ld.lld: error: undefined symbol: memcpy

kernel test robot
2023-03-08T21:02:01Z

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 63355b9884b3d1677de6bd1517cd2b8a9bf53978
commit: 36be5cba99f6f9984a9a9f0454f95a38f4184d3e kasan: treat meminstrinsic as builtins in uninstrumented files
date: 6 days ago
config: powerpc-randconfig-r036-20230305 (https://download.01.org/0day-ci/archive/20230309/202303090422.ss2Hbm4f-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
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 powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=36be5cba99f6f9984a9a9f0454f95a38f4184d3e
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 36be5cba99f6f9984a9a9f0454f95a38f4184d3e
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303090422.ss2Hbm4f-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: memcpy
>>> referenced by xmon.c:1896 (arch/powerpc/xmon/xmon.c:1896)
>>> arch/powerpc/xmon/xmon.o:(prregs) in archive vmlinux.a
>>> referenced by zstd_compress.c:4814 (lib/zstd/compress/zstd_compress.c:4814)
>>> lib/zstd/compress/zstd_compress.o:(ZSTD_createCDict_advanced2) in archive vmlinux.a
>>> referenced by zstd_compress.c:4910 (lib/zstd/compress/zstd_compress.c:4910)
>>> lib/zstd/compress/zstd_compress.o:(ZSTD_initStaticCDict) in archive vmlinux.a
>>> referenced 5 more times
--
>> ld.lld: error: undefined symbol: memset
>>> referenced by slab_common.c:579 (mm/slab_common.c:579)
>>> mm/slab_common.o:(kmem_dump_obj) in archive vmlinux.a
>>> referenced by kasan_test.c:558 (mm/kasan/kasan_test.c:558)
>>> mm/kasan/kasan_test.o:(kmalloc_oob_in_memset) in archive vmlinux.a
>>> referenced by kasan_test.c:505 (mm/kasan/kasan_test.c:505)
>>> mm/kasan/kasan_test.o:(kmalloc_oob_memset_2) in archive vmlinux.a
>>> referenced 10 more times

--
0-DAY CI Kernel Test Service