From: Stephane Carrez Date: Tue, 24 Jul 2001 18:48:15 +0000 (+0000) Subject: * gdb.texinfo (TUI): New chapter, document the TUI. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c4555f8227284c748c8a5e4ce04bbcda102e50f4;p=binutils-gdb.git * gdb.texinfo (TUI): New chapter, document the TUI. (Mode Options): Document the -tui option. --- diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index e0c40c8bb3b..77f01b400de 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,8 @@ +2001-07-24 Stephane Carrez + + * gdb.texinfo (TUI): New chapter, document the TUI. + (Mode Options): Document the -tui option. + 2001-07-23 Mark Kettenis * gdbint.texinfo (Host Definition): Remove description of diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index fc592c89eab..a4173acd285 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -137,6 +137,7 @@ Copyright (C) 1988-2001 Free Software Foundation, Inc. * Configurations:: Configuration-specific information * Controlling GDB:: Controlling @value{GDBN} * Sequences:: Canned sequences of commands +* TUI:: @value{GDBN} Text User Interface * Emacs:: Using @value{GDBN} under @sc{gnu} Emacs * Annotations:: @value{GDBN}'s annotation interface. * GDB/MI:: @value{GDBN}'s Machine Interface. @@ -1026,13 +1027,14 @@ Run using @var{device} for your program's standard input and output. @c FIXME: kingdon thinks there is more to -tty. Investigate. @c resolve the situation of these eventually -@c @item -tui -@c @cindex @code{--tui} -@c Use a Terminal User Interface. For information, use your Web browser to -@c read the file @file{TUI.html}, which is usually installed in the -@c directory @code{/opt/langtools/wdb/doc} on HP-UX systems. Do not use -@c this option if you run @value{GDBN} from Emacs (see @pxref{Emacs, ,Using -@c @value{GDBN} under @sc{gnu} Emacs}). +@item -tui +@cindex @code{--tui} +Activate the Terminal User Interface when starting. +The Terminal User Interface manages several text windows on the terminal, +showing source, assembly, registers and @value{GDBN} command outputs +(@pxref{TUI, ,@value{GDBN} Text User Interface}). +Do not use this option if you run @value{GDBN} from Emacs +(@pxref{Emacs, ,Using @value{GDBN} under @sc{gnu} Emacs}). @c @item -xdb @c @cindex @code{--xdb} @@ -13115,6 +13117,290 @@ string are the simple ones that consist of backslash followed by a letter. @end table +@node TUI +@chapter @value{GDBN} Text User Interface +@cindex TUI + +@menu +* TUI Overview:: TUI overview +* TUI Keys:: TUI key bindings +* TUI Commands:: TUI specific commands +* TUI Configuration:: TUI configuration variables +@end menu + +The @value{GDBN} Text User Interface, TUI in short, +is a terminal interface which uses the @code{curses} library +to show the source file, the assembly output, the program registers +and @value{GDBN} commands in separate text windows. +The TUI is available only when @value{GDBN} is configured +with the @code{--enable-tui} configure option (@pxref{Configure Options}). + +@node TUI Overview +@section TUI overview + +The TUI has two display modes that can be switched while +@value{GDBN} runs: + +@itemize @bullet +@item +A curses (or TUI) mode in which it displays several text +windows on the terminal. + +@item +A standard mode which corresponds to the @value{GDBN} configured without +the TUI. +@end itemize + +In the TUI mode, @value{GDBN} can display several text window +on the terminal: + +@table @emph +@item command +This window is the @value{GDBN} command window with the @value{GDBN} +prompt and the @value{GDBN} outputs. The @value{GDBN} input is still +managed using readline but through the TUI. The @emph{command} +window is always visible. + +@item source +The source window shows the source file of the program. The current +line as well as active breakpoints are displayed in this window. +The current program position is shown with the @samp{>} marker and +active breakpoints are shown with @samp{*} markers. + +@item assembly +The assembly window shows the disassembly output of the program. + +@item register +This window shows the processor registers. It detects when +a register is changed and when this is the case, registers that have +changed are highlighted. + +@end table + +The source, assembly and register windows are attached to the thread +and the frame position. They are updated when the current thread +changes, when the frame changes or when the program counter changes. +These three windows are arranged by the TUI according to several +layouts. The layout defines which of these three windows are visible. +The following layouts are available: + +@itemize @bullet +@item +source + +@item +assembly + +@item +source and assembly + +@item +source and registers + +@item +assembly and registers + +@end itemize + +@node TUI Keys +@section TUI Key Bindings +@cindex TUI key bindings + +The TUI installs several key bindings in the readline keymaps +(@pxref{Command Line Editing}). +They allow to leave or enter in the TUI mode or they operate +directly on the TUI layout and windows. The