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 "target-dcache.h"
32 #include "breakpoint.h"
34 #include "expression.h"
37 #include "terminal.h" /* For job_control. */
39 #include "completer.h"
44 #include "gdb_assert.h"
46 #include "event-loop.h"
47 #include "gdbthread.h"
48 #include "python/python.h"
52 #include "filenames.h"
54 /* readline include files. */
55 #include "readline/readline.h"
56 #include "readline/history.h"
58 /* readline defines this. */
61 #include <sys/types.h>
63 #include "event-top.h"
69 #include "tracepoint.h"
71 extern void initialize_all_files (void);
73 #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt
74 #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix
75 #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix
77 /* Default command line prompt. This is overriden in some configs. */
79 #ifndef DEFAULT_PROMPT
80 #define DEFAULT_PROMPT "(gdb) "
83 /* Initialization file name for gdb. This is host-dependent. */
85 const char gdbinit[] = GDBINIT;
87 int inhibit_gdbinit = 0;
89 /* If nonzero, and GDB has been configured to be able to use windows,
90 attempt to open them upon startup. */
94 extern char lang_frame_mismatch_warn[]; /* language.c */
96 /* Flag for whether we want to confirm potentially dangerous
97 operations. Default is yes. */
102 show_confirm (struct ui_file *file, int from_tty,
103 struct cmd_list_element *c, const char *value)
105 fprintf_filtered (file, _("Whether to confirm potentially "
106 "dangerous operations is %s.\n"),
110 /* stdio stream that command input is being read from. Set to stdin
111 normally. Set by source_command to the file we are sourcing. Set
112 to NULL if we are executing a user-defined command or interacting
117 /* Flag to indicate whether a user defined command is currently running. */
121 /* Current working directory. */
123 char *current_directory;
125 /* The directory name is actually stored here (usually). */
126 char gdb_dirbuf[1024];
128 /* Function to call before reading a command, if nonzero.
129 The function receives two args: an input stream,
130 and a prompt string. */
132 void (*window_hook) (FILE *, char *);
134 /* Buffer used for reading command lines, and the size
135 allocated for it so far. */
137 char *saved_command_line;
138 int saved_command_line_size = 100;
140 /* Nonzero if the current command is modified by "server ". This
141 affects things like recording into the command history, commands
142 repeating on RETURN, etc. This is so a user interface (emacs, GUI,
143 whatever) can issue its own commands and also send along commands
144 from the user, and have the user not notice that the user interface
145 is issuing commands too. */
148 /* Timeout limit for response from target. */
150 /* The default value has been changed many times over the years. It
151 was originally 5 seconds. But that was thought to be a long time
152 to sit and wait, so it was changed to 2 seconds. That was thought
153 to be plenty unless the connection was going through some terminal
154 server or multiplexer or other form of hairy serial connection.
156 In mid-1996, remote_timeout was moved from remote.c to top.c and
157 it began being used in other remote-* targets. It appears that the
158 default was changed to 20 seconds at that time, perhaps because the
159 Renesas E7000 ICE didn't always respond in a timely manner.
161 But if 5 seconds is a long time to sit and wait for retransmissions,
162 20 seconds is far worse. This demonstrates the difficulty of using
163 a single variable for all protocol timeouts.
165 As remote.c is used much more than remote-e7000.c, it was changed
166 back to 2 seconds in 1999. */
168 int remote_timeout = 2;
170 /* Non-zero tells remote* modules to output debugging info. */
172 int remote_debug = 0;
174 /* Sbrk location on entry to main. Used for statistics only. */
179 /* Hooks for alternate command interfaces. */
181 /* Called after most modules have been initialized, but before taking
184 If the UI fails to initialize and it wants GDB to continue using
185 the default UI, then it should clear this hook before returning. */
187 void (*deprecated_init_ui_hook) (char *argv0);
189 /* This hook is called from within gdb's many mini-event loops which
190 could steal control from a real user interface's event loop. It
191 returns non-zero if the user is requesting a detach, zero
194 int (*deprecated_ui_loop_hook) (int);
197 /* Called from print_frame_info to list the line we stopped in. */
199 void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
203 /* Replaces most of query. */
205 int (*deprecated_query_hook) (const char *, va_list);
207 /* Replaces most of warning. */
209 void (*deprecated_warning_hook) (const char *, va_list);
211 /* These three functions support getting lines of text from the user.
