1 /* Top level stuff for GDB, the GNU debugger.
3 Copyright (C) 1986-2013 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/>. */
22 #include "cli/cli-cmds.h"
23 #include "cli/cli-script.h"
24 #include "cli/cli-setshow.h"
25 #include "cli/cli-decode.h"
28 #include "exceptions.h"
31 #include "breakpoint.h"
33 #include "expression.h"
36 #include "terminal.h" /* For job_control. */
38 #include "completer.h"
43 #include "gdb_assert.h"
45 #include "event-loop.h"
46 #include "gdbthread.h"
47 #include "python/python.h"
51 #include "filenames.h"
53 /* readline include files. */
54 #include "readline/readline.h"
55 #include "readline/history.h"
57 /* readline defines this. */
60 #include <sys/types.h>
62 #include "event-top.h"
68 #include "tracepoint.h"
70 extern void initialize_all_files (void);
72 #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt
73 #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix
74 #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix
76 /* Default command line prompt. This is overriden in some configs. */
78 #ifndef DEFAULT_PROMPT
79 #define DEFAULT_PROMPT "(gdb) "
82 /* Initialization file name for gdb. This is host-dependent. */
84 const char gdbinit
[] = GDBINIT
;
86 int inhibit_gdbinit
= 0;
88 /* If nonzero, and GDB has been configured to be able to use windows,
89 attempt to open them upon startup. */
93 extern char lang_frame_mismatch_warn
[]; /* language.c */
95 /* Flag for whether we want to confirm potentially dangerous
96 operations. Default is yes. */
101 show_confirm (struct ui_file
*file
, int from_tty
,
102 struct cmd_list_element
*c
, const char *value
)
104 fprintf_filtered (file
, _("Whether to confirm potentially "
105 "dangerous operations is %s.\n"),
109 /* stdio stream that command input is being read from. Set to stdin
110 normally. Set by source_command to the file we are sourcing. Set
111 to NULL if we are executing a user-defined command or interacting
116 /* Flag to indicate whether a user defined command is currently running. */
120 /* Current working directory. */
122 char *current_directory
;
124 /* The directory name is actually stored here (usually). */
125 char gdb_dirbuf
[1024];
127 /* Function to call before reading a command, if nonzero.
128 The function receives two args: an input stream,
129 and a prompt string. */
131 void (*window_hook
) (FILE *, char *);
133 /* Buffer used for reading command lines, and the size
134 allocated for it so far. */
136 char *saved_command_line
;
137 int saved_command_line_size
= 100;
139 /* Nonzero if the current command is modified by "server ". This
140 affects things like recording into the command history, commands
141 repeating on RETURN, etc. This is so a user interface (emacs, GUI,
142 whatever) can issue its own commands and also send along commands
143 from the user, and have the user not notice that the user interface
144 is issuing commands too. */
147 /* Timeout limit for response from target. */
149 /* The default value has been changed many times over the years. It
150 was originally 5 seconds. But that was thought to be a long time
151 to sit and wait, so it was changed to 2 seconds. That was thought
152 to be plenty unless the connection was going through some terminal
153 server or multiplexer or other form of hairy serial connection.
155 In mid-1996, remote_timeout was moved from remote.c to top.c and
156 it began being used in other remote-* targets. It appears that the
157 default was changed to 20 seconds at that time, perhaps because the
158 Renesas E7000 ICE didn't always respond in a timely manner.
160 But if 5 seconds is a long time to sit and wait for retransmissions,
161 20 seconds is far worse. This demonstrates the difficulty of using
162 a single variable for all protocol timeouts.
164 As remote.c is used much more than remote-e7000.c, it was changed
165 back to 2 seconds in 1999. */
167 int remote_timeout
= 2;
169 /* Non-zero tells remote* modules to output debugging info. */
171 int remote_debug
= 0;
173 /* Sbrk location on entry to main. Used for statistics only. */
178 /* Hooks for alternate command interfaces. */
180 /* Called after most modules have been initialized, but before taking
183 If the UI fails to initialize and it wants GDB to continue using
184 the default UI, then it should clear this hook before returning. */
186 void (*deprecated_init_ui_hook
) (char *argv0
);
188 /* This hook is called from within gdb's many mini-event loops which
189 could steal control from a real user interface's event loop. It
190 returns non-zero if the user is requesting a detach, zero
193 int (*deprecated_ui_loop_hook
) (int);
196 /* Called from print_frame_info to list the line we stopped in. */
198 void (*deprecated_print_frame_info_listing_hook
) (struct symtab
* s
,
202 /* Replaces most of query. */
204 int (*deprecated_query_hook
) (const char *, va_list);
206 /* Replaces most of warning. */
208 void (*deprecated_warning_hook
) (const char *, va_list);
210 /* These three functions support getting lines of text from the user.
