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=-5.8 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,URIBL_BLOCKED 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 AB526C4361B for ; Wed, 16 Dec 2020 20:24:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 60B72233A0 for ; Wed, 16 Dec 2020 20:24:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728795AbgLPUXs (ORCPT ); Wed, 16 Dec 2020 15:23:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727439AbgLPUXs (ORCPT ); Wed, 16 Dec 2020 15:23:48 -0500 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF195C06179C for ; Wed, 16 Dec 2020 12:23:07 -0800 (PST) Received: by mail-pg1-x533.google.com with SMTP id n10so10411474pgl.10 for ; Wed, 16 Dec 2020 12:23:07 -0800 (PST) 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=/u0Ml7z8U6hoRgIhUcWTGpqRq8tZ6gW1mUfFKW/Eh3E=; b=YxNWi7p0t1283L9u/yRAz+3PEm5W18srxEKo+tvG7XZ3z6a/WW1fJcQQ8VNbobGf60 8dMcg4TTJxdA0mO805jU8wXdFLImf4lhNSDVXv0ukok2XXtw75UNzJLDiCeko82+VRrG tJDBPP0eEQhocXu8e9o4wRJRU2ijAGHTw0M/M= 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=/u0Ml7z8U6hoRgIhUcWTGpqRq8tZ6gW1mUfFKW/Eh3E=; b=g1AarisjBFlCe5BeFVlAr5iyLXlUexKNj4W8Q6RFysEov6Jn2nYx1HwpjmTwVpDSIV VcQh6G0gTV7QMnMO3XpnTMu90yDa8ZpKxoO+gFbCPcSlsd9u9dm3PItZa59EgkudamhP vFFEV6Pj/E8Z+df+4MnjUK5feugPNrfdoUPDKXyrxiBDjLfktTTXGqB6OEF2S2ww0coI /QAk3HyqTHxCcV1HFgEN3YI0rWvdworxdBZHFNz+HPY7asyon3pJNQdOPruR5oJCwvlP 0/+jlEbZelBEX3JQgNKvrR58jVc+3PsSgv//QbBs/53eQrOWOkx6RBNGidlugSmS2nex eFaw== X-Gm-Message-State: AOAM5308KA054Z4TCeaWD1pOyPuilmsYBHtTKvDbIU15SeqxPzPcAilk hkckDzBAHPy0ZQ9r66vQ5eTHpg== X-Google-Smtp-Source: ABdhPJyFpM/otugbcdzZt/TsMDbqfxyVFXKIvI3gJb/onxct24dwWbur/ChxoAitPRminzqAis0+zA== X-Received: by 2002:a63:7d47:: with SMTP id m7mr34095599pgn.405.1608150187361; Wed, 16 Dec 2020 12:23:07 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id c199sm3815754pfb.108.2020.12.16.12.23.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Dec 2020 12:23:06 -0800 (PST) Date: Wed, 16 Dec 2020 12:23:05 -0800 From: Kees Cook To: Linus Torvalds Cc: Linux Kernel Mailing List , Masahiro Yamada Subject: Re: [GIT PULL] gcc-plugins updates for v5.11-rc1 Message-ID: <202012161221.18C0E3B5CC@keescook> References: <202012151215.E7AA7D6@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 16, 2020 at 11:24:04AM -0800, Linus Torvalds wrote: > On Tue, Dec 15, 2020 at 12:15 PM Kees Cook wrote: > > > > Please pull these gcc-plugins updates for v5.11-rc1. > > Hmm, I pulled this and then did an allmodconfig build. > > I expected that to be a full rebuild, since the plugins got > recompiled, but it turned out to just take 16 seconds because it only > compiled the plugins, not any of the object files. Hmm. Yeah, that's a bug. I think that's an existing bug, though. I feel like I scratched my head on that too. I will see if there is a sensible way to have Kbuild "notice" that -- I hope there's an easier way to invalidate all object files instead of adding all the plugins as a dep to all .o builds. O_o Thanks for the heads-up! -- Kees Cook