1 /* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
3 Copyright (C) 2002-2016 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 "event-top.h"
23 #include "event-loop.h"
31 #include "mi-console.h"
32 #include "mi-common.h"
34 #include "gdbthread.h"
38 #include "tracepoint.h"
40 #include "thread-fsm.h"
42 /* These are the interpreter setup, etc. functions for the MI
45 static void mi_execute_command_wrapper (const char *cmd);
46 static void mi_execute_command_input_handler (char *cmd);
47 static void mi_command_loop (void *data);
49 /* These are hooks that we put in place while doing interpreter_exec
50 so we can report interesting things that happened "behind the MI's
51 back" in this command. */
53 static int mi_interp_query_hook (const char *ctlstr, va_list ap)
54 ATTRIBUTE_PRINTF (1, 0);
56 static void mi_insert_notify_hooks (void);
57 static void mi_remove_notify_hooks (void);
59 static void mi_on_signal_received (enum gdb_signal siggnal);
60 static void mi_on_end_stepping_range (void);
61 static void mi_on_signal_exited (enum gdb_signal siggnal);
62 static void mi_on_exited (int exitstatus);
63 static void mi_on_normal_stop (struct bpstats *bs, int print_frame);
64 static void mi_on_no_history (void);
66 static void mi_new_thread (struct thread_info *t);
67 static void mi_thread_exit (struct thread_info *t, int silent);
68 static void mi_record_changed (struct inferior*, int, const char *,
70 static void mi_inferior_added (struct inferior *inf);
71 static void mi_inferior_appeared (struct inferior *inf);
72 static void mi_inferior_exit (struct inferior *inf);
73 static void mi_inferior_removed (struct inferior *inf);
74 static void mi_on_resume (ptid_t ptid);
75 static void mi_solib_loaded (struct so_list *solib);
76 static void mi_solib_unloaded (struct so_list *solib);
77 static void mi_about_to_proceed (void);
78 static void mi_traceframe_changed (int tfnum, int tpnum);
79 static void mi_tsv_created (const struct trace_state_variable *tsv);
80 static void mi_tsv_deleted (const struct trace_state_variable *tsv);
81 static void mi_tsv_modified (const struct trace_state_variable *tsv);
82 static void mi_breakpoint_created (struct breakpoint *b);
83 static void mi_breakpoint_deleted (struct breakpoint *b);
84 static void mi_breakpoint_modified (struct breakpoint *b);
85 static void mi_command_param_changed (const char *param, const char *value);
86 static void mi_memory_changed (struct inferior *inf, CORE_ADDR memaddr,
87 ssize_t len, const bfd_byte *myaddr);
88 static void mi_on_sync_execution_done (void);
90 static int report_initial_inferior (struct inferior *inf, void *closure);
93 mi_interpreter_init (struct interp *interp, int top_level)
95 struct mi_interp *mi = XNEW (struct mi_interp);
99 /* Assign the output channel created at startup to its own global,
100 so that we can create a console channel that encapsulates and
101 prefixes all gdb_output-type bits coming from the rest of the
104 raw_stdout = gdb_stdout;
106 /* Create MI console channels, each with a different prefix so they
107 can be distinguished. */
108 mi->out = mi_console_file_new (raw_stdout, "~", '"');
109 mi->err = mi_console_file_new (raw_stdout, "&", '"');
111 mi->targ = mi_console_file_new (raw_stdout, "@", '"');
112 mi->event_channel = mi_console_file_new (raw_stdout, "=", 0);
114 name = interp_name (interp);
115 /* INTERP_MI selects the most recent released version. "mi2" was
116 released as part of GDB 6.0. */
117 if (strcmp (name, INTERP_MI) == 0)
119 else if (strcmp (name, INTERP_MI1) == 0)
121 else if (strcmp (name, INTERP_MI2) == 0)
123 else if (strcmp (name, INTERP_MI3) == 0)
126 gdb_assert_not_reached ("unhandled MI version");
128 mi->mi_uiout = mi_out_new (mi_version);
129 mi->cli_uiout = cli_out_new (mi->out);
131 /* There are installed even if MI is not the top level interpreter.
