add trace when the main NR UE thread ends and when NR UE sets oai_exit variable

executables/nr-ue.c

@@ -1091,7 +1091,7 @@ void *UE_thread(void *arg)
     stream_status = STREAM_STATUS_SYNCED;
     tx_wait_for_dlsch[slot] = 0;
   }
-
+  LOG_W(NR_PHY, "UE main thread is ending\n");
   return NULL;
 }
 

executables/nr-uesoftmodem.c

@@ -139,10 +139,7 @@ int create_tasks_nrue(uint32_t ue_nb) {
 void exit_function(const char *file, const char *function, const int line, const char *s, const int assert)
 {
   int CC_id;
-
-  if (s != NULL) {
-    printf("%s:%d %s() Exiting OAI softmodem: %s\n",file,line, function, s);
-  }
+  LOG_W(NR_PHY, "called by: %s:%d %s() Exiting OAI softmodem: %s\n", file, line, function, s ? s : "no msg");
 
   oai_exit = 1;
 
@@ -496,9 +493,8 @@ int main(int argc, char **argv)
   printf("Entering ITTI signals handler\n");
   printf("TYPE <CTRL-C> TO TERMINATE\n");
   itti_wait_tasks_end(trigger_deregistration);
-  printf("Returned from ITTI signal handler\n");
-  oai_exit=1;
-  printf("oai_exit=%d\n",oai_exit);
+  LOG_W(NR_PHY, "Returned from ITTI signal handler\n");
+  oai_exit = 1;
 
   if (ouput_vcd)
     vcd_signal_dumper_close();