From owner-cvs-all@FreeBSD.ORG Thu Dec 8 03:21:40 2005 Return-Path: X-Original-To: cvs-all@freebsd.org Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EDA7716A41F; Thu, 8 Dec 2005 03:21:40 +0000 (GMT) (envelope-from deischen@freebsd.org) Received: from mail.ntplx.net (mail.ntplx.net [204.213.176.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4A29A43D46; Thu, 8 Dec 2005 03:21:40 +0000 (GMT) (envelope-from deischen@freebsd.org) Received: from sea.ntplx.net (sea.ntplx.net [204.213.176.11]) by mail.ntplx.net (8.13.5/8.13.5/NETPLEX) with ESMTP id jB83LYHM025602; Wed, 7 Dec 2005 22:21:35 -0500 (EST) Date: Wed, 7 Dec 2005 22:21:34 -0500 (EST) From: Daniel Eischen X-X-Sender: eischen@sea.ntplx.net To: David Xu In-Reply-To: <43977A05.5050608@freebsd.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS and Clam AntiVirus (mail.ntplx.net) Cc: Scott Long , src-committers@freebsd.org, Doug Ambrisko , John Baldwin , cvs-src@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/sys signal.h X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Daniel Eischen List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Dec 2005 03:21:41 -0000 On Thu, 8 Dec 2005, David Xu wrote: > Daniel Eischen wrote: > >>So will there be some sort of compatibility shims? I bet that there > >>will still be a lot of 4.x binaries being run on 7.0 systems in the > >>future, just like 2.2.8 binaries were being run for years after 3.x and > >>4.x came out. > >> > >> > > > >Yeah, and we can implement the shims in versioned libraries ;-) > > > At least, util now, there is no binary compatible problem. but I would like > we will implement SIGEV_THREAD before 7.0, this is why I requested you > to implement it ASAP because you claimed you will do it, so I just > sit back. Current only libthr implemented SIGEV_THERAD for timer, I can > implement it for mqueue, but aio syscall interface sucks, need more time > for it. I was going to do it in libc so it doesn't have to be done by each thread library. But there are still aio_* syscalls that haven't been changed to have compat syscalls. You did aio_read, aio_write, and lio_listion, but not aio_error, aio_return, aio_suspend, aio_cancel, and aio_waitcomplete. I think these really need compat syscalls due to the different layout of struct sigevent (because it affects layout of struct aiocb). I don't think Library-level shims aren't going to help in the case of statically built binaries. -- DE