Same issue with: Ubuntu 19.10 xtables-addons-dkms 3.2-1ubuntu2 linux kernel 5.0.0-17 and 5.0.0-20 gcc-9: 9.1.0-6ubuntu2
The compilation complains that: echo >&2; \ echo >&2 " ERROR: Kernel configuration is invalid."; \ echo >&2 " include/generated/autoconf.h or include/config/auto.conf are missing.";\ echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ but both files are present. Later on, I get a huge number of similar errors like the following: ./include/linux/compiler.h:192:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible Switching to gcc-8 works around this critical issue. ** Attachment added: "/var/crash/xtables-addons-dkms.0.crash" https://bugs.launchpad.net/ubuntu/+source/xtables-addons/+bug/1830961/+attachment/5275942/+files/xtables-addons-dkms.0.crash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1830961 Title: Kernels & kernel drivers fail to build with gcc-9 [error: ‘-mindirect- branch’ and ‘-fcf-protection’ are not compatible] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-9/+bug/1830961/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
