1 /* Top level stuff for GDB, the GNU debugger.
3 Copyright (C) 1986-2014 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"
29 #include "exceptions.h"
32 #include "target-dcache.h"
33 #include "breakpoint.h"
35 #include "expression.h"
38 #include "terminal.h" /* For job_control. */
40 #include "completer.h"
45 #include "gdb_assert.h"
47 #include "event-loop.h"
48 #include "gdbthread.h"
49 #include "extension.h"
53 #include "filenames.h"
55 /* readline include files. */
56 #include "readline/readline.h"
57 #include "readline/history.h"
59 /* readline defines this. */
62 #include <sys/types.h>
64 #include "event-top.h"
70 #include "tracepoint.h"
72 extern void initialize_all_files (void);
74 #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt
75 #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix
76 #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix
78 /* Default command line prompt. This is overriden in some configs. */
80 #ifndef DEFAULT_PROMPT
81 #define DEFAULT_PROMPT "(gdb) "
84 /* Initialization file name for gdb. This is host-dependent. */
86 const char gdbinit
[] = GDBINIT
;
88 int inhibit_gdbinit
= 0;
90 extern char lang_frame_mismatch_warn
[]; /* language.c */
92 /* Flag for whether we want to confirm potentially dangerous
93 operations. Default is yes. */
98 show_confirm (struct ui_file
*file
, int from_tty
,
99 struct cmd_list_element
*c
, const char *value
)
101 fprintf_filtered (file
, _("Whether to confirm potentially "
102 "dangerous operations is %s.\n"),
106 /* stdio stream that command input is being read from. Set to stdin
107 normally. Set by source_command to the file we are sourcing. Set
108 to NULL if we are executing a user-defined command or interacting
113 /* Flag to indicate whether a user defined command is currently running. */
117 /* Current working directory. */
119 char *current_directory
;
121 /* The directory name is actually stored here (usually). */
122 char gdb_dirbuf
[1024];
124 /* Function to call before reading a command, if nonzero.
125 The function receives two args: an input stream,
126 and a prompt string. */
128 void (*window_hook
) (FILE *, char *);
130 /* Buffer used for reading command lines, and the size
131 allocated for it so far. */
133 char *saved_command_line
;
134 int saved_command_line_size
= 100;
136 /* Nonzero if the current command is modified by "server ". This
137 affects things like recording into the command history, commands
138 repeating on RETURN, etc. This is so a user interface (emacs, GUI,
139 whatever) can issue its own commands and also send along commands
140 from the user, and have the user not notice that the user interface
141 is issuing commands too. */
144 /* Timeout limit for response from target. */
146 /* The default value has been changed many times over the years. It
147 was originally 5 seconds. But that was thought to be a long time
148 to sit and wait, so it was changed to 2 seconds. That was thought
149 to be plenty unless the connection was going through some terminal
150 server or multiplexer or other form of hairy serial connection.
152 In mid-1996, remote_timeout was moved from remote.c to top.c and
153 it began being used in other remote-* targets. It appears that the
154 default was changed to 20 seconds at that time, perhaps because the
155 Renesas E7000 ICE didn't always respond in a timely manner.
157 But if 5 seconds is a long time to sit and wait for retransmissions,
158 20 seconds is far worse. This demonstrates the difficulty of using
159 a single variable for all protocol timeouts.
161 As remote.c is used much more than remote-e7000.c, it was changed
162 back to 2 seconds in 1999. */
164 int remote_timeout
= 2;
166 /* Non-zero tells remote* modules to output debugging info. */
168 int remote_debug
= 0;
170 /* Sbrk location on entry to main. Used for statistics only. */
175 /* Hooks for alternate command interfaces. */
177 /* Called after most modules have been initialized, but before taking
180 If the UI fails to initialize and it wants GDB to continue using
181 the default UI, then it should clear this hook before returning. */
183 void (*deprecated_init_ui_hook
) (char *argv0
);
185 /* This hook is called from within gdb's many mini-event loops which
186 could steal control from a real user interface's event loop. It
187 returns non-zero if the user is requesting a detach, zero
190 int (*deprecated_ui_loop_hook
) (int);
193 /* Called from print_frame_info to list the line we stopped in. */
195 void (*deprecated_print_frame_info_listing_hook
) (struct symtab
* s
,
199 /* Replaces most of query. */
201 int (*deprecated_query_hook
) (const char *, va_list);
203 /* Replaces most of warning. */
205 void (*deprecated_warning_hook
) (const char *, va_list);
207 /* These three functions support getting lines of text from the user.
208 They are used in sequence. First deprecated_readline_begin_hook is
209 called with a text string that might be (for example) a message for
210 the user to type in a sequence of commands to be executed at a
211 breakpoint. If this function calls back to a GUI, it might take
212 this opportunity to pop up a text interaction window with this
213 message. Next, deprecated_readline_hook is called with a prompt
214 that is emitted prior to collecting the user input. It can be
215 called multiple times. Finally, deprecated_readline_end_hook is
216 called to notify the GUI that we are done with the interaction
217 window and it can close it. */
219 void (*deprecated_readline_begin_hook
) (char *, ...);
220 char *(*deprecated_readline_hook
) (char *);
221 void (*deprecated_readline_end_hook
) (void);
223 /* Called as appropriate to notify the interface that we have attached
224 to or detached from an already running process. */
226 void (*deprecated_attach_hook
) (void);
227 void (*deprecated_detach_hook
) (void);
229 /* Called during long calculations to allow GUI to repair window
230 damage, and to check for stop buttons, etc... */
232 void (*deprecated_interactive_hook
) (void);
234 /* Tell the GUI someone changed the register REGNO. -1 means
235 that the caller does not know which register changed or
236 that several registers have changed (see value_assign). */
237 void (*deprecated_register_changed_hook
) (int regno
);
239 /* Called when going to wait for the target. Usually allows the GUI
240 to run while waiting for target events. */
242 ptid_t (*deprecated_target_wait_hook
) (ptid_t ptid
,
243 struct target_waitstatus
*status
,
246 /* Used by UI as a wrapper around command execution. May do various
247 things like enabling/disabling buttons, etc... */
249 void (*deprecated_call_command_hook
) (struct cmd_list_element
* c
,
250 char *cmd
, int from_tty
);
252 /* Called when the current thread changes. Argument is thread id. */
254 void (*deprecated_context_hook
) (int id
);
256 /* Handler for SIGHUP. */
259 /* NOTE 1999-04-29: This function will be static again, once we modify
260 gdb to use the event loop as the default command loop and we merge
261 event-top.c into this file, top.c. */
265 /* Stop asking user for confirmation --- we're exiting. This
266 prevents asking the user dumb questions. */
