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-rw-r--r--pkg/abi/linux/linux_abi_autogen_unsafe.go20
-rw-r--r--pkg/sentry/platform/ring0/defs_impl_arm64.go4
-rw-r--r--tools/go_marshal/marshal/marshal_impl_util.go78
3 files changed, 90 insertions, 12 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go
index 8ad27da56..99461368f 100644
--- a/pkg/abi/linux/linux_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go
@@ -150,7 +150,7 @@ func (s *Statx) Packed() bool {
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (s *Statx) MarshalUnsafe(dst []byte) {
- if s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() {
+ if s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(s))
} else {
// Type Statx doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -160,7 +160,7 @@ func (s *Statx) MarshalUnsafe(dst []byte) {
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (s *Statx) UnmarshalUnsafe(src []byte) {
- if s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() {
+ if s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() {
safecopy.CopyOut(unsafe.Pointer(s), src)
} else {
// Type Statx doesn't have a packed layout in memory, fallback to UnmarshalBytes.
@@ -171,7 +171,7 @@ func (s *Statx) UnmarshalUnsafe(src []byte) {
// CopyOutN implements marshal.Marshallable.CopyOutN.
//go:nosplit
func (s *Statx) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
- if !s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() {
+ if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() {
// Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := task.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
s.MarshalBytes(buf) // escapes: fallback.
@@ -227,7 +227,7 @@ func (s *Statx) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (s *Statx) WriteTo(w io.Writer) (int64, error) {
- if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() {
+ if !s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() {
// Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, s.SizeBytes())
s.MarshalBytes(buf)
@@ -635,7 +635,7 @@ func (f *FUSEHeaderIn) MarshalUnsafe(dst []byte) {
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (f *FUSEHeaderIn) UnmarshalUnsafe(src []byte) {
- if f.Unique.Packed() && f.Opcode.Packed() {
+ if f.Opcode.Packed() && f.Unique.Packed() {
safecopy.CopyOut(unsafe.Pointer(f), src)
} else {
// Type FUSEHeaderIn doesn't have a packed layout in memory, fallback to UnmarshalBytes.
@@ -1630,7 +1630,7 @@ func (i *IPTEntry) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (i *IPTEntry) Packed() bool {
- return i.IP.Packed() && i.Counters.Packed()
+ return i.Counters.Packed() && i.IP.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
@@ -1656,7 +1656,7 @@ func (i *IPTEntry) UnmarshalUnsafe(src []byte) {
// CopyOutN implements marshal.Marshallable.CopyOutN.
//go:nosplit
func (i *IPTEntry) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
- if !i.IP.Packed() && i.Counters.Packed() {
+ if !i.Counters.Packed() && i.IP.Packed() {
// Type IPTEntry doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay.
i.MarshalBytes(buf) // escapes: fallback.
@@ -1818,12 +1818,12 @@ func (i *IPTIP) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (i *IPTIP) Packed() bool {
- return i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() && i.Src.Packed()
+ return i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (i *IPTIP) MarshalUnsafe(dst []byte) {
- if i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() {
+ if i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() {
safecopy.CopyIn(dst, unsafe.Pointer(i))
} else {
// Type IPTIP doesn't have a packed layout in memory, fallback to MarshalBytes.
@@ -1844,7 +1844,7 @@ func (i *IPTIP) UnmarshalUnsafe(src []byte) {
// CopyOutN implements marshal.Marshallable.CopyOutN.
//go:nosplit
func (i *IPTIP) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
- if !i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() && i.DstMask.Packed() {
+ if !i.DstMask.Packed() && i.Src.Packed() && i.Dst.Packed() && i.SrcMask.Packed() {
// Type IPTIP doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := task.CopyScratchBuffer(i.SizeBytes()) // escapes: okay.
i.MarshalBytes(buf) // escapes: fallback.
diff --git a/pkg/sentry/platform/ring0/defs_impl_arm64.go b/pkg/sentry/platform/ring0/defs_impl_arm64.go
index 424b66f76..eba2eac30 100644
--- a/pkg/sentry/platform/ring0/defs_impl_arm64.go
+++ b/pkg/sentry/platform/ring0/defs_impl_arm64.go
@@ -3,11 +3,11 @@ package ring0
import (
"gvisor.dev/gvisor/pkg/sentry/arch"
"gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables"
+ "io"
+ "reflect"
"fmt"
"gvisor.dev/gvisor/pkg/usermem"
- "io"
- "reflect"
)
// Useful bits.
diff --git a/tools/go_marshal/marshal/marshal_impl_util.go b/tools/go_marshal/marshal/marshal_impl_util.go
new file mode 100644
index 000000000..89c7d3575
--- /dev/null
+++ b/tools/go_marshal/marshal/marshal_impl_util.go
@@ -0,0 +1,78 @@
+// 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 marshal
+
+import (
+ "io"
+
+ "gvisor.dev/gvisor/pkg/usermem"
+)
+
+// StubMarshallable implements the Marshallable interface.
+// StubMarshallable is a convenient embeddable type for satisfying the
+// marshallable interface, but provides no actual implementation. It is
+// useful when the marshallable interface needs to be implemented manually,
+// but the caller doesn't require the full marshallable interface.
+type StubMarshallable struct{}
+
+// WriteTo implements Marshallable.WriteTo.
+func (StubMarshallable) WriteTo(w io.Writer) (n int64, err error) {
+ panic("Please implement your own WriteTo function")
+}
+
+// SizeBytes implements Marshallable.SizeBytes.
+func (StubMarshallable) SizeBytes() int {
+ panic("Please implement your own SizeBytes function")
+}
+
+// MarshalBytes implements Marshallable.MarshalBytes.
+func (StubMarshallable) MarshalBytes(dst []byte) {
+ panic("Please implement your own MarshalBytes function")
+}
+
+// UnmarshalBytes implements Marshallable.UnmarshalBytes.
+func (StubMarshallable) UnmarshalBytes(src []byte) {
+ panic("Please implement your own UnMarshalBytes function")
+}
+
+// Packed implements Marshallable.Packed.
+func (StubMarshallable) Packed() bool {
+ panic("Please implement your own Packed function")
+}
+
+// MarshalUnsafe implements Marshallable.MarshalUnsafe.
+func (StubMarshallable) MarshalUnsafe(dst []byte) {
+ panic("Please implement your own MarshalUnsafe function")
+}
+
+// UnmarshalUnsafe implements Marshallable.UnmarshalUnsafe.
+func (StubMarshallable) UnmarshalUnsafe(src []byte) {
+ panic("Please implement your own UnmarshalUnsafe function")
+}
+
+// CopyIn implements Marshallable.CopyIn.
+func (StubMarshallable) CopyIn(task Task, addr usermem.Addr) (int, error) {
+ panic("Please implement your own CopyIn function")
+}
+
+// CopyOut implements Marshallable.CopyOut.
+func (StubMarshallable) CopyOut(task Task, addr usermem.Addr) (int, error) {
+ panic("Please implement your own CopyOut function")
+}
+
+// CopyOutN implements Marshallable.CopyOutN.
+func (StubMarshallable) CopyOutN(task Task, addr usermem.Addr, limit int) (int, error) {
+ panic("Please implement your own CopyOutN function")
+}