Corpus for timerfd_gettime:

Coverage	Program
576	timerfd_create-timerfd_gettime
452	timerfd_create-clock_gettime-timerfd_settime-timerfd_gettime
109	timerfd_create-timerfd_settime-perf_event_open-timerfd_gettime
33	openat$vcsa-timerfd_gettime
21	timerfd_gettime