268 quit_command ((char *) 0, 0);
270 #endif /* defined SIGHUP */
272 /* Line number we are currently in, in a file which is being sourced. */
273 /* NOTE 1999-04-29: This variable will be static again, once we modify
274 gdb to use the event loop as the default command loop and we merge
275 event-top.c into this file, top.c. */
276 /* static */ int source_line_number
;
278 /* Name of the file we are sourcing. */
279 /* NOTE 1999-04-29: This variable will be static again, once we modify
280 gdb to use the event loop as the default command loop and we merge
281 event-top.c into this file, top.c. */
282 /* static */ const char *source_file_name
;
284 /* Clean up on error during a "source" command (or execution of a
285 user-defined command). */
288 do_restore_instream_cleanup (void *stream
)
290 /* Restore the previous input stream. */
294 /* Read commands from STREAM. */
296 read_command_file (FILE *stream
)
298 struct cleanup
*cleanups
;
300 cleanups
= make_cleanup (do_restore_instream_cleanup
, instream
);
303 do_cleanups (cleanups
);
306 void (*pre_init_ui_hook
) (void);
310 do_chdir_cleanup (void *old_dir
)
318 prepare_execute_command (void)
321 struct cleanup
*cleanup
;
323 mark
= value_mark ();
324 cleanup
= make_cleanup_value_free_to_mark (mark
);
326 /* With multiple threads running while the one we're examining is
327 stopped, the dcache can get stale without us being able to detect
328 it. For the duration of the command, though, use the dcache to
329 help things like backtrace. */
331 target_dcache_invalidate ();
336 /* Tell the user if the language has changed (except first time) after
337 executing a command. */
340 check_frame_language_change (void)
342 static int warned
= 0;
344 /* First make sure that a new frame has been selected, in case the
345 command or the hooks changed the program state. */
346 deprecated_safe_get_selected_frame ();
347 if (current_language
!= expected_language
)
349 if (language_mode
== language_mode_auto
&& info_verbose
)
351 language_info (1); /* Print what changed. */
356 /* Warn the user if the working language does not match the language
357 of the current frame. Only warn the user if we are actually
358 running the program, i.e. there is a stack. */
359 /* FIXME: This should be cacheing the frame and only running when
360 the frame changes. */
362 if (has_stack_frames ())
366 flang
= get_frame_language ();
368 && flang
!= language_unknown
369 && flang
!= current_language
->la_language
)
371 printf_filtered ("%s\n", lang_frame_mismatch_warn
);
377 /* Execute the line P as a command, in the current user context.
378 Pass FROM_TTY as second argument to the defining function. */
381 execute_command (char *p
, int from_tty
)
383 struct cleanup
*cleanup_if_error
, *cleanup
;
384 struct cmd_list_element
*c
;
387 cleanup_if_error
= make_bpstat_clear_actions_cleanup ();
388 cleanup
= prepare_execute_command ();
390 /* Force cleanup of any alloca areas if using C alloca instead of
394 /* This can happen when command_line_input hits end of file. */
397 do_cleanups (cleanup
);
398 discard_cleanups (cleanup_if_error
);
402 target_log_command (p
);
404 while (*p
== ' ' || *p
== '\t')
410 int was_sync
= sync_execution
;
414 /* If trace-commands is set then this will print this command. */
415 print_command_trace (p
);
417 c
= lookup_cmd (&cmd
, cmdlist
, "", 0, 1);
420 /* Pass null arg rather than an empty one. */
423 /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy
424 while the is_complete_command(cfunc) test is just plain
425 bogus. They should both be replaced by a test of the form
426 c->strip_trailing_white_space_p. */
427 /* NOTE: cagney/2002-02-02: The function.cfunc in the below
428 can't be replaced with func. This is because it is the
429 cfunc, and not the func, that has the value that the
430 is_complete_command hack is testing for. */
431 /* Clear off trailing whitespace, except for set and complete
434 && c
->type
!= set_cmd
435 && !is_complete_command (c
))
437 p
= arg
+ strlen (arg
) - 1;
438 while (p
>= arg
&& (*p
== ' ' || *p
== '\t'))
443 /* If this command has been pre-hooked, run the hook first. */
444 execute_cmd_pre_hook (c
);
446 if (c
->deprecated_warn_user
)
447 deprecated_cmd_warning (line
);
449 /* c->user_commands would be NULL in the case of a python command. */
450 if (c
->class == class_user
&& c
->user_commands
)
451 execute_user_command (c
, arg
);
452 else if (c
->type
== set_cmd
)
453 do_set_command (arg
, from_tty
, c
);
454 else if (c
->type
== show_cmd
)
455 do_show_command (arg
, from_tty
, c
);
456 else if (!cmd_func_p (c
))
457 error (_("That is not a command, just a help topic."));
458 else if (deprecated_call_command_hook
)
459 deprecated_call_command_hook (c
, arg
, from_tty
);
461 cmd_func (c
, arg
, from_tty
);
463 /* If the interpreter is in sync mode (we're running a user
464 command's list, running command hooks or similars), and we
465 just ran a synchronous command that started the target, wait
466 for that command to end. */
467 if (!interpreter_async
&& !was_sync
&& sync_execution
)
469 while (gdb_do_one_event () >= 0)
474 /* If this command has been post-hooked, run the hook last. */
475 execute_cmd_post_hook (c
);
479 check_frame_language_change ();
481 do_cleanups (cleanup
);
482 discard_cleanups (cleanup_if_error
);
485 /* Run execute_command for P and FROM_TTY. Capture its output into the
486 returned string, do not display it to the screen. BATCH_FLAG will be
487 temporarily set to true. */
490 execute_command_to_string (char *p
, int from_tty
)
492 struct ui_file
*str_file
;
493 struct cleanup
*cleanup
;
496 /* GDB_STDOUT should be better already restored during these
497 restoration callbacks. */
498 cleanup
= set_batch_flag_and_make_cleanup_restore_page_info ();
500 make_cleanup_restore_integer (&interpreter_async
);
501 interpreter_async
= 0;
503 str_file
= mem_fileopen ();
505 make_cleanup_ui_file_delete (str_file
);
506 make_cleanup_restore_ui_file (&gdb_stdout
);
507 make_cleanup_restore_ui_file (&gdb_stderr
);
508 make_cleanup_restore_ui_file (&gdb_stdlog
);
509 make_cleanup_restore_ui_file (&gdb_stdtarg
);
510 make_cleanup_restore_ui_file (&gdb_stdtargerr
);
512 if (ui_out_redirect (current_uiout
, str_file
) < 0)
513 warning (_("Current output protocol does not support redirection"));
515 make_cleanup_ui_out_redirect_pop (current_uiout
);
517 gdb_stdout
= str_file
;
518 gdb_stderr
= str_file
;
519 gdb_stdlog
= str_file
;
520 gdb_stdtarg
= str_file
;
521 gdb_stdtargerr
= str_file
;
523 execute_command (p
, from_tty
);
525 retval
= ui_file_xstrdup (str_file
, NULL
);
527 do_cleanups (cleanup
);
532 /* Read commands from `instream' and execute them
533 until end of file or error reading instream. */
538 struct cleanup
*old_chain
;
540 int stdin_is_tty
= ISATTY (stdin
);
542 while (instream
&& !feof (instream
))
544 if (window_hook
&& instream
== stdin
)
545 (*window_hook
) (instream
, get_prompt ());
548 if (instream
== stdin
&& stdin_is_tty
)
549 reinitialize_more_filter ();
550 old_chain
= make_cleanup (null_cleanup
, 0);
552 /* Get a command-line. This calls the readline package. */
553 command
= command_line_input (instream
== stdin
?