132 The callbacks themselves decide whether to be skipped. */
133 observer_attach_signal_received (mi_on_signal_received);
134 observer_attach_end_stepping_range (mi_on_end_stepping_range);
135 observer_attach_signal_exited (mi_on_signal_exited);
136 observer_attach_exited (mi_on_exited);
137 observer_attach_no_history (mi_on_no_history);
141 observer_attach_new_thread (mi_new_thread);
142 observer_attach_thread_exit (mi_thread_exit);
143 observer_attach_inferior_added (mi_inferior_added);
144 observer_attach_inferior_appeared (mi_inferior_appeared);
145 observer_attach_inferior_exit (mi_inferior_exit);
146 observer_attach_inferior_removed (mi_inferior_removed);
147 observer_attach_record_changed (mi_record_changed);
148 observer_attach_normal_stop (mi_on_normal_stop);
149 observer_attach_target_resumed (mi_on_resume);
150 observer_attach_solib_loaded (mi_solib_loaded);
151 observer_attach_solib_unloaded (mi_solib_unloaded);
152 observer_attach_about_to_proceed (mi_about_to_proceed);
153 observer_attach_traceframe_changed (mi_traceframe_changed);
154 observer_attach_tsv_created (mi_tsv_created);
155 observer_attach_tsv_deleted (mi_tsv_deleted);
156 observer_attach_tsv_modified (mi_tsv_modified);
157 observer_attach_breakpoint_created (mi_breakpoint_created);
158 observer_attach_breakpoint_deleted (mi_breakpoint_deleted);
159 observer_attach_breakpoint_modified (mi_breakpoint_modified);
160 observer_attach_command_param_changed (mi_command_param_changed);
161 observer_attach_memory_changed (mi_memory_changed);
162 observer_attach_sync_execution_done (mi_on_sync_execution_done);
164 /* The initial inferior is created before this function is
165 called, so we need to report it explicitly. Use iteration in
166 case future version of GDB creates more than one inferior
168 iterate_over_inferiors (report_initial_inferior, mi);
175 mi_interpreter_resume (void *data)
177 struct mi_interp *mi = (struct mi_interp *) data;
179 /* As per hack note in mi_interpreter_init, swap in the output
181 gdb_setup_readline ();
183 /* These overwrite some of the initialization done in
184 _intialize_event_loop. */
185 call_readline = gdb_readline_no_editing_callback;
186 input_handler = mi_execute_command_input_handler;
187 async_command_editing_p = 0;
188 /* FIXME: This is a total hack for now. PB's use of the MI
189 implicitly relies on a bug in the async support which allows
190 asynchronous commands to leak through the commmand loop. The bug
191 involves (but is not limited to) the fact that sync_execution was
192 erroneously initialized to 0. Duplicate by initializing it thus
196 gdb_stdout = mi->out;
197 /* Route error and log output through the MI. */
198 gdb_stderr = mi->err;
199 gdb_stdlog = mi->log;
200 /* Route target output through the MI. */
201 gdb_stdtarg = mi->targ;
202 /* Route target error through the MI as well. */
203 gdb_stdtargerr = mi->targ;
205 /* Replace all the hooks that we know about. There really needs to
206 be a better way of doing this... */
207 clear_interpreter_hooks ();
209 deprecated_show_load_progress = mi_load_progress;
215 mi_interpreter_suspend (void *data)
217 gdb_disable_readline ();
221 static struct gdb_exception
222 mi_interpreter_exec (void *data, const char *command)
224 mi_execute_command_wrapper (command);
225 return exception_none;
229 mi_cmd_interpreter_exec (char *command, char **argv, int argc)
231 struct interp *interp_to_use;
233 char *mi_error_message = NULL;
234 struct cleanup *old_chain;
237 error (_("-interpreter-exec: "
238 "Usage: -interpreter-exec interp command"));
240 interp_to_use = interp_lookup (argv[0]);
241 if (interp_to_use == NULL)
242 error (_("-interpreter-exec: could not find interpreter \"%s\""),
245 /* Note that unlike the CLI version of this command, we don't
246 actually set INTERP_TO_USE as the current interpreter, as we
247 still want gdb_stdout, etc. to point at MI streams. */
249 /* Insert the MI out hooks, making sure to also call the
250 interpreter's hooks if it has any. */
251 /* KRS: We shouldn't need this... Events should be installed and
252 they should just ALWAYS fire something out down the MI
254 mi_insert_notify_hooks ();
256 /* Now run the code. */
