From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 2A03C138CC5 for ; Tue, 24 Mar 2015 00:26:56 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 5843AE088F; Tue, 24 Mar 2015 00:26:51 +0000 (UTC) Received: from smarthost01b.mail.zen.net.uk (smarthost01b.mail.zen.net.uk [212.23.1.3]) by pigeon.gentoo.org (Postfix) with ESMTP id 418EFE0844 for ; Tue, 24 Mar 2015 00:26:49 +0000 (UTC) Received: from [82.69.80.10] (helo=wstn.localnet) by smarthost01b.mail.zen.net.uk with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1YaCgD-0006jL-7W for gentoo-user@lists.gentoo.org; Tue, 24 Mar 2015 00:26:49 +0000 From: Peter Humphrey To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Will a 64-bit-no-multilib machine cross-compile 32-bit code? Date: Tue, 24 Mar 2015 00:26:48 +0000 Message-ID: <2142417.AA4GO12QKe@wstn> Organization: Society for Retired Gentlefolk User-Agent: KMail/4.14.3 (Linux/3.18.9-gentoo; KDE/4.14.3; x86_64; ; ) In-Reply-To: <20150324015104.GA32732@waltdnes.org> References: <20150319015612.GA7416@waltdnes.org> <1570093.qMVvttJaZ4@navi> <20150324015104.GA32732@waltdnes.org> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Originating-smarthost01b-IP: [82.69.80.10] X-Archives-Salt: 939a3043-f926-4a83-b79f-7faa5bab4334 X-Archives-Hash: 5ea7d39e481ca23e2fb05b82f001307e On Monday 23 March 2015 21:51:04 Walter Dnes wrote: > I have one of the earliest Atom chips. Some people have a hard time > believing this, but it's a 32-bit-only chip; a couple of lines from > /proc/cpuinfo > > model name : Intel(R) Atom(TM) CPU Z520 @ 1.33GHz > address sizes : 32 bits physical, 32 bits virtual I have a 32-bit Atom box too. The corresponding lines are: model name : Intel(R) Atom(TM) CPU N270 @ 1.60GHz address sizes : 32 bits physical, 32 bits virtual It has two cores though, and it does have mmx according to /proc/cpuinfo. > I want to make absolutely certain that "illegal instructions" are not > compiled for it. I export its packages directory via NFS to a 32-bit chroot on my workstation which I've set up to compile packages for it. I just have to make sure that /etc/portage/* is the same and it just works. Well, there are a few differences because the Atom box is the LAN server, but it's nearly the same. -- Rgds Peter.