554 get_prompt () : (char *) NULL
,
555 instream
== stdin
, "prompt");
558 do_cleanups (old_chain
);
562 make_command_stats_cleanup (1);
564 /* Do not execute commented lines. */
565 if (command
[0] != '#')
567 execute_command (command
, instream
== stdin
);
569 /* Do any commands attached to breakpoint we are stopped at. */
570 bpstat_do_actions ();
572 do_cleanups (old_chain
);
576 /* When nonzero, cause dont_repeat to do nothing. This should only be
577 set via prevent_dont_repeat. */
579 static int suppress_dont_repeat
= 0;
581 /* Commands call this if they do not want to be repeated by null lines. */
586 if (suppress_dont_repeat
|| server_command
)
589 /* If we aren't reading from standard input, we are saving the last
590 thing read from stdin in line and don't want to delete it. Null
591 lines won't repeat here in any case. */
592 if (instream
== stdin
)
593 *saved_command_line
= 0;
596 /* Prevent dont_repeat from working, and return a cleanup that
597 restores the previous state. */
600 prevent_dont_repeat (void)
602 struct cleanup
*result
= make_cleanup_restore_integer (&suppress_dont_repeat
);
604 suppress_dont_repeat
= 1;
609 /* Read a line from the stream "instream" without command line editing.
611 It prints PROMPT_ARG once at the start.
612 Action is compatible with "readline", e.g. space for the result is
613 malloc'd and should be freed by the caller.
615 A NULL return means end of file. */
617 gdb_readline (char *prompt_arg
)
622 int result_size
= 80;
626 /* Don't use a _filtered function here. It causes the assumed
627 character position to be off, since the newline we read from
628 the user is not accounted for. */
629 fputs_unfiltered (prompt_arg
, gdb_stdout
);
630 gdb_flush (gdb_stdout
);
633 result
= (char *) xmalloc (result_size
);
637 /* Read from stdin if we are executing a user defined command.
638 This is the right thing for prompt_for_continue, at least. */
639 c
= fgetc (instream
? instream
: stdin
);
644 /* The last line does not end with a newline. Return it, and
645 if we are called again fgetc will still return EOF and
646 we'll return NULL then. */
654 if (input_index
> 0 && result
[input_index
- 1] == '\r')
659 result
[input_index
++] = c
;
660 while (input_index
>= result_size
)
663 result
= (char *) xrealloc (result
, result_size
);
667 result
[input_index
++] = '\0';
671 /* Variables which control command line editing and history
672 substitution. These variables are given default values at the end
674 static int command_editing_p
;
676 /* NOTE 1999-04-29: This variable will be static again, once we modify
677 gdb to use the event loop as the default command loop and we merge
678 event-top.c into this file, top.c. */
680 /* static */ int history_expansion_p
;
682 static int write_history_p
;
684 show_write_history_p (struct ui_file
*file
, int from_tty
,
685 struct cmd_list_element
*c
, const char *value
)
687 fprintf_filtered (file
, _("Saving of the history record on exit is %s.\n"),
691 /* The variable associated with the "set/show history size"
693 static unsigned int history_size_setshow_var
;
696 show_history_size (struct ui_file
*file
, int from_tty
,
697 struct cmd_list_element
*c
, const char *value
)
699 fprintf_filtered (file
, _("The size of the command history is %s.\n"),
703 static char *history_filename
;
705 show_history_filename (struct ui_file
*file
, int from_tty
,
706 struct cmd_list_element
*c
, const char *value
)
708 fprintf_filtered (file
, _("The filename in which to record "
709 "the command history is \"%s\".\n"),
713 /* This is like readline(), but it has some gdb-specific behavior.
714 gdb may want readline in both the synchronous and async modes during
715 a single gdb invocation. At the ordinary top-level prompt we might
716 be using the async readline. That means we can't use
717 rl_pre_input_hook, since it doesn't work properly in async mode.
718 However, for a secondary prompt (" >", such as occurs during a
719 `define'), gdb wants a synchronous response.
721 We used to call readline() directly, running it in synchronous
722 mode. But mixing modes this way is not supported, and as of
723 readline 5.x it no longer works; the arrow keys come unbound during
724 the synchronous call. So we make a nested call into the event
725 loop. That's what gdb_readline_wrapper is for. */
727 /* A flag set as soon as gdb_readline_wrapper_line is called; we can't
728 rely on gdb_readline_wrapper_result, which might still be NULL if
729 the user types Control-D for EOF. */
730 static int gdb_readline_wrapper_done
;
732 /* The result of the current call to gdb_readline_wrapper, once a newline
734 static char *gdb_readline_wrapper_result
;
736 /* Any intercepted hook. Operate-and-get-next sets this, expecting it
737 to be called after the newline is processed (which will redisplay
738 the prompt). But in gdb_readline_wrapper we will not get a new
739 prompt until the next call, or until we return to the event loop.
