params: v1.8.3 stable

core/vm: Fixed typos

.github/CODEOWNERS

@@ -9,3 +9,4 @@ les/               @zsfelfoldi
 light/             @zsfelfoldi
 mobile/            @karalabe
 p2p/               @fjl @zsfelfoldi
+whisper/           @gballet @gluk256

.github/no-response.yml

@@ -0,0 +1,11 @@
+# Number of days of inactivity before an Issue is closed for lack of response
+daysUntilClose: 30
+# Label requiring a response
+responseRequiredLabel: more-information-needed
+# Comment to post when closing an Issue for lack of response. Set to `false` to disable
+closeComment: >
+  This issue has been automatically closed because there has been no response
+  to our request for more information from the original author. With only the
+  information that is currently in the issue, we don't have enough information
+  to take action. Please reach out if you have or find the answers we need so
+  that we can investigate further.

.gitignore

@@ -42,3 +42,6 @@ profile.cov
 /dashboard/assets/node_modules
 /dashboard/assets/stats.json
 /dashboard/assets/bundle.js
+/dashboard/assets/package-lock.json
+
+**/yarn-error.log

.travis.yml

@@ -6,7 +6,7 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
-      go: 1.8.x
+      go: 1.9.x
       script:
         - sudo modprobe fuse
         - sudo chmod 666 /dev/fuse
@@ -18,7 +18,7 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
-      go: 1.9.x
+      go: "1.10"
       script:
         - sudo modprobe fuse
         - sudo chmod 666 /dev/fuse
@@ -27,7 +27,7 @@ matrix:
         - go run build/ci.go test -coverage
 
     - os: osx
-      go: 1.9.x
+      go: "1.10"
       script:
         - unset -f cd # workaround for https://github.com/travis-ci/travis-ci/issues/8703
         - brew update
@@ -39,7 +39,7 @@ matrix:
     # This builder only tests code linters on latest version of Go
     - os: linux
       dist: trusty
-      go: 1.9.x
+      go: "1.10"
       env:
         - lint
       git:
@@ -51,7 +51,7 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
-      go: 1.9.x
+      go: "1.10"
       env:
         - ubuntu-ppa
         - azure-linux
@@ -91,7 +91,7 @@ matrix:
       dist: trusty
       services:
         - docker
-      go: 1.9.x
+      go: "1.10"
       env:
         - azure-linux-mips
       git:
@@ -135,7 +135,7 @@ matrix:
       git:
         submodules: false # avoid cloning ethereum/tests
       before_install:
-        - curl https://storage.googleapis.com/golang/go1.9.2.linux-amd64.tar.gz | tar -xz
+        - curl https://storage.googleapis.com/golang/go1.10.linux-amd64.tar.gz | tar -xz
         - export PATH=`pwd`/go/bin:$PATH
         - export GOROOT=`pwd`/go
         - export GOPATH=$HOME/go
@@ -152,7 +152,7 @@ matrix:
 
     # This builder does the OSX Azure, iOS CocoaPods and iOS Azure uploads
     - os: osx
-      go: 1.9.x
+      go: "1.10"
       env:
         - azure-osx
         - azure-ios
@@ -182,7 +182,7 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
-      go: 1.9.x
+      go: "1.10"
       env:
         - azure-purge
       git:

Dockerfile

@@ -1,5 +1,5 @@
 # Build Geth in a stock Go builder container
-FROM golang:1.9-alpine as builder
+FROM golang:1.10-alpine as builder
 
 RUN apk add --no-cache make gcc musl-dev linux-headers
 

Dockerfile.alltools

@@ -1,5 +1,5 @@
 # Build Geth in a stock Go builder container
-FROM golang:1.9-alpine as builder
+FROM golang:1.10-alpine as builder
 
 RUN apk add --no-cache make gcc musl-dev linux-headers
 

VERSION

@@ -1 +1 @@
-1.8.2
+1.8.3

accounts/abi/abi_test.go

@@ -621,14 +621,16 @@ func TestBareEvents(t *testing.T) {
 // TestUnpackEvent is based on this contract:
 //    contract T {
 //      event received(address sender, uint amount, bytes memo);
+//      event receivedAddr(address sender);
 //      function receive(bytes memo) external payable {
 //        received(msg.sender, msg.value, memo);
+//        receivedAddr(msg.sender);
 //      }
 //    }
 // When receive("X") is called with sender 0x00... and value 1, it produces this tx receipt:
 //   receipt{status=1 cgas=23949 bloom=00000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000040200000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 logs=[log: b6818c8064f645cd82d99b59a1a267d6d61117ef [75fd880d39c1daf53b6547ab6cb59451fc6452d27caa90e5b6649dd8293b9eed] 000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158 9ae378b6d4409eada347a5dc0c180f186cb62dc68fcc0f043425eb917335aa28 0 95d429d309bb9d753954195fe2d69bd140b4ae731b9b5b605c34323de162cf00 0]}
 func TestUnpackEvent(t *testing.T) {
-	const abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"receive","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
+	const abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"receive","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"}],"name":"receivedAddr","type":"event"}]`
 	abi, err := JSON(strings.NewReader(abiJSON))
 	if err != nil {
 		t.Fatal(err)
@@ -656,6 +658,17 @@ func TestUnpackEvent(t *testing.T) {
 	} else {
 		t.Logf("len(data): %d; received event: %+v", len(data), ev)
 	}
+
+	type ReceivedAddrEvent struct {
+		Address common.Address
+	}
+	var receivedAddrEv ReceivedAddrEvent
+	err = abi.Unpack(&receivedAddrEv, "receivedAddr", data)
+	if err != nil {
+		t.Error(err)
+	} else {
+		t.Logf("len(data): %d; received event: %+v", len(data), receivedAddrEv)
+	}
 }
 
 func TestABI_MethodById(t *testing.T) {

accounts/abi/argument.go

@@ -113,16 +113,8 @@ func (arguments Arguments) unpackTuple(v interface{}, marshalledValues []interfa
 	}
 	// If the output interface is a struct, make sure names don't collide
 	if kind == reflect.Struct {
-		exists := make(map[string]bool)
-		for _, arg := range arguments {
-			field := capitalise(arg.Name)
-			if field == "" {
-				return fmt.Errorf("abi: purely underscored output cannot unpack to struct")
-			}
-			if exists[field] {
-				return fmt.Errorf("abi: multiple outputs mapping to the same struct field '%s'", field)
-			}
-			exists[field] = true
+		if err := requireUniqueStructFieldNames(arguments); err != nil {
+			return err
 		}
 	}
 	for i, arg := range arguments.NonIndexed() {
@@ -131,14 +123,9 @@ func (arguments Arguments) unpackTuple(v interface{}, marshalledValues []interfa
 
 		switch kind {
 		case reflect.Struct:
-			name := capitalise(arg.Name)
-			for j := 0; j < typ.NumField(); j++ {
-				// TODO read tags: `abi:"fieldName"`
-				if typ.Field(j).Name == name {
-					if err := set(value.Field(j), reflectValue, arg); err != nil {
-						return err
-					}
-				}
+			err := unpackStruct(value, reflectValue, arg)
+			if err != nil {
+				return err
 			}
 		case reflect.Slice, reflect.Array:
 			if value.Len() < i {
@@ -165,8 +152,20 @@ func (arguments Arguments) unpackAtomic(v interface{}, marshalledValues []interf
 		return fmt.Errorf("abi: wrong length, expected single value, got %d", len(marshalledValues))
 	}
 	elem := reflect.ValueOf(v).Elem()
+	kind := elem.Kind()
 	reflectValue := reflect.ValueOf(marshalledValues[0])
+
+	if kind == reflect.Struct {
+		//make sure names don't collide
+		if err := requireUniqueStructFieldNames(arguments); err != nil {
+			return err
+		}
+
+		return unpackStruct(elem, reflectValue, arguments[0])
+	}
+
 	return set(elem, reflectValue, arguments.NonIndexed()[0])
+
 }
 
 // Computes the full size of an array;
@@ -278,3 +277,18 @@ func capitalise(input string) string {
 	}
 	return strings.ToUpper(input[:1]) + input[1:]
 }
+
+//unpackStruct extracts each argument into its corresponding struct field
+func unpackStruct(value, reflectValue reflect.Value, arg Argument) error {
+	name := capitalise(arg.Name)
+	typ := value.Type()
+	for j := 0; j < typ.NumField(); j++ {
+		// TODO read tags: `abi:"fieldName"`
+		if typ.Field(j).Name == name {
+			if err := set(value.Field(j), reflectValue, arg); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}

accounts/abi/bind/backends/simulated.go

@@ -307,9 +307,9 @@ func (b *SimulatedBackend) SendTransaction(ctx context.Context, tx *types.Transa
 
 	blocks, _ := core.GenerateChain(b.config, b.blockchain.CurrentBlock(), ethash.NewFaker(), b.database, 1, func(number int, block *core.BlockGen) {
 		for _, tx := range b.pendingBlock.Transactions() {
-			block.AddTx(tx)
+			block.AddTxWithChain(b.blockchain, tx)
 		}
-		block.AddTx(tx)
+		block.AddTxWithChain(b.blockchain, tx)
 	})
 	statedb, _ := b.blockchain.State()
 

accounts/abi/bind/bind.go

@@ -385,8 +385,7 @@ var methodNormalizer = map[Lang]func(string) string{
 	LangJava: decapitalise,
 }
 
-// capitalise makes the first character of a string upper case, also removing any
-// prefixing underscores from the variable names.
+// capitalise makes a camel-case string which starts with an upper case character.
 func capitalise(input string) string {
 	for len(input) > 0 && input[0] == '_' {
 		input = input[1:]
@@ -394,12 +393,42 @@ func capitalise(input string) string {
 	if len(input) == 0 {
 		return ""
 	}
-	return strings.ToUpper(input[:1]) + input[1:]
+	return toCamelCase(strings.ToUpper(input[:1]) + input[1:])
 }
 
-// decapitalise makes the first character of a string lower case.
+// decapitalise makes a camel-case string which starts with a lower case character.
 func decapitalise(input string) string {
-	return strings.ToLower(input[:1]) + input[1:]
+	for len(input) > 0 && input[0] == '_' {
+		input = input[1:]
+	}
+	if len(input) == 0 {
+		return ""
+	}
+	return toCamelCase(strings.ToLower(input[:1]) + input[1:])
+}
+
+// toCamelCase converts an under-score string to a camel-case string
+func toCamelCase(input string) string {
+	toupper := false
+
+	result := ""
+	for k, v := range input {
+		switch {
+		case k == 0:
+			result = strings.ToUpper(string(input[0]))
+
+		case toupper:
+			result += strings.ToUpper(string(v))
+			toupper = false
+
+		case v == '_':
+			toupper = true
+
+		default:
+			result += string(v)
+		}
+	}
+	return result
 }
 
 // structured checks whether a list of ABI data types has enough information to

accounts/abi/bind/bind_test.go

@@ -425,7 +425,7 @@ var bindTests = []struct {
 			}
 		`,
 	},
-	// Tests that gas estimation works for contracts with	weird gas mechanics too.
+	// Tests that gas estimation works for contracts with weird gas mechanics too.
 	{
 		`FunkyGasPattern`,
 		`
@@ -506,6 +506,7 @@ var bindTests = []struct {
 			}
 		`,
 	},
+	// Tests that methods and returns with underscores inside work correctly.
 	{
 		`Underscorer`,
 		`
@@ -518,7 +519,7 @@ var bindTests = []struct {
 			}
 			function LowerUpperCollision() constant returns (int _res, int Res) {
 				return (1, 2);
-		  }
+			}
 			function UpperLowerCollision() constant returns (int _Res, int res) {
 				return (1, 2);
 			}
@@ -531,9 +532,12 @@ var bindTests = []struct {
 			function AllPurelyUnderscoredOutput() constant returns (int _, int __) {
 				return (1, 2);
 			}
+			function _under_scored_func() constant returns (int _int) {
+				return 0;
+			}
 		}
-		`, `6060604052341561000f57600080fd5b6103498061001e6000396000f300606060405260043610610083576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806303a592131461008857806367e6633d146100b85780639df484851461014d578063af7486ab1461017d578063b564b34d146101ad578063e02ab24d146101dd578063e409ca451461020d575b600080fd5b341561009357600080fd5b61009b61023d565b604051808381526020018281526020019250505060405180910390f35b34156100c357600080fd5b6100cb610252565b6040518083815260200180602001828103825283818151815260200191508051906020019080838360005b838110156101115780820151818401526020810190506100f6565b50505050905090810190601f16801561013e5780820380516001836020036101000a031916815260200191505b50935050505060405180910390f35b341561015857600080fd5b6101606102a0565b604051808381526020018281526020019250505060405180910390f35b341561018857600080fd5b6101906102b5565b604051808381526020018281526020019250505060405180910390f35b34156101b857600080fd5b6101c06102ca565b604051808381526020018281526020019250505060405180910390f35b34156101e857600080fd5b6101f06102df565b604051808381526020018281526020019250505060405180910390f35b341561021857600080fd5b6102206102f4565b604051808381526020018281526020019250505060405180910390f35b60008060016002819150809050915091509091565b600061025c610309565b61013a8090506040805190810160405280600281526020017f7069000000000000000000000000000000000000000000000000000000000000815250915091509091565b60008060016002819150809050915091509091565b60008060016002819150809050915091509091565b60008060016002819150809050915091509091565b60008060016002819150809050915091509091565b60008060016002819150809050915091509091565b6020604051908101604052806000815250905600a165627a7a72305820c11dcfa136fc7d182ee4d34f0b12d988496228f7e2d02d2b5376d996ca1743d00029`,
-		`[{"constant":true,"inputs":[],"name":"LowerUpperCollision","outputs":[{"name":"_res","type":"int256"},{"name":"Res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UnderscoredOutput","outputs":[{"name":"_int","type":"int256"},{"name":"_string","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PurelyUnderscoredOutput","outputs":[{"name":"_","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UpperLowerCollision","outputs":[{"name":"_Res","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"AllPurelyUnderscoredOutput","outputs":[{"name":"_","type":"int256"},{"name":"__","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UpperUpperCollision","outputs":[{"name":"_Res","type":"int256"},{"name":"Res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"LowerLowerCollision","outputs":[{"name":"_res","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"}]`,
+		`, `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`,
+		`[{"constant":true,"inputs":[],"name":"LowerUpperCollision","outputs":[{"name":"_res","type":"int256"},{"name":"Res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"_under_scored_func","outputs":[{"name":"_int","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UnderscoredOutput","outputs":[{"name":"_int","type":"int256"},{"name":"_string","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PurelyUnderscoredOutput","outputs":[{"name":"_","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UpperLowerCollision","outputs":[{"name":"_Res","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"AllPurelyUnderscoredOutput","outputs":[{"name":"_","type":"int256"},{"name":"__","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"UpperUpperCollision","outputs":[{"name":"_Res","type":"int256"},{"name":"Res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"LowerLowerCollision","outputs":[{"name":"_res","type":"int256"},{"name":"res","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"}]`,
 		`
 			// Generate a new random account and a funded simulator
 			key, _ := crypto.GenerateKey()
@@ -562,6 +566,7 @@ var bindTests = []struct {
 			a, b, _ = underscorer.UpperUpperCollision(nil)
 			a, b, _ = underscorer.PurelyUnderscoredOutput(nil)
 			a, b, _ = underscorer.AllPurelyUnderscoredOutput(nil)
+			a, _ = underscorer.UnderScoredFunc(nil)
 
 			fmt.Println(a, b, err)
 		`,
@@ -801,7 +806,8 @@ var bindTests = []struct {
 			// (See accounts/abi/unpack_test.go for more extensive testing)
 			if retrievedArr[4][3][2] != testArr[4][3][2] {
 				t.Fatalf("Retrieved value does not match expected value! got: %d, expected: %d. %v", retrievedArr[4][3][2], testArr[4][3][2], err)
-			}`,
+			}
+		`,
 	},
 }
 

accounts/abi/reflect.go

@@ -110,3 +110,19 @@ func requireUnpackKind(v reflect.Value, t reflect.Type, k reflect.Kind,
 	}
 	return nil
 }
+
+// requireUniqueStructFieldNames makes sure field names don't collide
+func requireUniqueStructFieldNames(args Arguments) error {
+	exists := make(map[string]bool)
+	for _, arg := range args {
+		field := capitalise(arg.Name)
+		if field == "" {
+			return fmt.Errorf("abi: purely underscored output cannot unpack to struct")
+		}
+		if exists[field] {
+			return fmt.Errorf("abi: multiple outputs mapping to the same struct field '%s'", field)
+		}
+		exists[field] = true
+	}
+	return nil
+}

appveyor.yml

@@ -23,8 +23,8 @@ environment:
 install:
   - git submodule update --init
   - rmdir C:\go /s /q
-  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.9.2.windows-%GETH_ARCH%.zip
-  - 7z x go1.9.2.windows-%GETH_ARCH%.zip -y -oC:\ > NUL
+  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.10.windows-%GETH_ARCH%.zip
+  - 7z x go1.10.windows-%GETH_ARCH%.zip -y -oC:\ > NUL
   - go version
   - gcc --version
 

build/ci-notes.md

@@ -2,12 +2,7 @@
 
 Tagged releases and develop branch commits are available as installable Debian packages
 for Ubuntu. Packages are built for the all Ubuntu versions which are supported by
-Canonical:
-
-- Trusty Tahr (14.04 LTS)
-- Xenial Xerus (16.04 LTS)
-- Yakkety Yak (16.10)
-- Zesty Zapus (17.04)
+Canonical.
 
