}

func setTimeval(sec, usec int64) Timeval {
	return Timeval{Sec: sec, Usec: usec}
}

func Ioperm(from int, num int, on int) (err error) {
	return ENOSYS
}

func Iopl(level int) (err error) {
	return ENOSYS
}

type stat_t struct {
	Dev        uint32
	Pad0       [3]int32
	Ino        uint64
	Mode       uint32
	Nlink      uint32
	Uid        uint32
	Gid        uint32

}

func setTimeval(sec, usec int64) Timeval {
	return Timeval{Sec: sec, Usec: usec}
}

func Ioperm(from int, num int, on int) (err error) {
	return ENOSYS
}

func Iopl(level int) (err error) {
	return ENOSYS
}

type stat_t struct {
	Dev        uint32
	Pad0       [3]int32
	Ino        uint64
	Mode       uint32
	Nlink      uint32
	Uid        uint32
	Gid        uint32

	sysFunc := "blockOnSystemStackInternal"
	nUser := bytes.Count(tb, []byte(userFunc))
	nSys := bytes.Count(tb, []byte(sysFunc))
	if nUser != 2 || nSys != 2 {
		t.Fatalf("want %d user stack frames in %s and %d system stack frames in %s, got %d and %d:\n%s", 2, userFunc, 2, sysFunc, nUser, nSys, string(tb))
	}

	// Traceback should not contain "unexpected SPWRITE" when
	// unwinding the system stacks.

	for {
		// Test if the accept4() is available.
		_, _, err := syscall.Accept4(0, syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC)
		if err == syscall.EINTR {
			continue
		}
		return err != syscall.ENOSYS
	}
})

// SupportTCPKeepAliveIdleIntvlCNT determines whether the TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT
// are available by checking the kernel version for Solaris 11.4.

}

func setTimeval(sec, usec int64) Timeval {
	return Timeval{Sec: sec, Usec: usec}
}

func Ioperm(from int, num int, on int) (err error) {
	return ENOSYS
}

func Iopl(level int) (err error) {
	return ENOSYS
}

func (r *PtraceRegs) PC() uint64 { return r.Psw.Addr }

func (r *PtraceRegs) SetPC(pc uint64) { r.Psw.Addr = pc }

func (iov *Iovec) SetLen(length int) {

	if !pidfdWorks() {
		return 0, false
	}

	return uintptr(*sysAttr.PidFD), true
}

func pidfdFind(pid int) (uintptr, error) {
	if !pidfdWorks() {
		return 0, syscall.ENOSYS
	}

	h, err := unix.PidFDOpen(pid, 0)
	if err != nil {
		return 0, convertESRCH(err)
	}
	return h, nil
}

// _P_PIDFD is used as idtype argument to waitid syscall.
const _P_PIDFD = 3

//sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
//sys	Truncate(path string, length int64) (err error)

func Ustat(dev int, ubuf *Ustat_t) (err error) {
	return ENOSYS
}

//sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)

	Max uint32
}

//sysnb	getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT

func Getrlimit(resource int, rlim *Rlimit) (err error) {
	err = Prlimit(0, resource, nil, rlim)
	if err != ENOSYS {
		return err
	}

	rl := rlimit32{}
	err = getrlimit(resource, &rl)
	if err != nil {
		return
	}

	if rl.Cur == rlimInf32 {
		rlim.Cur = rlimInf64
	} else {

const rlimInf32 = ^uint32(0)
const rlimInf64 = ^uint64(0)

func Getrlimit(resource int, rlim *Rlimit) (err error) {
	err = Prlimit(0, resource, nil, rlim)
	if err != ENOSYS {
		return err
	}

	rl := rlimit32{}
	err = getrlimit(resource, &rl)
	if err != nil {
		return
	}

	if rl.Cur == rlimInf32 {
		rlim.Cur = rlimInf64
	} else {

const rlimInf32 = ^uint32(0)
const rlimInf64 = ^uint64(0)

func Getrlimit(resource int, rlim *Rlimit) (err error) {
	err = Prlimit(0, resource, nil, rlim)
	if err != ENOSYS {
		return err
	}

	rl := rlimit32{}
	err = getrlimit(resource, &rl)
	if err != nil {
		return
	}

	if rl.Cur == rlimInf32 {
		rlim.Cur = rlimInf64
	} else {