15 files changed, 931 insertions, 140 deletions
diff --git a/pkg/sentry/arch/BUILD b/pkg/sentry/arch/BUILD
deleted file mode 100644
index e27f21e5e..000000000
--- a/pkg/sentry/arch/BUILD
+++ /dev/null
@@ -1,48 +0,0 @@
-load("//tools:defs.bzl", "go_library", "proto_library")
-
-package(licenses = ["notice"])
-
-go_library(
-    name = "arch",
-    srcs = [
-        "aligned.go",
-        "arch.go",
-        "arch_aarch64.go",
-        "arch_amd64.go",
-        "arch_amd64.s",
-        "arch_arm64.go",
-        "arch_state_aarch64.go",
-        "arch_state_x86.go",
-        "arch_x86.go",
-        "arch_x86_impl.go",
-        "auxv.go",
-        "signal.go",
-        "signal_act.go",
-        "signal_amd64.go",
-        "signal_arm64.go",
-        "signal_info.go",
-        "signal_stack.go",
-        "stack.go",
-        "syscalls_amd64.go",
-        "syscalls_arm64.go",
-    ],
-    visibility = ["//:sandbox"],
-    deps = [
-        ":registers_go_proto",
-        "//pkg/abi/linux",
-        "//pkg/binary",
-        "//pkg/context",
-        "//pkg/cpuid",
-        "//pkg/log",
-        "//pkg/sentry/limits",
-        "//pkg/sync",
-        "//pkg/syserror",
-        "//pkg/usermem",
-    ],
-)
-
-proto_library(
-    name = "registers",
-    srcs = ["registers.proto"],
-    visibility = ["//visibility:public"],
-)
diff --git a/pkg/sentry/arch/arch_aarch64.go b/pkg/sentry/arch/arch_aarch64.go
index 5053393c1..5053393c1 100644..100755
--- a/pkg/sentry/arch/arch_aarch64.go
+++ b/pkg/sentry/arch/arch_aarch64.go
diff --git a/pkg/sentry/arch/arch_aarch64_state_autogen.go b/pkg/sentry/arch/arch_aarch64_state_autogen.go
new file mode 100755
index 000000000..9c6dfdf2e
--- /dev/null
+++ b/pkg/sentry/arch/arch_aarch64_state_autogen.go
@@ -0,0 +1,6 @@
+// automatically generated by stateify.
+
+// +build arm64
+// +build arm64
+
+package arch
diff --git a/pkg/sentry/arch/arch_amd64_state_autogen.go b/pkg/sentry/arch/arch_amd64_state_autogen.go
new file mode 100755
index 000000000..73c523c90
--- /dev/null
+++ b/pkg/sentry/arch/arch_amd64_state_autogen.go
@@ -0,0 +1,28 @@
+// automatically generated by stateify.
+
+// +build amd64
+// +build amd64
+// +build amd64
+
+package arch
+
+import (
+	"gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *context64) beforeSave() {}
+func (x *context64) save(m state.Map) {
+	x.beforeSave()
+	m.Save("State", &x.State)
+	m.Save("sigFPState", &x.sigFPState)
+}
+
+func (x *context64) afterLoad() {}
+func (x *context64) load(m state.Map) {
+	m.Load("State", &x.State)
+	m.Load("sigFPState", &x.sigFPState)
+}
+
+func init() {
+	state.Register("pkg/sentry/arch.context64", (*context64)(nil), state.Fns{Save: (*context64).save, Load: (*context64).load})
+}
diff --git a/pkg/sentry/arch/arch_arm64.go b/pkg/sentry/arch/arch_arm64.go
index 885115ae2..885115ae2 100644..100755
--- a/pkg/sentry/arch/arch_arm64.go
+++ b/pkg/sentry/arch/arch_arm64.go
diff --git a/pkg/sentry/arch/arch_arm64_state_autogen.go b/pkg/sentry/arch/arch_arm64_state_autogen.go
new file mode 100755
index 000000000..49f2e3d67
--- /dev/null
+++ b/pkg/sentry/arch/arch_arm64_state_autogen.go
@@ -0,0 +1,5 @@
+// automatically generated by stateify.
+
+// +build arm64
+
+package arch
diff --git a/pkg/sentry/arch/arch_impl_state_autogen.go b/pkg/sentry/arch/arch_impl_state_autogen.go
new file mode 100755
index 000000000..8b567801f
--- /dev/null
+++ b/pkg/sentry/arch/arch_impl_state_autogen.go
@@ -0,0 +1,29 @@
+// automatically generated by stateify.
