From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay1.mentorg.com ([192.94.38.131]) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1USTGO-0000Oz-Rb for openembedded-core@lists.openembedded.org; Wed, 17 Apr 2013 16:23:14 +0200 Received: from svr-orw-exc-10.mgc.mentorg.com ([147.34.98.58]) by relay1.mentorg.com with esmtp id 1USSzH-0006Pg-EC from Sergey_Matyukevich@mentor.com ; Wed, 17 Apr 2013 07:05:27 -0700 Received: from SVR-IES-FEM-01.mgc.mentorg.com ([137.202.0.104]) by SVR-ORW-EXC-10.mgc.mentorg.com with Microsoft SMTPSVC(6.0.3790.4675); Wed, 17 Apr 2013 07:05:27 -0700 Received: from [137.202.140.158] (137.202.0.76) by SVR-IES-FEM-01.mgc.mentorg.com (137.202.0.104) with Microsoft SMTP Server id 14.1.289.1; Wed, 17 Apr 2013 15:05:26 +0100 Message-ID: <516EAC25.40109@mentor.com> Date: Wed, 17 Apr 2013 18:05:25 +0400 From: Sergey Matyukevich Organization: Mentor Graphics User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.16) Gecko/20121216 Iceowl/1.0b1 Icedove/3.0.11 MIME-Version: 1.0 To: Bruce Ashfield References: <1366200612-22469-1-git-send-email-sergey_matyukevich@mentor.com> In-Reply-To: X-OriginalArrivalTime: 17 Apr 2013 14:05:27.0421 (UTC) FILETIME=[9CDBAAD0:01CE3B74] Cc: Patches and discussions about the oe-core layer Subject: Re: [PATCH] map_kernel_arch: x86 sub-architectures X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Apr 2013 14:23:22 -0000 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Hello, >> Suppose we build software for x86 targets on x86 build hosts. There are use-cases >> when it is not enough to specify x86 as a kernel architecture. It is necessary > > What are the details of the use cases ? I've never run into this myself, and > almost no parts of the kernel build infrastructure differentiates between > x86 and x86_64 .. so I'm curious to know what is breaking. So far we observed this problem in two cases: - build systemtap modules for x86_32 target on x86_64 build hosts - build virtualbox-guest modules for x86_32 target on x86_64 build hosts Sergey