569 lines
15 KiB
C
569 lines
15 KiB
C
/* TUI layout window management.
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Copyright (C) 1998-2020 Free Software Foundation, Inc.
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Contributed by Hewlett-Packard Company.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "arch-utils.h"
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#include "command.h"
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#include "symtab.h"
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#include "frame.h"
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#include "source.h"
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#include <ctype.h>
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#include "tui/tui.h"
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#include "tui/tui-command.h"
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#include "tui/tui-data.h"
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#include "tui/tui-wingeneral.h"
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#include "tui/tui-stack.h"
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#include "tui/tui-regs.h"
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#include "tui/tui-win.h"
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#include "tui/tui-winsource.h"
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#include "tui/tui-disasm.h"
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#include "tui/tui-layout.h"
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#include "tui/tui-source.h"
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#include "gdb_curses.h"
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static void show_layout (enum tui_layout_type);
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static void show_source_or_disasm_and_command (enum tui_layout_type);
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static void show_source_command (void);
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static void show_disasm_command (void);
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static void show_source_disasm_command (void);
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static void show_data (enum tui_layout_type);
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static enum tui_layout_type next_layout (void);
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static enum tui_layout_type prev_layout (void);
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static void tui_layout_command (const char *, int);
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static void extract_display_start_addr (struct gdbarch **, CORE_ADDR *);
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static enum tui_layout_type current_layout = UNDEFINED_LAYOUT;
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/* Accessor for the current layout. */
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enum tui_layout_type
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tui_current_layout (void)
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{
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return current_layout;
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}
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/* Show the screen layout defined. */
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static void
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show_layout (enum tui_layout_type layout)
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{
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enum tui_layout_type cur_layout = tui_current_layout ();
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if (layout != cur_layout)
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{
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tui_make_all_invisible ();
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switch (layout)
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{
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case SRC_DATA_COMMAND:
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case DISASSEM_DATA_COMMAND:
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show_data (layout);
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break;
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/* Now show the new layout. */
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case SRC_COMMAND:
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show_source_command ();
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break;
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case DISASSEM_COMMAND:
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show_disasm_command ();
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break;
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case SRC_DISASSEM_COMMAND:
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show_source_disasm_command ();
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break;
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default:
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break;
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}
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current_layout = layout;
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tui_delete_invisible_windows ();
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}
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}
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/* Function to set the layout to SRC_COMMAND, DISASSEM_COMMAND,
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SRC_DISASSEM_COMMAND, SRC_DATA_COMMAND, or DISASSEM_DATA_COMMAND. */
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void
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tui_set_layout (enum tui_layout_type layout_type)
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{
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gdb_assert (layout_type != UNDEFINED_LAYOUT);
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enum tui_layout_type cur_layout = tui_current_layout ();
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struct gdbarch *gdbarch;
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CORE_ADDR addr;
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struct tui_win_info *win_with_focus = tui_win_with_focus ();
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extract_display_start_addr (&gdbarch, &addr);
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enum tui_layout_type new_layout = layout_type;
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if (new_layout != cur_layout)
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{
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show_layout (new_layout);
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/* Now determine where focus should be. */
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if (win_with_focus != TUI_CMD_WIN)
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{
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switch (new_layout)
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{
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case SRC_COMMAND:
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tui_set_win_focus_to (TUI_SRC_WIN);
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break;
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case DISASSEM_COMMAND:
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/* The previous layout was not showing code.
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This can happen if there is no source
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available:
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1. if the source file is in another dir OR
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2. if target was compiled without -g
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We still want to show the assembly though! */
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tui_get_begin_asm_address (&gdbarch, &addr);
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tui_set_win_focus_to (TUI_DISASM_WIN);
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break;
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case SRC_DISASSEM_COMMAND:
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/* The previous layout was not showing code.
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This can happen if there is no source
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available:
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1. if the source file is in another dir OR
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2. if target was compiled without -g
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We still want to show the assembly though! */
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tui_get_begin_asm_address (&gdbarch, &addr);
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if (win_with_focus == TUI_SRC_WIN)
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tui_set_win_focus_to (TUI_SRC_WIN);
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else
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tui_set_win_focus_to (TUI_DISASM_WIN);
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break;
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case SRC_DATA_COMMAND:
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if (win_with_focus != TUI_DATA_WIN)
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tui_set_win_focus_to (TUI_SRC_WIN);
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else
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tui_set_win_focus_to (TUI_DATA_WIN);
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break;
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case DISASSEM_DATA_COMMAND:
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/* The previous layout was not showing code.