258 old_chain = make_cleanup (null_cleanup, 0);
259 for (i = 1; i < argc; i++)
261 struct gdb_exception e = interp_exec (interp_to_use, argv[i]);
265 mi_error_message = xstrdup (e.message);
266 make_cleanup (xfree, mi_error_message);
271 mi_remove_notify_hooks ();
273 if (mi_error_message != NULL)
274 error ("%s", mi_error_message);
275 do_cleanups (old_chain);
278 /* This inserts a number of hooks that are meant to produce
279 async-notify ("=") MI messages while running commands in another
280 interpreter using mi_interpreter_exec. The canonical use for this
281 is to allow access to the gdb CLI interpreter from within the MI,
282 while still producing MI style output when actions in the CLI
283 command change GDB's state. */
286 mi_insert_notify_hooks (void)
288 deprecated_query_hook = mi_interp_query_hook;
292 mi_remove_notify_hooks (void)
294 deprecated_query_hook = NULL;
298 mi_interp_query_hook (const char *ctlstr, va_list ap)
304 mi_execute_command_wrapper (const char *cmd)
306 mi_execute_command (cmd, stdin == instream);
309 /* Observer for the synchronous_command_done notification. */
312 mi_on_sync_execution_done (void)
314 /* If MI is sync, then output the MI prompt now, indicating we're
315 ready for further input. */
318 fputs_unfiltered ("(gdb) \n", raw_stdout);
319 gdb_flush (raw_stdout);
323 /* mi_execute_command_wrapper wrapper suitable for INPUT_HANDLER. */
326 mi_execute_command_input_handler (char *cmd)
328 mi_execute_command_wrapper (cmd);
330 /* Print a prompt, indicating we're ready for further input, unless
331 we just started a synchronous command. In that case, we're about
332 to go back to the event loop and will output the prompt in the
333 'synchronous_command_done' observer when the target next
337 fputs_unfiltered ("(gdb) \n", raw_stdout);
338 gdb_flush (raw_stdout);
343 mi_command_loop (void *data)
345 /* Turn off 8 bit strings in quoted output. Any character with the
346 high bit set is printed using C's octal format. */
347 sevenbit_strings = 1;
349 /* Tell the world that we're alive. */
350 fputs_unfiltered ("(gdb) \n", raw_stdout);
351 gdb_flush (raw_stdout);
357 mi_new_thread (struct thread_info *t)
359 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
360 struct inferior *inf = find_inferior_ptid (t->ptid);
361 struct cleanup *old_chain;
365 old_chain = make_cleanup_restore_target_terminal ();
366 target_terminal_ours_for_output ();
368 fprintf_unfiltered (mi->event_channel,
369 "thread-created,id=\"%d\",group-id=\"i%d\"",
370 t->global_num, inf->num);
371 gdb_flush (mi->event_channel);
373 do_cleanups (old_chain);
377 mi_thread_exit (struct thread_info *t, int silent)
379 struct mi_interp *mi;
380 struct inferior *inf;
381 struct cleanup *old_chain;
386 inf = find_inferior_ptid (t->ptid);
388 mi = (struct mi_interp *) top_level_interpreter_data ();
389 old_chain = make_cleanup_restore_target_terminal ();
390 target_terminal_ours_for_output ();
392 fprintf_unfiltered (mi->event_channel,
393 "thread-exited,id=\"%d\",group-id=\"i%d\"",
394 t->global_num, inf->num);
395 gdb_flush (mi->event_channel);
397 do_cleanups (old_chain);
400 /* Emit notification on changing the state of record. */
403 mi_record_changed (struct inferior *inferior, int started, const char *method,
406 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
407 struct cleanup *old_chain;
409 old_chain = make_cleanup_restore_target_terminal ();
410 target_terminal_ours_for_output ();
417 "record-started,thread-group=\"i%d\",method=\"%s\",format=\"%s\"",
418 inferior->num, method, format);
422 "record-started,thread-group=\"i%d\",method=\"%s\"",
423 inferior->num, method);
426 fprintf_unfiltered (mi->event_channel,
427 "record-stopped,thread-group=\"i%d\"", inferior->num);
430 gdb_flush (mi->event_channel);
432 do_cleanups (old_chain);
436 mi_inferior_added (struct inferior *inf)
438 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
439 struct cleanup *old_chain;
441 old_chain = make_cleanup_restore_target_terminal ();
442 target_terminal_ours_for_output ();
444 fprintf_unfiltered (mi->event_channel,
445 "thread-group-added,id=\"i%d\"",
447 gdb_flush (mi->event_channel);
449 do_cleanups (old_chain);
