[esmil:visionfive 2/49] string.c:undefined reference to `_mcount'

[esmil:visionfive 2/49] string.c:undefined reference to `_mcount'

[kernel test robot]

tree:   https://github.com/esmil/linux visionfive
head:   575362a88f9e6ef14a1a35eb7bd1593745cf019e
commit: 6a48862f530a593cadaab50ae4006b3a70a112e6 [2/49] riscv: optimized memcpy
config: riscv-buildonly-randconfig-r001-20220703 (https://download.01.org/0day-ci/archive/20220705/202207050658.KhrLDT6s-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.3.0
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://github.com/esmil/linux/commit/6a48862f530a593cadaab50ae4006b3a70a112e6
        git remote add esmil https://github.com/esmil/linux
        git fetch --no-tags esmil visionfive
        git checkout 6a48862f530a593cadaab50ae4006b3a70a112e6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   riscv64-linux-ld: arch/riscv/purgatory/purgatory.ro: in function `.L355':
>> string.c:(.text+0x20e0): undefined reference to `_mcount'

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