github.com/metacubex/gvisor@v0.0.0-20240320004321-933faba989ec/pkg/sentry/syscalls/linux/linux_abi_autogen_unsafe.go

// Automatically generated marshal implementation. See tools/go_marshal.

package linux

import (
    "github.com/metacubex/gvisor/pkg/gohacks"
    "github.com/metacubex/gvisor/pkg/hostarch"
    "github.com/metacubex/gvisor/pkg/marshal"
    "io"
    "reflect"
    "runtime"
    "unsafe"
)

// Marshallable types used by this file.
var _ marshal.Marshallable = (*MessageHeader64)(nil)
var _ marshal.Marshallable = (*SchedParam)(nil)
var _ marshal.Marshallable = (*multipleMessageHeader64)(nil)
var _ marshal.Marshallable = (*rlimit64)(nil)
var _ marshal.Marshallable = (*sigSetWithSize)(nil)
var _ marshal.Marshallable = (*userSockFprog)(nil)

// SizeBytes implements marshal.Marshallable.SizeBytes.
func (s *sigSetWithSize) SizeBytes() int {
    return 16
}

// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (s *sigSetWithSize) MarshalBytes(dst []byte) []byte {
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(s.sigsetAddr))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(s.sizeofSigset))
    dst = dst[8:]
    return dst
}

// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (s *sigSetWithSize) UnmarshalBytes(src []byte) []byte {
    s.sigsetAddr = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    s.sizeofSigset = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    return src
}

// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (s *sigSetWithSize) Packed() bool {
    return true
}

// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (s *sigSetWithSize) MarshalUnsafe(dst []byte) []byte {
    size := s.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(s), uintptr(size))
    return dst[size:]
}

// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (s *sigSetWithSize) UnmarshalUnsafe(src []byte) []byte {
    size := s.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(s), unsafe.Pointer(&src[0]), uintptr(size))
    return src[size:]
}

// CopyOutN implements marshal.Marshallable.CopyOutN.
func (s *sigSetWithSize) CopyOutN(cc marshal.CopyContext, addr hostarch.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(s)))
    hdr.Len = s.SizeBytes()
    hdr.Cap = s.SizeBytes()

    length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that s
    // must live until the use above.
    runtime.KeepAlive(s) // escapes: replaced by intrinsic.
    return length, err
}

// CopyOut implements marshal.Marshallable.CopyOut.
func (s *sigSetWithSize) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return s.CopyOutN(cc, addr, s.SizeBytes())
}

// CopyInN implements marshal.Marshallable.CopyInN.
func (s *sigSetWithSize) CopyInN(cc marshal.CopyContext, addr hostarch.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(s)))
    hdr.Len = s.SizeBytes()
    hdr.Cap = s.SizeBytes()

    length, err := cc.CopyInBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that s
    // must live until the use above.
    runtime.KeepAlive(s) // escapes: replaced by intrinsic.
    return length, err
}

// CopyIn implements marshal.Marshallable.CopyIn.
func (s *sigSetWithSize) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return s.CopyInN(cc, addr, s.SizeBytes())
}

// WriteTo implements io.WriterTo.WriteTo.
func (s *sigSetWithSize) WriteTo(writer 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(s)))
    hdr.Len = s.SizeBytes()
    hdr.Cap = s.SizeBytes()

    length, err := writer.Write(buf)
    // Since we bypassed the compiler's escape analysis, indicate that s
    // must live until the use above.
    runtime.KeepAlive(s) // escapes: replaced by intrinsic.
    return int64(length), err
}

// SizeBytes implements marshal.Marshallable.SizeBytes.
func (r *rlimit64) SizeBytes() int {
    return 16
}

// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (r *rlimit64) MarshalBytes(dst []byte) []byte {
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(r.Cur))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(r.Max))
    dst = dst[8:]
    return dst
}

// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (r *rlimit64) UnmarshalBytes(src []byte) []byte {
    r.Cur = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    r.Max = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    return src
}

// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (r *rlimit64) Packed() bool {
    return true
}

// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (r *rlimit64) MarshalUnsafe(dst []byte) []byte {
    size := r.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(r), uintptr(size))
    return dst[size:]
}

// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (r *rlimit64) UnmarshalUnsafe(src []byte) []byte {
    size := r.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(r), unsafe.Pointer(&src[0]), uintptr(size))
    return src[size:]
}

// CopyOutN implements marshal.Marshallable.CopyOutN.
func (r *rlimit64) CopyOutN(cc marshal.CopyContext, addr hostarch.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(r)))
    hdr.Len = r.SizeBytes()
    hdr.Cap = r.SizeBytes()

    length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that r
    // must live until the use above.
    runtime.KeepAlive(r) // escapes: replaced by intrinsic.
    return length, err
}

// CopyOut implements marshal.Marshallable.CopyOut.
func (r *rlimit64) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return r.CopyOutN(cc, addr, r.SizeBytes())
}

// CopyInN implements marshal.Marshallable.CopyInN.
func (r *rlimit64) CopyInN(cc marshal.CopyContext, addr hostarch.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(r)))
    hdr.Len = r.SizeBytes()
    hdr.Cap = r.SizeBytes()

    length, err := cc.CopyInBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that r
    // must live until the use above.
    runtime.KeepAlive(r) // escapes: replaced by intrinsic.
    return length, err
}

// CopyIn implements marshal.Marshallable.CopyIn.
func (r *rlimit64) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return r.CopyInN(cc, addr, r.SizeBytes())
}

// WriteTo implements io.WriterTo.WriteTo.
func (r *rlimit64) WriteTo(writer 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(r)))
    hdr.Len = r.SizeBytes()
    hdr.Cap = r.SizeBytes()

    length, err := writer.Write(buf)
    // Since we bypassed the compiler's escape analysis, indicate that r
    // must live until the use above.
    runtime.KeepAlive(r) // escapes: replaced by intrinsic.
    return int64(length), err
}

// SizeBytes implements marshal.Marshallable.SizeBytes.
func (s *SchedParam) SizeBytes() int {
    return 4
}

// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (s *SchedParam) MarshalBytes(dst []byte) []byte {
    hostarch.ByteOrder.PutUint32(dst[:4], uint32(s.schedPriority))
    dst = dst[4:]
    return dst
}

// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (s *SchedParam) UnmarshalBytes(src []byte) []byte {
    s.schedPriority = int32(hostarch.ByteOrder.Uint32(src[:4]))
    src = src[4:]
    return src
}

// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (s *SchedParam) Packed() bool {
    return true
}

// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (s *SchedParam) MarshalUnsafe(dst []byte) []byte {
    size := s.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(s), uintptr(size))
    return dst[size:]
}

// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (s *SchedParam) UnmarshalUnsafe(src []byte) []byte {
    size := s.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(s), unsafe.Pointer(&src[0]), uintptr(size))
    return src[size:]
}

// CopyOutN implements marshal.Marshallable.CopyOutN.
func (s *SchedParam) CopyOutN(cc marshal.CopyContext, addr hostarch.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(s)))
    hdr.Len = s.SizeBytes()
    hdr.Cap = s.SizeBytes()

    length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that s
    // must live until the use above.
    runtime.KeepAlive(s) // escapes: replaced by intrinsic.
    return length, err
}

// CopyOut implements marshal.Marshallable.CopyOut.
func (s *SchedParam) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return s.CopyOutN(cc, addr, s.SizeBytes())
}

// CopyInN implements marshal.Marshallable.CopyInN.
func (s *SchedParam) CopyInN(cc marshal.CopyContext, addr hostarch.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(s)))
    hdr.Len = s.SizeBytes()
    hdr.Cap = s.SizeBytes()

    length, err := cc.CopyInBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that s
    // must live until the use above.
    runtime.KeepAlive(s) // escapes: replaced by intrinsic.
    return length, err
}