211 They are used in sequence. First deprecated_readline_begin_hook is
212 called with a text string that might be (for example) a message for
213 the user to type in a sequence of commands to be executed at a
214 breakpoint. If this function calls back to a GUI, it might take
215 this opportunity to pop up a text interaction window with this
216 message. Next, deprecated_readline_hook is called with a prompt
217 that is emitted prior to collecting the user input. It can be
218 called multiple times. Finally, deprecated_readline_end_hook is
219 called to notify the GUI that we are done with the interaction
220 window and it can close it. */
222 void (*deprecated_readline_begin_hook
) (char *, ...);
223 char *(*deprecated_readline_hook
) (char *);
224 void (*deprecated_readline_end_hook
) (void);
226 /* Called as appropriate to notify the interface that we have attached
227 to or detached from an already running process. */
229 void (*deprecated_attach_hook
) (void);
230 void (*deprecated_detach_hook
) (void);
232 /* Called during long calculations to allow GUI to repair window
233 damage, and to check for stop buttons, etc... */
235 void (*deprecated_interactive_hook
) (void);
237 /* Tell the GUI someone changed the register REGNO. -1 means
238 that the caller does not know which register changed or
239 that several registers have changed (see value_assign). */
240 void (*deprecated_register_changed_hook
) (int regno
);
242 /* Called when going to wait for the target. Usually allows the GUI
243 to run while waiting for target events. */
245 ptid_t (*deprecated_target_wait_hook
) (ptid_t ptid
,
246 struct target_waitstatus
*status
,
249 /* Used by UI as a wrapper around command execution. May do various
250 things like enabling/disabling buttons, etc... */
252 void (*deprecated_call_command_hook
) (struct cmd_list_element
* c
,
253 char *cmd
, int from_tty
);
255 /* Called after a `set' command has finished. Is only run if the
256 `set' command succeeded. */
258 void (*deprecated_set_hook
) (struct cmd_list_element
* c
);
260 /* Called when the current thread changes. Argument is thread id. */
262 void (*deprecated_context_hook
) (int id
);
264 /* Handler for SIGHUP. */
267 /* NOTE 1999-04-29: This function will be static again, once we modify
268 gdb to use the event loop as the default command loop and we merge
269 event-top.c into this file, top.c. */
273 /* Stop asking user for confirmation --- we're exiting. This
274 prevents asking the user dumb questions. */
276 quit_command ((char *) 0, 0);
278 #endif /* defined SIGHUP */
280 /* Line number we are currently in, in a file which is being sourced. */
281 /* NOTE 1999-04-29: This variable will be static again, once we modify
282 gdb to use the event loop as the default command loop and we merge
283 event-top.c into this file, top.c. */
284 /* static */ int source_line_number
;
286 /* Name of the file we are sourcing. */
287 /* NOTE 1999-04-29: This variable will be static again, once we modify
288 gdb to use the event loop as the default command loop and we merge
289 event-top.c into this file, top.c. */
290 /* static */ const char *source_file_name
;
292 /* Clean up on error during a "source" command (or execution of a
293 user-defined command). */
296 do_restore_instream_cleanup (void *stream
)
298 /* Restore the previous input stream. */
302 /* Read commands from STREAM. */
304 read_command_file (FILE *stream
)
306 struct cleanup
*cleanups
;
308 cleanups
= make_cleanup (do_restore_instream_cleanup
, instream
);
311 do_cleanups (cleanups
);
314 void (*pre_init_ui_hook
) (void);
318 do_chdir_cleanup (void *old_dir
)
326 prepare_execute_command (void)
329 struct cleanup
*cleanup
;
331 mark
= value_mark ();
332 cleanup
= make_cleanup_value_free_to_mark (mark
);
334 /* With multiple threads running while the one we're examining is
335 stopped, the dcache can get stale without us being able to detect
336 it. For the duration of the command, though, use the dcache to
337 help things like backtrace. */
339 target_dcache_invalidate ();
344 /* Tell the user if the language has changed (except first time) after
345 executing a command. */
348 check_frame_language_change (void)
350 static int warned
= 0;
352 /* First make sure that a new frame has been selected, in case the
353 command or the hooks changed the program state. */
354 deprecated_safe_get_selected_frame ();
355 if (current_language
!= expected_language
)
357 if (language_mode
== language_mode_auto
&& info_verbose
)
359 language_info (1); /* Print what changed. */
364 /* Warn the user if the working language does not match the language
365 of the current frame. Only warn the user if we are actually
366 running the program, i.e. there is a stack. */
367 /* FIXME: This should be cacheing the frame and only running when
368 the frame changes. */
370 if (has_stack_frames ())
374 flang
= get_frame_language ();
376 && flang
!= language_unknown
377 && flang
!= current_language
->la_language
)
379 printf_filtered ("%s\n", lang_frame_mismatch_warn
);
385 /* Execute the line P as a command, in the current user context.
386 Pass FROM_TTY as second argument to the defining function. */
389 execute_command (char *p
, int from_tty
)
391 struct cleanup
*cleanup_if_error
, *cleanup
;
392 struct cmd_list_element
*c
;
395 cleanup_if_error
= make_bpstat_clear_actions_cleanup ();
396 cleanup
= prepare_execute_command ();
398 /* Force cleanup of any alloca areas if using C alloca instead of
402 /* This can happen when command_line_input hits end of file. */
405 do_cleanups (cleanup
);
406 discard_cleanups (cleanup_if_error
);
410 target_log_command (p
);
412 while (*p
== ' ' || *p
== '\t')
420 /* If trace-commands is set then this will print this command. */
421 print_command_trace (p
);
423 c
= lookup_cmd (&cmd
, cmdlist
, "", 0, 1);
426 /* Pass null arg rather than an empty one. */
429 /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy
430 while the is_complete_command(cfunc) test is just plain
431 bogus. They should both be replaced by a test of the form
432 c->strip_trailing_white_space_p. */
433 /* NOTE: cagney/2002-02-02: The function.cfunc in the below
434 can't be replaced with func. This is because it is the
435 cfunc, and not the func, that has the value that the
436 is_complete_command hack is testing for. */
437 /* Clear off trailing whitespace, except for set and complete
440 && c
->type
!= set_cmd
441 && !is_complete_command (c
))
443 p
= arg
+ strlen (arg
) - 1;
444 while (p
>= arg
&& (*p
== ' ' || *p
== '\t'))
449 /* If this command has been pre-hooked, run the hook first. */
450 execute_cmd_pre_hook (c
);
452 if (c
->flags
& DEPRECATED_WARN_USER
)
453 deprecated_cmd_warning (line
);
455 /* c->user_commands would be NULL in the case of a python command. */
456 if (c
->class == class_user
&& c
->user_commands
)
457 execute_user_command (c
, arg
);
458 else if (c
->type
== set_cmd
)
459 do_set_command (arg
, from_tty
, c
);
460 else if (c
->type
== show_cmd
)
461 do_show_command (arg
, from_tty
, c
);
462 else if (!cmd_func_p (c
))
463 error (_("That is not a command, just a help topic."));
464 else if (deprecated_call_command_hook
)
465 deprecated_call_command_hook (c
, arg
, from_tty
);
467 cmd_func (c
, arg
, from_tty
);
469 /* If the interpreter is in sync mode (we're running a user
470 command's list, running command hooks or similars), and we
471 just ran a synchronous command that started the target, wait
472 for that command to end. */
473 if (!interpreter_async
&& sync_execution
)
475 while (gdb_do_one_event () >= 0)
480 /* If this command has been post-hooked, run the hook last. */
481 execute_cmd_post_hook (c
);
485 check_frame_language_change ();
487 do_cleanups (cleanup
);
488 discard_cleanups (cleanup_if_error
);
491 /* Run execute_command for P and FROM_TTY. Capture its output into the
492 returned string, do not display it to the screen. BATCH_FLAG will be
493 temporarily set to true. */
496 execute_command_to_string (char *p
, int from_tty
)
498 struct ui_file
*str_file
;
499 struct cleanup
*cleanup
;
502 /* GDB_STDOUT should be better already restored during these
503 restoration callbacks. */
504 cleanup
= set_batch_flag_and_make_cleanup_restore_page_info ();
506 make_cleanup_restore_integer (&interpreter_async
);
507 interpreter_async
= 0;
509 str_file
= mem_fileopen ();
511 make_cleanup_ui_file_delete (str_file
);
512 make_cleanup_restore_ui_file (&gdb_stdout
);
513 make_cleanup_restore_ui_file (&gdb_stderr
);
514 make_cleanup_restore_ui_file (&gdb_stdlog
);
515 make_cleanup_restore_ui_file (&gdb_stdtarg
);
516 make_cleanup_restore_ui_file (&gdb_stdtargerr
);
518 if (ui_out_redirect (current_uiout
, str_file
) < 0)
519 warning (_("Current output protocol does not support redirection"));
521 make_cleanup_ui_out_redirect_pop (current_uiout
);
523 gdb_stdout
= str_file
;
524 gdb_stderr
= str_file
;
525 gdb_stdlog
= str_file
;
526 gdb_stdtarg
= str_file
;
527 gdb_stdtargerr
= str_file
;
529 execute_command (p
, from_tty
);
531 retval
= ui_file_xstrdup (str_file
, NULL
);
533 do_cleanups (cleanup
);
538 /* Read commands from `instream' and execute them
539 until end of file or error reading instream. */
544 struct cleanup
*old_chain
;
546 int stdin_is_tty
= ISATTY (stdin
);
548 while (instream
&& !feof (instream
))
550 if (window_hook
&& instream
== stdin
)
551 (*window_hook
) (instream
, get_prompt ());
554 if (instream
== stdin
&& stdin_is_tty
)
555 reinitialize_more_filter ();
556 old_chain
= make_cleanup (null_cleanup
, 0);
558 /* Get a command-line. This calls the readline package. */
559 command
= command_line_input (instream
== stdin
?
