Cross debugging

[Legolas]

Hello all,
I'm trying to configure Lazarus for Nintendo DS debugging. The compiler produces 2 files, miapp.nds and myapp.elf. The first one (muapp.nds) should be executed in the emulator, that needs to be connected to gdb via tcp, passing the command line parameter --arm9gdb=<PORT_NUM>. The second one (myapp.elf) should be passed to gdb, that should listen to PORT_NUM, of course.
Playing around with "Run parameters..." on Lazarus I can start the nds file in the emulator, but no way to understand how to use gdb.

There is a way to directly accomplish what I need?

Thanks in advance