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25.4 TUI-specific Commands

The TUI has specific commands to control the text windows. These commands are always available, even when gdb is not in the TUI mode. When gdb is in the standard mode, most of these commands will automatically switch to the TUI mode.

Note that if gdb's stdout is not connected to a terminal, or gdb has been started with the machine interface interpreter (see The gdb/mi Interface), most of these commands will fail with an error, because it would not be possible or desirable to enable curses window management.

tui enable
Activate TUI mode. The last active TUI window layout will be used if TUI mode has prevsiouly been used in the current debugging session, otherwise a default layout is used.
tui disable
Disable TUI mode, returning to the console interpreter.
info win
List and give the size of all displayed windows.
layout next
Display the next layout.
layout prev
Display the previous layout.
layout src
Display the source window only.
layout asm
Display the assembly window only.
layout split
Display the source and assembly window.
layout regs
Display the register window together with the source or assembly window.
focus next
Make the next window active for scrolling.
focus prev
Make the previous window active for scrolling.
focus src
Make the source window active for scrolling.
focus asm
Make the assembly window active for scrolling.
focus regs
Make the register window active for scrolling.
focus cmd
Make the command window active for scrolling.
refresh
Refresh the screen. This is similar to typing C-L.
tui reg float
Show the floating point registers in the register window.
tui reg general
Show the general registers in the register window.
tui reg next
Show the next register group. The list of register groups as well as their order is target specific. The predefined register groups are the following: general, float, system, vector, all, save, restore.
tui reg system
Show the system registers in the register window.
update
Update the source window and the current execution point.
winheight name +count
winheight name -count
Change the height of the window name by count lines. Positive counts increase the height, while negative counts decrease it. The name parameter can be one of src (the source window), cmd (the command window), asm (the disassembly window), or regs (the register display window).
tabset nchars
Set the width of tab stops to be nchars characters. This setting affects the display of TAB characters in the source and assembly windows.