560 get_prompt () : (char *) NULL
,
561 instream
== stdin
, "prompt");
564 do_cleanups (old_chain
);
568 make_command_stats_cleanup (1);
570 execute_command (command
, instream
== stdin
);
572 /* Do any commands attached to breakpoint we are stopped at. */
573 bpstat_do_actions ();
575 do_cleanups (old_chain
);
579 /* When nonzero, cause dont_repeat to do nothing. This should only be
580 set via prevent_dont_repeat. */
582 static int suppress_dont_repeat
= 0;
584 /* Commands call this if they do not want to be repeated by null lines. */
589 if (suppress_dont_repeat
|| server_command
)
592 /* If we aren't reading from standard input, we are saving the last
593 thing read from stdin in line and don't want to delete it. Null
594 lines won't repeat here in any case. */
595 if (instream
== stdin
)
596 *saved_command_line
= 0;
599 /* Prevent dont_repeat from working, and return a cleanup that
600 restores the previous state. */
603 prevent_dont_repeat (void)
605 struct cleanup
*result
= make_cleanup_restore_integer (&suppress_dont_repeat
);
607 suppress_dont_repeat
= 1;
612 /* Read a line from the stream "instream" without command line editing.
614 It prints PROMPT_ARG once at the start.
615 Action is compatible with "readline", e.g. space for the result is
616 malloc'd and should be freed by the caller.
618 A NULL return means end of file. */
620 gdb_readline (char *prompt_arg
)
625 int result_size
= 80;
629 /* Don't use a _filtered function here. It causes the assumed
630 character position to be off, since the newline we read from
631 the user is not accounted for. */
632 fputs_unfiltered (prompt_arg
, gdb_stdout
);
633 gdb_flush (gdb_stdout
);
636 result
= (char *) xmalloc (result_size
);
640 /* Read from stdin if we are executing a user defined command.
641 This is the right thing for prompt_for_continue, at least. */
642 c
= fgetc (instream
? instream
: stdin
);
647 /* The last line does not end with a newline. Return it, and
648 if we are called again fgetc will still return EOF and
649 we'll return NULL then. */
657 if (input_index
> 0 && result
[input_index
- 1] == '\r')
662 result
[input_index
++] = c
;
663 while (input_index
>= result_size
)
666 result
= (char *) xrealloc (result
, result_size
);
670 result
[input_index
++] = '\0';
674 /* Variables which control command line editing and history
675 substitution. These variables are given default values at the end
677 static int command_editing_p
;
679 /* NOTE 1999-04-29: This variable will be static again, once we modify
680 gdb to use the event loop as the default command loop and we merge
681 event-top.c into this file, top.c. */
683 /* static */ int history_expansion_p
;
685 static int write_history_p
;
687 show_write_history_p (struct ui_file
*file
, int from_tty
,
688 struct cmd_list_element
*c
, const char *value
)
690 fprintf_filtered (file
, _("Saving of the history record on exit is %s.\n"),
694 /* The variable associated with the "set/show history size"
696 static unsigned int history_size_setshow_var
;
699 show_history_size (struct ui_file
*file
, int from_tty
,
700 struct cmd_list_element
*c
, const char *value
)
702 fprintf_filtered (file
, _("The size of the command history is %s.\n"),
706 static char *history_filename
;
708 show_history_filename (struct ui_file
*file
, int from_tty
,
709 struct cmd_list_element
*c
, const char *value
)
711 fprintf_filtered (file
, _("The filename in which to record "
712 "the command history is \"%s\".\n"),
716 /* This is like readline(), but it has some gdb-specific behavior.
717 gdb may want readline in both the synchronous and async modes during
718 a single gdb invocation. At the ordinary top-level prompt we might
719 be using the async readline. That means we can't use
720 rl_pre_input_hook, since it doesn't work properly in async mode.
721 However, for a secondary prompt (" >", such as occurs during a
722 `define'), gdb wants a synchronous response.
724 We used to call readline() directly, running it in synchronous
725 mode. But mixing modes this way is not supported, and as of
726 readline 5.x it no longer works; the arrow keys come unbound during
727 the synchronous call. So we make a nested call into the event
728 loop. That's what gdb_readline_wrapper is for. */
730 /* A flag set as soon as gdb_readline_wrapper_line is called; we can't
731 rely on gdb_readline_wrapper_result, which might still be NULL if
732 the user types Control-D for EOF. */
733 static int gdb_readline_wrapper_done
;
735 /* The result of the current call to gdb_readline_wrapper, once a newline
737 static char *gdb_readline_wrapper_result
;
739 /* Any intercepted hook. Operate-and-get-next sets this, expecting it
740 to be called after the newline is processed (which will redisplay
741 the prompt). But in gdb_readline_wrapper we will not get a new
742 prompt until the next call, or until we return to the event loop.
