From owner-cvs-all@FreeBSD.ORG Thu Mar 6 06:36:33 2008 Return-Path: Delivered-To: cvs-all@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2D5551065673; Thu, 6 Mar 2008 06:36:33 +0000 (UTC) (envelope-from das@FreeBSD.ORG) Received: from zim.MIT.EDU (ZIM.MIT.EDU [18.95.3.101]) by mx1.freebsd.org (Postfix) with ESMTP id CAE928FC12; Thu, 6 Mar 2008 06:36:32 +0000 (UTC) (envelope-from das@FreeBSD.ORG) Received: from zim.MIT.EDU (localhost [127.0.0.1]) by zim.MIT.EDU (8.14.2/8.14.2) with ESMTP id m266bkuv048729; Thu, 6 Mar 2008 01:37:46 -0500 (EST) (envelope-from das@FreeBSD.ORG) Received: (from das@localhost) by zim.MIT.EDU (8.14.2/8.14.2/Submit) id m266bkus048728; Thu, 6 Mar 2008 01:37:46 -0500 (EST) (envelope-from das@FreeBSD.ORG) Date: Thu, 6 Mar 2008 01:37:46 -0500 From: David Schultz To: Peter Jeremy Message-ID: <20080306063746.GC48339@zim.MIT.EDU> Mail-Followup-To: Peter Jeremy , Colin Percival , Bruce Evans , src-committers@FreeBSD.ORG, cvs-src@FreeBSD.ORG, cvs-all@FreeBSD.ORG References: <200803051121.m25BLE03035426@repoman.freebsd.org> <20080305182531.GS68971@server.vk2pj.dyndns.org> <20080306021222.GA46783@zim.MIT.EDU> <47CF5D19.3090100@freebsd.org> <20080306033246.GA47280@zim.MIT.EDU> <20080306062301.GX68971@server.vk2pj.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080306062301.GX68971@server.vk2pj.dyndns.org> Cc: cvs-src@FreeBSD.ORG, src-committers@FreeBSD.ORG, Bruce Evans , Colin Percival , cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/include _types.h X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Mar 2008 06:36:33 -0000 On Thu, Mar 06, 2008, Peter Jeremy wrote: > On Wed, Mar 05, 2008 at 10:32:46PM -0500, David Schultz wrote: > >gcc doesn't get any of this right. FreeBSD/i386 fixes the problem > >for /doubles/ by setting the i387 to use 53-bit precision. > > Note that FreeBSD/amd64 does not do this when running i386 binaries > so you can get discrepancies between running the same program natively > vs running it in compatibility mode. Good point. I don't think i386 ever got fixed to do the appropriate mode change for Linux binaries, either, BTW.