Corpus for clock_gettime:

Coverage	Program
1421	creat-perf_event_open-unlink-clock_gettime-recvmmsg-mknod
360	clock_gettime
92	io_pgetevents-clock_gettime
90	futex-clock_gettime
65	timer_create-clock_gettime
64	getsockopt$inet_IP_XFRM_POLICY-clock_gettime
62	clock_gettime
60	clock_gettime
35	clock_gettime
33	clock_gettime