands. */
1713 add_com ("pwd", class_files
, pwd_command
, _("\
1714 Print working directory. This is used for your program as well."));
1716 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1717 Set working directory to DIR for debugger and program being debugged.\n\
1718 The change does not take effect for the program being debugged\n\
1719 until the next time it is started."), &cmdlist
);
1720 set_cmd_completer (c
, filename_completer
);
1722 add_com ("echo", class_support
, echo_command
, _("\
1723 Print a constant string. Give string as argument.\n\
1724 C escape sequences may be used in the argument.\n\
1725 No newline is added at the end of the argument;\n\
1726 use \"\\n\" if you want a newline to be printed.\n\
1727 Since leading and trailing whitespace are ignored in command arguments,\n\
1728 if you want to print some you must use \"\\\" before leading whitespace\n\
1729 to be printed or after trailing whitespace."));
1731 add_setshow_enum_cmd ("script-extension", class_support
,
1732 script_ext_enums
, &script_ext_mode
, _("\
1733 Set mode for script filename extension recognition."), _("\
1734 Show mode for script filename extension recognition."), _("\
1735 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1736 soft == evaluate script according to filename extension, fallback to GDB script"
1738 strict == evaluate script according to filename extension, error if not supported"
1741 show_script_ext_mode
,
1742 &setlist
, &showlist
);
1744 add_com ("quit", class_support
, quit_command
, _("\
1746 Usage: quit [EXPR]\n\
1747 The optional expression EXPR, if present, is evaluated and the result\n\
1748 used as GDB's exit code. The default is zero."));
1749 c
= add_com ("help", class_support
, help_command
,
1750 _("Print list of commands."));
1751 set_cmd_completer (c
, command_completer
);
1752 add_com_alias ("q", "quit", class_support
, 1);
1753 add_com_alias ("h", "help", class_support
, 1);
1755 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1756 Set verbosity."), _("\
1757 Show verbosity."), NULL
,
1760 &setlist
, &showlist
);
1762 add_prefix_cmd ("history", class_support
, set_history
,
1763 _("Generic command for setting command history parameters."),
1764 &sethistlist
, "set history ", 0, &setlist
);
1765 add_prefix_cmd ("history", class_support
, show_history
,
1766 _("Generic command for showing command history parameters."),
1767 &showhistlist
, "show history ", 0, &showlist
);
1769 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1770 Set history expansion on command input."), _("\
1771 Show history expansion on command input."), _("\
1772 Without an argument, history expansion is enabled."),
1774 show_history_expansion_p
,
1775 &sethistlist
, &showhistlist
);
1777 add_prefix_cmd ("info", class_info
, info_command
, _("\
1778 Generic command for showing things about the program being debugged."),
1779 &infolist
, "info ", 0, &cmdlist
);
1780 add_com_alias ("i", "info", class_info
, 1);
1781 add_com_alias ("inf", "info", class_info
, 1);
1783 add_com ("complete", class_obscure
, complete_command
,
1784 _("List the completions for the rest of the line as a command."));
1786 add_prefix_cmd ("show", class_info
, show_command
, _("\
1787 Generic command for showing things about the debugger."),
1788 &showlist
, "show ", 0, &cmdlist
);
1789 /* Another way to get at the same thing. */
1790 add_info ("set", show_command
, _("Show all GDB settings."));
1792 add_cmd ("commands", no_set_class
, show_commands
, _("\
1793 Show the history of commands you typed.\n\
1794 You can supply a command number to start with, or a `+' to start after\n\
1795 the previous command number shown."),
1798 add_cmd ("version", no_set_class
, show_version
,
1799 _("Show what version of GDB this is."), &showlist
);
1801 add_cmd ("configuration", no_set_class
, show_configuration
,
1802 _("Show how GDB was configured at build time."), &showlist
);
1804 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1805 Set debugging of remote protocol."), _("\
1806 Show debugging of remote protocol."), _("\
1807 When enabled, each packet sent or received with the remote target\n\
1811 &setdebuglist
, &showdebuglist
);
1813 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1814 &remote_timeout
, _("\
1815 Set timeout limit to wait for target to respond."), _("\
1816 Show timeout limit to wait for target to respond."), _("\
1817 This value is used to set the time limit for gdb to wait for a response\n\
1820 show_remote_timeout
,
1821 &setlist
, &showlist
);
1823 add_prefix_cmd ("debug", no_class
, set_debug
,
1824 _("Generic command for setting gdb debugging flags"),
1825 &setdebuglist
, "set debug ", 0, &setlist
);
1827 add_prefix_cmd ("debug", no_class
, show_debug
,
1828 _("Generic command for showing gdb debugging flags"),
1829 &showdebuglist
, "show debug ", 0, &showlist
);
1831 c
= add_com ("shell", class_support
, shell_command
, _("\
1832 Execute the rest of the line as a shell command.\n\
1833 With no arguments, run an inferior shell."));
1834 set_cmd_completer (c
, filename_completer
);
1836 c
= add_com ("edit", class_files
, edit_command
, _("\
1837 Edit specified file or function.\n\
1838 With no argument, edits file containing most recent line listed.\n\
1839 Editing targets can be specified in these ways:\n\
