sigaction sigaltstack sigblock siggetmask sigmask signal sigpause
sigpending sigprocmask sigreturn sigsetmask sigsuspend sigvec socket
socketcall socketpair ssetmask statfs stime stty swapoff swapon
-syscalls sysctl sysfs sysinfo syslog times
+syscalls sysctl sysfs sysinfo times
ulimit umount uname ustat vfork vhangup wait3
wait4 write writev