 Packages of develop branch commits have suffix -unstable and cannot be installed alongside
 the stable version. Switching between release streams requires user intervention.
@@ -21,18 +16,18 @@ variable which Travis CI makes available to certain builds.
 We want to build go-ethereum with the most recent version of Go, irrespective of the Go
 version that is available in the main Ubuntu repository. In order to make this possible,
 our PPA depends on the ~gophers/ubuntu/archive PPA. Our source package build-depends on
-golang-1.9, which is co-installable alongside the regular golang package. PPA dependencies
+golang-1.10, which is co-installable alongside the regular golang package. PPA dependencies
 can be edited at https://launchpad.net/%7Eethereum/+archive/ubuntu/ethereum/+edit-dependencies
 
 ## Building Packages Locally (for testing)
 
 You need to run Ubuntu to do test packaging.
 
-Add the gophers PPA and install Go 1.9 and Debian packaging tools:
+Add the gophers PPA and install Go 1.10 and Debian packaging tools:
 
     $ sudo apt-add-repository ppa:gophers/ubuntu/archive
     $ sudo apt-get update
-    $ sudo apt-get install build-essential golang-1.9 devscripts debhelper
+    $ sudo apt-get install build-essential golang-1.10 devscripts debhelper
 
 Create the source packages:
 

build/ci.go

@@ -182,13 +182,13 @@ func doInstall(cmdline []string) {
 	// Check Go version. People regularly open issues about compilation
 	// failure with outdated Go. This should save them the trouble.
 	if !strings.Contains(runtime.Version(), "devel") {
-		// Figure out the minor version number since we can't textually compare (1.10 < 1.8)
+		// Figure out the minor version number since we can't textually compare (1.10 < 1.9)
 		var minor int
 		fmt.Sscanf(strings.TrimPrefix(runtime.Version(), "go1."), "%d", &minor)
 
-		if minor < 8 {
+		if minor < 9 {
 			log.Println("You have Go version", runtime.Version())
-			log.Println("go-ethereum requires at least Go version 1.8 and cannot")
+			log.Println("go-ethereum requires at least Go version 1.9 and cannot")
 			log.Println("be compiled with an earlier version. Please upgrade your Go installation.")
 			os.Exit(1)
 		}
@@ -262,16 +262,6 @@ func goTool(subcmd string, args ...string) *exec.Cmd {
 
 func goToolArch(arch string, cc string, subcmd string, args ...string) *exec.Cmd {
 	cmd := build.GoTool(subcmd, args...)
-	if subcmd == "build" || subcmd == "install" || subcmd == "test" {
-		// Go CGO has a Windows linker error prior to 1.8 (https://github.com/golang/go/issues/8756).
-		// Work around issue by allowing multiple definitions for <1.8 builds.
-		var minor int
-		fmt.Sscanf(strings.TrimPrefix(runtime.Version(), "go1."), "%d", &minor)
-
-		if runtime.GOOS == "windows" && minor < 8 {
-			cmd.Args = append(cmd.Args, []string{"-ldflags", "-extldflags -Wl,--allow-multiple-definition"}...)
-		}
-	}
 	cmd.Env = []string{"GOPATH=" + build.GOPATH()}
 	if arch == "" || arch == runtime.GOARCH {
 		cmd.Env = append(cmd.Env, "GOBIN="+GOBIN)
@@ -736,7 +726,7 @@ func doAndroidArchive(cmdline []string) {
 		log.Fatal("Please ensure ANDROID_NDK points to your Android NDK")
 	}
 	// Build the Android archive and Maven resources
-	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile"))
+	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile", "golang.org/x/mobile/cmd/gobind"))
 	build.MustRun(gomobileTool("init", "--ndk", os.Getenv("ANDROID_NDK")))
 	build.MustRun(gomobileTool("bind", "--target", "android", "--javapkg", "org.ethereum", "-v", "github.com/ethereum/go-ethereum/mobile"))
 
@@ -787,9 +777,10 @@ func gomobileTool(subcmd string, args ...string) *exec.Cmd {
 	cmd.Args = append(cmd.Args, args...)
 	cmd.Env = []string{
 		"GOPATH=" + build.GOPATH(),
+		"PATH=" + GOBIN + string(os.PathListSeparator) + os.Getenv("PATH"),
 	}
 	for _, e := range os.Environ() {
-		if strings.HasPrefix(e, "GOPATH=") {
+		if strings.HasPrefix(e, "GOPATH=") || strings.HasPrefix(e, "PATH=") {
 			continue
 		}
 		cmd.Env = append(cmd.Env, e)
@@ -856,7 +847,7 @@ func doXCodeFramework(cmdline []string) {
 	env := build.Env()
 
 	// Build the iOS XCode framework
-	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile"))
+	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile", "golang.org/x/mobile/cmd/gobind"))
 	build.MustRun(gomobileTool("init"))
 	bind := gomobileTool("bind", "--target", "ios", "--tags", "ios", "-v", "github.com/ethereum/go-ethereum/mobile")
 

build/deb.control

@@ -2,7 +2,7 @@ Source: {{.Name}}
 Section: science
 Priority: extra
 Maintainer: {{.Author}}
-Build-Depends: debhelper (>= 8.0.0), golang-1.9
+Build-Depends: debhelper (>= 8.0.0), golang-1.10
 Standards-Version: 3.9.5
 Homepage: https://ethereum.org
 Vcs-Git: git://github.com/ethereum/go-ethereum.git

build/deb.rules

@@ -5,7 +5,7 @@
 #export DH_VERBOSE=1
 
 override_dh_auto_build:
-	build/env.sh /usr/lib/go-1.9/bin/go run build/ci.go install -git-commit={{.Env.Commit}} -git-branch={{.Env.Branch}} -git-tag={{.Env.Tag}} -buildnum={{.Env.Buildnum}} -pull-request={{.Env.IsPullRequest}}
+	build/env.sh /usr/lib/go-1.10/bin/go run build/ci.go install -git-commit={{.Env.Commit}} -git-branch={{.Env.Branch}} -git-tag={{.Env.Tag}} -buildnum={{.Env.Buildnum}} -pull-request={{.Env.IsPullRequest}}
 
 override_dh_auto_test:
 

cmd/geth/chaincmd.go

@@ -95,6 +95,34 @@ Requires a first argument of the file to write to.
 Optional second and third arguments control the first and
 last block to write. In this mode, the file will be appended
 if already existing.`,
+	}
+	importPreimagesCommand = cli.Command{
+		Action:    utils.MigrateFlags(importPreimages),
+		Name:      "import-preimages",
+		Usage:     "Import the preimage database from an RLP stream",
+		ArgsUsage: "<datafile>",
+		Flags: []cli.Flag{
+			utils.DataDirFlag,
+			utils.CacheFlag,
+			utils.LightModeFlag,
+		},
+		Category: "BLOCKCHAIN COMMANDS",
+		Description: `
+	The import-preimages command imports hash preimages from an RLP encoded stream.`,
+	}
+	exportPreimagesCommand = cli.Command{
+		Action:    utils.MigrateFlags(exportPreimages),
+		Name:      "export-preimages",
+		Usage:     "Export the preimage database into an RLP stream",
+		ArgsUsage: "<dumpfile>",
+		Flags: []cli.Flag{
+			utils.DataDirFlag,
+			utils.CacheFlag,
+			utils.LightModeFlag,
+		},
+		Category: "BLOCKCHAIN COMMANDS",
+		Description: `
+The export-preimages command export hash preimages to an RLP encoded stream`,
 	}
 	copydbCommand = cli.Command{
 		Action:    utils.MigrateFlags(copyDb),
@@ -225,6 +253,13 @@ func importChain(ctx *cli.Context) error {
 		utils.Fatalf("Failed to read database stats: %v", err)
 	}
 	fmt.Println(stats)
+
+	ioStats, err := db.LDB().GetProperty("leveldb.iostats")
+	if err != nil {
+		utils.Fatalf("Failed to read database iostats: %v", err)
+	}
+	fmt.Println(ioStats)
+
 	fmt.Printf("Trie cache misses:  %d\n", trie.CacheMisses())
 	fmt.Printf("Trie cache unloads: %d\n\n", trie.CacheUnloads())
 
@@ -255,6 +290,12 @@ func importChain(ctx *cli.Context) error {
 	}
 	fmt.Println(stats)
 
+	ioStats, err = db.LDB().GetProperty("leveldb.iostats")
+	if err != nil {
+		utils.Fatalf("Failed to read database iostats: %v", err)
+	}
+	fmt.Println(ioStats)
+
 	return nil
 }
 
@@ -286,7 +327,39 @@ func exportChain(ctx *cli.Context) error {
 	if err != nil {
 		utils.Fatalf("Export error: %v\n", err)
 	}
-	fmt.Printf("Export done in %v", time.Since(start))
+	fmt.Printf("Export done in %v\n", time.Since(start))
+	return nil
+}
+
+// importPreimages imports preimage data from the specified file.
+func importPreimages(ctx *cli.Context) error {
+	if len(ctx.Args()) < 1 {
+		utils.Fatalf("This command requires an argument.")
+	}
+	stack := makeFullNode(ctx)
+	diskdb := utils.MakeChainDatabase(ctx, stack).(*ethdb.LDBDatabase)
+
+	start := time.Now()
+	if err := utils.ImportPreimages(diskdb, ctx.Args().First()); err != nil {
+		utils.Fatalf("Export error: %v\n", err)
+	}
+	fmt.Printf("Export done in %v\n", time.Since(start))
+	return nil
+}
+
+// exportPreimages dumps the preimage data to specified json file in streaming way.
+func exportPreimages(ctx *cli.Context) error {
+	if len(ctx.Args()) < 1 {
+		utils.Fatalf("This command requires an argument.")
+	}
+	stack := makeFullNode(ctx)
+	diskdb := utils.MakeChainDatabase(ctx, stack).(*ethdb.LDBDatabase)
+
+	start := time.Now()
+	if err := utils.ExportPreimages(diskdb, ctx.Args().First()); err != nil {
+		utils.Fatalf("Export error: %v\n", err)
+	}
+	fmt.Printf("Export done in %v\n", time.Since(start))
 	return nil
 }
 

cmd/geth/config.go

@@ -32,7 +32,7 @@ import (
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/params"
-	whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
+	whisper "github.com/ethereum/go-ethereum/whisper/whisperv6"
 	"github.com/naoina/toml"
 )
 

cmd/geth/main.go

@@ -65,7 +65,6 @@ var (
 		utils.DashboardAddrFlag,
 		utils.DashboardPortFlag,
 		utils.DashboardRefreshFlag,
-		utils.DashboardAssetsFlag,
 		utils.EthashCacheDirFlag,
 		utils.EthashCachesInMemoryFlag,
 		utils.EthashCachesOnDiskFlag,
@@ -156,6 +155,8 @@ func init() {
 		initCommand,
 		importCommand,
 		exportCommand,
+		importPreimagesCommand,
+		exportPreimagesCommand,
 		copydbCommand,
 		removedbCommand,
 		dumpCommand,

cmd/puppeth/module_wallet.go

@@ -37,7 +37,7 @@ ADD genesis.json /genesis.json
 RUN \
   echo 'node server.js &'                     > wallet.sh && \
 	echo 'geth --cache 512 init /genesis.json' >> wallet.sh && \
-	echo $'geth --networkid {{.NetworkID}} --port {{.NodePort}} --bootnodes {{.Bootnodes}} --ethstats \'{{.Ethstats}}\' --cache=512 --rpc --rpcaddr=0.0.0.0 --rpccorsdomain "*"' >> wallet.sh
+	echo $'geth --networkid {{.NetworkID}} --port {{.NodePort}} --bootnodes {{.Bootnodes}} --ethstats \'{{.Ethstats}}\' --cache=512 --rpc --rpcaddr=0.0.0.0 --rpccorsdomain "*" --rpcvhosts "*"' >> wallet.sh
 
 RUN \
 	sed -i 's/PuppethNetworkID/{{.NetworkID}}/g' dist/js/etherwallet-master.js && \

cmd/puppeth/puppeth.go

@@ -20,6 +20,7 @@ package main
 import (
 	"math/rand"
 	"os"
+	"strings"
 	"time"
 
 	"github.com/ethereum/go-ethereum/log"
@@ -34,7 +35,7 @@ func main() {
 	app.Flags = []cli.Flag{
 		cli.StringFlag{
 			Name:  "network",
-			Usage: "name of the network to administer",
+			Usage: "name of the network to administer (no spaces or hyphens, please)",
 		},
 		cli.IntFlag{
 			Name:  "loglevel",
@@ -47,6 +48,10 @@ func main() {
 		log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(c.Int("loglevel")), log.StreamHandler(os.Stdout, log.TerminalFormat(true))))
 		rand.Seed(time.Now().UnixNano())
 
+		network := c.String("network")
+		if strings.Contains(network, " ") || strings.Contains(network, "-") {
+			log.Crit("No spaces or hyphens allowed in network name")
+		}
 		// Start the wizard and relinquish control
 		makeWizard(c.String("network")).run()
 		return nil

cmd/utils/cmd.go

@@ -27,8 +27,11 @@ import (
 	"strings"
 	"syscall"
 
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/internal/debug"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/node"
@@ -105,6 +108,8 @@ func ImportChain(chain *core.BlockChain, fn string) error {
 	}
 
 	log.Info("Importing blockchain", "file", fn)
+
+	// Open the file handle and potentially unwrap the gzip stream
 	fh, err := os.Open(fn)
 	if err != nil {
 		return err
@@ -180,8 +185,12 @@ func missingBlocks(chain *core.BlockChain, blocks []*types.Block) []*types.Block
 	return nil
 }
 
+// ExportChain exports a blockchain into the specified file, truncating any data
+// already present in the file.
 func ExportChain(blockchain *core.BlockChain, fn string) error {
 	log.Info("Exporting blockchain", "file", fn)
+
+	// Open the file handle and potentially wrap with a gzip stream
 	fh, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
 	if err != nil {
 		return err
@@ -193,7 +202,7 @@ func ExportChain(blockchain *core.BlockChain, fn string) error {
 		writer = gzip.NewWriter(writer)
 		defer writer.(*gzip.Writer).Close()
 	}
-
+	// Iterate over the blocks and export them
 	if err := blockchain.Export(writer); err != nil {
 		return err
 	}
@@ -202,9 +211,12 @@ func ExportChain(blockchain *core.BlockChain, fn string) error {
 	return nil
 }
 
+// ExportAppendChain exports a blockchain into the specified file, appending to
+// the file if data already exists in it.
 func ExportAppendChain(blockchain *core.BlockChain, fn string, first uint64, last uint64) error {
 	log.Info("Exporting blockchain", "file", fn)
-	// TODO verify mode perms
+
+	// Open the file handle and potentially wrap with a gzip stream
 	fh, err := os.OpenFile(fn, os.O_CREATE|os.O_APPEND|os.O_WRONLY, os.ModePerm)
 	if err != nil {
 		return err
@@ -216,10 +228,86 @@ func ExportAppendChain(blockchain *core.BlockChain, fn string, first uint64, las
 		writer = gzip.NewWriter(writer)
 		defer writer.(*gzip.Writer).Close()
 	}
-
+	// Iterate over the blocks and export them
 	if err := blockchain.ExportN(writer, first, last); err != nil {
 		return err
 	}
 	log.Info("Exported blockchain to", "file", fn)
 	return nil
 }
+
+// ImportPreimages imports a batch of exported hash preimages into the database.
+func ImportPreimages(db *ethdb.LDBDatabase, fn string) error {
+	log.Info("Importing preimages", "file", fn)
+
+	// Open the file handle and potentially unwrap the gzip stream
+	fh, err := os.Open(fn)
+	if err != nil {
+		return err
+	}
+	defer fh.Close()
+
+	var reader io.Reader = fh
+	if strings.HasSuffix(fn, ".gz") {
+		if reader, err = gzip.NewReader(reader); err != nil {
+			return err
+		}
+	}
+	stream := rlp.NewStream(reader, 0)
+
+	// Import the preimages in batches to prevent disk trashing
+	preimages := make(map[common.Hash][]byte)
+
+	for {
+		// Read the next entry and ensure it's not junk
+		var blob []byte
+
+		if err := stream.Decode(&blob); err != nil {
+			if err == io.EOF {
+				break
+			}
+			return err
+		}
+		// Accumulate the preimages and flush when enough ws gathered
+		preimages[crypto.Keccak256Hash(blob)] = common.CopyBytes(blob)
+		if len(preimages) > 1024 {
+			if err := core.WritePreimages(db, 0, preimages); err != nil {
+				return err
+			}
+			preimages = make(map[common.Hash][]byte)
+		}
+	}
+	// Flush the last batch preimage data
+	if len(preimages) > 0 {
+		return core.WritePreimages(db, 0, preimages)
+	}
+	return nil
+}
+
+// ExportPreimages exports all known hash preimages into the specified file,
+// truncating any data already present in the file.
+func ExportPreimages(db *ethdb.LDBDatabase, fn string) error {
+	log.Info("Exporting preimages", "file", fn)
+
+	// Open the file handle and potentially wrap with a gzip stream
+	fh, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	defer fh.Close()
+
+	var writer io.Writer = fh
+	if strings.HasSuffix(fn, ".gz") {
+		writer = gzip.NewWriter(writer)
+		defer writer.(*gzip.Writer).Close()
+	}
+	// Iterate over the preimages and export them
+	it := db.NewIteratorWithPrefix([]byte("secure-key-"))
+	for it.Next() {
+		if err := rlp.Encode(writer, it.Value()); err != nil {
+			return err
+		}
+	}
+	log.Info("Exported preimages", "file", fn)
+	return nil
+}

cmd/utils/flags.go

@@ -55,7 +55,7 @@ import (
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 	"github.com/ethereum/go-ethereum/params"
-	whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
+	whisper "github.com/ethereum/go-ethereum/whisper/whisperv6"
 	"gopkg.in/urfave/cli.v1"
 )
 
