GDB now takes 4 minutes to start up with remote gdbserver target

[Frank Ch. Eigler]

Hi -

> > GDB could grow a qCRC type packet for the remote file server, so as to let
> > it compare the remote files to the local ones.  (Or even qRSYNC :-)
> 
> build-id is there for that.

Yes, esp. if it easily extracted from the remote-target filesystem.

- FChE