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From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 26 Sep 2013 19:27:27 +0530
Message-ID: <CALkWK0=6ThJtdu_tqqQFisJSFGE=bfsXAzEo+Yys7wjQS_eYCw@mail.gmail.com>
Subject: Re: [PATCH 2/8] um: Do not use SUBARCH
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Weinberger <richard@nod.at>,
        Linux-Arch <linux-arch@vger.kernel.org>, Michal Marek <mmarek@suse.cz>,
        Ralf Baechle <ralf@linux-mips.org>, Paul Mundt <lethal@linux-sh.org>,
        Jeff Dike <jdike@addtoit.com>, Guan Xuetao <gxt@mprc.pku.edu.cn>,
        Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        "the arch/x86 maintainers" <x86@kernel.org>,
        linux-kbuild <linux-kbuild@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-m68k <linux-m68k@vger.kernel.org>,
        Linux MIPS Mailing List <linux-mips@linux-mips.org>,
        Linux-sh list <linux-sh@vger.kernel.org>,
        uml-devel <user-mode-linux-devel@lists.sourceforge.net>
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Geert Uytterhoeven wrote:
> Sorry for chiming in, but... what about cross compiling?
> SUBARCH=x86 should give you a 32-bit ia32 kernel, right?

User-Mode Linux only supports two host architectures (called $SUBARCH)
at the moment: i386 and x86_64. If you leave out the $SUBARCH on
either an i386 or x86_64 machine, my patch will automatically pick the
$(uname -m) architecture to build with. To cross-compile, specify the
$SUBARCH explicitly.
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