@@ -209,11 +209,6 @@ var (
 		Usage: "Dashboard metrics collection refresh rate",
 		Value: dashboard.DefaultConfig.Refresh,
 	}
-	DashboardAssetsFlag = cli.StringFlag{
-		Name:  "dashboard.assets",
-		Usage: "Developer flag to serve the dashboard from the local file system",
-		Value: dashboard.DefaultConfig.Assets,
-	}
 	// Ethash settings
 	EthashCacheDirFlag = DirectoryFlag{
 		Name:  "ethash.cachedir",
@@ -819,6 +814,9 @@ func SetP2PConfig(ctx *cli.Context, cfg *p2p.Config) {
 
 	if ctx.GlobalIsSet(MaxPeersFlag.Name) {
 		cfg.MaxPeers = ctx.GlobalInt(MaxPeersFlag.Name)
+		if lightServer && !ctx.GlobalIsSet(LightPeersFlag.Name) {
+			cfg.MaxPeers += lightPeers
+		}
 	} else {
 		if lightServer {
 			cfg.MaxPeers += lightPeers
@@ -1120,7 +1118,6 @@ func SetDashboardConfig(ctx *cli.Context, cfg *dashboard.Config) {
 	cfg.Host = ctx.GlobalString(DashboardAddrFlag.Name)
 	cfg.Port = ctx.GlobalInt(DashboardPortFlag.Name)
 	cfg.Refresh = ctx.GlobalDuration(DashboardRefreshFlag.Name)
-	cfg.Assets = ctx.GlobalString(DashboardAssetsFlag.Name)
 }
 
 // RegisterEthService adds an Ethereum client to the stack.

cmd/wnode/main.go

@@ -197,6 +197,8 @@ func initialize() {
 		if len(*argIP) == 0 {
 			argIP = scanLineA("Please enter your IP and port (e.g. 127.0.0.1:30348): ")
 		}
+	} else if *fileReader {
+		*bootstrapMode = true
 	} else {
 		if len(*argEnode) == 0 {
 			argEnode = scanLineA("Please enter the peer's enode: ")
@@ -205,11 +207,22 @@ func initialize() {
 		peers = append(peers, peer)
 	}
 
+	if *mailServerMode {
+		if len(msPassword) == 0 {
+			msPassword, err = console.Stdin.PromptPassword("Please enter the Mail Server password: ")
+			if err != nil {
+				utils.Fatalf("Failed to read Mail Server password: %s", err)
+			}
+		}
+	}
+
 	cfg := &whisper.Config{
 		MaxMessageSize:     uint32(*argMaxSize),
 		MinimumAcceptedPOW: *argPoW,
 	}
 
+	shh = whisper.New(cfg)
+
 	if *argPoW != whisper.DefaultMinimumPoW {
 		err := shh.SetMinimumPoW(*argPoW)
 		if err != nil {
@@ -257,18 +270,8 @@ func initialize() {
 	}
 
 	if *mailServerMode {
-		if len(msPassword) == 0 {
-			msPassword, err = console.Stdin.PromptPassword("Please enter the Mail Server password: ")
-			if err != nil {
-				utils.Fatalf("Failed to read Mail Server password: %s", err)
-			}
-		}
-
-		shh = whisper.New(cfg)
 		shh.RegisterServer(&mailServer)
 		mailServer.Init(shh, *argDBPath, msPassword, *argServerPoW)
-	} else {
-		shh = whisper.New(cfg)
 	}
 
 	server = &p2p.Server{
@@ -306,7 +309,11 @@ func startServer() error {
 		configureNode()
 	}
 
-	if !*forwarderMode {
+	if *fileExMode {
+		fmt.Printf("Please type the file name to be send. To quit type: '%s'\n", quitCommand)
+	} else if *fileReader {
+		fmt.Printf("Please type the file name to be decrypted. To quit type: '%s'\n", quitCommand)
+	} else if !*forwarderMode {
 		fmt.Printf("Please type the message. To quit type: '%s'\n", quitCommand)
 	}
 	return nil
@@ -566,6 +573,7 @@ func sendMsg(payload []byte) common.Hash {
 	if err != nil {
 		utils.Fatalf("failed to create new message: %s", err)
 	}
+
 	envelope, err := msg.Wrap(&params)
 	if err != nil {
 		fmt.Printf("failed to seal message: %v \n", err)
@@ -601,15 +609,17 @@ func messageLoop() {
 			m2 := af.Retrieve()
 			messages := append(m1, m2...)
 			for _, msg := range messages {
+				reportedOnce := false
+				if !*fileExMode && len(msg.Payload) <= 2048 {
+					printMessageInfo(msg)
+					reportedOnce = true
+				}
+
 				// All messages are saved upon specifying argSaveDir.
 				// fileExMode only specifies how messages are displayed on the console after they are saved.
 				// if fileExMode == true, only the hashes are displayed, since messages might be too big.
 				if len(*argSaveDir) > 0 {
-					writeMessageToFile(*argSaveDir, msg)
-				}
-
-				if !*fileExMode && len(msg.Payload) <= 2048 {
-					printMessageInfo(msg)
+					writeMessageToFile(*argSaveDir, msg, !reportedOnce)
 				}
 			}
 		case <-done:
@@ -634,7 +644,11 @@ func printMessageInfo(msg *whisper.ReceivedMessage) {
 	}
 }
 
-func writeMessageToFile(dir string, msg *whisper.ReceivedMessage) {
+func writeMessageToFile(dir string, msg *whisper.ReceivedMessage, show bool) {
+	if len(dir) == 0 {
+		return
+	}
+
 	timestamp := fmt.Sprintf("%d", msg.Sent)
 	name := fmt.Sprintf("%x", msg.EnvelopeHash)
 
@@ -643,22 +657,24 @@ func writeMessageToFile(dir string, msg *whisper.ReceivedMessage) {
 		address = crypto.PubkeyToAddress(*msg.Src)
 	}
 
+	env := shh.GetEnvelope(msg.EnvelopeHash)
+	if env == nil {
+		fmt.Printf("\nUnexpected error: envelope not found: %x\n", msg.EnvelopeHash)
+		return
+	}
+
 	// this is a sample code; uncomment if you don't want to save your own messages.
 	//if whisper.IsPubKeyEqual(msg.Src, &asymKey.PublicKey) {
 	//	fmt.Printf("\n%s <%x>: message from myself received, not saved: '%s'\n", timestamp, address, name)
 	//	return
 	//}
 
-	if len(dir) > 0 {
-		fullpath := filepath.Join(dir, name)
-		err := ioutil.WriteFile(fullpath, msg.Raw, 0644)
-		if err != nil {
-			fmt.Printf("\n%s {%x}: message received but not saved: %s\n", timestamp, address, err)
-		} else {
-			fmt.Printf("\n%s {%x}: message received and saved as '%s' (%d bytes)\n", timestamp, address, name, len(msg.Raw))
-		}
-	} else {
-		fmt.Printf("\n%s {%x}: message received (%d bytes), but not saved: %s\n", timestamp, address, len(msg.Raw), name)
+	fullpath := filepath.Join(dir, name)
+	err := ioutil.WriteFile(fullpath, env.Data, 0644)
+	if err != nil {
+		fmt.Printf("\n%s {%x}: message received but not saved: %s\n", timestamp, address, err)
+	} else if show {
+		fmt.Printf("\n%s {%x}: message received and saved as '%s' (%d bytes)\n", timestamp, address, name, len(env.Data))
 	}
 }
 
@@ -682,18 +698,23 @@ func requestExpiredMessagesLoop() {
 	for {
 		timeLow = scanUint("Please enter the lower limit of the time range (unix timestamp): ")
 		timeUpp = scanUint("Please enter the upper limit of the time range (unix timestamp): ")
-		t = scanLine("Please enter the topic (hexadecimal): ")
-		if len(t) >= whisper.TopicLength*2 {
+		t = scanLine("Enter the topic (hex). Press enter to request all messages, regardless of the topic: ")
+		if len(t) == whisper.TopicLength*2 {
 			x, err := hex.DecodeString(t)
 			if err != nil {
-				utils.Fatalf("Failed to parse the topic: %s", err)
+				fmt.Printf("Failed to parse the topic: %s \n", err)
+				continue
 			}
 			xt = whisper.BytesToTopic(x)
 			bloom = whisper.TopicToBloom(xt)
 			obfuscateBloom(bloom)
-		} else {
+		} else if len(t) == 0 {
 			bloom = whisper.MakeFullNodeBloom()
+		} else {
+			fmt.Println("Error: topic is invalid, request aborted")
+			continue
 		}
+
 		if timeUpp == 0 {
 			timeUpp = 0xFFFFFFFF
 		}

common/compiler/solidity.go

@@ -65,7 +65,6 @@ type solcOutput struct {
 func (s *Solidity) makeArgs() []string {
 	p := []string{
 		"--combined-json", "bin,abi,userdoc,devdoc",
-		"--add-std",  // include standard lib contracts
 		"--optimize", // code optimizer switched on
 	}
 	if s.Major > 0 || s.Minor > 4 || s.Patch > 6 {

containers/vagrant/.gitignore

@@ -1 +0,0 @@
-.vagrant

containers/vagrant/Vagrantfile

@@ -1,38 +0,0 @@
-# -*- mode: ruby -*-
-# vi: set ft=ruby :
-
-require 'yaml'
-
-VAGRANTFILE_API_VERSION = 2
-VM_RAM = 2048
-
-Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
-
-  config.vm.define "ubuntu", :primary => true do |ubuntu| 
-    ubuntu.vm.box = "ubuntu/trusty64"
-    ubuntu.vm.provision "shell", :path => "provisioners/shell/ubuntu.sh"
-  end
-
-  config.vm.define "debian", :primary => true do |debian|
-    debian.vm.box = "debian/jessie64"
-    debian.vm.provision "shell", :path => "provisioners/shell/debian.sh"
-  end
-  
-  config.vm.define "centos", :autostart => false do |centos| 
-    centos.vm.box = "centos/7"
-    centos.vm.provision "shell", :path => "provisioners/shell/centos.sh"
-  end
-  
-  config.vm.provider "virtualbox" do |vb|
-    vb.memory = VM_RAM
-  end
-
-  config.vm.provider "libvirt" do |lv|
-    lv.memory = VM_RAM
-
-    config.vm.synced_folder ".", "/home/vagrant/sync", :disabled => true
-  end
-  
-  config.vm.synced_folder ".", "/vagrant", :disabled => true
-  config.vm.synced_folder "../../", "/home/vagrant/go/src/github.com/ethereum/go-ethereum"
-end

containers/vagrant/provisioners/shell/centos.sh

@@ -1,11 +0,0 @@
-#!/bin/bash
-
-sudo yum install -y git wget
-sudo yum update -y
-
-wget --continue https://storage.googleapis.com/golang/go1.8.1.linux-amd64.tar.gz
-sudo tar -C /usr/local -xzf go1.8.1.linux-amd64.tar.gz
-
-GETH_PATH="~vagrant/go/src/github.com/ethereum/go-ethereum/build/bin/"
-
-echo "export PATH=$PATH:/usr/local/go/bin:$GETH_PATH" >> ~vagrant/.bashrc 

containers/vagrant/provisioners/shell/debian.sh

@@ -1,11 +0,0 @@
-#!/bin/bash
-
-sudo apt-get install -y build-essential git-all wget
-sudo apt-get update
-
-wget --continue https://storage.googleapis.com/golang/go1.8.1.linux-amd64.tar.gz
-sudo tar -C /usr/local -xzf go1.8.1.linux-amd64.tar.gz
-
-GETH_PATH="~vagrant/go/src/github.com/ethereum/go-ethereum/build/bin/"
-
-echo "export PATH=$PATH:/usr/local/go/bin:$GETH_PATH" >> ~vagrant/.bashrc 

containers/vagrant/provisioners/shell/ubuntu.sh

@@ -1,11 +0,0 @@
-#!/bin/bash
-
-sudo apt-get install -y build-essential git-all wget
-sudo apt-get update
-
-wget --continue https://storage.googleapis.com/golang/go1.8.1.linux-amd64.tar.gz
-sudo tar -C /usr/local -xzf go1.8.1.linux-amd64.tar.gz
-
-GETH_PATH="~vagrant/go/src/github.com/ethereum/go-ethereum/build/bin/"
-
-echo "export PATH=$PATH:/usr/local/go/bin:$GETH_PATH" >> ~vagrant/.bashrc 

core/asm/compiler.go

@@ -114,7 +114,7 @@ func (c *Compiler) Compile() (string, []error) {
 }
 
 // next returns the next token and increments the
-// posititon.
+// position.
 func (c *Compiler) next() token {
 	token := c.tokens[c.pos]
 	c.pos++
@@ -122,7 +122,7 @@ func (c *Compiler) next() token {
 }
 
 // compile line compiles a single line instruction e.g.
-// "push 1", "jump @labal".
+// "push 1", "jump @label".
 func (c *Compiler) compileLine() error {
 	n := c.next()
 	if n.typ != lineStart {

core/asm/lexer.go

@@ -48,7 +48,7 @@ const (
 	lineEnd                           // emitted when a line ends
 	invalidStatement                  // any invalid statement
 	element                           // any element during element parsing
-	label                             // label is emitted when a labal is found
+	label                             // label is emitted when a label is found
 	labelDef                          // label definition is emitted when a new label is found
 	number                            // number is emitted when a number is found
 	stringValue                       // stringValue is emitted when a string has been found

core/blockchain.go

@@ -723,10 +723,13 @@ func (bc *BlockChain) Rollback(chain []common.Hash) {
 }
 
 // SetReceiptsData computes all the non-consensus fields of the receipts
-func SetReceiptsData(config *params.ChainConfig, block *types.Block, receipts types.Receipts) {
+func SetReceiptsData(config *params.ChainConfig, block *types.Block, receipts types.Receipts) error {
 	signer := types.MakeSigner(config, block.Number())
 
 	transactions, logIndex := block.Transactions(), uint(0)
+	if len(transactions) != len(receipts) {
+		return errors.New("transaction and receipt count mismatch")
+	}
 
 	for j := 0; j < len(receipts); j++ {
 		// The transaction hash can be retrieved from the transaction itself
@@ -754,6 +757,7 @@ func SetReceiptsData(config *params.ChainConfig, block *types.Block, receipts ty
 			logIndex++
 		}
 	}
+	return nil
 }
 
 // InsertReceiptChain attempts to complete an already existing header chain with
@@ -794,7 +798,9 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
 			continue
 		}
 		// Compute all the non-consensus fields of the receipts
-		SetReceiptsData(bc.chainConfig, block, receipts)
+		if err := SetReceiptsData(bc.chainConfig, block, receipts); err != nil {
+			return i, fmt.Errorf("failed to set receipts data: %v", err)
+		}
 		// Write all the data out into the database
 		if err := WriteBody(batch, block.Hash(), block.NumberU64(), block.Body()); err != nil {
 			return i, fmt.Errorf("failed to write block body: %v", err)

core/chain_makers.go

@@ -82,11 +82,23 @@ func (b *BlockGen) SetExtra(data []byte) {
 // added. Notably, contract code relying on the BLOCKHASH instruction
 // will panic during execution.
 func (b *BlockGen) AddTx(tx *types.Transaction) {
+	b.AddTxWithChain(nil, tx)
+}
+
+// AddTxWithChain adds a transaction to the generated block. If no coinbase has
+// been set, the block's coinbase is set to the zero address.
+//
+// AddTxWithChain panics if the transaction cannot be executed. In addition to
+// the protocol-imposed limitations (gas limit, etc.), there are some
+// further limitations on the content of transactions that can be
+// added. If contract code relies on the BLOCKHASH instruction,
+// the block in chain will be returned.
+func (b *BlockGen) AddTxWithChain(bc *BlockChain, tx *types.Transaction) {
 	if b.gasPool == nil {
 		b.SetCoinbase(common.Address{})
 	}
 	b.statedb.Prepare(tx.Hash(), common.Hash{}, len(b.txs))
-	receipt, _, err := ApplyTransaction(b.config, nil, &b.header.Coinbase, b.gasPool, b.statedb, b.header, tx, &b.header.GasUsed, vm.Config{})
+	receipt, _, err := ApplyTransaction(b.config, bc, &b.header.Coinbase, b.gasPool, b.statedb, b.header, tx, &b.header.GasUsed, vm.Config{})
 	if err != nil {
 		panic(err)
 	}

core/evm.go

@@ -60,13 +60,26 @@ func NewEVMContext(msg Message, header *types.Header, chain ChainContext, author
 
 // GetHashFn returns a GetHashFunc which retrieves header hashes by number
 func GetHashFn(ref *types.Header, chain ChainContext) func(n uint64) common.Hash {
+	var cache map[uint64]common.Hash
+
 	return func(n uint64) common.Hash {
-		for header := chain.GetHeader(ref.ParentHash, ref.Number.Uint64()-1); header != nil; header = chain.GetHeader(header.ParentHash, header.Number.Uint64()-1) {
-			if header.Number.Uint64() == n {
-				return header.Hash()
+		// If there's no hash cache yet, make one
+		if cache == nil {
+			cache = map[uint64]common.Hash{
+				ref.Number.Uint64() - 1: ref.ParentHash,
+			}
+		}
+		// Try to fulfill the request from the cache
+		if hash, ok := cache[n]; ok {
+			return hash
+		}
+		// Not cached, iterate the blocks and cache the hashes
+		for header := chain.GetHeader(ref.ParentHash, ref.Number.Uint64()-1); header != nil; header = chain.GetHeader(header.ParentHash, header.Number.Uint64()-1) {
+			cache[header.Number.Uint64()-1] = header.ParentHash
+			if n == header.Number.Uint64()-1 {
+				return header.ParentHash
 			}
 		}
-
 		return common.Hash{}
 	}
 }

core/headerchain.go

@@ -23,6 +23,7 @@ import (
 	"math"
 	"math/big"
 	mrand "math/rand"
+	"sync/atomic"
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -32,7 +33,6 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/hashicorp/golang-lru"
-	"sync/atomic"
 )
 
 const (

core/state/statedb.go

@@ -83,7 +83,7 @@ type StateDB struct {
 	lock sync.Mutex
 }
 
-// Create a new state from a given trie
+// Create a new state from a given trie.
 func New(root common.Hash, db Database) (*StateDB, error) {
 	tr, err := db.OpenTrie(root)
 	if err != nil {
@@ -110,7 +110,7 @@ func (self *StateDB) Error() error {
 	return self.dbErr
 }
 
