Re: Error loading xdp program that worked with bpf_load
Jesper Dangaard Brouer <[email protected]>
| Newsgroups | org.kernel.vger.xdp-newbies |
|---|---|
| Message-ID | <20200611125952.3527dfdb@carbon> |
(Cross-posting to iovisor-dev) Seeking input from BPF-llvm developers. How come Clang/LLVM 10+ is generating incompatible BTF-info in ELF file, and downgrading to LLVM-9 fixes the issue ? On Wed, 10 Jun 2020 14:50:27 -0700 Elerion <[email protected]> wrote: > Never mind, I fixed it by downgrading to Clang 9. > > It appears to be an issue with Clang/LLVM 10+ > > https://github.com/cilium/ebpf/issues/43 > > On Wed, Jun 10, 2020 at 2:38 PM Toke Høiland-Jørgensen <[email protected]> wrote: > > > > Elerion <[email protected]> writes: > > > > > [69] FUNC xdp_program type_id=68 vlen != 0 > > > > 'vlen != 0' is the error. Not sure why you hit that; what's the output > > of 'bpftool btf dump file yourprog.o' ? > > > > -Toke > > -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer