gdb混合c和nasm调试记录

留个底，继续debug！

qTStatus: Target returns error code 'NN'.
root@dev-linux:/home/devx/KernelEaterPrj/boot# gdb system
GNU gdb (Ubuntu/Linaro 7.3-0ubuntu2) 7.3-2011.08
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /home/devx/KernelEaterPrj/boot/system...done.
(gdb) target remote localhost:1234
Remote debugging using localhost:1234
warning: unrecognized item "ENN" in "qSupported" response
0x0000fff0 in ?? ()
qTStatus: Target returns error code 'NN'.
(gdb)