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/* GDB hooks for TUI.
Copyright (C) 2001-2015 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 "symtab.h"
#include "inferior.h"
#include "command.h"
#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
#include "target.h"
#include "gdbcore.h"
#include "event-loop.h"
#include "event-top.h"
#include "frame.h"
#include "breakpoint.h"
#include "ui-out.h"
#include "top.h"
#include "observer.h"
#include <unistd.h>
#include <fcntl.h>
#include "tui/tui.h"
#include "tui/tui-hooks.h"
#include "tui/tui-data.h"
#include "tui/tui-layout.h"
#include "tui/tui-io.h"
#include "tui/tui-regs.h"
#include "tui/tui-win.h"
#include "tui/tui-stack.h"
#include "tui/tui-windata.h"
#include "tui/tui-winsource.h"
#include "gdb_curses.h"
/* This redefines CTRL if it is not already defined, so it must come
after terminal state releated include files like <term.h> and
"gdb_curses.h". */
#include "readline/readline.h"
int tui_target_has_run = 0;
static void
tui_new_objfile_hook (struct objfile* objfile)
{
if (tui_active)
tui_display_main ();
}
/* Prevent recursion of deprecated_register_changed_hook(). */
static int tui_refreshing_registers = 0;
static void
tui_register_changed_hook (int regno)
{
struct frame_info *fi;
fi = get_selected_frame (NULL);
if (tui_refreshing_registers == 0)
{
tui_refreshing_registers = 1;
tui_check_data_values (fi);
tui_refreshing_registers = 0;
}
}
/* Breakpoint creation hook.
Update the screen to show the new breakpoint. */
static void
tui_event_create_breakpoint (struct breakpoint *b)
{
tui_update_all_breakpoint_info ();
}
/* Breakpoint deletion hook.
Refresh the screen to update the breakpoint marks. */
static void
tui_event_delete_breakpoint (struct breakpoint *b)
{
tui_update_all_breakpoint_info ();
}
static void
tui_event_modify_breakpoint (struct breakpoint *b)
{
tui_update_all_breakpoint_info ();
}
/* Called when a command is about to proceed the inferior. */
static void
tui_about_to_proceed (void)
{
/* Leave tui mode (optional). */
#if 0
if (tui_active)
{
target_terminal_ours ();
endwin ();
target_terminal_inferior ();
}
#endif
tui_target_has_run = 1;
}
/* The selected frame has changed. This is happens after a target
stop or when the user explicitly changes the frame
(up/down/thread/...). */
static void
tui_selected_frame_level_changed_hook (int level)
{
struct frame_info *fi;
CORE_ADDR pc;
/* Negative level means that the selected frame was cleared. */
if (level < 0)
return;
fi = get_selected_frame (NULL);
/* Ensure that symbols for this frame are read in. Also, determine
the source language of this frame, and switch to it if
desired. */
if (get_frame_pc_if_available (fi, &pc))
{
struct symtab *s;
s = find_pc_line_symtab (pc);
/* elz: This if here fixes the problem with the pc not being
displayed in the tui asm layout, with no debug symbols. The
value of s would be 0 here, and select_source_symtab would
abort the command by calling the 'error' function. */
if (s)
select_source_symtab (s);
}
/* Display the frame position (even if there is no symbols or the PC
is not known). */
tui_show_frame_info (fi);
/* Refresh the register window if it's visible. */
if (tui_is_window_visible (DATA_WIN))
{
tui_refreshing_registers = 1;
tui_check_data_values (fi);
tui_refreshing_registers = 0;
}
}
/* Called from print_frame_info to list the line we stopped in. */
static void
tui_print_frame_info_listing_hook (struct symtab *s,
int line,
int stopline,
int noerror)
{
select_source_symtab (s);
tui_show_frame_info (get_selected_frame (NULL));
}
/* Perform all necessary cleanups regarding our module's inferior data
that is required after the inferior INF just exited. */
static void
tui_inferior_exit (struct inferior *inf)
{
/* Leave the SingleKey mode to make sure the gdb prompt is visible. */
tui_set_key_mode (TUI_COMMAND_MODE);
tui_show_frame_info (0);
tui_display_main ();
}
/* Observers created when installing TUI hooks. */
static struct observer *tui_bp_created_observer;
static struct observer *tui_bp_deleted_observer;
static struct observer *tui_bp_modified_observer;
static struct observer *tui_inferior_exit_observer;
static struct observer *tui_about_to_proceed_observer;
/* Install the TUI specific hooks. */
void
tui_install_hooks (void)
{
deprecated_selected_frame_level_changed_hook
= tui_selected_frame_level_changed_hook;
deprecated_print_frame_info_listing_hook
= tui_print_frame_info_listing_hook;
/* Install the event hooks. */
tui_bp_created_observer
= observer_attach_breakpoint_created (tui_event_create_breakpoint);
tui_bp_deleted_observer
= observer_attach_breakpoint_deleted (tui_event_delete_breakpoint);
tui_bp_modified_observer
= observer_attach_breakpoint_modified (tui_event_modify_breakpoint);
tui_inferior_exit_observer
= observer_attach_inferior_exit (tui_inferior_exit);
tui_about_to_proceed_observer
= observer_attach_about_to_proceed (tui_about_to_proceed);
deprecated_register_changed_hook = tui_register_changed_hook;
}
/* Remove the TUI specific hooks. */
void
tui_remove_hooks (void)
{
deprecated_selected_frame_level_changed_hook = 0;
deprecated_print_frame_info_listing_hook = 0;
deprecated_query_hook = 0;
deprecated_register_changed_hook = 0;
/* Remove our observers. */
observer_detach_breakpoint_created (tui_bp_created_observer);
tui_bp_created_observer = NULL;
observer_detach_breakpoint_deleted (tui_bp_deleted_observer);
tui_bp_deleted_observer = NULL;
observer_detach_breakpoint_modified (tui_bp_modified_observer);
tui_bp_modified_observer = NULL;
observer_detach_inferior_exit (tui_inferior_exit_observer);
tui_inferior_exit_observer = NULL;
observer_detach_about_to_proceed (tui_about_to_proceed_observer);
tui_about_to_proceed_observer = NULL;
}
void _initialize_tui_hooks (void);
void
_initialize_tui_hooks (void)
{
/* Install the permanent hooks. */
observer_attach_new_objfile (tui_new_objfile_hook);
}
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