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."));
965 event_location_up location
= string_to_event_location (&arg1
,
967 sals
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
980 /* Record whether the BEG arg is all digits. */
982 for (p
= arg
; p
!= arg1
&& *p
>= '0' && *p
<= '9'; p
++);
983 linenum_beg
= (p
== arg1
);
985 while (*arg1
== ' ' || *arg1
== '\t')
992 ambiguous_line_spec (&sals
);
997 while (*arg1
== ' ' || *arg1
== '\t')
1003 event_location_up location
1004 = string_to_event_location (&arg1
, current_language
);
1006 sals_end
= decode_line_1 (location
.get (),
1007 DECODE_LINE_LIST_MODE
, NULL
, NULL
, 0);
1009 sals_end
= decode_line_1 (location
.get (), DECODE_LINE_LIST_MODE
,
1010 NULL
, sal
.symtab
, sal
.line
);
1012 filter_sals (&sals_end
);
1013 if (sals_end
.nelts
== 0)
1018 if (sals_end
.nelts
> 1)
1020 ambiguous_line_spec (&sals_end
);
1021 xfree (sals_end
.sals
);
1025 sal_end
= sals_end
.sals
[0];
1026 xfree (sals_end
.sals
);
1031 error (_("Junk at end of line specification."));
1033 if (!no_end
&& !dummy_beg
&& !dummy_end
1034 && sal
.symtab
!= sal_end
.symtab
)
1035 error (_("Specified start and end are in different files."));
1036 if (dummy_beg
&& dummy_end
)
1037 error (_("Two empty args do not say what lines to list."));
1039 /* If line was specified by address,
1040 first print exactly which line, and which file.
1042 In this case, sal.symtab == 0 means address is outside of all
1043 known source files, not that user failed to give a filename. */
1046 struct gdbarch
*gdbarch
;
1048 if (sal
.symtab
== 0)
1049 error (_("No source file for address %s."),
1050 paddress (get_current_arch (), sal
.pc
));
1052 gdbarch
= get_objfile_arch (SYMTAB_OBJFILE (sal
.symtab
));
1053 sym
= find_pc_function (sal
.pc
);
1055 printf_filtered ("%s is in %s (%s:%d).\n",
1056 paddress (gdbarch
, sal
.pc
),
1057 SYMBOL_PRINT_NAME (sym
),
1058 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1060 printf_filtered ("%s is at %s:%d.\n",
1061 paddress (gdbarch
, sal
.pc
),
1062 symtab_to_filename_for_display (sal
.symtab
), sal
.line
);
1065 /* If line was not specified by just a line number, and it does not
1066 imply a symtab, it must be an undebuggable symbol which means no
1069 if (!linenum_beg
&& sal
.symtab
== 0)
1070 error (_("No line number known for %s."), arg
);
1072 /* If this command is repeated with RET,
1073 turn it into the no-arg variant. */
1078 if (dummy_beg
&& sal_end
.symtab
== 0)
1079 error (_("No default source file yet. Do \"help list\"."));
1081 print_source_lines (sal_end
.symtab
,
1082 std::max (sal_end
.line
- (get_lines_to_list () - 1), 1),
1083 sal_end
.line
+ 1, 0);
1084 else if (sal
.symtab
== 0)
1085 error (_("No default source file yet. Do \"help list\"."));
1088 for (int i
= 0; i
< sals
.nelts
; i
++)
1091 int first_line
= sal
.line
- get_lines_to_list () / 2;
1096 printf_filtered (_("file: \"%s\", line number: %d\n"),
1097 symtab_to_filename_for_display (sal
.symtab
),
1100 print_source_lines (sal
.symtab
,
1102 first_line
+ get_lines_to_list (),
1107 print_source_lines (sal
.symtab
, sal
.line
,
1109 ? sal
.line
+ get_lines_to_list ()
1110 : sal_end
.line
+ 1),
1115 /* Subroutine of disassemble_command to simplify it.
