connect to gdb stub for rtems rt os

FWIW, I resolved this issue using the netcat program (nc on the command line) which has a nifty feature of creating a tcp server that attaches to the stdin and stdout of nios2-terminal. Once the following Bourne shell script is running (passing command line argument --instance 1 on my system that has two jtag uarts) on the local host I can attach gdb with "target remote localhost:5107". I used the open-bsd version of netcat.

# !/bin/sh

cleanup ()

{

kill %nc

rm netcatout

rm netcatin

exit

}

trap cleanup int quit abrt segv bus ill pipe

mkfifo netcatout

mkfifo netcatin

nc -l 5107 -k > netcatout < netcatin &

while [ 1 ]

do

nios2-terminal $@ --quiet --flush < netcatout > netcatin

echo restarting nios2-terminal

done

cleanup ()