Merge release-20200622.1-195-g6f7f73996 (automated)

3 files changed, 1691 insertions, 0 deletions

diff --git a/tools/go_marshal/primitive/primitive.go b/tools/go_marshal/primitive/primitive.go
new file mode 100644
index 000000000..d93edda8b
--- /dev/null
+++ b/tools/go_marshal/primitive/primitive.go
@@ -0,0 +1,247 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package primitive defines marshal.Marshallable implementations for primitive
+// types.
+package primitive
+
+import (
+	"io"
+
+	"gvisor.dev/gvisor/pkg/usermem"
+	"gvisor.dev/gvisor/tools/go_marshal/marshal"
+)
+
+// Int8 is a marshal.Marshallable implementation for int8.
+//
+// +marshal slice:Int8Slice:inner
+type Int8 int8
+
+// Uint8 is a marshal.Marshallable implementation for uint8.
+//
+// +marshal slice:Uint8Slice:inner
+type Uint8 uint8
+
+// Int16 is a marshal.Marshallable implementation for int16.
+//
+// +marshal slice:Int16Slice:inner
+type Int16 int16
+
+// Uint16 is a marshal.Marshallable implementation for uint16.
+//
+// +marshal slice:Uint16Slice:inner
+type Uint16 uint16
+
+// Int32 is a marshal.Marshallable implementation for int32.
+//
+// +marshal slice:Int32Slice:inner
+type Int32 int32
+
+// Uint32 is a marshal.Marshallable implementation for uint32.
+//
+// +marshal slice:Uint32Slice:inner
+type Uint32 uint32
+
+// Int64 is a marshal.Marshallable implementation for int64.
+//
+// +marshal slice:Int64Slice:inner
+type Int64 int64
+
+// Uint64 is a marshal.Marshallable implementation for uint64.
+//
+// +marshal slice:Uint64Slice:inner
+type Uint64 uint64
+
+// ByteSlice is a marshal.Marshallable implementation for []byte.
+// This is a convenience wrapper around a dynamically sized type, and can't be
+// embedded in other marshallable types because it breaks assumptions made by
+// go-marshal internals. It violates the "no dynamically-sized types"
+// constraint of the go-marshal library.
+type ByteSlice []byte
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+func (b *ByteSlice) SizeBytes() int {
+	return len(*b)
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (b *ByteSlice) MarshalBytes(dst []byte) {
+	copy(dst, *b)
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (b *ByteSlice) UnmarshalBytes(src []byte) {
+	copy(*b, src)
+}
+
+// Packed implements marshal.Marshallable.Packed.
+func (b *ByteSlice) Packed() bool {
+	return false
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (b *ByteSlice) MarshalUnsafe(dst []byte) {
+	b.MarshalBytes(dst)
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (b *ByteSlice) UnmarshalUnsafe(src []byte) {
+	b.UnmarshalBytes(src)
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+func (b *ByteSlice) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+	return task.CopyInBytes(addr, *b)
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+func (b *ByteSlice) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+	return task.CopyOutBytes(addr, *b)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+func (b *ByteSlice) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+	return task.CopyOutBytes(addr, (*b)[:limit])
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (b *ByteSlice) WriteTo(w io.Writer) (int64, error) {
+	n, err := w.Write(*b)
+	return int64(n), err
+}
+
+var _ marshal.Marshallable = (*ByteSlice)(nil)
+
+// Below, we define some convenience functions for marshalling primitive types
+// using the newtypes above, without requiring superfluous casts.
+
+// 16-bit integers
+
+// CopyInt16In is a convenient wrapper for copying in an int16 from the task's
+// memory.
+func CopyInt16In(task marshal.Task, addr usermem.Addr, dst *int16) (int, error) {
+	var buf Int16
+	n, err := buf.CopyIn(task, addr)
+	if err != nil {
+		return n, err
+	}
+	*dst = int16(buf)
+	return n, nil
+}
+
+// CopyInt16Out is a convenient wrapper for copying out an int16 to the task's
+// memory.
+func CopyInt16Out(task marshal.Task, addr usermem.Addr, src int16) (int, error) {
+	srcP := Int16(src)
+	return srcP.CopyOut(task, addr)
+}
+
+// CopyUint16In is a convenient wrapper for copying in a uint16 from the task's
+// memory.
