QEMU supports gdb out of the box. Unfortunately gdb has some problems with the transition to 64 bit, but fixing it is relatively easy (you need to build gdb fro

QEMU supports gdb out of the box. Unfortunately gdb has some problems with the transition to 64 bit, but fixing it is relatively easy (you need to build gdb from source though). I just wrote a guide that should make it straightforward: http://os.phil-opp.com/set-up-gdb.html http://os.phil-opp.com/set-up-gdb.html