1116 Perform the disassembly.
1117 NAME is the name of the function if known, or NULL.
1118 [LOW,HIGH) are the range of addresses to disassemble.
1119 MIXED is non-zero to print source with the assembler. */
1122 print_disassembly (struct gdbarch
*gdbarch
, const char *name
,
1123 CORE_ADDR low
, CORE_ADDR high
, int flags
)
1126 if (!tui_is_window_visible (DISASSEM_WIN
))
1129 printf_filtered ("Dump of assembler code ");
1131 printf_filtered ("for function %s:\n", name
);
1133 printf_filtered ("from %s to %s:\n",
1134 paddress (gdbarch
, low
), paddress (gdbarch
, high
));
1136 /* Dump the specified range. */
1137 gdb_disassembly (gdbarch
, current_uiout
, flags
, -1, low
, high
);
1139 printf_filtered ("End of assembler dump.\n");
1140 gdb_flush (gdb_stdout
);
1145 tui_show_assembly (gdbarch
, low
);
1150 /* Subroutine of disassemble_command to simplify it.
1151 Print a disassembly of the current function according to FLAGS. */
1154 disassemble_current_function (int flags
)
1156 struct frame_info
*frame
;
1157 struct gdbarch
*gdbarch
;
1158 CORE_ADDR low
, high
, pc
;
1161 frame
= get_selected_frame (_("No frame selected."));
1162 gdbarch
= get_frame_arch (frame
);
1163 pc
= get_frame_address_in_block (frame
);
1164 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1165 error (_("No function contains program counter for selected frame."));
1167 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1170 /* FIXME: cagney/2004-02-07: This should be an observer. */
1171 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1173 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1175 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1178 /* Dump a specified section of assembly code.
1182 - dump the assembly code for the function of the current pc
1183 disassemble [/mrs] addr
1184 - dump the assembly code for the function at ADDR
1185 disassemble [/mrs] low,high
1186 disassemble [/mrs] low,+length
1187 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1189 A /m modifier will include source code with the assembly in a
1190 "source centric" view. This view lists only the file of the first insn,
1191 even if other source files are involved (e.g., inlined functions), and
1192 the output is in source order, even with optimized code. This view is
1193 considered deprecated as it hasn't been useful in practice.
1195 A /r modifier will include raw instructions in hex with the assembly.
1197 A /s modifier will include source code with the assembly, like /m, with
1198 two important differences:
1199 1) The output is still in pc address order.
1200 2) File names and contents for all relevant source files are displayed. */
1203 disassemble_command (char *arg
, int from_tty
)
1205 struct gdbarch
*gdbarch
= get_current_arch ();
1206 CORE_ADDR low
, high
;
1221 error (_("Missing modifier."));
1223 while (*p
&& ! isspace (*p
))
1228 flags
|= DISASSEMBLY_SOURCE_DEPRECATED
;
1231 flags
|= DISASSEMBLY_RAW_INSN
;
1234 flags
|= DISASSEMBLY_SOURCE
;
1237 error (_("Invalid disassembly modifier."));
1241 p
= skip_spaces_const (p
);
1244 if ((flags
& (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1245 == (DISASSEMBLY_SOURCE_DEPRECATED
| DISASSEMBLY_SOURCE
))
1246 error (_("Cannot specify both /m and /s."));
1250 flags
|= DISASSEMBLY_OMIT_FNAME
;
1251 disassemble_current_function (flags
);
1255 pc
= value_as_address (parse_to_comma_and_eval (&p
));
1261 if (find_pc_partial_function (pc
, &name
, &low
, &high
) == 0)
1262 error (_("No function contains specified address."));
1264 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1267 /* FIXME: cagney/2004-02-07: This should be an observer. */
