Corpus for timerfd_create:

Coverage	Program
490	perf_event_open-timerfd_create-ppoll
409	perf_event_open-timerfd_create-timerfd_settime
337	perf_event_open-timerfd_create-timerfd_gettime
323	timerfd_create-newfstatat-setresuid-timerfd_settime
73	prlimit64-timerfd_create
25	setresuid-timerfd_create
9	timerfd_create