-// Reset clears out all emphemeral state objects from the state db, but keeps
+// Reset clears out all ephemeral state objects from the state db, but keeps
 // the underlying state trie to avoid reloading data for the next operations.
 func (self *StateDB) Reset(root common.Hash) error {
 	tr, err := self.db.OpenTrie(root)

core/tx_pool.go

@@ -877,15 +877,14 @@ func (pool *TxPool) removeTx(hash common.Hash) {
 	// Remove the transaction from the pending lists and reset the account nonce
 	if pending := pool.pending[addr]; pending != nil {
 		if removed, invalids := pending.Remove(tx); removed {
-			// If no more transactions are left, remove the list
+			// If no more pending transactions are left, remove the list
 			if pending.Empty() {
 				delete(pool.pending, addr)
 				delete(pool.beats, addr)
-			} else {
-				// Otherwise postpone any invalidated transactions
-				for _, tx := range invalids {
-					pool.enqueueTx(tx.Hash(), tx)
-				}
+			}
+			// Postpone any invalidated transactions
+			for _, tx := range invalids {
+				pool.enqueueTx(tx.Hash(), tx)
 			}
 			// Update the account nonce if needed
 			if nonce := tx.Nonce(); pool.pendingState.GetNonce(addr) > nonce {

core/tx_pool_test.go

@@ -557,74 +557,112 @@ func TestTransactionDropping(t *testing.T) {
 func TestTransactionPostponing(t *testing.T) {
 	t.Parallel()
 
-	// Create a test account and fund it
-	pool, key := setupTxPool()
+	// Create the pool to test the postponing with
+	db, _ := ethdb.NewMemDatabase()
+	statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
+	blockchain := &testBlockChain{statedb, 1000000, new(event.Feed)}
+
+	pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, blockchain)
 	defer pool.Stop()
 
-	account, _ := deriveSender(transaction(0, 0, key))
-	pool.currentState.AddBalance(account, big.NewInt(1000))
+	// Create two test accounts to produce different gap profiles with
+	keys := make([]*ecdsa.PrivateKey, 2)
+	accs := make([]common.Address, len(keys))
 
+	for i := 0; i < len(keys); i++ {
+		keys[i], _ = crypto.GenerateKey()
+		accs[i] = crypto.PubkeyToAddress(keys[i].PublicKey)
+
+		pool.currentState.AddBalance(crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(50100))
+	}
 	// Add a batch consecutive pending transactions for validation
-	txns := []*types.Transaction{}
-	for i := 0; i < 100; i++ {
-		var tx *types.Transaction
-		if i%2 == 0 {
-			tx = transaction(uint64(i), 100, key)
-		} else {
-			tx = transaction(uint64(i), 500, key)
+	txs := []*types.Transaction{}
+	for i, key := range keys {
+
+		for j := 0; j < 100; j++ {
+			var tx *types.Transaction
+			if (i+j)%2 == 0 {
+				tx = transaction(uint64(j), 25000, key)
+			} else {
+				tx = transaction(uint64(j), 50000, key)
+			}
+			txs = append(txs, tx)
+		}
+	}
+	for i, err := range pool.AddRemotes(txs) {
+		if err != nil {
+			t.Fatalf("tx %d: failed to add transactions: %v", i, err)
 		}
-		pool.promoteTx(account, tx.Hash(), tx)
-		txns = append(txns, tx)
 	}
 	// Check that pre and post validations leave the pool as is
-	if pool.pending[account].Len() != len(txns) {
-		t.Errorf("pending transaction mismatch: have %d, want %d", pool.pending[account].Len(), len(txns))
+	if pending := pool.pending[accs[0]].Len() + pool.pending[accs[1]].Len(); pending != len(txs) {
+		t.Errorf("pending transaction mismatch: have %d, want %d", pending, len(txs))
 	}
 	if len(pool.queue) != 0 {
-		t.Errorf("queued transaction mismatch: have %d, want %d", pool.queue[account].Len(), 0)
+		t.Errorf("queued accounts mismatch: have %d, want %d", len(pool.queue), 0)
 	}
-	if len(pool.all) != len(txns) {
-		t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), len(txns))
+	if len(pool.all) != len(txs) {
+		t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), len(txs))
 	}
 	pool.lockedReset(nil, nil)
-	if pool.pending[account].Len() != len(txns) {
-		t.Errorf("pending transaction mismatch: have %d, want %d", pool.pending[account].Len(), len(txns))
+	if pending := pool.pending[accs[0]].Len() + pool.pending[accs[1]].Len(); pending != len(txs) {
+		t.Errorf("pending transaction mismatch: have %d, want %d", pending, len(txs))
 	}
 	if len(pool.queue) != 0 {
-		t.Errorf("queued transaction mismatch: have %d, want %d", pool.queue[account].Len(), 0)
+		t.Errorf("queued accounts mismatch: have %d, want %d", len(pool.queue), 0)
 	}
-	if len(pool.all) != len(txns) {
-		t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), len(txns))
+	if len(pool.all) != len(txs) {
+		t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), len(txs))
 	}
 	// Reduce the balance of the account, and check that transactions are reorganised
-	pool.currentState.AddBalance(account, big.NewInt(-750))
+	for _, addr := range accs {
+		pool.currentState.AddBalance(addr, big.NewInt(-1))
+	}
 	pool.lockedReset(nil, nil)
 
-	if _, ok := pool.pending[account].txs.items[txns[0].Nonce()]; !ok {
-		t.Errorf("tx %d: valid and funded transaction missing from pending pool: %v", 0, txns[0])
+	// The first account's first transaction remains valid, check that subsequent
+	// ones are either filtered out, or queued up for later.
+	if _, ok := pool.pending[accs[0]].txs.items[txs[0].Nonce()]; !ok {
+		t.Errorf("tx %d: valid and funded transaction missing from pending pool: %v", 0, txs[0])
 	}
-	if _, ok := pool.queue[account].txs.items[txns[0].Nonce()]; ok {
-		t.Errorf("tx %d: valid and funded transaction present in future queue: %v", 0, txns[0])
+	if _, ok := pool.queue[accs[0]].txs.items[txs[0].Nonce()]; ok {
+		t.Errorf("tx %d: valid and funded transaction present in future queue: %v", 0, txs[0])
 	}
-	for i, tx := range txns[1:] {
+	for i, tx := range txs[1:100] {
 		if i%2 == 1 {
-			if _, ok := pool.pending[account].txs.items[tx.Nonce()]; ok {
+			if _, ok := pool.pending[accs[0]].txs.items[tx.Nonce()]; ok {
 				t.Errorf("tx %d: valid but future transaction present in pending pool: %v", i+1, tx)
 			}
-			if _, ok := pool.queue[account].txs.items[tx.Nonce()]; !ok {
+			if _, ok := pool.queue[accs[0]].txs.items[tx.Nonce()]; !ok {
 				t.Errorf("tx %d: valid but future transaction missing from future queue: %v", i+1, tx)
 			}
 		} else {
-			if _, ok := pool.pending[account].txs.items[tx.Nonce()]; ok {
+			if _, ok := pool.pending[accs[0]].txs.items[tx.Nonce()]; ok {
 				t.Errorf("tx %d: out-of-fund transaction present in pending pool: %v", i+1, tx)
 			}
-			if _, ok := pool.queue[account].txs.items[tx.Nonce()]; ok {
+			if _, ok := pool.queue[accs[0]].txs.items[tx.Nonce()]; ok {
 				t.Errorf("tx %d: out-of-fund transaction present in future queue: %v", i+1, tx)
 			}
 		}
 	}
-	if len(pool.all) != len(txns)/2 {
-		t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), len(txns)/2)
+	// The second account's first transaction got invalid, check that all transactions
+	// are either filtered out, or queued up for later.
+	if pool.pending[accs[1]] != nil {
+		t.Errorf("invalidated account still has pending transactions")
+	}
+	for i, tx := range txs[100:] {
+		if i%2 == 1 {
+			if _, ok := pool.queue[accs[1]].txs.items[tx.Nonce()]; !ok {
+				t.Errorf("tx %d: valid but future transaction missing from future queue: %v", 100+i, tx)
+			}
+		} else {
+			if _, ok := pool.queue[accs[1]].txs.items[tx.Nonce()]; ok {
+				t.Errorf("tx %d: out-of-fund transaction present in future queue: %v", 100+i, tx)
+			}
+		}
+	}
+	if len(pool.all) != len(txs)/2 {
+		t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), len(txs)/2)
 	}
 }
 
@@ -949,11 +987,11 @@ func testTransactionLimitingEquivalency(t *testing.T, origin uint64) {
 	account2, _ := deriveSender(transaction(0, 0, key2))
 	pool2.currentState.AddBalance(account2, big.NewInt(1000000))
 
-	txns := []*types.Transaction{}
+	txs := []*types.Transaction{}
 	for i := uint64(0); i < testTxPoolConfig.AccountQueue+5; i++ {
-		txns = append(txns, transaction(origin+i, 100000, key2))
+		txs = append(txs, transaction(origin+i, 100000, key2))
 	}
-	pool2.AddRemotes(txns)
+	pool2.AddRemotes(txs)
 
 	// Ensure the batch optimization honors the same pool mechanics
 	if len(pool1.pending) != len(pool2.pending) {
@@ -1124,7 +1162,7 @@ func TestTransactionPoolRepricing(t *testing.T) {
 	defer sub.Unsubscribe()
 
 	// Create a number of test accounts and fund them
-	keys := make([]*ecdsa.PrivateKey, 3)
+	keys := make([]*ecdsa.PrivateKey, 4)
 	for i := 0; i < len(keys); i++ {
 		keys[i], _ = crypto.GenerateKey()
 		pool.currentState.AddBalance(crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
@@ -1136,24 +1174,28 @@ func TestTransactionPoolRepricing(t *testing.T) {
 	txs = append(txs, pricedTransaction(1, 100000, big.NewInt(1), keys[0]))
 	txs = append(txs, pricedTransaction(2, 100000, big.NewInt(2), keys[0]))
 
+	txs = append(txs, pricedTransaction(0, 100000, big.NewInt(1), keys[1]))
 	txs = append(txs, pricedTransaction(1, 100000, big.NewInt(2), keys[1]))
-	txs = append(txs, pricedTransaction(2, 100000, big.NewInt(1), keys[1]))
-	txs = append(txs, pricedTransaction(3, 100000, big.NewInt(2), keys[1]))
+	txs = append(txs, pricedTransaction(2, 100000, big.NewInt(2), keys[1]))
 
-	ltx := pricedTransaction(0, 100000, big.NewInt(1), keys[2])
+	txs = append(txs, pricedTransaction(1, 100000, big.NewInt(2), keys[2]))
+	txs = append(txs, pricedTransaction(2, 100000, big.NewInt(1), keys[2]))
+	txs = append(txs, pricedTransaction(3, 100000, big.NewInt(2), keys[2]))
+
+	ltx := pricedTransaction(0, 100000, big.NewInt(1), keys[3])
 
 	// Import the batch and that both pending and queued transactions match up
 	pool.AddRemotes(txs)
 	pool.AddLocal(ltx)
 
 	pending, queued := pool.Stats()
-	if pending != 4 {
-		t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 4)
+	if pending != 7 {
+		t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 7)
 	}
 	if queued != 3 {
 		t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 3)
 	}
-	if err := validateEvents(events, 4); err != nil {
+	if err := validateEvents(events, 7); err != nil {
 		t.Fatalf("original event firing failed: %v", err)
 	}
 	if err := validateTxPoolInternals(pool); err != nil {
@@ -1166,8 +1208,8 @@ func TestTransactionPoolRepricing(t *testing.T) {
 	if pending != 2 {
 		t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
 	}
-	if queued != 3 {
-		t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 3)
+	if queued != 5 {
+		t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 5)
 	}
 	if err := validateEvents(events, 0); err != nil {
 		t.Fatalf("reprice event firing failed: %v", err)
@@ -1179,7 +1221,10 @@ func TestTransactionPoolRepricing(t *testing.T) {
 	if err := pool.AddRemote(pricedTransaction(1, 100000, big.NewInt(1), keys[0])); err != ErrUnderpriced {
 		t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
 	}
-	if err := pool.AddRemote(pricedTransaction(2, 100000, big.NewInt(1), keys[1])); err != ErrUnderpriced {
+	if err := pool.AddRemote(pricedTransaction(0, 100000, big.NewInt(1), keys[1])); err != ErrUnderpriced {
+		t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
+	}
+	if err := pool.AddRemote(pricedTransaction(2, 100000, big.NewInt(1), keys[2])); err != ErrUnderpriced {
 		t.Fatalf("adding underpriced queued transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
 	}
 	if err := validateEvents(events, 0); err != nil {
@@ -1189,7 +1234,7 @@ func TestTransactionPoolRepricing(t *testing.T) {
 		t.Fatalf("pool internal state corrupted: %v", err)
 	}
 	// However we can add local underpriced transactions
-	tx := pricedTransaction(1, 100000, big.NewInt(1), keys[2])
+	tx := pricedTransaction(1, 100000, big.NewInt(1), keys[3])
 	if err := pool.AddLocal(tx); err != nil {
 		t.Fatalf("failed to add underpriced local transaction: %v", err)
 	}
@@ -1202,6 +1247,22 @@ func TestTransactionPoolRepricing(t *testing.T) {
 	if err := validateTxPoolInternals(pool); err != nil {
 		t.Fatalf("pool internal state corrupted: %v", err)
 	}
+	// And we can fill gaps with properly priced transactions
+	if err := pool.AddRemote(pricedTransaction(1, 100000, big.NewInt(2), keys[0])); err != nil {
+		t.Fatalf("failed to add pending transaction: %v", err)
+	}
+	if err := pool.AddRemote(pricedTransaction(0, 100000, big.NewInt(2), keys[1])); err != nil {
+		t.Fatalf("failed to add pending transaction: %v", err)
+	}
+	if err := pool.AddRemote(pricedTransaction(2, 100000, big.NewInt(2), keys[2])); err != nil {
+		t.Fatalf("failed to add queued transaction: %v", err)
+	}
+	if err := validateEvents(events, 5); err != nil {
+		t.Fatalf("post-reprice event firing failed: %v", err)
+	}
+	if err := validateTxPoolInternals(pool); err != nil {
+		t.Fatalf("pool internal state corrupted: %v", err)
+	}
 }
 
 // Tests that setting the transaction pool gas price to a higher value does not

core/vm/doc.go

@@ -17,19 +17,8 @@
 /*
 Package vm implements the Ethereum Virtual Machine.
 
-The vm package implements two EVMs, a byte code VM and a JIT VM. The BC
-(Byte Code) VM loops over a set of bytes and executes them according to the set
-of rules defined in the Ethereum yellow paper. When the BC VM is invoked it
-invokes the JIT VM in a separate goroutine and compiles the byte code in JIT
-instructions.
-
-The JIT VM, when invoked, loops around a set of pre-defined instructions until
-it either runs of gas, causes an internal error, returns or stops.
-
-The JIT optimiser attempts to pre-compile instructions in to chunks or segments
-such as multiple PUSH operations and static JUMPs. It does this by analysing the
-opcodes and attempts to match certain regions to known sets. Whenever the
-optimiser finds said segments it creates a new instruction and replaces the
-first occurrence in the sequence.
+The vm package implements one EVM, a byte code VM. The BC (Byte Code) VM loops
+over a set of bytes and executes them according to the set of rules defined
+in the Ethereum yellow paper.
 */
 package vm

core/vm/evm.go

@@ -111,7 +111,7 @@ type EVM struct {
 	callGasTemp uint64
 }
 
-// NewEVM retutrns a new EVM . The returned EVM is not thread safe and should
+// NewEVM returns a new EVM. The returned EVM is not thread safe and should
 // only ever be used *once*.
 func NewEVM(ctx Context, statedb StateDB, chainConfig *params.ChainConfig, vmConfig Config) *EVM {
 	evm := &EVM{
@@ -221,7 +221,7 @@ func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte,
 		to       = AccountRef(caller.Address())
 	)
 	// initialise a new contract and set the code that is to be used by the
-	// E The contract is a scoped evmironment for this execution context
+	// EVM. The contract is a scoped environment for this execution context
 	// only.
 	contract := NewContract(caller, to, value, gas)
 	contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))
@@ -341,7 +341,7 @@ func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.I
 	evm.Transfer(evm.StateDB, caller.Address(), contractAddr, value)
 
 	// initialise a new contract and set the code that is to be used by the
-	// E The contract is a scoped evmironment for this execution context
+	// EVM. The contract is a scoped environment for this execution context
 	// only.
 	contract := NewContract(caller, AccountRef(contractAddr), value, gas)
 	contract.SetCallCode(&contractAddr, crypto.Keccak256Hash(code), code)

core/vm/instructions.go

@@ -30,6 +30,8 @@ import (
 
 var (
 	bigZero                  = new(big.Int)
+	tt255                    = math.BigPow(2, 255)
+	tt256                    = math.BigPow(2, 256)
 	errWriteProtection       = errors.New("evm: write protection")
 	errReturnDataOutOfBounds = errors.New("evm: return data out of bounds")
 	errExecutionReverted     = errors.New("evm: execution reverted")
@@ -37,20 +39,18 @@ var (
 )
 
 func opAdd(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
-	stack.push(math.U256(x.Add(x, y)))
-
-	evm.interpreter.intPool.put(y)
+	x, y := stack.pop(), stack.peek()
+	math.U256(y.Add(x, y))
 
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opSub(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
-	stack.push(math.U256(x.Sub(x, y)))
-
-	evm.interpreter.intPool.put(y)
+	x, y := stack.pop(), stack.peek()
+	math.U256(y.Sub(x, y))
 
