[PATCH v5 bpf-next 3/4] libbpf: introduce section "iter.s/" for sleepable bpf_iter program

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Sleepable iterator program have access to helper functions like bpf_d_path.

Acked-by: Yonghong Song <yhs@xxxxxx>
Acked-by: KP Singh <kpsingh@xxxxxxxxxx>
Signed-off-by: Song Liu <songliubraving@xxxxxx>
---
 tools/lib/bpf/libbpf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 2abbc38005684..903ccd7e93206 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -8555,6 +8555,11 @@ static const struct bpf_sec_def section_defs[] = {
 		.expected_attach_type = BPF_TRACE_ITER,
 		.is_attach_btf = true,
 		.attach_fn = attach_iter),
+	SEC_DEF("iter.s/", TRACING,
+		.expected_attach_type = BPF_TRACE_ITER,
+		.is_attach_btf = true,
+		.is_sleepable = true,
+		.attach_fn = attach_iter),
 	BPF_EAPROG_SEC("xdp_devmap/",		BPF_PROG_TYPE_XDP,
 						BPF_XDP_DEVMAP),
 	BPF_EAPROG_SEC("xdp_cpumap/",		BPF_PROG_TYPE_XDP,
-- 
2.24.1






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