From owner-cvs-src@FreeBSD.ORG Fri Jun 27 03:50:22 2003 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B643937B401; Fri, 27 Jun 2003 03:50:22 -0700 (PDT) Received: from mail.pcnet.com (mail.pcnet.com [204.213.232.4]) by mx1.FreeBSD.org (Postfix) with ESMTP id ED2F743FDD; Fri, 27 Jun 2003 03:50:21 -0700 (PDT) (envelope-from eischen@vigrid.com) Received: from mail.pcnet.com (mail.pcnet.com [204.213.232.4]) by mail.pcnet.com (8.12.8/8.12.1) with ESMTP id h5RAoLXh018008; Fri, 27 Jun 2003 06:50:21 -0400 (EDT) Date: Fri, 27 Jun 2003 06:50:21 -0400 (EDT) From: Daniel Eischen X-Sender: eischen@pcnet5.pcnet.com To: Marcel Moolenaar In-Reply-To: <200306270615.h5R6FDYM012904@repoman.freebsd.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/lib/libpthread/arch/ia64/ia64 context.S X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: deischen@FreeBSD.org List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jun 2003 10:50:23 -0000 On Thu, 26 Jun 2003, Marcel Moolenaar wrote: > marcel 2003/06/26 23:15:13 PDT > > FreeBSD src repository > > Modified files: > lib/libpthread/arch/ia64/ia64 context.S > Log: > Implement _ia64_save_context() and _ia64_restore_context(). Both > functions are derived from the swapctx() and restorectx() (resp) > from sys/ia64/ia64/context.s. The code is expected to be 99% > correct, but has not yet been tested. > > Note that with these functions operating on mcontext_t, we also > created the foundation upon which we can implement getcontext(2) > and setcontext(2) replacements. It's not guaranteed that the use > of these syscalls and _ia64_{save|restore}_context() on the same > uicontext_t is actually going to work. Replacing the syscalls is > now trivially achieved. For libkse anyways, [gs]etcontext(2) (or library versions of them) are only used when delivering signals, and even then only under certain circumstances (when signals are deferred due to being in critical regions, I think). So there shouldn't really be any impact for not having userland versions of these syscalls. Not that I'd want to stop anyone from implementing them... :-) > This commit completes the ia64 port of libpthread itself (modulo > testing and bugfixes). Yay! Nice job :-) -- Dan Eischen