/* TUI Interpreter definitions for GDB, the GNU debugger.
- Copyright (C) 2003, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2003-2018 Free Software Foundation, Inc.
This file is part of GDB.
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 "tui/tui-win.h"
#include "tui/tui.h"
#include "tui/tui-io.h"
-#include "exceptions.h"
+#include "infrun.h"
+#include "observable.h"
+#include "gdbthread.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)
+{
+ if (strcmp (interp_name (interp), INTERP_TUI) == 0)
+ return (tui_interp *) interp;
+ return NULL;
+}
+
/* Cleanup the tui before exiting. */
static void
tui_disable ();
}
-/* True if TUI is the top-level interpreter. */
-static int tui_is_toplevel = 0;
+/* Observers for several run control events. If the interpreter is
+ quiet (i.e., another interpreter is being run with
+ interpreter-exec), print nothing. */
-/* These implement the TUI interpreter. */
+/* 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 ());
-static void *
-tui_init (struct interp *self, int top_level)
+ 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)
{
- tui_is_toplevel = top_level;
+ struct thread_info *tp;
+
+ /* This event is suppressed. */
+ if (cli_suppress_notification.user_selected_context)
+ return;
+
+ tp = find_thread_ptid (inferior_ptid);
+
+ 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_win ();
if (ui_file_isatty (gdb_stdout))
tui_initialize_readline ();
-
- return NULL;
}
-/* True if enabling the TUI is allowed. Example, if the top level
- interpreter is MI, enabling curses will certainly lose. */
-
-int
-tui_allowed_p (void)
-{
- /* Only if TUI is the top level interpreter. Also don't try to
- setup curses (and print funny control characters) if we're not
- outputting to a terminal. */
- return tui_is_toplevel && ui_file_isatty (gdb_stdout);
-}
-
-static int
-tui_resume (void *data)
+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 = cli_out_set_stream (tui_old_uiout, gdb_stdout);
+ stream = tui_old_uiout->set_stream (gdb_stdout);
if (stream != gdb_stdout)
{
- cli_out_set_stream (tui_old_uiout, stream);
+ tui_old_uiout->set_stream (stream);
stream = NULL;
}
- gdb_setup_readline ();
+ gdb_setup_readline (1);
+
+ ui->input_handler = command_line_handler;
if (stream != NULL)
- cli_out_set_stream (tui_old_uiout, gdb_stdout);
+ tui_old_uiout->set_stream (gdb_stdout);
if (tui_start_enabled)
tui_enable ();
- return 1;
}
-static int
-tui_suspend (void *data)
+void
+tui_interp::suspend ()
{
tui_start_enabled = tui_active;
tui_disable ();
- return 1;
-}
-
-/* Display the prompt if we are silent. */
-
-static int
-tui_display_prompt_p (void *data)
-{
- if (interp_quiet_p (NULL))
- return 0;
- else
- return 1;
}
-static struct ui_out *
-tui_ui_out (struct interp *self)
+ui_out *
+tui_interp::interp_ui_out ()
{
if (tui_active)
return tui_out;
return tui_old_uiout;
}
-static struct gdb_exception
-tui_exec (void *data, const char *command_str)
+gdb_exception
+tui_interp::exec (const char *command_str)
{
internal_error (__FILE__, __LINE__, _("tui_exec called"));
}
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_tui_interp;
+
+/* Factory for TUI interpreters. */
+
+static struct interp *
+tui_interp_factory (const char *name)
+{
+ return new tui_interp (name);
+}
void
_initialize_tui_interp (void)
{
- static const struct interp_procs procs = {
- tui_init,
- tui_resume,
- tui_suspend,
- tui_exec,
- tui_display_prompt_p,
- tui_ui_out,
- };
- struct interp *tui_interp;
-
- /* Create a default uiout builder for the TUI. */
- tui_interp = interp_new (INTERP_TUI, &procs);
- interp_add (tui_interp);
+ interp_factory_register (INTERP_TUI, tui_interp_factory);
+
if (interpreter_p && strcmp (interpreter_p, INTERP_TUI) == 0)
tui_start_enabled = 1;
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);
}
projects / deliverable / binutils-gdb.git / blobdiff