Hi Matthias, Sorry, the code I suggested introduced a slight behavior change. With this patch, cc-option adds a space before the returned option. Please see line 46 of arch/sh/Makefile. ifeq ($(cflags-y),) Now cflags-y contains a space, so this conditional is now evaluated as false, which was actually true without the patch. This is the cause of the build error. Could you remove whitespaces before $(1) and $(2) in cc-option? Also, please fix hostcc-option as well. Thanks! 2017-06-18 15:58 GMT+09:00 kbuild test robot <lkp@xxxxxxxxx>: > Hi Matthias, > > [auto build test ERROR on tip/auto-latest] > [also build test ERROR on v4.12-rc5 next-20170616] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Matthias-Kaehlcke/kbuild-Add-__cc-option-macro/20170616-082252 > config: sh-sh7710voipgw_defconfig (attached as .config) > compiler: sh4-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 > reproduce: > wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # save the attached .config to linux build tree > make.cross ARCH=sh > > All errors (new ones prefixed by >>): > > {standard input}: Assembler messages: >>> {standard input}:672: Error: invalid operands for opcode > {standard input}:673: Error: opcode not valid for this cpu variant > {standard input}:674: Error: opcode not valid for this cpu variant > {standard input}:675: Error: invalid operands for opcode > {standard input}:1900: Error: invalid operands for opcode > {standard input}:1901: Error: opcode not valid for this cpu variant > {standard input}:1902: Error: opcode not valid for this cpu variant > {standard input}:1903: Error: invalid operands for opcode > {standard input}:2067: Error: invalid operands for opcode > {standard input}:2068: Error: opcode not valid for this cpu variant > {standard input}:2069: Error: opcode not valid for this cpu variant > {standard input}:2070: Error: invalid operands for opcode > {standard input}:2570: Error: invalid operands for opcode > {standard input}:2571: Error: opcode not valid for this cpu variant > {standard input}:2572: Error: opcode not valid for this cpu variant > {standard input}:2573: Error: invalid operands for opcode > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html