Changed the sprintf() call to snprintf() and added an if-statement to…

… check whether the number of characters intended to be written to the destination buffer exceed the size of the buffer. This prevents GCC 8.3.0 from warning that the destination buffer may not be large enough to store the contents of the source buffers. These changes were tested on the Intel Haswell architecture.

src/components/perf_event_uncore/tests/perf_event_uncore_cbox.c

@@ -126,7 +126,10 @@ int main( int argc, char **argv ) {
 			/* Default domain should work */
 
 			/* Add our uncore event */
-			sprintf(uncore_event,"%s%d::%s",uncore_base,j,event_name);
+			retval = snprintf(uncore_event, BUFSIZ, "%s%d::%s",uncore_base,j,event_name);
+            if( retval >= BUFSIZ ){
+                fprintf(stderr,"Event full name \"%s%d::%s\" has been truncated to \"%s\"\n",uncore_base,j,event_name, uncore_event);
+            }
 			retval = PAPI_add_named_event(EventSet[j][i], uncore_event);
 			if (retval != PAPI_OK) {
 				max_cbox=j;