func (sb *SymbolBuilder) Dynimpvers() string     { return sb.l.SymDynimpvers(sb.symIdx) }
func (sb *SymbolBuilder) SubSym() Sym            { return sb.l.SubSym(sb.symIdx) }
func (sb *SymbolBuilder) GoType() Sym            { return sb.l.SymGoType(sb.symIdx) }
func (sb *SymbolBuilder) VisibilityHidden() bool { return sb.l.AttrVisibilityHidden(sb.symIdx) }
func (sb *SymbolBuilder) Sect() *sym.Section     { return sb.l.SymSect(sb.symIdx) }

		switch v.Type {
		case env.STRING:
			g.emit("<td>String</td>")
		case env.BOOL:
			g.emit("<td>Boolean</td>")
		case env.INT:
			g.emit("<td>Integer</td>")
		case env.FLOAT:
			g.emit("<td>Floating-Point</td>")
		case env.DURATION:
			g.emit("<td>Time Duration</td>")
		case env.OTHER:
			g.emit(fmt.Sprintf("<td>%s</td>", v.GoType))
		}

		f.End = ft.pc(i + 1)
		info := t.funcData(uint32(i))
		f.LineTable = t
		f.FrameSize = int(info.deferreturn())
		syms[i] = Sym{
			Value:     f.Entry,
			Type:      'T',
			Name:      t.funcName(info.nameOff()),
			GoType:    0,
			Func:      f,
			goVersion: t.version,
		}
		f.Sym = &syms[i]
	}
	return funcs
}

// for testing
func (s *Sym) fromBytes(b []byte) { copy(s[:], b) }

// Symbol reference.
type SymRef struct {
	PkgIdx uint32
	SymIdx uint32
}

func (s SymRef) IsZero() bool { return s == SymRef{} }

// Hash64
type Hash64Type [Hash64Size]byte

const Hash64Size = 8

// Hash
type HashType [HashSize]byte

const HashSize = 16 // truncated SHA256

// Relocation.
//

// ExtReloc contains the payload for an external relocation.
type ExtReloc struct {
	Xsym Sym
	Xadd int64
	Type objabi.RelocType
	Size uint8
}

// Reloc holds a "handle" to access a relocation record from an
// object file.
type Reloc struct {
	*goobj.Reloc
	r *oReader
	l *Loader
}

func (rel Reloc) Type() objabi.RelocType     { return objabi.RelocType(rel.Reloc.Type()) &^ objabi.R_WEAK }

// A typeSwitch walks a type switch.
type typeSwitch struct {
	// Temporary variables (i.e., ONAMEs) used by type switch dispatch logic:
	srcName  ir.Node // value being type-switched on
	hashName ir.Node // type hash of the value being type-switched on
	okName   ir.Node // boolean used for comma-ok type assertions
	itabName ir.Node // itab value to use for first word of non-empty interface
}

type typeClause struct {
	hash uint32

func walkDotType(n *ir.TypeAssertExpr, init *ir.Nodes) ir.Node {
	n.X = walkExpr(n.X, init)
	// Set up interface type addresses for back end.
	if !n.Type().IsInterface() && !n.X.Type().IsEmptyInterface() {
		n.ITab = reflectdata.ITabAddrAt(base.Pos, n.Type(), n.X.Type())
	}
	if n.X.Type().IsInterface() && n.Type().IsInterface() && !n.Type().IsEmptyInterface() {
		// This kind of conversion needs a runtime call. Allocate
		// a descriptor for that call.

func addstrdata(arch *sys.Arch, l *loader.Loader, name, value string) {
	s := l.Lookup(name, 0)
	if s == 0 {
		return
	}
	if goType := l.SymGoType(s); goType == 0 {
		return
	} else if typeName := l.SymName(goType); typeName != "type:string" {
		Errorf(nil, "%s: cannot set with -X: not a var of type string (%s)", name, typeName)
		return
	}
	if !l.AttrReachable(s) {
		return // don't bother setting unreachable variable

	"9a", "9c", "9g", "9l",
	"6cov",
	"6nm",
	"6prof",
	"cgo",
	"ebnflint",
	"goapi",
	"gofix",
	"goinstall",
	"gomake",
	"gopack",
	"gopprof",
	"gotest",
	"gotype",
	"govet",
	"goyacc",
	"quietgcc",
}

// Unreleased directories (relative to $GOROOT) that should
// not be in release branches.
var unreleased = []string{
	"src/cmd/newlink",

	}
	return s[i+1:]
}

func toRType(t *abi.Type) rtype {
	return rtype{t}
}

func elem(t *abi.Type) *abi.Type {
	et := t.Elem()
	if et != nil {
		return et
	}
	panic("reflect: Elem of invalid type " + toRType(t).String())
}

func (t rtype) Elem() Type {
	return toType(elem(t.common()))
}

func (t rtype) In(i int) Type {
	tt := t.Type.FuncType()
	if tt == nil {