1840 FILE:LINENUM, to edit at that line in that file,\n\
1841 FUNCTION, to edit at the beginning of that function,\n\
1842 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1843 *ADDRESS, to edit at the line containing that address.\n\
1844 Uses EDITOR environment variable contents as editor (or ex as default)."));
1846 c
->completer
= location_completer
;
1848 add_com ("list", class_files
, list_command
, _("\
1849 List specified function or line.\n\
1850 With no argument, lists ten more lines after or around previous listing.\n\
1851 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1852 One argument specifies a line, and ten lines are listed around that line.\n\
1853 Two arguments with comma between specify starting and ending lines to list.\n\
1854 Lines can be specified in these ways:\n\
1855 LINENUM, to list around that line in current file,\n\
1856 FILE:LINENUM, to list around that line in that file,\n\
1857 FUNCTION, to list around beginning of that function,\n\
1858 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1859 *ADDRESS, to list around the line containing that address.\n\
1860 With two args, if one is empty, it stands for ten lines away from\n\
1863 By default, when a single location is given, display ten lines.\n\
1864 This can be changed using \"set listsize\", and the current value\n\
1865 can be shown using \"show listsize\"."));
1867 add_com_alias ("l", "list", class_files
, 1);
1870 add_com_alias ("file", "list", class_files
, 1);
1872 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1873 Disassemble a specified section of memory.\n\
1874 Default is the function surrounding the pc of the selected frame.\n\
1876 With a /m modifier, source lines are included (if available).\n\
1877 This view is \"source centric\": the output is in source line order,\n\
1878 regardless of any optimization that is present. Only the main source file\n\
1879 is displayed, not those of, e.g., any inlined functions.\n\
1880 This modifier hasn't proved useful in practice and is deprecated\n\
1883 With a /s modifier, source lines are included (if available).\n\
1884 This differs from /m in two important respects:\n\
1885 - the output is still in pc address order, and\n\
1886 - file names and contents for all relevant source files are displayed.\n\
1888 With a /r modifier, raw instructions in hex are included.\n\
1890 With a single argument, the function surrounding that address is dumped.\n\
1891 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1892 in the form of \"start,end\", or \"start,+length\".\n\
1894 Note that the address is interpreted as an expression, not as a location\n\
1895 like in the \"break\" command.\n\
1896 So, for example, if you want to disassemble function bar in file foo.c\n\
1897 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1898 set_cmd_completer (c
, location_completer
);
1900 add_com_alias ("!", "shell", class_support
, 0);
1902 c
= add_com ("make", class_support
, make_command
, _("\
1903 Run the ``make'' program using the rest of the line as arguments."));
1904 set_cmd_completer (c
, filename_completer
);
1905 add_cmd ("user", no_class
, show_user
, _("\
1906 Show definitions of non-python/scheme user defined commands.\n\
1907 Argument is the name of the user defined command.\n\
1908 With no argument, show definitions of all user defined commands."), &showlist
);
1909 add_com ("apropos", class_support
, apropos_command
,
1910 _("Search for commands matching a REGEXP"));
1912 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1913 &max_user_call_depth
, _("\
1914 Set the max call depth for non-python/scheme user-defined commands."), _("\
1915 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1917 show_max_user_call_depth
,
1918 &setlist
, &showlist
);
1920 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1921 Set tracing of GDB CLI commands."), _("\
1922 Show state of GDB CLI command tracing."), _("\
1923 When 'on', each command is displayed as it is executed."),
1926 &setlist
, &showlist
);
1928 c
= add_com ("alias", class_support
, alias_command
, _("\
1929 Define a new command that is an alias of an existing command.\n\
1930 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1931 ALIAS is the name of the alias command to create.\n\
1932 COMMAND is the command being aliased to.\n\
1933 If \"-a\" is specified, the command is an abbreviation,\n\
1934 and will not appear in help command list output.\n\
1937 Make \"spe\" an alias of \"set print elements\":\n\
1938 alias spe = set print elements\n\
1939 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1940 alias -a set print elms = set print elements"));
1944 init_cli_cmds (void)
1946 struct cmd_list_element
*c
;
1947 char *source_help_text
;
1949 source_help_text
= xstrprintf (_("\
1950 Read commands from a file named FILE.\n\
1952 Usage: source [-s] [-v] FILE\n\
1953 -s: search for the script in the source search path,\n\
1954 even if FILE contains directories.\n\
1955 -v: each command in FILE is echoed as it is executed.\n\
1957 Note that the file \"%s\" is read automatically in this way\n\
1958 when GDB is started."), gdbinit
);
1959 c
= add_cmd ("source", class_support
, source_command
,
1960 source_help_text
, &cmdlist
);
1961 set_cmd_completer (c
, filename_completer
);