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This can happen if there is no source
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available:
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1. if the source file is in another dir OR
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2. if target was compiled without -g
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We still want to show the assembly though! */
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tui_get_begin_asm_address (&gdbarch, &addr);
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if (win_with_focus != TUI_DATA_WIN)
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tui_set_win_focus_to (TUI_DISASM_WIN);
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else
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tui_set_win_focus_to (TUI_DATA_WIN);
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break;
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default:
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break;
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}
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}
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/*
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* Now update the window content.
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*/
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tui_update_source_windows_with_addr (gdbarch, addr);
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if (new_layout == SRC_DATA_COMMAND
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|| new_layout == DISASSEM_DATA_COMMAND)
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TUI_DATA_WIN->show_registers (TUI_DATA_WIN->get_current_group ());
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}
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}
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/* Add the specified window to the layout in a logical way. This
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means setting up the most logical layout given the window to be
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added. */
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void
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tui_add_win_to_layout (enum tui_win_type type)
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{
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enum tui_layout_type cur_layout = tui_current_layout ();
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switch (type)
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{
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case SRC_WIN:
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if (cur_layout != SRC_COMMAND
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&& cur_layout != SRC_DISASSEM_COMMAND
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&& cur_layout != SRC_DATA_COMMAND)
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{
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if (cur_layout == DISASSEM_DATA_COMMAND)
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show_layout (SRC_DATA_COMMAND);
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else
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show_layout (SRC_COMMAND);
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}
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break;
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case DISASSEM_WIN:
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if (cur_layout != DISASSEM_COMMAND
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&& cur_layout != SRC_DISASSEM_COMMAND
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&& cur_layout != DISASSEM_DATA_COMMAND)
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{
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if (cur_layout == SRC_DATA_COMMAND)
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show_layout (DISASSEM_DATA_COMMAND);
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else
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show_layout (DISASSEM_COMMAND);
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}
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break;
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case DATA_WIN:
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if (cur_layout != SRC_DATA_COMMAND
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&& cur_layout != DISASSEM_DATA_COMMAND)
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{
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if (cur_layout == DISASSEM_COMMAND)
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show_layout (DISASSEM_DATA_COMMAND);
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else
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show_layout (SRC_DATA_COMMAND);
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}
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break;
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default:
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break;
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}
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}
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/* Complete possible layout names. TEXT is the complete text entered so
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far, WORD is the word currently being completed. */
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static void
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layout_completer (struct cmd_list_element *ignore,
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completion_tracker &tracker,
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const char *text, const char *word)
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{
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static const char *layout_names [] =
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{ "src", "asm", "split", "regs", "next", "prev", NULL };
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complete_on_enum (tracker, layout_names, text, word);
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}
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/* Function to set the layout to SRC, ASM, SPLIT, NEXT, PREV, DATA, or
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REGS. */
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static void
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tui_layout_command (const char *layout_name, int from_tty)
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{
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enum tui_layout_type new_layout = UNDEFINED_LAYOUT;
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enum tui_layout_type cur_layout = tui_current_layout ();
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if (layout_name == NULL || *layout_name == '\0')
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error (_("Usage: layout prev | next | LAYOUT-NAME"));
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/* First check for ambiguous input. */
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if (strcmp (layout_name, "s") == 0)
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error (_("Ambiguous command input."));
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if (subset_compare (layout_name, "src"))
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new_layout = SRC_COMMAND;