212 They are used in sequence. First deprecated_readline_begin_hook is
213 called with a text string that might be (for example) a message for
214 the user to type in a sequence of commands to be executed at a
215 breakpoint. If this function calls back to a GUI, it might take
216 this opportunity to pop up a text interaction window with this
217 message. Next, deprecated_readline_hook is called with a prompt
218 that is emitted prior to collecting the user input. It can be
219 called multiple times. Finally, deprecated_readline_end_hook is
220 called to notify the GUI that we are done with the interaction
221 window and it can close it. */
223 void (*deprecated_readline_begin_hook) (char *, ...);
224 char *(*deprecated_readline_hook) (char *);
225 void (*deprecated_readline_end_hook) (void);
227 /* Called as appropriate to notify the interface that we have attached
228 to or detached from an already running process. */
230 void (*deprecated_attach_hook) (void);
231 void (*deprecated_detach_hook) (void);
233 /* Called during long calculations to allow GUI to repair window
234 damage, and to check for stop buttons, etc... */
236 void (*deprecated_interactive_hook) (void);
238 /* Tell the GUI someone changed the register REGNO. -1 means
239 that the caller does not know which register changed or
240 that several registers have changed (see value_assign). */
241 void (*deprecated_register_changed_hook) (int regno);
243 /* Called when going to wait for the target. Usually allows the GUI
244 to run while waiting for target events. */
246 ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
247 struct target_waitstatus *status,
250 /* Used by UI as a wrapper around command execution. May do various
251 things like enabling/disabling buttons, etc... */
253 void (*deprecated_call_command_hook) (struct cmd_list_element * c,
254 char *cmd, int from_tty);
256 /* Called after a `set' command has finished. Is only run if the
257 `set' command succeeded. */
259 void (*deprecated_set_hook) (struct cmd_list_element * c);
261 /* Called when the current thread changes. Argument is thread id. */
263 void (*deprecated_context_hook) (int id);
265 /* Handler for SIGHUP. */
268 /* NOTE 1999-04-29: This function will be static again, once we modify
269 gdb to use the event loop as the default command loop and we merge
270 event-top.c into this file, top.c. */
274 /* Stop asking user for confirmation --- we're exiting. This
275 prevents asking the user dumb questions. */
277 quit_command ((char *) 0, 0);
279 #endif /* defined SIGHUP */
281 /* Line number we are currently in, in a file which is being sourced. */
282 /* NOTE 1999-04-29: This variable will be static again, once we modify
283 gdb to use the event loop as the default command loop and we merge
284 event-top.c into this file, top.c. */
285 /* static */ int source_line_number;
287 /* Name of the file we are sourcing. */
288 /* NOTE 1999-04-29: This variable will be static again, once we modify
289 gdb to use the event loop as the default command loop and we merge
290 event-top.c into this file, top.c. */
291 /* static */ const char *source_file_name;
293 /* Clean up on error during a "source" command (or execution of a
294 user-defined command). */
297 do_restore_instream_cleanup (void *stream)
299 /* Restore the previous input stream. */
303 /* Read commands from STREAM. */
305 read_command_file (FILE *stream)
307 struct cleanup *cleanups;
309 cleanups = make_cleanup (do_restore_instream_cleanup, instream);
312 do_cleanups (cleanups);
315 void (*pre_init_ui_hook) (void);
319 do_chdir_cleanup (void *old_dir)
327 prepare_execute_command (void)
330 struct cleanup *cleanup;
332 mark = value_mark ();
333 cleanup = make_cleanup_value_free_to_mark (mark);
335 /* With multiple threads running while the one we're examining is
336 stopped, the dcache can get stale without us being able to detect
337 it. For the duration of the command, though, use the dcache to
338 help things like backtrace. */
340 target_dcache_invalidate ();
345 /* Tell the user if the language has changed (except first time) after
346 executing a command. */
349 check_frame_language_change (void)
351 static int warned = 0;
353 /* First make sure that a new frame has been selected, in case the
354 command or the hooks changed the program state. */
355 deprecated_safe_get_selected_frame ();
356 if (current_language != expected_language)
358 if (language_mode == language_mode_auto && info_verbose)
360 language_info (1); /* Print what changed. */
365 /* Warn the user if the working language does not match the language
366 of the current frame. Only warn the user if we are actually
367 running the program, i.e. there is a stack. */
368 /* FIXME: This should be cacheing the frame and only running when
369 the frame changes. */
371 if (has_stack_frames ())
375 flang = get_frame_language ();
377 && flang != language_unknown
378 && flang != current_language->la_language)
380 printf_filtered ("%s\n", lang_frame_mismatch_warn);
386 /* Execute the line P as a command, in the current user context.
387 Pass FROM_TTY as second argument to the defining function. */
390 execute_command (char *p, int from_tty)
392 struct cleanup *cleanup_if_error, *cleanup;
393 struct cmd_list_element *c;
396 cleanup_if_error = make_bpstat_clear_actions_cleanup ();
397 cleanup = prepare_execute_command ();
399 /* Force cleanup of any alloca areas if using C alloca instead of
403 /* This can happen when command_line_input hits end of file. */
406 do_cleanups (cleanup);
407 discard_cleanups (cleanup_if_error);
411 target_log_command (p);
413 while (*p == ' ' || *p == '\t')
421 /* If trace-commands is set then this will print this command. */
422 print_command_trace (p);
424 c = lookup_cmd (&cmd, cmdlist, "", 0, 1);
427 /* Pass null arg rather than an empty one. */
430 /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy
431 while the is_complete_command(cfunc) test is just plain
432 bogus. They should both be replaced by a test of the form
433 c->strip_trailing_white_space_p. */
434 /* NOTE: cagney/2002-02-02: The function.cfunc in the below
435 can't be replaced with func. This is because it is the
436 cfunc, and not the func, that has the value that the
437 is_complete_command hack is testing for. */
438 /* Clear off trailing whitespace, except for set and complete
441 && c->type != set_cmd
442 && !is_complete_command (c))
444 p = arg + strlen (arg) - 1;
445 while (p >= arg && (*p == ' ' || *p == '\t'))
450 /* If this command has been pre-hooked, run the hook first. */
451 execute_cmd_pre_hook (c);
453 if (c->flags & DEPRECATED_WARN_USER)
454 deprecated_cmd_warning (line);
456 /* c->user_commands would be NULL in the case of a python command. */
457 if (c->class == class_user && c->user_commands)
458 execute_user_command (c, arg);
459 else if (c->type == set_cmd)
460 do_set_command (arg, from_tty, c);
461 else if (c->type == show_cmd)
462 do_show_command (arg, from_tty, c);
463 else if (!cmd_func_p (c))
464 error (_("That is not a command, just a help topic."));
465 else if (deprecated_call_command_hook)
466 deprecated_call_command_hook (c, arg, from_tty);
