netdev - [PATCH bpf-next v3 2/3] libbpf: support detecting and attaching of writable tracepoint program

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Message-ID: <20210928140734.1274261-3-houtao1@huawei.com>
Date:   Tue, 28 Sep 2021 22:07:33 +0800
From:   Hou Tao <houtao1@...wei.com>
To:     Alexei Starovoitov <ast@...nel.org>
CC:     Yonghong Song <yhs@...com>, Daniel Borkmann <daniel@...earbox.net>,
        "Andrii Nakryiko" <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>, <netdev@...r.kernel.org>,
        <bpf@...r.kernel.org>, <houtao1@...wei.com>
Subject: [PATCH bpf-next v3 2/3] libbpf: support detecting and attaching of writable tracepoint program

Program on writable tracepoint is BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE,
but its attachment is the same as BPF_PROG_TYPE_RAW_TRACEPOINT.

Signed-off-by: Hou Tao <houtao1@...wei.com>
---
 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 ef5db34bf913..b874c0179084 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -7976,6 +7976,10 @@ static const struct bpf_sec_def section_defs[] = {
 		.attach_fn = attach_raw_tp),
 	SEC_DEF("raw_tp/", RAW_TRACEPOINT,
 		.attach_fn = attach_raw_tp),
+	SEC_DEF("raw_tracepoint.w/", RAW_TRACEPOINT_WRITABLE,
+		.attach_fn = attach_raw_tp),
+	SEC_DEF("raw_tp.w/", RAW_TRACEPOINT_WRITABLE,
+		.attach_fn = attach_raw_tp),
 	SEC_DEF("tp_btf/", TRACING,
 		.expected_attach_type = BPF_TRACE_RAW_TP,
 		.is_attach_btf = true,
-- 
2.29.2