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tools/libbpf: Add support for BPF_MODIFY_RETURN 

Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200304191853.1529-6-kpsingh@chromium.org
This commit is contained in:
KP Singh 2020-03-04 20:18:51 +01:00 committed by Alexei Starovoitov
parent 6ba43b761c
commit aca228cd33
1 changed files with 4 additions and 0 deletions
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4
tools/lib/bpf/libbpf.c
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@ -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,