+
+// +build amd64 i386
+
+package arch
+
+import (
+	"gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *State) beforeSave() {}
+func (x *State) save(m state.Map) {
+	x.beforeSave()
+	var Regs syscallPtraceRegs = x.saveRegs()
+	m.SaveValue("Regs", Regs)
+	m.Save("x86FPState", &x.x86FPState)
+	m.Save("FeatureSet", &x.FeatureSet)
+}
+
+func (x *State) load(m state.Map) {
+	m.LoadWait("x86FPState", &x.x86FPState)
+	m.Load("FeatureSet", &x.FeatureSet)
+	m.LoadValue("Regs", new(syscallPtraceRegs), func(y interface{}) { x.loadRegs(y.(syscallPtraceRegs)) })
+	m.AfterLoad(x.afterLoad)
+}
+
+func init() {
+	state.Register("pkg/sentry/arch.State", (*State)(nil), state.Fns{Save: (*State).save, Load: (*State).load})
+}
diff --git a/pkg/sentry/arch/arch_state_aarch64.go b/pkg/sentry/arch/arch_state_aarch64.go
index 0136a85ad..0136a85ad 100644..100755
--- a/pkg/sentry/arch/arch_state_aarch64.go
+++ b/pkg/sentry/arch/arch_state_aarch64.go
diff --git a/pkg/sentry/arch/arch_state_autogen.go b/pkg/sentry/arch/arch_state_autogen.go
new file mode 100755
index 000000000..a06d96c71
--- /dev/null
+++ b/pkg/sentry/arch/arch_state_autogen.go
@@ -0,0 +1,166 @@
+// automatically generated by stateify.
+
+// +build amd64 i386
+// +build amd64 i386
+// +build i386 amd64 arm64
+
+package arch
+
+import (
+	"gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *MmapLayout) beforeSave() {}
+func (x *MmapLayout) save(m state.Map) {
+	x.beforeSave()
+	m.Save("MinAddr", &x.MinAddr)
+	m.Save("MaxAddr", &x.MaxAddr)
+	m.Save("BottomUpBase", &x.BottomUpBase)
+	m.Save("TopDownBase", &x.TopDownBase)
+	m.Save("DefaultDirection", &x.DefaultDirection)
+	m.Save("MaxStackRand", &x.MaxStackRand)
+}
+
+func (x *MmapLayout) afterLoad() {}
+func (x *MmapLayout) load(m state.Map) {
+	m.Load("MinAddr", &x.MinAddr)
+	m.Load("MaxAddr", &x.MaxAddr)
+	m.Load("BottomUpBase", &x.BottomUpBase)
+	m.Load("TopDownBase", &x.TopDownBase)
+	m.Load("DefaultDirection", &x.DefaultDirection)
+	m.Load("MaxStackRand", &x.MaxStackRand)
+}
+
+func (x *syscallPtraceRegs) beforeSave() {}
+func (x *syscallPtraceRegs) 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 *syscallPtraceRegs) afterLoad() {}
+func (x *syscallPtraceRegs) 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 (x *AuxEntry) beforeSave() {}
+func (x *AuxEntry) save(m state.Map) {
+	x.beforeSave()
+	m.Save("Key", &x.Key)
+	m.Save("Value", &x.Value)
+}
+
+func (x *AuxEntry) afterLoad() {}
+func (x *AuxEntry) load(m state.Map) {
+	m.Load("Key", &x.Key)
+	m.Load("Value", &x.Value)
+}
+
+func (x *SignalAct) beforeSave() {}
+func (x *SignalAct) save(m state.Map) {
+	x.beforeSave()
+	m.Save("Handler", &x.Handler)
+	m.Save("Flags", &x.Flags)
+	m.Save("Restorer", &x.Restorer)
+	m.Save("Mask", &x.Mask)
+}
+
+func (x *SignalAct) afterLoad() {}
+func (x *SignalAct) load(m state.Map) {
+	m.Load("Handler", &x.Handler)
+	m.Load("Flags", &x.Flags)
+	m.Load("Restorer", &x.Restorer)
+	m.Load("Mask", &x.Mask)
+}
+
+func (x *SignalStack) beforeSave() {}
+func (x *SignalStack) save(m state.Map) {
+	x.beforeSave()
+	m.Save("Addr", &x.Addr)
+	m.Save("Flags", &x.Flags)
+	m.Save("Size", &x.Size)
+}
+
+func (x *SignalStack) afterLoad() {}
+func (x *SignalStack) load(m state.Map) {
+	m.Load("Addr", &x.Addr)
+	m.Load("Flags", &x.Flags)
+	m.Load("Size", &x.Size)
+}
+
+func (x *SignalInfo) beforeSave() {}
+func (x *SignalInfo) save(m state.Map) {
+	x.beforeSave()
+	m.Save("Signo", &x.Signo)
+	m.Save("Errno", &x.Errno)
+	m.Save("Code", &x.Code)
+	m.Save("Fields", &x.Fields)
+}
+
+func (x *SignalInfo) afterLoad() {}
+func (x *SignalInfo) load(m state.Map) {
+	m.Load("Signo", &x.Signo)
+	m.Load("Errno", &x.Errno)
+	m.Load("Code", &x.Code)
+	m.Load("Fields", &x.Fields)
+}
+
+func init() {
+	state.Register("pkg/sentry/arch.MmapLayout", (*MmapLayout)(nil), state.Fns{Save: (*MmapLayout).save, Load: (*MmapLayout).load})
