SYS_PPOLL          = 109 // { int sys_ppoll(struct pollfd *fds, u_int nfds, const struct timespec *ts, const sigset_t *mask); }
	SYS_PSELECT        = 110 // { int sys_pselect(int nd, fd_set *in, fd_set *ou, fd_set *ex, const struct timespec *ts, const sigset_t *mask); }
	SYS_SIGSUSPEND     = 111 // { int sys_sigsuspend(int mask); }
	SYS_SENDSYSLOG     = 112 // { int sys_sendsyslog(const char *buf, size_t nbyte, int flags); }

	SYS_PPOLL          = 109 // { int sys_ppoll(struct pollfd *fds, u_int nfds, const struct timespec *ts, const sigset_t *mask); }
	SYS_PSELECT        = 110 // { int sys_pselect(int nd, fd_set *in, fd_set *ou, fd_set *ex, const struct timespec *ts, const sigset_t *mask); }
	SYS_SIGSUSPEND     = 111 // { int sys_sigsuspend(int mask); }
	SYS_SENDSYSLOG     = 112 // { int sys_sendsyslog(const char *buf, size_t nbyte, int flags); }

        if (parameters.size() > 1 && parameters.get(parameters.size() - 2).getKind() == ParameterKindInfo.KOTLIN_DEFAULT_MASK) {
            // push the default mask equal to zero, meaning that no parameters have the default values
            code.add("// The interceptor expects a Kotlin default mask, add a zero argument:\n");
            code.addStatement("$N._ICONST_0()", METHOD_VISITOR_FIELD);
        }

			next[uint8(i)] = 1
		}
	}

	pos := 0
	step := (tableSize >> 1) + (tableSize >> 3) + 3
	mask := tableSize - 1
	for i, n := range norm {
		for j := 0; j < int(n); j++ {
			table[pos].sym = uint8(i)
			pos = (pos + step) & mask
			for pos > highThreshold {
				pos = (pos + step) & mask
			}
		}
	}
	if pos != 0 {
		return r.makeError(off, "FSE count error")
	}

	// Too many bits to fit in this word. Write the current word
	// out and move on to the next word.

	data := h.mask | bits<<h.valid       // mask for this word
	h.mask = bits >> (ptrBits - h.valid) // leftover for next word
	h.valid += valid - ptrBits           // have h.valid+valid bits, writing ptrBits of them

	// Flush mask to the memory bitmap.
	idx := h.offset / (ptrBits * goarch.PtrSize)
	m := uintptr(1)<<h.low - 1

		return fmt.Errorf("expected valid IPv4 loopback address in CIDR %s; found %v", cidr, ipp.Addr())
	}

	ones := ipp.Bits()
	if ones < 8 || ones > 32 {
		return fmt.Errorf("expected CIDR %s to have mask in range [8, 32]; found %v", cidr, ones)
	}
	return nil

//sys	fanotifyMark(fd int, flags uint, mask uint64, dirFd int, pathname *byte) (err error)

func FanotifyMark(fd int, flags uint, mask uint64, dirFd int, pathname string) (err error) {
	if pathname == "" {
		return fanotifyMark(fd, flags, mask, dirFd, nil)
	}
	p, err := BytePtrFromString(pathname)
	if err != nil {
		return err
	}
	return fanotifyMark(fd, flags, mask, dirFd, p)
}

type WaitStatus uint32

const (
	mask  = 0x7F
	core  = 0x80
	shift = 8

	exited  = 0
	stopped = 0x7F
)

func (w WaitStatus) Exited() bool { return w&mask == exited }

func (w WaitStatus) ExitStatus() int {
	if w&mask != exited {
		return -1
	}
	return int(w >> shift)
}

func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }

  // perNodeHostBits defines the number of host bits to be configured per node.
  // A subnet mask determines how much of the address is used for network bits
  // and host bits. For example an IPv4 address of 192.168.0.0/24, splits the
  // address into 24 bits for the network portion and 8 bits for the host portion.
  // To allocate 256 IPs, set this field to 8 (a /24 mask for IPv4 or a /120 for IPv6).
  // Minimum value is 4 (16 IPs).
  // This field is immutable.

TEXT ·And64(SB), NOSPLIT, $0-20
	MOVL	ptr+0(FP), BP
	// DI:SI = v
	MOVL	val_lo+4(FP), SI
	MOVL	val_hi+8(FP), DI
	// DX:AX = *addr
	MOVL	0(BP), AX
	MOVL	4(BP), DX
casloop:
	// CX:BX = DX:AX (*addr) & DI:SI (mask)
	MOVL	AX, BX
	MOVL	DX, CX
	ANDL	SI, BX
	ANDL	DI, CX
	LOCK
	CMPXCHG8B	0(BP)
	JNZ casloop
	MOVL	AX, ret_lo+12(FP)
	MOVL	DX, ret_hi+16(FP)
	RET