740 So we disable this hook around the newline and restore it before we
742 static void (*saved_after_char_processing_hook
) (void);
744 /* This function is called when readline has seen a complete line of
748 gdb_readline_wrapper_line (char *line
)
750 gdb_assert (!gdb_readline_wrapper_done
);
751 gdb_readline_wrapper_result
= line
;
752 gdb_readline_wrapper_done
= 1;
754 /* Prevent operate-and-get-next from acting too early. */
755 saved_after_char_processing_hook
= after_char_processing_hook
;
756 after_char_processing_hook
= NULL
;
758 /* Prevent parts of the prompt from being redisplayed if annotations
759 are enabled, and readline's state getting out of sync. */
760 if (async_command_editing_p
)
761 rl_callback_handler_remove ();
764 struct gdb_readline_wrapper_cleanup
766 void (*handler_orig
) (char *);
767 int already_prompted_orig
;
771 gdb_readline_wrapper_cleanup (void *arg
)
773 struct gdb_readline_wrapper_cleanup
*cleanup
= arg
;
775 rl_already_prompted
= cleanup
->already_prompted_orig
;
777 gdb_assert (input_handler
== gdb_readline_wrapper_line
);
778 input_handler
= cleanup
->handler_orig
;
779 gdb_readline_wrapper_result
= NULL
;
780 gdb_readline_wrapper_done
= 0;
782 after_char_processing_hook
= saved_after_char_processing_hook
;
783 saved_after_char_processing_hook
= NULL
;
789 gdb_readline_wrapper (char *prompt
)
791 struct cleanup
*back_to
;
792 struct gdb_readline_wrapper_cleanup
*cleanup
;
795 cleanup
= xmalloc (sizeof (*cleanup
));
796 cleanup
->handler_orig
= input_handler
;
797 input_handler
= gdb_readline_wrapper_line
;
799 cleanup
->already_prompted_orig
= rl_already_prompted
;
801 back_to
= make_cleanup (gdb_readline_wrapper_cleanup
, cleanup
);
803 /* Display our prompt and prevent double prompt display. */
804 display_gdb_prompt (prompt
);
805 rl_already_prompted
= 1;
807 if (after_char_processing_hook
)
808 (*after_char_processing_hook
) ();
809 gdb_assert (after_char_processing_hook
== NULL
);
811 while (gdb_do_one_event () >= 0)
812 if (gdb_readline_wrapper_done
)
815 retval
= gdb_readline_wrapper_result
;
816 do_cleanups (back_to
);
821 /* The current saved history number from operate-and-get-next.
822 This is -1 if not valid. */
823 static int operate_saved_history
= -1;
825 /* This is put on the appropriate hook and helps operate-and-get-next
828 gdb_rl_operate_and_get_next_completion (void)
830 int delta
= where_history () - operate_saved_history
;
832 /* The `key' argument to rl_get_previous_history is ignored. */
833 rl_get_previous_history (delta
, 0);
834 operate_saved_history
= -1;
836 /* readline doesn't automatically update the display for us. */
839 after_char_processing_hook
= NULL
;
840 rl_pre_input_hook
= NULL
;
843 /* This is a gdb-local readline command handler. It accepts the
844 current command line (like RET does) and, if this command was taken
845 from the history, arranges for the next command in the history to
846 appear on the command line when the prompt returns.
847 We ignore the arguments. */
849 gdb_rl_operate_and_get_next (int count
, int key
)
853 /* Use the async hook. */
854 after_char_processing_hook
= gdb_rl_operate_and_get_next_completion
;
856 /* Find the current line, and find the next line to use. */
857 where
= where_history();
859 if ((history_is_stifled () && (history_length
>= history_max_entries
))
860 || (where
>= history_length
- 1))
861 operate_saved_history
= where
;
863 operate_saved_history
= where
+ 1;
865 return rl_newline (1, key
);
868 /* Read one line from the command input stream `instream'
869 into the local static buffer `linebuffer' (whose current length
871 The buffer is made bigger as necessary.
872 Returns the address of the start of the line.
874 NULL is returned for end of file.
876 *If* the instream == stdin & stdin is a terminal, the line read
877 is copied into the file line saver (global var char *line,
878 length linesize) so that it can be duplicated.
880 This routine either uses fancy command line editing or
881 simple input as the user has requested. */
884 command_line_input (char *prompt_arg
, int repeat
, char *annotation_suffix
)
886 static char *linebuffer
= 0;
887 static unsigned linelength
= 0;
891 char *local_prompt
= prompt_arg
;
895 /* The annotation suffix must be non-NULL. */
896 if (annotation_suffix
== NULL
)
897 annotation_suffix
= "";
899 if (annotation_level
> 1 && instream
== stdin
)
901 local_prompt
= alloca ((prompt_arg
== NULL
? 0 : strlen (prompt_arg
))
902 + strlen (annotation_suffix
) + 40);
903 if (prompt_arg
== NULL
)
904 local_prompt
[0] = '\0';
906 strcpy (local_prompt
, prompt_arg
);
907 strcat (local_prompt
, "\n\032\032");
908 strcat (local_prompt
, annotation_suffix
);
909 strcat (local_prompt
, "\n");
915 linebuffer
= (char *) xmalloc (linelength
);
920 /* Control-C quits instantly if typed while in this loop
921 since it should not wait until the user types a newline. */
926 signal (STOP_SIGNAL
, handle_stop_sig
);
931 /* Make sure that all output has been output. Some machines may
932 let you get away with leaving out some of the gdb_flush, but
935 gdb_flush (gdb_stdout
);
936 gdb_flush (gdb_stderr
);
938 if (source_file_name
!= NULL
)
939 ++source_line_number
;
941 if (annotation_level
> 1 && instream
== stdin
)
943 puts_unfiltered ("\n\032\032pre-");
944 puts_unfiltered (annotation_suffix
);
945 puts_unfiltered ("\n");
948 /* Don't use fancy stuff if not talking to stdin. */
949 if (deprecated_readline_hook
&& input_from_terminal_p ())
951 rl
= (*deprecated_readline_hook
) (local_prompt
);
953 else if (command_editing_p
&& input_from_terminal_p ())
955 rl
= gdb_readline_wrapper (local_prompt
);
959 rl
= gdb_readline (local_prompt
