Corpus for keyctl$join:

Coverage	Program
396	perf_event_open-keyctl$join
396	perf_event_open-keyctl$join
389	setresuid-keyctl$join-keyctl$join
377	keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join-keyctl$join
364	add_key$keyring-keyctl$restrict_keyring-keyctl$join
206	keyctl$join-keyctl$join
190	newfstatat-setresuid-keyctl$join-keyctl$join
172	munmap-keyctl$join