Merge release-20200323.0-251-g3c67754 (automated)

6 files changed, 486 insertions, 4 deletions

diff --git a/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go b/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go
index 3553526b7..1ab6ec3f5 100755
--- a/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_amd64_abi_autogen_unsafe.go
@@ -3,6 +3,7 @@
 // +build amd64
 // +build amd64
 // +build amd64
+// +build amd64
 
 package linux
 
@@ -19,6 +20,7 @@ import (
 
 // Marshallable types used by this file.
 var _ marshal.Marshallable = (*EpollEvent)(nil)
+var _ marshal.Marshallable = (*PtraceRegs)(nil)
 var _ marshal.Marshallable = (*Stat)(nil)
 var _ marshal.Marshallable = (*Timespec)(nil)
 
@@ -300,7 +302,7 @@ func (s *Stat) MarshalUnsafe(dst []byte) {
 
 // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
 func (s *Stat) UnmarshalUnsafe(src []byte) {
-    if s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
+    if s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() {
         safecopy.CopyOut(unsafe.Pointer(s), src)
     } else {
         s.UnmarshalBytes(src)
@@ -310,7 +312,7 @@ func (s *Stat) UnmarshalUnsafe(src []byte) {
 // CopyOutN implements marshal.Marshallable.CopyOutN.
 //go:nosplit
 func (s *Stat) CopyOutN(task marshal.Task, addr usermem.Addr, limit int) (int, error) {
-    if !s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed() {
+    if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
         // Type Stat doesn't have a packed layout in memory, fall back to MarshalBytes.
         buf := task.CopyScratchBuffer(s.SizeBytes()) // escapes: okay.
         s.MarshalBytes(buf) // escapes: fallback.
@@ -388,3 +390,196 @@ func (s *Stat) WriteTo(w io.Writer) (int64, error) {
     return int64(length), err
 }
 
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+func (p *PtraceRegs) SizeBytes() int {
+    return 216
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (p *PtraceRegs) MarshalBytes(dst []byte) {
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R15))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R14))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R13))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R12))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rbp))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rbx))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R11))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R10))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R9))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.R8))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rax))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rcx))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rdx))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rsi))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rdi))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Orig_rax))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rip))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Cs))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Eflags))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Rsp))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Ss))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Fs_base))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Gs_base))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Ds))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Es))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Fs))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Gs))
+    dst = dst[8:]
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (p *PtraceRegs) UnmarshalBytes(src []byte) {
+    p.R15 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R14 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R13 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R12 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rbp = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rbx = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R11 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R10 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R9 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.R8 = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rax = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rcx = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rdx = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rsi = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rdi = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Orig_rax = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rip = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Cs = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Eflags = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Rsp = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Ss = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Fs_base = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Gs_base = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Ds = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Es = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Fs = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Gs = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (p *PtraceRegs) Packed() bool {
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (p *PtraceRegs) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(p))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (p *PtraceRegs) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(p), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (p *PtraceRegs) 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(p)))
+    hdr.Len = p.SizeBytes()
+    hdr.Cap = p.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that p
+    // must live until the use above.
+    runtime.KeepAlive(p)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (p *PtraceRegs) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return p.CopyOutN(task, addr, p.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (p *PtraceRegs) 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(p)))
+    hdr.Len = p.SizeBytes()
+    hdr.Cap = p.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that p
+    // must live until the use above.
+    runtime.KeepAlive(p)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (p *PtraceRegs) 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(p)))
+    hdr.Len = p.SizeBytes()
+    hdr.Cap = p.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that p
+    // must live until the use above.
+    runtime.KeepAlive(p)
+    return int64(length), err
+}
+
diff --git a/pkg/abi/linux/linux_amd64_state_autogen.go b/pkg/abi/linux/linux_amd64_state_autogen.go
index b3e3be0b6..58cabce4c 100755
--- a/pkg/abi/linux/linux_amd64_state_autogen.go
+++ b/pkg/abi/linux/linux_amd64_state_autogen.go
@@ -3,5 +3,77 @@
 // +build amd64
 // +build amd64
 // +build amd64
+// +build amd64
 