+	state.Register("pkg/sentry/arch.syscallPtraceRegs", (*syscallPtraceRegs)(nil), state.Fns{Save: (*syscallPtraceRegs).save, Load: (*syscallPtraceRegs).load})
+	state.Register("pkg/sentry/arch.AuxEntry", (*AuxEntry)(nil), state.Fns{Save: (*AuxEntry).save, Load: (*AuxEntry).load})
+	state.Register("pkg/sentry/arch.SignalAct", (*SignalAct)(nil), state.Fns{Save: (*SignalAct).save, Load: (*SignalAct).load})
+	state.Register("pkg/sentry/arch.SignalStack", (*SignalStack)(nil), state.Fns{Save: (*SignalStack).save, Load: (*SignalStack).load})
+	state.Register("pkg/sentry/arch.SignalInfo", (*SignalInfo)(nil), state.Fns{Save: (*SignalInfo).save, Load: (*SignalInfo).load})
+}
diff --git a/pkg/sentry/arch/arch_x86_impl.go b/pkg/sentry/arch/arch_x86_impl.go
index 04ac283c6..04ac283c6 100644..100755
--- a/pkg/sentry/arch/arch_x86_impl.go
+++ b/pkg/sentry/arch/arch_x86_impl.go
diff --git a/pkg/sentry/arch/registers.proto b/pkg/sentry/arch/registers.proto
deleted file mode 100644
index 60c027aab..000000000
--- a/pkg/sentry/arch/registers.proto
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright 2018 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.
-
-syntax = "proto3";
-
-package gvisor;
-
-message AMD64Registers {
-  uint64 rax = 1;
-  uint64 rbx = 2;
-  uint64 rcx = 3;
-  uint64 rdx = 4;
-  uint64 rsi = 5;
-  uint64 rdi = 6;
-  uint64 rsp = 7;
-  uint64 rbp = 8;
-
-  uint64 r8 = 9;
-  uint64 r9 = 10;
-  uint64 r10 = 11;
-  uint64 r11 = 12;
-  uint64 r12 = 13;
-  uint64 r13 = 14;
-  uint64 r14 = 15;
-  uint64 r15 = 16;
-
-  uint64 rip = 17;
-  uint64 rflags = 18;
-  uint64 orig_rax = 19;
-  uint64 cs = 20;
-  uint64 ds = 21;
-  uint64 es = 22;
-  uint64 fs = 23;
-  uint64 gs = 24;
-  uint64 ss = 25;
-  uint64 fs_base = 26;
-  uint64 gs_base = 27;
-}
-
-message ARM64Registers {
-  uint64 r0 = 1;
-  uint64 r1 = 2;
-  uint64 r2 = 3;
-  uint64 r3 = 4;
-  uint64 r4 = 5;
-  uint64 r5 = 6;
-  uint64 r6 = 7;
-  uint64 r7 = 8;
-  uint64 r8 = 9;
-  uint64 r9 = 10;
-  uint64 r10 = 11;
-  uint64 r11 = 12;
-  uint64 r12 = 13;
-  uint64 r13 = 14;
-  uint64 r14 = 15;
-  uint64 r15 = 16;
-  uint64 r16 = 17;
-  uint64 r17 = 18;
-  uint64 r18 = 19;
-  uint64 r19 = 20;
-  uint64 r20 = 21;
-  uint64 r21 = 22;
-  uint64 r22 = 23;
-  uint64 r23 = 24;
-  uint64 r24 = 25;
-  uint64 r25 = 26;
-  uint64 r26 = 27;
-  uint64 r27 = 28;
-  uint64 r28 = 29;
-  uint64 r29 = 30;
-  uint64 r30 = 31;
-  uint64 sp = 32;
-  uint64 pc = 33;
-  uint64 pstate = 34;
-}
-message Registers {
-  oneof arch {
-    AMD64Registers amd64 = 1;
-    ARM64Registers arm64 = 2;
-  }
-}
diff --git a/pkg/sentry/arch/registers_go_proto/registers.pb.go b/pkg/sentry/arch/registers_go_proto/registers.pb.go
new file mode 100755
index 000000000..c4e9584b5
--- /dev/null
+++ b/pkg/sentry/arch/registers_go_proto/registers.pb.go
@@ -0,0 +1,697 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: pkg/sentry/arch/registers.proto
+
+package gvisor
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	math "math"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+type AMD64Registers struct {
+	Rax                  uint64   `protobuf:"varint,1,opt,name=rax,proto3" json:"rax,omitempty"`
+	Rbx                  uint64   `protobuf:"varint,2,opt,name=rbx,proto3" json:"rbx,omitempty"`
+	Rcx                  uint64   `protobuf:"varint,3,opt,name=rcx,proto3" json:"rcx,omitempty"`
+	Rdx                  uint64   `protobuf:"varint,4,opt,name=rdx,proto3" json:"rdx,omitempty"`
+	Rsi                  uint64   `protobuf:"varint,5,opt,name=rsi,proto3" json:"rsi,omitempty"`
+	Rdi                  uint64   `protobuf:"varint,6,opt,name=rdi,proto3" json:"rdi,omitempty"`
+	Rsp                  uint64   `protobuf:"varint,7,opt,name=rsp,proto3" json:"rsp,omitempty"`