453 mi_inferior_appeared (struct inferior *inf)
455 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
456 struct cleanup *old_chain;
458 old_chain = make_cleanup_restore_target_terminal ();
459 target_terminal_ours_for_output ();
461 fprintf_unfiltered (mi->event_channel,
462 "thread-group-started,id=\"i%d\",pid=\"%d\"",
464 gdb_flush (mi->event_channel);
466 do_cleanups (old_chain);
470 mi_inferior_exit (struct inferior *inf)
472 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
473 struct cleanup *old_chain;
475 old_chain = make_cleanup_restore_target_terminal ();
476 target_terminal_ours_for_output ();
478 if (inf->has_exit_code)
479 fprintf_unfiltered (mi->event_channel,
480 "thread-group-exited,id=\"i%d\",exit-code=\"%s\"",
481 inf->num, int_string (inf->exit_code, 8, 0, 0, 1));
483 fprintf_unfiltered (mi->event_channel,
484 "thread-group-exited,id=\"i%d\"", inf->num);
485 gdb_flush (mi->event_channel);
487 do_cleanups (old_chain);
491 mi_inferior_removed (struct inferior *inf)
493 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
494 struct cleanup *old_chain;
496 old_chain = make_cleanup_restore_target_terminal ();
497 target_terminal_ours_for_output ();
499 fprintf_unfiltered (mi->event_channel,
500 "thread-group-removed,id=\"i%d\"",
502 gdb_flush (mi->event_channel);
504 do_cleanups (old_chain);
507 /* Return the MI interpreter, if it is active -- either because it's
508 the top-level interpreter or the interpreter executing the current
509 command. Returns NULL if the MI interpreter is not being used. */
511 static struct interp *
512 find_mi_interpreter (void)
514 struct interp *interp;
516 interp = top_level_interpreter ();
517 if (ui_out_is_mi_like_p (interp_ui_out (interp)))
520 interp = command_interp ();
521 if (ui_out_is_mi_like_p (interp_ui_out (interp)))
527 /* Return the MI_INTERP structure of the active MI interpreter.
528 Returns NULL if MI is not active. */
530 static struct mi_interp *
531 mi_interp_data (void)
533 struct interp *interp = find_mi_interpreter ();
536 return (struct mi_interp *) interp_data (interp);
540 /* Observers for several run control events that print why the
541 inferior has stopped to both the the MI event channel and to the MI
542 console. If the MI interpreter is not active, print nothing. */
544 /* Observer for the signal_received notification. */
547 mi_on_signal_received (enum gdb_signal siggnal)
549 struct mi_interp *mi = mi_interp_data ();
554 print_signal_received_reason (mi->mi_uiout, siggnal);
555 print_signal_received_reason (mi->cli_uiout, siggnal);
558 /* Observer for the end_stepping_range notification. */
561 mi_on_end_stepping_range (void)
563 struct mi_interp *mi = mi_interp_data ();
568 print_end_stepping_range_reason (mi->mi_uiout);
569 print_end_stepping_range_reason (mi->cli_uiout);
572 /* Observer for the signal_exited notification. */
575 mi_on_signal_exited (enum gdb_signal siggnal)
577 struct mi_interp *mi = mi_interp_data ();
582 print_signal_exited_reason (mi->mi_uiout, siggnal);
583 print_signal_exited_reason (mi->cli_uiout, siggnal);
586 /* Observer for the exited notification. */
589 mi_on_exited (int exitstatus)
591 struct mi_interp *mi = mi_interp_data ();
596 print_exited_reason (mi->mi_uiout, exitstatus);
597 print_exited_reason (mi->cli_uiout, exitstatus);
600 /* Observer for the no_history notification. */
603 mi_on_no_history (void)
605 struct mi_interp *mi = mi_interp_data ();
610 print_no_history_reason (mi->mi_uiout);
611 print_no_history_reason (mi->cli_uiout);
615 mi_on_normal_stop (struct bpstats *bs, int print_frame)
617 /* Since this can be called when CLI command is executing,
618 using cli interpreter, be sure to use MI uiout for output,
619 not the current one. */
620 struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
624 struct thread_info *tp;
627 tp = inferior_thread ();
629 if (tp->thread_fsm != NULL
630 && thread_fsm_finished_p (tp->thread_fsm))
632 enum async_reply_reason reason;
634 reason = thread_fsm_async_reply_reason (tp->thread_fsm);
635 ui_out_field_string (mi_uiout, "reason",
636 async_reason_lookup (reason));
638 print_stop_event (mi_uiout);
640 /* Breakpoint hits should always be mirrored to the console.
