Debugging with gdb tui mode

reference

• https://sourceware.org/gdb/onlinedocs/gdb/TUI.html
  
  

TUI

Text User Interface(TUI) mode of GDB a terminal interface showing source code/assembly/register information/gdb commands in adevidec text window. It provides more convenient debugging environment to users. TUI mode can be used in the following ways.

 $ gdb -tui

Or after running GDB, execute the tui command. The following are main tui commands.

• tui enable
  • Activates TUI mode.
• tui disable
  • Disables TUI mode.
• info win
  • Shows the currently displayed window and its size..
• layout <name>
  • Shows the window corresponding to <name>.(ex. layout src, layout next)
    • next
      • Shows next layout.
    • prev
      • Shows previous layout.
    • src
      • Shows source code window and command window.
    • asm
      • Shows assembly code window and command window.
    • split
      • Shows source code window, assembly code window and command window.
    • regs
      • Shows register window.
• focus <name>
  • Sets the window corresponding to <name> have focus.(ex. focus regs, layout regs)
    • next
    • prev
    • src
    • asm
    • regs
    • cmd
• refresh
  • Refreshes current screen. Same with <Ctrl + L> .
• tui reg group
  • Shows by register group.
    • next
      • Shows next register group.
    • prev
      • Shows previous register group.
    • general
      • Shows general register groups.
    • float
      • Shows floating point register group.
    • system
      • Shows system register group.
    • vector
      • Shows vector register groupt.
    • all
      • Shows all registers.
• update
  • Updates source code window and current execution point.
• winheight <name> +count
  • Increases the window’s height corresponding to <name>
• winheight <name> -count
  • Decrease the window’s height corresponding to <name>
• tabset nchars
  • set the width of tab stops

• screenshot 1(source & assembly)
• screenshot 2(registers & sources)