216 	struct btf *base_btf;  member
468 		btf = btf->base_btf;  in btf_nr_types()
630 		btf = btf->base_btf;  in btf_name_offset_valid()
650 		btf = btf->base_btf;  in btf_str_by_offset()
712 		btf = btf->base_btf;  in btf_type_by_id()
1456 			if (!btf->base_btf) {  in btf_add_type()
1770 		btf = btf->base_btf;  in btf_resolved_type_id()
1786 		btf = btf->base_btf;  in btf_resolved_type_size()
3992 	env->log_type_id = btf->base_btf ? btf->start_id : 1;  in btf_check_all_metas()
4091 	for (i = btf->base_btf ? 0 : 1; i < btf->nr_types; i++) {  in btf_check_all_types()
4130 	if (!env->btf->base_btf && !hdr->type_len) {  in btf_parse_type_sec()
4159 	if (btf->base_btf && !hdr->str_len)  in btf_parse_str_sec()
4165 	if (!btf->base_btf && start[0]) {  in btf_parse_str_sec()
4297 	if (!btf->base_btf && btf_data_size == hdr->hdr_len) {  in btf_parse_hdr()
4612 	struct btf *btf = NULL, *base_btf;  in btf_parse_module()  local
4615 	base_btf = bpf_get_btf_vmlinux();  in btf_parse_module()
4616 	if (IS_ERR(base_btf))  in btf_parse_module()
4617 		return base_btf;  in btf_parse_module()
4618 	if (!base_btf)  in btf_parse_module()
4635 	btf->base_btf = base_btf;  in btf_parse_module()
4636 	btf->start_id = base_btf->nr_types;  in btf_parse_module()
4637 	btf->start_str_off = base_btf->hdr.str_len;  in btf_parse_module()