From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751709AbXCEXDQ (ORCPT ); Mon, 5 Mar 2007 18:03:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752113AbXCEXDQ (ORCPT ); Mon, 5 Mar 2007 18:03:16 -0500 Received: from gw.goop.org ([64.81.55.164]:58182 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751709AbXCEXDP (ORCPT ); Mon, 5 Mar 2007 18:03:15 -0500 Message-ID: <45ECA1B1.40102@goop.org> Date: Mon, 05 Mar 2007 15:03:13 -0800 From: Jeremy Fitzhardinge User-Agent: Thunderbird 1.5.0.9 (X11/20070212) MIME-Version: 1.0 To: Roland McGrath CC: Andi Kleen , Ingo Molnar , Andrew Morton , linux-kernel@vger.kernel.org, Rusty Russell , Jan Beulich Subject: Re: [patch] paravirt: VDSO page is essential References: <20070305225859.236021800E5@magilla.sf.frob.com> In-Reply-To: <20070305225859.236021800E5@magilla.sf.frob.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Roland McGrath wrote: >> Jan Beulich just posted a patch to do just this - relocate the vdso's >> ELF header. If that's all that's really required to keep COMPAT_VDSO >> viable under PARAVIRT, then it seems like the way to go. >> > > I found http://marc.theaimsgroup.com/?l=xen-devel&m=117309332600075&w=2 and > that must be the one you meant. The ELF-grokking form of that is exactly > what I had in mind. The "find relocs with cmp" scheme is pretty silly, but > also works fine. It trades tweaky ELF knowledge with tweaky fragile build > methods, but it's all about the same to me. > That's the one. I think the C version is the one to go with. J