/* MI Interpreter Definitions and Commands for GDB, the GNU debugger. Copyright (C) 2002-2016 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include "defs.h" #include "interps.h" #include "event-top.h" #include "event-loop.h" #include "inferior.h" #include "infrun.h" #include "ui-out.h" #include "top.h" #include "mi-main.h" #include "mi-cmds.h" #include "mi-out.h" #include "mi-console.h" #include "mi-common.h" #include "observer.h" #include "gdbthread.h" #include "solist.h" #include "gdb.h" #include "objfiles.h" #include "tracepoint.h" #include "cli-out.h" #include "thread-fsm.h" /* These are the interpreter setup, etc. functions for the MI interpreter. */ static void mi_execute_command_wrapper (const char *cmd); static void mi_execute_command_input_handler (char *cmd); /* These are hooks that we put in place while doing interpreter_exec so we can report interesting things that happened "behind the MI's back" in this command. */ static int mi_interp_query_hook (const char *ctlstr, va_list ap) ATTRIBUTE_PRINTF (1, 0); static void mi_insert_notify_hooks (void); static void mi_remove_notify_hooks (void); static void mi_on_signal_received (enum gdb_signal siggnal); static void mi_on_end_stepping_range (void); static void mi_on_signal_exited (enum gdb_signal siggnal); static void mi_on_exited (int exitstatus); static void mi_on_normal_stop (struct bpstats *bs, int print_frame); static void mi_on_no_history (void); static void mi_new_thread (struct thread_info *t); static void mi_thread_exit (struct thread_info *t, int silent); static void mi_record_changed (struct inferior*, int, const char *, const char *); static void mi_inferior_added (struct inferior *inf); static void mi_inferior_appeared (struct inferior *inf); static void mi_inferior_exit (struct inferior *inf); static void mi_inferior_removed (struct inferior *inf); static void mi_on_resume (ptid_t ptid); static void mi_solib_loaded (struct so_list *solib); static void mi_solib_unloaded (struct so_list *solib); static void mi_about_to_proceed (void); static void mi_traceframe_changed (int tfnum, int tpnum); static void mi_tsv_created (const struct trace_state_variable *tsv); static void mi_tsv_deleted (const struct trace_state_variable *tsv); static void mi_tsv_modified (const struct trace_state_variable *tsv); static void mi_breakpoint_created (struct breakpoint *b); static void mi_breakpoint_deleted (struct breakpoint *b); static void mi_breakpoint_modified (struct breakpoint *b); static void mi_command_param_changed (const char *param, const char *value); static void mi_memory_changed (struct inferior *inf, CORE_ADDR memaddr, ssize_t len, const bfd_byte *myaddr); static void mi_on_sync_execution_done (void); static int report_initial_inferior (struct inferior *inf, void *closure); /* Display the MI prompt. */ static void display_mi_prompt (struct mi_interp *mi) { struct ui *ui = current_ui; fputs_unfiltered ("(gdb) \n", mi->raw_stdout); gdb_flush (mi->raw_stdout); ui->prompt_state = PROMPTED; } /* Returns the INTERP's data cast as mi_interp if INTERP is an MI, and returns NULL otherwise. */ static struct mi_interp * as_mi_interp (struct interp *interp) { if (ui_out_is_mi_like_p (interp_ui_out (interp))) return (struct mi_interp *) interp_data (interp); return NULL; } static void * mi_interpreter_init (struct interp *interp, int top_level) { struct mi_interp *mi = XNEW (struct mi_interp); const char *name; int mi_version; /* Store the current output channel, so that we can create a console channel that encapsulates and prefixes all gdb_output-type bits coming from the rest of the debugger. */ mi->raw_stdout = gdb_stdout; /* Create MI console channels, each with a different prefix so they can be distinguished. */ mi->out = mi_console_file_new (mi->raw_stdout, "~", '"'); mi->err = mi_console_file_new (mi->raw_stdout, "&", '"'); mi->log = mi->err; mi->targ = mi_console_file_new (mi->raw_stdout, "@", '"'); mi->event_channel = mi_console_file_new (mi->raw_stdout, "=", 0); name = interp_name (interp); /* INTERP_MI selects the most recent released version. "mi2" was released as part of GDB 6.0. */ if (strcmp (name, INTERP_MI) == 0) mi_version = 2; else if (strcmp (name, INTERP_MI1) == 0) mi_version = 1; else if (strcmp (name, INTERP_MI2) == 0) mi_version = 2; else if (strcmp (name, INTERP_MI3) == 0) mi_version = 3; else gdb_assert_not_reached ("unhandled MI version"); mi->mi_uiout = mi_out_new (mi_version); mi->cli_uiout = cli_out_new (mi->out); if (top_level) { /* The initial inferior is created before this function is called, so we need to report it explicitly. Use iteration in case future version of GDB creates more than one inferior up-front. */ iterate_over_inferiors (report_initial_inferior, mi); } return mi; } static int mi_interpreter_resume (void *data) { struct mi_interp *mi = (struct mi_interp *) data; struct ui *ui = current_ui; /* As per hack note in mi_interpreter_init, swap in the output channels... */ gdb_setup_readline (0); ui->call_readline = gdb_readline_no_editing_callback; ui->input_handler = mi_execute_command_input_handler; gdb_stdout = mi->out; /* Route error and log output through the MI. */ gdb_stderr = mi->err; gdb_stdlog = mi->log; /* Route target output through the MI. */ gdb_stdtarg = mi->targ; /* Route target error through the MI as well. */ gdb_stdtargerr = mi->targ; /* Replace all the hooks that we know about. There really needs to be a better way of doing this... */ clear_interpreter_hooks (); deprecated_show_load_progress = mi_load_progress; return 1; } static int mi_interpreter_suspend (void *data) { gdb_disable_readline (); return 1; } static struct gdb_exception mi_interpreter_exec (void *data, const char *command) { mi_execute_command_wrapper (command); return exception_none; } void mi_cmd_interpreter_exec (char *command, char **argv, int argc) { struct interp *interp_to_use; int i; char *mi_error_message = NULL; struct cleanup *old_chain; if (argc < 2) error (_("-interpreter-exec: " "Usage: -interpreter-exec interp command")); interp_to_use = interp_lookup (current_ui, argv[0]); if (interp_to_use == NULL) error (_("-interpreter-exec: could not find interpreter \"%s\""), argv[0]); /* Note that unlike the CLI version of this command, we don't actually set INTERP_TO_USE as the current interpreter, as we still want gdb_stdout, etc. to point at MI streams. */ /* Insert the MI out hooks, making sure to also call the interpreter's hooks if it has any. */ /* KRS: We shouldn't need this... Events should be installed and they should just ALWAYS fire something out down the MI channel. */ mi_insert_notify_hooks (); /* Now run the code. */ old_chain = make_cleanup (null_cleanup, 0); for (i = 1; i < argc; i++) { struct gdb_exception e = interp_exec (interp_to_use, argv[i]); if (e.reason < 0) { mi_error_message = xstrdup (e.message); make_cleanup (xfree, mi_error_message); break; } } mi_remove_notify_hooks (); if (mi_error_message != NULL) error ("%s", mi_error_message); do_cleanups (old_chain); } /* This inserts a number of hooks that are meant to produce async-notify ("=") MI messages while running commands in another interpreter using mi_interpreter_exec. The canonical use for this is to allow access to the gdb CLI interpreter from within the MI, while still producing MI style output when actions in the CLI command change GDB's state. */ static void mi_insert_notify_hooks (void) { deprecated_query_hook = mi_interp_query_hook; } static void mi_remove_notify_hooks (void) { deprecated_query_hook = NULL; } static int mi_interp_query_hook (const char *ctlstr, va_list ap) { return 1; } static void mi_execute_command_wrapper (const char *cmd) { struct ui *ui = current_ui; mi_execute_command (cmd, stdin == ui->instream); } /* Observer for the synchronous_command_done notification. */ static void mi_on_sync_execution_done (void) { struct ui *ui = current_ui; struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); if (mi == NULL) return; /* If MI is sync, then output the MI prompt now, indicating we're ready for further input. */ if (!mi_async_p ()) display_mi_prompt (mi); } /* mi_execute_command_wrapper wrapper suitable for INPUT_HANDLER. */ static void mi_execute_command_input_handler (char *cmd) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui *ui = current_ui; ui->prompt_state = PROMPT_NEEDED; mi_execute_command_wrapper (cmd); /* Print a prompt, indicating we're ready for further input, unless we just started a synchronous command. In that case, we're about to go back to the event loop and will output the prompt in the 'synchronous_command_done' observer when the target next stops. */ if (ui->prompt_state == PROMPT_NEEDED) display_mi_prompt (mi); } static void mi_interpreter_pre_command_loop (struct interp *self) { struct mi_interp *mi = (struct mi_interp *) interp_data (self); /* Turn off 8 bit strings in quoted output. Any character with the high bit set is printed using C's octal format. */ sevenbit_strings = 1; /* Tell the