641 Deciding what to mirror to the console wrt to breakpoints and
642 random stops gets messy real fast. E.g., say "s" trips on a
643 breakpoint. We'd clearly want to mirror the event to the
644 console in this case. But what about more complicated cases
645 like "s&; thread n; s&", and one of those steps spawning a
646 new thread, and that thread hitting a breakpoint? It's
647 impossible in general to track whether the thread had any
648 relation to the commands that had been executed. So we just
649 simplify and always mirror breakpoints and random events to
652 OTOH, we should print the source line to the console when
653 stepping or other similar commands, iff the step was started
654 by a console command, but not if it was started with
655 -exec-step or similar. */
656 if ((bpstat_what (tp->control.stop_bpstat).main_action
657 == BPSTAT_WHAT_STOP_NOISY)
658 || !(tp->thread_fsm != NULL
659 && thread_fsm_finished_p (tp->thread_fsm))
660 || (tp->control.command_interp != NULL
661 && tp->control.command_interp != top_level_interpreter ()))
664 = (struct mi_interp *) top_level_interpreter_data ();
666 print_stop_event (mi->cli_uiout);
669 tp = inferior_thread ();
670 ui_out_field_int (mi_uiout, "thread-id", tp->global_num);
673 struct cleanup *back_to = make_cleanup_ui_out_list_begin_end
674 (mi_uiout, "stopped-threads");
676 ui_out_field_int (mi_uiout, NULL, tp->global_num);
677 do_cleanups (back_to);
680 ui_out_field_string (mi_uiout, "stopped-threads", "all");
682 core = target_core_of_thread (inferior_ptid);
684 ui_out_field_int (mi_uiout, "core", core);
687 fputs_unfiltered ("*stopped", raw_stdout);
688 mi_out_put (mi_uiout, raw_stdout);
689 mi_out_rewind (mi_uiout);
690 mi_print_timing_maybe ();
691 fputs_unfiltered ("\n", raw_stdout);
692 gdb_flush (raw_stdout);
696 mi_about_to_proceed (void)
698 /* Suppress output while calling an inferior function. */
700 if (!ptid_equal (inferior_ptid, null_ptid))
702 struct thread_info *tp = inferior_thread ();
704 if (tp->control.in_infcall)
711 /* When the element is non-zero, no MI notifications will be emitted in
712 response to the corresponding observers. */
714 struct mi_suppress_notification mi_suppress_notification =
721 /* Emit notification on changing a traceframe. */
724 mi_traceframe_changed (int tfnum, int tpnum)
726 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
727 struct cleanup *old_chain;
729 if (mi_suppress_notification.traceframe)
732 old_chain = make_cleanup_restore_target_terminal ();
733 target_terminal_ours_for_output ();
736 fprintf_unfiltered (mi->event_channel, "traceframe-changed,"
737 "num=\"%d\",tracepoint=\"%d\"\n",
740 fprintf_unfiltered (mi->event_channel, "traceframe-changed,end");
742 gdb_flush (mi->event_channel);
744 do_cleanups (old_chain);
747 /* Emit notification on creating a trace state variable. */
750 mi_tsv_created (const struct trace_state_variable *tsv)
752 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
753 struct cleanup *old_chain;
755 old_chain = make_cleanup_restore_target_terminal ();
756 target_terminal_ours_for_output ();
758 fprintf_unfiltered (mi->event_channel, "tsv-created,"
759 "name=\"%s\",initial=\"%s\"\n",
760 tsv->name, plongest (tsv->initial_value));
762 gdb_flush (mi->event_channel);
764 do_cleanups (old_chain);
767 /* Emit notification on deleting a trace state variable. */
770 mi_tsv_deleted (const struct trace_state_variable *tsv)
772 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
773 struct cleanup *old_chain;
775 old_chain = make_cleanup_restore_target_terminal ();
776 target_terminal_ours_for_output ();
779 fprintf_unfiltered (mi->event_channel, "tsv-deleted,"
780 "name=\"%s\"\n", tsv->name);
782 fprintf_unfiltered (mi->event_channel, "tsv-deleted\n");
784 gdb_flush (mi->event_channel);
786 do_cleanups (old_chain);
789 /* Emit notification on modifying a trace state variable. */
792 mi_tsv_modified (const struct trace_state_variable *tsv)
794 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
795 struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
796 struct cleanup *old_chain;
798 old_chain = make_cleanup_restore_target_terminal ();
