-#define sleep(x) (smpi_trace_set_call_location(__FILE__, __LINE__), smpi_sleep(x))
-#define usleep(x) (smpi_trace_set_call_location(__FILE__, __LINE__), smpi_usleep(x))
+#define sleep(x) (smpi_trace_set_call_location(__FILE__, __LINE__, "sleep"), smpi_sleep(x))
+#define usleep(x) (smpi_trace_set_call_location(__FILE__, __LINE__, "usleep"), smpi_usleep(x))