1268 low
= tui_get_low_disassembly_address (gdbarch
, low
, pc
);
1270 low
+= gdbarch_deprecated_function_start_offset (gdbarch
);
1271 flags
|= DISASSEMBLY_OMIT_FNAME
;
1275 /* Two arguments. */
1278 p
= skip_spaces_const (p
);
1284 high
= parse_and_eval_address (p
);
1289 print_disassembly (gdbarch
, name
, low
, high
, flags
);
1293 make_command (char *arg
, int from_tty
)
1296 shell_escape ("make", from_tty
);
1299 std::string cmd
= std::string ("make ") + arg
;
1301 shell_escape (cmd
.c_str (), from_tty
);
1306 show_user (char *args
, int from_tty
)
1308 struct cmd_list_element
*c
;
1309 extern struct cmd_list_element
*cmdlist
;
1313 const char *comname
= args
;
1315 c
= lookup_cmd (&comname
, cmdlist
, "", 0, 1);
1316 if (!cli_user_command_p (c
))
1317 error (_("Not a user command."));
1318 show_user_1 (c
, "", args
, gdb_stdout
);
1322 for (c
= cmdlist
; c
; c
= c
->next
)
1324 if (cli_user_command_p (c
) || c
->prefixlist
!= NULL
)
1325 show_user_1 (c
, "", c
->name
, gdb_stdout
);
1330 /* Search through names of commands and documentations for a certain
1331 regular expression. */
1334 apropos_command (char *searchstr
, int from_tty
)
1336 if (searchstr
== NULL
)
1337 error (_("REGEXP string is empty"));
1339 compiled_regex
pattern (searchstr
, REG_ICASE
,
1340 _("Error in regular expression"));
1342 apropos_cmd (gdb_stdout
, cmdlist
, pattern
, "");
1345 /* Subroutine of alias_command to simplify it.
1346 Return the first N elements of ARGV flattened back to a string
1347 with a space separating each element.
1348 ARGV may not be NULL.
1349 This does not take care of quoting elements in case they contain spaces
1353 argv_to_string (char **argv
, int n
)
1358 gdb_assert (argv
!= NULL
);
1359 gdb_assert (n
>= 0 && n
<= countargv (argv
));
1361 for (i
= 0; i
< n
; ++i
)
1371 /* Subroutine of alias_command to simplify it.
1372 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1375 valid_command_p (const char *command
)
1377 struct cmd_list_element
*c
;
1379 c
= lookup_cmd_1 (& command
, cmdlist
, NULL
, 1);
1381 if (c
== NULL
|| c
== (struct cmd_list_element
*) -1)
1384 /* This is the slightly tricky part.
1385 lookup_cmd_1 will return a pointer to the last part of COMMAND
1386 to match, leaving COMMAND pointing at the remainder. */
1387 while (*command
== ' ' || *command
== '\t')
1389 return *command
== '\0';
1392 /* Called when "alias" was incorrectly used. */
1395 alias_usage_error (void)
1397 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1400 /* Make an alias of an existing command. */
1403 alias_command (char *args
, int from_tty
)
1405 int i
, alias_argc
, command_argc
;
1406 int abbrev_flag
= 0;
1408 const char *alias
, *command
;
1410 if (args
== NULL
|| strchr (args
, '=') == NULL
)
1411 alias_usage_error ();
1413 equals
= strchr (args
, '=');
1414 std::string
args2 (args
, equals
- args
);
1416 gdb_argv
built_alias_argv (args2
.c_str ());
1417 gdb_argv
command_argv (equals
+ 1);
1419 char **alias_argv
= built_alias_argv
.get ();
1420 while (alias_argv
[0] != NULL
)
1422 if (strcmp (alias_argv
[0], "-a") == 0)
1427 else if (strcmp (alias_argv
[0], "--") == 0)
1436 if (alias_argv
[0] == NULL
|| command_argv
[0] == NULL
1437 || *alias_argv
[0] == '\0' || *command_argv
[0] == '\0')
1438 alias_usage_error ();
1440 for (i
= 0; alias_argv
[i
] != NULL
; ++i
)
1442 if (! valid_user_defined_cmd_name_p (alias_argv
[i
]))
1445 error (_("Invalid command name: %s"), alias_argv
[i
]);
1447 error (_("Invalid command element name: %s"), alias_argv
[i
]);
1451 alias_argc
= countargv (alias_argv
);
1452 command_argc
= command_argv
.count ();
1454 /* COMMAND must exist.