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
@@ -64,44 +64,39 @@ func opMul(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stac
 }
 
 func opDiv(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
+	x, y := stack.pop(), stack.peek()
 	if y.Sign() != 0 {
-		stack.push(math.U256(x.Div(x, y)))
+		math.U256(y.Div(x, y))
 	} else {
-		stack.push(new(big.Int))
+		y.SetUint64(0)
 	}
-
-	evm.interpreter.intPool.put(y)
-
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opSdiv(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := math.S256(stack.pop()), math.S256(stack.pop())
-	if y.Sign() == 0 {
-		stack.push(new(big.Int))
-		return nil, nil
+	res := evm.interpreter.intPool.getZero()
+
+	if y.Sign() == 0 || x.Sign() == 0 {
+		stack.push(res)
 	} else {
-		n := new(big.Int)
-		if evm.interpreter.intPool.get().Mul(x, y).Sign() < 0 {
-			n.SetInt64(-1)
+		if x.Sign() != y.Sign() {
+			res.Div(x.Abs(x), y.Abs(y))
+			res.Neg(res)
 		} else {
-			n.SetInt64(1)
+			res.Div(x.Abs(x), y.Abs(y))
 		}
-
-		res := x.Div(x.Abs(x), y.Abs(y))
-		res.Mul(res, n)
-
 		stack.push(math.U256(res))
 	}
-	evm.interpreter.intPool.put(y)
+	evm.interpreter.intPool.put(x, y)
 	return nil, nil
 }
 
 func opMod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := stack.pop(), stack.pop()
 	if y.Sign() == 0 {
-		stack.push(new(big.Int))
+		stack.push(x.SetUint64(0))
 	} else {
 		stack.push(math.U256(x.Mod(x, y)))
 	}
@@ -111,23 +106,20 @@ func opMod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stac
 
 func opSmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y := math.S256(stack.pop()), math.S256(stack.pop())
+	res := evm.interpreter.intPool.getZero()
 
 	if y.Sign() == 0 {
-		stack.push(new(big.Int))
+		stack.push(res)
 	} else {
-		n := new(big.Int)
 		if x.Sign() < 0 {
-			n.SetInt64(-1)
+			res.Mod(x.Abs(x), y.Abs(y))
+			res.Neg(res)
 		} else {
-			n.SetInt64(1)
+			res.Mod(x.Abs(x), y.Abs(y))
 		}
-
-		res := x.Mod(x.Abs(x), y.Abs(y))
-		res.Mul(res, n)
-
 		stack.push(math.U256(res))
 	}
-	evm.interpreter.intPool.put(y)
+	evm.interpreter.intPool.put(x, y)
 	return nil, nil
 }
 
@@ -161,80 +153,99 @@ func opSignExtend(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stac
 }
 
 func opNot(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x := stack.pop()
-	stack.push(math.U256(x.Not(x)))
+	x := stack.peek()
+	math.U256(x.Not(x))
 	return nil, nil
 }
 
 func opLt(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
+	x, y := stack.pop(), stack.peek()
 	if x.Cmp(y) < 0 {
-		stack.push(evm.interpreter.intPool.get().SetUint64(1))
+		y.SetUint64(1)
 	} else {
-		stack.push(new(big.Int))
+		y.SetUint64(0)
 	}
-
-	evm.interpreter.intPool.put(x, y)
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opGt(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
+	x, y := stack.pop(), stack.peek()
 	if x.Cmp(y) > 0 {
-		stack.push(evm.interpreter.intPool.get().SetUint64(1))
+		y.SetUint64(1)
 	} else {
-		stack.push(new(big.Int))
+		y.SetUint64(0)
 	}
-
-	evm.interpreter.intPool.put(x, y)
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opSlt(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := math.S256(stack.pop()), math.S256(stack.pop())
-	if x.Cmp(math.S256(y)) < 0 {
-		stack.push(evm.interpreter.intPool.get().SetUint64(1))
-	} else {
-		stack.push(new(big.Int))
-	}
+	x, y := stack.pop(), stack.peek()
 
-	evm.interpreter.intPool.put(x, y)
+	xSign := x.Cmp(tt255)
+	ySign := y.Cmp(tt255)
+
+	switch {
+	case xSign >= 0 && ySign < 0:
+		y.SetUint64(1)
+
+	case xSign < 0 && ySign >= 0:
+		y.SetUint64(0)
+
+	default:
+		if x.Cmp(y) < 0 {
+			y.SetUint64(1)
+		} else {
+			y.SetUint64(0)
+		}
+	}
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opSgt(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := math.S256(stack.pop()), math.S256(stack.pop())
-	if x.Cmp(y) > 0 {
-		stack.push(evm.interpreter.intPool.get().SetUint64(1))
-	} else {
-		stack.push(new(big.Int))
-	}
+	x, y := stack.pop(), stack.peek()
 
-	evm.interpreter.intPool.put(x, y)
+	xSign := x.Cmp(tt255)
+	ySign := y.Cmp(tt255)
+
+	switch {
+	case xSign >= 0 && ySign < 0:
+		y.SetUint64(0)
+
+	case xSign < 0 && ySign >= 0:
+		y.SetUint64(1)
+
+	default:
+		if x.Cmp(y) > 0 {
+			y.SetUint64(1)
+		} else {
+			y.SetUint64(0)
+		}
+	}
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opEq(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
+	x, y := stack.pop(), stack.peek()
 	if x.Cmp(y) == 0 {
-		stack.push(evm.interpreter.intPool.get().SetUint64(1))
+		y.SetUint64(1)
 	} else {
-		stack.push(new(big.Int))
+		y.SetUint64(0)
 	}
-
-	evm.interpreter.intPool.put(x, y)
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opIszero(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x := stack.pop()
+	x := stack.peek()
 	if x.Sign() > 0 {
-		stack.push(new(big.Int))
+		x.SetUint64(0)
 	} else {
-		stack.push(evm.interpreter.intPool.get().SetUint64(1))
+		x.SetUint64(1)
 	}
-
-	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
@@ -247,18 +258,18 @@ func opAnd(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stac
 }
 
 func opOr(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
-	stack.push(x.Or(x, y))
+	x, y := stack.pop(), stack.peek()
+	y.Or(x, y)
 
-	evm.interpreter.intPool.put(y)
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
 func opXor(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	x, y := stack.pop(), stack.pop()
-	stack.push(x.Xor(x, y))
+	x, y := stack.pop(), stack.peek()
+	y.Xor(x, y)
 
-	evm.interpreter.intPool.put(y)
+	evm.interpreter.intPool.put(x)
 	return nil, nil
 }
 
@@ -277,13 +288,12 @@ func opByte(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Sta
 func opAddmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y, z := stack.pop(), stack.pop(), stack.pop()
 	if z.Cmp(bigZero) > 0 {
-		add := x.Add(x, y)
-		add.Mod(add, z)
-		stack.push(math.U256(add))
+		x.Add(x, y)
+		x.Mod(x, z)
+		stack.push(math.U256(x))
 	} else {
-		stack.push(new(big.Int))
+		stack.push(x.SetUint64(0))
 	}
-
 	evm.interpreter.intPool.put(y, z)
 	return nil, nil
 }
@@ -291,13 +301,12 @@ func opAddmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *S
 func opMulmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	x, y, z := stack.pop(), stack.pop(), stack.pop()
 	if z.Cmp(bigZero) > 0 {
-		mul := x.Mul(x, y)
-		mul.Mod(mul, z)
-		stack.push(math.U256(mul))
+		x.Mul(x, y)
+		x.Mod(x, z)
+		stack.push(math.U256(x))
 	} else {
-		stack.push(new(big.Int))
+		stack.push(x.SetUint64(0))
 	}
-
 	evm.interpreter.intPool.put(y, z)
 	return nil, nil
 }
@@ -370,8 +379,7 @@ func opSha3(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Sta
 	if evm.vmConfig.EnablePreimageRecording {
 		evm.StateDB.AddPreimage(common.BytesToHash(hash), data)
 	}
-
-	stack.push(new(big.Int).SetBytes(hash))
+	stack.push(evm.interpreter.intPool.get().SetBytes(hash))
 
 	evm.interpreter.intPool.put(offset, size)
 	return nil, nil
@@ -383,10 +391,8 @@ func opAddress(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *
 }
 
 func opBalance(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	addr := common.BigToAddress(stack.pop())
-	balance := evm.StateDB.GetBalance(addr)
-
-	stack.push(new(big.Int).Set(balance))
+	slot := stack.peek()
+	slot.Set(evm.StateDB.GetBalance(common.BigToAddress(slot)))
 	return nil, nil
 }
 
@@ -406,7 +412,7 @@ func opCallValue(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack
 }
 
 func opCallDataLoad(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(new(big.Int).SetBytes(getDataBig(contract.Input, stack.pop(), big32)))
+	stack.push(evm.interpreter.intPool.get().SetBytes(getDataBig(contract.Input, stack.pop(), big32)))
 	return nil, nil
 }
 
@@ -437,10 +443,11 @@ func opReturnDataCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory,
 		memOffset  = stack.pop()
 		dataOffset = stack.pop()
 		length     = stack.pop()
-	)
-	defer evm.interpreter.intPool.put(memOffset, dataOffset, length)
 
-	end := new(big.Int).Add(dataOffset, length)
+		end = evm.interpreter.intPool.get().Add(dataOffset, length)
+	)
+	defer evm.interpreter.intPool.put(memOffset, dataOffset, length, end)
+
 	if end.BitLen() > 64 || uint64(len(evm.interpreter.returnData)) < end.Uint64() {
 		return nil, errReturnDataOutOfBounds
 	}
@@ -450,11 +457,8 @@ func opReturnDataCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory,
 }
 
 func opExtCodeSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	a := stack.pop()
-
-	addr := common.BigToAddress(a)
-	a.SetInt64(int64(evm.StateDB.GetCodeSize(addr)))
-	stack.push(a)
+	slot := stack.peek()
+	slot.SetUint64(uint64(evm.StateDB.GetCodeSize(common.BigToAddress(slot))))
 
 	return nil, nil
 }
@@ -462,6 +466,7 @@ func opExtCodeSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, sta
 func opCodeSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	l := evm.interpreter.intPool.get().SetInt64(int64(len(contract.Code)))
 	stack.push(l)
+
 	return nil, nil
 }
 
@@ -504,9 +509,8 @@ func opBlockhash(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack
 	if num.Cmp(n) > 0 && num.Cmp(evm.BlockNumber) < 0 {
 		stack.push(evm.GetHash(num.Uint64()).Big())
 	} else {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	}
-
 	evm.interpreter.intPool.put(num, n)
 	return nil, nil
 }
@@ -517,22 +521,22 @@ func opCoinbase(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack
 }
 
 func opTimestamp(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(math.U256(new(big.Int).Set(evm.Time)))
+	stack.push(math.U256(evm.interpreter.intPool.get().Set(evm.Time)))
 	return nil, nil
 }
 
 func opNumber(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(math.U256(new(big.Int).Set(evm.BlockNumber)))
+	stack.push(math.U256(evm.interpreter.intPool.get().Set(evm.BlockNumber)))
 	return nil, nil
 }
 
 func opDifficulty(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(math.U256(new(big.Int).Set(evm.Difficulty)))
+	stack.push(math.U256(evm.interpreter.intPool.get().Set(evm.Difficulty)))
 	return nil, nil
 }
 
 func opGasLimit(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	stack.push(math.U256(new(big.Int).SetUint64(evm.GasLimit)))
+	stack.push(math.U256(evm.interpreter.intPool.get().SetUint64(evm.GasLimit)))
 	return nil, nil
 }
 
@@ -543,7 +547,7 @@ func opPop(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stac
 
 func opMload(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	offset := stack.pop()
-	val := new(big.Int).SetBytes(memory.Get(offset.Int64(), 32))
+	val := evm.interpreter.intPool.get().SetBytes(memory.Get(offset.Int64(), 32))
 	stack.push(val)
 
 	evm.interpreter.intPool.put(offset)
@@ -647,9 +651,9 @@ func opCreate(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *S
 	// rule) and treat as an error, if the ruleset is frontier we must
 	// ignore this error and pretend the operation was successful.
 	if evm.ChainConfig().IsHomestead(evm.BlockNumber) && suberr == ErrCodeStoreOutOfGas {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	} else if suberr != nil && suberr != ErrCodeStoreOutOfGas {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	} else {
 		stack.push(addr.Big())
 	}
@@ -678,9 +682,9 @@ func opCall(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Sta
 	}
 	ret, returnGas, err := evm.Call(contract, toAddr, args, gas, value)
 	if err != nil {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	} else {
-		stack.push(big.NewInt(1))
+		stack.push(evm.interpreter.intPool.get().SetUint64(1))
 	}
 	if err == nil || err == errExecutionReverted {
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
@@ -707,9 +711,9 @@ func opCallCode(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack
 	}
 	ret, returnGas, err := evm.CallCode(contract, toAddr, args, gas, value)
 	if err != nil {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	} else {
-		stack.push(big.NewInt(1))
+		stack.push(evm.interpreter.intPool.get().SetUint64(1))
 	}
 	if err == nil || err == errExecutionReverted {
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
@@ -732,9 +736,9 @@ func opDelegateCall(pc *uint64, evm *EVM, contract *Contract, memory *Memory, st
 
 	ret, returnGas, err := evm.DelegateCall(contract, toAddr, args, gas)
 	if err != nil {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	} else {
-		stack.push(big.NewInt(1))
+		stack.push(evm.interpreter.intPool.get().SetUint64(1))
 	}
 	if err == nil || err == errExecutionReverted {
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
@@ -757,9 +761,9 @@ func opStaticCall(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stac
 
 	ret, returnGas, err := evm.StaticCall(contract, toAddr, args, gas)
 	if err != nil {
-		stack.push(new(big.Int))
+		stack.push(evm.interpreter.intPool.getZero())
 	} else {
-		stack.push(big.NewInt(1))
+		stack.push(evm.interpreter.intPool.get().SetUint64(1))
 	}
 	if err == nil || err == errExecutionReverted {
 		memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)

core/vm/instructions_test.go

@@ -32,7 +32,7 @@ type twoOperandTest struct {
 
 func testTwoOperandOp(t *testing.T, tests []twoOperandTest, opFn func(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error)) {
 	var (
-		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
+		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{})
 		stack = newstack()
 		pc    = uint64(0)
 	)
@@ -68,7 +68,7 @@ func testTwoOperandOp(t *testing.T, tests []twoOperandTest, opFn func(pc *uint64
 
 func TestByteOp(t *testing.T) {
 	var (
-		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
+		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{})
 		stack = newstack()
 	)
 	tests := []struct {
@@ -161,6 +161,7 @@ func TestSAR(t *testing.T) {
 
 func TestSGT(t *testing.T) {
 	tests := []twoOperandTest{
+
 		{"0000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000000"},
 		{"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0000000000000000000000000000000000000000000000000000000000000000"},
 		{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0000000000000000000000000000000000000000000000000000000000000000"},
@@ -171,6 +172,8 @@ func TestSGT(t *testing.T) {
 		{"8000000000000000000000000000000000000000000000000000000000000001", "8000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000000"},
 		{"8000000000000000000000000000000000000000000000000000000000000001", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0000000000000000000000000000000000000000000000000000000000000001"},
 		{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "8000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000000"},
+		{"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffb", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd", "0000000000000000000000000000000000000000000000000000000000000001"},
+		{"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffb", "0000000000000000000000000000000000000000000000000000000000000000"},
 	}
 	testTwoOperandOp(t, tests, opSgt)
 }
@@ -187,13 +190,15 @@ func TestSLT(t *testing.T) {
 		{"8000000000000000000000000000000000000000000000000000000000000001", "8000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000000"},
 		{"8000000000000000000000000000000000000000000000000000000000000001", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "0000000000000000000000000000000000000000000000000000000000000000"},
 		{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "8000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000001"},
+		{"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffb", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd", "0000000000000000000000000000000000000000000000000000000000000000"},
+		{"fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffb", "0000000000000000000000000000000000000000000000000000000000000001"},
 	}
 	testTwoOperandOp(t, tests, opSlt)
 }
 
 func opBenchmark(bench *testing.B, op func(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error), args ...string) {
 	var (
-		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
+		env   = NewEVM(Context{}, nil, params.TestChainConfig, Config{})
 		stack = newstack()
 	)
 	// convert args
@@ -349,7 +354,11 @@ func BenchmarkOpEq(b *testing.B) {
 
 	opBenchmark(b, opEq, x, y)
 }
-
+func BenchmarkOpEq2(b *testing.B) {
+	x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
+	y := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201fffffffe"
+	opBenchmark(b, opEq, x, y)
+}
 func BenchmarkOpAnd(b *testing.B) {
 	x := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
 	y := "ABCDEF090807060504030201ffffffffffffffffffffffffffffffffffffffff"
@@ -412,3 +421,7 @@ func BenchmarkOpSAR(b *testing.B) {
 
 	opBenchmark(b, opSAR, x, y)
 }
+func BenchmarkOpIsZero(b *testing.B) {
+	x := "FBCDEF090807060504030201ffffffffFBCDEF090807060504030201ffffffff"
+	opBenchmark(b, opIszero, x)
+}

core/vm/interpreter.go

@@ -28,10 +28,6 @@ import (
 type Config struct {
 	// Debug enabled debugging Interpreter options
 	Debug bool
-	// EnableJit enabled the JIT VM
-	EnableJit bool
-	// ForceJit forces the JIT VM
-	ForceJit bool
 	// Tracer is the op code logger
 	Tracer Tracer
 	// NoRecursion disabled Interpreter call, callcode,
@@ -47,7 +43,7 @@ type Config struct {
 