world that we're alive. */ display_mi_prompt (mi); } static void mi_new_thread (struct thread_info *t) { struct inferior *inf = find_inferior_ptid (t->ptid); struct switch_thru_all_uis state; gdb_assert (inf); SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "thread-created,id=\"%d\",group-id=\"i%d\"", t->global_num, inf->num); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static void mi_thread_exit (struct thread_info *t, int silent) { struct switch_thru_all_uis state; if (silent) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "thread-exited,id=\"%d\",group-id=\"i%d\"", t->global_num, t->inf->num); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification on changing the state of record. */ static void mi_record_changed (struct inferior *inferior, int started, const char *method, const char *format) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); if (started) { if (format != NULL) { fprintf_unfiltered (mi->event_channel, "record-started,thread-group=\"i%d\"," "method=\"%s\",format=\"%s\"", inferior->num, method, format); } else { fprintf_unfiltered (mi->event_channel, "record-started,thread-group=\"i%d\"," "method=\"%s\"", inferior->num, method); } } else { fprintf_unfiltered (mi->event_channel, "record-stopped,thread-group=\"i%d\"", inferior->num); } gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static void mi_inferior_added (struct inferior *inf) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct interp *interp; struct mi_interp *mi; struct cleanup *old_chain; /* We'll be called once for the initial inferior, before the top level interpreter is set. */ interp = top_level_interpreter (); if (interp == NULL) continue; mi = as_mi_interp (interp); if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "thread-group-added,id=\"i%d\"", inf->num); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static void mi_inferior_appeared (struct inferior *inf) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "thread-group-started,id=\"i%d\",pid=\"%d\"", inf->num, inf->pid); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static void mi_inferior_exit (struct inferior *inf) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); if (inf->has_exit_code) fprintf_unfiltered (mi->event_channel, "thread-group-exited,id=\"i%d\",exit-code=\"%s\"", inf->num, int_string (inf->exit_code, 8, 0, 0, 1)); else fprintf_unfiltered (mi->event_channel, "thread-group-exited,id=\"i%d\"", inf->num); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static void mi_inferior_removed (struct inferior *inf) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "thread-group-removed,id=\"i%d\"", inf->num); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Return the MI interpreter, if it is active -- either because it's the top-level interpreter or the interpreter executing the current command. Returns NULL if the MI interpreter is not being used. */ static struct mi_interp * find_mi_interp (void) { struct mi_interp *mi; mi = as_mi_interp (top_level_interpreter ()); if (mi != NULL) return mi; mi = as_mi_interp (command_interp ()); if (mi != NULL) return mi; return NULL; } /* Observers for several run control events that print why the inferior has stopped to both the the MI event channel and to the MI console. If the MI interpreter is not active, print nothing. */ /* Observer for the signal_received notification. */ static void mi_on_signal_received (enum gdb_signal siggnal) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = find_mi_interp (); if (mi == NULL) continue; print_signal_received_reason (mi->mi_uiout, siggnal); print_signal_received_reason (mi->cli_uiout, siggnal); } } /* Observer for the end_stepping_range notification. */ static void mi_on_end_stepping_range (void) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = find_mi_interp (); if (mi == NULL) continue; print_end_stepping_range_reason (mi->mi_uiout); print_end_stepping_range_reason (mi->cli_uiout); } } /* Observer for the signal_exited notification. */ static void mi_on_signal_exited (enum gdb_signal siggnal) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = find_mi_interp (); if (mi == NULL) continue; print_signal_exited_reason (mi->mi_uiout, siggnal); print_signal_exited_reason (mi->cli_uiout, siggnal); } } /* Observer for the exited notification. */ static void mi_on_exited (int exitstatus) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = find_mi_interp (); if (mi == NULL) continue; print_exited_reason (mi->mi_uiout, exitstatus); print_exited_reason (mi->cli_uiout, exitstatus); } } /* Observer for the no_history notification. */ static void mi_on_no_history (void) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = find_mi_interp (); if (mi == NULL) continue; print_no_history_reason (mi->mi_uiout); print_no_history_reason (mi->cli_uiout); } } static void mi_on_normal_stop_1 (struct bpstats *bs, int print_frame) { /* Since this can be called when CLI command is executing, using cli interpreter, be sure to use MI uiout for output, not the current one. */ struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ()); struct mi_interp *mi = (struct mi_interp *) top_level_interpreter_data (); if (print_frame) { struct thread_info *tp; int core; tp = inferior_thread (); if (tp->thread_fsm != NULL && thread_fsm_finished_p (tp->thread_fsm)) { enum async_reply_reason reason; reason = thread_fsm_async_reply_reason (tp->thread_fsm); ui_out_field_string (mi_uiout, "reason", async_reason_lookup (reason)); } print_stop_event (mi_uiout); /* Breakpoint hits should always be mirrored to the console. Deciding what to mirror to the console wrt to breakpoints and random stops gets messy real fast. E.g., say "s" trips on a breakpoint. We'd clearly want to mirror the event to the console in this case. But what about more complicated cases like "s&; thread n; s&", and one of those steps spawning a new thread, and that thread hitting a breakpoint? It's impossible in general to track whether the thread had any relation to the commands that had been executed. So we just simplify and always mirror breakpoints and random events to the console. OTOH, we should print the source line to the console when stepping or other similar commands, iff the step was started by a console command, but not if it was started with -exec-step or similar. */ if ((bpstat_what (tp->control.stop_bpstat).main_action == BPSTAT_WHAT_STOP_NOISY) || !(tp->thread_fsm != NULL && thread_fsm_finished_p (tp->thread_fsm)) || (tp->control.command_interp != NULL && tp->control.command_interp != top_level_interpreter ())) print_stop_event (mi->cli_uiout); tp = inferior_thread (); ui_out_field_int (mi_uiout, "thread-id", tp->global_num); if (non_stop) { struct cleanup *back_to = make_cleanup_ui_out_list_begin_end (mi_uiout, "stopped-threads"); ui_out_field_int (mi_uiout, NULL, tp->global_num); do_cleanups (back_to); } else ui_out_field_string (mi_uiout, "stopped-threads", "all"); core = target_core_of_thread (inferior_ptid); if (core != -1) ui_out_field_int (mi_uiout, "core", core); } fputs_unfiltered ("*stopped", mi->raw_stdout); mi_out_put (mi_uiout, mi->raw_stdout); mi_out_rewind (mi_uiout); mi_print_timing_maybe (mi->raw_stdout); fputs_unfiltered ("\n", mi->raw_stdout); gdb_flush (mi->raw_stdout); } static void mi_on_normal_stop (struct bpstats *bs, int print_frame) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { if (as_mi_interp (top_level_interpreter ()) == NULL) continue; mi_on_normal_stop_1 (bs, print_frame); } } static void mi_about_to_proceed (void) { /* Suppress output while calling an inferior function. */ if (!ptid_equal (inferior_ptid, null_ptid)) { struct thread_info *tp = inferior_thread (); if (tp->control.in_infcall) return; } mi_proceeded = 1; } /* When the element is non-zero, no MI notifications will be emitted in response to the corresponding observers. */ struct mi_suppress_notification mi_suppress_notification = { 0, 0, 0, }; /* Emit notification on changing a traceframe. */ static void mi_traceframe_changed (int tfnum, int tpnum) { struct switch_thru_all_uis state; if (mi_suppress_notification.traceframe) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); if (tfnum >= 0) fprintf_unfiltered (mi->event_channel, "traceframe-changed," "num=\"%d\",tracepoint=\"%d\"\n", tfnum, tpnum); else fprintf_unfiltered (mi->event_channel, "traceframe-changed,end"); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification on creating a trace state variable. */ static void mi_tsv_created (const struct trace_state_variable *tsv) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "tsv-created," "name=\"%s\",initial=\"%s\"\n", tsv->name, plongest (tsv->initial_value)); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification on deleting a trace state variable. */ static void mi_tsv_deleted (const struct trace_state_variable *tsv) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); if (tsv != NULL) fprintf_unfiltered (mi->event_channel, "tsv-deleted," "name=\"%s\"\n", tsv->name); else