Re: [PATCH bpf-next v2] bpftool: make libbfd optional

Alexei Starovoitov
2018-11-17T15:03:21Z

On Mon, Nov 12, 2018 at 1:44 PM Stanislav Fomichev <sdf@google.com> wrote:
>
> Make it possible to build bpftool without libbfd. libbfd and libopcodes are
> typically provided in dev/dbg packages (binutils-dev in debian) which we
> usually don't have installed on the fleet machines and we'd like a way to have
> bpftool version that works without installing any additional packages.
> This excludes support for disassembling jit-ted code and prints an error if
> the user tries to use these features.
>
> Tested by:
> cat > FEATURES_DUMP.bpftool <<EOF
> feature-libbfd=0
> feature-disassembler-four-args=1
> feature-reallocarray=0
> feature-libelf=1
> feature-libelf-mmap=1
> feature-bpf=1
> EOF
> FEATURES_DUMP=$PWD/FEATURES_DUMP.bpftool make
> ldd bpftool | grep libbfd
>
> Signed-off-by: Stanislav Fomichev <sdf@google.com>

applied, thanks