743 So we disable this hook around the newline and restore it before we
745 static void (*saved_after_char_processing_hook
) (void);
747 /* This function is called when readline has seen a complete line of
751 gdb_readline_wrapper_line (char *line
)
753 gdb_assert (!gdb_readline_wrapper_done
);
754 gdb_readline_wrapper_result
= line
;
755 gdb_readline_wrapper_done
= 1;
757 /* Prevent operate-and-get-next from acting too early. */
758 saved_after_char_processing_hook
= after_char_processing_hook
;
759 after_char_processing_hook
= NULL
;
761 /* Prevent parts of the prompt from being redisplayed if annotations
762 are enabled, and readline's state getting out of sync. */
763 if (async_command_editing_p
)
764 rl_callback_handler_remove ();
767 struct gdb_readline_wrapper_cleanup
769 void (*handler_orig
) (char *);
770 int already_prompted_orig
;
774 gdb_readline_wrapper_cleanup (void *arg
)
776 struct gdb_readline_wrapper_cleanup
*cleanup
= arg
;
778 rl_already_prompted
= cleanup
->already_prompted_orig
;
780 gdb_assert (input_handler
== gdb_readline_wrapper_line
);
781 input_handler
= cleanup
->handler_orig
;
782 gdb_readline_wrapper_result
= NULL
;
783 gdb_readline_wrapper_done
= 0;
785 after_char_processing_hook
= saved_after_char_processing_hook
;
786 saved_after_char_processing_hook
= NULL
;
792 gdb_readline_wrapper (char *prompt
)
794 struct cleanup
*back_to
;
795 struct gdb_readline_wrapper_cleanup
*cleanup
;
798 cleanup
= xmalloc (sizeof (*cleanup
));
799 cleanup
->handler_orig
= input_handler
;
800 input_handler
= gdb_readline_wrapper_line
;
802 cleanup
->already_prompted_orig
= rl_already_prompted
;
804 back_to
= make_cleanup (gdb_readline_wrapper_cleanup
, cleanup
);
806 /* Display our prompt and prevent double prompt display. */
807 display_gdb_prompt (prompt
);
808 rl_already_prompted
= 1;
810 if (after_char_processing_hook
)
811 (*after_char_processing_hook
) ();
812 gdb_assert (after_char_processing_hook
== NULL
);
814 while (gdb_do_one_event () >= 0)
815 if (gdb_readline_wrapper_done
)
818 retval
= gdb_readline_wrapper_result
;
819 do_cleanups (back_to
);
824 /* The current saved history number from operate-and-get-next.
825 This is -1 if not valid. */
826 static int operate_saved_history
= -1;
828 /* This is put on the appropriate hook and helps operate-and-get-next
831 gdb_rl_operate_and_get_next_completion (void)
833 int delta
= where_history () - operate_saved_history
;
835 /* The `key' argument to rl_get_previous_history is ignored. */
836 rl_get_previous_history (delta
, 0);
837 operate_saved_history
= -1;
839 /* readline doesn't automatically update the display for us. */
842 after_char_processing_hook
= NULL
;
843 rl_pre_input_hook
= NULL
;
846 /* This is a gdb-local readline command handler. It accepts the
847 current command line (like RET does) and, if this command was taken
848 from the history, arranges for the next command in the history to
849 appear on the command line when the prompt returns.
850 We ignore the arguments. */
852 gdb_rl_operate_and_get_next (int count
, int key
)
856 /* Use the async hook. */
857 after_char_processing_hook
= gdb_rl_operate_and_get_next_completion
;
859 /* Find the current line, and find the next line to use. */
860 where
= where_history();
862 if ((history_is_stifled () && (history_length
>= history_max_entries
))
863 || (where
>= history_length
- 1))
864 operate_saved_history
= where
;
866 operate_saved_history
= where
+ 1;
868 return rl_newline (1, key
);
871 /* Read one line from the command input stream `instream'
872 into the local static buffer `linebuffer' (whose current length
874 The buffer is made bigger as necessary.
875 Returns the address of the start of the line.
877 NULL is returned for end of file.
879 *If* the instream == stdin & stdin is a terminal, the line read
880 is copied into the file line saver (global var char *line,
881 length linesize) so that it can be duplicated.
883 This routine either uses fancy command line editing or
884 simple input as the user has requested. */
887 command_line_input (char *prompt_arg
, int repeat
, char *annotation_suffix
)
889 static char *linebuffer
= 0;
890 static unsigned linelength
= 0;
894 char *local_prompt
= prompt_arg
;
898 /* The annotation suffix must be non-NULL. */
899 if (annotation_suffix
== NULL
)
900 annotation_suffix
= "";
902 if (annotation_level
> 1 && instream
== stdin
)
904 local_prompt
= alloca ((prompt_arg
== NULL
? 0 : strlen (prompt_arg
))
905 + strlen (annotation_suffix
) + 40);
906 if (prompt_arg
== NULL
)
907 local_prompt
[0] = '\0';
909 strcpy (local_prompt
, prompt_arg
);
910 strcat (local_prompt
, "\n\032\032");
911 strcat (local_prompt
, annotation_suffix
);
912 strcat (local_prompt
, "\n");
918 linebuffer
= (char *) xmalloc (linelength
);
923 /* Control-C quits instantly if typed while in this loop
924 since it should not wait until the user types a newline. */
929 signal (STOP_SIGNAL
, handle_stop_sig
);
934 /* Make sure that all output has been output. Some machines may
935 let you get away with leaving out some of the gdb_flush, but
938 gdb_flush (gdb_stdout
);
939 gdb_flush (gdb_stderr
);
941 if (source_file_name
!= NULL
)
942 ++source_line_number
;
944 if (annotation_level
> 1 && instream
== stdin
)
946 puts_unfiltered ("\n\032\032pre-");
947 puts_unfiltered (annotation_suffix
);
948 puts_unfiltered ("\n");
951 /* Don't use fancy stuff if not talking to stdin. */
952 if (deprecated_readline_hook
&& input_from_terminal_p ())
954 rl
= (*deprecated_readline_hook
) (local_prompt
);
956 else if (command_editing_p
&& input_from_terminal_p ())
958 rl
= gdb_readline_wrapper (local_prompt
);
962 rl
= gdb_readline (local_prompt
);
965 if (annotation_level
> 1 && instream
== stdin
)
967 puts_unfiltered ("\n\032\032post-");
968 puts_unfiltered (annotation_suffix
);
969 puts_unfiltered ("\n");
972 if (!rl
|| rl
== (char *) EOF
)
977 if (strlen (rl
) + 1 + (p
- linebuffer
) > linelength
)
979 linelength
= strlen (rl
) + 1 + (p
- linebuffer
);
980 nline
= (char *) xrealloc (linebuffer
, linelength
);
981 p
+= nline
- linebuffer
;
985 /* Copy line. Don't copy null at end. (Leaves line alone
986 if this was just a newline). */
990 xfree (rl
); /* Allocated in readline. */
992 if (p
== linebuffer
|| *(p
- 1) != '\\')
995 p
--; /* Put on top of '\'. */
996 local_prompt
= (char *) 0;
1001 signal (STOP_SIGNAL
, SIG_DFL
);
1008 #define SERVER_COMMAND_LENGTH 7
1010 (p
- linebuffer
> SERVER_COMMAND_LENGTH
)
1011 && strncmp (linebuffer
, "server ", SERVER_COMMAND_LENGTH
) == 0;
1014 /* Note that we don't set `line'. Between this and the check in
1015 dont_repeat, this insures that repeating will still do the
1018 return linebuffer
+ SERVER_COMMAND_LENGTH
;
1021 /* Do history expansion if that is wished. */
1022 if (history_expansion_p
&& instream
== stdin
1023 && ISATTY (instream
))
1025 char *history_value
;
1028 *p
= '\0'; /* Insert null now. */
1029 expanded
= history_expand (linebuffer
, &history_value
);
1032 /* Print the changes. */
1033 printf_unfiltered ("%s\n", history_value
);
1035 /* If there was an error, call this function again. */
1038 xfree (history_value
);
1039 return command_line_input (prompt_arg
, repeat
,
1042 if (strlen (history_value
) > linelength
)
1044 linelength
= strlen (history_value
) + 1;
1045 linebuffer
= (char *) xrealloc (linebuffer
, linelength
);
1047 strcpy (linebuffer
, history_value
);
1048 p
= linebuffer
+ strlen (linebuffer
);
1050 xfree (history_value
);
1053 /* If we just got an empty line, and that is supposed to repeat the
1054 previous command, return the value in the global buffer. */
1055 if (repeat
&& p
== linebuffer
)
1056 return saved_command_line
;
1057 for (p1
= linebuffer
; *p1
== ' ' || *p1
== '\t'; p1
++);
1059 return saved_command_line
;
1063 /* Add line to history if appropriate. */
1064 if (*linebuffer
&& input_from_terminal_p ())
1065 add_history (linebuffer
);
1067 /* Note: lines consisting solely of comments are added to the command
1068 history. This is useful when you type a command, and then
1069 realize you don't want to execute it quite yet. You can comment
1070 out the command and then later fetch it from the value history
1071 and remove the '#'. The kill ring is probably better, but some
1072 people are in the habit of commenting things out. */
1074 *p1
= '\0'; /* Found a comment. */
1076 /* Save into global buffer if appropriate. */
1079 if (linelength
> saved_command_line_size
)
1081 saved_command_line
= xrealloc (saved_command_line
, linelength
);
1082 saved_command_line_size
= linelength
;
1084 strcpy (saved_command_line
, linebuffer
);
1085 return saved_command_line
;
1091 /* Print the GDB banner. */
1093 print_gdb_version (struct ui_file
*stream
)
1095 /* From GNU coding standards, first line is meant to be easy for a
1096 program to parse, and is just canonical program name and version
1097 number, which starts after last space. */
1099 fprintf_filtered (stream
, "GNU gdb %s%s\n", PKGVERSION
, version
);
1101 /* Second line is a copyright notice. */
1103 fprintf_filtered (stream
,
1104 "Copyright (C) 2013 Free Software Foundation, Inc.\n");
1106 /* Following the copyright is a brief statement that the program is
1107 free software, that users are free to copy and change it on
1108 certain conditions, that it is covered by the GNU GPL, and that
1109 there is no warranty. */
1111 fprintf_filtered (stream
, "\
1112 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\
1113 \nThis is free software: you are free to change and redistribute it.\n\
1114 There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\
1115 and \"show warranty\" for details.\n");
1117 /* After the required info we print the configuration information. */
1119 fprintf_filtered (stream
, "This GDB was configured as \"");
1120 if (strcmp (host_name
, target_name
) != 0)
1122 fprintf_filtered (stream
, "--host=%s --target=%s",
1123 host_name
, target_name
);
1127 fprintf_filtered (stream
, "%s", host_name
);
1129 fprintf_filtered (stream
, "\".\n\
1130 Type \"show configuration\" for configuration details.");
1132 if (REPORT_BUGS_TO
[0])
1134 fprintf_filtered (stream
,
1135 _("\nFor bug reporting instructions, please see:\n"));
1136 fprintf_filtered (stream
, "%s.\n", REPORT_BUGS_TO
);
1138 fprintf_filtered (stream
,
1139 _("Find the GDB manual and other documentation \
1140 resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n"));
1141 fprintf_filtered (stream
, _("For help, type \"help\".\n"));
1142 fprintf_filtered (stream
, _("Type \"apropos word\" to search for \
1143 commands related to \"word\"."));
1146 /* Print the details of GDB build-time configuration. */
1148 print_gdb_configuration (struct ui_file
*stream
)
1150 fprintf_filtered (stream
, _("\
1151 This GDB was configured as follows:\n\
1152 configure --host=%s --target=%s\n\
1153 "), host_name
, target_name
);
1154 fprintf_filtered (stream
, _("\
1155 --with-auto-load-dir=%s\n\
1156 --with-auto-load-safe-path=%s\n\
1157 "), AUTO_LOAD_DIR
, AUTO_LOAD_SAFE_PATH
);
1159 fprintf_filtered (stream
, _("\
1163 fprintf_filtered (stream
, _("\
1168 fprintf_filtered (stream
, _("\
1169 --with-gdb-datadir=%s%s\n\
1170 "), GDB_DATADIR
, GDB_DATADIR_RELOCATABLE
? " (relocatable)" : "");
1172 fprintf_filtered (stream
, _("\
1173 --with-iconv-bin=%s%s\n\
1174 "), ICONV_BIN
, ICONV_BIN_RELOCATABLE
? " (relocatable)" : "");
1176 if (JIT_READER_DIR
[0])
1177 fprintf_filtered (stream
, _("\
1178 --with-jit-reader-dir=%s%s\n\
1179 "), JIT_READER_DIR
, JIT_READER_DIR_RELOCATABLE
? " (relocatable)" : "");
1180 #if HAVE_LIBUNWIND_IA64_H