);
962 if (annotation_level
> 1 && instream
== stdin
)
964 puts_unfiltered ("\n\032\032post-");
965 puts_unfiltered (annotation_suffix
);
966 puts_unfiltered ("\n");
969 if (!rl
|| rl
== (char *) EOF
)
974 if (strlen (rl
) + 1 + (p
- linebuffer
) > linelength
)
976 linelength
= strlen (rl
) + 1 + (p
- linebuffer
);
977 nline
= (char *) xrealloc (linebuffer
, linelength
);
978 p
+= nline
- linebuffer
;
982 /* Copy line. Don't copy null at end. (Leaves line alone
983 if this was just a newline). */
987 xfree (rl
); /* Allocated in readline. */
989 if (p
== linebuffer
|| *(p
- 1) != '\\')
992 p
--; /* Put on top of '\'. */
993 local_prompt
= (char *) 0;
998 signal (STOP_SIGNAL
, SIG_DFL
);
1005 #define SERVER_COMMAND_LENGTH 7
1007 (p
- linebuffer
> SERVER_COMMAND_LENGTH
)
1008 && strncmp (linebuffer
, "server ", SERVER_COMMAND_LENGTH
) == 0;
1011 /* Note that we don't set `line'. Between this and the check in
1012 dont_repeat, this insures that repeating will still do the
1015 return linebuffer
+ SERVER_COMMAND_LENGTH
;
1018 /* Do history expansion if that is wished. */
1019 if (history_expansion_p
&& instream
== stdin
1020 && ISATTY (instream
))
1022 char *history_value
;
1025 *p
= '\0'; /* Insert null now. */
1026 expanded
= history_expand (linebuffer
, &history_value
);
1029 /* Print the changes. */
1030 printf_unfiltered ("%s\n", history_value
);
1032 /* If there was an error, call this function again. */
1035 xfree (history_value
);
1036 return command_line_input (prompt_arg
, repeat
,
1039 if (strlen (history_value
) > linelength
)
1041 linelength
= strlen (history_value
) + 1;
1042 linebuffer
= (char *) xrealloc (linebuffer
, linelength
);
1044 strcpy (linebuffer
, history_value
);
1045 p
= linebuffer
+ strlen (linebuffer
);
1047 xfree (history_value
);
1050 /* If we just got an empty line, and that is supposed to repeat the
1051 previous command, return the value in the global buffer. */
1052 if (repeat
&& p
== linebuffer
)
1053 return saved_command_line
;
1054 for (p1
= linebuffer
; *p1
== ' ' || *p1
== '\t'; p1
++);
1056 return saved_command_line
;
1060 /* Add line to history if appropriate. */
1061 if (*linebuffer
&& input_from_terminal_p ())
1062 add_history (linebuffer
);
1064 /* Save into global buffer if appropriate. */
1067 if (linelength
> saved_command_line_size
)
1069 saved_command_line
= xrealloc (saved_command_line
, linelength
);
1070 saved_command_line_size
= linelength
;
1072 strcpy (saved_command_line
, linebuffer
);
1073 return saved_command_line
;
1079 /* Print the GDB banner. */
1081 print_gdb_version (struct ui_file
*stream
)
1083 /* From GNU coding standards, first line is meant to be easy for a
1084 program to parse, and is just canonical program name and version
1085 number, which starts after last space. */
1087 fprintf_filtered (stream
, "GNU gdb %s%s\n", PKGVERSION
, version
);
1089 /* Second line is a copyright notice. */
1091 fprintf_filtered (stream
,
1092 "Copyright (C) 2014 Free Software Foundation, Inc.\n");
1094 /* Following the copyright is a brief statement that the program is
1095 free software, that users are free to copy and change it on
1096 certain conditions, that it is covered by the GNU GPL, and that
1097 there is no warranty. */
1099 fprintf_filtered (stream
, "\
1100 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\
1101 \nThis is free software: you are free to change and redistribute it.\n\
1102 There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\
1103 and \"show warranty\" for details.\n");
1105 /* After the required info we print the configuration information. */
1107 fprintf_filtered (stream
, "This GDB was configured as \"");
1108 if (strcmp (host_name
, target_name
) != 0)
1110 fprintf_filtered (stream
, "--host=%s --target=%s",
1111 host_name
, target_name
);
1115 fprintf_filtered (stream
, "%s", host_name
);
1117 fprintf_filtered (stream
, "\".\n\
1118 Type \"show configuration\" for configuration details.");
1120 if (REPORT_BUGS_TO
[0])
1122 fprintf_filtered (stream
,
1123 _("\nFor bug reporting instructions, please see:\n"));
1124 fprintf_filtered (stream
, "%s.\n", REPORT_BUGS_TO
);
1126 fprintf_filtered (stream
,
1127 _("Find the GDB manual and other documentation \
1128 resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n"));
1129 fprintf_filtered (stream
, _("For help, type \"help\".\n"));
1130 fprintf_filtered (stream
, _("Type \"apropos word\" to search for \
1131 commands related to \"word\"."));
1134 /* Print the details of GDB build-time configuration. */
1136 print_gdb_configuration (struct ui_file
*stream
)
1138 fprintf_filtered (stream
, _("\
1139 This GDB was configured as follows:\n\
1140 configure --host=%s --target=%s\n\
1141 "), host_name
, target_name
);
1142 fprintf_filtered (stream
, _("\
1143 --with-auto-load-dir=%s\n\
1144 --with-auto-load-safe-path=%s\n\
1145 "), AUTO_LOAD_DIR
, AUTO_LOAD_SAFE_PATH
);
1147 fprintf_filtered (stream
, _("\
1151 fprintf_filtered (stream
, _("\
1156 fprintf_filtered (stream
, _("\
1157 --with-gdb-datadir=%s%s\n\
1158 "), GDB_DATADIR
, GDB_DATADIR_RELOCATABLE
? " (relocatable)" : "");
1160 fprintf_filtered (stream
, _("\
1161 --with-iconv-bin=%s%s\n\
1162 "), ICONV_BIN
, ICONV_BIN_RELOCATABLE
? " (relocatable)" : "");
1164 if (JIT_READER_DIR
[0])
1165 fprintf_filtered (stream
, _("\
1166 --with-jit-reader-dir=%s%s\n\
1167 "), JIT_READER_DIR
, JIT_READER_DIR_RELOCATABLE
? " (relocatable)" : "");
1168 #if HAVE_LIBUNWIND_IA64_H
1169 fprintf_filtered (stream
, _("\
1170 --with-libunwind-ia64\n\
1173 fprintf_filtered (stream
, _("\
1174 --without-libunwind-ia64\n\
1178 fprintf_filtered (stream
, _("\
1182 fprintf_filtered (stream
