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[23.128.96.18]) by mx.google.com with ESMTP id l24si1431891ejk.522.2020.09.17.22.39.06; Thu, 17 Sep 2020 22:39:30 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="uis/nomw"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726420AbgIRFfx (ORCPT + 99 others); Fri, 18 Sep 2020 01:35:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58006 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726370AbgIRFfx (ORCPT ); Fri, 18 Sep 2020 01:35:53 -0400 Received: from mail-lf1-x141.google.com (mail-lf1-x141.google.com [IPv6:2a00:1450:4864:20::141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11A9DC06174A for ; Thu, 17 Sep 2020 22:35:53 -0700 (PDT) Received: by mail-lf1-x141.google.com with SMTP id y2so4739118lfy.10 for ; Thu, 17 Sep 2020 22:35:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=/bymMNxBgwleuFgLBFDrHQ+0acGZRuWjBwHuK7Z5b7Q=; b=uis/nomwrJdp6Sa3rXd3GZFRmneIHnmJ144MWqR6M1NezM3Q22H4qVfh9e6PEDvXNc v4QtqL5P9k2sujBt8HI6CISrawwHSoVtHQsSY4wTtOeV4lOukjdz4VOWrbtcuPpRFGSn sbdzBVsdKSWdprInrcUC7XM/R4aQ+BKeScm9ksph98RowCGbuyoVbhwIxeNbmx4Os7Lq qLse+H8sTuMqah6qgQ/imrwSHw/+g8BQ7EzeRlpNXILmAI8dArllygPDR0YLMvkCxViR WzpmKQo7Tieo6027ExjxX/lg/HNfwrcePr5qrzcQXLDZqFbJ+NJbQL8iJpEsg4CvqoO4 w4mQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=/bymMNxBgwleuFgLBFDrHQ+0acGZRuWjBwHuK7Z5b7Q=; b=byM9fRDrV4vAHYl/8bpvmDirCdjUlhLlv1diCAkjSQ696xoBIUPjwqxXlCB8w1FnGI Q31x10TfYEEq+XmTdU4pxKj5qgJ49QQ5n1S7Ipdj3pTH1M6StIWw/s4AihPEL0qLGMCW yhZ4viEXSRA9KsL0m5ziEmXri9TMOWkxr/mYuMz5m+1XHjRh5YE6inkwraFmZDDL35tD T6iIJknwu7gBKDswAchZbEK2Ygd8apZPdxM67jmYfHM+qJkaJ8YgyvtTR8p8c53UafbF 6mwZsj25UyFvkwUfWUvz6TcOHf6GQoK+pEbi1SpaaytKh+ZFbcFop90CwR+LgiAWlvxu OY1w== X-Gm-Message-State: AOAM530DaxRp0Ou+a7kXWGnxkr+uzMtKiPqvZ/O7BYDaNqBmQH0CECS7 QUDEtXPDKcNf9JLee4IFWZHZVYn8RpXzN8cUV/s= X-Received: by 2002:ac2:5193:: with SMTP id u19mr11584170lfi.518.1600407351407; Thu, 17 Sep 2020 22:35:51 -0700 (PDT) MIME-Version: 1.0 References: <20200917084905.1647262-1-ilie.halip@gmail.com> <20200917221620.n4vavakienaqvqvi@treble> In-Reply-To: <20200917221620.n4vavakienaqvqvi@treble> From: Ilie Halip Date: Fri, 18 Sep 2020 08:35:40 +0300 Message-ID: Subject: Re: [PATCH] objtool: ignore unreachable trap after call to noreturn functions To: Josh Poimboeuf Cc: Linux Kernel Mailing List , Nick Desaulniers , Rong Chen , Marco Elver , Philip Li , Borislav Petkov , kasan-dev , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , clang-built-linux , Peter Zijlstra , Nathan Chancellor Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > The patch looks good to me. Which versions of Clang do the trap after > noreturn call? It would be good to have that in the commit message. I omitted this because it happens with all versions of clang that are supported for building the kernel. clang-9 is the oldest version that could build the mainline x86_64 kernel right now, and it has the same behavior. Should I send a v2 with this info? I.H.