From owner-freebsd-sparc64@freebsd.org Fri May 27 12:03:23 2016 Return-Path: Delivered-To: freebsd-sparc64@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 75A3AB4A53D; Fri, 27 May 2016 12:03:23 +0000 (UTC) (envelope-from mark.cave-ayland@ilande.co.uk) Received: from s16892447.onlinehome-server.info (chuckie.co.uk [82.165.15.123]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3707C1A5D; Fri, 27 May 2016 12:03:22 +0000 (UTC) (envelope-from mark.cave-ayland@ilande.co.uk) Received: from host31-50-169-25.range31-50.btcentralplus.com ([31.50.169.25] helo=[192.168.1.65]) by s16892447.onlinehome-server.info with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1b6GD6-00077b-K1; Fri, 27 May 2016 12:45:49 +0100 To: Mark Millard , Matthias Andree References: <7AFD3661-9764-434B-A387-FD31B62DD77E@dsl-only.net> <5747F78A.5020103@gmx.de> Cc: freebsd-arm , FreeBSD Toolchain , freebsd-sparc64@freebsd.org From: Mark Cave-Ayland Message-ID: <5748334B.6070504@ilande.co.uk> Date: Fri, 27 May 2016 12:45:15 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 31.50.169.25 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on s16892447.onlinehome-server.info X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.3.2 Subject: Re: Are there SPARC [or other] aligned memory access requirements to avoid exceptions? [now that 11.0's armv6/v7 is allowing more unaligned accesses] X-SA-Exim-Version: 4.2.1 (built Sun, 08 Jan 2012 02:45:44 +0000) X-SA-Exim-Scanned: Yes (on s16892447.onlinehome-server.info) X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 May 2016 12:03:23 -0000 On 27/05/16 12:35, Mark Millard wrote: >> 1 - figure if this affects other RISC architectures. Cedric got the >> SPARC on the hook, but I'm open for input on other arch's. >> >> If someone can report back if the lzo2 port runs into >> unaligned-access-emulation traps on FreeBSD/sparc*, that would be >> helpful. I do not have access to SPARC computers any more. > > I also have no access to any SPARC variants. If you grab yourself a copy of the latest QEMU 2.6, you should be able to happily install FreeBSD-current under qemu-system-sparc64 in -nographic mode. The emulation is still a work-in-progress but one of its primary use cases is allow people to generate builds even if they don't have access to the real hardware. ATB, Mark.