linux-kernel - [madvenka786:orc_v2 7/20] arch/x86/kernel/setup.c:1243: undefined reference to `unwind

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Date:   Mon, 23 May 2022 06:20:52 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [madvenka786:orc_v2 7/20] arch/x86/kernel/setup.c:1243: undefined
 reference to `unwind_init'

tree:   https://github.com/madvenka786/linux orc_v2
head:   ed9a1d5c036130a53c639eb712485e3d13ab4372
commit: a4c6af5b74f86f69cebc1b18d8a31a3beff7cd8e [7/20] objtool: Reorganize ORC kernel code
config: i386-randconfig-a004-20220523 (https://download.01.org/0day-ci/archive/20220523/202205230628.BFRpX4yZ-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-1) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/madvenka786/linux/commit/a4c6af5b74f86f69cebc1b18d8a31a3beff7cd8e
        git remote add madvenka786 https://github.com/madvenka786/linux
        git fetch --no-tags madvenka786 orc_v2
        git checkout a4c6af5b74f86f69cebc1b18d8a31a3beff7cd8e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 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: arch/x86/kernel/setup.o: in function `setup_arch':
>> arch/x86/kernel/setup.c:1243: undefined reference to `unwind_init'


vim +1243 arch/x86/kernel/setup.c

ee9f8fce996408 arch/x86/kernel/setup.c  Josh Poimboeuf 2017-07-24  1242  
ee9f8fce996408 arch/x86/kernel/setup.c  Josh Poimboeuf 2017-07-24 @1243  	unwind_init();
^1da177e4c3f41 arch/i386/kernel/setup.c Linus Torvalds 2005-04-16  1244  }
5649b7c30316a5 arch/x86/kernel/setup.c  Ingo Molnar    2008-09-16  1245  

:::::: The code at line 1243 was first introduced by commit
:::::: ee9f8fce99640811b2b8e79d0d1dbe8bab69ba67 x86/unwind: Add the ORC unwinder

:::::: TO: Josh Poimboeuf <jpoimboe@...hat.com>
:::::: CC: Ingo Molnar <mingo@...nel.org>

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