Improve GDB's usability with PPP Debugger
Plush Puppy Parallel Debugger will provide a full environment to your debugging session.
Layout of PPP Debugger with all 3 superior docks, data inspector em thread control on right side and code area at the middle
PPP layout with a C code displayed on code area
Links
Download the PPP Debugger
(Note: This tool operates over the GDB, so your system must have the GDB installed)