 package linux
+
+import (
+	"gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *PtraceRegs) beforeSave() {}
+func (x *PtraceRegs) save(m state.Map) {
+	x.beforeSave()
+	m.Save("R15", &x.R15)
+	m.Save("R14", &x.R14)
+	m.Save("R13", &x.R13)
+	m.Save("R12", &x.R12)
+	m.Save("Rbp", &x.Rbp)
+	m.Save("Rbx", &x.Rbx)
+	m.Save("R11", &x.R11)
+	m.Save("R10", &x.R10)
+	m.Save("R9", &x.R9)
+	m.Save("R8", &x.R8)
+	m.Save("Rax", &x.Rax)
+	m.Save("Rcx", &x.Rcx)
+	m.Save("Rdx", &x.Rdx)
+	m.Save("Rsi", &x.Rsi)
+	m.Save("Rdi", &x.Rdi)
+	m.Save("Orig_rax", &x.Orig_rax)
+	m.Save("Rip", &x.Rip)
+	m.Save("Cs", &x.Cs)
+	m.Save("Eflags", &x.Eflags)
+	m.Save("Rsp", &x.Rsp)
+	m.Save("Ss", &x.Ss)
+	m.Save("Fs_base", &x.Fs_base)
+	m.Save("Gs_base", &x.Gs_base)
+	m.Save("Ds", &x.Ds)
+	m.Save("Es", &x.Es)
+	m.Save("Fs", &x.Fs)
+	m.Save("Gs", &x.Gs)
+}
+
+func (x *PtraceRegs) afterLoad() {}
+func (x *PtraceRegs) load(m state.Map) {
+	m.Load("R15", &x.R15)
+	m.Load("R14", &x.R14)
+	m.Load("R13", &x.R13)
+	m.Load("R12", &x.R12)
+	m.Load("Rbp", &x.Rbp)
+	m.Load("Rbx", &x.Rbx)
+	m.Load("R11", &x.R11)
+	m.Load("R10", &x.R10)
+	m.Load("R9", &x.R9)
+	m.Load("R8", &x.R8)
+	m.Load("Rax", &x.Rax)
+	m.Load("Rcx", &x.Rcx)
+	m.Load("Rdx", &x.Rdx)
+	m.Load("Rsi", &x.Rsi)
+	m.Load("Rdi", &x.Rdi)
+	m.Load("Orig_rax", &x.Orig_rax)
+	m.Load("Rip", &x.Rip)
+	m.Load("Cs", &x.Cs)
+	m.Load("Eflags", &x.Eflags)
+	m.Load("Rsp", &x.Rsp)
+	m.Load("Ss", &x.Ss)
+	m.Load("Fs_base", &x.Fs_base)
+	m.Load("Gs_base", &x.Gs_base)
+	m.Load("Ds", &x.Ds)
+	m.Load("Es", &x.Es)
+	m.Load("Fs", &x.Fs)
+	m.Load("Gs", &x.Gs)
+}
+
+func init() {
+	state.Register("pkg/abi/linux.PtraceRegs", (*PtraceRegs)(nil), state.Fns{Save: (*PtraceRegs).save, Load: (*PtraceRegs).load})
+}
diff --git a/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go b/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go
index a87ef68be..a5a5f78aa 100755
--- a/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_arm64_abi_autogen_unsafe.go
@@ -2,6 +2,7 @@
 
 // +build arm64
 // +build arm64
+// +build arm64
 
 package linux
 
@@ -18,6 +19,7 @@ import (
 
 // Marshallable types used by this file.
 var _ marshal.Marshallable = (*EpollEvent)(nil)
+var _ marshal.Marshallable = (*PtraceRegs)(nil)
 var _ marshal.Marshallable = (*Stat)(nil)
 var _ marshal.Marshallable = (*Timespec)(nil)
 
