On Sun, Jan 12, 2020 at 8:33 PM Zong Li <zong.li@xxxxxxxxxx> wrote: > > I'm not quite familiar with btf, so I have no idea why there are two > weak symbols be added in 8580ac9404f6 ("bpf: Process in-kernel BTF") I can explain what these weak symbols are for, but that won't change the fact that compiler or linker are buggy. The weak symbols should work in all cases and compiler should pick correct relocation. In this case it sounds that compiler picked relative relocation and failed to reach zero from that address.