| /* TUI Interpreter definitions for GDB, the GNU debugger. |
| |
| Copyright (C) 2003-2020 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 <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| #include "cli/cli-interp.h" |
| #include "interps.h" |
| #include "top.h" |
| #include "event-top.h" |
| #include "event-loop.h" |
| #include "ui-out.h" |
| #include "cli-out.h" |
| #include "tui/tui-data.h" |
| #include "tui/tui-win.h" |
| #include "tui/tui.h" |
| #include "tui/tui-io.h" |
| #include "infrun.h" |
| #include "observable.h" |
| #include "gdbthread.h" |
| #include "inferior.h" |
| #include "main.h" |
| |
| /* Set to 1 when the TUI mode must be activated when we first start |
| gdb. */ |
| static int tui_start_enabled = 0; |
| |
| class tui_interp final : public cli_interp_base |
| { |
| public: |
| explicit tui_interp (const char *name) |
| : cli_interp_base (name) |
| {} |
| |
| void init (bool top_level) override; |
| void resume () override; |
| void suspend () override; |
| gdb_exception exec (const char *command_str) override; |
| ui_out *interp_ui_out () override; |
| }; |
| |
| /* Returns the INTERP if the INTERP is a TUI, and returns NULL |
| otherwise. */ |
| |
| static tui_interp * |
| as_tui_interp (struct interp *interp) |
| { |
| return dynamic_cast<tui_interp *> (interp); |
| } |
| |
| /* Cleanup the tui before exiting. */ |
| |
| static void |
| tui_exit (void) |
| { |
| /* Disable the tui. Curses mode is left leaving the screen in a |
| clean state (see endwin()). */ |
| tui_disable (); |
| } |
| |
| /* Observers for several run control events. If the interpreter is |
| quiet (i.e., another interpreter is being run with |
| interpreter-exec), print nothing. */ |
| |
| /* Observer for the normal_stop notification. */ |
| |
| static void |
| tui_on_normal_stop (struct bpstats *bs, int print_frame) |
| { |
| if (!print_frame) |
| return; |
| |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *interp = top_level_interpreter (); |
| struct interp *tui = as_tui_interp (interp); |
| struct thread_info *thread; |
| |
| if (tui == NULL) |
| continue; |
| |
| thread = inferior_thread (); |
| if (should_print_stop_to_console (interp, thread)) |
| print_stop_event (tui->interp_ui_out ()); |
| } |
| } |
| |
| /* Observer for the signal_received notification. */ |
| |
| static void |
| tui_on_signal_received (enum gdb_signal siggnal) |
| { |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| continue; |
| |
| print_signal_received_reason (tui->interp_ui_out (), siggnal); |
| } |
| } |
| |
| /* Observer for the end_stepping_range notification. */ |
| |
| static void |
| tui_on_end_stepping_range (void) |
| { |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| continue; |
| |
| print_end_stepping_range_reason (tui->interp_ui_out ()); |
| } |
| } |
| |
| /* Observer for the signal_exited notification. */ |
| |
| static void |
| tui_on_signal_exited (enum gdb_signal siggnal) |
| { |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| continue; |
| |
| print_signal_exited_reason (tui->interp_ui_out (), siggnal); |
| } |
| } |
| |
| /* Observer for the exited notification. */ |
| |
| static void |
| tui_on_exited (int exitstatus) |
| { |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| continue; |
| |
| print_exited_reason (tui->interp_ui_out (), exitstatus); |
| } |
| } |
| |
| /* Observer for the no_history notification. */ |
| |
| static void |
| tui_on_no_history (void) |
| { |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| continue; |
| |
| print_no_history_reason (tui->interp_ui_out ()); |
| } |
| } |
| |
| /* Observer for the sync_execution_done notification. */ |
| |
| static void |
