On Fri, Jul 6, 2012 at 11:42 AM, Gustavo da Silva
[off-list ref] wrote:

And another question:

Where are the file "unistd_32.h"?! I'm not founding it in the
"arch/x86/include/asm/" directory!!

I think you can answer this for yourself:

  $ sudo updatedb && locate unistd_32.h

or

  $ cd kernel-tree && find . -name "unistd_32.h"

Mine is here (for x86):

./arch/x86/include/generated/asm/unistd_32.h

Welcome to kernel-land :-)
Ezequiel.