Re: [PATCH bpf-next 5/7] tools/libbpf: Add support for BPF_MODIFY_RETURN

[Andrii Nakryiko]

On Tue, Mar 3, 2020 at 6:12 AM KP Singh <kpsingh@xxxxxxxxxxxx> wrote:
>
> From: KP Singh <kpsingh@xxxxxxxxxx>
>
> Signed-off-by: KP Singh <kpsingh@xxxxxxxxxx>
> ---

Acked-by: Andrii Nakryiko <andriin@xxxxxx>

>  tools/lib/bpf/libbpf.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
> index f8c4042e5855..223be01dc466 100644
> --- a/tools/lib/bpf/libbpf.c
> +++ b/tools/lib/bpf/libbpf.c
> @@ -6288,6 +6288,10 @@ static const struct bpf_sec_def section_defs[] = {
>                 .expected_attach_type = BPF_TRACE_FENTRY,
>                 .is_attach_btf = true,
>                 .attach_fn = attach_trace),
> +       SEC_DEF("fmod_ret/", TRACING,
> +               .expected_attach_type = BPF_MODIFY_RETURN,
> +               .is_attach_btf = true,
> +               .attach_fn = attach_trace),
>         SEC_DEF("fexit/", TRACING,
>                 .expected_attach_type = BPF_TRACE_FEXIT,
>                 .is_attach_btf = true,
> --
> 2.20.1
>