Corpus for tgkill:

Coverage	Program
656	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-getpgrp-tgkill
224	perf_event_open-getpgrp-tgkill
206	perf_event_open-getpgrp-tgkill
206	perf_event_open-setsockopt$inet6_int-getpgrp-tgkill
132	perf_event_open-gettid-tgkill
91	gettid-seccomp$SECCOMP_SET_MODE_STRICT-tgkill