1455 Reconstruct the command to remove any extraneous spaces,
1456 for better error messages. */
1457 std::string
command_string (argv_to_string (command_argv
.get (),
1459 command
= command_string
.c_str ();
1460 if (! valid_command_p (command
))
1461 error (_("Invalid command to alias to: %s"), command
);
1463 /* ALIAS must not exist. */
1464 std::string
alias_string (argv_to_string (alias_argv
, alias_argc
));
1465 alias
= alias_string
.c_str ();
1466 if (valid_command_p (alias
))
1467 error (_("Alias already exists: %s"), alias
);
1469 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1470 Example: alias spe = set print elements
1472 Otherwise ALIAS and COMMAND must have the same number of words,
1473 and every word except the last must match; and the last word of
1474 ALIAS is made an alias of the last word of COMMAND.
1475 Example: alias set print elms = set pr elem
1476 Note that unambiguous abbreviations are allowed. */
1478 if (alias_argc
== 1)
1480 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1481 add_com_alias (xstrdup (alias_argv
[0]), command
, class_alias
,
1486 const char *alias_prefix
, *command_prefix
;
1487 struct cmd_list_element
*c_alias
, *c_command
;
1489 if (alias_argc
!= command_argc
)
1490 error (_("Mismatched command length between ALIAS and COMMAND."));
1492 /* Create copies of ALIAS and COMMAND without the last word,
1493 and use that to verify the leading elements match. */
1494 std::string
alias_prefix_string (argv_to_string (alias_argv
,
1496 std::string
command_prefix_string (argv_to_string (alias_argv
,
1498 alias_prefix
= alias_prefix_string
.c_str ();
1499 command_prefix
= command_prefix_string
.c_str ();
1501 c_command
= lookup_cmd_1 (& command_prefix
, cmdlist
, NULL
, 1);
1502 /* We've already tried to look up COMMAND. */
1503 gdb_assert (c_command
!= NULL
1504 && c_command
!= (struct cmd_list_element
*) -1);
1505 gdb_assert (c_command
->prefixlist
!= NULL
);
1506 c_alias
= lookup_cmd_1 (& alias_prefix
, cmdlist
, NULL
, 1);
1507 if (c_alias
!= c_command
)
1508 error (_("ALIAS and COMMAND prefixes do not match."));
1510 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1511 add_alias_cmd (xstrdup (alias_argv
[alias_argc
- 1]),
1512 command_argv
[command_argc
- 1],
1513 class_alias
, abbrev_flag
, c_command
->prefixlist
);
1517 /* Print a list of files and line numbers which a user may choose from
1518 in order to list a function which was specified ambiguously (as
1519 with `list classname::overloadedfuncname', for example). The
1520 vector in SALS provides the filenames and line numbers. */
1523 ambiguous_line_spec (struct symtabs_and_lines
*sals
)
1527 for (i
= 0; i
< sals
->nelts
; ++i
)
1528 printf_filtered (_("file: \"%s\", line number: %d\n"),
1529 symtab_to_filename_for_display (sals
->sals
[i
].symtab
),
1530 sals
->sals
[i
].line
);
1533 /* Sort function for filter_sals. */
1536 compare_symtabs (const void *a
, const void *b
)
1538 const struct symtab_and_line
*sala
= (const struct symtab_and_line
*) a
;
1539 const struct symtab_and_line
*salb
= (const struct symtab_and_line
*) b
;
1540 const char *dira
= SYMTAB_DIRNAME (sala
->symtab
);
1541 const char *dirb
= SYMTAB_DIRNAME (salb
->symtab
);
1549 else if (dirb
== NULL
)
1556 r
= filename_cmp (dira
, dirb
);
1561 r
= filename_cmp (sala
->symtab
->filename
, salb
->symtab
->filename
);
1565 if (sala
->line
< salb
->line
)
1567 return sala
->line
== salb
->line
? 0 : 1;
1570 /* Remove any SALs that do not match the current program space, or
1571 which appear to be "file:line" duplicates. */
1574 filter_sals (struct symtabs_and_lines
*sals
)
1579 for (i
= 0; i
< sals
->nelts
; ++i
)
1581 if (sals
->sals
[i
].pspace
== current_program_space
1582 && sals
->sals
[i
].symtab
!= NULL
)
1584 sals
->sals
[out
] = sals
->sals
[i
];
1590 qsort (sals
->sals
, sals
->nelts
, sizeof (struct symtab_and_line
),
1595 for (i
= 1; i
< sals
->nelts
; ++i
)
1597 if (compare_symtabs (&sals
->sals
[prev
], &sals
->sals
[i
]))
1599 /* Symtabs differ. */
1600 sals
->sals
[out
] = sals
->sals
[i
];
1606 if (sals
->nelts
== 0)
1616 set_debug (char *arg
, int from_tty
)
1618 printf_unfiltered (_("\"set debug\" must be followed by "
1619 "the name of a debug subcommand.\n"));
1620 help_list (setdebuglist
, "set debug ", all_commands
, gdb_stdout
);
1624 show_debug (char *args
, int from_tty
)
1626 cmd_show_list (showdebuglist
, from_tty
, "");
1630 init_cmd_lists (void)
1632 max_user_call_depth
= 1024;
1636 show_info_verbose (struct ui_file
*file
, int from_tty
,
1637 struct cmd_list_element
*c
,
1641 fprintf_filtered (file
,
1642 _("Verbose printing of informational messages is %s.\n"),
1645 fprintf_filtered (file
, _("Verbosity is %s.\n"), value
);
1649 show_history_expansion_p (struct ui_file
*file
, int from_tty
,
1650 struct cmd_list_element
*c
, const char *value
)
1652 fprintf_filtered (file
, _("History expansion on command input is %s.\n"),
1657 show_remote_debug (struct ui_file
*file
, int from_tty
,
1658 struct cmd_list_element
*c
, const char *value
)
1660 fprintf_filtered (file
, _("Debugging of remote protocol is %s.\n"),
1665 show_remote_timeout (struct ui_file
*file
, int from_tty
,
1666 struct cmd_list_element
*c
, const char *value
)
1668 fprintf_filtered (file
,
1669 _("Timeout limit to wait for target to respond is %s.\n"),
1674 show_max_user_call_depth (struct ui_file
*file
, int from_tty
,
1675 struct cmd_list_element
*c
, const char *value
)
1677 fprintf_filtered (file
,
1678 _("The max call depth for user-defined commands is %s.\n"),
1684 initialize_file_ftype _initialize_cli_cmds
;
1687 _initialize_cli_cmds (void)
1689 struct cmd_list_element
*c
;
1691 /* Define the classes of commands.
