linux-kernel - Re: Kconfig: ARCH=x86 causes wrong utsname.machine

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Message-ID: <20071117075715.GB4723@uranus.ravnborg.org>
Date:	Sat, 17 Nov 2007 08:57:15 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andreas Herrmann <aherrman@...or.de>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: Kconfig: ARCH=x86 causes wrong utsname.machine

> >
> >Any good suggestions here???
> >UTS_MACHINE is set in top-level Makefile and if we specify
> >make ARCH=x86
> >we do not know if i386 or x86_&4 is correct until the configuration
> >has been read.
> >
> >Should we report a "make ARCH=x86" as uname -m == x86??
> >
> 
> That would break 5 years of a stable ABI.  I don't think that is even 
> remotely feasible.

I will try to cook up a patch that sets CONFIG_UTS_MACHINE
and then we will use that value unless it is undefined in which
case we fall back to UTS_MACHINE (as today).

	Sam
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