linux-kernel - [ammarfaizi2-block:crng/random/jd/vdso 9/9] vgetrandom.c:undefined reference to `_

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Date:   Wed, 3 Aug 2022 08:24:21 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Jason A. Donenfeld" <zx2c4@...nel.org>
Cc:     kbuild-all@...ts.01.org, Ammar Faizi <ammarfaizi2@...weeb.org>,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:crng/random/jd/vdso 9/9] vgetrandom.c:undefined
 reference to `__memset'

tree:   https://github.com/ammarfaizi2/linux-block crng/random/jd/vdso
head:   29d7baa1e13b4304df93126e0c8baf56584b720a
commit: 29d7baa1e13b4304df93126e0c8baf56584b720a [9/9] random: implement getrandom() in vDSO
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220803/202208030854.seELtKRV-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/ammarfaizi2/linux-block/commit/29d7baa1e13b4304df93126e0c8baf56584b720a
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block crng/random/jd/vdso
        git checkout 29d7baa1e13b4304df93126e0c8baf56584b720a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All error/warnings (new ones prefixed by >>):

   ld: arch/x86/entry/vdso/vgetrandom.o: in function `__vdso_getrandom':
>> vgetrandom.c:(.text+0x50b): undefined reference to `__memset'
   objdump: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file
--
>> ld: arch/x86/entry/vdso/vgetrandom-x32.o: warning: relocation against `__memset' in read-only section `.text'
   ld: arch/x86/entry/vdso/vgetrandom-x32.o: relocation R_X86_64_PC32 against undefined symbol `__memset' can not be used when making a shared object; recompile with -fPIC
   ld: final link failed: bad value
   objdump: 'arch/x86/entry/vdso/vdsox32.so.dbg': No such file

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