Corpus for getpgid:

Coverage	Program
1022	prctl$PR_CAP_AMBIENT-getpgid-perf_event_open-sched_setaffinity-perf_event_open-getpgid-perf_event_open-fork-wait4-shmctl$IPC_SET-perf_event_open-creat-write-openat$autofs-ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT
146	sched_setaffinity-perf_event_open-socket$inet6_tcp-setsockopt$inet6_tcp_TCP_REPAIR-connect$inet6-setsockopt$inet6_tcp_TCP_REPAIR-perf_event_open-sendmmsg$inet6-fcntl$getown-perf_event_open-ioctl$sock_SIOCGIFINDEX-getpgrp-bind$inet6-sendmsg$ETHTOOL_MSG_FEATURES_SET-prctl$PR_SCHED_CORE-getpgid-getpgid
24	prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-getpgid