 // Interpreter is used to run Ethereum based contracts and will utilise the
 // passed evmironment to query external sources for state information.
-// The Interpreter will run the byte code VM or JIT VM based on the passed
+// The Interpreter will run the byte code VM based on the passed
 // configuration.
 type Interpreter struct {
 	evm      *EVM

core/vm/intpool.go

@@ -32,24 +32,36 @@ func newIntPool() *intPool {
 	return &intPool{pool: newstack()}
 }
 
+// get retrieves a big int from the pool, allocating one if the pool is empty.
+// Note, the returned int's value is arbitrary and will not be zeroed!
 func (p *intPool) get() *big.Int {
 	if p.pool.len() > 0 {
 		return p.pool.pop()
 	}
 	return new(big.Int)
 }
+
+// getZero retrieves a big int from the pool, setting it to zero or allocating
+// a new one if the pool is empty.
+func (p *intPool) getZero() *big.Int {
+	if p.pool.len() > 0 {
+		return p.pool.pop().SetUint64(0)
+	}
+	return new(big.Int)
+}
+
+// put returns an allocated big int to the pool to be later reused by get calls.
+// Note, the values as saved as is; neither put nor get zeroes the ints out!
 func (p *intPool) put(is ...*big.Int) {
 	if len(p.pool.data) > poolLimit {
 		return
 	}
-
 	for _, i := range is {
 		// verifyPool is a build flag. Pool verification makes sure the integrity
 		// of the integer pool by comparing values to a default value.
 		if verifyPool {
 			i.Set(checkVal)
 		}
-
 		p.pool.push(i)
 	}
 }

core/vm/logger_test.go

@@ -48,7 +48,7 @@ type dummyStateDB struct {
 
 func TestStoreCapture(t *testing.T) {
 	var (
-		env      = NewEVM(Context{}, nil, params.TestChainConfig, Config{EnableJit: false, ForceJit: false})
+		env      = NewEVM(Context{}, nil, params.TestChainConfig, Config{})
 		logger   = NewStructLogger(nil)
 		mem      = NewMemory()
 		stack    = newstack()

core/vm/runtime/runtime.go

@@ -41,7 +41,6 @@ type Config struct {
 	GasLimit    uint64
 	GasPrice    *big.Int
 	Value       *big.Int
-	DisableJit  bool // "disable" so it's enabled by default
 	Debug       bool
 	EVMConfig   vm.Config
 
@@ -92,8 +91,7 @@ func setDefaults(cfg *Config) {
 // It returns the EVM's return value, the new state and an error if it failed.
 //
 // Executes sets up a in memory, temporarily, environment for the execution of
-// the given code. It enabled the JIT by default and make sure that it's restored
-// to it's original state afterwards.
+// the given code. It makes sure that it's restored to it's original state afterwards.
 func Execute(code, input []byte, cfg *Config) ([]byte, *state.StateDB, error) {
 	if cfg == nil {
 		cfg = new(Config)

core/vm/vm_jit.go

@@ -1,389 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// +build evmjit
-
-package vm
-
-/*
-
-void* evmjit_create();
-int   evmjit_run(void* _jit, void* _data, void* _env);
-void  evmjit_destroy(void* _jit);
-
-// Shared library evmjit (e.g. libevmjit.so) is expected to be installed in /usr/local/lib
-// More: https://github.com/ethereum/evmjit
-#cgo LDFLAGS: -levmjit
-*/
-import "C"
-
-/*
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"math/big"
-	"unsafe"
-
-	"github.com/ethereum/go-ethereum/core/state"
-	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/params"
-)
-
-type JitVm struct {
-	env        EVM
-	me         ContextRef
-	callerAddr []byte
-	price      *big.Int
-	data       RuntimeData
-}
-
-type i256 [32]byte
-
-type RuntimeData struct {
-	gas          int64
-	gasPrice     int64
-	callData     *byte
-	callDataSize uint64
-	address      i256
-	caller       i256
-	origin       i256
-	callValue    i256
-	coinBase     i256
-	difficulty   i256
-	gasLimit     i256
-	number       uint64
-	timestamp    int64
-	code         *byte
-	codeSize     uint64
-	codeHash     i256
-}
-
-func hash2llvm(h []byte) i256 {
-	var m i256
-	copy(m[len(m)-len(h):], h) // right aligned copy
-	return m
-}
-
-func llvm2hash(m *i256) []byte {
-	return C.GoBytes(unsafe.Pointer(m), C.int(len(m)))
-}
-
-func llvm2hashRef(m *i256) []byte {
-	return (*[1 << 30]byte)(unsafe.Pointer(m))[:len(m):len(m)]
-}
-
-func address2llvm(addr []byte) i256 {
-	n := hash2llvm(addr)
-	bswap(&n)
-	return n
-}
-
-// bswap swap bytes of the 256-bit integer on LLVM side
-// TODO: Do not change memory on LLVM side, that can conflict with memory access optimizations
-func bswap(m *i256) *i256 {
-	for i, l := 0, len(m); i < l/2; i++ {
-		m[i], m[l-i-1] = m[l-i-1], m[i]
-	}
-	return m
-}
-
-func trim(m []byte) []byte {
-	skip := 0
-	for i := 0; i < len(m); i++ {
-		if m[i] == 0 {
-			skip++
-		} else {
-			break
-		}
-	}
-	return m[skip:]
-}
-
-func getDataPtr(m []byte) *byte {
-	var p *byte
-	if len(m) > 0 {
-		p = &m[0]
-	}
-	return p
-}
-
-func big2llvm(n *big.Int) i256 {
-	m := hash2llvm(n.Bytes())
-	bswap(&m)
-	return m
-}
-
-func llvm2big(m *i256) *big.Int {
-	n := big.NewInt(0)
-	for i := 0; i < len(m); i++ {
-		b := big.NewInt(int64(m[i]))
-		b.Lsh(b, uint(i)*8)
-		n.Add(n, b)
-	}
-	return n
-}
-
-// llvm2bytesRef creates a []byte slice that references byte buffer on LLVM side (as of that not controller by GC)
-// User must ensure that referenced memory is available to Go until the data is copied or not needed any more
-func llvm2bytesRef(data *byte, length uint64) []byte {
-	if length == 0 {
-		return nil
-	}
-	if data == nil {
-		panic("Unexpected nil data pointer")
-	}
-	return (*[1 << 30]byte)(unsafe.Pointer(data))[:length:length]
-}
-
-func untested(condition bool, message string) {
-	if condition {
-		panic("Condition `" + message + "` tested. Remove assert.")
-	}
-}
-
-func assert(condition bool, message string) {
-	if !condition {
-		panic("Assert `" + message + "` failed!")
-	}
-}
-
-func NewJitVm(env EVM) *JitVm {
-	return &JitVm{env: env}
-}
-
-func (self *JitVm) Run(me, caller ContextRef, code []byte, value, gas, price *big.Int, callData []byte) (ret []byte, err error) {
-	// TODO: depth is increased but never checked by VM. VM should not know about it at all.
-	self.env.SetDepth(self.env.Depth() + 1)
-
-	// TODO: Move it to Env.Call() or sth
-	if Precompiled[string(me.Address())] != nil {
-		// if it's address of precompiled contract
-		// fallback to standard VM
-		stdVm := New(self.env)
-		return stdVm.Run(me, caller, code, value, gas, price, callData)
-	}
-
-	if self.me != nil {
-		panic("JitVm.Run() can be called only once per JitVm instance")
-	}
-
-	self.me = me
-	self.callerAddr = caller.Address()
-	self.price = price
-
-	self.data.gas = gas.Int64()
-	self.data.gasPrice = price.Int64()
-	self.data.callData = getDataPtr(callData)
-	self.data.callDataSize = uint64(len(callData))
-	self.data.address = address2llvm(self.me.Address())
-	self.data.caller = address2llvm(caller.Address())
-	self.data.origin = address2llvm(self.env.Origin())
-	self.data.callValue = big2llvm(value)
-	self.data.coinBase = address2llvm(self.env.Coinbase())
-	self.data.difficulty = big2llvm(self.env.Difficulty())
-	self.data.gasLimit = big2llvm(self.env.GasLimit())
-	self.data.number = self.env.BlockNumber().Uint64()
-	self.data.timestamp = self.env.Time()
-	self.data.code = getDataPtr(code)
-	self.data.codeSize = uint64(len(code))
-	self.data.codeHash = hash2llvm(crypto.Keccak256(code)) // TODO: Get already computed hash?
-
-	jit := C.evmjit_create()
-	retCode := C.evmjit_run(jit, unsafe.Pointer(&self.data), unsafe.Pointer(self))
-
-	if retCode < 0 {
-		err = errors.New("OOG from JIT")
-		gas.SetInt64(0) // Set gas to 0, JIT does not bother
-	} else {
-		gas.SetInt64(self.data.gas)
-		if retCode == 1 { // RETURN
-			ret = C.GoBytes(unsafe.Pointer(self.data.callData), C.int(self.data.callDataSize))
-		} else if retCode == 2 { // SUICIDE
-			// TODO: Suicide support logic should be moved to Env to be shared by VM implementations
-			state := self.Env().State()
-			receiverAddr := llvm2hashRef(bswap(&self.data.address))
-			receiver := state.GetOrNewStateObject(receiverAddr)
-			balance := state.GetBalance(me.Address())
-			receiver.AddBalance(balance)
-			state.Delete(me.Address())
-		}
-	}
-
-	C.evmjit_destroy(jit)
-	return
-}
-
-func (self *JitVm) Printf(format string, v ...interface{}) VirtualMachine {
-	return self
-}
-
-func (self *JitVm) Endl() VirtualMachine {
-	return self
-}
-
-func (self *JitVm) Env() EVM {
-	return self.env
-}
-
-//export env_sha3
-func env_sha3(dataPtr *byte, length uint64, resultPtr unsafe.Pointer) {
-	data := llvm2bytesRef(dataPtr, length)
-	hash := crypto.Keccak256(data)
-	result := (*i256)(resultPtr)
-	*result = hash2llvm(hash)
-}
-
-//export env_sstore
-func env_sstore(vmPtr unsafe.Pointer, indexPtr unsafe.Pointer, valuePtr unsafe.Pointer) {
-	vm := (*JitVm)(vmPtr)
-	index := llvm2hash(bswap((*i256)(indexPtr)))
-	value := llvm2hash(bswap((*i256)(valuePtr)))
-	value = trim(value)
-	if len(value) == 0 {
-		prevValue := vm.env.State().GetState(vm.me.Address(), index)
-		if len(prevValue) != 0 {
-			vm.Env().State().Refund(vm.callerAddr, GasSStoreRefund)
-		}
-	}
-
-	vm.env.State().SetState(vm.me.Address(), index, value)
-}
-
-//export env_sload
-func env_sload(vmPtr unsafe.Pointer, indexPtr unsafe.Pointer, resultPtr unsafe.Pointer) {
-	vm := (*JitVm)(vmPtr)
-	index := llvm2hash(bswap((*i256)(indexPtr)))
-	value := vm.env.State().GetState(vm.me.Address(), index)
-	result := (*i256)(resultPtr)
-	*result = hash2llvm(value)
-	bswap(result)
-}
-
-//export env_balance
-func env_balance(_vm unsafe.Pointer, _addr unsafe.Pointer, _result unsafe.Pointer) {
-	vm := (*JitVm)(_vm)
-	addr := llvm2hash((*i256)(_addr))
-	balance := vm.Env().State().GetBalance(addr)
-	result := (*i256)(_result)
-	*result = big2llvm(balance)
-}
-
-//export env_blockhash
-func env_blockhash(_vm unsafe.Pointer, _number unsafe.Pointer, _result unsafe.Pointer) {
-	vm := (*JitVm)(_vm)
-	number := llvm2big((*i256)(_number))
-	result := (*i256)(_result)
-
-	currNumber := vm.Env().BlockNumber()
-	limit := big.NewInt(0).Sub(currNumber, big.NewInt(256))
-	if number.Cmp(limit) >= 0 && number.Cmp(currNumber) < 0 {
-		hash := vm.Env().GetHash(uint64(number.Int64()))
-		*result = hash2llvm(hash)
-	} else {
-		*result = i256{}
-	}
-}
-
-//export env_call
-func env_call(_vm unsafe.Pointer, _gas *int64, _receiveAddr unsafe.Pointer, _value unsafe.Pointer, inDataPtr unsafe.Pointer, inDataLen uint64, outDataPtr *byte, outDataLen uint64, _codeAddr unsafe.Pointer) bool {
-	vm := (*JitVm)(_vm)
-
-	//fmt.Printf("env_call (depth %d)\n", vm.Env().Depth())
-
-	defer func() {
-		if r := recover(); r != nil {
-			fmt.Printf("Recovered in env_call (depth %d, out %p %d): %s\n", vm.Env().Depth(), outDataPtr, outDataLen, r)
-		}
-	}()
-
-	balance := vm.Env().State().GetBalance(vm.me.Address())
-	value := llvm2big((*i256)(_value))
-
-	if balance.Cmp(value) >= 0 {
-		receiveAddr := llvm2hash((*i256)(_receiveAddr))
-		inData := C.GoBytes(inDataPtr, C.int(inDataLen))
-		outData := llvm2bytesRef(outDataPtr, outDataLen)
-		codeAddr := llvm2hash((*i256)(_codeAddr))
-		gas := big.NewInt(*_gas)
-		var out []byte
-		var err error
-		if bytes.Equal(codeAddr, receiveAddr) {
-			out, err = vm.env.Call(vm.me, codeAddr, inData, gas, vm.price, value)
-		} else {
-			out, err = vm.env.CallCode(vm.me, codeAddr, inData, gas, vm.price, value)
-		}
-		*_gas = gas.Int64()
-		if err == nil {
-			copy(outData, out)
-			return true
-		}
-	}
-
-	return false
-}
-
-//export env_create
-func env_create(_vm unsafe.Pointer, _gas *int64, _value unsafe.Pointer, initDataPtr unsafe.Pointer, initDataLen uint64, _result unsafe.Pointer) {
-	vm := (*JitVm)(_vm)
-
-	value := llvm2big((*i256)(_value))
-	initData := C.GoBytes(initDataPtr, C.int(initDataLen)) // TODO: Unnecessary if low balance
-	result := (*i256)(_result)
-	*result = i256{}
-
-	gas := big.NewInt(*_gas)
-	ret, suberr, ref := vm.env.Create(vm.me, nil, initData, gas, vm.price, value)
-	if suberr == nil {
-		dataGas := big.NewInt(int64(len(ret))) // TODO: Not the best design. env.Create can do it, it has the reference to gas counter
-		dataGas.Mul(dataGas, params.CreateDataGas)
-		gas.Sub(gas, dataGas)
-		*result = hash2llvm(ref.Address())
-	}
-	*_gas = gas.Int64()
-}
-
-//export env_log
-func env_log(_vm unsafe.Pointer, dataPtr unsafe.Pointer, dataLen uint64, _topic1 unsafe.Pointer, _topic2 unsafe.Pointer, _topic3 unsafe.Pointer, _topic4 unsafe.Pointer) {
-	vm := (*JitVm)(_vm)
-
-	data := C.GoBytes(dataPtr, C.int(dataLen))
-
-	topics := make([][]byte, 0, 4)
-	if _topic1 != nil {
-		topics = append(topics, llvm2hash((*i256)(_topic1)))
-	}
-	if _topic2 != nil {
-		topics = append(topics, llvm2hash((*i256)(_topic2)))
-	}
-	if _topic3 != nil {
-		topics = append(topics, llvm2hash((*i256)(_topic3)))
-	}
-	if _topic4 != nil {
-		topics = append(topics, llvm2hash((*i256)(_topic4)))
-	}
-
-	vm.Env().AddLog(state.NewLog(vm.me.Address(), topics, data, vm.env.BlockNumber().Uint64()))
-}
-
-//export env_extcode
-func env_extcode(_vm unsafe.Pointer, _addr unsafe.Pointer, o_size *uint64) *byte {
-	vm := (*JitVm)(_vm)
-	addr := llvm2hash((*i256)(_addr))
-	code := vm.Env().State().GetCode(addr)
-	*o_size = uint64(len(code))
-	return getDataPtr(code)
-}*/

core/vm/vm_jit_fake.go

@@ -1,19 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// +build !evmjit
-
-package vm

crypto/bn256/bn256_fast.go

@@ -14,50 +14,22 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-// +build !amd64 appengine gccgo
+// +build amd64 arm64
 
 // Package bn256 implements the Optimal Ate pairing over a 256-bit Barreto-Naehrig curve.
 package bn256
 
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/crypto/bn256/google"
-)
+import "github.com/ethereum/go-ethereum/crypto/bn256/cloudflare"
 
 // G1 is an abstract cyclic group. The zero value is suitable for use as the
 // output of an operation, but cannot be used as an input.
-type G1 struct {
-	bn256.G1
-}
-
-// Add sets e to a+b and then returns e.
-func (e *G1) Add(a, b *G1) *G1 {
-	e.G1.Add(&a.G1, &b.G1)
-	return e
-}
-
-// ScalarMult sets e to a*k and then returns e.
-func (e *G1) ScalarMult(a *G1, k *big.Int) *G1 {
-	e.G1.ScalarMult(&a.G1, k)
-	return e
-}
+type G1 = bn256.G1
 
 // G2 is an abstract cyclic group. The zero value is suitable for use as the
 // output of an operation, but cannot be used as an input.
-type G2 struct {
-	bn256.G2
-}
+type G2 = bn256.G2
 