468 cmd_func (c, arg, from_tty);
470 /* If the interpreter is in sync mode (we're running a user
471 command's list, running command hooks or similars), and we
472 just ran a synchronous command that started the target, wait
473 for that command to end. */
474 if (!interpreter_async && sync_execution)
476 while (gdb_do_one_event () >= 0)
481 /* If this command has been post-hooked, run the hook last. */
482 execute_cmd_post_hook (c);
486 check_frame_language_change ();
488 do_cleanups (cleanup);
489 discard_cleanups (cleanup_if_error);
492 /* Run execute_command for P and FROM_TTY. Capture its output into the
493 returned string, do not display it to the screen. BATCH_FLAG will be
494 temporarily set to true. */
497 execute_command_to_string (char *p, int from_tty)
499 struct ui_file *str_file;
500 struct cleanup *cleanup;
503 /* GDB_STDOUT should be better already restored during these
504 restoration callbacks. */
505 cleanup = set_batch_flag_and_make_cleanup_restore_page_info ();
507 make_cleanup_restore_integer (&interpreter_async);
508 interpreter_async = 0;
510 str_file = mem_fileopen ();
512 make_cleanup_ui_file_delete (str_file);
513 make_cleanup_restore_ui_file (&gdb_stdout);
514 make_cleanup_restore_ui_file (&gdb_stderr);
515 make_cleanup_restore_ui_file (&gdb_stdlog);
516 make_cleanup_restore_ui_file (&gdb_stdtarg);
517 make_cleanup_restore_ui_file (&gdb_stdtargerr);
519 if (ui_out_redirect (current_uiout, str_file) < 0)
520 warning (_("Current output protocol does not support redirection"));
522 make_cleanup_ui_out_redirect_pop (current_uiout);
524 gdb_stdout = str_file;
525 gdb_stderr = str_file;
526 gdb_stdlog = str_file;
527 gdb_stdtarg = str_file;
528 gdb_stdtargerr = str_file;
530 execute_command (p, from_tty);
532 retval = ui_file_xstrdup (str_file, NULL);
534 do_cleanups (cleanup);
539 /* Read commands from `instream' and execute them
540 until end of file or error reading instream. */
545 struct cleanup *old_chain;
547 int stdin_is_tty = ISATTY (stdin);
549 while (instream && !feof (instream))
551 if (window_hook && instream == stdin)
552 (*window_hook) (instream, get_prompt ());
555 if (instream == stdin && stdin_is_tty)
556 reinitialize_more_filter ();
557 old_chain = make_cleanup (null_cleanup, 0);
559 /* Get a command-line. This calls the readline package. */
560 command = command_line_input (instream == stdin ?
561 get_prompt () : (char *) NULL,
562 instream == stdin, "prompt");
565 do_cleanups (old_chain);
569 make_command_stats_cleanup (1);
571 execute_command (command, instream == stdin);
573 /* Do any commands attached to breakpoint we are stopped at. */
574 bpstat_do_actions ();
576 do_cleanups (old_chain);
580 /* When nonzero, cause dont_repeat to do nothing. This should only be
581 set via prevent_dont_repeat. */
583 static int suppress_dont_repeat = 0;
585 /* Commands call this if they do not want to be repeated by null lines. */
590 if (suppress_dont_repeat || server_command)
593 /* If we aren't reading from standard input, we are saving the last
594 thing read from stdin in line and don't want to delete it. Null
595 lines won't repeat here in any case. */
596 if (instream == stdin)
597 *saved_command_line = 0;
600 /* Prevent dont_repeat from working, and return a cleanup that
601 restores the previous state. */
604 prevent_dont_repeat (void)
606 struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat);
608 suppress_dont_repeat = 1;
613 /* Read a line from the stream "instream" without command line editing.
615 It prints PROMPT_ARG once at the start.
616 Action is compatible with "readline", e.g. space for the result is
617 malloc'd and should be freed by the caller.
619 A NULL return means end of file. */
621 gdb_readline (char *prompt_arg)
626 int result_size = 80;
630 /* Don't use a _filtered function here. It causes the assumed
631 character position to be off, since the newline we read from
632 the user is not accounted for. */
633 fputs_unfiltered (prompt_arg, gdb_stdout);
634 gdb_flush (gdb_stdout);
637 result = (char *) xmalloc (result_size);
641 /* Read from stdin if we are executing a user defined command.
642 This is the right thing for prompt_for_continue, at least. */
643 c = fgetc (instream ? instream : stdin);
648 /* The last line does not end with a newline. Return it, and
649 if we are called again fgetc will still return EOF and
650 we'll return NULL then. */
658 if (input_index > 0 && result[input_index - 1] == '\r')
663 result[input_index++] = c;
664 while (input_index >= result_size)
667 result = (char *) xrealloc (result, result_size);
671 result[input_index++] = '\0';
675 /* Variables which control command line editing and history
676 substitution. These variables are given default values at the end
678 static int command_editing_p;
680 /* NOTE 1999-04-29: This variable will be static again, once we modify
681 gdb to use the event loop as the default command loop and we merge
682 event-top.c into this file, top.c. */
684 /* static */ int history_expansion_p;
686 static int write_history_p;
688 show_write_history_p (struct ui_file *file, int from_tty,
689 struct cmd_list_element *c, const char *value)
691 fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"),
695 /* The variable associated with the "set/show history size"
697 static unsigned int history_size_setshow_var;
700 show_history_size (struct ui_file *file, int from_tty,
701 struct cmd_list_element *c, const char *value)
703 fprintf_filtered (file, _("The size of the command history is %s.\n"),
707 static char *history_filename;
709 show_history_filename (struct ui_file *file, int from_tty,
710 struct cmd_list_element *c, const char *value)
712 fprintf_filtered (file, _("The filename in which to record "
713 "the command history is \"%s\".\n"),
717 /* This is like readline(), but it has some gdb-specific behavior.
718 gdb may want readline in both the synchronous and async modes during
719 a single gdb invocation. At the ordinary top-level prompt we might
720 be using the async readline. That means we can't use
721 rl_pre_input_hook, since it doesn't work properly in async mode.
722 However, for a secondary prompt (" >", such as occurs during a
723 `define'), gdb wants a synchronous response.
725 We used to call readline() directly, running it in synchronous
726 mode. But mixing modes this way is not supported, and as of
727 readline 5.x it no longer works; the arrow keys come unbound during
728 the synchronous call. So we make a nested call into the event
729 loop. That's what gdb_readline_wrapper is for. */
731 /* A flag set as soon as gdb_readline_wrapper_line is called; we can't
732 rely on gdb_readline_wrapper_result, which might still be NULL if
733 the user types Control-D for EOF. */
734 static int gdb_readline_wrapper_done;
736 /* The result of the current call to gdb_readline_wrapper, once a newline
738 static char *gdb_readline_wrapper_result;
740 /* Any intercepted hook. Operate-and-get-next sets this, expecting it
741 to be called after the newline is processed (which will redisplay
742 the prompt). But in gdb_readline_wrapper we will not get a new
743 prompt until the next call, or until we return to the event loop.