+	Rbp                  uint64   `protobuf:"varint,8,opt,name=rbp,proto3" json:"rbp,omitempty"`
+	R8                   uint64   `protobuf:"varint,9,opt,name=r8,proto3" json:"r8,omitempty"`
+	R9                   uint64   `protobuf:"varint,10,opt,name=r9,proto3" json:"r9,omitempty"`
+	R10                  uint64   `protobuf:"varint,11,opt,name=r10,proto3" json:"r10,omitempty"`
+	R11                  uint64   `protobuf:"varint,12,opt,name=r11,proto3" json:"r11,omitempty"`
+	R12                  uint64   `protobuf:"varint,13,opt,name=r12,proto3" json:"r12,omitempty"`
+	R13                  uint64   `protobuf:"varint,14,opt,name=r13,proto3" json:"r13,omitempty"`
+	R14                  uint64   `protobuf:"varint,15,opt,name=r14,proto3" json:"r14,omitempty"`
+	R15                  uint64   `protobuf:"varint,16,opt,name=r15,proto3" json:"r15,omitempty"`
+	Rip                  uint64   `protobuf:"varint,17,opt,name=rip,proto3" json:"rip,omitempty"`
+	Rflags               uint64   `protobuf:"varint,18,opt,name=rflags,proto3" json:"rflags,omitempty"`
+	OrigRax              uint64   `protobuf:"varint,19,opt,name=orig_rax,json=origRax,proto3" json:"orig_rax,omitempty"`
+	Cs                   uint64   `protobuf:"varint,20,opt,name=cs,proto3" json:"cs,omitempty"`
+	Ds                   uint64   `protobuf:"varint,21,opt,name=ds,proto3" json:"ds,omitempty"`
+	Es                   uint64   `protobuf:"varint,22,opt,name=es,proto3" json:"es,omitempty"`
+	Fs                   uint64   `protobuf:"varint,23,opt,name=fs,proto3" json:"fs,omitempty"`
+	Gs                   uint64   `protobuf:"varint,24,opt,name=gs,proto3" json:"gs,omitempty"`
+	Ss                   uint64   `protobuf:"varint,25,opt,name=ss,proto3" json:"ss,omitempty"`
+	FsBase               uint64   `protobuf:"varint,26,opt,name=fs_base,json=fsBase,proto3" json:"fs_base,omitempty"`
+	GsBase               uint64   `protobuf:"varint,27,opt,name=gs_base,json=gsBase,proto3" json:"gs_base,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *AMD64Registers) Reset()         { *m = AMD64Registers{} }
+func (m *AMD64Registers) String() string { return proto.CompactTextString(m) }
+func (*AMD64Registers) ProtoMessage()    {}
+func (*AMD64Registers) Descriptor() ([]byte, []int) {
+	return fileDescriptor_082b7510610e0457, []int{0}
+}
+
+func (m *AMD64Registers) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_AMD64Registers.Unmarshal(m, b)
+}
+func (m *AMD64Registers) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_AMD64Registers.Marshal(b, m, deterministic)
+}
+func (m *AMD64Registers) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_AMD64Registers.Merge(m, src)
+}
+func (m *AMD64Registers) XXX_Size() int {
+	return xxx_messageInfo_AMD64Registers.Size(m)
+}
+func (m *AMD64Registers) XXX_DiscardUnknown() {
+	xxx_messageInfo_AMD64Registers.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_AMD64Registers proto.InternalMessageInfo
+
+func (m *AMD64Registers) GetRax() uint64 {
+	if m != nil {
+		return m.Rax
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRbx() uint64 {
+	if m != nil {
+		return m.Rbx
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRcx() uint64 {
+	if m != nil {
+		return m.Rcx
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRdx() uint64 {
+	if m != nil {
+		return m.Rdx
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRsi() uint64 {
+	if m != nil {
+		return m.Rsi
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRdi() uint64 {
+	if m != nil {
+		return m.Rdi
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRsp() uint64 {
+	if m != nil {
+		return m.Rsp
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRbp() uint64 {
+	if m != nil {
+		return m.Rbp
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR8() uint64 {
+	if m != nil {
+		return m.R8
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR9() uint64 {
+	if m != nil {
+		return m.R9
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR10() uint64 {
+	if m != nil {
+		return m.R10
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR11() uint64 {
+	if m != nil {
+		return m.R11
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR12() uint64 {
+	if m != nil {
+		return m.R12
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR13() uint64 {
+	if m != nil {
+		return m.R13
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR14() uint64 {
+	if m != nil {
+		return m.R14
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetR15() uint64 {
+	if m != nil {
+		return m.R15
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRip() uint64 {
+	if m != nil {
+		return m.Rip
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetRflags() uint64 {
+	if m != nil {
+		return m.Rflags
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetOrigRax() uint64 {
+	if m != nil {
+		return m.OrigRax
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetCs() uint64 {
+	if m != nil {
+		return m.Cs
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetDs() uint64 {
+	if m != nil {
+		return m.Ds
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetEs() uint64 {
+	if m != nil {
+		return m.Es
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetFs() uint64 {
+	if m != nil {
+		return m.Fs
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetGs() uint64 {
+	if m != nil {
+		return m.Gs
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetSs() uint64 {
+	if m != nil {
+		return m.Ss
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetFsBase() uint64 {
+	if m != nil {
+		return m.FsBase
+	}
+	return 0
+}
+
+func (m *AMD64Registers) GetGsBase() uint64 {
+	if m != nil {
+		return m.GsBase
+	}
+	return 0
+}
+
+type ARM64Registers struct {
+	R0                   uint64   `protobuf:"varint,1,opt,name=r0,proto3" json:"r0,omitempty"`
+	R1                   uint64   `protobuf:"varint,2,opt,name=r1,proto3" json:"r1,omitempty"`
+	R2                   uint64   `protobuf:"varint,3,opt,name=r2,proto3" json:"r2,omitempty"`
+	R3                   uint64   `protobuf:"varint,4,opt,name=r3,proto3" json:"r3,omitempty"`
+	R4                   uint64   `protobuf:"varint,5,opt,name=r4,proto3" json:"r4,omitempty"`
+	R5                   uint64   `protobuf:"varint,6,opt,name=r5,proto3" json:"r5,omitempty"`
+	R6                   uint64   `protobuf:"varint,7,opt,name=r6,proto3" json:"r6,omitempty"`
+	R7                   uint64   `protobuf:"varint,8,opt,name=r7,proto3" json:"r7,omitempty"`
+	R8                   uint64   `protobuf:"varint,9,opt,name=r8,proto3" json:"r8,omitempty"`
+	R9                   uint64   `protobuf:"varint,10,opt,name=r9,proto3" json:"r9,omitempty"`
+	R10                  uint64   `protobuf:"varint,11,opt,name=r10,proto3" json:"r10,omitempty"`
+	R11                  uint64   `protobuf:"varint,12,opt,name=r11,proto3" json:"r11,omitempty"`
+	R12                  uint64   `protobuf:"varint,13,opt,name=r12,proto3" json:"r12,omitempty"`
+	R13                  uint64   `protobuf:"varint,14,opt,name=r13,proto3" json:"r13,omitempty"`
+	R14                  uint64   `protobuf:"varint,15,opt,name=r14,proto3" json:"r14,omitempty"`
+	R15                  uint64   `protobuf:"varint,16,opt,name=r15,proto3" json:"r15,omitempty"`
+	R16                  uint64   `protobuf:"varint,17,opt,name=r16,proto3" json:"r16,omitempty"`
+	R17                  uint64   `protobuf:"varint,18,opt,name=r17,proto3" json:"r17,omitempty"`
+	R18                  uint64   `protobuf:"varint,19,opt,name=r18,proto3" json:"r18,omitempty"`
+	R19                  uint64   `protobuf:"varint,20,opt,name=r19,proto3" json:"r19,omitempty"`
+	R20                  uint64   `protobuf:"varint,21,opt,name=r20,proto3" json:"r20,omitempty"`
