Re: sysutils/xenkernel33

["Christoph Egger" <Christoph_Egger%gmx.de@localhost>]

> > >> /* Intel P4 currently has largest cache line (L2 line size is 128
> > bytes). */
> > >> #define CONFIG_X86_L1_CACHE_SHIFT 7
> > >
> > > I see the same build error with xen-unstable, too.
> > > Why is gcc suddenly that picky ?
> 
> What has been changed in gcc recently?
> 
> > > 
> > is there a easy fix to get xentools33 to build?
> 
> You mean xenkernel33, right?
> 
> Other than downgrading userland? No idea.

Ok, the root cause has been found in discussion is mrg@:

http://mail-index.netbsd.org/source-changes/2010/06/01/msg010582.html

The __cacheline_aligned is visible to userland and
xen includes <sys/cdefs_elf.h> through <stdarg.h>.

The xen kernel doesn't see COHERENCY_UNIT and is therefore
complaining for the missing value.

The question is why is __cacheline_aligned visible
to userland?

A quick fix is to edit /usr/include/sys/cdefs_elf.h
and surround __cacheline_aligned with

#ifdef _KERNEL

...

#endif

Christoph