func (ctxt *Link) loadcgodirectives() {
	l := ctxt.loader
	hostObjSyms := make(map[loader.Sym]struct{})
	for _, d := range ctxt.cgodata {
		setCgoAttr(ctxt, d.file, d.pkg, d.directives, hostObjSyms)
	}
	ctxt.cgodata = nil

	if ctxt.LinkMode == LinkInternal {
		// Drop all the cgo_import_static declarations.
		// Turns out we won't be needing them.
		for symIdx := range hostObjSyms {

	} else {
		typ = span.largeType
		if typ == nil {
			// Allow a nil type here for delayed zeroing. See mallocgc.
			return typePointers{}
		}
	}
	gcdata := typ.GCData
	return typePointers{elem: addr, addr: addr, mask: readUintptr(gcdata), typ: typ}
}

// typePointersOfType is like typePointersOf, but assumes addr points to one or more

		mask[word/8] |= 1 << (word % 8)
		gcdata = &mask[0]
		ptrdata = (word + 1) * goarch.PtrSize

		// overflow word must be last
		if ptrdata != size {
			panic("reflect: bad layout computation in MapOf")
		}
	}

	b := &abi.Type{
		Align_:   goarch.PtrSize,
		Size_:    size,
		Kind_:    abi.Struct,
		PtrBytes: ptrdata,
		GCData:   gcdata,
	}

	ENETUNREACH     = syscall.Errno(0x80)
	ENFILE          = syscall.Errno(0x17)
	ENOANO          = syscall.Errno(0x35)
	ENOBUFS         = syscall.Errno(0x84)
	ENOCSI          = syscall.Errno(0x2b)
	ENODATA         = syscall.Errno(0x3d)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x2e)

	ENFILE          = syscall.Errno(0x17)
	ENOATTR         = syscall.Errno(0x70)
	ENOBUFS         = syscall.Errno(0x4a)
	ENOCONNECT      = syscall.Errno(0x32)
	ENOCSI          = syscall.Errno(0x2b)
	ENODATA         = syscall.Errno(0x7a)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x31)

	ENFILE          = syscall.Errno(0x17)
	ENOATTR         = syscall.Errno(0x70)
	ENOBUFS         = syscall.Errno(0x4a)
	ENOCONNECT      = syscall.Errno(0x32)
	ENOCSI          = syscall.Errno(0x2b)
	ENODATA         = syscall.Errno(0x7a)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x31)

	ENETRESET       = syscall.Errno(0x34)
	ENETUNREACH     = syscall.Errno(0x33)
	ENFILE          = syscall.Errno(0x17)
	ENOATTR         = syscall.Errno(0x5d)
	ENOBUFS         = syscall.Errno(0x37)
	ENODATA         = syscall.Errno(0x60)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x4d)

	ENETRESET       = syscall.Errno(0x34)
	ENETUNREACH     = syscall.Errno(0x33)
	ENFILE          = syscall.Errno(0x17)
	ENOATTR         = syscall.Errno(0x5d)
	ENOBUFS         = syscall.Errno(0x37)
	ENODATA         = syscall.Errno(0x59)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x4d)

	ENETRESET       = syscall.Errno(0x34)
	ENETUNREACH     = syscall.Errno(0x33)
	ENFILE          = syscall.Errno(0x17)
	ENOATTR         = syscall.Errno(0x5d)
	ENOBUFS         = syscall.Errno(0x37)
	ENODATA         = syscall.Errno(0x60)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x4d)

	ENETRESET       = syscall.Errno(0x34)
	ENETUNREACH     = syscall.Errno(0x33)
	ENFILE          = syscall.Errno(0x17)
	ENOATTR         = syscall.Errno(0x5d)
	ENOBUFS         = syscall.Errno(0x37)
	ENODATA         = syscall.Errno(0x59)
	ENODEV          = syscall.Errno(0x13)
	ENOENT          = syscall.Errno(0x2)
	ENOEXEC         = syscall.Errno(0x8)
	ENOLCK          = syscall.Errno(0x4d)