// CopyIn implements marshal.Marshallable.CopyIn.
func (s *SchedParam) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return s.CopyInN(cc, addr, s.SizeBytes())
}

// WriteTo implements io.WriterTo.WriteTo.
func (s *SchedParam) WriteTo(writer 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(s)))
    hdr.Len = s.SizeBytes()
    hdr.Cap = s.SizeBytes()

    length, err := writer.Write(buf)
    // Since we bypassed the compiler's escape analysis, indicate that s
    // must live until the use above.
    runtime.KeepAlive(s) // escapes: replaced by intrinsic.
    return int64(length), err
}

// SizeBytes implements marshal.Marshallable.SizeBytes.
func (u *userSockFprog) SizeBytes() int {
    return 10 +
        1*6
}

// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (u *userSockFprog) MarshalBytes(dst []byte) []byte {
    hostarch.ByteOrder.PutUint16(dst[:2], uint16(u.Len))
    dst = dst[2:]
    // Padding: dst[:sizeof(byte)*6] ~= [6]byte{0}
    dst = dst[1*(6):]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(u.Filter))
    dst = dst[8:]
    return dst
}

// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (u *userSockFprog) UnmarshalBytes(src []byte) []byte {
    u.Len = uint16(hostarch.ByteOrder.Uint16(src[:2]))
    src = src[2:]
    // Padding: ~ copy([6]byte(u._), src[:sizeof(byte)*6])
    src = src[1*(6):]
    u.Filter = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    return src
}

// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (u *userSockFprog) Packed() bool {
    return true
}

// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (u *userSockFprog) MarshalUnsafe(dst []byte) []byte {
    size := u.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(u), uintptr(size))
    return dst[size:]
}

// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (u *userSockFprog) UnmarshalUnsafe(src []byte) []byte {
    size := u.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(u), unsafe.Pointer(&src[0]), uintptr(size))
    return src[size:]
}

// CopyOutN implements marshal.Marshallable.CopyOutN.
func (u *userSockFprog) CopyOutN(cc marshal.CopyContext, addr hostarch.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 := cc.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) // escapes: replaced by intrinsic.
    return length, err
}

// CopyOut implements marshal.Marshallable.CopyOut.
func (u *userSockFprog) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return u.CopyOutN(cc, addr, u.SizeBytes())
}

// CopyInN implements marshal.Marshallable.CopyInN.
func (u *userSockFprog) CopyInN(cc marshal.CopyContext, addr hostarch.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 := cc.CopyInBytes(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) // escapes: replaced by intrinsic.
    return length, err
}

// CopyIn implements marshal.Marshallable.CopyIn.
func (u *userSockFprog) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return u.CopyInN(cc, addr, u.SizeBytes())
}

// WriteTo implements io.WriterTo.WriteTo.
func (u *userSockFprog) WriteTo(writer 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 := writer.Write(buf)
    // Since we bypassed the compiler's escape analysis, indicate that u
    // must live until the use above.
    runtime.KeepAlive(u) // escapes: replaced by intrinsic.
    return int64(length), err
}

// SizeBytes implements marshal.Marshallable.SizeBytes.
func (m *MessageHeader64) SizeBytes() int {
    return 56
}

// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (m *MessageHeader64) MarshalBytes(dst []byte) []byte {
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(m.Name))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint32(dst[:4], uint32(m.NameLen))
    dst = dst[4:]
    // Padding: dst[:sizeof(uint32)] ~= uint32(0)
    dst = dst[4:]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(m.Iov))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(m.IovLen))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(m.Control))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint64(dst[:8], uint64(m.ControlLen))
    dst = dst[8:]
    hostarch.ByteOrder.PutUint32(dst[:4], uint32(m.Flags))
    dst = dst[4:]
    // Padding: dst[:sizeof(int32)] ~= int32(0)
    dst = dst[4:]
    return dst
}

// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (m *MessageHeader64) UnmarshalBytes(src []byte) []byte {
    m.Name = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    m.NameLen = uint32(hostarch.ByteOrder.Uint32(src[:4]))
    src = src[4:]
    // Padding: var _ uint32 ~= src[:sizeof(uint32)]
    src = src[4:]
    m.Iov = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    m.IovLen = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    m.Control = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    m.ControlLen = uint64(hostarch.ByteOrder.Uint64(src[:8]))
    src = src[8:]
    m.Flags = int32(hostarch.ByteOrder.Uint32(src[:4]))
    src = src[4:]
    // Padding: var _ int32 ~= src[:sizeof(int32)]
    src = src[4:]
    return src
}

// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (m *MessageHeader64) Packed() bool {
    return true
}

// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (m *MessageHeader64) MarshalUnsafe(dst []byte) []byte {
    size := m.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(m), uintptr(size))
    return dst[size:]
}

// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (m *MessageHeader64) UnmarshalUnsafe(src []byte) []byte {
    size := m.SizeBytes()
    gohacks.Memmove(unsafe.Pointer(m), unsafe.Pointer(&src[0]), uintptr(size))
    return src[size:]
}

// CopyOutN implements marshal.Marshallable.CopyOutN.
func (m *MessageHeader64) CopyOutN(cc marshal.CopyContext, addr hostarch.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(m)))
    hdr.Len = m.SizeBytes()
    hdr.Cap = m.SizeBytes()

    length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that m
    // must live until the use above.
    runtime.KeepAlive(m) // escapes: replaced by intrinsic.
    return length, err
}

// CopyOut implements marshal.Marshallable.CopyOut.
func (m *MessageHeader64) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return m.CopyOutN(cc, addr, m.SizeBytes())
}

// CopyInN implements marshal.Marshallable.CopyInN.
func (m *MessageHeader64) CopyInN(cc marshal.CopyContext, addr hostarch.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(m)))
    hdr.Len = m.SizeBytes()
    hdr.Cap = m.SizeBytes()

    length, err := cc.CopyInBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that m
    // must live until the use above.
    runtime.KeepAlive(m) // escapes: replaced by intrinsic.
    return length, err
}

// CopyIn implements marshal.Marshallable.CopyIn.
func (m *MessageHeader64) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return m.CopyInN(cc, addr, m.SizeBytes())
}

// WriteTo implements io.WriterTo.WriteTo.
func (m *MessageHeader64) WriteTo(writer 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(m)))
    hdr.Len = m.SizeBytes()
    hdr.Cap = m.SizeBytes()

    length, err := writer.Write(buf)
    // Since we bypassed the compiler's escape analysis, indicate that m
    // must live until the use above.
    runtime.KeepAlive(m) // escapes: replaced by intrinsic.
    return int64(length), err
}

// SizeBytes implements marshal.Marshallable.SizeBytes.
func (m *multipleMessageHeader64) SizeBytes() int {
    return 8 +
        (*MessageHeader64)(nil).SizeBytes()
}

// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (m *multipleMessageHeader64) MarshalBytes(dst []byte) []byte {
    dst = m.msgHdr.MarshalUnsafe(dst)
    hostarch.ByteOrder.PutUint32(dst[:4], uint32(m.msgLen))
    dst = dst[4:]
    // Padding: dst[:sizeof(int32)] ~= int32(0)
    dst = dst[4:]
    return dst
}

// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (m *multipleMessageHeader64) UnmarshalBytes(src []byte) []byte {
    src = m.msgHdr.UnmarshalUnsafe(src)
    m.msgLen = uint32(hostarch.ByteOrder.Uint32(src[:4]))
    src = src[4:]
    // Padding: var _ int32 ~= src[:sizeof(int32)]
    src = src[4:]
    return src
}

// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (m *multipleMessageHeader64) Packed() bool {
    return m.msgHdr.Packed()
}

// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (m *multipleMessageHeader64) MarshalUnsafe(dst []byte) []byte {
    if m.msgHdr.Packed() {
        size := m.SizeBytes()
        gohacks.Memmove(unsafe.Pointer(&dst[0]), unsafe.Pointer(m), uintptr(size))
        return dst[size:]
    }
    // Type multipleMessageHeader64 doesn't have a packed layout in memory, fallback to MarshalBytes.
    return m.MarshalBytes(dst)
}

// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (m *multipleMessageHeader64) UnmarshalUnsafe(src []byte) []byte {
    if m.msgHdr.Packed() {
        size := m.SizeBytes()
        gohacks.Memmove(unsafe.Pointer(m), unsafe.Pointer(&src[0]), uintptr(size))
        return src[size:]
    }
    // Type multipleMessageHeader64 doesn't have a packed layout in memory, fallback to UnmarshalBytes.
    return m.UnmarshalBytes(src)
}

// CopyOutN implements marshal.Marshallable.CopyOutN.
func (m *multipleMessageHeader64) CopyOutN(cc marshal.CopyContext, addr hostarch.Addr, limit int) (int, error) {
    if !m.msgHdr.Packed() {
        // Type multipleMessageHeader64 doesn't have a packed layout in memory, fall back to MarshalBytes.
        buf := cc.CopyScratchBuffer(m.SizeBytes()) // escapes: okay.
        m.MarshalBytes(buf) // escapes: fallback.
        return cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
    }

    // 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(m)))
    hdr.Len = m.SizeBytes()
    hdr.Cap = m.SizeBytes()

    length, err := cc.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that m
    // must live until the use above.
    runtime.KeepAlive(m) // escapes: replaced by intrinsic.
    return length, err
}

// CopyOut implements marshal.Marshallable.CopyOut.
func (m *multipleMessageHeader64) CopyOut(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return m.CopyOutN(cc, addr, m.SizeBytes())
}

// CopyInN implements marshal.Marshallable.CopyInN.
func (m *multipleMessageHeader64) CopyInN(cc marshal.CopyContext, addr hostarch.Addr, limit int) (int, error) {
    if !m.msgHdr.Packed() {
        // Type multipleMessageHeader64 doesn't have a packed layout in memory, fall back to UnmarshalBytes.
        buf := cc.CopyScratchBuffer(m.SizeBytes()) // escapes: okay.
        length, err := cc.CopyInBytes(addr, buf[:limit]) // escapes: okay.
        // Unmarshal unconditionally. If we had a short copy-in, this results in a
        // partially unmarshalled struct.
        m.UnmarshalBytes(buf) // escapes: fallback.
        return length, err
    }

    // 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(m)))
    hdr.Len = m.SizeBytes()
    hdr.Cap = m.SizeBytes()

    length, err := cc.CopyInBytes(addr, buf[:limit]) // escapes: okay.
    // Since we bypassed the compiler's escape analysis, indicate that m
    // must live until the use above.
    runtime.KeepAlive(m) // escapes: replaced by intrinsic.
    return length, err
}

// CopyIn implements marshal.Marshallable.CopyIn.
func (m *multipleMessageHeader64) CopyIn(cc marshal.CopyContext, addr hostarch.Addr) (int, error) {
    return m.CopyInN(cc, addr, m.SizeBytes())
}

// WriteTo implements io.WriterTo.WriteTo.
func (m *multipleMessageHeader64) WriteTo(writer io.Writer) (int64, error) {
    if !m.msgHdr.Packed() {
        // Type multipleMessageHeader64 doesn't have a packed layout in memory, fall back to MarshalBytes.
        buf := make([]byte, m.SizeBytes())
        m.MarshalBytes(buf)
        length, err := writer.Write(buf)
        return int64(length), err
    }

    // 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(m)))
    hdr.Len = m.SizeBytes()
    hdr.Cap = m.SizeBytes()

    length, err := writer.Write(buf)
    // Since we bypassed the compiler's escape analysis, indicate that m
    // must live until the use above.
    runtime.KeepAlive(m) // escapes: replaced by intrinsic.
    return int64(length), err
}