Size    int64
	Blksize int32
	_       [4]byte
	Blocks  int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	Ino     uint64
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]uint8
	_      [5]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	_      [4]byte
	Start  int64
	Len    int64
	Pid    int32

	Size    int64
	Blksize int32
	_       int32
	Blocks  int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	_       [2]int32
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]int8
	_      [5]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	Start  int64
	Len    int64
	Pid    int32
	_      [4]byte
}

	Rdev    uint64
	Size    int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	Blksize int64
	Blocks  int64
	_       [3]int64
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]int8
	_      [5]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	Start  int64
	Len    int64
	Pid    int32
	_      [4]byte
}

	Size    int64
	Blksize int64
	Blocks  int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	_       uint64
	_       uint64
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]int8
	_      [5]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	Start  int64
	Len    int64
	Pid    int32
	_      int16
	_      [2]byte

	Rdev    uint64
	Size    int64
	Blksize int64
	Blocks  int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	_       [3]int64
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]int8
	_      [5]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	Start  int64
	Len    int64
	Pid    int32
	_      [4]byte
}

	_       uint16
	Size    int64
	Blksize int32
	Blocks  int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	Ino     uint64
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]int8
	_      [1]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	Start  int64
	Len    int64
	Pid    int32
}

	Size    int64
	Atim    Timespec
	Mtim    Timespec
	Ctim    Timespec
	Blksize uint32
	Pad4    uint32
	Blocks  int64
}

type Dirent struct {
	Ino    uint64
	Off    int64
	Reclen uint16
	Type   uint8
	Name   [256]int8
	_      [5]byte
}

type Flock_t struct {
	Type   int16
	Whence int16
	Start  int64
	Len    int64
	Pid    int32
	_      [4]byte
}

}

func direntReclen(buf []byte) (uint64, bool) {
	return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
}

func direntNamlen(buf []byte) (uint64, bool) {
	reclen, ok := direntReclen(buf)
	if !ok {
		return 0, false
	}
	return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
}

		slice[i] = uintptr(x)`,
	},
	// uint8 Handled separately.
}

func main() {
	log.SetFlags(0)
	log.SetPrefix("decgen: ")
	flag.Parse()
	if flag.NArg() != 0 {
		log.Fatal("usage: decgen [--output filename]")
	}
	var b bytes.Buffer
	fmt.Fprintf(&b, "// Code generated by go run decgen.go -output %s; DO NOT EDIT.\n", *output)
	fmt.Fprint(&b, header)
	printMaps(&b, "Array")
	fmt.Fprint(&b, "\n")

	return syscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, 0)
}

//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_read
//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_lseek
//sys	getcwd(buf []byte) (n int, err error)
//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error)
//sysnb fork() (pid int, err error)