1692 They will appear in the help list in alphabetical order. */
1694 add_cmd ("internals", class_maintenance
, NULL
, _("\
1695 Maintenance commands.\n\
1696 Some gdb commands are provided just for use by gdb maintainers.\n\
1697 These commands are subject to frequent change, and may not be as\n\
1698 well documented as user commands."),
1700 add_cmd ("obscure", class_obscure
, NULL
, _("Obscure features."), &cmdlist
);
1701 add_cmd ("aliases", class_alias
, NULL
,
1702 _("Aliases of other commands."), &cmdlist
);
1703 add_cmd ("user-defined", class_user
, NULL
, _("\
1704 User-defined commands.\n\
1705 The commands in this class are those defined by the user.\n\
1706 Use the \"define\" command to define a command."), &cmdlist
);
1707 add_cmd ("support", class_support
, NULL
, _("Support facilities."), &cmdlist
);
1709 add_cmd ("status", class_info
, NULL
, _("Status inquiries."), &cmdlist
);
1710 add_cmd ("files", class_files
, NULL
, _("Specifying and examining files."),
1712 add_cmd ("breakpoints", class_breakpoint
, NULL
,
1713 _("Making program stop at certain points."), &cmdlist
);
1714 add_cmd ("data", class_vars
, NULL
, _("Examining data."), &cmdlist
);
1715 add_cmd ("stack", class_stack
, NULL
, _("\
1716 Examining the stack.\n\
1717 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1718 counting from zero for the innermost (currently executing) frame.\n\n\
1719 At any time gdb identifies one frame as the \"selected\" frame.\n\
1720 Variable lookups are done with respect to the selected frame.\n\
1721 When the program being debugged stops, gdb selects the innermost frame.\n\
1722 The commands below can be used to select other frames by number or address."),
1724 add_cmd ("running", class_run
, NULL
, _("Running the program."), &cmdlist
);
1726 /* Define general commands. */
1728 add_com ("pwd", class_files
, pwd_command
, _("\
1729 Print working directory. This is used for your program as well."));
1731 c
= add_cmd ("cd", class_files
, cd_command
, _("\
1732 Set working directory to DIR for debugger and program being debugged.\n\
1733 The change does not take effect for the program being debugged\n\
1734 until the next time it is started."), &cmdlist
);
1735 set_cmd_completer (c
, filename_completer
);
1737 add_com ("echo", class_support
, echo_command
, _("\
1738 Print a constant string. Give string as argument.\n\
1739 C escape sequences may be used in the argument.\n\
1740 No newline is added at the end of the argument;\n\
1741 use \"\\n\" if you want a newline to be printed.\n\
1742 Since leading and trailing whitespace are ignored in command arguments,\n\
1743 if you want to print some you must use \"\\\" before leading whitespace\n\
1744 to be printed or after trailing whitespace."));
1746 add_setshow_enum_cmd ("script-extension", class_support
,
1747 script_ext_enums
, &script_ext_mode
, _("\
1748 Set mode for script filename extension recognition."), _("\
1749 Show mode for script filename extension recognition."), _("\
1750 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1751 soft == evaluate script according to filename extension, fallback to GDB script"
1753 strict == evaluate script according to filename extension, error if not supported"
1756 show_script_ext_mode
,
1757 &setlist
, &showlist
);
1759 add_com ("quit", class_support
, quit_command
, _("\
1761 Usage: quit [EXPR]\n\
1762 The optional expression EXPR, if present, is evaluated and the result\n\
1763 used as GDB's exit code. The default is zero."));
1764 c
= add_com ("help", class_support
, help_command
,
1765 _("Print list of commands."));
1766 set_cmd_completer (c
, command_completer
);
1767 add_com_alias ("q", "quit", class_support
, 1);
1768 add_com_alias ("h", "help", class_support
, 1);
1770 add_setshow_boolean_cmd ("verbose", class_support
, &info_verbose
, _("\
1771 Set verbosity."), _("\
1772 Show verbosity."), NULL
,
1775 &setlist
, &showlist
);
1777 add_prefix_cmd ("history", class_support
, set_history
,
1778 _("Generic command for setting command history parameters."),
1779 &sethistlist
, "set history ", 0, &setlist
);
1780 add_prefix_cmd ("history", class_support
, show_history
,
