GDB patch for debugging Hitachi advanced rom monitor

[Jack]

> 1) In case you want to use gdb on a target equipped with AMON, you need to
> make the monitor on the target aware of gdb. In this case you need a
> gdb-stub for your target. I know about several free SH gdb-stubs being
> available on the net, but I don't know if there is any for AMON. However,
> adapting existing gdb-stubs for specific monitors should not be too
> difficult.

      Where can I get these stubs? please tell me!
      (I tried many search engine, but no result.)

      thank you! ^_^