From owner-freebsd-arch Wed Nov 29 22:55:52 2000 Delivered-To: freebsd-arch@freebsd.org Received: from hand.dotat.at (sfo-gw.covalent.net [207.44.198.62]) by hub.freebsd.org (Postfix) with ESMTP id 7F71C37B400; Wed, 29 Nov 2000 22:55:49 -0800 (PST) Received: from fanf by hand.dotat.at with local (Exim 3.15 #3) id 141NcV-0007Al-00; Thu, 30 Nov 2000 06:55:03 +0000 Date: Thu, 30 Nov 2000 06:55:03 +0000 From: Tony Finch To: Daniel Eischen Cc: Alfred Perlstein , John Baldwin , Arun Sharma , arch@FreeBSD.ORG Subject: Re: Thread-specific data and KSEs Message-ID: <20001130065503.E58294@hand.dotat.at> References: <20001122133421.S18037@fw.wintelcom.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: Organization: Covalent Technologies, Inc Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Daniel Eischen wrote: >On Wed, 22 Nov 2000, Alfred Perlstein wrote: >> >> Was there something wrong with the suggestion to put the local info >> on the stack? I just don't see it being discussed at all. > >Yes, I stated that it could not be used. We want to provide a POSIX >complaint API, and this dictates that applications be able to create >stacks of their own size and choosing. We can't rely on stacks being >any particular size, or starting at any particular address. Additionally, wouldn't you have to walk up the stack to find its base? (which I guess would be a bit more expensive than dereferencing %gs) Tony. -- f.a.n.finch dot@dotat.at fanf@covalent.net Chad for President! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message