* gdb.texinfo (TUI): New chapter, document the TUI.
(Mode Options): Document the -tui option.
This commit is contained in:
Stephane Carrez
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@ -1,3 +1,8 @@
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2001-07-24 Stephane Carrez <Stephane.Carrez@worldnet.fr>
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* gdb.texinfo (TUI): New chapter, document the TUI.
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(Mode Options): Document the -tui option.
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2001-07-23 Mark Kettenis <kettenis@gnu.org>
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* gdbint.texinfo (Host Definition): Remove description of
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@ -137,6 +137,7 @@ Copyright (C) 1988-2001 Free Software Foundation, Inc.
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* Configurations:: Configuration-specific information
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* Controlling GDB:: Controlling @value{GDBN}
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* Sequences:: Canned sequences of commands
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* TUI:: @value{GDBN} Text User Interface
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* Emacs:: Using @value{GDBN} under @sc{gnu} Emacs
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* Annotations:: @value{GDBN}'s annotation interface.
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* GDB/MI:: @value{GDBN}'s Machine Interface.
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@ -1026,13 +1027,14 @@ Run using @var{device} for your program's standard input and output.
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@c FIXME: kingdon thinks there is more to -tty. Investigate.
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@c resolve the situation of these eventually
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@c @item -tui
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@c @cindex @code{--tui}
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@c Use a Terminal User Interface. For information, use your Web browser to
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@c read the file @file{TUI.html}, which is usually installed in the
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@c directory @code{/opt/langtools/wdb/doc} on HP-UX systems. Do not use
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@c this option if you run @value{GDBN} from Emacs (see @pxref{Emacs, ,Using
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@c @value{GDBN} under @sc{gnu} Emacs}).
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@item -tui
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@cindex @code{--tui}
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Activate the Terminal User Interface when starting.
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The Terminal User Interface manages several text windows on the terminal,
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showing source, assembly, registers and @value{GDBN} command outputs
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(@pxref{TUI, ,@value{GDBN} Text User Interface}).
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Do not use this option if you run @value{GDBN} from Emacs
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(@pxref{Emacs, ,Using @value{GDBN} under @sc{gnu} Emacs}).
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@c @item -xdb
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@c @cindex @code{--xdb}
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@ -13115,6 +13117,290 @@ string are the simple ones that consist of backslash followed by a
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letter.
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@end table
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@node TUI
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@chapter @value{GDBN} Text User Interface
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@cindex TUI
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@menu
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* TUI Overview:: TUI overview
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* TUI Keys:: TUI key bindings
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* TUI Commands:: TUI specific commands
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* TUI Configuration:: TUI configuration variables
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@end menu
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The @value{GDBN} Text User Interface, TUI in short,
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is a terminal interface which uses the @code{curses} library
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to show the source file, the assembly output, the program registers
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and @value{GDBN} commands in separate text windows.
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The TUI is available only when @value{GDBN} is configured
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with the @code{--enable-tui} configure option (@pxref{Configure Options}).
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@node TUI Overview
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@section TUI overview
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The TUI has two display modes that can be switched while
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@value{GDBN} runs:
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@itemize @bullet
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@item
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A curses (or TUI) mode in which it displays several text
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windows on the terminal.
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@item
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A standard mode which corresponds to the @value{GDBN} configured without
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the TUI.
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@end itemize
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In the TUI mode, @value{GDBN} can display several text window
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on the terminal:
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@table @emph
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@item command
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This window is the @value{GDBN} command window with the @value{GDBN}
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prompt and the @value{GDBN} outputs. The @value{GDBN} input is still
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managed using readline but through the TUI. The @emph{command}
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window is always visible.
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@item source
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The source window shows the source file of the program. The current
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line as well as active breakpoints are displayed in this window.
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The current program position is shown with the @samp{>} marker and
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active breakpoints are shown with @samp{*} markers.
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@item assembly
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The assembly window shows the disassembly output of the program.
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@item register
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This window shows the processor registers. It detects when
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a register is changed and when this is the case, registers that have
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changed are highlighted.
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@end table
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The source, assembly and register windows are attached to the thread
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and the frame position. They are updated when the current thread
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changes, when the frame changes or when the program counter changes.
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These three windows are arranged by the TUI according to several
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layouts. The layout defines which of these three windows are visible.
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The following layouts are available:
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@itemize @bullet
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@item
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source
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@item
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assembly
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@item
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source and assembly
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@item
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source and registers
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@item
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assembly and registers
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@end itemize
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@node TUI Keys
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@section TUI Key Bindings
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@cindex TUI key bindings
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The TUI installs several key bindings in the readline keymaps
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(@pxref{Command Line Editing}).
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They allow to leave or enter in the TUI mode or they operate
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directly on the TUI layout and windows. The following key bindings
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are installed for both TUI mode and the @value{GDBN} standard mode.