fprintf_unfiltered (mi->event_channel, "tsv-deleted\n"); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification on modifying a trace state variable. */ static void mi_tsv_modified (const struct trace_state_variable *tsv) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui_out *mi_uiout; struct cleanup *old_chain; if (mi == NULL) continue; mi_uiout = interp_ui_out (top_level_interpreter ()); old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "tsv-modified"); ui_out_redirect (mi_uiout, mi->event_channel); ui_out_field_string (mi_uiout, "name", tsv->name); ui_out_field_string (mi_uiout, "initial", plongest (tsv->initial_value)); if (tsv->value_known) ui_out_field_string (mi_uiout, "current", plongest (tsv->value)); ui_out_redirect (mi_uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification about a created breakpoint. */ static void mi_breakpoint_created (struct breakpoint *b) { struct switch_thru_all_uis state; if (mi_suppress_notification.breakpoint) return; if (b->number <= 0) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui_out *mi_uiout; struct cleanup *old_chain; if (mi == NULL) continue; mi_uiout = interp_ui_out (top_level_interpreter ()); old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "breakpoint-created"); /* We want the output from gdb_breakpoint_query to go to mi->event_channel. One approach would be to just call gdb_breakpoint_query, and then use mi_out_put to send the current content of mi_outout into mi->event_channel. However, that will break if anything is output to mi_uiout prior to calling the breakpoint_created notifications. So, we use ui_out_redirect. */ ui_out_redirect (mi_uiout, mi->event_channel); TRY { gdb_breakpoint_query (mi_uiout, b->number, NULL); } CATCH (e, RETURN_MASK_ERROR) { } END_CATCH ui_out_redirect (mi_uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification about deleted breakpoint. */ static void mi_breakpoint_deleted (struct breakpoint *b) { struct switch_thru_all_uis state; if (mi_suppress_notification.breakpoint) return; if (b->number <= 0) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "breakpoint-deleted,id=\"%d\"", b->number); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification about modified breakpoint. */ static void mi_breakpoint_modified (struct breakpoint *b) { struct switch_thru_all_uis state; if (mi_suppress_notification.breakpoint) return; if (b->number <= 0) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "breakpoint-modified"); /* We want the output from gdb_breakpoint_query to go to mi->event_channel. One approach would be to just call gdb_breakpoint_query, and then use mi_out_put to send the current content of mi_outout into mi->event_channel. However, that will break if anything is output to mi_uiout prior to calling the breakpoint_created notifications. So, we use ui_out_redirect. */ ui_out_redirect (mi->mi_uiout, mi->event_channel); TRY { gdb_breakpoint_query (mi->mi_uiout, b->number, NULL); } CATCH (e, RETURN_MASK_ERROR) { } END_CATCH ui_out_redirect (mi->mi_uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static int mi_output_running_pid (struct thread_info *info, void *arg) { ptid_t *ptid = (ptid_t *) arg; struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); if (mi == NULL) continue; if (ptid_get_pid (*ptid) == ptid_get_pid (info->ptid)) fprintf_unfiltered (mi->raw_stdout, "*running,thread-id=\"%d\"\n", info->global_num); } return 0; } static int mi_inferior_count (struct inferior *inf, void *arg) { if (inf->pid != 0) { int *count_p = (int *) arg; (*count_p)++; } return 0; } static void mi_on_resume_1 (struct mi_interp *mi, ptid_t ptid) { /* To cater for older frontends, emit ^running, but do it only once per each command. We do it here, since at this point we know that the target was successfully resumed, and in non-async mode, we won't return back to MI interpreter code until the target is done running, so delaying the output of "^running" until then will make it impossible for frontend to know what's going on. In future (MI3), we'll be outputting "^done" here. */ if (!running_result_record_printed && mi_proceeded) { fprintf_unfiltered (mi->raw_stdout, "%s^running\n", current_token ? current_token : ""); } if (ptid_get_pid (ptid) == -1) fprintf_unfiltered (mi->raw_stdout, "*running,thread-id=\"all\"\n"); else if (ptid_is_pid (ptid)) { int count = 0; /* Backwards compatibility. If there's only one inferior, output "all", otherwise, output each resumed