+func CopyUint16In(task marshal.Task, addr usermem.Addr, dst *uint16) (int, error) {
+	var buf Uint16
+	n, err := buf.CopyIn(task, addr)
+	if err != nil {
+		return n, err
+	}
+	*dst = uint16(buf)
+	return n, nil
+}
+
+// CopyUint16Out is a convenient wrapper for copying out a uint16 to the task's
+// memory.
+func CopyUint16Out(task marshal.Task, addr usermem.Addr, src uint16) (int, error) {
+	srcP := Uint16(src)
+	return srcP.CopyOut(task, addr)
+}
+
+// 32-bit integers
+
+// CopyInt32In is a convenient wrapper for copying in an int32 from the task's
+// memory.
+func CopyInt32In(task marshal.Task, addr usermem.Addr, dst *int32) (int, error) {
+	var buf Int32
+	n, err := buf.CopyIn(task, addr)
+	if err != nil {
+		return n, err
+	}
+	*dst = int32(buf)
+	return n, nil
+}
+
+// CopyInt32Out is a convenient wrapper for copying out an int32 to the task's
+// memory.
+func CopyInt32Out(task marshal.Task, addr usermem.Addr, src int32) (int, error) {
+	srcP := Int32(src)
+	return srcP.CopyOut(task, addr)
+}
+
+// CopyUint32In is a convenient wrapper for copying in a uint32 from the task's
+// memory.
+func CopyUint32In(task marshal.Task, addr usermem.Addr, dst *uint32) (int, error) {
+	var buf Uint32
+	n, err := buf.CopyIn(task, addr)
+	if err != nil {
+		return n, err
+	}
+	*dst = uint32(buf)
+	return n, nil
+}
+
+// CopyUint32Out is a convenient wrapper for copying out a uint32 to the task's
+// memory.
+func CopyUint32Out(task marshal.Task, addr usermem.Addr, src uint32) (int, error) {
+	srcP := Uint32(src)
+	return srcP.CopyOut(task, addr)
+}
+
+// 64-bit integers
+
+// CopyInt64In is a convenient wrapper for copying in an int64 from the task's
+// memory.
+func CopyInt64In(task marshal.Task, addr usermem.Addr, dst *int64) (int, error) {
+	var buf Int64
+	n, err := buf.CopyIn(task, addr)
+	if err != nil {
+		return n, err
+	}
+	*dst = int64(buf)
+	return n, nil
+}
+
+// CopyInt64Out is a convenient wrapper for copying out an int64 to the task's
+// memory.
+func CopyInt64Out(task marshal.Task, addr usermem.Addr, src int64) (int, error) {
+	srcP := Int64(src)
+	return srcP.CopyOut(task, addr)
+}
+
+// CopyUint64In is a convenient wrapper for copying in a uint64 from the task's
+// memory.
+func CopyUint64In(task marshal.Task, addr usermem.Addr, dst *uint64) (int, error) {
+	var buf Uint64
+	n, err := buf.CopyIn(task, addr)
+	if err != nil {
+		return n, err
+	}
+	*dst = uint64(buf)
+	return n, nil
+}
+
+// CopyUint64Out is a convenient wrapper for copying out a uint64 to the task's
+// memory.
+func CopyUint64Out(task marshal.Task, addr usermem.Addr, src uint64) (int, error) {
+	srcP := Uint64(src)
+	return srcP.CopyOut(task, addr)
+}
diff --git a/tools/go_marshal/primitive/primitive_abi_autogen_unsafe.go b/tools/go_marshal/primitive/primitive_abi_autogen_unsafe.go
new file mode 100644
index 000000000..a408e8194
--- /dev/null
+++ b/tools/go_marshal/primitive/primitive_abi_autogen_unsafe.go
@@ -0,0 +1,1441 @@
+// Automatically generated marshal implementation. See tools/go_marshal.
+
+package primitive
+
+import (
+    "gvisor.dev/gvisor/pkg/gohacks"
+    "gvisor.dev/gvisor/pkg/safecopy"
+    "gvisor.dev/gvisor/pkg/usermem"
+    "gvisor.dev/gvisor/tools/go_marshal/marshal"
+    "io"
+    "reflect"
+    "runtime"
+    "unsafe"
+)
+
+// Marshallable types used by this file.
+var _ marshal.Marshallable = (*Int16)(nil)
+var _ marshal.Marshallable = (*Int32)(nil)
+var _ marshal.Marshallable = (*Int64)(nil)
+var _ marshal.Marshallable = (*Int8)(nil)
+var _ marshal.Marshallable = (*Uint16)(nil)
+var _ marshal.Marshallable = (*Uint32)(nil)
+var _ marshal.Marshallable = (*Uint64)(nil)
+var _ marshal.Marshallable = (*Uint8)(nil)
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (i *Int8) SizeBytes() int {
+    return 1
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (i *Int8) MarshalBytes(dst []byte) {
+    dst[0] = byte(*i)
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (i *Int8) UnmarshalBytes(src []byte) {
+    *i = Int8(int8(src[0]))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (i *Int8) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (i *Int8) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(i))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (i *Int8) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(i), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (i *Int8) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (i *Int8) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return i.CopyOutN(task, addr, i.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (i *Int8) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (i *Int8) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return int64(length), err
+}
+
+// CopyInt8SliceIn copies in a slice of int8 objects from the task's memory.
+//go:nosplit
+func CopyInt8SliceIn(task marshal.Task, addr usermem.Addr, dst []int8) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyInt8SliceOut copies a slice of int8 objects to the task's memory.
+//go:nosplit
+func CopyInt8SliceOut(task marshal.Task, addr usermem.Addr, src []int8) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeInt8Slice is like Int8.MarshalUnsafe, but for a []Int8.
+func MarshalUnsafeInt8Slice(src []Int8, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeInt8Slice is like Int8.UnmarshalUnsafe, but for a []Int8.
+func UnmarshalUnsafeInt8Slice(dst []Int8, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (u *Uint8) SizeBytes() int {
+    return 1
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (u *Uint8) MarshalBytes(dst []byte) {
+    dst[0] = byte(*u)
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (u *Uint8) UnmarshalBytes(src []byte) {
+    *u = Uint8(uint8(src[0]))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (u *Uint8) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (u *Uint8) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(u))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (u *Uint8) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(u), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (u *Uint8) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (u *Uint8) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return u.CopyOutN(task, addr, u.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (u *Uint8) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (u *Uint8) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return int64(length), err
+}
+
+// CopyUint8SliceIn copies in a slice of uint8 objects from the task's memory.
+//go:nosplit
+func CopyUint8SliceIn(task marshal.Task, addr usermem.Addr, dst []uint8) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyUint8SliceOut copies a slice of uint8 objects to the task's memory.
+//go:nosplit
+func CopyUint8SliceOut(task marshal.Task, addr usermem.Addr, src []uint8) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeUint8Slice is like Uint8.MarshalUnsafe, but for a []Uint8.
+func MarshalUnsafeUint8Slice(src []Uint8, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeUint8Slice is like Uint8.UnmarshalUnsafe, but for a []Uint8.
+func UnmarshalUnsafeUint8Slice(dst []Uint8, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint8)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (i *Int16) SizeBytes() int {
+    return 2
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (i *Int16) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint16(dst[:2], uint16(*i))
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (i *Int16) UnmarshalBytes(src []byte) {
+    *i = Int16(int16(usermem.ByteOrder.Uint16(src[:2])))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (i *Int16) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (i *Int16) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(i))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (i *Int16) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(i), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (i *Int16) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (i *Int16) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return i.CopyOutN(task, addr, i.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (i *Int16) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (i *Int16) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return int64(length), err
+}
+
+// CopyInt16SliceIn copies in a slice of int16 objects from the task's memory.
+//go:nosplit
+func CopyInt16SliceIn(task marshal.Task, addr usermem.Addr, dst []int16) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyInt16SliceOut copies a slice of int16 objects to the task's memory.
+//go:nosplit
+func CopyInt16SliceOut(task marshal.Task, addr usermem.Addr, src []int16) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeInt16Slice is like Int16.MarshalUnsafe, but for a []Int16.
+func MarshalUnsafeInt16Slice(src []Int16, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeInt16Slice is like Int16.UnmarshalUnsafe, but for a []Int16.