1181 fprintf_filtered (stream
, _("\
1182 --with-libunwind-ia64\n\
1185 fprintf_filtered (stream
, _("\
1186 --without-libunwind-ia64\n\
1190 fprintf_filtered (stream
, _("\
1194 fprintf_filtered (stream
, _("\
1198 #ifdef WITH_PYTHON_PATH
1199 fprintf_filtered (stream
, _("\
1200 --with-python=%s%s\n\
1201 "), WITH_PYTHON_PATH
, PYTHON_PATH_RELOCATABLE
? " (relocatable)" : "");
1204 fprintf_filtered (stream
, _("\
1205 --with-relocated-sources=%s\n\
1209 fprintf_filtered (stream
, _("\
1210 --with-separate-debug-dir=%s%s\n\
1211 "), DEBUGDIR
, DEBUGDIR_RELOCATABLE
? " (relocatable)" : "");
1212 if (TARGET_SYSTEM_ROOT
[0])
1213 fprintf_filtered (stream
, _("\
1214 --with-sysroot=%s%s\n\
1215 "), TARGET_SYSTEM_ROOT
, TARGET_SYSTEM_ROOT_RELOCATABLE
? " (relocatable)" : "");
1216 if (SYSTEM_GDBINIT
[0])
1217 fprintf_filtered (stream
, _("\
1218 --with-system-gdbinit=%s%s\n\
1219 "), SYSTEM_GDBINIT
, SYSTEM_GDBINIT_RELOCATABLE
? " (relocatable)" : "");
1221 fprintf_filtered (stream
, _("\
1225 fprintf_filtered (stream
, _("\
1229 #if HAVE_LIBBABELTRACE
1230 fprintf_filtered (stream
, _("\
1231 --with-babeltrace\n\
1234 fprintf_filtered (stream
, _("\
1235 --without-babeltrace\n\
1238 /* We assume "relocatable" will be printed at least once, thus we always
1239 print this text. It's a reasonably safe assumption for now. */
1240 fprintf_filtered (stream
, _("\n\
1241 (\"Relocatable\" means the directory can be moved with the GDB installation\n\
1242 tree, and GDB will still find it.)\n\
1247 /* The current top level prompt, settable with "set prompt", and/or
1248 with the python `gdb.prompt_hook' hook. */
1249 static char *top_prompt
;
1251 /* Access method for the GDB prompt string. */
1259 /* Set method for the GDB prompt string. */
1262 set_prompt (const char *s
)
1264 char *p
= xstrdup (s
);
1277 /* Callback for iterate_over_inferiors. Kills or detaches the given
1278 inferior, depending on how we originally gained control of it. */
1281 kill_or_detach (struct inferior
*inf
, void *args
)
1283 struct qt_args
*qt
= args
;
1284 struct thread_info
*thread
;
1289 thread
= any_thread_of_process (inf
->pid
);
1292 switch_to_thread (thread
->ptid
);
1294 /* Leave core files alone. */
1295 if (target_has_execution
)
1297 if (inf
->attach_flag
)
1298 target_detach (qt
->args
, qt
->from_tty
);
1307 /* Callback for iterate_over_inferiors. Prints info about what GDB
1308 will do to each inferior on a "quit". ARG points to a struct
1309 ui_out where output is to be collected. */
1312 print_inferior_quit_action (struct inferior
*inf
, void *arg
)
1314 struct ui_file
*stb
= arg
;
1319 if (inf
->attach_flag
)
1320 fprintf_filtered (stb
,
1321 _("\tInferior %d [%s] will be detached.\n"), inf
->num
,
1322 target_pid_to_str (pid_to_ptid (inf
->pid
)));
1324 fprintf_filtered (stb
,
1325 _("\tInferior %d [%s] will be killed.\n"), inf
->num
,
1326 target_pid_to_str (pid_to_ptid (inf
->pid
)));
1331 /* If necessary, make the user confirm that we should quit. Return
1332 non-zero if we should quit, zero if we shouldn't. */
1337 struct ui_file
*stb
;
1338 struct cleanup
*old_chain
;
1342 /* Don't even ask if we're only debugging a core file inferior. */
1343 if (!have_live_inferiors ())
1346 /* Build the query string as a single string. */
1347 stb
= mem_fileopen ();
1348 old_chain
= make_cleanup_ui_file_delete (stb
);
1350 fprintf_filtered (stb
, _("A debugging session is active.\n\n"));
1351 iterate_over_inferiors (print_inferior_quit_action
, stb
);
1352 fprintf_filtered (stb
, _("\nQuit anyway? "));
1354 str
= ui_file_xstrdup (stb
, NULL
);
1355 make_cleanup (xfree
, str
);
1357 qr
= query ("%s", str
);
1358 do_cleanups (old_chain
);
1362 /* Quit without asking for confirmation. */
1365 quit_force (char *args
, int from_tty
)
1369 volatile struct gdb_exception ex
;
1371 /* An optional expression may be used to cause gdb to terminate with the
1372 value of that expression. */
1375 struct value
*val
= parse_and_eval (args
);
1377 exit_code
= (int) value_as_long (val
);
1379 else if (return_child_result
)
1380 exit_code
= return_child_result_value
;
1383 qt
.from_tty
= from_tty
;
1385 /* Wrappers to make the code below a bit more readable. */
1387 TRY_CATCH (ex, RETURN_MASK_ALL)
1389 #define DO_PRINT_EX \
1390 if (ex.reason < 0) \
1391 exception_print (gdb_stderr, ex)
1393 /* We want to handle any quit errors and exit regardless. */
1395 /* Get out of tfind mode, and kill or detach all inferiors. */
1398 disconnect_tracing ();
1399 iterate_over_inferiors (kill_or_detach
, &qt
);
1403 /* Give all pushed targets a chance to do minimal cleanup, and pop
1411 /* Save the history information if it is appropriate to do so. */
1414 if (write_history_p
&& history_filename
1415 && input_from_terminal_p ())
1416 write_history (history_filename
);
1420 /* Do any final cleanups before exiting. */
1423 do_final_cleanups (all_cleanups ());
1430 /* Returns whether GDB is running on a terminal and input is
1431 currently coming from that terminal. */
1434 input_from_terminal_p (void)
1439 if (gdb_has_a_terminal () && instream
== stdin
)
1442 /* If INSTREAM is unset, and we are not in a user command, we
1443 must be in Insight. That's like having a terminal, for our
1445 if (instream
== NULL
&& !in_user_command
)
1452 dont_repeat_command (char *ignored
, int from_tty
)
1454 /* Can't call dont_repeat here because we're not necessarily reading
1456 *saved_command_line
= 0;
1459 /* Functions to manipulate command line editing control variables. */
1461 /* Number of commands to print in each call to show_commands. */
1462 #define Hist_print 10
1464 show_commands (char *args
, int from_tty
)
1466 /* Index for history commands. Relative to history_base. */
1469 /* Number of the history entry which we are planning to display next.
