From: Pu Lehui <pulehui@xxxxxxxxxx>
When redirecting the split BTF to the vmlinux base BTF, we need to mark
the distilled base struct/union members of split BTF structs/unions in
id_map with BTF_IS_EMBEDDED. This indicates that these types must match
both name and size later. Therefore, we need to traverse the entire
split BTF, which involves traversing type IDs from nr_dist_base_types to
nr_types. However, the current implementation uses an incorrect
traversal end type ID, so let's correct it.
Fixes: 19e00c897d50 ("libbpf: Split BTF relocation")
Signed-off-by: Pu Lehui <pulehui@xxxxxxxxxx>
---
v2: make commit description more sense.
tools/lib/bpf/btf_relocate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/btf_relocate.c b/tools/lib/bpf/btf_relocate.c
index b72f83e15156..53d1f3541bce 100644
--- a/tools/lib/bpf/btf_relocate.c
+++ b/tools/lib/bpf/btf_relocate.c
@@ -212,7 +212,7 @@ static int btf_relocate_map_distilled_base(struct btf_relocate *r)
* need to match both name and size, otherwise embedding the base
* struct/union in the split type is invalid.
*/
- for (id = r->nr_dist_base_types; id < r->nr_split_types; id++) {
+ for (id = r->nr_dist_base_types; id < r->nr_dist_base_types + r->nr_split_types; id++) {
err = btf_mark_embedded_composite_type_ids(r, id);
if (err)
goto done;
--
2.34.1
