The issue is discovered for bpf selftest test_skb_cgroup.sh.
Currently we have,
$ ./test_skb_cgroup_id.sh
Wait for testing link-local IP to become available ... OK
Object has unknown BTF type: 13!
[PASS]
In the above the BTF type 13 refers to BTF kind
BTF_KIND_FUNC_PROTO.
This patch added support of BTF_KIND_FUNC_PROTO and
BTF_KIND_FUNC during type parsing.
With this patch, I got
$ ./test_skb_cgroup_id.sh
Wait for testing link-local IP to become available ... OK
[PASS]
Signed-off-by: Yonghong Song <y...@fb.com>
---
lib/bpf.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/bpf.c b/lib/bpf.c
index 5e85cfc0..762f8857 100644
--- a/lib/bpf.c
+++ b/lib/bpf.c
@@ -2193,12 +2193,16 @@ static int bpf_btf_prep_type_data(struct bpf_elf_ctx
*ctx)
case BTF_KIND_ENUM:
type_cur += var_len * sizeof(struct btf_enum);
break;
+ case BTF_KIND_FUNC_PROTO:
+ type_cur += var_len * sizeof(struct btf_param);
+ break;
case BTF_KIND_TYPEDEF:
case BTF_KIND_PTR:
case BTF_KIND_FWD:
case BTF_KIND_VOLATILE:
case BTF_KIND_CONST:
case BTF_KIND_RESTRICT:
+ case BTF_KIND_FUNC:
break;
default:
fprintf(stderr, "Object has unknown BTF type: %u!\n",
kind);
--
2.17.1
