[bpf-next,v2,5/7] tools/libbpf: Add support for BPF_MODIFY_RETURN
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Message ID 20200304015528.29661-6-kpsingh@chromium.org
State New
Headers show
Series
  • Introduce BPF_MODIFY_RET tracing progs
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Commit Message

KP Singh March 4, 2020, 1:55 a.m. UTC
From: KP Singh <kpsingh@google.com>

Signed-off-by: KP Singh <kpsingh@google.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
---
 tools/lib/bpf/libbpf.c | 4 ++++
 1 file changed, 4 insertions(+)

Patch
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diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index f8c4042e5855..223be01dc466 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -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,