799 target_terminal_ours_for_output ();
801 fprintf_unfiltered (mi->event_channel,
804 ui_out_redirect (mi_uiout, mi->event_channel);
806 ui_out_field_string (mi_uiout, "name", tsv->name);
807 ui_out_field_string (mi_uiout, "initial",
808 plongest (tsv->initial_value));
809 if (tsv->value_known)
810 ui_out_field_string (mi_uiout, "current", plongest (tsv->value));
812 ui_out_redirect (mi_uiout, NULL);
814 gdb_flush (mi->event_channel);
816 do_cleanups (old_chain);
819 /* Emit notification about a created breakpoint. */
822 mi_breakpoint_created (struct breakpoint *b)
824 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
825 struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
826 struct cleanup *old_chain;
828 if (mi_suppress_notification.breakpoint)
834 old_chain = make_cleanup_restore_target_terminal ();
835 target_terminal_ours_for_output ();
837 fprintf_unfiltered (mi->event_channel,
838 "breakpoint-created");
839 /* We want the output from gdb_breakpoint_query to go to
840 mi->event_channel. One approach would be to just call
841 gdb_breakpoint_query, and then use mi_out_put to send the current
842 content of mi_outout into mi->event_channel. However, that will
843 break if anything is output to mi_uiout prior to calling the
844 breakpoint_created notifications. So, we use
846 ui_out_redirect (mi_uiout, mi->event_channel);
849 gdb_breakpoint_query (mi_uiout, b->number, NULL);
851 CATCH (e, RETURN_MASK_ERROR)
856 ui_out_redirect (mi_uiout, NULL);
858 gdb_flush (mi->event_channel);
860 do_cleanups (old_chain);
863 /* Emit notification about deleted breakpoint. */
866 mi_breakpoint_deleted (struct breakpoint *b)
868 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
869 struct cleanup *old_chain;
871 if (mi_suppress_notification.breakpoint)
877 old_chain = make_cleanup_restore_target_terminal ();
878 target_terminal_ours_for_output ();
880 fprintf_unfiltered (mi->event_channel, "breakpoint-deleted,id=\"%d\"",
883 gdb_flush (mi->event_channel);
885 do_cleanups (old_chain);
888 /* Emit notification about modified breakpoint. */
891 mi_breakpoint_modified (struct breakpoint *b)
893 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
894 struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
895 struct cleanup *old_chain;
897 if (mi_suppress_notification.breakpoint)
903 old_chain = make_cleanup_restore_target_terminal ();
904 target_terminal_ours_for_output ();
906 fprintf_unfiltered (mi->event_channel,
907 "breakpoint-modified");
908 /* We want the output from gdb_breakpoint_query to go to
909 mi->event_channel. One approach would be to just call
910 gdb_breakpoint_query, and then use mi_out_put to send the current
911 content of mi_outout into mi->event_channel. However, that will
912 break if anything is output to mi_uiout prior to calling the
913 breakpoint_created notifications. So, we use
915 ui_out_redirect (mi_uiout, mi->event_channel);
918 gdb_breakpoint_query (mi_uiout, b->number, NULL);
920 CATCH (e, RETURN_MASK_ERROR)
925 ui_out_redirect (mi_uiout, NULL);
927 gdb_flush (mi->event_channel);
929 do_cleanups (old_chain);
933 mi_output_running_pid (struct thread_info *info, void *arg)
935 ptid_t *ptid = (ptid_t *) arg;
937 if (ptid_get_pid (*ptid) == ptid_get_pid (info->ptid))
938 fprintf_unfiltered (raw_stdout,
939 "*running,thread-id=\"%d\"\n",
946 mi_inferior_count (struct inferior *inf, void *arg)
950 int *count_p = (int *) arg;
958 mi_on_resume (ptid_t ptid)
960 struct thread_info *tp = NULL;
962 if (ptid_equal (ptid, minus_one_ptid) || ptid_is_pid (ptid))
963 tp = inferior_thread ();
965 tp = find_thread_ptid (ptid);
967 /* Suppress output while calling an inferior function. */
968 if (tp->control.in_infcall)
971 /* To cater for older frontends, emit ^running, but do it only once
972 per each command. We do it here, since at this point we know
973 that the target was successfully resumed, and in non-async mode,
974 we won't return back to MI interpreter code until the target
975 is done running, so delaying the output of "^running" until then
976 will make it impossible for frontend to know what's going on.