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@table @kbd
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@kindex C-x C-a
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@item C-x C-a
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@kindex C-x a
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@itemx C-x a
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@kindex C-x A
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@itemx C-x A
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Enter or leave the TUI mode. When the TUI mode is left,
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the curses window management is left and @value{GDBN} operates using
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its standard mode writing on the terminal directly. When the TUI
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mode is entered, the control is given back to the curses windows.
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The screen is then refreshed.
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@kindex C-x 1
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@item C-x 1
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Use a TUI layout with only one window. The layout will
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either be @samp{source} or @samp{assembly}. When the TUI mode
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is not active, it will switch to the TUI mode.
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Think of this key binding as the Emacs @kbd{C-x 1} binding.
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@kindex C-x 2
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@item C-x 2
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Use a TUI layout with at least two windows. When the current
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layout shows already two windows, a next layout with two windows is used.
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When a new layout is chosen, one window will always be common to the
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previous layout and the new one.
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Think of it as the Emacs @kbd{C-x 2} binding.
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@end table
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The following key bindings are handled only by the TUI mode:
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@table @key
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@kindex PgUp
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@item PgUp
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Scroll the active window one page up.
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@kindex PgDn
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@item PgDn
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Scroll the active window one page down.
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@kindex Up
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@item Up
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Scroll the active window one line up.
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@kindex Down
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@item Down
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Scroll the active window one line down.
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@kindex Left
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@item Left
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Scroll the active window one column left.
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@kindex Right
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@item Right
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Scroll the active window one column right.
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@kindex C-L
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@item C-L
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Refresh the screen.
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@end table
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In the TUI mode, the arrow keys are used by the active window
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for scrolling. This means they are not available for readline. It is
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necessary to use other readline key bindings such as @key{C-p}, @key{C-n},
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@key{C-b} and @key{C-f}.
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@node TUI Commands
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@section TUI specific commands
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@cindex TUI commands
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The TUI has specific commands to control the text windows.
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These commands are always available, that is they do not depend on
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the current terminal mode in which @value{GDBN} runs. When @value{GDBN}
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is in the standard mode, using these commands will automatically switch
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in the TUI mode.
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@table @code
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@item layout next
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@kindex layout next
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Display the next layout.
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@item layout prev
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@kindex layout prev
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Display the previous layout.
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@item layout src
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@kindex layout src
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Display the source window only.
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@item layout asm
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@kindex layout asm
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Display the assembly window only.
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@item layout split
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@kindex layout split
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Display the source and assembly window.
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@item layout regs
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@kindex layout regs
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Display the register window together with the source or assembly window.
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@item focus next | prev | src | asm | regs | split
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@kindex focus
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Set the focus to the named window.
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This command allows to change the active window so that scrolling keys
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can be affected to another window.
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@item refresh
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@kindex refresh
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Refresh the screen. This is similar to using @key{C-L} key.
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@item update
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@kindex update
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Update the source window and the current execution point.
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@item winheight @var{name} +@var{count}
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@itemx winheight @var{name} -@var{count}
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@kindex winheight
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Change the height of the window @var{name} by @var{count}
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lines. Positive counts increase the height, while negative counts
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decrease it.
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@end table
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@node TUI Configuration
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@section TUI configuration variables
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@cindex TUI configuration variables
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The TUI has several configuration variables that control the
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appearance of windows on the terminal.
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@table @code
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@item set tui-border-kind @var{kind}
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@kindex set tui-border-kind
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Select the border appearance for the source, assembly and register windows.
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The possible values are the following:
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@table @code
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@item space
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Use a space character to draw the border.
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@item ascii
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Use ascii characters + - and | to draw the border.
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@item acs
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Use the Alternate Character Set to draw the border. The border is
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drawn using character line graphics if the terminal supports them.
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@end table
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@item set tui-active-border-mode @var{mode}
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@kindex set tui-active-border-mode
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Select the attributes to display the border of the active window.
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The possible values are @code{normal}, @code{standout}, @code{reverse},
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@code{half}, @code{half-standout}, @code{bold} and @code{bold-standout}.
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@item set tui-border-mode @var{mode}
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@kindex set tui-border-mode
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Select the attributes to display the border of other windows.
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The @var{mode} can be one of the following:
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@table @code
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@item normal
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Use normal attributes to display the border.
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@item standout
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Use standout mode.
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@item reverse
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Use reverse video mode.
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@item half
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Use half bright mode.
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@item half-standout
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Use half bright and standout mode.
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@item bold
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Use extra bright or bold mode.
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@item bold-standout
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Use extra bright or bold and standout mode.
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@end table
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@end table
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@node Emacs
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@chapter Using @value{GDBN} under @sc{gnu} Emacs
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