With my modifications I was able to build and boot a Linux v5.7-rc6+ kernel on Debian/testing AMD64. root at iniza:~# cat /proc/version Linux version 5.7.0-rc6-4-amd64-clang (sedat.dilek at gmail.com@iniza) (clang version 10.0.1rc1, LLD 10.0.1rc1) #4~bullseye+dileks1 SMP 2020-05-22 - Sedat -