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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C32D9C433EF for ; Wed, 25 May 2022 16:44:46 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4L7cNs3WXYz3c8q for ; Thu, 26 May 2022 02:44:45 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=) Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lists.ozlabs.org (Postfix) with ESMTP id 4L7cNR1Cp3z2ywc for ; Thu, 26 May 2022 02:44:21 +1000 (AEST) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 24PGet78019132; Wed, 25 May 2022 11:40:55 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id 24PGes7x019131; Wed, 25 May 2022 11:40:54 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Wed, 25 May 2022 11:40:54 -0500 From: Segher Boessenkool To: Christophe Leroy Subject: Re: [RFC PATCH v1 2/4] objtool: Add R_REL32 macro Message-ID: <20220525164054.GO25951@gate.crashing.org> References: <35932b18ea948cbc1e7ec9d006e4575641a4daa5.1653494186.git.christophe.leroy@csgroup.eu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <35932b18ea948cbc1e7ec9d006e4575641a4daa5.1653494186.git.christophe.leroy@csgroup.eu> 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: peterz@infradead.org, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, rostedt@goodmis.org, aik@ozlabs.ru, sv@linux.ibm.com, Paul Mackerras , naveen.n.rao@linux.vnet.ibm.com, mbenes@suse.cz, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hi! On Wed, May 25, 2022 at 05:58:15PM +0200, Christophe Leroy wrote: > In order to allow other architectures than x86 to use 32 bits > relative relocations, define a R_REL32 macro that each architecture > will define, in the same way as already done for R_NONE. What are the expected semantics of this relocation? It is PC-relative, sure, but what is the destination? S+A-P always? That works for both x86-64 and for PowerPC, but it should be written doen somewhere :-) Segher