// 32 bit size fields (and offset later) to signal that the
			// zip64 extra header should be used.
			b.uint32(uint32max) // compressed size
			b.uint32(uint32max) // uncompressed size

			// append a zip64 extra block to Extra
			var buf [28]byte // 2x uint16 + 3x uint64
			eb := writeBuf(buf[:])
			eb.uint16(zip64ExtraID)
			eb.uint16(24) // size = 3x uint64
			eb.uint64(h.UncompressedSize64)

	if name := hdr.PAXRecords[paxGNUSparseName]; name != "" {
		hdr.Name = name
	}
	size := hdr.PAXRecords[paxGNUSparseSize]
	if size == "" {
		size = hdr.PAXRecords[paxGNUSparseRealSize]
	}
	if size != "" {
		n, err := strconv.ParseInt(size, 10, 64)
		if err != nil {
			return nil, ErrHeader
		}
		hdr.Size = n
	}

	// Read the sparse map according to the appropriate format.
	if is1x0 {

		switch maker := v.maker.(type) {
		case makeReg:
			fw = &regFileWriter{w, maker.size}
			wantStr = maker.wantStr
		case makeSparse:
			if !validateSparseEntries(maker.sph, maker.size) {
				t.Fatalf("invalid sparse map: %v", maker.sph)
			}
			spd := invertSparseEntries(maker.sph, maker.size)
			fw = &regFileWriter{w, maker.makeReg.size}
			fw = &sparseFileWriter{fw, spd, 0}
			wantStr = maker.makeReg.wantStr

pkg syscall (linux-arm-cgo), type SysProcAttr struct, GidMappings []SysProcIDMap
pkg syscall (linux-arm-cgo), type SysProcAttr struct, UidMappings []SysProcIDMap
pkg syscall (linux-arm-cgo), type SysProcIDMap struct
pkg syscall (linux-arm-cgo), type SysProcIDMap struct, ContainerID int
pkg syscall (linux-arm-cgo), type SysProcIDMap struct, HostID int
pkg syscall (linux-arm-cgo), type SysProcIDMap struct, Size int

	typedef unsigned long int mp_limb_t;

	typedef struct
	{
		int _mp_alloc;
		int _mp_size;
		mp_limb_t *_mp_d;
	} __mpz_struct;

	typedef __mpz_struct mpz_t[1];

Cgo generates:

	type _C_int int32
	type _C_mp_limb_t uint64
	type _C___mpz_struct struct {
		_mp_alloc _C_int;
		_mp_size _C_int;
		_mp_d *_C_mp_limb_t;
	}
	type _C_mpz_t [1]_C___mpz_struct

pkg os, method (FileMode) String() string
pkg os, type FileInfo interface { IsDir, ModTime, Mode, Name, Size, Sys }
pkg os, type FileInfo interface, IsDir() bool
pkg os, type FileInfo interface, ModTime() time.Time
pkg os, type FileInfo interface, Mode() FileMode
pkg os, type FileInfo interface, Name() string
pkg os, type FileInfo interface, Size() int64
pkg os, type FileInfo interface, Sys() interface{}
pkg os, type FileMode uint32

pkg archive/zip, method (*Writer) SetComment(string) error
pkg archive/zip, type FileHeader struct, Modified time.Time
pkg archive/zip, type FileHeader struct, NonUTF8 bool
pkg bufio, method (*Reader) Size() int
pkg bufio, method (*Writer) Size() int
pkg crypto/tls, const ECDSAWithSHA1 = 515
pkg crypto/tls, const ECDSAWithSHA1 SignatureScheme
pkg crypto/x509, const CANotAuthorizedForExtKeyUsage = 9

pkg syscall (linux-arm-cgo), type Statfs_t struct, Bsize int32
pkg syscall (linux-arm-cgo), type Statfs_t struct, Ffree uint64
pkg syscall (linux-arm-cgo), type Statfs_t struct, Files uint64
pkg syscall (linux-arm-cgo), type Statfs_t struct, Flags int32
pkg syscall (linux-arm-cgo), type Statfs_t struct, Frsize int32
pkg syscall (linux-arm-cgo), type Statfs_t struct, Fsid Fsid