Corpus for gettid:
Coverage Program
743 close-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-ioctl$SECCOMP_IOCTL_NOTIF_ADDFD-fork-sched_setattr-fork-getpid-syz_open_dev$vcsa-getpid-gettid-rt_tgsigqueueinfo
702 perf_event_open-openat$sndseq-ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE-gettid-ioctl$SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO-write$binfmt_elf64
50 gettid