BTF_MAX_STR_OFFSET
set = strset__new(BTF_MAX_STR_OFFSET, btf->strs_data, btf->hdr->str_len);
if (!hdr->str_len || hdr->str_len - 1 > BTF_MAX_STR_OFFSET || end[-1]) {
d->strs_set = strset__new(BTF_MAX_STR_OFFSET, NULL, 0);