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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 E35E0C433E2 for ; Mon, 14 Sep 2020 20:11:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E403208DB for ; Mon, 14 Sep 2020 20:11:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="d7YvdRlJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726022AbgINULq (ORCPT ); Mon, 14 Sep 2020 16:11:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725920AbgINULk (ORCPT ); Mon, 14 Sep 2020 16:11:40 -0400 Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3488AC06174A for ; Mon, 14 Sep 2020 13:11:40 -0700 (PDT) Received: by mail-pj1-x1043.google.com with SMTP id q4so470846pjh.5 for ; Mon, 14 Sep 2020 13:11:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=XNL8jhesDz5w5639aZYzscEjBERwRtey/diox1hIc1E=; b=d7YvdRlJXEdwAOpI/T/HJ6dvTJ7saYd+au2CY13FtLC3mNnYuxo+4TG584AlgjGamb 4ljFLewIY8GdPgCJBsR4Dn/U2nCXNnAsLiSGU1pcqsN+eo3nd9XXnt4aXp6/i2AQ0aX5 d15/TcomKYYHT4pNH2Y+q5zOZNjbstyBplPmU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=XNL8jhesDz5w5639aZYzscEjBERwRtey/diox1hIc1E=; b=YHspf8ZuiT0HhRpfGojlDkeONt+q7NLUYG55RZIRzJcIYjyU3cJ/E/yes/T++Ho7ID 6Dc9UzaL+nq+z0qWCIMQcr0S60qa17kwjpFt9+pwaIApbz0FbApG8QUgnTWSka2YdctP E5TAjfr4EL5h6rIylycycY6RSjRP1b/v7CWYQEY7hVd58cVp7ViiQ0o9806oxt5XBUWK NXYP7+pjjVCdQ0a/P5cbBbuMctyeU86HBZWF6kz3gHjiHJUtBGPzL+IaslImPCb1A0c1 ezB6nLGmYY194r1gHhuus2L3gybqCAhvPBGkNWqWZjrYbdtkiNubYMR7Y1hvraljPeEh GNvA== X-Gm-Message-State: AOAM530lLoMCX2iWafk08i+159B+Go04Cq3MSUXlnYXkTp0DtetwMXsN VisBfJT5Y2w8ZDedZsvoMzk4qQ== X-Google-Smtp-Source: ABdhPJzzRGMAJ2ODlXq9ROLBadXCECak5JzFlT7eXG1NEBdvTymcuCsDxhVCu6n92KAIjAuUVwy5og== X-Received: by 2002:a17:902:9a02:: with SMTP id v2mr15694438plp.151.1600114299795; Mon, 14 Sep 2020 13:11:39 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id f6sm11202626pfq.82.2020.09.14.13.11.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Sep 2020 13:11:38 -0700 (PDT) Date: Mon, 14 Sep 2020 13:11:37 -0700 From: Kees Cook To: Stephen Rothwell Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra , Linux Next Mailing List , Linux Kernel Mailing List Subject: Re: linux-next: build warning after merge of the tip tree Message-ID: <202009141310.C668784@keescook> References: <20200914132249.40c88461@canb.auug.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200914132249.40c88461@canb.auug.org.au> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 14, 2020 at 01:22:49PM +1000, Stephen Rothwell wrote: > After merging the tip tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > x86_64-linux-gnu-ld: warning: orphan section `.ctors.65435' from `kernel/trace/trace_selftest_dynamic.o' being placed in section `.ctors.65435' > [...] Hmm, I wasn't seeing that... Which gcc and bintuils versions are you using? > Probably exposed by commit > > 83109d5d5fba ("x86/build: Warn on orphan section placement") Very likely! :) -- Kees Cook