From owner-freebsd-hackers@FreeBSD.ORG Sat Dec 29 08:10:05 2007 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EF26016A41A; Sat, 29 Dec 2007 08:10:05 +0000 (UTC) (envelope-from kientzle@freebsd.org) Received: from kientzle.com (h-66-166-149-50.snvacaid.covad.net [66.166.149.50]) by mx1.freebsd.org (Postfix) with ESMTP id B7DDA13C45A; Sat, 29 Dec 2007 08:10:05 +0000 (UTC) (envelope-from kientzle@freebsd.org) Received: (from root@localhost) by kientzle.com (8.12.9/8.12.9) id lBT7U9EY042699; Fri, 28 Dec 2007 23:30:09 -0800 (PST) (envelope-from kientzle@freebsd.org) Received: from [10.0.0.209] (p54.kientzle.com [66.166.149.54]) by kientzle.com with SMTP; Fri, 28 Dec 2007 23:30:09 -0800 (PST) (envelope-from kientzle@freebsd.org) Message-ID: <4775F77D.4070404@freebsd.org> Date: Fri, 28 Dec 2007 23:30:05 -0800 From: Tim Kientzle User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20060422 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ivan Voras References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-hackers@freebsd.org Subject: Re: Architectures with strict alignment? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Dec 2007 08:10:06 -0000 Ivan Voras wrote: > > Which of the architectures FreeBSD supports (if any) have strict memory > alignment requirements? (in the sense that accessing a 32-bit integer > not aligned on a 32-bit address results in a hardware trap/exception). I believe ARM has such requirements (at least, GCC for Arm does some very intriguing structure padding). Tim Kientzle