1781 _("Generic command for showing command history parameters."),
1782 &showhistlist
, "show history ", 0, &showlist
);
1784 add_setshow_boolean_cmd ("expansion", no_class
, &history_expansion_p
, _("\
1785 Set history expansion on command input."), _("\
1786 Show history expansion on command input."), _("\
1787 Without an argument, history expansion is enabled."),
1789 show_history_expansion_p
,
1790 &sethistlist
, &showhistlist
);
1792 add_prefix_cmd ("info", class_info
, info_command
, _("\
1793 Generic command for showing things about the program being debugged."),
1794 &infolist
, "info ", 0, &cmdlist
);
1795 add_com_alias ("i", "info", class_info
, 1);
1796 add_com_alias ("inf", "info", class_info
, 1);
1798 add_com ("complete", class_obscure
, complete_command
,
1799 _("List the completions for the rest of the line as a command."));
1801 add_prefix_cmd ("show", class_info
, show_command
, _("\
1802 Generic command for showing things about the debugger."),
1803 &showlist
, "show ", 0, &cmdlist
);
1804 /* Another way to get at the same thing. */
1805 add_info ("set", show_command
, _("Show all GDB settings."));
1807 add_cmd ("commands", no_set_class
, show_commands
, _("\
1808 Show the history of commands you typed.\n\
1809 You can supply a command number to start with, or a `+' to start after\n\
1810 the previous command number shown."),
1813 add_cmd ("version", no_set_class
, show_version
,
1814 _("Show what version of GDB this is."), &showlist
);
1816 add_cmd ("configuration", no_set_class
, show_configuration
,
1817 _("Show how GDB was configured at build time."), &showlist
);
1819 add_setshow_zinteger_cmd ("remote", no_class
, &remote_debug
, _("\
1820 Set debugging of remote protocol."), _("\
1821 Show debugging of remote protocol."), _("\
1822 When enabled, each packet sent or received with the remote target\n\
1826 &setdebuglist
, &showdebuglist
);
1828 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class
,
1829 &remote_timeout
, _("\
1830 Set timeout limit to wait for target to respond."), _("\
1831 Show timeout limit to wait for target to respond."), _("\
1832 This value is used to set the time limit for gdb to wait for a response\n\
1835 show_remote_timeout
,
1836 &setlist
, &showlist
);
1838 add_prefix_cmd ("debug", no_class
, set_debug
,
1839 _("Generic command for setting gdb debugging flags"),
1840 &setdebuglist
, "set debug ", 0, &setlist
);
1842 add_prefix_cmd ("debug", no_class
, show_debug
,
1843 _("Generic command for showing gdb debugging flags"),
1844 &showdebuglist
, "show debug ", 0, &showlist
);
1846 c
= add_com ("shell", class_support
, shell_command
, _("\
1847 Execute the rest of the line as a shell command.\n\
1848 With no arguments, run an inferior shell."));
1849 set_cmd_completer (c
, filename_completer
);
1851 c
= add_com ("edit", class_files
, edit_command
, _("\
1852 Edit specified file or function.\n\
1853 With no argument, edits file containing most recent line listed.\n\
1854 Editing targets can be specified in these ways:\n\
1855 FILE:LINENUM, to edit at that line in that file,\n\
1856 FUNCTION, to edit at the beginning of that function,\n\
1857 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1858 *ADDRESS, to edit at the line containing that address.\n\
1859 Uses EDITOR environment variable contents as editor (or ex as default)."));
1861 c
->completer
= location_completer
;
1863 add_com ("list", class_files
, list_command
, _("\
1864 List specified function or line.\n\
1865 With no argument, lists ten more lines after or around previous listing.\n\
1866 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1867 One argument specifies a line, and ten lines are listed around that line.\n\
1868 Two arguments with comma between specify starting and ending lines to list.\n\
1869 Lines can be specified in these ways:\n\
1870 LINENUM, to list around that line in current file,\n\
1871 FILE:LINENUM, to list around that line in that file,\n\
1872 FUNCTION, to list around beginning of that function,\n\
1873 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1874 *ADDRESS, to list around the line containing that address.\n\
1875 With two args, if one is empty, it stands for ten lines away from\n\
