linux-kernel - [ardb:arm64-scs-patching-v3 3/3] ld.lld: error: undefined symbol: scs

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Message-ID: <202206141211.OYR97qyn-lkp@intel.com>
Date:   Tue, 14 Jun 2022 12:35:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [ardb:arm64-scs-patching-v3 3/3] ld.lld: error: undefined symbol:
 scs_patch

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git arm64-scs-patching-v3
head:   0da13e3a0d40aa97f6f59e72d5c72fdd3475dc2d
commit: 0da13e3a0d40aa97f6f59e72d5c72fdd3475dc2d [3/3] arm64: implement dynamic shadow call stack for Clang
config: arm64-randconfig-r001-20220613 (https://download.01.org/0day-ci/archive/20220614/202206141211.OYR97qyn-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c97436f8b6e2718286e8496faf53a2c800e281cf)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=0da13e3a0d40aa97f6f59e72d5c72fdd3475dc2d
        git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
        git fetch --no-tags ardb arm64-scs-patching-v3
        git checkout 0da13e3a0d40aa97f6f59e72d5c72fdd3475dc2d
        # 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=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: scs_patch
   >>> referenced by module.c:537 (arch/arm64/kernel/module.c:537)
   >>> kernel/module.o:(module_finalize) in archive arch/arm64/built-in.a
--
>> ld.lld: error: undefined symbol: dynamic_scs_enabled
   >>> referenced by module.c
   >>> kernel/module.o:(__jump_table+0x28) in archive arch/arm64/built-in.a

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp