Re: Remote target behind console server

[Quality Quorum <qqi@theworld.com>]

On Tue, 2 Jul 2002, KONG, Gangfeng wrote:

> At 12:28 AM 6/29/2002 -0400, Daniel Jacobowitz wrote:
> >On Fri, Jun 28, 2002 at 06:45:17PM -0700, KONG, Gangfeng wrote:
> > >
> > > >
> > > >>
> > > >> You mean an ``annex[tm]''?  Yes.  You'll likely need to tweak things so
> > > >> that  the terminal server automatically connects the GDB session through
> > > >> to the serial port.  There isn't an easy way, from GDB, to send terminal
> > > >> server commands.
> > > >
> > > >You have to configure your terminal server appropriately (either enable
> > > >'raw' mode on the terminal server or disable 'X' command on the stub/gdb)
> > > >and this is basically it, people do it all the time.
> > > >
> > > >If you are going to do 'load' over this connection big terminal server
> > > >buffers may screw it up.
> > > Thanks for your message,
> > >
> > > Basically I need to use 'telnet' to the ip-addr of my terminal server to
> > > access
> > > the serial port of my target box. I may reconfigure the terminal
> > server, but
> > > how can I let gdb to setup an telnet connection to the terminal server and
> > > then take this connection as media for its serial access to the stub on
> > > the target?
> >
> >Have you tried using 'target remote ip-addr:port' to the terminal
> >server directly?
>
>
> Hi,
>
> I start the gdb stub on the target by:
>          gdbstart -s 38400 -t /dev/ttyS0
> and start the gdb on the development box by:
>          gdb vmlinux
>          gdb)
>          gdb) set remotebaud 38400
>          gdb) target remote my-server-ipaddr:port  #note, the port I put
> here is the serial port# on the server,
>                                                  #not L4 port, correct?

No, you have to use telnet port here.


> Now I only get error message:
>          ignoring packet error, continuing....
>
> If I replace the console server by a direct serial cable for the above 2
> boxes,
> and use 'target remote /dev/ttyS0' instead. Everything works fine. So I know
> except the serial connection, the rest configs are correct.
>
> Could anybody correct me where I did wrongly ?
>
> Thanks
> GF
>
>
Thanks,

Aleksey