Any chance someone could get the recipes fixed for the mainline builds, which also need the -fcf-protection=none retpoline flags added since they're being built using "schroot -c eoan-amd64"?
(I'm not sure who needs to be looped in for that to happen.) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in 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] Status in gcc-9 package in Ubuntu: Invalid Status in linux package in Ubuntu: Fix Released Status in nvidia-graphics-drivers-430 package in Ubuntu: Fix Released Status in virtualbox package in Ubuntu: Won't Fix Status in xtables-addons package in Ubuntu: Won't Fix Bug description: Compiling kernels & kernel modules fails due to these errors: ./include/linux/compiler.h:193:1: error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible (This happens with any kernel modules.) This appears to be due to the changes in 9.1.0-3ubuntu1 enabling -fcf- protection by default on 19.10's gcc-9. Switching to gcc-8 allows compilation to proceed. WORKAROUND: sudo ln -fs gcc-8 /usr/bin/gcc To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-9/+bug/1830961/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
