From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id 34B3BE00874; Wed, 10 Dec 2014 22:55:33 -0800 (PST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on yocto-www.yoctoproject.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] Received: from smtp102.mer-nm.internl.net (smtp102.mer-nm.internl.net [217.149.192.138]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 71F3DE0080C for ; Wed, 10 Dec 2014 22:55:15 -0800 (PST) Received: from amavisd-new (mailscanner05.wrt-nm.internl.net [217.149.192.128]) by smtp102.mer-nm.internl.net (Postfix) with ESMTP id 5120E3F503 for ; Thu, 11 Dec 2014 07:55:13 +0100 (CET) Received: from smtp102.mer-nm.internl.net ([217.149.192.138]) by amavisd-new (mailscanner05.wrt-nm.internl.net [217.149.192.160]) (amavisd-new, port 10024) with ESMTP for ; Thu, 11 Dec 2014 07:55:12 +0100 (CET) Received: from TOP-EX01.TOPIC.LOCAL (mail.topic.nl [82.204.13.182]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp102.mer-nm.internl.net (Postfix) with ESMTPS for ; Thu, 11 Dec 2014 07:55:12 +0100 (CET) Received: from [192.168.80.45] (192.168.80.45) by TOP-EX01.TOPIC.LOCAL (192.168.10.102) with Microsoft SMTP Server (TLS) id 14.3.181.6; Thu, 11 Dec 2014 07:55:26 +0100 Message-ID: <54893FCF.6010303@topic.nl> Date: Thu, 11 Dec 2014 07:55:11 +0100 From: Mike Looijmans User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: References: <95CF81BBD42FB348A182716C4D4310A805485ADE@G2W2533.americas.hpqcorp.net> In-Reply-To: X-Originating-IP: [192.168.80.45] X-EXCLAIMER-MD-CONFIG: 9833cda7-5b21-4d34-9a38-8d025ddc3664 X-EXCLAIMER-MD-BIFURCATION-INSTANCE: 0 Subject: Re: parallel build of multiple machine/os? X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Dec 2014 06:55:33 -0000 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: quoted-printable =EF=BB=BFOn 12/10/2014 08:00 PM, Khem Raj wrote: > >> On Dec 10, 2014, at 10:52 AM, Koehler, Yannick (HP Networking) wrote: >> >> Can Yocto build for example in a single bitbake call an image for x86, p= pc, arm, others? Or is the call to bitbake limited to a single architectur= e? And if so, how? >> >> I see that lots of *-native package are built, and I guess is that for e= ach machine/os those would be reused, as such, it appears it would be a ben= efit to be able to build multiple package version for different architectur= e/distro/machine in a single invocation of bitbake. > > parallel multi-machine builds have been discussed but not thought of wort= h doing. you could however share > lot of common packages among machines sequentially. > > [...] A more convincing use-case for multi-machine building is the emerging of=20 "hybrids". The little/big architecture that puts different versions of ARM= =20 CPUs into a single machine is one example, the OMAPs with the DSP and PRUs = are=20 another. Boards with FPGAs can have several CPU architectures running on a= =20 single board. One could imagine that one would want to build the software f= or=20 all these subsystems in a single call, and that one bitbake process would b= e=20 managing that the build system gets properly used. Currently, these hybrids have to invoke bitbake for each subsystem, probabl= y=20 needlessly regenerating binaries, and once more for the one image to find t= hem=20 all and in darkness bind them... Met vriendelijke groet / kind regards, Mike Looijmans System Expert TOPIC Embedded Systems Eindhovenseweg 32-C, NL-5683 KH Best Postbus 440, NL-5680 AK Best Telefoon: (+31) (0) 499 33 69 79 Telefax: (+31) (0) 499 33 69 70 E-mail: mike.looijmans@topic.nl Website: www.topic.nl Please consider the environment before printing this e-mail Topic zoekt gedreven (embedded) software specialisten! http://topic.nl/vacatures/topic-zoekt-software-engineers/