744 So we disable this hook around the newline and restore it before we
746 static void (*saved_after_char_processing_hook) (void);
748 /* This function is called when readline has seen a complete line of
752 gdb_readline_wrapper_line (char *line)
754 gdb_assert (!gdb_readline_wrapper_done);
755 gdb_readline_wrapper_result = line;
756 gdb_readline_wrapper_done = 1;
758 /* Prevent operate-and-get-next from acting too early. */
759 saved_after_char_processing_hook = after_char_processing_hook;
760 after_char_processing_hook = NULL;
762 /* Prevent parts of the prompt from being redisplayed if annotations
763 are enabled, and readline's state getting out of sync. */
764 if (async_command_editing_p)
765 rl_callback_handler_remove ();
768 struct gdb_readline_wrapper_cleanup
770 void (*handler_orig) (char *);
771 int already_prompted_orig;
775 gdb_readline_wrapper_cleanup (void *arg)
777 struct gdb_readline_wrapper_cleanup *cleanup = arg;
779 rl_already_prompted = cleanup->already_prompted_orig;
781 gdb_assert (input_handler == gdb_readline_wrapper_line);
782 input_handler = cleanup->handler_orig;
783 gdb_readline_wrapper_result = NULL;
784 gdb_readline_wrapper_done = 0;
786 after_char_processing_hook = saved_after_char_processing_hook;
787 saved_after_char_processing_hook = NULL;
793 gdb_readline_wrapper (char *prompt)
795 struct cleanup *back_to;
796 struct gdb_readline_wrapper_cleanup *cleanup;
799 cleanup = xmalloc (sizeof (*cleanup));
800 cleanup->handler_orig = input_handler;
801 input_handler = gdb_readline_wrapper_line;
803 cleanup->already_prompted_orig = rl_already_prompted;
805 back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup);
807 /* Display our prompt and prevent double prompt display. */
808 display_gdb_prompt (prompt);
809 rl_already_prompted = 1;
811 if (after_char_processing_hook)
812 (*after_char_processing_hook) ();
813 gdb_assert (after_char_processing_hook == NULL);
815 while (gdb_do_one_event () >= 0)
816 if (gdb_readline_wrapper_done)
819 retval = gdb_readline_wrapper_result;
820 do_cleanups (back_to);
825 /* The current saved history number from operate-and-get-next.
826 This is -1 if not valid. */
827 static int operate_saved_history = -1;
829 /* This is put on the appropriate hook and helps operate-and-get-next
832 gdb_rl_operate_and_get_next_completion (void)
834 int delta = where_history () - operate_saved_history;
836 /* The `key' argument to rl_get_previous_history is ignored. */
837 rl_get_previous_history (delta, 0);
838 operate_saved_history = -1;
840 /* readline doesn't automatically update the display for us. */
843 after_char_processing_hook = NULL;
844 rl_pre_input_hook = NULL;
847 /* This is a gdb-local readline command handler. It accepts the
848 current command line (like RET does) and, if this command was taken
849 from the history, arranges for the next command in the history to
850 appear on the command line when the prompt returns.
851 We ignore the arguments. */
853 gdb_rl_operate_and_get_next (int count, int key)
857 /* Use the async hook. */
858 after_char_processing_hook = gdb_rl_operate_and_get_next_completion;
860 /* Find the current line, and find the next line to use. */
861 where = where_history();
863 if ((history_is_stifled () && (history_length >= history_max_entries))
864 || (where >= history_length - 1))
865 operate_saved_history = where;
867 operate_saved_history = where + 1;
869 return rl_newline (1, key);
872 /* Read one line from the command input stream `instream'
873 into the local static buffer `linebuffer' (whose current length
875 The buffer is made bigger as necessary.
876 Returns the address of the start of the line.
878 NULL is returned for end of file.
880 *If* the instream == stdin & stdin is a terminal, the line read
881 is copied into the file line saver (global var char *line,
882 length linesize) so that it can be duplicated.
