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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 716F0C433E0 for ; Wed, 10 Jun 2020 01:49:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A84D20734 for ; Wed, 10 Jun 2020 01:49:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726105AbgFJBtc (ORCPT ); Tue, 9 Jun 2020 21:49:32 -0400 Received: from mga02.intel.com ([134.134.136.20]:10602 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725944AbgFJBtc (ORCPT ); Tue, 9 Jun 2020 21:49:32 -0400 IronPort-SDR: XMFm2SxKSaSsZ1omAUHnM8rO+0teZvhdE3vLOGb202AQeIBKwIvkYfpi//dAiZmtKUIk2/5njx rDEdepoS+RDA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2020 18:49:31 -0700 IronPort-SDR: 7IE9Xm1dr2r/7B0uXaUz4X2dz2o/donAdiUVE/ylTM3suFOnZNDQUqaZsfmRhXj0mcx2sJ+5Qp Som0PwdGL7/g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,494,1583222400"; d="scan'208";a="314359275" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.3]) ([10.239.13.3]) by FMSMGA003.fm.intel.com with ESMTP; 09 Jun 2020 18:49:29 -0700 Subject: Re: [kbuild-all] Re: gcc-5: error: -gz is not supported in this configuration To: Fangrui Song Cc: Nick Desaulniers , kernel test robot , Masahiro Yamada , kbuild-all@lists.01.org, LKML References: <202006092115.nevT7m8D%lkp@intel.com> <20200609174954.cckelwl6etwztmhv@google.com> <05c88916-7d91-ad1a-1ea6-15167a994a0b@intel.com> <20200610005830.s6gus7r3umwgzozk@google.com> From: Rong Chen Message-ID: Date: Wed, 10 Jun 2020 09:49:01 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20200610005830.s6gus7r3umwgzozk@google.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/10/20 8:58 AM, Fangrui Song wrote: > On 2020-06-10, Rong Chen wrote: >> >> >> On 6/10/20 1:49 AM, Fangrui Song wrote: >>> On 2020-06-09, Nick Desaulniers wrote: >>>> On Tue, Jun 9, 2020 at 6:12 AM kernel test robot >>>> wrote: >>>>> >>>>> tree: >>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >>>>> master >>>>> head:   abfbb29297c27e3f101f348dc9e467b0fe70f919 >>>>> commit: 10e68b02c861ccf2b3adb59d3f0c10dc6b5e3ace Makefile: support >>>>> compressed debug info >>>>> date:   12 days ago >>>>> config: x86_64-randconfig-r032-20200609 (attached as .config) >>>>> compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010 >>>>> reproduce (this is a W=1 build): >>>>>         git checkout 10e68b02c861ccf2b3adb59d3f0c10dc6b5e3ace >>>>>         # save the attached .config to linux build tree >>>>>         make W=1 ARCH=x86_64 >>>>> >>>>> If you fix the issue, kindly add following tag as appropriate >>>>> Reported-by: kernel test robot >>>>> >>>>> All errors (new ones prefixed by >>, old ones prefixed by <<): >>>>> >>>>>>> gcc-5: error: -gz is not supported in this configuration >>>> >>>> Hmm...I wonder if the feature detection is incomplete?  I suspect it's >>>> possible to not depend on zlib. >>>> >>>>> make[2]: *** [scripts/Makefile.build:277: scripts/mod/empty.o] >>>>> Error 1 >>>>> make[2]: Target '__build' not remade because of errors. >>>>> make[1]: *** [Makefile:1169: prepare0] Error 2 >>>>> make[1]: Target 'prepare' not remade because of errors. >>>>> make: *** [Makefile:185: __sub-make] Error 2 >>> >>> The output of gcc-5 -v --version on that machine may help. The >>> convoluted gcc_cv_ld_compress_de logic in gcc/configure.ac may be >>> related, but I can't find any mistake that our >>> CONFIG_DEBUG_INFO_COMPRESSED conditions may make. >> >> Hi Fangrui, >> >> Here is the output: >> >> $gcc-5 -v --version >> Using built-in specs. >> COLLECT_GCC=gcc-5 >> COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper >> gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010 >> Copyright (C) 2015 Free Software Foundation, Inc. >> This is free software; see the source for copying conditions. There >> is NO >> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR >> PURPOSE. >> >> >> Target: x86_64-linux-gnu >> Configured with: ../src/configure -v --with-pkgversion='Ubuntu >> 5.5.0-12ubuntu1' >> --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs >> --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++ --prefix=/usr >> --program-suffix=-5 --enable-shared --enable-linker-build-id >> --libexecdir=/usr/lib --without-included-gettext >> --enable-threads=posix --libdir=/usr/lib --enable-nls >> --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug >> --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new >> --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx >> --enable-plugin --enable-default-pie --with-system-zlib >> --enable-objc-gc --enable-multiarch --disable-werror >> --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 >> --enable-multilib --with-tune=generic --enable-checking=release >> --build=x86_64-linux-gnu --host=x86_64-linux-gnu >> --target=x86_64-linux-gnu >> Thread model: posix >> gcc version 5.5.0 20171010 (Ubuntu 5.5.0-12ubuntu1) >> COLLECT_GCC_OPTIONS='-v' '--version' '-mtune=generic' '-march=x86-64' >>  /usr/lib/gcc/x86_64-linux-gnu/5/cc1 -quiet -v -imultiarch >> x86_64-linux-gnu help-dummy -quiet -dumpbase help-dummy >> -mtune=generic -march=x86-64 -auxbase help-dummy -version --version >> -fstack-protector-strong -Wformat -Wformat-security -o /tmp/ccqnZumV.s >> GNU C11 (Ubuntu 5.5.0-12ubuntu1) version 5.5.0 20171010 >> (x86_64-linux-gnu) >>         compiled by GNU C version 5.5.0 20171010, GMP version 6.1.2, >> MPFR version 4.0.1, MPC