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-rw-r--r--tools/lib/bpf/libbpf.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 42bdba4efd0c..8b0c3246097f 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -3145,7 +3145,7 @@ static bool btf_needs_sanitization(struct bpf_object *obj)
!has_layout;
}
-static struct btf *bpf_object__sanitize_btf(struct bpf_object *obj, struct btf *orig_btf)
+struct btf *bpf_object__sanitize_btf(struct bpf_object *obj, struct btf *orig_btf)
{
bool has_func_global = kernel_supports(obj, FEAT_BTF_GLOBAL_FUNC);
bool has_datasec = kernel_supports(obj, FEAT_BTF_DATASEC);
@@ -5203,12 +5203,20 @@ bool kernel_supports(const struct bpf_object *obj, enum kern_feature_id feat_id)
*/
return true;
- if (obj->token_fd)
+ if (obj->feat_cache)
return feat_supported(obj->feat_cache, feat_id);
return feat_supported(NULL, feat_id);
}
+/* Used in testing to simulate missing features. */
+void bpf_object_set_feat_cache(struct bpf_object *obj, struct kern_feature_cache *cache)
+{
+ if (obj->feat_cache)
+ free(obj->feat_cache);
+ obj->feat_cache = cache;
+}
+
static bool map_is_reuse_compat(const struct bpf_map *map, int map_fd)
{
struct bpf_map_info map_info;