Error out if -s is used without --caches (instead of saying you must specify a CPU).
Error out if -s is used without --caches (instead of saying you must specify a
CPU).

andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin