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31 Aug 2022 22:52:48 -0700 X-IronPort-AV: E=Sophos;i="5.93,280,1654585200"; d="scan'208";a="673691146" Received: from rongch2-mobl.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 22:52:45 -0700 Subject: Re: [kbuild-all] Re: powerpc-linux-objdump: Warning: Unrecognized form: 0x23 To: Christophe Leroy , Nathan Chancellor Cc: kernel test robot , 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> <8d2c3aef-aa4f-1f4d-dc89-622554ffda31@intel.com> <9d77cb93-2eff-d87d-6554-1636d5e7d5ec@csgroup.eu> From: "Chen, Rong A" Message-ID: <0acfb209-a792-a47b-0261-9fb29824e4b9@intel.com> Date: Thu, 1 Sep 2022 13:52:42 +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: <9d77cb93-2eff-d87d-6554-1636d5e7d5ec@csgroup.eu> Content-Type: text/plain; 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s=arc-20220608; d=hostedemail.com; t=1662011570; a=rsa-sha256; cv=none; b=glGmIQ1wK9LSUE/PDYXtd1fItdo0DND68rkmuzShp/dY0h06aoSf3sPeCKjM0Qbprt4t8G porgrJmDO5AOY57XZFRSwCHWh3mQVq6JUolRErktvUbj62kj5no/wlUUuSBrAGdYysBN0L UQW4WkXNYixbCg1htWXkplV4kNtqUD8= X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 8BF2E10002E X-Rspam-User: Authentication-Results: imf14.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=EwYE7VfI; spf=softfail (imf14.hostedemail.com: 192.55.52.151 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: e5c6gwbxu45d894jtt9f16ryz859u9pp X-HE-Tag: 1662011569-966144 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 9/1/2022 1:45 PM, Christophe Leroy wrote: > > > Le 01/09/2022 à 06:59, Chen, Rong A a écrit : >> >> >> On 9/1/2022 10:03 AM, Nathan Chancellor wrote: >>> Hi Rong, >>> >>> On Thu, Sep 01, 2022 at 09:15:58AM +0800, Chen, Rong A wrote: >>>> >>>> >>>> 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 >>> >>> Thanks for chiming in! This looks like the output of 'dpkg -l', right? I >> >> Hi Nathan, >> >> oh, yes, I misunderstood, it's not related to this package. >> >>> noticed on second glance that the tuple for the objdump warning above is >>> 'powerpc-linux-', which leads me to believe that a kernel.org toolchain >>> (or a self compiled one) is being used. I would expect the tuple to be >>> 'powerpc-linux-gnu-' if Debian's package was being used. Is that >>> possible? >> >> you are right, we used a self-compiled toolchain, we'll try the binutils >> from debian package. > > Can you first tell us the version you are using ? > > powerpc-linux-objdump -v > > That will tell you the version. Hi Christophe, the version is v2.38: $ ./powerpc-linux-objdump -v GNU objdump (GNU Binutils) 2.38 Copyright (C) 2022 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or (at your option) any later version. This program has absolutely no warranty. Best Regards, Rong Chen > > Thanks > Christophe > _______________________________________________ > kbuild-all mailing list -- kbuild-all@lists.01.org > To unsubscribe send an email to kbuild-all-leave@lists.01.org >