+	R21                  uint64   `protobuf:"varint,22,opt,name=r21,proto3" json:"r21,omitempty"`
+	R22                  uint64   `protobuf:"varint,23,opt,name=r22,proto3" json:"r22,omitempty"`
+	R23                  uint64   `protobuf:"varint,24,opt,name=r23,proto3" json:"r23,omitempty"`
+	R24                  uint64   `protobuf:"varint,25,opt,name=r24,proto3" json:"r24,omitempty"`
+	R25                  uint64   `protobuf:"varint,26,opt,name=r25,proto3" json:"r25,omitempty"`
+	R26                  uint64   `protobuf:"varint,27,opt,name=r26,proto3" json:"r26,omitempty"`
+	R27                  uint64   `protobuf:"varint,28,opt,name=r27,proto3" json:"r27,omitempty"`
+	R28                  uint64   `protobuf:"varint,29,opt,name=r28,proto3" json:"r28,omitempty"`
+	R29                  uint64   `protobuf:"varint,30,opt,name=r29,proto3" json:"r29,omitempty"`
+	R30                  uint64   `protobuf:"varint,31,opt,name=r30,proto3" json:"r30,omitempty"`
+	Sp                   uint64   `protobuf:"varint,32,opt,name=sp,proto3" json:"sp,omitempty"`
+	Pc                   uint64   `protobuf:"varint,33,opt,name=pc,proto3" json:"pc,omitempty"`
+	Pstate               uint64   `protobuf:"varint,34,opt,name=pstate,proto3" json:"pstate,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ARM64Registers) Reset()         { *m = ARM64Registers{} }
+func (m *ARM64Registers) String() string { return proto.CompactTextString(m) }
+func (*ARM64Registers) ProtoMessage()    {}
+func (*ARM64Registers) Descriptor() ([]byte, []int) {
+	return fileDescriptor_082b7510610e0457, []int{1}
+}
+
+func (m *ARM64Registers) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ARM64Registers.Unmarshal(m, b)
+}
+func (m *ARM64Registers) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ARM64Registers.Marshal(b, m, deterministic)
+}
+func (m *ARM64Registers) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ARM64Registers.Merge(m, src)
+}
+func (m *ARM64Registers) XXX_Size() int {
+	return xxx_messageInfo_ARM64Registers.Size(m)
+}
+func (m *ARM64Registers) XXX_DiscardUnknown() {
+	xxx_messageInfo_ARM64Registers.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ARM64Registers proto.InternalMessageInfo
+
+func (m *ARM64Registers) GetR0() uint64 {
+	if m != nil {
+		return m.R0
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR1() uint64 {
+	if m != nil {
+		return m.R1
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR2() uint64 {
+	if m != nil {
+		return m.R2
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR3() uint64 {
+	if m != nil {
+		return m.R3
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR4() uint64 {
+	if m != nil {
+		return m.R4
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR5() uint64 {
+	if m != nil {
+		return m.R5
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR6() uint64 {
+	if m != nil {
+		return m.R6
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR7() uint64 {
+	if m != nil {
+		return m.R7
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR8() uint64 {
+	if m != nil {
+		return m.R8
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR9() uint64 {
+	if m != nil {
+		return m.R9
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR10() uint64 {
+	if m != nil {
+		return m.R10
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR11() uint64 {
+	if m != nil {
+		return m.R11
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR12() uint64 {
+	if m != nil {
+		return m.R12
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR13() uint64 {
+	if m != nil {
+		return m.R13
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR14() uint64 {
+	if m != nil {
+		return m.R14
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR15() uint64 {
+	if m != nil {
+		return m.R15
