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[23.128.96.18]) by mx.google.com with ESMTP id cw9si2290660ejb.734.2021.02.03.16.37.24; Wed, 03 Feb 2021 16:37:49 -0800 (PST) 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=@nifty.com header.s=dec2015msa header.b=ShGXNxre; 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=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234132AbhBDAfj (ORCPT + 99 others); Wed, 3 Feb 2021 19:35:39 -0500 Received: from conssluserg-03.nifty.com ([210.131.2.82]:23509 "EHLO conssluserg-03.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234102AbhBDAfh (ORCPT ); Wed, 3 Feb 2021 19:35:37 -0500 Received: from mail-pl1-f175.google.com (mail-pl1-f175.google.com [209.85.214.175]) (authenticated) by conssluserg-03.nifty.com with ESMTP id 1140YYJq030064; Thu, 4 Feb 2021 09:34:34 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conssluserg-03.nifty.com 1140YYJq030064 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1612398875; bh=d0o4oX2TkUWeKmRsE9flKYZWBAGhmf97FwyHDWzgr/A=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=ShGXNxreLHQW5f1+twhsUG4wSBHBsa/ay1IzNed0iCRMnz7dA9cFTrFDH4GyrnLpv o2cP7haRc+ONN82gcuMreWFb1BJKMHA6TM3McDG84BwImnAD7p4Yq15cFdcmg95yBg oeXfLROr1ngDb6N26lYTbm8nE9NzjC4ys8Kn/Zc9XQ5E09iAE7tunl6v8muo1VrS10 eNXq3xu1T/6pLHaLadl9wqHrThWmQSbRZh/KDYwxLBZy5azuikmnZD4TT6pgMq4bvq 0cb73QI3RQTb4UXUR2eR25Gy/5gNcWBChoMH6KAWQdupdYCbk4nmFhaG9PGT7VQXsC uAIDcJmNbApMA== X-Nifty-SrcIP: [209.85.214.175] Received: by mail-pl1-f175.google.com with SMTP id e9so811056plh.3; Wed, 03 Feb 2021 16:34:34 -0800 (PST) X-Gm-Message-State: AOAM5314TvDG6rRnYiLhWKehrRtAPa+oPB+VH5XN+QBOkbHiVgIQJmrY Dd+pWvyji5x41Ri9pjoYXXR+4PnmhQbfu7SM4ro= X-Received: by 2002:a17:90a:184:: with SMTP id 4mr5642894pjc.87.1612398873991; Wed, 03 Feb 2021 16:34:33 -0800 (PST) MIME-Version: 1.0 References: <20210130004401.2528717-1-ndesaulniers@google.com> <20210130004401.2528717-3-ndesaulniers@google.com> <20210203233607.GI4020736@tucnak> In-Reply-To: <20210203233607.GI4020736@tucnak> From: Masahiro Yamada Date: Thu, 4 Feb 2021 09:33:56 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v7 2/2] Kbuild: implement support for DWARF v5 To: Jakub Jelinek Cc: Nick Desaulniers , Nathan Chancellor , Andrew Morton , Sedat Dilek , Linux Kernel Mailing List , clang-built-linux , Linux Kbuild mailing list , linux-arch , Fangrui Song , Caroline Tice , Nick Clifton , Yonghong Song , Jiri Olsa , Andrii Nakryiko , Arnaldo Carvalho de Melo , Arvind Sankar Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 4, 2021 at 8:36 AM Jakub Jelinek wrote: > > On Thu, Feb 04, 2021 at 08:06:12AM +0900, Masahiro Yamada wrote: > > GCC never outputs '.file 0', which is why > > this test is only needed for Clang, correct? > > No, GCC outputs .file 0 if it during configure time detected assembler that > supports it and doesn't have any of the known bugs related to it. > But that means kernel doesn't need to care because GCC already took care of > that. OK, then I am fine with the current code. Thanks for the clarification. -- Best Regards Masahiro Yamada