stateify: convert all packages to use explicit mode.

PiperOrigin-RevId: 207007153
Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9

pkg/abi/BUILD

@@ -1,24 +1,13 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "abi_state",
-    srcs = [
-        "abi.go",
-    ],
-    out = "abi_state.go",
-    package = "abi",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "abi",
     srcs = [
         "abi.go",
-        "abi_state.go",
         "flag.go",
     ],
     importpath = "gvisor.googlesource.com/gvisor/pkg/abi",
     visibility = ["//:sandbox"],
-    deps = ["//pkg/state"],
 )

pkg/abi/linux/BUILD

@@ -4,19 +4,7 @@
 
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "linux_state",
-    srcs = [
-        "binder.go",
-        "bpf.go",
-        "time.go",
-        "tty.go",
-    ],
-    out = "linux_state.go",
-    package = "linux",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "linux",
@@ -41,7 +29,6 @@ go_library(
         "ipc.go",
         "limits.go",
         "linux.go",
-        "linux_state.go",
         "mm.go",
         "netdevice.go",
         "netlink.go",
@@ -67,6 +54,5 @@ go_library(
         "//pkg/abi",
         "//pkg/binary",
         "//pkg/bits",
-        "//pkg/state",
     ],
 )

pkg/abi/linux/bpf.go

@@ -15,6 +15,8 @@
 package linux
 
 // BPFInstruction is a raw BPF virtual machine instruction.
+//
+// +stateify savable
 type BPFInstruction struct {
 	// OpCode is the operation to execute.
 	OpCode uint16

pkg/abi/linux/tty.go

@@ -38,6 +38,8 @@ type Termios struct {
 
 // KernelTermios is struct ktermios/struct termios2, defined in
 // uapi/asm-generic/termbits.h.
+//
+// +stateify savable
 type KernelTermios struct {
 	InputFlags        uint32
 	OutputFlags       uint32

pkg/bpf/BUILD

@@ -1,21 +1,11 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify", "go_test")
-
-go_stateify(
-    name = "bpf_state",
-    srcs = [
-        "interpreter.go",
-    ],
-    out = "bpf_state.go",
-    package = "bpf",
-)
+load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
 go_library(
     name = "bpf",
     srcs = [
         "bpf.go",
-        "bpf_state.go",
         "decoder.go",
         "input_bytes.go",
         "interpreter.go",
@@ -23,10 +13,7 @@ go_library(
     ],
     importpath = "gvisor.googlesource.com/gvisor/pkg/bpf",
     visibility = ["//visibility:public"],
-    deps = [
-        "//pkg/abi/linux",
-        "//pkg/state",
-    ],
+    deps = ["//pkg/abi/linux"],
 )
 
 go_test(

pkg/bpf/interpreter.go

@@ -88,6 +88,8 @@ func (e Error) Error() string {
 }
 
 // Program is a BPF program that has been validated for consistency.
+//
+// +stateify savable
 type Program struct {
 	instructions []linux.BPFInstruction
 }

pkg/cpuid/BUILD

@@ -1,27 +1,16 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify", "go_test")
-
-go_stateify(
-    name = "cpuid_state",
-    srcs = ["cpuid.go"],
-    out = "cpuid_state.go",
-    package = "cpuid",
-)
+load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
 go_library(
     name = "cpuid",
     srcs = [
         "cpu_amd64.s",
         "cpuid.go",
-        "cpuid_state.go",
     ],
     importpath = "gvisor.googlesource.com/gvisor/pkg/cpuid",
     visibility = ["//:sandbox"],
-    deps = [
-        "//pkg/log",
-        "//pkg/state",
-    ],
+    deps = ["//pkg/log"],
 )
 
 go_test(

pkg/cpuid/cpuid.go

@@ -409,6 +409,8 @@ func (f Feature) flagString(cpuinfoOnly bool) string {
 }
 
 // FeatureSet is a set of Features for a cpu.
+//
+// +stateify savable
 type FeatureSet struct {
 	// Set is the set of features that are enabled in this FeatureSet.
 	Set map[Feature]bool

pkg/ilist/BUILD

@@ -1,28 +1,15 @@
 package(licenses = ["notice"])  # Apache 2.0
 
 load("//tools/go_generics:defs.bzl", "go_template", "go_template_instance")
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify", "go_test")
-
-go_stateify(
-    name = "list_state",
-    srcs = [
-        "interface_list.go",
-    ],
-    out = "interface_list_state.go",
-    package = "ilist",
-)
+load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
 go_library(
     name = "ilist",
     srcs = [
         "interface_list.go",
-        "interface_list_state.go",
     ],
     importpath = "gvisor.googlesource.com/gvisor/pkg/ilist",
     visibility = ["//visibility:public"],
-    deps = [
-        "//pkg/state",
-    ],
 )
 
 go_template_instance(

pkg/ilist/list.go

@@ -36,6 +36,8 @@ type Linker interface {
 //      for e := l.Front(); e != nil; e = e.Next() {
 // 		// do something with e.
 //      }
+//
+// +stateify savable
 type List struct {
 	head Linker
 	tail Linker
@@ -155,6 +157,8 @@ func (l *List) Remove(e Linker) {
 // Entry is a default implementation of Linker. Users can add anonymous fields
 // of this type to their structs to make them automatically implement the
 // methods needed by List.
+//
+// +stateify savable
 type Entry struct {
 	next Linker
 	prev Linker

pkg/segment/range.go

@@ -18,6 +18,8 @@ package segment
 type T uint64
 
 // A Range represents a contiguous range of T.
+//
+// +stateify savable
 type Range struct {
 	// Start is the inclusive start of the range.
 	Start T

pkg/segment/set.go

@@ -88,6 +88,8 @@ const (
 // A Set is a mapping of segments with non-overlapping Range keys. The zero
 // value for a Set is an empty set. Set values are not safely movable nor
 // copyable. Set is thread-compatible.
+//
+// +stateify savable
 type Set struct {
 	root node `state:".(*SegmentDataSlices)"`
 }
@@ -596,6 +598,7 @@ func (s *Set) ApplyContiguous(r Range, fn func(seg Iterator)) GapIterator {
 	}
 }
 
