[xen-tip:linux-next 2/6] ld.lld: error: undefined symbol: __memset

[kernel test robot <lkp@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git linux-next
head:   67d618348f8f1ce11b1d76f3303a28097f165ac9
commit: 99cf26a6143c22ee6c5b940a0e5e027a99e5524a [2/6] x86/asm, x86/boot: 
Expose inline memcmp
config: x86_64-randconfig-005-20260514 
(https://download.01.org/0day-ci/archive/20260514/202605140922.q7IlUv7o-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 
87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): 
(https://download.01.org/0day-ci/archive/20260514/202605140922.q7IlUv7o-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: 
https://lore.kernel.org/oe-kbuild-all/202605140922.q7IlUv7o-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __memset
   >>> referenced by string.c
   >>>               
arch/x86/purgatory/purgatory.ro:(__UNIQUE_ID_addressable___memset_0)
--
>> ld.lld: error: undefined symbol: __memmove
   >>> referenced by string.c
   >>>               
arch/x86/purgatory/purgatory.ro:(__UNIQUE_ID_addressable___memmove_1)

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