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR16() uint64 {
+	if m != nil {
+		return m.R16
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR17() uint64 {
+	if m != nil {
+		return m.R17
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR18() uint64 {
+	if m != nil {
+		return m.R18
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR19() uint64 {
+	if m != nil {
+		return m.R19
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR20() uint64 {
+	if m != nil {
+		return m.R20
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR21() uint64 {
+	if m != nil {
+		return m.R21
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR22() uint64 {
+	if m != nil {
+		return m.R22
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR23() uint64 {
+	if m != nil {
+		return m.R23
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR24() uint64 {
+	if m != nil {
+		return m.R24
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR25() uint64 {
+	if m != nil {
+		return m.R25
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR26() uint64 {
+	if m != nil {
+		return m.R26
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR27() uint64 {
+	if m != nil {
+		return m.R27
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR28() uint64 {
+	if m != nil {
+		return m.R28
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR29() uint64 {
+	if m != nil {
+		return m.R29
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetR30() uint64 {
+	if m != nil {
+		return m.R30
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetSp() uint64 {
+	if m != nil {
+		return m.Sp
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetPc() uint64 {
+	if m != nil {
+		return m.Pc
+	}
+	return 0
+}
+
+func (m *ARM64Registers) GetPstate() uint64 {
+	if m != nil {
+		return m.Pstate
+	}
+	return 0
+}
+
+type Registers struct {
+	// Types that are valid to be assigned to Arch:
+	//	*Registers_Amd64
+	//	*Registers_Arm64
+	Arch                 isRegisters_Arch `protobuf_oneof:"arch"`
+	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
+	XXX_unrecognized     []byte           `json:"-"`
+	XXX_sizecache        int32            `json:"-"`
+}
+
+func (m *Registers) Reset()         { *m = Registers{} }
+func (m *Registers) String() string { return proto.CompactTextString(m) }
+func (*Registers) ProtoMessage()    {}
+func (*Registers) Descriptor() ([]byte, []int) {
+	return fileDescriptor_082b7510610e0457, []int{2}
+}
+
+func (m *Registers) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Registers.Unmarshal(m, b)
+}
+func (m *Registers) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Registers.Marshal(b, m, deterministic)
+}
+func (m *Registers) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Registers.Merge(m, src)
+}
+func (m *Registers) XXX_Size() int {
+	return xxx_messageInfo_Registers.Size(m)
+}
+func (m *Registers) XXX_DiscardUnknown() {
+	xxx_messageInfo_Registers.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Registers proto.InternalMessageInfo
+
+type isRegisters_Arch interface {
+	isRegisters_Arch()
+}
+
+type Registers_Amd64 struct {
+	Amd64 *AMD64Registers `protobuf:"bytes,1,opt,name=amd64,proto3,oneof"`
+}
+
+type Registers_Arm64 struct {
+	Arm64 *ARM64Registers `protobuf:"bytes,2,opt,name=arm64,proto3,oneof"`
+}
+
+func (*Registers_Amd64) isRegisters_Arch() {}
+
+func (*Registers_Arm64) isRegisters_Arch() {}
+
+func (m *Registers) GetArch() isRegisters_Arch {
+	if m != nil {
+		return m.Arch
+	}
+	return nil
+}
+
+func (m *Registers) GetAmd64() *AMD64Registers {
+	if x, ok := m.GetArch().(*Registers_Amd64); ok {
+		return x.Amd64
+	}
+	return nil
+}
+
+func (m *Registers) GetArm64() *ARM64Registers {
+	if x, ok := m.GetArch().(*Registers_Arm64); ok {
+		return x.Arm64
+	}
+	return nil
+}
+
+// XXX_OneofWrappers is for the internal use of the proto package.