, _("\
1186 #ifdef WITH_PYTHON_PATH
1187 fprintf_filtered (stream
, _("\
1188 --with-python=%s%s\n\
1189 "), WITH_PYTHON_PATH
, PYTHON_PATH_RELOCATABLE
? " (relocatable)" : "");
1192 fprintf_filtered (stream
, _("\
1196 fprintf_filtered (stream
, _("\
1201 fprintf_filtered (stream
, _("\
1202 --with-relocated-sources=%s\n\
1206 fprintf_filtered (stream
, _("\
1207 --with-separate-debug-dir=%s%s\n\
1208 "), DEBUGDIR
, DEBUGDIR_RELOCATABLE
? " (relocatable)" : "");
1209 if (TARGET_SYSTEM_ROOT
[0])
1210 fprintf_filtered (stream
, _("\
1211 --with-sysroot=%s%s\n\
1212 "), TARGET_SYSTEM_ROOT
, TARGET_SYSTEM_ROOT_RELOCATABLE
? " (relocatable)" : "");
1213 if (SYSTEM_GDBINIT
[0])
1214 fprintf_filtered (stream
, _("\
1215 --with-system-gdbinit=%s%s\n\
1216 "), SYSTEM_GDBINIT
, SYSTEM_GDBINIT_RELOCATABLE
? " (relocatable)" : "");
1218 fprintf_filtered (stream
, _("\
1222 fprintf_filtered (stream
, _("\
1226 #if HAVE_LIBBABELTRACE
1227 fprintf_filtered (stream
, _("\
1228 --with-babeltrace\n\
1231 fprintf_filtered (stream
, _("\
1232 --without-babeltrace\n\
1235 /* We assume "relocatable" will be printed at least once, thus we always
1236 print this text. It's a reasonably safe assumption for now. */
1237 fprintf_filtered (stream
, _("\n\
1238 (\"Relocatable\" means the directory can be moved with the GDB installation\n\
1239 tree, and GDB will still find it.)\n\
1244 /* The current top level prompt, settable with "set prompt", and/or
1245 with the python `gdb.prompt_hook' hook. */
1246 static char *top_prompt
;
1248 /* Access method for the GDB prompt string. */
1256 /* Set method for the GDB prompt string. */
1259 set_prompt (const char *s
)
1261 char *p
= xstrdup (s
);
1274 /* Callback for iterate_over_inferiors. Kills or detaches the given
1275 inferior, depending on how we originally gained control of it. */
1278 kill_or_detach (struct inferior
*inf
, void *args
)
1280 struct qt_args
*qt
= args
;
1281 struct thread_info
*thread
;
1286 thread
= any_thread_of_process (inf
->pid
);
1289 switch_to_thread (thread
->ptid
);
1291 /* Leave core files alone. */
1292 if (target_has_execution
)
1294 if (inf
->attach_flag
)
1295 target_detach (qt
->args
, qt
->from_tty
);
1304 /* Callback for iterate_over_inferiors. Prints info about what GDB
1305 will do to each inferior on a "quit". ARG points to a struct
1306 ui_out where output is to be collected. */
1309 print_inferior_quit_action (struct inferior
*inf
, void *arg
)
1311 struct ui_file
*stb
= arg
;
1316 if (inf
->attach_flag
)
1317 fprintf_filtered (stb
,
1318 _("\tInferior %d [%s] will be detached.\n"), inf
->num
,
1319 target_pid_to_str (pid_to_ptid (inf
->pid
)));
1321 fprintf_filtered (stb
,
1322 _("\tInferior %d [%s] will be killed.\n"), inf
->num
,
1323 target_pid_to_str (pid_to_ptid (inf
->pid
)));
1328 /* If necessary, make the user confirm that we should quit. Return
1329 non-zero if we should quit, zero if we shouldn't. */
1334 struct ui_file
*stb
;
1335 struct cleanup
*old_chain
;
1339 /* Don't even ask if we're only debugging a core file inferior. */
1340 if (!have_live_inferiors ())
1343 /* Build the query string as a single string. */
1344 stb
= mem_fileopen ();
1345 old_chain
= make_cleanup_ui_file_delete (stb
);
1347 fprintf_filtered (stb
, _("A debugging session is active.\n\n"));
1348 iterate_over_inferiors (print_inferior_quit_action
, stb
);
1349 fprintf_filtered (stb
, _("\nQuit anyway? "));
1351 str
= ui_file_xstrdup (stb
, NULL
);
1352 make_cleanup (xfree
, str
);
1354 qr
= query ("%s", str
);
1355 do_cleanups (old_chain
);
1359 /* Quit without asking for confirmation. */
1362 quit_force (char *args
, int from_tty
)
1366 volatile struct gdb_exception ex
;
1368 /* An optional expression may be used to cause gdb to terminate with the
1369 value of that expression. */
1372 struct value
*val
= parse_and_eval (args
);
1374 exit_code
= (int) value_as_long (val
);
1376 else if (return_child_result
)
1377 exit_code
= return_child_result_value
;
1380 qt
.from_tty
= from_tty
;
1382 /* Wrappers to make the code below a bit more readable. */
1384 TRY_CATCH (ex, RETURN_MASK_ALL)
1386 #define DO_PRINT_EX \
1387 if (ex.reason < 0) \
1388 exception_print (gdb_stderr, ex)
1390 /* We want to handle any quit errors and exit regardless. */
1392 /* Get out of tfind mode, and kill or detach all inferiors. */
1395 disconnect_tracing ();
1396 iterate_over_inferiors (kill_or_detach
, &qt
);
1400 /* Give all pushed targets a chance to do minimal cleanup, and pop
1408 /* Save the history information if it is appropriate to do so. */
1411 if (write_history_p
&& history_filename
1412 && input_from_terminal_p ())
1413 write_history (history_filename
);
1417 /* Do any final cleanups before exiting. */
1420 do_final_cleanups (all_cleanups ());
1427 /* Returns whether GDB is running on a terminal and input is
1428 currently coming from that terminal. */
1431 input_from_terminal_p (void)
1436 if (gdb_has_a_terminal () && instream
== stdin
)
1439 /* If INSTREAM is unset, and we are not in a user command, we
1440 must be in Insight. That's like having a terminal, for our
1442 if (instream
== NULL
&& !in_user_command
)
1449 dont_repeat_command (char *ignored
, int from_tty
)
1451 /* Can't call dont_repeat here because we're not necessarily reading
1453 *saved_command_line
= 0;
1456 /* Functions to manipulate command line editing control variables. */
1458 /* Number of commands to print in each call to show_commands. */
1459 #define Hist_print 10
1461 show_commands (char *args
, int from_tty
)
1463 /* Index for history commands. Relative to history_base. */
1466 /* Number of the history entry which we are planning to display next.
1467 Relative to history_base. */
1470 /* Print out some of the commands from the command history. */
1474 if (args
[0] == '+' && args
[1] == '\0')
1475 /* "info editing +" should print from the stored position. */
1478 /* "info editing <exp>" should print around command number <exp>. */
1479 num
= (parse_and_eval_long (args
) - history_base
) - Hist_print
/ 2;
1481 /* "show commands" means print the last Hist_print commands. */
1484 num
= history_length
- Hist_print
;
1490 /* If there are at least Hist_print commands, we want to display the last
1491 Hist_print rather than, say, the last 6. */
1492 if (history_length
- num
< Hist_print
)
1494 num
= history_length
- Hist_print
;
1500 offset
< num
+ Hist_print
&& offset
< history_length
;
1503 printf_filtered ("%5d %s\n", history_base
+ offset
,
1504 (history_get (history_base
+ offset
))->line
);
1507 /* The next command we want to display is the next one that we haven't
1511 /* If the user repeats this command with return, it should do what
1512 "show commands +" does. This is unnecessary if arg is null,
1513 because "show commands +" is not useful after "show commands". */
1514 if (from_tty
&& args
)
1521 /* Called by do_setshow_command. */
1523 set_history_size_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1525 /* Readline's history interface works with 'int', so it can only
1526 handle history sizes up to INT_MAX. The command itself is
1527 uinteger, so UINT_MAX means "unlimited", but we only get that if
1528 the user does "set history size 0" -- "set history size <UINT_MAX>"
1529 throws out-of-range. */
1530 if (history_size_setshow_var
> INT_MAX
1531 && history_size_setshow_var
!= UINT_MAX
)
1533 unsigned int new_value
= history_size_setshow_var
;
1535 /* Restore previous value before throwing. */
1536 if (history_is_stifled ())
1537 history_size_setshow_var
= history_max_entries
;
1539 history_size_setshow_var
= UINT_MAX
;
1541 error (_("integer %u out of range"), new_value
);
1544 /* Commit the new value to readline's history. */
1545 if (history_size_setshow_var
== UINT_MAX
)
1546 unstifle_history ();
1548 stifle_history (history_size_setshow_var
);
1552 set_history (char *args
, int from_tty
)
1554 printf_unfiltered (_("\"set history\" must be followed "
1555 "by the name of a history subcommand.\n"));
1556 help_list (sethistlist
, "set history ", all_commands
, gdb_stdout
);
1560 show_history (char *args
, int from_tty
)
1562 cmd_show_list (showhistlist
, from_tty
, "");
1565 int info_verbose
= 0; /* Default verbose msgs off. */
1567 /* Called by do_setshow_command. An elaborate joke. */
1569 set_verbose (char *args
, int from_tty
, struct cmd_list_element
*c
)
1571 const char *cmdname
= "verbose";
1572 struct cmd_list_element
*showcmd
;
1574 showcmd
= lookup_cmd_1 (&cmdname
, showlist
, NULL
, 1);
1575 gdb_assert (showcmd
!= NULL
&& showcmd
!= CMD_LIST_AMBIGUOUS
);
1579 c
->doc
= "Set verbose printing of informational messages.";
1580 showcmd
->doc
= "Show verbose printing of informational messages.";
1584 c
->doc
= "Set verbosity.";
1585 showcmd
->doc
= "Show verbosity.";
1589 /* Init the history buffer. Note that we are called after the init file(s)
1590 have been read so that the user can change the history file via his
1591 .gdbinit file (for instance). The GDBHISTFILE environment variable
1592 overrides all of this. */
1599 tmpenv
= getenv ("HISTSIZE");
1604 var
= atoi (tmpenv
);
1607 /* Prefer ending up with no history rather than overflowing
1608 readline's history interface, which uses signed 'int'
1613 history_size_setshow_var
= var
;
1615 /* If the init file hasn't set a size yet, pick the default. */
1616 else if (history_size_setshow_var
== 0)
1617 history_size_setshow_var
= 256;
1619 /* Note that unlike "set history size 0", "HISTSIZE=0" really sets
1620 the history size to 0... */
1621 stifle_history (history_size_setshow_var
);
1623 tmpenv
= getenv ("GDBHISTFILE");
1625 history_filename
= xstrdup (tmpenv
);
1626 else if (!history_filename
)
1628 /* We include the current directory so that if the user changes
1629 directories the file written will be the same as the one
1632 /* No leading dots in file names are allowed on MSDOS. */
1633 history_filename
= concat (current_directory
, "/_gdb_history",
1636 history_filename
= concat (current_directory
, "/.gdb_history",
1640 read_history (history_filename
);
1644 show_prompt (struct ui_file
*file
, int from_tty
,
1645 struct cmd_list_element
*c
, const char *value
)
1647 fprintf_filtered (file
, _("Gdb's prompt is \"%s\".\n"), value
);
1651 show_async_command_editing_p (struct ui_file
*file
, int from_tty
,
1652 struct cmd_list_element
*c
, const char *value
)
1654 fprintf_filtered (file
, _("Editing of command lines as "
1655 "they are typed is %s.\n"),
1660 show_annotation_level (struct ui_file
*file
, int from_tty
,
1661 struct cmd_list_element
*c
, const char *value
)
1663 fprintf_filtered (file
, _("Annotation_level is %s.\n"), value
);
1667 show_exec_done_display_p (struct ui_file
*file
, int from_tty
,
1668 struct cmd_list_element
*c
, const char *value
)
1670 fprintf_filtered (file
, _("Notification of completion for "
1671 "asynchronous execution commands is %s.\n"),
1675 /* New values of the "data-directory" parameter are staged here. */
1676 static char *staged_gdb_datadir
;
1678 /* "set" command for the gdb_datadir configuration variable. */
1681 set_gdb_datadir (char *args
, int from_tty
, struct cmd_list_element
*c
)
1683 set_gdb_data_directory (staged_gdb_datadir
);
1684 observer_notify_gdb_datadir_changed ();
1687 /* "show" command for the gdb_datadir configuration variable. */
1690 show_gdb_datadir (struct ui_file
*file
, int from_tty
,
1691 struct cmd_list_element
*c
, const char *value
)
1693 fprintf_filtered (file
, _("GDB's data directory is \"%s\".\n"),
1698 set_history_filename (char *args
, int from_tty
, struct cmd_list_element
*c
)
1700 /* We include the current directory so that if the user changes
1701 directories the file written will be the same as the one
1703 if (!IS_ABSOLUTE_PATH (history_filename
))
1704 history_filename
= reconcat (history_filename
, current_directory
, "/",
1705 history_filename
, (char *) NULL
);
1711 /* Initialize the prompt to a simple "(gdb) " prompt or to whatever
1712 the DEFAULT_PROMPT is. */
1713 set_prompt (DEFAULT_PROMPT
);
1715 /* Set things up for annotation_level > 1, if the user ever decides
1717 async_annotation_suffix
= "prompt";
1719 /* Set the important stuff up for command editing. */
1720 command_editing_p
= 1;
1721 history_expansion_p
= 0;
1722 write_history_p
= 0;
1724 /* Setup important stuff for command line editing. */
1725 rl_completion_word_break_hook
= gdb_completion_word_break_characters
;
1726 rl_completion_entry_function
= readline_line_completion_function
;
1727 rl_completer_word_break_characters
= default_word_break_characters ();
1728 rl_completer_quote_characters
= get_gdb_completer_quote_characters ();
1729 rl_readline_name
= "gdb";
1730 rl_terminal_name
= getenv ("TERM");
1732 /* The name for this defun comes from Bash, where it originated.
