From owner-freebsd-current@FreeBSD.ORG Mon Mar 22 18:53:39 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9DE33106566B; Mon, 22 Mar 2010 18:53:39 +0000 (UTC) (envelope-from obrien@NUXI.org) Received: from dragon.nuxi.org (trang.nuxi.org [74.95.12.85]) by mx1.freebsd.org (Postfix) with ESMTP id 78CB68FC0A; Mon, 22 Mar 2010 18:53:39 +0000 (UTC) Received: from dragon.nuxi.org (obrien@localhost [127.0.0.1]) by dragon.nuxi.org (8.14.4/8.14.4) with ESMTP id o2MIrVMr088871; Mon, 22 Mar 2010 11:53:31 -0700 (PDT) (envelope-from obrien@dragon.nuxi.org) Received: (from obrien@localhost) by dragon.nuxi.org (8.14.4/8.14.4/Submit) id o2MIrVfM088870; Mon, 22 Mar 2010 11:53:31 -0700 (PDT) (envelope-from obrien) Date: Mon, 22 Mar 2010 11:53:31 -0700 From: "David O'Brien" To: "M. Warner Losh" Message-ID: <20100322185331.GA88847@dragon.NUXI.org> Mail-Followup-To: obrien@freebsd.org, "M. Warner Losh" , yanefbsd@gmail.com, freebsd-current@freebsd.org, nwhitehorn@freebsd.org, swhetzel@gmail.com References: <7d6fde3d1003111720g7dccf93w1f51db88758a5c4d@mail.gmail.com> <20100311.192423.683591382013853731.imp@bsdimp.com> <20100312171758.GB31089@dragon.NUXI.org> <20100312.125032.270969355930630649.imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100312.125032.270969355930630649.imp@bsdimp.com> X-Operating-System: FreeBSD 9.0-CURRENT X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? User-Agent: Mutt/1.5.16 (2007-06-09) Cc: yanefbsd@gmail.com, freebsd-current@freebsd.org, nwhitehorn@freebsd.org, swhetzel@gmail.com Subject: Re: HEADS UP: COMPAT_IA32 renamed COMPAT_FREEBSD32 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: obrien@freebsd.org List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Mar 2010 18:53:39 -0000 On Fri, Mar 12, 2010 at 12:50:32PM -0700, M. Warner Losh wrote: > : On Thu, Mar 11, 2010 at 07:24:23PM -0700, M. Warner Losh wrote: > So the issue isn't as cut and dried as you might think. There's > multiple different conventions used here in addition to your simple > example. I guess we'd have to take a poll to find out. Seems pretty cut and dried to me. COMPAT_FREEBSDn has an established context that does not match this new usage. That is - same bit'ness, compatibility with an older FreeBSD API for the same architecture. All the other COMPAT_* are for foreign ABI compatibility. COMPAT_LINUX32 possibly should have been "COMPAT_LINUX_X86_64". (or is it MI and is usable as-is for PowerPC and MIPS? I haven't looked that deeply at the code.) > Users of 64-bit systems that will be using COMPAT_FREEBSD32 > are likely to find this a natural extension of the COMPAT_LINUX32 that > they are likely already using. You know I am such a user - and I don't think it is so clear given the existence (and purpose) of "COMPAT_FREEBSDn" for the past many years. While it does match the directory name of 'sys/compat/freebsd32', it may be that "freebsd32" was a poor choice for that directory's name. But given the recent discussion in another thread - I won't even suggest we rename it. -- -- David (obrien@FreeBSD.org)