On Wed, Jul 07, 2021 at 01:15:28AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y > head: 3909e2374335335c9504467caabc906d3f7487e4 > commit: defcc2b5e54a4724fb5733f802edf5dd596018b6 [7045/7049] lib/lz4: explicitly support in-place decompression > config: mips-randconfig-r036-20210706 (attached as .config) > compiler: mipsel-linux-gcc (GCC) 9.3.0 > 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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=defcc2b5e54a4724fb5733f802edf5dd596018b6 > git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git > git fetch --no-tags linux-stable-rc linux-5.4.y > git checkout defcc2b5e54a4724fb5733f802edf5dd596018b6 > # save the attached .config to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> Which is weird, does the preboot environment miss memmove() on mipsel? Just a guess, I may look into that myself later... Thanks, Gao Xiang > > All errors (new ones prefixed by >>): > > mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `LZ4_decompress_safe_withSmallPrefix': > decompress.c:(.text+0x220): undefined reference to `memmove' > mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `LZ4_decompress_fast_extDict': > decompress.c:(.text+0x694): undefined reference to `memmove' > >> mipsel-linux-ld: decompress.c:(.text+0x774): undefined reference to `memmove' > mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `LZ4_decompress_safe': > decompress.c:(.text+0xb88): undefined reference to `memmove' > mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `LZ4_decompress_safe_partial': > decompress.c:(.text+0x1078): undefined reference to `memmove' > mipsel-linux-ld: arch/mips/boot/compressed/decompress.o:decompress.c:(.text+0x12f8): more undefined references to `memmove' follow > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