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else if (subset_compare (layout_name, "asm"))
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new_layout = DISASSEM_COMMAND;
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else if (subset_compare (layout_name, "split"))
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new_layout = SRC_DISASSEM_COMMAND;
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else if (subset_compare (layout_name, "regs"))
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{
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if (cur_layout == SRC_COMMAND
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|| cur_layout == SRC_DATA_COMMAND)
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new_layout = SRC_DATA_COMMAND;
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else
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new_layout = DISASSEM_DATA_COMMAND;
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}
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else if (subset_compare (layout_name, "next"))
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new_layout = next_layout ();
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else if (subset_compare (layout_name, "prev"))
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new_layout = prev_layout ();
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else
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error (_("Unrecognized layout: %s"), layout_name);
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/* Make sure the curses mode is enabled. */
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tui_enable ();
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tui_set_layout (new_layout);
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}
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static void
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extract_display_start_addr (struct gdbarch **gdbarch_p, CORE_ADDR *addr_p)
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{
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enum tui_layout_type cur_layout = tui_current_layout ();
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struct gdbarch *gdbarch = get_current_arch ();
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CORE_ADDR addr;
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CORE_ADDR pc;
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struct symtab_and_line cursal = get_current_source_symtab_and_line ();
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switch (cur_layout)
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{
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case SRC_COMMAND:
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case SRC_DATA_COMMAND:
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gdbarch = TUI_SRC_WIN->gdbarch;
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find_line_pc (cursal.symtab,
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TUI_SRC_WIN->start_line_or_addr.u.line_no,
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&pc);
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addr = pc;
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break;
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case DISASSEM_COMMAND:
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case SRC_DISASSEM_COMMAND:
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case DISASSEM_DATA_COMMAND:
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gdbarch = TUI_DISASM_WIN->gdbarch;
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addr = TUI_DISASM_WIN->start_line_or_addr.u.addr;
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break;
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default:
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addr = 0;
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break;
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}
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*gdbarch_p = gdbarch;
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*addr_p = addr;
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}
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/* Answer the previous layout to cycle to. */
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static enum tui_layout_type
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next_layout (void)
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{
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int new_layout;
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new_layout = tui_current_layout ();
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if (new_layout == UNDEFINED_LAYOUT)
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new_layout = SRC_COMMAND;
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else
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{
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new_layout++;
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if (new_layout == UNDEFINED_LAYOUT)
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new_layout = SRC_COMMAND;
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}
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return (enum tui_layout_type) new_layout;
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}
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/* Answer the next layout to cycle to. */
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static enum tui_layout_type
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prev_layout (void)
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{
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int new_layout;
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new_layout = tui_current_layout ();
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if (new_layout == SRC_COMMAND)
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new_layout = DISASSEM_DATA_COMMAND;
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else
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{
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new_layout--;
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if (new_layout == UNDEFINED_LAYOUT)
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new_layout = DISASSEM_DATA_COMMAND;
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}
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return (enum tui_layout_type) new_layout;
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}
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/* Show the Source/Command layout. */
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static void
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show_source_command (void)
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{
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show_source_or_disasm_and_command (SRC_COMMAND);
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}
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/* Show the Dissassem/Command layout. */
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static void
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show_disasm_command (void)
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{
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show_source_or_disasm_and_command (DISASSEM_COMMAND);
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}
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/* Show the Source/Disassem/Command layout. */