884 This routine either uses fancy command line editing or
885 simple input as the user has requested. */
888 command_line_input (char *prompt_arg, int repeat, char *annotation_suffix)
890 static char *linebuffer = 0;
891 static unsigned linelength = 0;
895 char *local_prompt = prompt_arg;
899 /* The annotation suffix must be non-NULL. */
900 if (annotation_suffix == NULL)
901 annotation_suffix = "";
903 if (annotation_level > 1 && instream == stdin)
905 local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg))
906 + strlen (annotation_suffix) + 40);
907 if (prompt_arg == NULL)
908 local_prompt[0] = '\0';
910 strcpy (local_prompt, prompt_arg);
911 strcat (local_prompt, "\n\032\032");
912 strcat (local_prompt, annotation_suffix);
913 strcat (local_prompt, "\n");
919 linebuffer = (char *) xmalloc (linelength);
924 /* Control-C quits instantly if typed while in this loop
925 since it should not wait until the user types a newline. */
930 signal (STOP_SIGNAL, handle_stop_sig);
935 /* Make sure that all output has been output. Some machines may
936 let you get away with leaving out some of the gdb_flush, but
939 gdb_flush (gdb_stdout);
940 gdb_flush (gdb_stderr);
942 if (source_file_name != NULL)
943 ++source_line_number;
945 if (annotation_level > 1 && instream == stdin)
947 puts_unfiltered ("\n\032\032pre-");
948 puts_unfiltered (annotation_suffix);
949 puts_unfiltered ("\n");
952 /* Don't use fancy stuff if not talking to stdin. */
953 if (deprecated_readline_hook && input_from_terminal_p ())
955 rl = (*deprecated_readline_hook) (local_prompt);
957 else if (command_editing_p && input_from_terminal_p ())
959 rl = gdb_readline_wrapper (local_prompt);
963 rl = gdb_readline (local_prompt);
966 if (annotation_level > 1 && instream == stdin)
968 puts_unfiltered ("\n\032\032post-");
969 puts_unfiltered (annotation_suffix);
970 puts_unfiltered ("\n");
973 if (!rl || rl == (char *) EOF)
978 if (strlen (rl) + 1 + (p - linebuffer) > linelength)
980 linelength = strlen (rl) + 1 + (p - linebuffer);
981 nline = (char *) xrealloc (linebuffer, linelength);
982 p += nline - linebuffer;
986 /* Copy line. Don't copy null at end. (Leaves line alone
987 if this was just a newline). */
991 xfree (rl); /* Allocated in readline. */
993 if (p == linebuffer || *(p - 1) != '\\')
996 p--; /* Put on top of '\'. */
997 local_prompt = (char *) 0;
1002 signal (STOP_SIGNAL, SIG_DFL);
1009 #define SERVER_COMMAND_LENGTH 7
1011 (p - linebuffer > SERVER_COMMAND_LENGTH)
1012 && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0;
1015 /* Note that we don't set `line'. Between this and the check in
1016 dont_repeat, this insures that repeating will still do the
1019 return linebuffer + SERVER_COMMAND_LENGTH;
1022 /* Do history expansion if that is wished. */
1023 if (history_expansion_p && instream == stdin
1024 && ISATTY (instream))
1026 char *history_value;
1029 *p = '\0'; /* Insert null now. */
1030 expanded = history_expand (linebuffer, &history_value);
1033 /* Print the changes. */
1034 printf_unfiltered ("%s\n", history_value);
1036 /* If there was an error, call this function again. */
1039 xfree (history_value);
1040 return command_line_input (prompt_arg, repeat,
1043 if (strlen (history_value) > linelength)
1045 linelength = strlen (history_value) + 1;
1046 linebuffer = (char *) xrealloc (linebuffer, linelength);
1048 strcpy (linebuffer, history_value);
1049 p = linebuffer + strlen (linebuffer);
1051 xfree (history_value);
1054 /* If we just got an empty line, and that is supposed to repeat the
1055 previous command, return the value in the global buffer. */
1056 if (repeat && p == linebuffer)
1057 return saved_command_line;
1058 for (p1 = linebuffer; *p1 == ' ' || *p1 == '\t'; p1++);
1060 return saved_command_line;
1064 /* Add line to history if appropriate. */
1065 if (*linebuffer && input_from_terminal_p ())
1066 add_history (linebuffer);
1068 /* Note: lines consisting solely of comments are added to the command
1069 history. This is useful when you type a command, and then
1070 realize you don't want to execute it quite yet. You can comment
1071 out the command and then later fetch it from the value history
1072 and remove the '#'. The kill ring is probably better, but some
1073 people are in the habit of commenting things out. */
1075 *p1 = '\0'; /* Found a comment. */
1077 /* Save into global buffer if appropriate. */
1080 if (linelength > saved_command_line_size)
1082 saved_command_line = xrealloc (saved_command_line, linelength);
1083 saved_command_line_size = linelength;
1085 strcpy (saved_command_line, linebuffer);
1086 return saved_command_line;
1092 /* Print the GDB banner. */
1094 print_gdb_version (struct ui_file *stream)
1096 /* From GNU coding standards, first line is meant to be easy for a
1097 program to parse, and is just canonical program name and version
1098 number, which starts after last space. */
1100 fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version);
1102 /* Second line is a copyright notice. */
1104 fprintf_filtered (stream,
1105 "Copyright (C) 2013 Free Software Foundation, Inc.\n");
1107 /* Following the copyright is a brief statement that the program is
1108 free software, that users are free to copy and change it on
1109 certain conditions, that it is covered by the GNU GPL, and that
1110 there is no warranty. */
1112 fprintf_filtered (stream, "\
1113 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\
1114 \nThis is free software: you are free to change and redistribute it.\n\
1115 There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\
1116 and \"show warranty\" for details.\n");
1118 /* After the required info we print the configuration information. */
1120 fprintf_filtered (stream, "This GDB was configured as \"");
1121 if (strcmp (host_name, target_name) != 0)
1123 fprintf_filtered (stream, "--host=%s --target=%s",
1124 host_name, target_name);
1128 fprintf_filtered (stream, "%s", host_name);
1130 fprintf_filtered (stream, "\".\n\
1131 Type \"show configuration\" for configuration details.");
1133 if (REPORT_BUGS_TO[0])
1135 fprintf_filtered (stream,
1136 _("\nFor bug reporting instructions, please see:\n"));
1137 fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO);
1139 fprintf_filtered (stream,
1140 _("Find the GDB manual and other documentation \
1141 resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n"));
1142 fprintf_filtered (stream, _("For help, type \"help\".\n"));
1143 fprintf_filtered (stream, _("Type \"apropos word\" to search for \
1144 commands related to \"word\"."));
1147 /* Print the details of GDB build-time configuration. */