1878 By default, when a single location is given, display ten lines.\n\
1879 This can be changed using \"set listsize\", and the current value\n\
1880 can be shown using \"show listsize\"."));
1882 add_com_alias ("l", "list", class_files
, 1);
1885 add_com_alias ("file", "list", class_files
, 1);
1887 c
= add_com ("disassemble", class_vars
, disassemble_command
, _("\
1888 Disassemble a specified section of memory.\n\
1889 Default is the function surrounding the pc of the selected frame.\n\
1891 With a /m modifier, source lines are included (if available).\n\
1892 This view is \"source centric\": the output is in source line order,\n\
1893 regardless of any optimization that is present. Only the main source file\n\
1894 is displayed, not those of, e.g., any inlined functions.\n\
1895 This modifier hasn't proved useful in practice and is deprecated\n\
1898 With a /s modifier, source lines are included (if available).\n\
1899 This differs from /m in two important respects:\n\
1900 - the output is still in pc address order, and\n\
1901 - file names and contents for all relevant source files are displayed.\n\
1903 With a /r modifier, raw instructions in hex are included.\n\
1905 With a single argument, the function surrounding that address is dumped.\n\
1906 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1907 in the form of \"start,end\", or \"start,+length\".\n\
1909 Note that the address is interpreted as an expression, not as a location\n\
1910 like in the \"break\" command.\n\
1911 So, for example, if you want to disassemble function bar in file foo.c\n\
1912 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1913 set_cmd_completer (c
, location_completer
);
1915 add_com_alias ("!", "shell", class_support
, 0);
1917 c
= add_com ("make", class_support
, make_command
, _("\
1918 Run the ``make'' program using the rest of the line as arguments."));
1919 set_cmd_completer (c
, filename_completer
);
1920 add_cmd ("user", no_class
, show_user
, _("\
1921 Show definitions of non-python/scheme user defined commands.\n\
1922 Argument is the name of the user defined command.\n\
1923 With no argument, show definitions of all user defined commands."), &showlist
);
1924 add_com ("apropos", class_support
, apropos_command
,
1925 _("Search for commands matching a REGEXP"));
1927 add_setshow_uinteger_cmd ("max-user-call-depth", no_class
,
1928 &max_user_call_depth
, _("\
1929 Set the max call depth for non-python/scheme user-defined commands."), _("\
1930 Show the max call depth for non-python/scheme user-defined commands."), NULL
,
1932 show_max_user_call_depth
,
1933 &setlist
, &showlist
);
1935 add_setshow_boolean_cmd ("trace-commands", no_class
, &trace_commands
, _("\
1936 Set tracing of GDB CLI commands."), _("\
1937 Show state of GDB CLI command tracing."), _("\
1938 When 'on', each command is displayed as it is executed."),
1941 &setlist
, &showlist
);
1943 c
= add_com ("alias", class_support
, alias_command
, _("\
1944 Define a new command that is an alias of an existing command.\n\
1945 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1946 ALIAS is the name of the alias command to create.\n\
1947 COMMAND is the command being aliased to.\n\
1948 If \"-a\" is specified, the command is an abbreviation,\n\
1949 and will not appear in help command list output.\n\
1952 Make \"spe\" an alias of \"set print elements\":\n\
1953 alias spe = set print elements\n\
1954 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1955 alias -a set print elms = set print elements"));
1959 init_cli_cmds (void)
1961 struct cmd_list_element
*c
;
1962 char *source_help_text
;
1964 source_help_text
= xstrprintf (_("\
1965 Read commands from a file named FILE.\n\
1967 Usage: source [-s] [-v] FILE\n\
1968 -s: search for the script in the source search path,\n\
1969 even if FILE contains directories.\n\
1970 -v: each command in FILE is echoed as it is executed.\n\
1972 Note that the file \"%s\" is read automatically in this way\n\
1973 when GDB is started."), gdbinit
);
1974 c
= add_cmd ("source", class_support
, source_command
,
1975 source_help_text
, &cmdlist
);
1976 set_cmd_completer (c
, filename_completer
);