[kbuild-all] Re: Error: kernelrelease not valid - run 'make prepare' to update it

On Wed, Aug 11, 2021 at 12:19 PM Randy Dunlap <rdunlap(a)infradead.org&gt; wrote: > > On 8/10/21 8:16 PM, kernel test robot wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 9e723c5380c6e14fb91a8b6950563d040674afdb >> commit: ba64beb17493a4bfec563100c86a462a15926f24 kbuild: check the minimum assembler version in Kconfig >> date: 4 months ago >> config: riscv-randconfig-r025-20210810 (attached as .config) >> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d39ebdae674c8efc84ebe8dc32716ec353220530) >> 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... >> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout ba64beb17493a4bfec563100c86a462a15926f24 >> # save the attached .config to linux build tree >> mkdir build_dir >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=riscv prepare >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <lkp(a)intel.com&gt; >> >> All errors (new ones prefixed by >>): >> >>>> Error: kernelrelease not valid - run 'make prepare' to update it >> -- >> clang --target=riscv64-linux-gnu -no-integrated-as --prefix=riscv64-linux-gnu- -Werror=unknown-warning-option: unknown assembler invoked >> scripts/Kconfig.include:50: Sorry, this assembler is not supported. >> make[3]: *** [scripts/kconfig/Makefile:63: syncconfig] Error 1 >> make[2]: *** [Makefile:617: syncconfig] Error 2 >> make[1]: *** [Makefile:726: include/config/auto.conf.cmd] Error 2 >> make[1]: Failed to remake makefile 'include/config/auto.conf.cmd'. >> make[1]: Failed to remake makefile 'include/config/auto.conf'. >>>> Error: kernelrelease not valid - run 'make prepare' to update it >> make[1]: Target 'prepare' not remade because of errors. >> make: *** [Makefile:215: __sub-make] Error 2 >> make: Target 'prepare' not remade because of errors. > > Yes, I have noticed this one and a few other ('static') make targets that > should not need a .config file. I have a note to myself to ask about these, > so thanks for bringing it up. I think it is unrelated. The 0-day bot has already shown the real reason of the error: clang --target=riscv64-linux-gnu -no-integrated-as --prefix=riscv64-linux-gnu- -Werror=unknown-warning-option: unknown assembler invoked scripts/Kconfig.include:50: Sorry, this assembler is not supported. This happens when the proper toolchains are not found. That is, make.cross passed CROSS_COMPILE=riscv64-linux-gnu- to the make command line, but riscv64-linux-gnu binutils are not installed on the system. Without installing binutils-riscv64-linux-gnu, I can see a similar error log.