}

	return prev, nil
}

//sysnb	rtSigprocmask(how int, set *Sigset_t, oldset *Sigset_t, sigsetsize uintptr) (err error) = SYS_RT_SIGPROCMASK

func PthreadSigmask(how int, set, oldset *Sigset_t) error {
	if oldset != nil {
		// Explicitly clear in case Sigset_t is larger than _C__NSIG.
		*oldset = Sigset_t{}
	}
	return rtSigprocmask(how, set, oldset, _C__NSIG/8)
}

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func rtSigprocmask(how int, set *Sigset_t, oldset *Sigset_t, sigsetsize uintptr) (err error) {
	_, _, e1 := RawSyscall6(SYS_RT_SIGPROCMASK, uintptr(how), uintptr(unsafe.Pointer(set)), uintptr(unsafe.Pointer(oldset)), uintptr(sigsetsize), 0, 0)