 // PairingCheck calculates the Optimal Ate pairing for a set of points.
 func PairingCheck(a []*G1, b []*G2) bool {
-	as := make([]*bn256.G1, len(a))
-	for i, p := range a {
-		as[i] = &p.G1
-	}
-	bs := make([]*bn256.G2, len(b))
-	for i, p := range b {
-		bs[i] = &p.G2
-	}
-	return bn256.PairingCheck(as, bs)
+	return bn256.PairingCheck(a, b)
 }

crypto/bn256/bn256_fuzz.go

@@ -0,0 +1,138 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+// +build gofuzz
+
+package bn256
+
+import (
+	"bytes"
+	"math/big"
+
+	cloudflare "github.com/ethereum/go-ethereum/crypto/bn256/cloudflare"
+	google "github.com/ethereum/go-ethereum/crypto/bn256/google"
+)
+
+// FuzzAdd fuzzez bn256 addition between the Google and Cloudflare libraries.
+func FuzzAdd(data []byte) int {
+	// Ensure we have enough data in the first place
+	if len(data) != 128 {
+		return 0
+	}
+	// Ensure both libs can parse the first curve point
+	xc := new(cloudflare.G1)
+	_, errc := xc.Unmarshal(data[:64])
+
+	xg := new(google.G1)
+	_, errg := xg.Unmarshal(data[:64])
+
+	if (errc == nil) != (errg == nil) {
+		panic("parse mismatch")
+	} else if errc != nil {
+		return 0
+	}
+	// Ensure both libs can parse the second curve point
+	yc := new(cloudflare.G1)
+	_, errc = yc.Unmarshal(data[64:])
+
+	yg := new(google.G1)
+	_, errg = yg.Unmarshal(data[64:])
+
+	if (errc == nil) != (errg == nil) {
+		panic("parse mismatch")
+	} else if errc != nil {
+		return 0
+	}
+	// Add the two points and ensure they result in the same output
+	rc := new(cloudflare.G1)
+	rc.Add(xc, yc)
+
+	rg := new(google.G1)
+	rg.Add(xg, yg)
+
+	if !bytes.Equal(rc.Marshal(), rg.Marshal()) {
+		panic("add mismatch")
+	}
+	return 0
+}
+
+// FuzzMul fuzzez bn256 scalar multiplication between the Google and Cloudflare
+// libraries.
+func FuzzMul(data []byte) int {
+	// Ensure we have enough data in the first place
+	if len(data) != 96 {
+		return 0
+	}
+	// Ensure both libs can parse the curve point
+	pc := new(cloudflare.G1)
+	_, errc := pc.Unmarshal(data[:64])
+
+	pg := new(google.G1)
+	_, errg := pg.Unmarshal(data[:64])
+
+	if (errc == nil) != (errg == nil) {
+		panic("parse mismatch")
+	} else if errc != nil {
+		return 0
+	}
+	// Add the two points and ensure they result in the same output
+	rc := new(cloudflare.G1)
+	rc.ScalarMult(pc, new(big.Int).SetBytes(data[64:]))
+
+	rg := new(google.G1)
+	rg.ScalarMult(pg, new(big.Int).SetBytes(data[64:]))
+
+	if !bytes.Equal(rc.Marshal(), rg.Marshal()) {
+		panic("scalar mul mismatch")
+	}
+	return 0
+}
+
+func FuzzPair(data []byte) int {
+	// Ensure we have enough data in the first place
+	if len(data) != 192 {
+		return 0
+	}
+	// Ensure both libs can parse the curve point
+	pc := new(cloudflare.G1)
+	_, errc := pc.Unmarshal(data[:64])
+
+	pg := new(google.G1)
+	_, errg := pg.Unmarshal(data[:64])
+
+	if (errc == nil) != (errg == nil) {
+		panic("parse mismatch")
+	} else if errc != nil {
+		return 0
+	}
+	// Ensure both libs can parse the twist point
+	tc := new(cloudflare.G2)
+	_, errc = tc.Unmarshal(data[64:])
+
+	tg := new(google.G2)
+	_, errg = tg.Unmarshal(data[64:])
+
+	if (errc == nil) != (errg == nil) {
+		panic("parse mismatch")
+	} else if errc != nil {
+		return 0
+	}
+	// Pair the two points and ensure thet result in the same output
+	if cloudflare.PairingCheck([]*cloudflare.G1{pc}, []*cloudflare.G2{tc}) != google.PairingCheck([]*google.G1{pg}, []*google.G2{tg}) {
+		panic("pair mismatch")
+	}
+	return 0
+}

crypto/bn256/bn256_slow.go

@@ -14,50 +14,22 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-// +build amd64,!appengine,!gccgo
+// +build !amd64,!arm64
 
 // Package bn256 implements the Optimal Ate pairing over a 256-bit Barreto-Naehrig curve.
 package bn256
 
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/crypto/bn256/cloudflare"
-)
+import "github.com/ethereum/go-ethereum/crypto/bn256/google"
 
 // G1 is an abstract cyclic group. The zero value is suitable for use as the
 // output of an operation, but cannot be used as an input.
-type G1 struct {
-	bn256.G1
-}
-
-// Add sets e to a+b and then returns e.
-func (e *G1) Add(a, b *G1) *G1 {
-	e.G1.Add(&a.G1, &b.G1)
-	return e
-}
-
-// ScalarMult sets e to a*k and then returns e.
-func (e *G1) ScalarMult(a *G1, k *big.Int) *G1 {
-	e.G1.ScalarMult(&a.G1, k)
-	return e
-}
+type G1 = bn256.G1
 
 // G2 is an abstract cyclic group. The zero value is suitable for use as the
 // output of an operation, but cannot be used as an input.
-type G2 struct {
-	bn256.G2
-}
+type G2 = bn256.G2
 
 // PairingCheck calculates the Optimal Ate pairing for a set of points.
 func PairingCheck(a []*G1, b []*G2) bool {
-	as := make([]*bn256.G1, len(a))
-	for i, p := range a {
-		as[i] = &p.G1
-	}
-	bs := make([]*bn256.G2, len(b))
-	for i, p := range b {
-		bs[i] = &p.G2
-	}
-	return bn256.PairingCheck(as, bs)
+	return bn256.PairingCheck(a, b)
 }

crypto/bn256/cloudflare/bn256_test.go

@@ -1,5 +1,3 @@
-// +build amd64,!appengine,!gccgo
-
 package bn256
 
 import (

crypto/bn256/cloudflare/curve.go

@@ -183,15 +183,24 @@ func (c *curvePoint) Double(a *curvePoint) {
 }
 
 func (c *curvePoint) Mul(a *curvePoint, scalar *big.Int) {
-	sum, t := &curvePoint{}, &curvePoint{}
-	sum.SetInfinity()
+	precomp := [1 << 2]*curvePoint{nil, {}, {}, {}}
+	precomp[1].Set(a)
+	precomp[2].Set(a)
+	gfpMul(&precomp[2].x, &precomp[2].x, xiTo2PSquaredMinus2Over3)
+	precomp[3].Add(precomp[1], precomp[2])
 
-	for i := scalar.BitLen(); i >= 0; i-- {
+	multiScalar := curveLattice.Multi(scalar)
+
+	sum := &curvePoint{}
+	sum.SetInfinity()
+	t := &curvePoint{}
+
+	for i := len(multiScalar) - 1; i >= 0; i-- {
 		t.Double(sum)
-		if scalar.Bit(i) != 0 {
-			sum.Add(t, a)
-		} else {
+		if multiScalar[i] == 0 {
 			sum.Set(t)
+		} else {
+			sum.Add(t, precomp[multiScalar[i]])
 		}
 	}
 	c.Set(sum)

crypto/bn256/cloudflare/example_test.go

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build amd64,!appengine,!gccgo
-
 package bn256
 
 import (

crypto/bn256/cloudflare/gfp.h

@@ -1,32 +0,0 @@
-#define storeBlock(a0,a1,a2,a3, r) \
-	MOVQ a0,  0+r \
-	MOVQ a1,  8+r \
-	MOVQ a2, 16+r \
-	MOVQ a3, 24+r
-
-#define loadBlock(r, a0,a1,a2,a3) \
-	MOVQ  0+r, a0 \
-	MOVQ  8+r, a1 \
-	MOVQ 16+r, a2 \
-	MOVQ 24+r, a3
-
-#define gfpCarry(a0,a1,a2,a3,a4, b0,b1,b2,b3,b4) \
-	\ // b = a-p
-	MOVQ a0, b0 \
-	MOVQ a1, b1 \
-	MOVQ a2, b2 \
-	MOVQ a3, b3 \
-	MOVQ a4, b4 \
-	\
-	SUBQ ·p2+0(SB), b0 \
-	SBBQ ·p2+8(SB), b1 \
-	SBBQ ·p2+16(SB), b2 \
-	SBBQ ·p2+24(SB), b3 \
-	SBBQ $0, b4 \
-	\
-	\ // if b is negative then return a
-	\ // else return b
-	CMOVQCC b0, a0 \
-	CMOVQCC b1, a1 \
-	CMOVQCC b2, a2 \
-	CMOVQCC b3, a3

crypto/bn256/cloudflare/gfp_amd64.go

@@ -1,15 +0,0 @@
-// +build amd64,!appengine,!gccgo
-
-package bn256
-
-// go:noescape
-func gfpNeg(c, a *gfP)
-
-//go:noescape
-func gfpAdd(c, a, b *gfP)
-
-//go:noescape
-func gfpSub(c, a, b *gfP)
-
-//go:noescape
-func gfpMul(c, a, b *gfP)

crypto/bn256/cloudflare/gfp_amd64.s

@@ -1,8 +1,40 @@
-// +build amd64,!appengine,!gccgo
+// +build amd64,!generic
 
-#include "gfp.h"
-#include "mul.h"
-#include "mul_bmi2.h"
+#define storeBlock(a0,a1,a2,a3, r) \
+	MOVQ a0,  0+r \
+	MOVQ a1,  8+r \
+	MOVQ a2, 16+r \
+	MOVQ a3, 24+r
+
+#define loadBlock(r, a0,a1,a2,a3) \
+	MOVQ  0+r, a0 \
+	MOVQ  8+r, a1 \
+	MOVQ 16+r, a2 \
+	MOVQ 24+r, a3
+
+#define gfpCarry(a0,a1,a2,a3,a4, b0,b1,b2,b3,b4) \
+	\ // b = a-p
+	MOVQ a0, b0 \
+	MOVQ a1, b1 \
+	MOVQ a2, b2 \
+	MOVQ a3, b3 \
+	MOVQ a4, b4 \
+	\
+	SUBQ ·p2+0(SB), b0 \
+	SBBQ ·p2+8(SB), b1 \
+	SBBQ ·p2+16(SB), b2 \
+	SBBQ ·p2+24(SB), b3 \
+	SBBQ $0, b4 \
+	\
+	\ // if b is negative then return a
+	\ // else return b
+	CMOVQCC b0, a0 \
+	CMOVQCC b1, a1 \
+	CMOVQCC b2, a2 \
+	CMOVQCC b3, a3
+
+#include "mul_amd64.h"
+#include "mul_bmi2_amd64.h"
 
 TEXT ·gfpNeg(SB),0,$0-16
 	MOVQ ·p2+0(SB), R8

crypto/bn256/cloudflare/gfp_arm64.s

@@ -0,0 +1,113 @@
+// +build arm64,!generic
+
+#define storeBlock(a0,a1,a2,a3, r) \
+	MOVD a0,  0+r \
+	MOVD a1,  8+r \
+	MOVD a2, 16+r \
+	MOVD a3, 24+r
+
+#define loadBlock(r, a0,a1,a2,a3) \
+	MOVD  0+r, a0 \
+	MOVD  8+r, a1 \
+	MOVD 16+r, a2 \
+	MOVD 24+r, a3
+
+#define loadModulus(p0,p1,p2,p3) \
+	MOVD ·p2+0(SB), p0 \
+	MOVD ·p2+8(SB), p1 \
+	MOVD ·p2+16(SB), p2 \
+	MOVD ·p2+24(SB), p3
+
+#include "mul_arm64.h"
+
+TEXT ·gfpNeg(SB),0,$0-16
+	MOVD a+8(FP), R0
+	loadBlock(0(R0), R1,R2,R3,R4)
+	loadModulus(R5,R6,R7,R8)
+
+	SUBS R1, R5, R1
+	SBCS R2, R6, R2
+	SBCS R3, R7, R3
+	SBCS R4, R8, R4
+
+	SUBS R5, R1, R5
+	SBCS R6, R2, R6
+	SBCS R7, R3, R7
+	SBCS R8, R4, R8
+
+	CSEL CS, R5, R1, R1
+	CSEL CS, R6, R2, R2
+	CSEL CS, R7, R3, R3
+	CSEL CS, R8, R4, R4
+
+	MOVD c+0(FP), R0
+	storeBlock(R1,R2,R3,R4, 0(R0))
+	RET
+
+TEXT ·gfpAdd(SB),0,$0-24
+	MOVD a+8(FP), R0
+	loadBlock(0(R0), R1,R2,R3,R4)
+	MOVD b+16(FP), R0
+	loadBlock(0(R0), R5,R6,R7,R8)
+	loadModulus(R9,R10,R11,R12)
+	MOVD ZR, R0
+
+	ADDS R5, R1
+	ADCS R6, R2
+	ADCS R7, R3
+	ADCS R8, R4
+	ADCS ZR, R0
+
+	SUBS  R9, R1, R5
+	SBCS R10, R2, R6
+	SBCS R11, R3, R7
+	SBCS R12, R4, R8
+	SBCS  ZR, R0, R0
+
+	CSEL CS, R5, R1, R1
+	CSEL CS, R6, R2, R2
+	CSEL CS, R7, R3, R3
+	CSEL CS, R8, R4, R4
+
+	MOVD c+0(FP), R0
+	storeBlock(R1,R2,R3,R4, 0(R0))
+	RET
+
+TEXT ·gfpSub(SB),0,$0-24
+	MOVD a+8(FP), R0
+	loadBlock(0(R0), R1,R2,R3,R4)
+	MOVD b+16(FP), R0
+	loadBlock(0(R0), R5,R6,R7,R8)
+	loadModulus(R9,R10,R11,R12)
+
+	SUBS R5, R1
+	SBCS R6, R2
+	SBCS R7, R3
+	SBCS R8, R4
+
+	CSEL CS, ZR,  R9,  R9
+	CSEL CS, ZR, R10, R10
+	CSEL CS, ZR, R11, R11
+	CSEL CS, ZR, R12, R12
+
+	ADDS  R9, R1
+	ADCS R10, R2
+	ADCS R11, R3
+	ADCS R12, R4
+
+	MOVD c+0(FP), R0
+	storeBlock(R1,R2,R3,R4, 0(R0))
+	RET
+
+TEXT ·gfpMul(SB),0,$0-24
+	MOVD a+8(FP), R0
+	loadBlock(0(R0), R1,R2,R3,R4)
+	MOVD b+16(FP), R0
+	loadBlock(0(R0), R5,R6,R7,R8)
+
+	mul(R9,R10,R11,R12,R13,R14,R15,R16)
+	gfpReduce()
+
+	MOVD c+0(FP), R0
+	storeBlock(R1,R2,R3,R4, 0(R0))
+	RET

crypto/bn256/cloudflare/gfp_decl.go

@@ -0,0 +1,18 @@
+// +build amd64,!generic arm64,!generic
+
+package bn256
+
+// This file contains forward declarations for the architecture-specific
+// assembly implementations of these functions, provided that they exist.
+
+// go:noescape
+func gfpNeg(c, a *gfP)
+
+//go:noescape
+func gfpAdd(c, a, b *gfP)
+
+//go:noescape
+func gfpSub(c, a, b *gfP)
+
+//go:noescape
+func gfpMul(c, a, b *gfP)

