tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: bfe91da29bfad9941d5d703d45e29f0812a20724 commit: 8d58f222e85f01da0c0e1fc1e77986c86de889e2 ubsan: disable UBSAN_ALIGNMENT under COMPILE_TEST date: 9 weeks ago config: mips-randconfig-r034-20200707 (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 git checkout 8d58f222e85f01da0c0e1fc1e77986c86de889e2 # 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 `xz_crc32': >> arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `lzma_len': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:626: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:631: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `dec_vli': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:187: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `lzma_main': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:740: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:741: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `lzma_literal_probs': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:575: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:576: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:577: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `lzma_main': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:744: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `lzma_match': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:660: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:670: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `rc_bittree_reverse': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:545: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `lzma_rep_match': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:692: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:693: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:694: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:700: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:703: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `crc32_validate': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:352: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `xz_dec_lzma2_run': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:979: undefined reference to `__ubsan_handle_load_invalid_value' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_lzma2.c:997: undefined reference to `__ubsan_handle_load_invalid_value' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `memeq': >> arch/mips/boot/compressed/../../../../lib/decompress_unxz.c:184: undefined reference to `__ubsan_handle_type_mismatch_v1' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `xz_crc32': >> arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `dec_block_header': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:522: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:526: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:533: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:539: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `xz_crc32': >> arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' >> mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' >> mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' >> mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `xz_dec_run': arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:775: undefined reference to `__ubsan_handle_load_invalid_value' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `xz_crc32': >> arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' >> mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:54: undefined reference to `__ubsan_handle_type_mismatch_v1' mipsel-linux-ld: arch/mips/boot/compressed/decompress.o: in function `xz_crc32_init': arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:43: undefined reference to `__ubsan_handle_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c:43: undefined reference to `__ubsan_handle_type_mismatch_v1' mipsel-linux-ld: arch/mips/boot/compressed/ashldi3.o: in function `__ashldi3': arch/mips/boot/compressed/ashldi3.c:22: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/ashldi3.c:24: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/ashldi3.c:26: undefined reference to `__ubsan_handle_shift_out_of_bounds' mipsel-linux-ld: arch/mips/boot/compressed/ashldi3.c:27: undefined reference to `__ubsan_handle_shift_out_of_bounds' vim +54 arch/mips/boot/compressed/../../../../lib/xz/xz_crc32.c 24fa0402a9b6a5 Lasse Collin 2011-01-12 48 24fa0402a9b6a5 Lasse Collin 2011-01-12 49 XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc) 24fa0402a9b6a5 Lasse Collin 2011-01-12 50 { 24fa0402a9b6a5 Lasse Collin 2011-01-12 51 crc = ~crc; 24fa0402a9b6a5 Lasse Collin 2011-01-12 52 24fa0402a9b6a5 Lasse Collin 2011-01-12 53 while (size != 0) { 24fa0402a9b6a5 Lasse Collin 2011-01-12 @54 crc = xz_crc32_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8); :::::: The code at line 54 was first introduced by commit :::::: 24fa0402a9b6a537e87e38341e78b7da86486846 decompressors: add XZ decompressor module :::::: TO: Lasse Collin <lasse.collin@xxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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