urandlib_read_without_sema
l = bpf_program__attach_usdt(skel->progs.urandlib_read_without_sema,
skel->links.urandlib_read_without_sema = l;
int BPF_USDT(urandlib_read_without_sema, int iter_num, int iter_cnt, int buf_sz)
void urandlib_read_without_sema(int iter_num, int iter_cnt, int read_sz);
urandlib_read_without_sema(i, count, BUF_SIZE);