prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000080))
getpgid(0x0)
gettid()
getpgrp(0x0)
rt_tgsigqueueinfo(0x0, 0x0, 0x0, 0x0)
gettid()