From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AEB02C43381 for ; Thu, 28 Mar 2019 15:14:04 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0B5DC20823 for ; Thu, 28 Mar 2019 15:14:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0B5DC20823 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 44VT0n6RRwzDqVD for ; Fri, 29 Mar 2019 02:14:01 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=permerror (mailfrom) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 44VSyw5NdYzDq6B for ; Fri, 29 Mar 2019 02:12:23 +1100 (AEDT) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id x2SFC0sN006256; Thu, 28 Mar 2019 10:12:00 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id x2SFBwJ3006251; Thu, 28 Mar 2019 10:11:58 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Thu, 28 Mar 2019 10:11:58 -0500 From: Segher Boessenkool To: Christophe Leroy Subject: Re: [PATCH] powerpc: vmlinux.lds: Drop Binutils 2.18 workarounds Message-ID: <20190328151158.GB3969@gate.crashing.org> References: <874l7qpi7l.fsf@concordia.ellerman.id.au> <20190326181914.GS3969@gate.crashing.org> <5f4aa4b2-1c44-70b9-c383-5d40aecd695c@c-s.fr> <20190326201231.GV3969@gate.crashing.org> <20190326222941.GW3969@gate.crashing.org> <8aa0290a-908c-38d8-e040-c8c0cc226eb9@c-s.fr> <20190327124754.GY3969@gate.crashing.org> <20190327182128.GA3969@gate.crashing.org> <4ceb12ff-b114-6edd-e9c2-a6cd922720a2@c-s.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4ceb12ff-b114-6edd-e9c2-a6cd922720a2@c-s.fr> User-Agent: Mutt/1.4.2.3i X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, Joel Stanley Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, Mar 28, 2019 at 07:19:57AM +0100, Christophe Leroy wrote: > Le 27/03/2019 à 19:21, Segher Boessenkool a écrit : > >Yeah, okay, we should have some PHDRS statement here still. You can drop > >the dummy segment, and the notes segment as well, or you can keep the notes > >section in both the notes and kernel segments. > > Is the note segment useful at all ? I guess if we decide to keep it, we > should have a reason. I don't know if it is. $ readelf -x17 powerpc64/kernel/vmlinux Hex dump of section '.notes': 0xc0000000010d4128 00000004 00000014 00000003 474e5500 ............GNU. 0xc0000000010d4138 ba254e47 396b1745 176695d8 6b54c9e3 .%NG9k.E.f..kT.. 0xc0000000010d4148 959cedd7 00000006 00000001 00000100 ................ 0xc0000000010d4158 4c696e75 78000000 00000000 Linux....... Does that look useful? There's a build-id in there it seems. I don't know if any tools look at that, or how they find it. > >(You patch doesn't apply btw, whitespace damage I think; will you send a > >new one?) > > Originally the patch is by Joel Stanley > > I guess he will send a v2 taking into account the discussion ? Please do Joel :-) Thanks in advance, etc. > Or maybe you can send it yourself as you are probably the best person to > explain in details the change in the commit message. I have no way of testing things properly. Segher