GDB - Display output of target application in a separate window

Question

I'm using GDB to debug some of my C applications. What I currently do is load the target application, set a breakpoint on line 30 and run it.

I would like to make GDB display the output of my own application in a new terminal window while I'm still able to control the breakpoint handling via the GDB terminal window, but I couldn't seem to find a proper switch. Is there any way making GDB display my program's output in its own window?

Answer 1

For people wondering how to use the GDB tty command here is a short description...

• Open a new console window. We will redirect output from the program running under GDB here. This is our output window.

• Run the tty command in the output window. This will show the name of the tty being used by the underlying console.

  $ tty
/dev/pts/4

• Open another console window and start GDB here. Let us call this the GDB window.

• Now run the tty command in GDB using the tty file name obtained above and then start the debugging process.

  (gdb) tty /dev/pts/4
(gdb) run

Now you should be able to see the program output separately in the output window.

Note: The GDB set new-console on command does not work on Linux! It is meant to be run on windows only. Use the tty method described above on Linux.

Answer 2

You can use set new-console on to accomplish this as shown here.