Re: [PATCH bpf-next v3 2/3] libbpf: support detecting and attaching of writable tracepoint program
From: Andrii Nakryiko <hidden>
Date: 2021-09-28 23:11:37
Also in:
bpf
On Tue, Sep 28, 2021 at 6:53 AM Hou Tao [off-list ref] wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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),
Unfortunately I just refactored these SEC_DEF() definitions, please rebase because this won't apply cleanly anymore. Otherwise it looks good to me.
SEC_DEF("tp_btf/", TRACING,
.expected_attach_type = BPF_TRACE_RAW_TP,
.is_attach_btf = true,
--
2.29.2