raise
sigaction
sigaddset
sigaltstack
sigblock
sigdelset
sigemptyset
sigfillset
siggetmask
siginterrupt
sigismember
signal
signalfd
sigpause
sigpending
sigprocmask
sigqueue
sigreturn
sigsetmask
sigstack
sigsuspend
sigtimedwait
sigvec
sigwait
sigwaitinfo