following key bindings +are installed for both TUI mode and the @value{GDBN} standard mode. + +@table @kbd +@kindex C-x C-a +@item C-x C-a +@kindex C-x a +@itemx C-x a +@kindex C-x A +@itemx C-x A +Enter or leave the TUI mode. When the TUI mode is left, +the curses window management is left and @value{GDBN} operates using +its standard mode writing on the terminal directly. When the TUI +mode is entered, the control is given back to the curses windows. +The screen is then refreshed. + +@kindex C-x 1 +@item C-x 1 +Use a TUI layout with only one window. The layout will +either be @samp{source} or @samp{assembly}. When the TUI mode +is not active, it will switch to the TUI mode. + +Think of this key binding as the Emacs @kbd{C-x 1} binding. + +@kindex C-x 2 +@item C-x 2 +Use a TUI layout with at least two windows. When the current +layout shows already two windows, a next layout with two windows is used. +When a new layout is chosen, one window will always be common to the +previous layout and the new one. + +Think of it as the Emacs @kbd{C-x 2} binding. + +@end table + +The following key bindings are handled only by the TUI mode: + +@table @key +@kindex PgUp +@item PgUp +Scroll the active window one page up. + +@kindex PgDn +@item PgDn +Scroll the active window one page down. + +@kindex Up +@item Up +Scroll the active window one line up. + +@kindex Down +@item Down +Scroll the active window one line down. + +@kindex Left +@item Left +Scroll the active window one column left. + +@kindex Right +@item Right +Scroll the active window one column right. + +@kindex C-L +@item C-L +Refresh the screen. + +@end table + +In the TUI mode, the arrow keys are used by the active window +for scrolling. This means they are not available for readline. It is +necessary to use other readline key bindings such as @key{C-p}, @key{C-n}, +@key{C-b} and @key{C-f}. + +@node TUI Commands +@section TUI specific commands +@cindex TUI commands + +The TUI has specific commands to control the text windows. +These commands are always available, that is they do not depend on +the current terminal mode in which @value{GDBN} runs. When @value{GDBN} +is in the standard mode, using these commands will automatically switch +in the TUI mode. + +@table @code +@item layout next +@kindex layout next +Display the next layout. + +@item layout prev +@kindex layout prev +Display the previous layout. + +@item layout src +@kindex layout src +Display the source window only. + +@item layout asm +@kindex layout asm +Display the assembly window only. + +@item layout split +@kindex layout split +Display the source and assembly window. + +@item layout regs +@kindex layout regs +Display the register window together with the source or assembly window. + +@item focus next | prev | src | asm | regs | split +@kindex focus +Set the focus to the named window. +This command allows to change the active window so that scrolling keys +can be affected to another window. + +@item refresh +@kindex refresh +Refresh the screen. This is similar to using @key{C-L} key. + +@item update +@kindex update +Update the source window and the current execution point. + +@item winheight @var{name} +@var{count} +@itemx winheight @var{name} -@var{count} +@kindex winheight +Change the height of the window @var{name} by @var{count} +lines. Positive counts increase the height, while negative counts +decrease it. + +@end table + +@node TUI Configuration +@section TUI configuration variables +@cindex TUI configuration variables + +The TUI has several configuration variables that control the +appearance of windows on the terminal. + +@table @code +@item set tui-border-kind @var{kind} +@kindex set tui-border-kind +Select the border appearance for the source, assembly and register windows. +The possible values are the following: +@table @code +@item space +Use a space character to draw the border. + +@item ascii +Use ascii characters + - and | to draw the border. + +@item acs +Use the Alternate Character Set to draw the border. The border is +drawn using character line graphics if the terminal supports them. + +@end table + +@item set tui-active-border-mode @var{mode} +@kindex set tui-active-border-mode +Select the attributes to display the border of the active window. +The possible values are @code{normal}, @code{standout}, @code{reverse}, +@code{half}, @code{half-standout}, @code{bold} and @code{bold-standout}. + +@item set tui-border-mode @var{mode} +@kindex set tui-border-mode +Select the attributes to display the border of other windows. +The @var{mode} can be one of the following: +@table @code +@item normal +Use normal attributes to display the border. + +@item standout +Use standout mode. + +@item reverse +Use reverse video mode. + +@item half +Use half bright mode. + +@item half-standout +Use half bright and standout mode. + +@item bold +Use extra bright or bold mode. + +@item bold-standout +Use extra bright or bold and standout mode. + +@end table + +@end table + @node Emacs @chapter Using @value{GDBN} under @sc{gnu} Emacs