[PATCH bpf-next v2 2/3] libbpf: support detecting and attaching of writable tracepoint program
From: Hou Tao <hidden>
Date: 2021-09-18 01:56:07
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
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 da65a1666a5e..981fcdd95bdc 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_writable/", RAW_TRACEPOINT_WRITABLE, + .attach_fn = attach_raw_tp), + SEC_DEF("raw_tp_writable/", 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