b      *bio.Reader
	err    error
	offset int64
	limit  int64
	tmp    [256]byte
}

func (r *objReader) init(f *os.File) {
	r.a = &Archive{f, nil}
	r.offset, _ = f.Seek(0, io.SeekCurrent)
	r.limit, _ = f.Seek(0, io.SeekEnd)
	f.Seek(r.offset, io.SeekStart)
	r.b = bio.NewReader(f)
}

// error records that an error occurred.
// It returns only the first error, so that an error

	if err != nil {
		return nil, err
	}
	f.Symbols, err = removeAuxSymbols(f.COFFSymbols, f.StringTable)
	if err != nil {
		return nil, err
	}

	// Seek past file header.
	_, err = sr.Seek(base+int64(binary.Size(f.FileHeader)), io.SeekStart)
	if err != nil {
		return nil, err
	}

	// Read optional header.

	MOVM.IA	[R2-R6], (R1)
	MOVW	trap+0(FP), R0	// syscall num
	SWI		$0
	MOVW	R0, r1+28(FP)
	MOVW	R0, r2+32(FP)
	MOVW	R0, err+36(FP)
	RET

//func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
TEXT ·seek(SB),NOSPLIT,$20-36
	NO_LOCAL_POINTERS
	MOVW	$newoffset_lo+20(FP), R6
	MOVW	R6, sysargs-20(SP)	// dest for return value
	MOVW	$fd+4(FP), R0		// move syscall args

	return &ObjectReadSeekCloser{
		segmentReader: segmentReader,
		size:          actualSize,
		offset:        0,
		reader:        nil,
	}
}

// Seek call to implement io.Seeker
func (rsc *ObjectReadSeekCloser) Seek(offset int64, whence int) (int64, error) {
	// fmt.Printf("actual: %v offset: %v (%v) whence: %v\n", rsc.size, offset, rsc.offset, whence)
	switch whence {
	case io.SeekStart:

}

func closefd(fd uintptr) {
	syscall.Close(int(fd))
}

func preadn(fd uintptr, buf []byte, off int) error {
	whence := seekStart
	if off < 0 {
		whence = seekEnd
	}
	if _, err := syscall.Seek(int(fd), int64(off), whence); err != nil {
		return err
	}
	for len(buf) > 0 {
		m, err := syscall.Read(int(fd), buf)
		if m <= 0 {
			if err == nil {
				return errors.New("short read")
			}
			return err

// signature for that interface.
//
// Checked method names include:
//
//	Format GobEncode GobDecode MarshalJSON MarshalXML
//	Peek ReadByte ReadFrom ReadRune Scan Seek
//	UnmarshalJSON UnreadByte UnreadRune WriteByte
//	WriteTo

}

func closefd(fd uintptr) {
	syscall.Close(int(fd))
}

func preadn(fd uintptr, buf []byte, off int) error {
	whence := seekStart
	if off < 0 {
		whence = seekEnd
	}
	if _, err := syscall.Seek(int(fd), int64(off), whence); err != nil {
		return err
	}
	for len(buf) > 0 {
		m, err := syscall.Read(int(fd), buf)
		if m <= 0 {
			if err == nil {
				return errors.New("short read")
			}
			return err

        input = new ByteInput(file)
    }

    def cleanup() {
        file.close()
    }

    def "can reuse to read from multiple locations in file"() {
        given:
        file.seek(0)
        file.writeInt(123)
        file.writeInt(321)
        file.writeInt(456)

        expect:
        def stream = input.start(0)
        stream.readInt() == 123
        stream.readInt() == 321

	MOVW	trap+0(FP), R7	// syscall entry
	MOVW	a1+4(FP), R0
	MOVW	a2+8(FP), R1
	MOVW	a3+12(FP), R2
	SWI	$0
	MOVW	R0, r1+16(FP)
	MOVW	$0, R0
	MOVW	R0, r2+20(FP)
	RET

TEXT ·seek(SB),NOSPLIT,$0-28

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix && ppc

package unix

//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = getrlimit64
//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek64

//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)

func setTimespec(sec, nsec int64) Timespec {