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=-11.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 CEE8BC5517A for ; Sat, 10 Oct 2020 22:51:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 96FAE22251 for ; Sat, 10 Oct 2020 22:51:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="NAgLkiJF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733052AbgJJWmR (ORCPT ); Sat, 10 Oct 2020 18:42:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:58799 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730800AbgJJTAd (ORCPT ); Sat, 10 Oct 2020 15:00:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602356416; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=et8KSwo7ZuY1knITYz0pDwFHcnBsxQxwMZNMMJex3WA=; b=NAgLkiJFXqO8Gf8IxG7zq5EECOzFt14AyuDK1j+xAvnBnX5XPCD9pyWqXsXrc0/TooUNj0 2YeXhZvuonKzUts6tCiJ25z1OxMO68RYDUIYuEWBO104Uq6Mx22jfK3KFQafqn6rnWLm6E JvWfHZ/MhMMgbOydzfA9V7q5zLuKym0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-507-oyaZPeUMPDixSdO_QkQz6w-1; Sat, 10 Oct 2020 13:44:23 -0400 X-MC-Unique: oyaZPeUMPDixSdO_QkQz6w-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C916E1005E5D; Sat, 10 Oct 2020 17:44:21 +0000 (UTC) Received: from treble (ovpn-112-146.rdu2.redhat.com [10.10.112.146]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A32655C1D0; Sat, 10 Oct 2020 17:44:19 +0000 (UTC) Date: Sat, 10 Oct 2020 12:44:15 -0500 From: Josh Poimboeuf To: Borislav Petkov Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org, Martin Schwidefsky , Vasily Gorbik , Masami Hiramatsu , x86 Subject: Re: [tip: objtool/core] x86/insn: Support big endian cross-compiles Message-ID: <20201010174415.zwopoy6vpficoqlr@treble> References: <160208761921.7002.1321765913567405137.tip-bot2@tip-bot2> <20201009203822.GA2974@worktop.programming.kicks-ass.net> <20201009204921.GB21731@zn.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20201009204921.GB21731@zn.tnic> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 09, 2020 at 10:49:21PM +0200, Borislav Petkov wrote: > On Fri, Oct 09, 2020 at 10:38:22PM +0200, Peter Zijlstra wrote: > > On Wed, Oct 07, 2020 at 04:20:19PM -0000, tip-bot2 for Martin Schwidefsky wrote: > > > The following commit has been merged into the objtool/core branch of tip: > > > > > > Commit-ID: 2a522b53c47051d3bf98748418f4f8e5f20d2c04 > > > Gitweb: https://git.kernel.org/tip/2a522b53c47051d3bf98748418f4f8e5f20d2c04 > > > Author: Martin Schwidefsky > > > AuthorDate: Mon, 05 Oct 2020 17:50:31 +02:00 > > > Committer: Josh Poimboeuf > > > CommitterDate: Tue, 06 Oct 2020 09:32:29 -05:00 > > > > > > x86/insn: Support big endian cross-compiles > > > > > > x86 instruction decoder code is shared across the kernel source and the > > > tools. Currently objtool seems to be the only tool from build tools needed > > > which breaks x86 cross compilation on big endian systems. Make the x86 > > > instruction decoder build host endianness agnostic to support x86 cross > > > compilation and enable objtool to implement endianness awareness for > > > big endian architectures support. > > > > > > Signed-off-by: Martin Schwidefsky > > > Co-developed-by: Vasily Gorbik > > > Signed-off-by: Vasily Gorbik > > > Acked-by: Masami Hiramatsu > > > Signed-off-by: Josh Poimboeuf > > > > This commit breaks the x86 build with CONFIG_X86_DECODER_SELFTEST=y. > > > > I've asked Boris to truncate tip/objtool/core. > > Yeah, top 4 are gone until this is resolved. Masami, I wonder if we even need these selftests anymore? Objtool already decodes the entire kernel. -- Josh