copy the root file system to the host system, I used /opt/target/root. One needs at least /lib and /user directtories from the target
Add the following in the options in tools/options/debugger GDB(tab) Additional Startup commands

set sysroot /opt/target/root/
handle SIGILL pass nostop noprint

apply and try again
Note GDB should also moan on start-up, add the above and it might disappear