978 In future (MI3), we'll be outputting "^done" here. */
979 if (!running_result_record_printed && mi_proceeded)
981 fprintf_unfiltered (raw_stdout, "%s^running\n",
982 current_token ? current_token : "");
985 if (ptid_get_pid (ptid) == -1)
986 fprintf_unfiltered (raw_stdout, "*running,thread-id=\"all\"\n");
987 else if (ptid_is_pid (ptid))
991 /* Backwards compatibility. If there's only one inferior,
992 output "all", otherwise, output each resumed thread
994 iterate_over_inferiors (mi_inferior_count, &count);
997 fprintf_unfiltered (raw_stdout, "*running,thread-id=\"all\"\n");
999 iterate_over_threads (mi_output_running_pid, &ptid);
1003 struct thread_info *ti = find_thread_ptid (ptid);
1006 fprintf_unfiltered (raw_stdout, "*running,thread-id=\"%d\"\n",
1010 if (!running_result_record_printed && mi_proceeded)
1012 running_result_record_printed = 1;
1013 /* This is what gdb used to do historically -- printing prompt even if
1014 it cannot actually accept any input. This will be surely removed
1015 for MI3, and may be removed even earlier. SYNC_EXECUTION is
1016 checked here because we only need to emit a prompt if a
1017 synchronous command was issued when the target is async. */
1018 if (!target_can_async_p () || sync_execution)
1019 fputs_unfiltered ("(gdb) \n", raw_stdout);
1021 gdb_flush (raw_stdout);
1025 mi_solib_loaded (struct so_list *solib)
1027 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
1028 struct ui_out *uiout = interp_ui_out (top_level_interpreter ());
1029 struct cleanup *old_chain;
1031 old_chain = make_cleanup_restore_target_terminal ();
1032 target_terminal_ours_for_output ();
1034 fprintf_unfiltered (mi->event_channel, "library-loaded");
1036 ui_out_redirect (uiout, mi->event_channel);
1038 ui_out_field_string (uiout, "id", solib->so_original_name);
1039 ui_out_field_string (uiout, "target-name", solib->so_original_name);
1040 ui_out_field_string (uiout, "host-name", solib->so_name);
1041 ui_out_field_int (uiout, "symbols-loaded", solib->symbols_loaded);
1042 if (!gdbarch_has_global_solist (target_gdbarch ()))
1044 ui_out_field_fmt (uiout, "thread-group", "i%d",
1045 current_inferior ()->num);
1048 ui_out_redirect (uiout, NULL);
1050 gdb_flush (mi->event_channel);
1052 do_cleanups (old_chain);
1056 mi_solib_unloaded (struct so_list *solib)
1058 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
1059 struct ui_out *uiout = interp_ui_out (top_level_interpreter ());
1060 struct cleanup *old_chain;
1062 old_chain = make_cleanup_restore_target_terminal ();
1063 target_terminal_ours_for_output ();
1065 fprintf_unfiltered (mi->event_channel, "library-unloaded");
1067 ui_out_redirect (uiout, mi->event_channel);
1069 ui_out_field_string (uiout, "id", solib->so_original_name);
1070 ui_out_field_string (uiout, "target-name", solib->so_original_name);
1071 ui_out_field_string (uiout, "host-name", solib->so_name);
1072 if (!gdbarch_has_global_solist (target_gdbarch ()))
1074 ui_out_field_fmt (uiout, "thread-group", "i%d",
1075 current_inferior ()->num);
1078 ui_out_redirect (uiout, NULL);
1080 gdb_flush (mi->event_channel);
1082 do_cleanups (old_chain);
1085 /* Emit notification about the command parameter change. */
1088 mi_command_param_changed (const char *param, const char *value)
1090 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
1091 struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
1092 struct cleanup *old_chain;
1094 if (mi_suppress_notification.cmd_param_changed)
1097 old_chain = make_cleanup_restore_target_terminal ();
1098 target_terminal_ours_for_output ();
1100 fprintf_unfiltered (mi->event_channel,
1101 "cmd-param-changed");
1103 ui_out_redirect (mi_uiout, mi->event_channel);
1105 ui_out_field_string (mi_uiout, "param", param);
1106 ui_out_field_string (mi_uiout, "value", value);
1108 ui_out_redirect (mi_uiout, NULL);
1110 gdb_flush (mi->event_channel);
1112 do_cleanups (old_chain);
1115 /* Emit notification about the target memory change. */
