From owner-freebsd-hackers@FreeBSD.ORG Thu Jan 21 10:37:46 2010 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 589201065679 for ; Thu, 21 Jan 2010 10:37:46 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from mail.embedded-brains.de (host-82-135-62-35.customer.m-online.net [82.135.62.35]) by mx1.freebsd.org (Postfix) with ESMTP id 11C218FC26 for ; Thu, 21 Jan 2010 10:37:45 +0000 (UTC) Received: by mail.embedded-brains.de (Postfix, from userid 65534) id F08086F7D44; Thu, 21 Jan 2010 11:21:59 +0100 (CET) Received: from [192.168.96.31] (eb0011.eb.z [192.168.96.31]) by mail.embedded-brains.de (Postfix) with ESMTP id BCFD56F7D42 for ; Thu, 21 Jan 2010 11:21:56 +0100 (CET) Message-ID: <4B582AC4.9030502@embedded-brains.de> Date: Thu, 21 Jan 2010 11:21:56 +0100 From: Sebastian Huber User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091130 SUSE/3.0.0-17.1 Lightning/1.0b1 Thunderbird/3.0 MIME-Version: 1.0 To: FreeBSD-Hackers Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Cc: Subject: ARM and structure size boundary 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: Thu, 21 Jan 2010 10:37:46 -0000 Hi, on ARM the GCC has an option for the structure size boundary: http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html#ARM-Options In the GCC sources (gcc/config/arm) you see that NetBSD changes the default value to 8 from 32. For FreeBSD I did not found something similar. What value is used on FreeBSD by default? This value is (or was) important for the network stack. Do you know if the current FreeBSD network stack is dependent on this value? In the file gcc/config/arm/netbsd.h (GCC sources) is a comment about this topic. Have a nice day! -- Sebastian Huber, embedded brains GmbH Address : Obere Lagerstr. 30, D-82178 Puchheim, Germany Phone : +49 89 18 90 80 79-6 Fax : +49 89 18 90 80 79-9 E-Mail : sebastian.huber@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.