Re: [Xen-devel] (no subject)

[Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>]

On Mon, Sep 19, 2005 at 01:52:36PM -0700, Magenheimer, Dan (HP Labs Fort 
Collins) wrote:
> > Rules.mk is fine.  What I meant is that LINUX_ARCH won't get
> > passed to mkbuildtree unless you add it to its environment.
> > I confirmed this now by adding this to mkbuildtree:
> > echo ${LINUX_ARCH} >>/tmp/xxxxxxxx
> > LINUX_ARCH is empty and thus your hook script won't run.  Maybe
> > you have LINUX_ARCH set in your shell environment where you ran
> > make?  Odd...
> 
> No, it's not in my shell environment.  However, when I run make
> to build for ia64 I run it as: 'make LINUX_ARCH=ia64 ...' and
> I'm guessing make must export it to subshells.  If I add the
> 'echo', I do get ia64 in /tmp/xxxxxx and the ia64 hook scripts
> do get run.

Yes, that explains it.

> I suppose it would be nice if on ia64 just 'make' did the
> right thing, e.g. set LINUX_ARCH=ia64 without the need to
> specify it on the command line.  In that case, adding it
> to all the calls to mkbuildtree is necessary.  How do
> I set LINUX_ARCH in Rules.mk so that it is set to 'xen'
> if x86 (or x86_64) and the architecture it is running on
> (e.g. ia64) otherwise?

I'll check it in tomorrow, and I'll make it set LINUX_ARCH
dependent on ARCH, like you did in your original patch...

Thanks!

    christian


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