This is due to using gcc-10.2. Building with gcc-9 is fine. This compiler support for GCOV will be disabled, see https://lkml.org/lkml/2020/9/2/934
So, marking this as Won't Fix because there is a workaround and 10.2 is not looking favourably for GCOV support at the moment. ** Changed in: linux (Ubuntu) Status: In Progress => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891288 Title: arm64 gcov in 5.8 breaks when trying to enable it To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1891288/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs