ctxt.Diag("copy %s: unexpected length %d != %d", file.Name, written, file.Size)
	}
}

func (w *writer) StringTable() {
	w.AddString("")
	for _, p := range w.ctxt.Imports {
		w.AddString(p.Pkg)
	}
	for _, pkg := range w.pkglist {
		w.AddString(pkg)
	}
	w.ctxt.traverseSyms(traverseAll, func(s *LSym) {
		// Don't put names of builtins into the string table (to save
		// space).

}

func (rd *reparseData) addString(s string) (offset, length uint16) {
	p := syscall.StringToUTF16(s)
	return rd.addUTF16s(p), uint16(len(p)-1) * 2 // do not include terminating NUL in the length (as per PrintNameLength and SubstituteNameLength documentation)
}

func (rd *reparseData) addSubstituteName(name string) {
	rd.substituteName.offset, rd.substituteName.length = rd.addString(name)
}

		symstr.AddUint8('_')

		// replace "·" as ".", because DTrace cannot handle it.
		name := strings.Replace(ldr.SymExtname(s), "·", ".", -1)

		name = mangleABIName(ctxt, ldr, s, name)
		symstr.Addstring(name)

		if t := ldr.SymType(s); t == sym.SDYNIMPORT || t == sym.SHOSTOBJ || t == sym.SUNDEFEXT {
			symtab.AddUint8(0x01)                             // type N_EXT, external symbol

	b [8]byte // scratch space for writing bytes
}

func NewWriter(wr *bio.Writer) *Writer {
	return &Writer{wr: wr, stringMap: make(map[string]uint32)}
}

func (w *Writer) AddString(s string) {
	if _, ok := w.stringMap[s]; ok {
		return
	}
	w.stringMap[s] = w.off
	w.RawString(s)
}

func (w *Writer) stringOff(s string) uint32 {
	off, ok := w.stringMap[s]
	if !ok {