| tui_on_sync_execution_done (void) |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| return; |
| |
| display_gdb_prompt (NULL); |
| } |
| |
| /* Observer for the command_error notification. */ |
| |
| static void |
| tui_on_command_error (void) |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| return; |
| |
| display_gdb_prompt (NULL); |
| } |
| |
| /* Observer for the user_selected_context_changed notification. */ |
| |
| static void |
| tui_on_user_selected_context_changed (user_selected_what selection) |
| { |
| /* This event is suppressed. */ |
| if (cli_suppress_notification.user_selected_context) |
| return; |
| |
| thread_info *tp = inferior_ptid != null_ptid ? inferior_thread () : NULL; |
| |
| SWITCH_THRU_ALL_UIS () |
| { |
| struct interp *tui = as_tui_interp (top_level_interpreter ()); |
| |
| if (tui == NULL) |
| continue; |
| |
| if (selection & USER_SELECTED_INFERIOR) |
| print_selected_inferior (tui->interp_ui_out ()); |
| |
| if (tp != NULL |
| && ((selection & (USER_SELECTED_THREAD | USER_SELECTED_FRAME)))) |
| print_selected_thread_frame (tui->interp_ui_out (), selection); |
| |
| } |
| } |
| |
| /* These implement the TUI interpreter. */ |
| |
| void |
| tui_interp::init (bool top_level) |
| { |
| /* Install exit handler to leave the screen in a good shape. */ |
| atexit (tui_exit); |
| |
| tui_initialize_io (); |
| tui_initialize_win (); |
| if (ui_file_isatty (gdb_stdout)) |
| tui_initialize_readline (); |
| } |
| |
| void |
| tui_interp::resume () |
| { |
| struct ui *ui = current_ui; |
| struct ui_file *stream; |
| |
| /* gdb_setup_readline will change gdb_stdout. If the TUI was |
| previously writing to gdb_stdout, then set it to the new |
| gdb_stdout afterwards. */ |
| |
| stream = tui_old_uiout->set_stream (gdb_stdout); |
| if (stream != gdb_stdout) |
| { |
| tui_old_uiout->set_stream (stream); |
| stream = NULL; |
| } |
| |
| gdb_setup_readline (1); |
| |
| ui->input_handler = command_line_handler; |
| |
| if (stream != NULL) |
| tui_old_uiout->set_stream (gdb_stdout); |
| |
| if (tui_start_enabled) |
| tui_enable (); |
| } |
| |
| void |
| tui_interp::suspend () |
| { |
| tui_start_enabled = tui_active; |
| tui_disable (); |
| } |
| |
| ui_out * |
| tui_interp::interp_ui_out () |
| { |
| if (tui_active) |
| return tui_out; |
| else |
| return tui_old_uiout; |
| } |
| |
| gdb_exception |
| tui_interp::exec (const char *command_str) |
| { |
| internal_error (__FILE__, __LINE__, _("tui_exec called")); |
| } |
| |
| |
| /* Factory for TUI interpreters. */ |
| |
| static struct interp * |
| tui_interp_factory (const char *name) |
| { |
| return new tui_interp (name); |
| } |
| |
| void |
| _initialize_tui_interp (void) |
| { |
| interp_factory_register (INTERP_TUI, tui_interp_factory); |
| |
| if (interpreter_p && strcmp (interpreter_p, INTERP_TUI) == 0) |
| tui_start_enabled = 1; |
| |
| if (interpreter_p && strcmp (interpreter_p, INTERP_CONSOLE) == 0) |
| { |
| xfree (interpreter_p); |
| interpreter_p = xstrdup (INTERP_TUI); |
| } |
| |
| /* If changing this, remember to update cli-interp.c as well. */ |
| gdb::observers::normal_stop.attach (tui_on_normal_stop); |
| gdb::observers::signal_received.attach (tui_on_signal_received); |
| gdb::observers::end_stepping_range.attach (tui_on_end_stepping_range); |
| gdb::observers::signal_exited.attach (tui_on_signal_exited); |
| gdb::observers::exited.attach (tui_on_exited); |
| gdb::observers::no_history.attach (tui_on_no_history); |
| gdb::observers::sync_execution_done.attach (tui_on_sync_execution_done); |
| gdb::observers::command_error.attach (tui_on_command_error); |
| gdb::observers::user_selected_context_changed.attach |
| (tui_on_user_selected_context_changed); |
| } |