if uintptr(len(tmpbuf)) < nptr/8+1 {
		if tmpbuf != nil {
			sysFree(unsafe.Pointer(&tmpbuf[0]), uintptr(len(tmpbuf)), &memstats.other_sys)
		}
		n := nptr/8 + 1
		p := sysAlloc(n, &memstats.other_sys)
		if p == nil {
			throw("heapdump: out of memory")
		}
		tmpbuf = (*[1 << 30]byte)(p)[:n]
	}
	// Convert heap bitmap to pointer bitmap.
	clear(tmpbuf[:nptr/8+1])
	s := spanOf(p)

	return s
}

func concatstring2(buf *tmpBuf, a0, a1 string) string {
	return concatstrings(buf, []string{a0, a1})
}

func concatstring3(buf *tmpBuf, a0, a1, a2 string) string {
	return concatstrings(buf, []string{a0, a1, a2})
}

func concatstring4(buf *tmpBuf, a0, a1, a2, a3 string) string {
	return concatstrings(buf, []string{a0, a1, a2, a3})
}

func concatstring5(buf *tmpBuf, a0, a1, a2, a3, a4 string) string {

	pkglist []string // list of packages referenced, indexed by ctxt.pkgIdx

	// scratch space for writing (the Write methods escape
	// as they are interface calls)
	tmpSym      goobj.Sym
	tmpReloc    goobj.Reloc
	tmpAux      goobj.Aux
	tmpHash64   goobj.Hash64Type
	tmpHash     goobj.HashType
	tmpRefFlags goobj.RefFlags
	tmpRefName  goobj.RefName
}

// prepare package index list
func (w *writer) init() {

// results in these values showing up in a generated manifest.
func TestLDFlags(t *testing.T) {
	tmpHub, tmpTag := version.DockerInfo.Hub, version.DockerInfo.Tag
	defer func() {
		version.DockerInfo.Hub, version.DockerInfo.Tag = tmpHub, tmpTag
	}()
	version.DockerInfo.Hub = "testHub"
	version.DockerInfo.Tag = "testTag"
	l := clog.NewConsoleLogger(os.Stdout, os.Stderr, installerScope)