gede is a graphical debugger, a front-end for good ole uncle gdb. gede doesn't need a specialized gdb version.
Unfortunately its a qt app, nevertheless it fits well in a gtk desktop environment.
Its author Johan Henriksson is a smart and nice guy always open for bug reports and recommendations.
Its easy to bebuild out of the sources in fedora.
gede is extremely easy to use. 'Nuff said, check it out
Gede : Start