+func (*Registers) XXX_OneofWrappers() []interface{} {
+	return []interface{}{
+		(*Registers_Amd64)(nil),
+		(*Registers_Arm64)(nil),
+	}
+}
+
+func init() {
+	proto.RegisterType((*AMD64Registers)(nil), "gvisor.AMD64Registers")
+	proto.RegisterType((*ARM64Registers)(nil), "gvisor.ARM64Registers")
+	proto.RegisterType((*Registers)(nil), "gvisor.Registers")
+}
+
+func init() { proto.RegisterFile("pkg/sentry/arch/registers.proto", fileDescriptor_082b7510610e0457) }
+
+var fileDescriptor_082b7510610e0457 = []byte{
+	// 544 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x94, 0x4b, 0x72, 0xd3, 0x40,
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+	0xe3, 0x9d, 0x6f, 0x9b, 0x5b, 0xfa, 0x95, 0xcf, 0x79, 0x65, 0x40, 0xbc, 0x2a, 0x3b, 0xfa, 0x80,
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+	0x5c, 0x33, 0x6f, 0x11, 0xce, 0x85, 0xb7, 0xcc, 0x0d, 0x02, 0x08, 0x37, 0xcc, 0x88, 0x70, 0x21,
+	0x8c, 0x18, 0x9d, 0xdb, 0xc1, 0x16, 0x6f, 0xd7, 0x25, 0xd6, 0xf0, 0x4a, 0xf6, 0xb4, 0xc5, 0xeb,
+	0x12, 0x6b, 0x5a, 0x68, 0x74, 0xe1, 0xb5, 0x2c, 0x34, 0xbc, 0x30, 0xfe, 0x4d, 0x53, 0xb0, 0xba,
+	0xb9, 0x3f, 0x05, 0xf4, 0x97, 0x63, 0x1d, 0x02, 0xe3, 0x63, 0xe6, 0x44, 0x47, 0xc0, 0xf8, 0x84,
+	0x39, 0xd5, 0x01, 0x30, 0x3e, 0x65, 0xce, 0x34, 0x7e, 0xe3, 0x33, 0xe6, 0x5c, 0xc3, 0x37, 0x3e,
+	0x67, 0x9e, 0x69, 0xf4, 0xc6, 0xcf, 0x98, 0x0b, 0x0d, 0xde, 0xf8, 0x82, 0x79, 0xae, 0xb1, 0x1b,
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+	0x61, 0x57, 0xd1, 0x89, 0x70, 0xb8, 0x2f, 0xf7, 0x35, 0x8c, 0x65, 0xc8, 0x84, 0xc6, 0x68, 0x4f,
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+	0x8f, 0x26, 0x0f, 0xef, 0xa2, 0xcf, 0x8f, 0x56, 0xd2, 0xc6, 0xfd, 0xfe, 0xae, 0xc8, 0x79, 0x02,
+	0xef, 0xf7, 0x3f, 0x98, 0x5a, 0xee, 0xa7, 0xb6, 0xeb, 0xbe, 0xed, 0xd1, 0xbd, 0xb7, 0xee, 0xf3,
+	0x75, 0x97, 0xfd, 0x09, 0x00, 0x00, 0xff, 0xff, 0x79, 0x30, 0x5f, 0x13, 0x11, 0x05, 0x00, 0x00,
+}
diff --git a/pkg/sentry/arch/signal.go b/pkg/sentry/arch/signal.go
index 8b03d0187..8b03d0187 100644..100755
--- a/pkg/sentry/arch/signal.go
+++ b/pkg/sentry/arch/signal.go
diff --git a/pkg/sentry/arch/signal_arm64.go b/pkg/sentry/arch/signal_arm64.go
index 0c1db4b13..0c1db4b13 100644..100755
--- a/pkg/sentry/arch/signal_arm64.go
+++ b/pkg/sentry/arch/signal_arm64.go
diff --git a/pkg/sentry/arch/syscalls_arm64.go b/pkg/sentry/arch/syscalls_arm64.go
index 00d5ef461..00d5ef461 100644..100755
--- a/pkg/sentry/arch/syscalls_arm64.go
+++ b/pkg/sentry/arch/syscalls_arm64.go