1470 Relative to history_base. */
1473 /* Print out some of the commands from the command history. */
1477 if (args
[0] == '+' && args
[1] == '\0')
1478 /* "info editing +" should print from the stored position. */
1481 /* "info editing <exp>" should print around command number <exp>. */
1482 num
= (parse_and_eval_long (args
) - history_base
) - Hist_print
/ 2;
1484 /* "show commands" means print the last Hist_print commands. */
1487 num
= history_length
- Hist_print
;
1493 /* If there are at least Hist_print commands, we want to display the last
1494 Hist_print rather than, say, the last 6. */
1495 if (history_length
- num
< Hist_print
)
1497 num
= history_length
- Hist_print
;
1503 offset
< num
+ Hist_print
&& offset
< history_length
;
1506 printf_filtered ("%5d %s\n", history_base
+ offset
,
1507 (history_get (history_base
+ offset
))->line
);
1510 /* The next command we want to display is the next one that we haven't
1514 /* If the user repeats this command with return, it should do what
1515 "show commands +" does. This is unnecessary if arg is null,
1516 because "show commands +" is not useful after "show commands". */
1517 if (from_tty
&& args
)
1524 /* Called by do_setshow_command. */
1526 set_history_size_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1528 /* Readline's history interface works with 'int', so it can only
1529 handle history sizes up to INT_MAX. The command itself is
1530 uinteger, so UINT_MAX means "unlimited", but we only get that if
1531 the user does "set history size 0" -- "set history size <UINT_MAX>"
1532 throws out-of-range. */
1533 if (history_size_setshow_var
> INT_MAX
1534 && history_size_setshow_var
!= UINT_MAX
)
1536 unsigned int new_value
= history_size_setshow_var
;
1538 /* Restore previous value before throwing. */
1539 if (history_is_stifled ())
1540 history_size_setshow_var
= history_max_entries
;
1542 history_size_setshow_var
= UINT_MAX
;
1544 error (_("integer %u out of range"), new_value
);
1547 /* Commit the new value to readline's history. */
1548 if (history_size_setshow_var
== UINT_MAX
)
1549 unstifle_history ();
1551 stifle_history (history_size_setshow_var
);
1555 set_history (char *args
, int from_tty
)
1557 printf_unfiltered (_("\"set history\" must be followed "
1558 "by the name of a history subcommand.\n"));
1559 help_list (sethistlist
, "set history ", -1, gdb_stdout
);
1563 show_history (char *args
, int from_tty
)
1565 cmd_show_list (showhistlist
, from_tty
, "");
1568 int info_verbose
= 0; /* Default verbose msgs off. */
1570 /* Called by do_setshow_command. An elaborate joke. */
1572 set_verbose (char *args
, int from_tty
, struct cmd_list_element
*c
)
1574 const char *cmdname
= "verbose";
1575 struct cmd_list_element
*showcmd
;
1577 showcmd
= lookup_cmd_1 (&cmdname
, showlist
, NULL
, 1);
1578 gdb_assert (showcmd
!= NULL
&& showcmd
!= CMD_LIST_AMBIGUOUS
);
1582 c
->doc
= "Set verbose printing of informational messages.";
1583 showcmd
->doc
= "Show verbose printing of informational messages.";
1587 c
->doc
= "Set verbosity.";
1588 showcmd
->doc
= "Show verbosity.";
1592 /* Init the history buffer. Note that we are called after the init file(s)
1593 have been read so that the user can change the history file via his
1594 .gdbinit file (for instance). The GDBHISTFILE environment variable
1595 overrides all of this. */
1602 tmpenv
= getenv ("HISTSIZE");
1607 var
= atoi (tmpenv
);
1610 /* Prefer ending up with no history rather than overflowing
1611 readline's history interface, which uses signed 'int'
1616 history_size_setshow_var
= var
;
1618 /* If the init file hasn't set a size yet, pick the default. */
1619 else if (history_size_setshow_var
== 0)
1620 history_size_setshow_var
= 256;
1622 /* Note that unlike "set history size 0", "HISTSIZE=0" really sets
1623 the history size to 0... */
1624 stifle_history (history_size_setshow_var
);
1626 tmpenv
= getenv ("GDBHISTFILE");
1628 history_filename
= xstrdup (tmpenv
);
1629 else if (!history_filename
)
1631 /* We include the current directory so that if the user changes
1632 directories the file written will be the same as the one
1635 /* No leading dots in file names are allowed on MSDOS. */
1636 history_filename
= concat (current_directory
, "/_gdb_history",
1639 history_filename
= concat (current_directory
, "/.gdb_history",
1643 read_history (history_filename
);
1647 show_prompt (struct ui_file
*file
, int from_tty
,
1648 struct cmd_list_element
*c
, const char *value
)
1650 fprintf_filtered (file
, _("Gdb's prompt is \"%s\".\n"), value
);
1654 show_async_command_editing_p (struct ui_file
*file
, int from_tty
,
1655 struct cmd_list_element
*c
, const char *value
)
1657 fprintf_filtered (file
, _("Editing of command lines as "
1658 "they are typed is %s.\n"),
1663 show_annotation_level (struct ui_file
*file
, int from_tty
,
1664 struct cmd_list_element
*c
, const char *value
)
1666 fprintf_filtered (file
, _("Annotation_level is %s.\n"), value
);
1670 show_exec_done_display_p (struct ui_file
*file
, int from_tty
,
1671 struct cmd_list_element
*c
, const char *value
)
1673 fprintf_filtered (file
, _("Notification of completion for "
1674 "asynchronous execution commands is %s.\n"),
1678 /* "set" command for the gdb_datadir configuration variable. */
1681 set_gdb_datadir (char *args
, int from_tty
, struct cmd_list_element
*c
)
1683 observer_notify_gdb_datadir_changed ();
1687 set_history_filename (char *args
, int from_tty
, struct cmd_list_element
*c
)
1689 /* We include the current directory so that if the user changes
1690 directories the file written will be the same as the one
1692 if (!IS_ABSOLUTE_PATH (history_filename
))
1693 history_filename
= reconcat (history_filename
, current_directory
, "/",
1694 history_filename
, (char *) NULL
);
1700 /* Initialize the prompt to a simple "(gdb) " prompt or to whatever
1701 the DEFAULT_PROMPT is. */
1702 set_prompt (DEFAULT_PROMPT
);
1704 /* Set things up for annotation_level > 1, if the user ever decides
1706 async_annotation_suffix
= "prompt";
1708 /* Set the important stuff up for command editing. */
1709 command_editing_p
= 1;
1710 history_expansion_p
= 0;
1711 write_history_p
= 0;
1713 /* Setup important stuff for command line editing. */
1714 rl_completion_word_break_hook
= gdb_completion_word_break_characters
;
1715 rl_completion_entry_function
= readline_line_completion_function
;
1716 rl_completer_word_break_characters
= default_word_break_characters ();
1717 rl_completer_quote_characters
= get_gdb_completer_quote_characters ();
1718 rl_readline_name
= "gdb";
1719 rl_terminal_name
= getenv ("TERM");
1721 /* The name for this defun comes from Bash, where it originated.
