debugging

I can download and run my apps on the FriendlyARM board and in the
framebuffer environment.  However, so far I have not found any tools which
enable me to set breakpoints or step through my code in either environment.
 Has anyone had any luck debugging?  I'm running the default Qt version
that comes with the mini2440 board.  My PC is running Ubuntu Linux.

Thanks in advance.

James

In the qmake tutorial it mentions that you can add a 

CONFIG += qt debug

to your .pro file.  This implies that you can debug your application.  I am
quite surprised that I am the only one trying to set break points and/or
view parameters during runtime.

Any takers?