+// +stateify savable
 type node struct {
 	// An internal binary tree node looks like:
 	//
@@ -1317,6 +1320,8 @@ func (n *node) writeDebugString(buf *bytes.Buffer, prefix string) {
 // SegmentDataSlices represents segments from a set as slices of start, end, and
 // values. SegmentDataSlices is primarily used as an intermediate representation
 // for save/restore and the layout here is optimized for that.
+//
+// +stateify savable
 type SegmentDataSlices struct {
 	Start  []Key
 	End    []Key

pkg/sentry/arch/BUILD

@@ -1,21 +1,7 @@
 package(licenses = ["notice"])  # Apache 2.0
 
 load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "arch_state",
-    srcs = [
-        "arch.go",
-        "arch_amd64.go",
-        "arch_state_x86.go",
-        "arch_x86.go",
-        "auxv.go",
-        "signal_amd64.go",
-    ],
-    out = "arch_state.go",
-    package = "arch",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "arch",
@@ -24,7 +10,6 @@ go_library(
         "arch.go",
         "arch_amd64.go",
         "arch_amd64.s",
-        "arch_state.go",
         "arch_state_x86.go",
         "arch_x86.go",
         "auxv.go",
@@ -46,7 +31,6 @@ go_library(
         "//pkg/sentry/context",
         "//pkg/sentry/limits",
         "//pkg/sentry/usermem",
-        "//pkg/state",
         "//pkg/syserror",
     ],
 )

pkg/sentry/arch/arch.go

@@ -254,6 +254,8 @@ const (
 // MemoryManager.
 //
 // Note that "highest address" below is always exclusive.
+//
+// +stateify savable
 type MmapLayout struct {
 	// MinAddr is the lowest mappable address.
 	MinAddr usermem.Addr

pkg/sentry/arch/arch_amd64.go

@@ -95,6 +95,8 @@ const (
 )
 
 // context64 represents an AMD64 context.
+//
+// +stateify savable
 type context64 struct {
 	State
 	sigFPState []x86FPState // fpstate to be restored on sigreturn.

pkg/sentry/arch/arch_state_x86.go

@@ -56,6 +56,7 @@ func (s *State) afterLoad() {
 	copy(s.x86FPState, old)
 }
 
+// +stateify savable
 type syscallPtraceRegs struct {
 	R15      uint64
 	R14      uint64

pkg/sentry/arch/arch_x86.go

@@ -153,6 +153,8 @@ func NewFloatingPointData() *FloatingPointData {
 
 // State contains the common architecture bits for X86 (the build tag of this
 // file ensures it's only built on x86).
+//
+// +stateify savable
 type State struct {
 	// The system registers.
 	Regs syscall.PtraceRegs `state:".(syscallPtraceRegs)"`

pkg/sentry/arch/auxv.go

@@ -19,6 +19,8 @@ import (
 )
 
 // An AuxEntry represents an entry in an ELF auxiliary vector.
+//
+// +stateify savable
 type AuxEntry struct {
 	Key   uint64
 	Value usermem.Addr

pkg/sentry/arch/signal_amd64.go

@@ -28,6 +28,8 @@ import (
 
 // SignalAct represents the action that should be taken when a signal is
 // delivered, and is equivalent to struct sigaction on 64-bit x86.
+//
+// +stateify savable
 type SignalAct struct {
 	Handler  uint64
 	Flags    uint64
@@ -47,6 +49,8 @@ func (s *SignalAct) DeserializeTo(other *SignalAct) {
 
 // SignalStack represents information about a user stack, and is equivalent to
 // stack_t on 64-bit x86.
+//
+// +stateify savable
 type SignalStack struct {
 	Addr  uint64
 	Flags uint32
@@ -66,6 +70,8 @@ func (s *SignalStack) DeserializeTo(other *SignalStack) {
 
 // SignalInfo represents information about a signal being delivered, and is
 // equivalent to struct siginfo on 64-bit x86.
+//
+// +stateify savable
 type SignalInfo struct {
 	Signo int32 // Signal number
 	Errno int32 // Errno value

pkg/sentry/context/contexttest/BUILD

@@ -1,23 +1,11 @@
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_stateify")
-
-go_stateify(
-    name = "contexttest_state",
-    srcs = [
-        "contexttest.go",
-    ],
-    out = "contexttest_state.go",
-    package = "contexttest",
-)
+load("//tools/go_stateify:defs.bzl", "go_library")
 
 go_library(
     name = "contexttest",
     testonly = 1,
-    srcs = [
-        "contexttest.go",
-        "contexttest_state.go",
-    ],
+    srcs = ["contexttest.go"],
     importpath = "gvisor.googlesource.com/gvisor/pkg/sentry/context/contexttest",
     visibility = ["//pkg/sentry:internal"],
     deps = [
@@ -28,6 +16,5 @@ go_library(
         "//pkg/sentry/platform",
         "//pkg/sentry/platform/ptrace",
         "//pkg/sentry/uniqueid",
-        "//pkg/state",
     ],
 )