1722 15 is Control-o, the same binding this function has in Bash. */
1723 rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next
, 15);
1725 add_setshow_string_cmd ("prompt", class_support
,
1727 _("Set gdb's prompt"),
1728 _("Show gdb's prompt"),
1731 &setlist
, &showlist
);
1733 add_com ("dont-repeat", class_support
, dont_repeat_command
, _("\
1734 Don't repeat this command.\nPrimarily \
1735 used inside of user-defined commands that should not be repeated when\n\
1738 add_setshow_boolean_cmd ("editing", class_support
,
1739 &async_command_editing_p
, _("\
1740 Set editing of command lines as they are typed."), _("\
1741 Show editing of command lines as they are typed."), _("\
1742 Use \"on\" to enable the editing, and \"off\" to disable it.\n\
1743 Without an argument, command line editing is enabled. To edit, use\n\
1744 EMACS-like or VI-like commands like control-P or ESC."),
1745 set_async_editing_command
,
1746 show_async_command_editing_p
,
1747 &setlist
, &showlist
);
1749 add_setshow_boolean_cmd ("save", no_class
, &write_history_p
, _("\
1750 Set saving of the history record on exit."), _("\
1751 Show saving of the history record on exit."), _("\
1752 Use \"on\" to enable the saving, and \"off\" to disable it.\n\
1753 Without an argument, saving is enabled."),
1755 show_write_history_p
,
1756 &sethistlist
, &showhistlist
);
1758 add_setshow_uinteger_cmd ("size", no_class
, &history_size_setshow_var
, _("\
1759 Set the size of the command history,"), _("\
1760 Show the size of the command history,"), _("\
1761 ie. the number of previous commands to keep a record of.\n\
1762 If set to \"unlimited\", the number of commands kept in the history\n\
1763 list is unlimited. This defaults to the value of the environment\n\
1764 variable \"HISTSIZE\", or to 256 if this variable is not set."),
1765 set_history_size_command
,
1767 &sethistlist
, &showhistlist
);
1769 add_setshow_filename_cmd ("filename", no_class
, &history_filename
, _("\
1770 Set the filename in which to record the command history"), _("\
1771 Show the filename in which to record the command history"), _("\
1772 (the list of previous commands of which a record is kept)."),
1773 set_history_filename
,
1774 show_history_filename
,
1775 &sethistlist
, &showhistlist
);
1777 add_setshow_boolean_cmd ("confirm", class_support
, &confirm
, _("\
1778 Set whether to confirm potentially dangerous operations."), _("\
1779 Show whether to confirm potentially dangerous operations."), NULL
,
1782 &setlist
, &showlist
);
1784 add_setshow_zinteger_cmd ("annotate", class_obscure
, &annotation_level
, _("\
1785 Set annotation_level."), _("\
1786 Show annotation_level."), _("\
1787 0 == normal; 1 == fullname (for use when running under emacs)\n\
1788 2 == output annotated suitably for use by programs that control GDB."),
1790 show_annotation_level
,
1791 &setlist
, &showlist
);
1793 add_setshow_boolean_cmd ("exec-done-display", class_support
,
1794 &exec_done_display_p
, _("\
1795 Set notification of completion for asynchronous execution commands."), _("\
1796 Show notification of completion for asynchronous execution commands."), _("\
1797 Use \"on\" to enable the notification, and \"off\" to disable it."),
1799 show_exec_done_display_p
,
1800 &setlist
, &showlist
);
1802 add_setshow_filename_cmd ("data-directory", class_maintenance
,
1803 &gdb_datadir
, _("Set GDB's data directory."),
1804 _("Show GDB's data directory."),
1806 When set, GDB uses the specified path to search for data files."),
1807 set_gdb_datadir
, NULL
,
1813 gdb_init (char *argv0
)
1815 if (pre_init_ui_hook
)
1816 pre_init_ui_hook ();
1818 /* Run the init function of each source file. */
1821 /* Make sure we return to the original directory upon exit, come
1822 what may, since the OS doesn't do that for us. */
1823 make_final_cleanup (do_chdir_cleanup
, xstrdup (current_directory
));
1826 init_cmd_lists (); /* This needs to be done first. */
1827 initialize_targets (); /* Setup target_terminal macros for utils.c. */
1828 initialize_utils (); /* Make errors and warnings possible. */
1830 /* Here is where we call all the _initialize_foo routines. */
1831 initialize_all_files ();
1833 /* This creates the current_program_space. Do this after all the
1834 _initialize_foo routines have had a chance to install their
1835 per-sspace data keys. Also do this before
1836 initialize_current_architecture is called, because it accesses
1837 exec_bfd of the current program space. */
1838 initialize_progspace ();
1839 initialize_inferiors ();
1840 initialize_current_architecture ();
1842 initialize_event_loop ();
1843 init_main (); /* But that omits this file! Do it now. */
1845 initialize_stdin_serial ();
1847 async_init_signals ();
1849 /* We need a default language for parsing expressions, so simple
1850 things like "set width 0" won't fail if no language is explicitly
1851 set in a config file or implicitly set by reading an executable
1853 set_language (language_c
);
1854 expected_language
= current_language
; /* Don't warn about the change. */
1856 /* Allow another UI to initialize. If the UI fails to initialize,
1857 and it wants GDB to revert to the CLI, it should clear
1858 deprecated_init_ui_hook. */
1859 if (deprecated_init_ui_hook
)
1860 deprecated_init_ui_hook (argv0
);
1863 /* Python initialization can require various commands to be
1864 installed. For example "info pretty-printer" needs the "info"
1865 prefix to be installed. Keep things simple and just do final
1866 python initialization here. */
1867 finish_python_initialization ();