benchmark: return error when fail

benchmarks/coremark/src/core_main.c

@@ -333,7 +333,7 @@ MAIN_RETURN_TYPE main(int argc, char *argv[]) {
 	/* And last call any target specific code for finalizing */
 	portable_fini(&(results[0].port));
 
-	return MAIN_RETURN_VAL;
+	return total_errors;
 }
 
 

benchmarks/dhrystone/dry.c

@@ -944,7 +944,7 @@ int main ()
       880900 / (int)User_Time * NUMBER_OF_RUNS/ 500000);
   printf("                   vs. 100000 Marks (i7-7700K @ 4.20GHz)\n");
 
-  return 0;
+  return (pass ? 0 : 1);
 }
 
 

benchmarks/microbench/src/bench.c

@@ -149,7 +149,7 @@ int main(const char *args) {
   }
   printf("Scored time: %s ms\n", format_time(score_time));
   printf("Total  time: %s ms\n", format_time(total_time));
-  return 0;
+  return (pass ? 0 : 1);
 }
 
 // Libraries