Скажите, а можно ли работать под XP, для работы с uclinux?
То тут
http://nioswiki.jot.com/WikiHome/OperatingSystems/µClinux написано что нужно работать в linux
Why develop on Linux when you have the IDE on Windows?
The IDE on Windows is not good for uClinux kernel/apps development,
The IDE's compiler defaults to newlib, while we prefer to use uClibc in uClinux. Software building and porting will be much easier with the compiler created from buildroot.
The tools run much faster, and with less trouble on Linux. After using Linux, you will feel the IDE on Windows moves like turtles.
If you want to develop Nios II uClinux, you should work on Linux and learn Linux. You can learn a lot when working on Linux, and the "Linux know how" is the key to success on Nios II uClinux.