Run the simulation with GDB for FDPIC:
  
   ./output/host/usr/bin/bfin-buildroot-linux-uclibc-run --env operating --model bf512 output/images/vmlinux
  
  Run the simulation with GDB for FLAT:
  
   ./output/host/usr/bin/bfin-buildroot-uclinux-uclibc-run --env operating --model bf512 output/images/vmlinux
  
  The login prompt will appear in the terminal that started GDB.
  
  Tested with GDB 7.9