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=-3.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT 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 9E5F5C04AAF for ; Thu, 16 May 2019 14:29:32 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 721C120833 for ; Thu, 16 May 2019 14:29:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="g1PhN+4q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 721C120833 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CVUelm31bfs6b52i3zJxCNkXWR4pjJ5NW9WKUaZ9BCw=; b=g1PhN+4qykGsGA Y8E1nvZPQpymxyDoeRJCVJEdZ6yL37tFShUAAiOG/MMNyjAzyqekvam6g1sRp+LeU5xdJHLD2EL8n R3s1T+dkOZSxS1I4Za6kX0BXiLwxqZs3ZYZwiYRZpEkn3qFYLoF92RTDGvdILFIOnjyCWd4IVKO2p 5auRJ5xhh1fCcXXzZKcSMNuNpBYM9AQoCYgXaWaSheGP0qmh1NqHzuaut91N87fjZCZSDpEo+n1/k h0hj+NUwlIGpi5fBeOzXTgFwSAqTP1p3f7IKSkijvB9VJGTBRn3n5zE9GV6oPMURafbLb8I7S9S3b xof/kn0/Q8J+YIy9kzZA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRHNu-00014O-Ci; Thu, 16 May 2019 14:29:26 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRHNq-00013h-Rc for linux-arm-kernel@lists.infradead.org; Thu, 16 May 2019 14:29:24 +0000 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2C85C30C0DCD; Thu, 16 May 2019 14:29:22 +0000 (UTC) Received: from treble (ovpn-120-91.rdu2.redhat.com [10.10.120.91]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2C32860BE0; Thu, 16 May 2019 14:29:20 +0000 (UTC) Date: Thu, 16 May 2019 09:29:17 -0500 From: Josh Poimboeuf To: Raphael Gault Subject: Re: [RFC V2 00/16] objtool: Add support for Arm64 Message-ID: <20190516142917.nuhh6dmfiufxqzls@treble> References: <20190516103655.5509-1-raphael.gault@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190516103655.5509-1-raphael.gault@arm.com> User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Thu, 16 May 2019 14:29:22 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190516_072922_912908_9CC98BBA X-CRM114-Status: GOOD ( 11.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: julien.thierry@arm.com, peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, May 16, 2019 at 11:36:39AM +0100, Raphael Gault wrote: > Noteworthy points: > * I still haven't figured out how to detect switch-tables on arm64. I > have a better understanding of them but still haven't implemented checks > as it doesn't look trivial at all. Switch tables were tricky to get right on x86. If you share an example (or even just a .o file) I can take a look. Hopefully they're somewhat similar to x86 switch tables. Otherwise we may want to consider a different approach (for example maybe a GCC plugin could help annotate them). -- Josh _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel