On Fri, Feb 26, 2021 at 12:23 PM Ilya Leoshkevich <iii@xxxxxxxxxxxxx> wrote: > > Some BPF programs compiled on s390 fail to load, because s390 > arch-specific linux headers contain float and double types. > > Introduce support for such types by representing them using the new > BTF_KIND_FLOAT. This series deals with libbpf, bpftool, in-kernel BTF > parser as well as selftests and documentation. > > There are also pahole and LLVM parts: > > * https://github.com/iii-i/dwarves/commit/btf-kind-float-v2 > * https://reviews.llvm.org/D83289 ... > v6 -> v7: John suggested to add a comment explaining why sanitization > does not preserve the type name, as well as what effect it has > on running the code on the older kernels. > Yonghong has asked to add a comment explaining why we are not > checking the alignment very precisely in the kernel. > John suggested to add a bpf_core_field_size test (commit #9). Applied without patch 9, since it crashes current llvm. Please work with Yonghong to land llvm support and resubmit the selftest along with an update to selftest/bpf/README.rst that needs to explain which llvm commit is needed to pass the test. Thanks!
