linux-kernel - [jpoimboe:s390 2/2] arch/s390/boot/startup.c:86: undefined reference to `__vmlinux_relocs_64

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Date:   Sun, 4 Sep 2022 16:10:17 +0800
From:   kernel test robot <lkp@...el.com>
To:     Josh Poimboeuf <jpoimboe@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [jpoimboe:s390 2/2] arch/s390/boot/startup.c:86: undefined reference
 to `__vmlinux_relocs_64_start'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git s390
head:   707138feb116e8b8d987cadee6f2048b1ee8c631
commit: 707138feb116e8b8d987cadee6f2048b1ee8c631 [2/2] s390: Compile relocatable kernel without -fPIE
config: s390-randconfig-r014-20220904
compiler: s390-linux-gcc (GCC) 12.1.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git/commit/?id=707138feb116e8b8d987cadee6f2048b1ee8c631
        git remote add jpoimboe https://git.kernel.org/pub/scm/linux/kernel/git/jpoimboe/linux.git
        git fetch --no-tags jpoimboe s390
        git checkout 707138feb116e8b8d987cadee6f2048b1ee8c631
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 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 >>):

   s390-linux-ld: arch/s390/boot/startup.o: in function `kaslr_adjust_relocs':
>> arch/s390/boot/startup.c:86: undefined reference to `__vmlinux_relocs_64_start'
>> s390-linux-ld: arch/s390/boot/startup.c:87: undefined reference to `__vmlinux_relocs_64_end'
>> s390-linux-ld: arch/s390/boot/startup.c:87: undefined reference to `__vmlinux_relocs_64_end'


vim +86 arch/s390/boot/startup.c

    77	
    78	static void kaslr_adjust_relocs(unsigned long offset)
    79	{
    80		int *reloc;
    81		unsigned long min_addr = vmlinux.default_lma;
    82		unsigned long max_addr = min_addr + vmlinux.image_size;
    83		long loc;
    84	
    85		/* Adjust R_390_64 relocations */
  > 86		for (reloc = __vmlinux_relocs_64_start;
  > 87		     reloc < __vmlinux_relocs_64_end && *reloc;
    88		     reloc++) {
    89			loc = (long)*reloc + offset;
    90	
    91			if (loc < min_addr || loc > max_addr)
    92				error("64-bit relocation outside of kernel!\n");
    93	
    94			*(u64 *)loc += offset;
    95		}
    96	}
    97	

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

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