1149 print_gdb_configuration (struct ui_file *stream)
1151 fprintf_filtered (stream, _("\
1152 This GDB was configured as follows:\n\
1153 configure --host=%s --target=%s\n\
1154 "), host_name, target_name);
1155 fprintf_filtered (stream, _("\
1156 --with-auto-load-dir=%s\n\
1157 --with-auto-load-safe-path=%s\n\
1158 "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH);
1160 fprintf_filtered (stream, _("\
1164 fprintf_filtered (stream, _("\
1169 fprintf_filtered (stream, _("\
1170 --with-gdb-datadir=%s%s\n\
1171 "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : "");
1173 fprintf_filtered (stream, _("\
1174 --with-iconv-bin=%s%s\n\
1175 "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : "");
1177 if (JIT_READER_DIR[0])
1178 fprintf_filtered (stream, _("\
1179 --with-jit-reader-dir=%s%s\n\
1180 "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : "");
1181 #if HAVE_LIBUNWIND_IA64_H
1182 fprintf_filtered (stream, _("\
1183 --with-libunwind-ia64\n\
1186 fprintf_filtered (stream, _("\
1187 --without-libunwind-ia64\n\
1191 fprintf_filtered (stream, _("\
1195 fprintf_filtered (stream, _("\
1199 #ifdef WITH_PYTHON_PATH
1200 fprintf_filtered (stream, _("\
1201 --with-python=%s%s\n\
1202 "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : "");
1205 fprintf_filtered (stream, _("\
1206 --with-relocated-sources=%s\n\
1210 fprintf_filtered (stream, _("\
1211 --with-separate-debug-dir=%s%s\n\
1212 "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : "");
1213 if (TARGET_SYSTEM_ROOT[0])
1214 fprintf_filtered (stream, _("\
1215 --with-sysroot=%s%s\n\
1216 "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : "");
1217 if (SYSTEM_GDBINIT[0])
1218 fprintf_filtered (stream, _("\
1219 --with-system-gdbinit=%s%s\n\
1220 "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : "");
1222 fprintf_filtered (stream, _("\
1226 fprintf_filtered (stream, _("\
1230 #if HAVE_LIBBABELTRACE
1231 fprintf_filtered (stream, _("\
1232 --with-babeltrace\n\
1235 fprintf_filtered (stream, _("\
1236 --without-babeltrace\n\
1239 /* We assume "relocatable" will be printed at least once, thus we always
1240 print this text. It's a reasonably safe assumption for now. */
1241 fprintf_filtered (stream, _("\n\
1242 (\"Relocatable\" means the directory can be moved with the GDB installation\n\
1243 tree, and GDB will still find it.)\n\
1248 /* The current top level prompt, settable with "set prompt", and/or
1249 with the python `gdb.prompt_hook' hook. */
1250 static char *top_prompt;
1252 /* Access method for the GDB prompt string. */
1260 /* Set method for the GDB prompt string. */
1263 set_prompt (const char *s)
1265 char *p = xstrdup (s);
1278 /* Callback for iterate_over_inferiors. Kills or detaches the given
1279 inferior, depending on how we originally gained control of it. */
1282 kill_or_detach (struct inferior *inf, void *args)
1284 struct qt_args *qt = args;
1285 struct thread_info *thread;
1290 thread = any_thread_of_process (inf->pid);
1293 switch_to_thread (thread->ptid);
1295 /* Leave core files alone. */
1296 if (target_has_execution)
1298 if (inf->attach_flag)
1299 target_detach (qt->args, qt->from_tty);
1308 /* Callback for iterate_over_inferiors. Prints info about what GDB
1309 will do to each inferior on a "quit". ARG points to a struct
1310 ui_out where output is to be collected. */
1313 print_inferior_quit_action (struct inferior *inf, void *arg)
1315 struct ui_file *stb = arg;
1320 if (inf->attach_flag)
1321 fprintf_filtered (stb,
1322 _("\tInferior %d [%s] will be detached.\n"), inf->num,
1323 target_pid_to_str (pid_to_ptid (inf->pid)));
1325 fprintf_filtered (stb,
1326 _("\tInferior %d [%s] will be killed.\n"), inf->num,
1327 target_pid_to_str (pid_to_ptid (inf->pid)));
1332 /* If necessary, make the user confirm that we should quit. Return
1333 non-zero if we should quit, zero if we shouldn't. */
1338 struct ui_file *stb;
1339 struct cleanup *old_chain;
1343 /* Don't even ask if we're only debugging a core file inferior. */
1344 if (!have_live_inferiors ())
1347 /* Build the query string as a single string. */
1348 stb = mem_fileopen ();
1349 old_chain = make_cleanup_ui_file_delete (stb);
1351 fprintf_filtered (stb, _("A debugging session is active.\n\n"));
1352 iterate_over_inferiors (print_inferior_quit_action, stb);
1353 fprintf_filtered (stb, _("\nQuit anyway? "));
1355 str = ui_file_xstrdup (stb, NULL);
1356 make_cleanup (xfree, str);
1358 qr = query ("%s", str);
1359 do_cleanups (old_chain);
1363 /* Quit without asking for confirmation. */
1366 quit_force (char *args, int from_tty)
1370 volatile struct gdb_exception ex;
1372 /* An optional expression may be used to cause gdb to terminate with the
1373 value of that expression. */
1376 struct value *val = parse_and_eval (args);
1378 exit_code = (int) value_as_long (val);
1380 else if (return_child_result)
1381 exit_code = return_child_result_value;
1384 qt.from_tty = from_tty;
1386 /* Wrappers to make the code below a bit more readable. */
1388 TRY_CATCH (ex, RETURN_MASK_ALL)
1390 #define DO_PRINT_EX \
1391 if (ex.reason < 0) \
1392 exception_print (gdb_stderr, ex)
1394 /* We want to handle any quit errors and exit regardless. */
1396 /* Get out of tfind mode, and kill or detach all inferiors. */
1399 disconnect_tracing ();
1400 iterate_over_inferiors (kill_or_detach, &qt);
1404 /* Give all pushed targets a chance to do minimal cleanup, and pop
1412 /* Save the history information if it is appropriate to do so. */
1415 if (write_history_p && history_filename
1416 && input_from_terminal_p ())
1417 write_history (history_filename);
1421 /* Do any final cleanups before exiting. */
1424 do_final_cleanups (all_cleanups ());
1431 /* Returns whether GDB is running on a terminal and input is
1432 currently coming from that terminal. */
1435 input_from_terminal_p (void)
1440 if (gdb_has_a_terminal () && instream == stdin)
1443 /* If INSTREAM is unset, and we are not in a user command, we
1444 must be in Insight. That's like having a terminal, for our
1446 if (instream == NULL && !in_user_command)
1453 dont_repeat_command (char *ignored, int from_tty)
1455 /* Can't call dont_repeat here because we're not necessarily reading
1457 *saved_command_line = 0;
1460 /* Functions to manipulate command line editing control variables. */
1462 /* Number of commands to print in each call to show_commands. */
1463 #define Hist_print 10
1465 show_commands (char *args, int from_tty)
1467 /* Index for history commands. Relative to history_base. */
1470 /* Number of the history entry which we are planning to display next.
