Commit aca228cd authored by KP Singh's avatar KP Singh Committed by Alexei Starovoitov
Browse files

tools/libbpf: Add support for BPF_MODIFY_RETURN 



Signed-off-by: default avatarKP Singh <kpsingh@google.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarAndrii Nakryiko <andriin@fb.com>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200304191853.1529-6-kpsingh@chromium.org
parent 6ba43b76

tools/lib/bpf/libbpf.c

+4 −0
Original line number Diff line number Diff line
@@ -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,

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