gdbserver:
=g port file [args]
listen on 'port' debugging 'file' using gdbserver=g! port file [args]
same as above, but debug protocol messages (like gdbserver —remote-debug)
=g!
=g port file [args]
listen on 'port' debugging 'file' using gdbserver=g! port file [args]
same as above, but debug protocol messages (like gdbserver —remote-debug)=g!