thread individually. */ iterate_over_inferiors (mi_inferior_count, &count); if (count == 1) fprintf_unfiltered (mi->raw_stdout, "*running,thread-id=\"all\"\n"); else iterate_over_threads (mi_output_running_pid, &ptid); } else { struct thread_info *ti = find_thread_ptid (ptid); gdb_assert (ti); fprintf_unfiltered (mi->raw_stdout, "*running,thread-id=\"%d\"\n", ti->global_num); } if (!running_result_record_printed && mi_proceeded) { running_result_record_printed = 1; /* This is what gdb used to do historically -- printing prompt even if it cannot actually accept any input. This will be surely removed for MI3, and may be removed even earlier. */ if (current_ui->prompt_state == PROMPT_BLOCKED) fputs_unfiltered ("(gdb) \n", mi->raw_stdout); } gdb_flush (mi->raw_stdout); } static void mi_on_resume (ptid_t ptid) { struct thread_info *tp = NULL; struct switch_thru_all_uis state; if (ptid_equal (ptid, minus_one_ptid) || ptid_is_pid (ptid)) tp = inferior_thread (); else tp = find_thread_ptid (ptid); /* Suppress output while calling an inferior function. */ if (tp->control.in_infcall) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct cleanup *old_chain; if (mi == NULL) continue; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); mi_on_resume_1 (mi, ptid); do_cleanups (old_chain); } } static void mi_solib_loaded (struct so_list *solib) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui_out *uiout; struct cleanup *old_chain; if (mi == NULL) continue; uiout = interp_ui_out (top_level_interpreter ()); old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "library-loaded"); ui_out_redirect (uiout, mi->event_channel); ui_out_field_string (uiout, "id", solib->so_original_name); ui_out_field_string (uiout, "target-name", solib->so_original_name); ui_out_field_string (uiout, "host-name", solib->so_name); ui_out_field_int (uiout, "symbols-loaded", solib->symbols_loaded); if (!gdbarch_has_global_solist (target_gdbarch ())) { ui_out_field_fmt (uiout, "thread-group", "i%d", current_inferior ()->num); } ui_out_redirect (uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static void mi_solib_unloaded (struct so_list *solib) { struct switch_thru_all_uis state; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui_out *uiout; struct cleanup *old_chain; if (mi == NULL) continue; uiout = interp_ui_out (top_level_interpreter ()); old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "library-unloaded"); ui_out_redirect (uiout, mi->event_channel); ui_out_field_string (uiout, "id", solib->so_original_name); ui_out_field_string (uiout, "target-name", solib->so_original_name); ui_out_field_string (uiout, "host-name", solib->so_name); if (!gdbarch_has_global_solist (target_gdbarch ())) { ui_out_field_fmt (uiout, "thread-group", "i%d", current_inferior ()->num); } ui_out_redirect (uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification about the command parameter change. */ static void mi_command_param_changed (const char *param, const char *value) { struct switch_thru_all_uis state; if (mi_suppress_notification.cmd_param_changed) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui_out *mi_uiout; struct cleanup *old_chain; if (mi == NULL) continue; mi_uiout = interp_ui_out (top_level_interpreter ()); old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "cmd-param-changed"); ui_out_redirect (mi_uiout, mi->event_channel); ui_out_field_string (mi_uiout, "param", param); ui_out_field_string (mi_uiout, "value", value); ui_out_redirect (mi_uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } /* Emit notification about the target memory change. */ static void mi_memory_changed (struct inferior *inferior, CORE_ADDR memaddr, ssize_t len, const bfd_byte *myaddr) { struct switch_thru_all_uis state; if (mi_suppress_notification.memory) return; SWITCH_THRU_ALL_UIS (state) { struct mi_interp *mi = as_mi_interp (top_level_interpreter ()); struct ui_out *mi_uiout; struct obj_section *sec; struct cleanup *old_chain; if (mi == NULL) continue; mi_uiout = interp_ui_out (top_level_interpreter ()); old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "memory-changed"); ui_out_redirect (mi_uiout, mi->event_channel); ui_out_field_fmt (mi_uiout, "thread-group", "i%d", inferior->num); ui_out_field_core_addr (mi_uiout, "addr", target_gdbarch (), memaddr); ui_out_field_fmt (mi_uiout, "len", "%s", hex_string (len)); /* Append 'type=code' into notification if MEMADDR falls in the range of sections contain code. */ sec = find_pc_section (memaddr); if (sec != NULL && sec->objfile != NULL) { flagword flags = bfd_get_section_flags (sec->objfile->obfd, sec->the_bfd_section); if (flags & SEC_CODE) ui_out_field_string (mi_uiout, "type", "code"); } ui_out_redirect (mi_uiout, NULL); gdb_flush (mi->event_channel); do_cleanups (old_chain); } } static int report_initial_inferior (struct inferior *inf, void *closure) { /* This function is called from mi_interpreter_init, and since mi_inferior_added assumes that inferior is fully initialized and top_level_interpreter_data is set, we cannot call it here. */ struct mi_interp *mi = (struct mi_interp *) closure; struct cleanup *old_chain; old_chain = make_cleanup_restore_target_terminal (); target_terminal_ours_for_output (); fprintf_unfiltered (mi->event_channel, "thread-group-added,id=\"i%d\"", inf->num); gdb_flush (mi->event_channel); do_cleanups (old_chain); return 0; } static struct ui_out * mi_ui_out (struct interp *interp) { struct mi_interp *mi = (struct mi_interp *) interp_data (interp); return mi->mi_uiout; } /* Do MI-specific logging actions; save raw_stdout, and change all the consoles to use the supplied ui-file(s). */ static int mi_set_logging (struct interp *interp, int start_log, struct ui_file *out, struct ui_file *logfile) { struct mi_interp *mi = (struct mi_interp *) interp_data (interp); if (!mi) return 0; if (start_log) { /* The tee created already is based on gdb_stdout, which for MI is a console and so we end up in an infinite loop of console writing to ui_file writing to console etc. So discard the existing tee (it hasn't been used yet, and MI won't ever use it), and create one based on raw_stdout instead. */ if (logfile) { ui_file_delete (out); out = tee_file_new (mi->raw_stdout, 0, logfile, 0); } mi->saved_raw_stdout = mi->raw_stdout; mi->raw_stdout = out; } else { mi->raw_stdout = mi->saved_raw_stdout; mi->saved_raw_stdout = NULL; } mi_console_set_raw (mi->out, mi->raw_stdout); mi_console_set_raw (mi->err, mi->raw_stdout); mi_console_set_raw (mi->log, mi->raw_stdout); mi_console_set_raw (mi->targ, mi->raw_stdout); mi_console_set_raw (mi->event_channel, mi->raw_stdout); return 1; } /* The MI interpreter's vtable. */ static const struct interp_procs mi_interp_procs = { mi_interpreter_init, /* init_proc */ mi_interpreter_resume, /* resume_proc */ mi_interpreter_suspend, /* suspend_proc */ mi_interpreter_exec, /* exec_proc */ mi_ui_out, /* ui_out_proc */ mi_set_logging, /* set_logging_proc */ mi_interpreter_pre_command_loop /* pre_command_loop_proc */ }; /* Factory for MI interpreters. */ static struct interp * mi_interp_factory (const char *name) { return interp_new (name, &mi_interp_procs, NULL); } extern initialize_file_ftype _initialize_mi_interp; /* -Wmissing-prototypes */ void _initialize_mi_interp (void) { /* The various interpreter levels. */ interp_factory_register (INTERP_MI1, mi_interp_factory); interp_factory_register (INTERP_MI2, mi_interp_factory); interp_factory_register (INTERP_MI3, mi_interp_factory); interp_factory_register (INTERP_MI, mi_interp_factory); observer_attach_signal_received (mi_on_signal_received); observer_attach_end_stepping_range (mi_on_end_stepping_range); observer_attach_signal_exited (mi_on_signal_exited); observer_attach_exited (mi_on_exited); observer_attach_no_history (mi_on_no_history); observer_attach_new_thread (mi_new_thread); observer_attach_thread_exit (mi_thread_exit); observer_attach_inferior_added (mi_inferior_added); observer_attach_inferior_appeared (mi_inferior_appeared); observer_attach_inferior_exit (mi_inferior_exit); observer_attach_inferior_removed (mi_inferior_removed); observer_attach_record_changed (mi_record_changed); observer_attach_normal_stop (mi_on_normal_stop); observer_attach_target_resumed (mi_on_resume); observer_attach_solib_loaded (mi_solib_loaded); observer_attach_solib_unloaded (mi_solib_unloaded); observer_attach_about_to_proceed (mi_about_to_proceed); observer_attach_traceframe_changed (mi_traceframe_changed); observer_attach_tsv_created (mi_tsv_created); observer_attach_tsv_deleted (mi_tsv_deleted); observer_attach_tsv_modified (mi_tsv_modified); observer_attach_breakpoint_created (mi_breakpoint_created); observer_attach_breakpoint_deleted (mi_breakpoint_deleted); observer_attach_breakpoint_modified (mi_breakpoint_modified); observer_attach_command_param_changed (mi_command_param_changed); observer_attach_memory_changed (mi_memory_changed); observer_attach_sync_execution_done (mi_on_sync_execution_done); }