version 1.1.0 >> warning: MPFR header version 4.0.1 differs from library version 4.0.2. >> GGC heuristics: --param ggc-min-expand=100 --param >> ggc-min-heapsize=131072 >> COLLECT_GCC_OPTIONS='-v' '--version' '-mtune=generic' '-march=x86-64' >>  as -v --64 --version -o /tmp/ccRPgs9J.o /tmp/ccqnZumV.s >> GNU assembler version 2.34 (x86_64-linux-gnu) using BFD version (GNU >> Binutils for Ubuntu) 2.34 >> GNU assembler (GNU Binutils for Ubuntu) 2.34 >> Copyright (C) 2020 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 later. >> This program has absolutely no warranty. >> This assembler was configured for a target of `x86_64-linux-gnu'. >> COMPILER_PATH=/usr/lib/gcc/x86_64-linux-gnu/5/:/usr/lib/gcc/x86_64-linux-gnu/5/:/usr/lib/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/5/:/usr/lib/gcc/x86_64-linux-gnu/ >> >> LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/5/:/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/:/lib/x86_64-linux-gnu/:/lib/../lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-linux-gnu/5/../../../:/lib/:/usr/lib/ >> >> COLLECT_GCC_OPTIONS='-v' '--version' '-mtune=generic' '-march=x86-64' >>  /usr/lib/gcc/x86_64-linux-gnu/5/collect2 -plugin >> /usr/lib/gcc/x86_64-linux-gnu/5/liblto_plugin.so >> -plugin-opt=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper >> -plugin-opt=-fresolution=/tmp/ccJLhs3y.res >> -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s >> -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc >> -plugin-opt=-pass-through=-lgcc_s --sysroot=/ --build-id >> --eh-frame-hdr -m elf_x86_64 --hash-style=gnu --as-needed >> -dynamic-linker /lib64/ld-linux-x86-64.so.2 -pie -z now -z relro >> --version >> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o >> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/crti.o >> /usr/lib/gcc/x86_64-linux-gnu/5/crtbeginS.o >> -L/usr/lib/gcc/x86_64-linux-gnu/5 >> -L/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu >> -L/usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib >> -L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu >> -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/5/../../.. >> /tmp/ccRPgs9J.o -lgcc --push-state --as-needed -lgcc_s --pop-state >> -lc -lgcc --push-state --as-needed -lgcc_s --pop-state >> /usr/lib/gcc/x86_64-linux-gnu/5/crtend.o >> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/crtn.o >> collect2 version 5.5.0 20171010 >> /usr/bin/ld -plugin /usr/lib/gcc/x86_64-linux-gnu/5/liblto_plugin.so >> -plugin-opt=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper >> -plugin-opt=-fresolution=/tmp/ccJLhs3y.res >> -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s >> -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc >> -plugin-opt=-pass-through=-lgcc_s --sysroot=/ --build-id >> --eh-frame-hdr -m elf_x86_64 --hash-style=gnu --as-needed >> -dynamic-linker /lib64/ld-linux-x86-64.so.2 -pie -z now -z relro >> --version >> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/Scrt1.o >> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/crti.o >> /usr/lib/gcc/x86_64-linux-gnu/5/crtbeginS.o >> -L/usr/lib/gcc/x86_64-linux-gnu/5 >> -L/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu >> -L/usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib >> -L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu >> -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/5/../../.. >> /tmp/ccRPgs9J.o -lgcc --push-state --as-needed -lgcc_s --pop-state >> -lc -lgcc --push-state --as-needed -lgcc_s --pop-state >> /usr/lib/gcc/x86_64-linux-gnu/5/crtend.o >> /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/crtn.o >> GNU ld (GNU Binutils for Ubuntu) 2.34 >> Copyright (C) 2020 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) a later >> version. >> This program has absolutely no warranty. >> >> Best Regards, >> Rong Chen > > Hi Rong, > > binutils (both GNU as and GNU ld) is new. It oughts to support > --compress-debug-sections=zlib . The failure looks strange to me. > > Can you extract the gcc-5 command line building scripts/mod/empty.o > and run it manually? $ gcc-5 -Wp,-MMD,scripts/mod/.empty.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/5/include -I./arch/x86/include -I./arch/x86/include/generated  -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Wno-format-security -std=gnu89 -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup -mtune=generic -mno-red-zone -mcmodel=kernel -DCONFIG_X86_X32_ABI -Wno-sign-compare -fno-asynchronous-unwind-tables -mindirect-branch=thunk-extern -mindirect-branch-register -fno-jump-tables -fno-delete-null-pointer-checks -Os --param=allow-store-data-races=0 -Wframe-larger-than=2048 -fstack-protector-strong -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-var-tracking-assignments -g -gdwarf-4 -femit-struct-debug-baseonly -fno-var-tracking -gz=zlib -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -DKBUILD_MODFILE='"scripts/mod/empty"' -DKBUILD_BASENAME='"empty"' -DKBUILD_MODNAME='"empty"' -c -o scripts/mod/empty.o scripts/mod/empty.c gcc-5: error: -gz is not supported in this configuration > Also run gcc-5 -g -gz=zlib a.c -c on a trivial file and check whether > `readelf -WS a.o` > has the section flag C ("compressed"). $ gcc-5 -g -gz=zlib a.c -c gcc-5: error: -gz is not supported in this configuration and no a.o generated. Best Regards, Rong Chen