Re: Trying to remote debug question

[Daniel Jacobowitz <drow@false.org>]

On Mon, Jun 19, 2006 at 01:28:28PM -0400, Fahd Abidi wrote:
> Hello,
> 
> I am trying to launch a remote debug into my target, I have a mips based
> board but with only one serial port and No ethernet. I use the serial
> port as the target console for my 2.6 kernel.
> 
> I am wondering if I can launch the GDBServer to use /dev/ttyS0 even
> though my Linux console is also tied to this com port? It is the only
> comport available on the target so I have to try and use it for both my
> console and remote debugging. When I try to launch a GDB session to this
> port it says "inappropriate IOCTL for this device".

There used to be a multiplexer, called kdmx, that allowed you to use
one port for both console and debug.  But I haven't seen a copy of it
in a few years now.

The inappropriate ioctl message can probably be ignored.  If you tell
gdbserver to write its stdout/stderr to /dev/null and to open a
connection to /dev/ttyS0, it should work.

-- 
Daniel Jacobowitz
CodeSourcery