1471 Relative to history_base. */
1474 /* Print out some of the commands from the command history. */
1478 if (args[0] == '+' && args[1] == '\0')
1479 /* "info editing +" should print from the stored position. */
1482 /* "info editing <exp>" should print around command number <exp>. */
1483 num = (parse_and_eval_long (args) - history_base) - Hist_print / 2;
1485 /* "show commands" means print the last Hist_print commands. */
1488 num = history_length - Hist_print;
1494 /* If there are at least Hist_print commands, we want to display the last
1495 Hist_print rather than, say, the last 6. */
1496 if (history_length - num < Hist_print)
1498 num = history_length - Hist_print;
1504 offset < num + Hist_print && offset < history_length;
1507 printf_filtered ("%5d %s\n", history_base + offset,
1508 (history_get (history_base + offset))->line);
1511 /* The next command we want to display is the next one that we haven't
1515 /* If the user repeats this command with return, it should do what
1516 "show commands +" does. This is unnecessary if arg is null,
1517 because "show commands +" is not useful after "show commands". */
1518 if (from_tty && args)
1525 /* Called by do_setshow_command. */
1527 set_history_size_command (char *args, int from_tty, struct cmd_list_element *c)
1529 /* Readline's history interface works with 'int', so it can only
1530 handle history sizes up to INT_MAX. The command itself is
1531 uinteger, so UINT_MAX means "unlimited", but we only get that if
1532 the user does "set history size 0" -- "set history size <UINT_MAX>"
1533 throws out-of-range. */
1534 if (history_size_setshow_var > INT_MAX
1535 && history_size_setshow_var != UINT_MAX)
1537 unsigned int new_value = history_size_setshow_var;
1539 /* Restore previous value before throwing. */
1540 if (history_is_stifled ())
1541 history_size_setshow_var = history_max_entries;
1543 history_size_setshow_var = UINT_MAX;
1545 error (_("integer %u out of range"), new_value);
1548 /* Commit the new value to readline's history. */
1549 if (history_size_setshow_var == UINT_MAX)
1550 unstifle_history ();
1552 stifle_history (history_size_setshow_var);
1556 set_history (char *args, int from_tty)
1558 printf_unfiltered (_("\"set history\" must be followed "
1559 "by the name of a history subcommand.\n"));
1560 help_list (sethistlist, "set history ", -1, gdb_stdout);
1564 show_history (char *args, int from_tty)
1566 cmd_show_list (showhistlist, from_tty, "");
1569 int info_verbose = 0; /* Default verbose msgs off. */
1571 /* Called by do_setshow_command. An elaborate joke. */
1573 set_verbose (char *args, int from_tty, struct cmd_list_element *c)
1575 const char *cmdname = "verbose";
1576 struct cmd_list_element *showcmd;
1578 showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1);
1579 gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS);
1583 c->doc = "Set verbose printing of informational messages.";
1584 showcmd->doc = "Show verbose printing of informational messages.";
1588 c->doc = "Set verbosity.";
1589 showcmd->doc = "Show verbosity.";
1593 /* Init the history buffer. Note that we are called after the init file(s)
1594 have been read so that the user can change the history file via his
1595 .gdbinit file (for instance). The GDBHISTFILE environment variable
1596 overrides all of this. */
1603 tmpenv = getenv ("HISTSIZE");
1608 var = atoi (tmpenv);
1611 /* Prefer ending up with no history rather than overflowing
1612 readline's history interface, which uses signed 'int'
1617 history_size_setshow_var = var;
1619 /* If the init file hasn't set a size yet, pick the default. */
1620 else if (history_size_setshow_var == 0)
1621 history_size_setshow_var = 256;
1623 /* Note that unlike "set history size 0", "HISTSIZE=0" really sets
1624 the history size to 0... */
1625 stifle_history (history_size_setshow_var);
1627 tmpenv = getenv ("GDBHISTFILE");
1629 history_filename = xstrdup (tmpenv);
1630 else if (!history_filename)
1632 /* We include the current directory so that if the user changes
1633 directories the file written will be the same as the one
1636 /* No leading dots in file names are allowed on MSDOS. */
1637 history_filename = concat (current_directory, "/_gdb_history",
1640 history_filename = concat (current_directory, "/.gdb_history",
1644 read_history (history_filename);
1648 show_prompt (struct ui_file *file, int from_tty,
1649 struct cmd_list_element *c, const char *value)
1651 fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value);
1655 show_async_command_editing_p (struct ui_file *file, int from_tty,
1656 struct cmd_list_element *c, const char *value)
1658 fprintf_filtered (file, _("Editing of command lines as "
1659 "they are typed is %s.\n"),
1664 show_annotation_level (struct ui_file *file, int from_tty,
1665 struct cmd_list_element *c, const char *value)
1667 fprintf_filtered (file, _("Annotation_level is %s.\n"), value);
1671 show_exec_done_display_p (struct ui_file *file, int from_tty,
1672 struct cmd_list_element *c, const char *value)
1674 fprintf_filtered (file, _("Notification of completion for "
1675 "asynchronous execution commands is %s.\n"),
1679 /* "set" command for the gdb_datadir configuration variable. */
1682 set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c)
1684 observer_notify_gdb_datadir_changed ();
1688 set_history_filename (char *args, int from_tty, struct cmd_list_element *c)
1690 /* We include the current directory so that if the user changes
1691 directories the file written will be the same as the one
1693 if (!IS_ABSOLUTE_PATH (history_filename))
1694 history_filename = reconcat (history_filename, current_directory, "/",
1695 history_filename, (char *) NULL);
1701 /* Initialize the prompt to a simple "(gdb) " prompt or to whatever
1702 the DEFAULT_PROMPT is. */
1703 set_prompt (DEFAULT_PROMPT);
1705 /* Set things up for annotation_level > 1, if the user ever decides
1707 async_annotation_suffix = "prompt";
1709 /* Set the important stuff up for command editing. */
1710 command_editing_p = 1;
1711 history_expansion_p = 0;
1712 write_history_p = 0;
1714 /* Setup important stuff for command line editing. */
1715 rl_completion_word_break_hook = gdb_completion_word_break_characters;
1716 rl_completion_entry_function = readline_line_completion_function;
1717 rl_completer_word_break_characters = default_word_break_characters ();
1718 rl_completer_quote_characters = get_gdb_completer_quote_characters ();
1719 rl_readline_name = "gdb";
1720 rl_terminal_name = getenv ("TERM");
1722 /* The name for this defun comes from Bash, where it originated.