@@ -307,7 +309,7 @@ func (s *Stat) MarshalUnsafe(dst []byte) {
 
 // UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
 func (s *Stat) UnmarshalUnsafe(src []byte) {
-    if s.MTime.Packed() && s.CTime.Packed() && s.ATime.Packed() {
+    if s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed() {
         safecopy.CopyOut(unsafe.Pointer(s), src)
     } else {
         s.UnmarshalBytes(src)
@@ -373,7 +375,7 @@ func (s *Stat) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
 
 // WriteTo implements io.WriterTo.WriteTo.
 func (s *Stat) WriteTo(w io.Writer) (int64, error) {
-    if !s.ATime.Packed() && s.MTime.Packed() && s.CTime.Packed() {
+    if !s.CTime.Packed() && s.ATime.Packed() && s.MTime.Packed() {
         // Type Stat doesn't have a packed layout in memory, fall back to MarshalBytes.
         buf := make([]byte, s.SizeBytes())
         s.MarshalBytes(buf)
@@ -395,3 +397,109 @@ func (s *Stat) WriteTo(w io.Writer) (int64, error) {
     return int64(length), err
 }
 
+// SizeBytes implements marshal.Marshallable.SizeBytes.
+func (p *PtraceRegs) SizeBytes() int {
+    return 24 +
+        8*31
+}
+
+// MarshalBytes implements marshal.Marshallable.MarshalBytes.
+func (p *PtraceRegs) MarshalBytes(dst []byte) {
+    for idx := 0; idx < 31; idx++ {
+        usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Regs[idx]))
+        dst = dst[8:]
+    }
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Sp))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Pc))
+    dst = dst[8:]
+    usermem.ByteOrder.PutUint64(dst[:8], uint64(p.Pstate))
+    dst = dst[8:]
+}
+
+// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
+func (p *PtraceRegs) UnmarshalBytes(src []byte) {
+    for idx := 0; idx < 31; idx++ {
+        p.Regs[idx] = uint64(usermem.ByteOrder.Uint64(src[:8]))
+        src = src[8:]
+    }
+    p.Sp = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Pc = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+    p.Pstate = uint64(usermem.ByteOrder.Uint64(src[:8]))
+    src = src[8:]
+}
+
+// Packed implements marshal.Marshallable.Packed.
+//go:nosplit
+func (p *PtraceRegs) Packed() bool {
+    return true
+}
+
+// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
+func (p *PtraceRegs) MarshalUnsafe(dst []byte) {
+    safecopy.CopyIn(dst, unsafe.Pointer(p))
+}
+
+// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
+func (p *PtraceRegs) UnmarshalUnsafe(src []byte) {
+    safecopy.CopyOut(unsafe.Pointer(p), src)
+}
+
+// CopyOutN implements marshal.Marshallable.CopyOutN.
+//go:nosplit
+func (p *PtraceRegs) 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(p)))
+    hdr.Len = p.SizeBytes()
+    hdr.Cap = p.SizeBytes()
+
+    length, err := task.CopyOutBytes(addr, buf[:limit]) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that p
+    // must live until the use above.
+    runtime.KeepAlive(p)
+    return length, err
+}
+
+// CopyOut implements marshal.Marshallable.CopyOut.
+//go:nosplit
+func (p *PtraceRegs) CopyOut(task marshal.Task, addr usermem.Addr) (int, error) {
+    return p.CopyOutN(task, addr, p.SizeBytes())
+}
+
+// CopyIn implements marshal.Marshallable.CopyIn.
+//go:nosplit
+func (p *PtraceRegs) 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(p)))
+    hdr.Len = p.SizeBytes()
+    hdr.Cap = p.SizeBytes()
+
+    length, err := task.CopyInBytes(addr, buf) // escapes: okay.
+    // Since we bypassed the compiler's escape analysis, indicate that p
+    // must live until the use above.
+    runtime.KeepAlive(p)
+    return length, err
+}
+
+// WriteTo implements io.WriterTo.WriteTo.
+func (p *PtraceRegs) 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(p)))
+    hdr.Len = p.SizeBytes()
+    hdr.Cap = p.SizeBytes()
+
+    length, err := w.Write(buf)
+    // Since we bypassed the compiler's escape analysis, indicate that p
+    // must live until the use above.
+    runtime.KeepAlive(p)
+    return int64(length), err
+}
+
diff --git a/pkg/abi/linux/linux_arm64_state_autogen.go b/pkg/abi/linux/linux_arm64_state_autogen.go
index b144adbda..301a5cb76 100755
--- a/pkg/abi/linux/linux_arm64_state_autogen.go
+++ b/pkg/abi/linux/linux_arm64_state_autogen.go
@@ -2,5 +2,31 @@
 
