Corpus for tgkill:

Coverage	Program
596	perf_event_open-ptrace$pokeuser-socket$netlink-tgkill
571	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-tgkill
245	perf_event_open-getpgrp-tgkill
188	perf_event_open-getpgrp-tgkill
126	perf_event_open-gettid-tgkill