+func UnmarshalUnsafeInt16Slice(dst []Int16, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (u *Uint16) SizeBytes() int {
+    return 2
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (u *Uint16) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint16(dst[:2], uint16(*u))
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (u *Uint16) UnmarshalBytes(src []byte) {
+    *u = Uint16(uint16(usermem.ByteOrder.Uint16(src[:2])))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (u *Uint16) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (u *Uint16) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(u))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (u *Uint16) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(u), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (u *Uint16) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (u *Uint16) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return u.CopyOutN(task, addr, u.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (u *Uint16) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (u *Uint16) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return int64(length), err
+}
+
+// CopyUint16SliceIn copies in a slice of uint16 objects from the task's memory.
+//go:nosplit
+func CopyUint16SliceIn(task marshal.Task, addr usermem.Addr, dst []uint16) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyUint16SliceOut copies a slice of uint16 objects to the task's memory.
+//go:nosplit
+func CopyUint16SliceOut(task marshal.Task, addr usermem.Addr, src []uint16) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeUint16Slice is like Uint16.MarshalUnsafe, but for a []Uint16.
+func MarshalUnsafeUint16Slice(src []Uint16, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeUint16Slice is like Uint16.UnmarshalUnsafe, but for a []Uint16.
+func UnmarshalUnsafeUint16Slice(dst []Uint16, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint16)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (i *Int32) SizeBytes() int {
+    return 4
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (i *Int32) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint32(dst[:4], uint32(*i))
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (i *Int32) UnmarshalBytes(src []byte) {
+    *i = Int32(int32(usermem.ByteOrder.Uint32(src[:4])))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (i *Int32) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (i *Int32) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(i))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (i *Int32) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(i), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (i *Int32) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (i *Int32) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return i.CopyOutN(task, addr, i.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (i *Int32) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (i *Int32) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return int64(length), err
+}
+
+// CopyInt32SliceIn copies in a slice of int32 objects from the task's memory.
+//go:nosplit
+func CopyInt32SliceIn(task marshal.Task, addr usermem.Addr, dst []int32) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyInt32SliceOut copies a slice of int32 objects to the task's memory.
+//go:nosplit
+func CopyInt32SliceOut(task marshal.Task, addr usermem.Addr, src []int32) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeInt32Slice is like Int32.MarshalUnsafe, but for a []Int32.
+func MarshalUnsafeInt32Slice(src []Int32, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeInt32Slice is like Int32.UnmarshalUnsafe, but for a []Int32.
+func UnmarshalUnsafeInt32Slice(dst []Int32, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (u *Uint32) SizeBytes() int {
+    return 4
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (u *Uint32) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint32(dst[:4], uint32(*u))
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (u *Uint32) UnmarshalBytes(src []byte) {
+    *u = Uint32(uint32(usermem.ByteOrder.Uint32(src[:4])))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (u *Uint32) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (u *Uint32) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(u))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (u *Uint32) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(u), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (u *Uint32) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (u *Uint32) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return u.CopyOutN(task, addr, u.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (u *Uint32) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (u *Uint32) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return int64(length), err
+}
+
+// CopyUint32SliceIn copies in a slice of uint32 objects from the task's memory.
+//go:nosplit
+func CopyUint32SliceIn(task marshal.Task, addr usermem.Addr, dst []uint32) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyUint32SliceOut copies a slice of uint32 objects to the task's memory.
+//go:nosplit
+func CopyUint32SliceOut(task marshal.Task, addr usermem.Addr, src []uint32) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeUint32Slice is like Uint32.MarshalUnsafe, but for a []Uint32.
+func MarshalUnsafeUint32Slice(src []Uint32, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeUint32Slice is like Uint32.UnmarshalUnsafe, but for a []Uint32.
+func UnmarshalUnsafeUint32Slice(dst []Uint32, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint32)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (i *Int64) SizeBytes() int {
+    return 8
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (i *Int64) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(*i))
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (i *Int64) UnmarshalBytes(src []byte) {
+    *i = Int64(int64(usermem.ByteOrder.Uint64(src[:8])))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (i *Int64) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (i *Int64) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(i))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (i *Int64) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(i), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (i *Int64) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (i *Int64) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return i.CopyOutN(task, addr, i.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (i *Int64) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (i *Int64) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(i)))
+    hdr.Len = i.SizeBytes()
+    hdr.Cap = i.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that i
+    // must live until the use above.
