if a._type != nil && a._type.Kind_&abi.KindMask != abi.Pointer {
		return nil, plainError("args must be a pointer or nil")
	}
	argp := a.data
	var argSize uintptr
	if argp != nil {
		argSize = (*ptrtype)(unsafe.Pointer(a._type)).Elem.Size_
	}

	h := new(debugCallHandler)
	h.gp = gp
	// gp may not be running right now, but we can still get the M
	// it will run on since it's locked.
	h.mp = gp.lockedm.ptr()

	if t.TFlag&TFlagUncommon == 0 {
		return nil
	}
	switch t.Kind() {
	case Struct:
		return &(*structTypeUncommon)(unsafe.Pointer(t)).u
	case Pointer:
		type u struct {
			PtrType
			u UncommonType
		}
		return &(*u)(unsafe.Pointer(t)).u
	case Func:
		type u struct {
			FuncType
			u UncommonType
		}
		return &(*u)(unsafe.Pointer(t)).u
	case Slice:
		type u struct {

	if pi, ok := ptrMap.Load(t); ok {
		return &pi.(*ptrType).Type
	}

	// Look in known types.
	s := "*" + t.String()
	for _, tt := range typesByString(s) {
		p := (*ptrType)(unsafe.Pointer(tt))
		if p.Elem != &t.t {
			continue
		}
		pi, _ := ptrMap.LoadOrStore(t, p)
		return &pi.(*ptrType).Type
	}

	// Create a new ptrType starting with the description
	// of an *unsafe.Pointer.

func dumpotherroot(description string, to unsafe.Pointer) {
	dumpint(tagOtherRoot)
	dumpstr(description)
	dumpint(uint64(uintptr(to)))
}

func dumpfinalizer(obj unsafe.Pointer, fn *funcval, fint *_type, ot *ptrtype) {
	dumpint(tagFinalizer)
	dumpint(uint64(uintptr(obj)))
	dumpint(uint64(uintptr(unsafe.Pointer(fn))))
	dumpint(uint64(uintptr(unsafe.Pointer(fn.fn))))
	dumpint(uint64(uintptr(unsafe.Pointer(fint))))

		// constants to the parameter type, to avoid a type mismatch.
		ptype := p.rewriteUnsafe(param.Go)

		if !p.needsPointerCheck(f, param.Go, args[i]) || param.BadPointer || p.checkUnsafeStringData(args[i]) {
			if ptype != param.Go {
				needsUnsafe = true
			}
			fmt.Fprintf(&sb, "var _cgo%d %s = %s; ", i,
				gofmt(ptype), gofmtPos(arg, origArg.Pos()))
			continue
		}

		// Check for &a[i].

func arena_arena_New(arena unsafe.Pointer, typ any) any {
	t := (*_type)(efaceOf(&typ).data)
	if t.Kind_&abi.KindMask != abi.Pointer {
		throw("arena_New: non-pointer type")
	}
	te := (*ptrtype)(unsafe.Pointer(t)).Elem
	x := ((*userArena)(arena)).new(te)
	var result any
	e := efaceOf(&result)
	e._type = t
	e.data = x
	return result
}

	case abi.Pointer:
		ptr := v.ptr
		if v.flag&flagIndir != 0 {
			ptr = *(*unsafe.Pointer)(ptr)
		}
		// The returned value's address is v's value.
		if ptr == nil {
			return Value{}
		}
		tt := (*ptrType)(unsafe.Pointer(v.typ()))
		typ := tt.Elem
		fl := v.flag&flagRO | flagIndir | flagAddr
		fl |= flag(typ.Kind())
		return Value{typ, ptr, fl}
	}
	panic(&ValueError{"reflectlite.Value.Elem", v.kind()})
}

	}
	off := commonsize(arch) // reflect.rtype
	switch decodetypeKind(arch, p) {
	case abi.Struct: // reflect.structType
		off += 4 * arch.PtrSize
	case abi.Pointer: // reflect.ptrType
		off += arch.PtrSize
	case abi.Func: // reflect.funcType
		off += arch.PtrSize // 4 bytes, pointer aligned
	case abi.Slice: // reflect.sliceType
		off += arch.PtrSize
	case abi.Array: // reflect.arrayType

		aep := efaceOf(&arg)
		switch aep._type.Kind_ & abi.KindMask {
		case abi.Bool:
			if t.Kind_&abi.KindMask == abi.UnsafePointer {
				// We don't know the type of the element.
				break
			}
			pt := (*ptrtype)(unsafe.Pointer(t))
			cgoCheckArg(pt.Elem, p, true, false, cgoCheckPointerFail)
			return
		case abi.Slice:
			// Check the slice rather than the pointer.
			ep = aep
			t = ep._type
		case abi.Array:

	t := e._type

	var et *_type
	if t.Kind_&abi.KindMask != abi.Pointer {
		throw("bad argument to getgcmask: expected type to be a pointer to the value type whose mask is being queried")
	}
	et = (*ptrtype)(unsafe.Pointer(t)).Elem

	// data or bss
	for _, datap := range activeModules() {
		// data
		if datap.data <= uintptr(p) && uintptr(p) < datap.edata {
			bitmap := datap.gcdatamask.bytedata