 // +build arm64
 // +build arm64
+// +build arm64
 
 package linux
+
+import (
+	"gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *PtraceRegs) beforeSave() {}
+func (x *PtraceRegs) save(m state.Map) {
+	x.beforeSave()
+	m.Save("Regs", &x.Regs)
+	m.Save("Sp", &x.Sp)
+	m.Save("Pc", &x.Pc)
+	m.Save("Pstate", &x.Pstate)
+}
+
+func (x *PtraceRegs) afterLoad() {}
+func (x *PtraceRegs) load(m state.Map) {
+	m.Load("Regs", &x.Regs)
+	m.Load("Sp", &x.Sp)
+	m.Load("Pc", &x.Pc)
+	m.Load("Pstate", &x.Pstate)
+}
+
+func init() {
+	state.Register("pkg/abi/linux.PtraceRegs", (*PtraceRegs)(nil), state.Fns{Save: (*PtraceRegs).save, Load: (*PtraceRegs).load})
+}
diff --git a/pkg/abi/linux/ptrace_amd64.go b/pkg/abi/linux/ptrace_amd64.go
new file mode 100755
index 000000000..ed3881e27
--- /dev/null
+++ b/pkg/abi/linux/ptrace_amd64.go
@@ -0,0 +1,52 @@
+// 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.
+
+// +build amd64
+
+package linux
+
+// PtraceRegs is the set of CPU registers exposed by ptrace. Source:
+// syscall.PtraceRegs.
+//
+// +marshal
+// +stateify savable
+type PtraceRegs struct {
+	R15      uint64
+	R14      uint64
+	R13      uint64
+	R12      uint64
+	Rbp      uint64
+	Rbx      uint64
+	R11      uint64
+	R10      uint64
+	R9       uint64
+	R8       uint64
+	Rax      uint64
+	Rcx      uint64
+	Rdx      uint64
+	Rsi      uint64
+	Rdi      uint64
+	Orig_rax uint64
+	Rip      uint64
+	Cs       uint64
+	Eflags   uint64
+	Rsp      uint64
+	Ss       uint64
+	Fs_base  uint64
+	Gs_base  uint64
+	Ds       uint64
+	Es       uint64
+	Fs       uint64
+	Gs       uint64
+}
diff --git a/pkg/abi/linux/ptrace_arm64.go b/pkg/abi/linux/ptrace_arm64.go
new file mode 100755
index 000000000..6147738b3
--- /dev/null
+++ b/pkg/abi/linux/ptrace_arm64.go
@@ -0,0 +1,29 @@
+// Copyright 2019 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.
+
+// +build arm64
+
+package linux
+
+// PtraceRegs is the set of CPU registers exposed by ptrace. Source:
+// syscall.PtraceRegs.
+//
+// +marshal
+// +stateify savable
+type PtraceRegs struct {
+	Regs   [31]uint64
+	Sp     uint64
+	Pc     uint64
+	Pstate uint64
+}