tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0e9bcda5d286f4a26a5407bb38f55c55b453ecfb commit: d0a3ac549f389c1511a4df0d7638536305205d20 ubsan: enable for all*config builds date: 6 weeks ago config: mips-randconfig-r025-20210130 (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/torvalds/linux.git/commit/?id=d0a3ac549f389c1511a4df0d7638536305205d20 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout d0a3ac549f389c1511a4df0d7638536305205d20 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `get_bits': decompress.c:(.text+0x288): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x2a0): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x2bc): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x2dc): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `get_next_block': decompress.c:(.text+0xdb8): undefined reference to `__ubsan_handle_out_of_bounds' >> mipsel-linux-ld: decompress.c:(.text+0xdd4): undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0xde8): undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0xe3c): undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0xe4c): undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o:decompress.c:(.text+0xe64): more undefined references to `__ubsan_handle_out_of_bounds' follow mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `get_next_block': decompress.c:(.text+0x1000): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x1020): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x1044): undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x1074): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x1098): undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `decompress_kernel': decompress.c:(.text+0x14c4): undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: decompress.c:(.text+0x14ec): undefined reference to `__ubsan_handle_out_of_bounds' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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