linux-kernel - Re: 32bit builds on x86-64 host.

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Message-ID: <20071030131032.GA32366@infradead.org>
Date:	Tue, 30 Oct 2007 13:10:32 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: 32bit builds on x86-64 host.

On Mon, Oct 29, 2007 at 05:07:08PM -0700, H. Peter Anvin wrote:
> Dave Jones wrote:
> >Before the arch merge, I frequently would test 32bit compiles
> >by doing make ARCH=i386 {bzImage/modules/file.o}
> >
> >Since commit 47572387d58a9584c60ebbbdee56fc92c627f16f
> >how does one do this?
> >
> 
> make ARCH=i386 {bzImage/modules/file.o}

Which seems rather unnatural to me.  All other merge architectures have
ARCH=<archdir> where archdir is the name under arch, e.g. mips, powerpc,
s390.  They then have a CONFIG_FOO_64 and set the utsname and -m32/-m64
respectively.  It would be nice if x86 could behave like all other
architectures in this respect.  Especially as the behaviour of the other
architectures is a lot more intuitive.

> 
> Amazing, isn't it?
> 
> 	-hpa
> -
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