[OT] Kernel extentions

[Dima Brodsky]

Hi,

I am trying to build a kernel extention that contains a VFS
layer.  I am using arla as an example and using a nullfs example
that has been put into a kernel extention in project builder.
Now I want to do everything from makefile and so I am following
arla's example but I cannot get the resulting extention to load.

It tells me that the extention contains no module code and refuses
to load.  What are the key characteristics of a kext that enables
it to load.  What does:  

        echo _xfs_mod > symb.tmp
>>	: -c symb.tmp tmp.o
	rm -f symb.tmp
	mv -f tmp.o xfs_mod.o

do to the resulting .o file??  Why is that necessary.

thanks
ttyl
Dima

-- 
Dima Brodsky                                   dima at cs.ubc.ca
                                               http://www.cs.ubc.ca/~dima
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