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31 Aug 2022 18:16:02 -0700 X-IronPort-AV: E=Sophos;i="5.93,279,1654585200"; d="scan'208";a="673613016" Received: from yuxiongj-mobl1.ccr.corp.intel.com (HELO [10.254.213.173]) ([10.254.213.173]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Aug 2022 18:16:00 -0700 Subject: Re: [kbuild-all] Re: powerpc-linux-objdump: Warning: Unrecognized form: 0x23 To: Nathan Chancellor , kernel test robot Cc: Kees Cook , llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Nick Desaulniers , Masahiro Yamada , Andrew Morton , Linux Memory Management List References: <202208311414.4OPuYS9K-lkp@intel.com> From: "Chen, Rong A" Message-ID: Date: Thu, 1 Sep 2022 09:15:58 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=PsnDfhjB; spf=softfail (imf30.hostedemail.com: 192.55.52.43 is neither permitted nor denied by domain of rong.a.chen@intel.com) smtp.mailfrom=rong.a.chen@intel.com; dmarc=fail reason="No valid SPF" header.from=intel.com (policy=none) ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1661994964; a=rsa-sha256; cv=none; b=Qf6os5a9lpvqTc48hdV4949kK6T/S9YVaDprsDR0M/k2NLaHuchqiZsFQ5VTAqIJLaAp7G yi4Xt9WPlnFamoDQTDPFc7quEmhMN6DuygNEAYU1qkbcn5NkWLcgm0/ZNVy5VoZ7tUMtet 5w0XqRC+FoLcTCPisjWNOSx0+fbARaU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1661994964; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=Ptu7nuD86AfoikSGkGtIy53c5rVsxgg3AYN4M9gKtoE=; b=YnqgfQhGmLs03eiKF7nVWzopr2iX9Far4I/WSOQ/HwbjrlMfSLS2Y9qWSZT2oq31Z428Ud jlV3ei587JuWbnMQ/7yHjIZIzOWi2Z3ZGQ6PLhcULMTIiGB2lc3gO40JZuuJA0cEN/E//a qNylaR+DceQ+yGISfJDwJ5/L/NRMMDc= X-Rspam-User: X-Rspamd-Queue-Id: 19E0180067 Authentication-Results: imf30.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=PsnDfhjB; spf=softfail (imf30.hostedemail.com: 192.55.52.43 is neither permitted nor denied by domain of rong.a.chen@intel.com) smtp.mailfrom=rong.a.chen@intel.com; dmarc=fail reason="No valid SPF" header.from=intel.com (policy=none) X-Stat-Signature: 1g3r71358wfns37u5517dagsahg9q8un X-Rspamd-Server: rspam11 X-HE-Tag: 1661994963-876603 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 8/31/2022 11:40 PM, Nathan Chancellor wrote: > On Wed, Aug 31, 2022 at 02:52:36PM +0800, kernel test robot wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: dcf8e5633e2e69ad60b730ab5905608b756a032f >> commit: f9b3cd24578401e7a392974b3353277286e49cee Kconfig.debug: make DEBUG_INFO selectable from a choice >> date: 5 months ago >> config: powerpc-buildonly-randconfig-r003-20220830 (https://download.01.org/0day-ci/archive/20220831/202208311414.4OPuYS9K-lkp@intel.com/config) >> compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project c7df82e4693c19e3fd2e25c83eb04d9deb7b7b59) >> reproduce (this is a W=1 build): >> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> # install powerpc cross compiling tool for clang build >> # apt-get install binutils-powerpc-linux-gnu >> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f9b3cd24578401e7a392974b3353277286e49cee >> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout f9b3cd24578401e7a392974b3353277286e49cee >> # save the config file >> mkdir build_dir && cp config build_dir/.config >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash >> >> If you fix the issue, kindly add following tag where applicable >> Reported-by: kernel test robot >> >> All warnings (new ones prefixed by >>): >> >>>> powerpc-linux-objdump: Warning: Unrecognized form: 0x23 > > Given this is clang 16.0.0 with > CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y, which uses DWARF5 by > default instead of DWARF4, it looks like older binutils not > understanding DWARF5. What version of binutils is being used by the bot? Hi Nathan, We're using binutils v2.38.90.20220713-2 ||/ Name Version Architecture Description +++-==============-==================-============-========================================== ii binutils 2.38.90.20220713-2 amd64 GNU assembler, linker and binary utilities Best Regards, Rong Chen > CONFIG_DEBUG_INFO_DWARF5 requires 2.35.2, it seems like it might be > worth trying to extend those dependencies to > CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT to avoid issues like this, > especially in lieu of Nick's series here, which is already codifying the > implicit default DWARF version of the compiler. > > https://lore.kernel.org/20220826181035.859042-1-ndesaulniers@google.com/ > > Cheers, > Nathan > _______________________________________________ > kbuild-all mailing list -- kbuild-all@lists.01.org > To unsubscribe send an email to kbuild-all-leave@lists.01.org >