1733 15 is Control-o, the same binding this function has in Bash. */
1734 rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next
, 15);
1736 add_setshow_string_cmd ("prompt", class_support
,
1738 _("Set gdb's prompt"),
1739 _("Show gdb's prompt"),
1742 &setlist
, &showlist
);
1744 add_com ("dont-repeat", class_support
, dont_repeat_command
, _("\
1745 Don't repeat this command.\nPrimarily \
1746 used inside of user-defined commands that should not be repeated when\n\
1749 add_setshow_boolean_cmd ("editing", class_support
,
1750 &async_command_editing_p
, _("\
1751 Set editing of command lines as they are typed."), _("\
1752 Show editing of command lines as they are typed."), _("\
1753 Use \"on\" to enable the editing, and \"off\" to disable it.\n\
1754 Without an argument, command line editing is enabled. To edit, use\n\
1755 EMACS-like or VI-like commands like control-P or ESC."),
1756 set_async_editing_command
,
1757 show_async_command_editing_p
,
1758 &setlist
, &showlist
);
1760 add_setshow_boolean_cmd ("save", no_class
, &write_history_p
, _("\
1761 Set saving of the history record on exit."), _("\
1762 Show saving of the history record on exit."), _("\
1763 Use \"on\" to enable the saving, and \"off\" to disable it.\n\
1764 Without an argument, saving is enabled."),
1766 show_write_history_p
,
1767 &sethistlist
, &showhistlist
);
1769 add_setshow_uinteger_cmd ("size", no_class
, &history_size_setshow_var
, _("\
1770 Set the size of the command history,"), _("\
1771 Show the size of the command history,"), _("\
1772 ie. the number of previous commands to keep a record of.\n\
1773 If set to \"unlimited\", the number of commands kept in the history\n\
1774 list is unlimited. This defaults to the value of the environment\n\
1775 variable \"HISTSIZE\", or to 256 if this variable is not set."),
1776 set_history_size_command
,
1778 &sethistlist
, &showhistlist
);
1780 add_setshow_filename_cmd ("filename", no_class
, &history_filename
, _("\
1781 Set the filename in which to record the command history"), _("\
1782 Show the filename in which to record the command history"), _("\
1783 (the list of previous commands of which a record is kept)."),
1784 set_history_filename
,
1785 show_history_filename
,
1786 &sethistlist
, &showhistlist
);
1788 add_setshow_boolean_cmd ("confirm", class_support
, &confirm
, _("\
1789 Set whether to confirm potentially dangerous operations."), _("\
1790 Show whether to confirm potentially dangerous operations."), NULL
,
1793 &setlist
, &showlist
);
1795 add_setshow_zinteger_cmd ("annotate", class_obscure
, &annotation_level
, _("\
1796 Set annotation_level."), _("\
1797 Show annotation_level."), _("\
1798 0 == normal; 1 == fullname (for use when running under emacs)\n\
1799 2 == output annotated suitably for use by programs that control GDB."),
1801 show_annotation_level
,
1802 &setlist
, &showlist
);
1804 add_setshow_boolean_cmd ("exec-done-display", class_support
,
1805 &exec_done_display_p
, _("\
1806 Set notification of completion for asynchronous execution commands."), _("\
1807 Show notification of completion for asynchronous execution commands."), _("\
1808 Use \"on\" to enable the notification, and \"off\" to disable it."),
1810 show_exec_done_display_p
,
1811 &setlist
, &showlist
);
1813 add_setshow_filename_cmd ("data-directory", class_maintenance
,
1814 &staged_gdb_datadir
, _("Set GDB's data directory."),
1815 _("Show GDB's data directory."),
1817 When set, GDB uses the specified path to search for data files."),
1818 set_gdb_datadir
, show_gdb_datadir
,
1824 gdb_init (char *argv0
)
1826 if (pre_init_ui_hook
)
1827 pre_init_ui_hook ();
1829 /* Run the init function of each source file. */
1832 /* Make sure we return to the original directory upon exit, come
1833 what may, since the OS doesn't do that for us. */
1834 make_final_cleanup (do_chdir_cleanup
, xstrdup (current_directory
));
1837 init_cmd_lists (); /* This needs to be done first. */
1838 initialize_targets (); /* Setup target_terminal macros for utils.c. */
1839 initialize_utils (); /* Make errors and warnings possible. */
1841 /* Here is where we call all the _initialize_foo routines. */
1842 initialize_all_files ();
1844 /* This creates the current_program_space. Do this after all the
1845 _initialize_foo routines have had a chance to install their
1846 per-sspace data keys. Also do this before
1847 initialize_current_architecture is called, because it accesses
1848 exec_bfd of the current program space. */
1849 initialize_progspace ();
1850 initialize_inferiors ();
1851 initialize_current_architecture ();
1853 initialize_event_loop ();
1854 init_main (); /* But that omits this file! Do it now. */
1856 initialize_stdin_serial ();
1858 async_init_signals ();
1860 /* We need a default language for parsing expressions, so simple
1861 things like "set width 0" won't fail if no language is explicitly
1862 set in a config file or implicitly set by reading an executable
1864 set_language (language_c
);
1865 expected_language
= current_language
; /* Don't warn about the change. */
1867 /* Allow another UI to initialize. If the UI fails to initialize,
1868 and it wants GDB to revert to the CLI, it should clear
1869 deprecated_init_ui_hook. */
1870 if (deprecated_init_ui_hook
)
1871 deprecated_init_ui_hook (argv0
);
1873 /* Python initialization, for example, can require various commands to be
1874 installed. For example "info pretty-printer" needs the "info"
1875 prefix to be installed. Keep things simple and just do final
1876 script initialization here. */
1877 finish_ext_lang_initialization ();