1118 mi_memory_changed (struct inferior *inferior, CORE_ADDR memaddr,
1119 ssize_t len, const bfd_byte *myaddr)
1121 struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data ();
1122 struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
1123 struct obj_section *sec;
1124 struct cleanup *old_chain;
1126 if (mi_suppress_notification.memory)
1129 old_chain = make_cleanup_restore_target_terminal ();
1130 target_terminal_ours_for_output ();
1132 fprintf_unfiltered (mi->event_channel,
1135 ui_out_redirect (mi_uiout, mi->event_channel);
1137 ui_out_field_fmt (mi_uiout, "thread-group", "i%d", inferior->num);
1138 ui_out_field_core_addr (mi_uiout, "addr", target_gdbarch (), memaddr);
1139 ui_out_field_fmt (mi_uiout, "len", "%s", hex_string (len));
1141 /* Append 'type=code' into notification if MEMADDR falls in the range of
1142 sections contain code. */
1143 sec = find_pc_section (memaddr);
1144 if (sec != NULL && sec->objfile != NULL)
1146 flagword flags = bfd_get_section_flags (sec->objfile->obfd,
1147 sec->the_bfd_section);
1149 if (flags & SEC_CODE)
1150 ui_out_field_string (mi_uiout, "type", "code");
1153 ui_out_redirect (mi_uiout, NULL);
1155 gdb_flush (mi->event_channel);
1157 do_cleanups (old_chain);
1161 report_initial_inferior (struct inferior *inf, void *closure)
1163 /* This function is called from mi_intepreter_init, and since
1164 mi_inferior_added assumes that inferior is fully initialized
1165 and top_level_interpreter_data is set, we cannot call
1167 struct mi_interp *mi = (struct mi_interp *) closure;
1168 struct cleanup *old_chain;
1170 old_chain = make_cleanup_restore_target_terminal ();
1171 target_terminal_ours_for_output ();
1173 fprintf_unfiltered (mi->event_channel,
1174 "thread-group-added,id=\"i%d\"",
1176 gdb_flush (mi->event_channel);
1178 do_cleanups (old_chain);
1182 static struct ui_out *
1183 mi_ui_out (struct interp *interp)
1185 struct mi_interp *mi = (struct mi_interp *) interp_data (interp);
1187 return mi->mi_uiout;
1190 /* Save the original value of raw_stdout here when logging, so we can
1191 restore correctly when done. */
1193 static struct ui_file *saved_raw_stdout;
1195 /* Do MI-specific logging actions; save raw_stdout, and change all
1196 the consoles to use the supplied ui-file(s). */
1199 mi_set_logging (struct interp *interp, int start_log,
1200 struct ui_file *out, struct ui_file *logfile)
1202 struct mi_interp *mi = (struct mi_interp *) interp_data (interp);
1209 /* The tee created already is based on gdb_stdout, which for MI
1210 is a console and so we end up in an infinite loop of console
1211 writing to ui_file writing to console etc. So discard the
1212 existing tee (it hasn't been used yet, and MI won't ever use
1213 it), and create one based on raw_stdout instead. */
1216 ui_file_delete (out);
1217 out = tee_file_new (raw_stdout, 0, logfile, 0);
1220 saved_raw_stdout = raw_stdout;
1225 raw_stdout = saved_raw_stdout;
1226 saved_raw_stdout = NULL;
1229 mi_console_set_raw (mi->out, raw_stdout);
1230 mi_console_set_raw (mi->err, raw_stdout);
1231 mi_console_set_raw (mi->log, raw_stdout);
1232 mi_console_set_raw (mi->targ, raw_stdout);
1233 mi_console_set_raw (mi->event_channel, raw_stdout);
1238 extern initialize_file_ftype _initialize_mi_interp; /* -Wmissing-prototypes */
1241 _initialize_mi_interp (void)
1243 static const struct interp_procs procs =
1245 mi_interpreter_init, /* init_proc */
1246 mi_interpreter_resume, /* resume_proc */
1247 mi_interpreter_suspend, /* suspend_proc */
1248 mi_interpreter_exec, /* exec_proc */
1249 mi_ui_out, /* ui_out_proc */
1250 mi_set_logging, /* set_logging_proc */
1251 mi_command_loop /* command_loop_proc */
1254 /* The various interpreter levels. */
1255 interp_add (interp_new (INTERP_MI1, &procs));
1256 interp_add (interp_new (INTERP_MI2, &procs));
1257 interp_add (interp_new (INTERP_MI3, &procs));
1258 interp_add (interp_new (INTERP_MI, &procs));