1723 15 is Control-o, the same binding this function has in Bash. */
1724 rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15);
1726 add_setshow_string_cmd ("prompt", class_support,
1728 _("Set gdb's prompt"),
1729 _("Show gdb's prompt"),
1732 &setlist, &showlist);
1734 add_com ("dont-repeat", class_support, dont_repeat_command, _("\
1735 Don't repeat this command.\nPrimarily \
1736 used inside of user-defined commands that should not be repeated when\n\
1739 add_setshow_boolean_cmd ("editing", class_support,
1740 &async_command_editing_p, _("\
1741 Set editing of command lines as they are typed."), _("\
1742 Show editing of command lines as they are typed."), _("\
1743 Use \"on\" to enable the editing, and \"off\" to disable it.\n\
1744 Without an argument, command line editing is enabled. To edit, use\n\
1745 EMACS-like or VI-like commands like control-P or ESC."),
1746 set_async_editing_command,
1747 show_async_command_editing_p,
1748 &setlist, &showlist);
1750 add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\
1751 Set saving of the history record on exit."), _("\
1752 Show saving of the history record on exit."), _("\
1753 Use \"on\" to enable the saving, and \"off\" to disable it.\n\
1754 Without an argument, saving is enabled."),
1756 show_write_history_p,
1757 &sethistlist, &showhistlist);
1759 add_setshow_uinteger_cmd ("size", no_class, &history_size_setshow_var, _("\
1760 Set the size of the command history,"), _("\
1761 Show the size of the command history,"), _("\
1762 ie. the number of previous commands to keep a record of.\n\
1763 If set to \"unlimited\", the number of commands kept in the history\n\
1764 list is unlimited. This defaults to the value of the environment\n\
1765 variable \"HISTSIZE\", or to 256 if this variable is not set."),
1766 set_history_size_command,
1768 &sethistlist, &showhistlist);
1770 add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\
1771 Set the filename in which to record the command history"), _("\
1772 Show the filename in which to record the command history"), _("\
1773 (the list of previous commands of which a record is kept)."),
1774 set_history_filename,
1775 show_history_filename,
1776 &sethistlist, &showhistlist);
1778 add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\
1779 Set whether to confirm potentially dangerous operations."), _("\
1780 Show whether to confirm potentially dangerous operations."), NULL,
1783 &setlist, &showlist);
1785 add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\
1786 Set annotation_level."), _("\
1787 Show annotation_level."), _("\
1788 0 == normal; 1 == fullname (for use when running under emacs)\n\
1789 2 == output annotated suitably for use by programs that control GDB."),
1791 show_annotation_level,
1792 &setlist, &showlist);
1794 add_setshow_boolean_cmd ("exec-done-display", class_support,
1795 &exec_done_display_p, _("\
1796 Set notification of completion for asynchronous execution commands."), _("\
1797 Show notification of completion for asynchronous execution commands."), _("\
1798 Use \"on\" to enable the notification, and \"off\" to disable it."),
1800 show_exec_done_display_p,
1801 &setlist, &showlist);
1803 add_setshow_filename_cmd ("data-directory", class_maintenance,
1804 &gdb_datadir, _("Set GDB's data directory."),
1805 _("Show GDB's data directory."),
1807 When set, GDB uses the specified path to search for data files."),
1808 set_gdb_datadir, NULL,
1814 gdb_init (char *argv0)
1816 if (pre_init_ui_hook)
1817 pre_init_ui_hook ();
1819 /* Run the init function of each source file. */
1822 /* Make sure we return to the original directory upon exit, come
1823 what may, since the OS doesn't do that for us. */
1824 make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory));
1827 init_cmd_lists (); /* This needs to be done first. */
1828 initialize_targets (); /* Setup target_terminal macros for utils.c. */
1829 initialize_utils (); /* Make errors and warnings possible. */
1831 /* Here is where we call all the _initialize_foo routines. */
1832 initialize_all_files ();
1834 /* This creates the current_program_space. Do this after all the
1835 _initialize_foo routines have had a chance to install their
1836 per-sspace data keys. Also do this before
1837 initialize_current_architecture is called, because it accesses
1838 exec_bfd of the current program space. */
1839 initialize_progspace ();
1840 initialize_inferiors ();
1841 initialize_current_architecture ();
1843 initialize_event_loop ();
1844 init_main (); /* But that omits this file! Do it now. */
1846 initialize_stdin_serial ();
1848 async_init_signals ();
1850 /* We need a default language for parsing expressions, so simple
1851 things like "set width 0" won't fail if no language is explicitly
1852 set in a config file or implicitly set by reading an executable
1854 set_language (language_c);
1855 expected_language = current_language; /* Don't warn about the change. */
1857 /* Allow another UI to initialize. If the UI fails to initialize,
1858 and it wants GDB to revert to the CLI, it should clear
1859 deprecated_init_ui_hook. */
1860 if (deprecated_init_ui_hook)
1861 deprecated_init_ui_hook (argv0);
1864 /* Python initialization can require various commands to be
1865 installed. For example "info pretty-printer" needs the "info"
1866 prefix to be installed. Keep things simple and just do final
1867 python initialization here. */
1868 finish_python_initialization ();