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static void
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show_source_disasm_command (void)
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{
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int cmd_height, src_height, asm_height;
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if (TUI_CMD_WIN != NULL)
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cmd_height = TUI_CMD_WIN->height;
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else
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cmd_height = tui_term_height () / 3;
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src_height = (tui_term_height () - cmd_height) / 2;
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asm_height = tui_term_height () - (src_height + cmd_height);
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if (TUI_SRC_WIN == NULL)
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tui_win_list[SRC_WIN] = new tui_source_window ();
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TUI_SRC_WIN->resize (src_height,
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tui_term_width (),
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0,
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0);
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struct tui_locator_window *locator = tui_locator_win_info_ptr ();
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gdb_assert (locator != nullptr);
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if (TUI_DISASM_WIN == NULL)
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tui_win_list[DISASSEM_WIN] = new tui_disasm_window ();
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TUI_DISASM_WIN->resize (asm_height,
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tui_term_width (),
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0,
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src_height - 1);
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locator->resize (1, tui_term_width (),
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0, (src_height + asm_height) - 1);
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if (TUI_CMD_WIN == NULL)
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tui_win_list[CMD_WIN] = new tui_cmd_window ();
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TUI_CMD_WIN->resize (cmd_height,
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tui_term_width (),
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0,
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tui_term_height () - cmd_height);
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||
}
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/* Show the Source/Data/Command or the Dissassembly/Data/Command
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layout. */
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static void
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show_data (enum tui_layout_type new_layout)
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||
{
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||
int total_height = (tui_term_height () - TUI_CMD_WIN->height);
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||
int src_height, data_height;
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||
enum tui_win_type win_type;
|
||
|
||
struct tui_locator_window *locator = tui_locator_win_info_ptr ();
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gdb_assert (locator != nullptr);
|
||
|
||
data_height = total_height / 2;
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||
src_height = total_height - data_height;
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||
if (tui_win_list[DATA_WIN] == nullptr)
|
||
tui_win_list[DATA_WIN] = new tui_data_window ();
|
||
tui_win_list[DATA_WIN]->resize (data_height, tui_term_width (), 0, 0);
|
||
|
||
if (new_layout == SRC_DATA_COMMAND)
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||
win_type = SRC_WIN;
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else
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win_type = DISASSEM_WIN;
|
||
|
||
if (tui_win_list[win_type] == NULL)
|
||
{
|
||
if (win_type == SRC_WIN)
|
||
tui_win_list[win_type] = new tui_source_window ();
|
||
else
|
||
tui_win_list[win_type] = new tui_disasm_window ();
|
||
}
|
||
|
||
tui_win_list[win_type]->resize (src_height,
|
||
tui_term_width (),
|
||
0,
|
||
data_height - 1);
|
||
locator->resize (1, tui_term_width (),
|
||
0, total_height - 1);
|
||
TUI_CMD_WIN->resize (TUI_CMD_WIN->height, tui_term_width (),
|
||
0, total_height);
|
||
}
|
||
|
||
void
|
||
tui_gen_win_info::resize (int height_, int width_,
|
||
int origin_x_, int origin_y_)
|
||
{
|
||
if (width == width_ && height == height_
|
||
&& origin.x == origin_x_ && origin.y == origin_y_
|
||
&& handle != nullptr)
|
||
return;
|
||
|
||
width = width_;
|
||
height = height_;
|
||
if (height > 1)
|
||
viewport_height = height - 2;
|
||
else
|
||
viewport_height = 1;
|
||
origin.x = origin_x_;
|
||
origin.y = origin_y_;
|
||
|
||
if (handle != nullptr)
|
||
{
|
||
#ifdef HAVE_WRESIZE
|
||
wresize (handle.get (), height, width);
|
||
mvwin (handle.get (), origin.y, origin.x);
|
||
wmove (handle.get (), 0, 0);
|
||
#else
|
||
handle.reset (nullptr);
|
||
#endif
|
||
}
|
||
|
||
if (handle == nullptr)
|
||
make_window ();
|
||
|
||
rerender ();
|
||
}
|
||
|
||
/* Show the Source/Command or the Disassem layout. */
|
||
static void
|
||
show_source_or_disasm_and_command (enum tui_layout_type layout_type)
|
||
{
|
||
struct tui_source_window_base *win_info;
|
||
int src_height, cmd_height;
|
||
struct tui_locator_window *locator = tui_locator_win_info_ptr ();
|
||
gdb_assert (locator != nullptr);
|
||
|
||
if (TUI_CMD_WIN != NULL)
|
||
cmd_height = TUI_CMD_WIN->height;
|
||
else
|
||
cmd_height = tui_term_height () / 3;
|
||
src_height = tui_term_height () - cmd_height;
|
||
|
||
if (layout_type == SRC_COMMAND)
|
||
{
|
||
if (tui_win_list[SRC_WIN] == nullptr)
|
||
tui_win_list[SRC_WIN] = new tui_source_window ();
|
||
win_info = TUI_SRC_WIN;
|
||
}
|
||
else
|
||
{
|
||
if (tui_win_list[DISASSEM_WIN] == nullptr)
|
||
tui_win_list[DISASSEM_WIN] = new tui_disasm_window ();
|
||
win_info = TUI_DISASM_WIN;
|
||
}
|
||
|
||
locator->resize (1, tui_term_width (),
|
||
0, src_height - 1);
|
||
win_info->resize (src_height - 1,
|
||
tui_term_width (),
|
||
0,
|
||
0);
|
||
|
||
if (TUI_CMD_WIN == NULL)
|
||
tui_win_list[CMD_WIN] = new tui_cmd_window ();
|
||
TUI_CMD_WIN->resize (cmd_height,
|
||
tui_term_width (),
|
||
0,
|
||
src_height);
|
||
}
|
||
|
||
|
||
|
||
/* Function to initialize gdb commands, for tui window layout
|
||
manipulation. */
|
||
|
||
void
|
||
_initialize_tui_layout (void)
|
||
{
|
||
struct cmd_list_element *cmd;
|
||
|
||
cmd = add_com ("layout", class_tui, tui_layout_command, _("\
|
||
Change the layout of windows.\n\
|
||
Usage: layout prev | next | LAYOUT-NAME\n\
|
||
Layout names are:\n\
|
||
src : Displays source and command windows.\n\
|
||
asm : Displays disassembly and command windows.\n\
|
||
split : Displays source, disassembly and command windows.\n\
|
||
regs : Displays register window. If existing layout\n\
|
||
is source/command or assembly/command, the \n\
|
||
register window is displayed. If the\n\
|
||
source/assembly/command (split) is displayed, \n\
|
||
the register window is displayed with \n\
|
||
the window that has current logical focus."));
|
||
set_cmd_completer (cmd, layout_completer);
|
||
}
|