libposix: implement gettimeofday

qa/lib/newlib/040-gettimeofday.c

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <sys/time.h>
+
+int main (int argc, char** argv) {
+	struct timeval tvalBefore, tvalAfter;
+	long delta;
+
+	gettimeofday (&tvalBefore, NULL);
+	int i =0;
+	while (i < 10000)
+		i++;
+
+	gettimeofday (&tvalAfter, NULL);
+
+	// Changed format to long int (%ld), changed time calculation
+
+	delta = ((tvalAfter.tv_sec - tvalBefore.tv_sec)*1000000L
+		   +tvalAfter.tv_usec) - tvalBefore.tv_usec;
+	printf("Time in microseconds: %ld microseconds\n", delta);
+
+	if(delta > 0)
+		return 0;
+	return 1;
+}