+    runtime.KeepAlive(i)
+    return int64(length), err
+}
+
+// CopyInt64SliceIn copies in a slice of int64 objects from the task's memory.
+//go:nosplit
+func CopyInt64SliceIn(task marshal.Task, addr usermem.Addr, dst []int64) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyInt64SliceOut copies a slice of int64 objects to the task's memory.
+//go:nosplit
+func CopyInt64SliceOut(task marshal.Task, addr usermem.Addr, src []int64) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeInt64Slice is like Int64.MarshalUnsafe, but for a []Int64.
+func MarshalUnsafeInt64Slice(src []Int64, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeInt64Slice is like Int64.UnmarshalUnsafe, but for a []Int64.
+func UnmarshalUnsafeInt64Slice(dst []Int64, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Int64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+//go:nosplit
+func (u *Uint64) SizeBytes() int {
+    return 8
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (u *Uint64) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(*u))
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (u *Uint64) UnmarshalBytes(src []byte) {
+    *u = Uint64(uint64(usermem.ByteOrder.Uint64(src[:8])))
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (u *Uint64) Packed() bool {
+    // Scalar newtypes are always packed.
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (u *Uint64) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(u))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (u *Uint64) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(u), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (u *Uint64) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (u *Uint64) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return u.CopyOutN(task, addr, u.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (u *Uint64) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (u *Uint64) WriteTo(w io.Writer) (int64, error) {
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(gohacks.Noescape(unsafe.Pointer(u)))
+    hdr.Len = u.SizeBytes()
+    hdr.Cap = u.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that u
+    // must live until the use above.
+    runtime.KeepAlive(u)
+    return int64(length), err
+}
+
+// CopyUint64SliceIn copies in a slice of uint64 objects from the task's memory.
+//go:nosplit
+func CopyUint64SliceIn(task marshal.Task, addr usermem.Addr, dst []uint64) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
+// CopyUint64SliceOut copies a slice of uint64 objects to the task's memory.
+//go:nosplit
+func CopyUint64SliceOut(task marshal.Task, addr usermem.Addr, src []uint64) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    // Construct a slice backed by dst's underlying memory.
+    var buf []byte
+    hdr := (*reflect.SliceHeader)(unsafe.Pointer(&buf))
+    hdr.Data = uintptr(val)
+    hdr.Len = size * count
+    hdr.Cap = size * count
+
+    length, err := task.CopyOutBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// MarshalUnsafeUint64Slice is like Uint64.MarshalUnsafe, but for a []Uint64.
+func MarshalUnsafeUint64Slice(src []Uint64, dst []byte) (int, error) {
+    count := len(src)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&src)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyIn(dst[:(size*count)], val)
+    // Since we bypassed the compiler's escape analysis, indicate that src
+    // must live until the use above.
+    runtime.KeepAlive(src)
+    return length, err
+}
+
+// UnmarshalUnsafeUint64Slice is like Uint64.UnmarshalUnsafe, but for a []Uint64.
+func UnmarshalUnsafeUint64Slice(dst []Uint64, src []byte) (int, error) {
+    count := len(dst)
+    if count == 0 {
+        return 0, nil
+    }
+    size := (*Uint64)(nil).SizeBytes()
+
+    ptr := unsafe.Pointer(&dst)
+    val := gohacks.Noescape(unsafe.Pointer((*reflect.SliceHeader)(ptr).Data))
+
+    length, err := safecopy.CopyOut(val, src[:(size*count)])
+    // Since we bypassed the compiler's escape analysis, indicate that dst
+    // must live until the use above.
+    runtime.KeepAlive(dst)
+    return length, err
+}
+
diff --git a/tools/go_marshal/primitive/primitive_state_autogen.go b/tools/go_marshal/primitive/primitive_state_autogen.go
new file mode 100644
index 000000000..f9db3a918
--- /dev/null
+++ b/tools/go_marshal/primitive/primitive_state_autogen.go
@@ -0,0 +1,3 @@
+// automatically generated by stateify.
+
+package primitive