crypto/bn256/cloudflare/gfp_generic.go

@@ -0,0 +1,173 @@
+// +build !amd64,!arm64 generic
+
+package bn256
+
+func gfpCarry(a *gfP, head uint64) {
+	b := &gfP{}
+
+	var carry uint64
+	for i, pi := range p2 {
+		ai := a[i]
+		bi := ai - pi - carry
+		b[i] = bi
+		carry = (pi&^ai | (pi|^ai)&bi) >> 63
+	}
+	carry = carry &^ head
+
+	// If b is negative, then return a.
+	// Else return b.
+	carry = -carry
+	ncarry := ^carry
+	for i := 0; i < 4; i++ {
+		a[i] = (a[i] & carry) | (b[i] & ncarry)
+	}
+}
+
+func gfpNeg(c, a *gfP) {
+	var carry uint64
+	for i, pi := range p2 {
+		ai := a[i]
+		ci := pi - ai - carry
+		c[i] = ci
+		carry = (ai&^pi | (ai|^pi)&ci) >> 63
+	}
+	gfpCarry(c, 0)
+}
+
+func gfpAdd(c, a, b *gfP) {
+	var carry uint64
+	for i, ai := range a {
+		bi := b[i]
+		ci := ai + bi + carry
+		c[i] = ci
+		carry = (ai&bi | (ai|bi)&^ci) >> 63
+	}
+	gfpCarry(c, carry)
+}
+
+func gfpSub(c, a, b *gfP) {
+	t := &gfP{}
+
+	var carry uint64
+	for i, pi := range p2 {
+		bi := b[i]
+		ti := pi - bi - carry
+		t[i] = ti
+		carry = (bi&^pi | (bi|^pi)&ti) >> 63
+	}
+
+	carry = 0
+	for i, ai := range a {
+		ti := t[i]
+		ci := ai + ti + carry
+		c[i] = ci
+		carry = (ai&ti | (ai|ti)&^ci) >> 63
+	}
+	gfpCarry(c, carry)
+}
+
+func mul(a, b [4]uint64) [8]uint64 {
+	const (
+		mask16 uint64 = 0x0000ffff
+		mask32 uint64 = 0xffffffff
+	)
+
+	var buff [32]uint64
+	for i, ai := range a {
+		a0, a1, a2, a3 := ai&mask16, (ai>>16)&mask16, (ai>>32)&mask16, ai>>48
+
+		for j, bj := range b {
+			b0, b2 := bj&mask32, bj>>32
+
+			off := 4 * (i + j)
+			buff[off+0] += a0 * b0
+			buff[off+1] += a1 * b0
+			buff[off+2] += a2*b0 + a0*b2
+			buff[off+3] += a3*b0 + a1*b2
+			buff[off+4] += a2 * b2
+			buff[off+5] += a3 * b2
+		}
+	}
+
+	for i := uint(1); i < 4; i++ {
+		shift := 16 * i
+
+		var head, carry uint64
+		for j := uint(0); j < 8; j++ {
+			block := 4 * j
+
+			xi := buff[block]
+			yi := (buff[block+i] << shift) + head
+			zi := xi + yi + carry
+			buff[block] = zi
+			carry = (xi&yi | (xi|yi)&^zi) >> 63
+
+			head = buff[block+i] >> (64 - shift)
+		}
+	}
+
+	return [8]uint64{buff[0], buff[4], buff[8], buff[12], buff[16], buff[20], buff[24], buff[28]}
+}
+
+func halfMul(a, b [4]uint64) [4]uint64 {
+	const (
+		mask16 uint64 = 0x0000ffff
+		mask32 uint64 = 0xffffffff
+	)
+
+	var buff [18]uint64
+	for i, ai := range a {
+		a0, a1, a2, a3 := ai&mask16, (ai>>16)&mask16, (ai>>32)&mask16, ai>>48
+
+		for j, bj := range b {
+			if i+j > 3 {
+				break
+			}
+			b0, b2 := bj&mask32, bj>>32
+
+			off := 4 * (i + j)
+			buff[off+0] += a0 * b0
+			buff[off+1] += a1 * b0
+			buff[off+2] += a2*b0 + a0*b2
+			buff[off+3] += a3*b0 + a1*b2
+			buff[off+4] += a2 * b2
+			buff[off+5] += a3 * b2
+		}
+	}
+
+	for i := uint(1); i < 4; i++ {
+		shift := 16 * i
+
+		var head, carry uint64
+		for j := uint(0); j < 4; j++ {
+			block := 4 * j
+
+			xi := buff[block]
+			yi := (buff[block+i] << shift) + head
+			zi := xi + yi + carry
+			buff[block] = zi
+			carry = (xi&yi | (xi|yi)&^zi) >> 63
+
+			head = buff[block+i] >> (64 - shift)
+		}
+	}
+
+	return [4]uint64{buff[0], buff[4], buff[8], buff[12]}
+}
+
+func gfpMul(c, a, b *gfP) {
+	T := mul(*a, *b)
+	m := halfMul([4]uint64{T[0], T[1], T[2], T[3]}, np)
+	t := mul([4]uint64{m[0], m[1], m[2], m[3]}, p2)
+
+	var carry uint64
+	for i, Ti := range T {
+		ti := t[i]
+		zi := Ti + ti + carry
+		T[i] = zi
+		carry = (Ti&ti | (Ti|ti)&^zi) >> 63
+	}
+
+	*c = gfP{T[4], T[5], T[6], T[7]}
+	gfpCarry(c, carry)
+}

crypto/bn256/cloudflare/gfp_pure.go

@@ -1,19 +0,0 @@
-//  +build !amd64 appengine gccgo
-
-package bn256
-
-func gfpNeg(c, a *gfP) {
-	panic("unsupported architecture")
-}
-
-func gfpAdd(c, a, b *gfP) {
-	panic("unsupported architecture")
-}
-
-func gfpSub(c, a, b *gfP) {
-	panic("unsupported architecture")
-}
-
-func gfpMul(c, a, b *gfP) {
-	panic("unsupported architecture")
-}

crypto/bn256/cloudflare/gfp_test.go

@@ -1,5 +1,3 @@
-// +build amd64,!appengine,!gccgo
-
 package bn256
 
 import (

crypto/bn256/cloudflare/lattice.go

@@ -0,0 +1,115 @@
+package bn256
+
+import (
+	"math/big"
+)
+
+var half = new(big.Int).Rsh(Order, 1)
+
+var curveLattice = &lattice{
+	vectors: [][]*big.Int{
+		{bigFromBase10("147946756881789319000765030803803410728"), bigFromBase10("147946756881789319010696353538189108491")},
+		{bigFromBase10("147946756881789319020627676272574806254"), bigFromBase10("-147946756881789318990833708069417712965")},
+	},
+	inverse: []*big.Int{
+		bigFromBase10("147946756881789318990833708069417712965"),
+		bigFromBase10("147946756881789319010696353538189108491"),
+	},
+	det: bigFromBase10("43776485743678550444492811490514550177096728800832068687396408373151616991234"),
+}
+
+var targetLattice = &lattice{
+	vectors: [][]*big.Int{
+		{bigFromBase10("9931322734385697761"), bigFromBase10("9931322734385697761"), bigFromBase10("9931322734385697763"), bigFromBase10("9931322734385697764")},
+		{bigFromBase10("4965661367192848881"), bigFromBase10("4965661367192848881"), bigFromBase10("4965661367192848882"), bigFromBase10("-9931322734385697762")},
+		{bigFromBase10("-9931322734385697762"), bigFromBase10("-4965661367192848881"), bigFromBase10("4965661367192848881"), bigFromBase10("-4965661367192848882")},
+		{bigFromBase10("9931322734385697763"), bigFromBase10("-4965661367192848881"), bigFromBase10("-4965661367192848881"), bigFromBase10("-4965661367192848881")},
+	},
+	inverse: []*big.Int{
+		bigFromBase10("734653495049373973658254490726798021314063399421879442165"),
+		bigFromBase10("147946756881789319000765030803803410728"),
+		bigFromBase10("-147946756881789319005730692170996259609"),
+		bigFromBase10("1469306990098747947464455738335385361643788813749140841702"),
+	},
+	det: new(big.Int).Set(Order),
+}
+
+type lattice struct {
+	vectors [][]*big.Int
+	inverse []*big.Int
+	det     *big.Int
+}
+
+// decompose takes a scalar mod Order as input and finds a short, positive decomposition of it wrt to the lattice basis.
+func (l *lattice) decompose(k *big.Int) []*big.Int {
+	n := len(l.inverse)
+
+	// Calculate closest vector in lattice to <k,0,0,...> with Babai's rounding.
+	c := make([]*big.Int, n)
+	for i := 0; i < n; i++ {
+		c[i] = new(big.Int).Mul(k, l.inverse[i])
+		round(c[i], l.det)
+	}
+
+	// Transform vectors according to c and subtract <k,0,0,...>.
+	out := make([]*big.Int, n)
+	temp := new(big.Int)
+
+	for i := 0; i < n; i++ {
+		out[i] = new(big.Int)
+
+		for j := 0; j < n; j++ {
+			temp.Mul(c[j], l.vectors[j][i])
+			out[i].Add(out[i], temp)
+		}
+
+		out[i].Neg(out[i])
+		out[i].Add(out[i], l.vectors[0][i]).Add(out[i], l.vectors[0][i])
+	}
+	out[0].Add(out[0], k)
+
+	return out
+}
+
+func (l *lattice) Precompute(add func(i, j uint)) {
+	n := uint(len(l.vectors))
+	total := uint(1) << n
+
+	for i := uint(0); i < n; i++ {
+		for j := uint(0); j < total; j++ {
+			if (j>>i)&1 == 1 {
+				add(i, j)
+			}
+		}
+	}
+}
+
+func (l *lattice) Multi(scalar *big.Int) []uint8 {
+	decomp := l.decompose(scalar)
+
+	maxLen := 0
+	for _, x := range decomp {
+		if x.BitLen() > maxLen {
+			maxLen = x.BitLen()
+		}
+	}
+
+	out := make([]uint8, maxLen)
+	for j, x := range decomp {
+		for i := 0; i < maxLen; i++ {
+			out[i] += uint8(x.Bit(i)) << uint(j)
+		}
+	}
+
+	return out
+}
+
+// round sets num to num/denom rounded to the nearest integer.
+func round(num, denom *big.Int) {
+	r := new(big.Int)
+	num.DivMod(num, denom, r)
+
+	if r.Cmp(half) == 1 {
+		num.Add(num, big.NewInt(1))
+	}
+}

crypto/bn256/cloudflare/lattice_test.go

@@ -0,0 +1,29 @@
+package bn256
+
+import (
+	"crypto/rand"
+
+	"testing"
+)
+
+func TestLatticeReduceCurve(t *testing.T) {
+	k, _ := rand.Int(rand.Reader, Order)
+	ks := curveLattice.decompose(k)
+
+	if ks[0].BitLen() > 130 || ks[1].BitLen() > 130 {
+		t.Fatal("reduction too large")
+	} else if ks[0].Sign() < 0 || ks[1].Sign() < 0 {
+		t.Fatal("reduction must be positive")
+	}
+}
+
+func TestLatticeReduceTarget(t *testing.T) {
+	k, _ := rand.Int(rand.Reader, Order)
+	ks := targetLattice.decompose(k)
+
+	if ks[0].BitLen() > 66 || ks[1].BitLen() > 66 || ks[2].BitLen() > 66 || ks[3].BitLen() > 66 {
+		t.Fatal("reduction too large")
+	} else if ks[0].Sign() < 0 || ks[1].Sign() < 0 || ks[2].Sign() < 0 || ks[3].Sign() < 0 {
+		t.Fatal("reduction must be positive")
+	}
+}

crypto/bn256/cloudflare/main_test.go

@@ -1,5 +1,3 @@
-// +build amd64,!appengine,!gccgo
-
 package bn256
 
 import (

crypto/bn256/cloudflare/mul_arm64.h

@@ -0,0 +1,133 @@
+#define mul(c0,c1,c2,c3,c4,c5,c6,c7) \
+	MUL R1, R5, c0 \
+	UMULH R1, R5, c1 \
+	MUL R1, R6, R0 \
+	ADDS R0, c1 \
+	UMULH R1, R6, c2 \
+	MUL R1, R7, R0 \
+	ADCS R0, c2 \
+	UMULH R1, R7, c3 \
+	MUL R1, R8, R0 \
+	ADCS R0, c3 \
+	UMULH R1, R8, c4 \
+	ADCS ZR, c4 \
+	\
+	MUL R2, R5, R25 \
+	UMULH R2, R5, R26 \
+	MUL R2, R6, R0 \
+	ADDS R0, R26 \
+	UMULH R2, R6, R27 \
+	MUL R2, R7, R0 \
+	ADCS R0, R27 \
+	UMULH R2, R7, R29 \
+	MUL R2, R8, R0 \
+	ADCS R0, R29 \
+	UMULH R2, R8, c5 \
+	ADCS ZR, c5 \
+	ADDS R25, c1 \
+	ADCS R26, c2 \
+	ADCS R27, c3 \
+	ADCS R29, c4 \
+	ADCS  ZR, c5 \
+	\
+	MUL R3, R5, R25 \
+	UMULH R3, R5, R26 \
+	MUL R3, R6, R0 \
+	ADDS R0, R26 \
+	UMULH R3, R6, R27 \
+	MUL R3, R7, R0 \
+	ADCS R0, R27 \
+	UMULH R3, R7, R29 \
+	MUL R3, R8, R0 \
+	ADCS R0, R29 \
+	UMULH R3, R8, c6 \
+	ADCS ZR, c6 \
+	ADDS R25, c2 \
+	ADCS R26, c3 \
+	ADCS R27, c4 \
+	ADCS R29, c5 \
+	ADCS  ZR, c6 \
+	\
+	MUL R4, R5, R25 \
+	UMULH R4, R5, R26 \
+	MUL R4, R6, R0 \
+	ADDS R0, R26 \
+	UMULH R4, R6, R27 \
+	MUL R4, R7, R0 \
+	ADCS R0, R27 \
+	UMULH R4, R7, R29 \
+	MUL R4, R8, R0 \
+	ADCS R0, R29 \
+	UMULH R4, R8, c7 \
+	ADCS ZR, c7 \
+	ADDS R25, c3 \
+	ADCS R26, c4 \
+	ADCS R27, c5 \
+	ADCS R29, c6 \
+	ADCS  ZR, c7
+
+#define gfpReduce() \
+	\ // m = (T * N') mod R, store m in R1:R2:R3:R4
+	MOVD ·np+0(SB), R17 \
+	MOVD ·np+8(SB), R18 \
+	MOVD ·np+16(SB), R19 \
+	MOVD ·np+24(SB), R20 \
+	\
+	MUL R9, R17, R1 \
+	UMULH R9, R17, R2 \
+	MUL R9, R18, R0 \
+	ADDS R0, R2 \
+	UMULH R9, R18, R3 \
+	MUL R9, R19, R0 \
+	ADCS R0, R3 \
+	UMULH R9, R19, R4 \
+	MUL R9, R20, R0 \
+	ADCS R0, R4 \
+	\
+	MUL R10, R17, R21 \
+	UMULH R10, R17, R22 \
+	MUL R10, R18, R0 \
+	ADDS R0, R22 \
+	UMULH R10, R18, R23 \
+	MUL R10, R19, R0 \
+	ADCS R0, R23 \
+	ADDS R21, R2 \
+	ADCS R22, R3 \
+	ADCS R23, R4 \
+	\
+	MUL R11, R17, R21 \
+	UMULH R11, R17, R22 \
+	MUL R11, R18, R0 \
+	ADDS R0, R22 \
+	ADDS R21, R3 \
+	ADCS R22, R4 \
+	\
+	MUL R12, R17, R21 \
+	ADDS R21, R4 \
+	\
+	\ // m * N
+	loadModulus(R5,R6,R7,R8) \
+	mul(R17,R18,R19,R20,R21,R22,R23,R24) \
+	\
+	\ // Add the 512-bit intermediate to m*N
+	MOVD  ZR, R25 \
+	ADDS  R9, R17 \
+	ADCS R10, R18 \
+	ADCS R11, R19 \
+	ADCS R12, R20 \
+	ADCS R13, R21 \
+	ADCS R14, R22 \
+	ADCS R15, R23 \
+	ADCS R16, R24 \
+	ADCS  ZR, R25 \
+	\
+	\ // Our output is R21:R22:R23:R24. Reduce mod p if necessary.
+	SUBS R5, R21, R10 \
+	SBCS R6, R22, R11 \
+	SBCS R7, R23, R12 \
+	SBCS R8, R24, R13 \
+	\
+	CSEL CS, R10, R21, R1 \
+	CSEL CS, R11, R22, R2 \
+	CSEL CS, R12, R23, R3 \
+	CSEL CS, R13, R24, R4

crypto/ecies/ecies.go

@@ -230,7 +230,7 @@ func symEncrypt(rand io.Reader, params *ECIESParams, key, m []byte) (ct []byte,
 
 // symDecrypt carries out CTR decryption using the block cipher specified in
 // the parameters
-func symDecrypt(rand io.Reader, params *ECIESParams, key, ct []byte) (m []byte, err error) {
+func symDecrypt(params *ECIESParams, key, ct []byte) (m []byte, err error) {
 	c, err := params.Cipher(key)
 	if err != nil {
 		return
@@ -292,7 +292,7 @@ func Encrypt(rand io.Reader, pub *PublicKey, m, s1, s2 []byte) (ct []byte, err e
 }
 
 // Decrypt decrypts an ECIES ciphertext.
-func (prv *PrivateKey) Decrypt(rand io.Reader, c, s1, s2 []byte) (m []byte, err error) {
+func (prv *PrivateKey) Decrypt(c, s1, s2 []byte) (m []byte, err error) {
 	if len(c) == 0 {
 		return nil, ErrInvalidMessage
 	}
@@ -361,6 +361,6 @@ func (prv *PrivateKey) Decrypt(rand io.Reader, c, s1, s2 []byte) (m []byte, err
 		return
 	}
 
-	m, err = symDecrypt(rand, params, Ke, c[mStart:mEnd])
+	m, err = symDecrypt(params, Ke, c[mStart:mEnd])
 	return
 }

crypto/ecies/ecies_test.go

@@ -270,7 +270,7 @@ func TestEncryptDecrypt(t *testing.T) {
 		t.FailNow()
 	}
 
-	pt, err := prv2.Decrypt(rand.Reader, ct, nil, nil)
+	pt, err := prv2.Decrypt(ct, nil, nil)
 	if err != nil {
 		fmt.Println(err.Error())
 		t.FailNow()
@@ -281,7 +281,7 @@ func TestEncryptDecrypt(t *testing.T) {
 		t.FailNow()
 	}
 
-	_, err = prv1.Decrypt(rand.Reader, ct, nil, nil)
+	_, err = prv1.Decrypt(ct, nil, nil)
 	if err == nil {
 		fmt.Println("ecies: encryption should not have succeeded")
 		t.FailNow()
@@ -301,7 +301,7 @@ func TestDecryptShared2(t *testing.T) {
 	}
 
 	// Check that decrypting with correct shared data works.
-	pt, err := prv.Decrypt(rand.Reader, ct, nil, shared2)
+	pt, err := prv.Decrypt(ct, nil, shared2)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -310,10 +310,10 @@ func TestDecryptShared2(t *testing.T) {
 	}
 
 	// Decrypting without shared data or incorrect shared data fails.
-	if _, err = prv.Decrypt(rand.Reader, ct, nil, nil); err == nil {
+	if _, err = prv.Decrypt(ct, nil, nil); err == nil {
 		t.Fatal("ecies: decrypting without shared data didn't fail")
 	}
-	if _, err = prv.Decrypt(rand.Reader, ct, nil, []byte("garbage")); err == nil {
+	if _, err = prv.Decrypt(ct, nil, []byte("garbage")); err == nil {
 		t.Fatal("ecies: decrypting with incorrect shared data didn't fail")
 	}
 }
@@ -381,7 +381,7 @@ func testParamSelection(t *testing.T, c testCase) {
 		t.FailNow()
 	}
 
-	pt, err := prv2.Decrypt(rand.Reader, ct, nil, nil)
+	pt, err := prv2.Decrypt(ct, nil, nil)
 	if err != nil {
 		fmt.Printf("%s (%s)\n", err.Error(), c.Name)
 		t.FailNow()
@@ -393,7 +393,7 @@ func testParamSelection(t *testing.T, c testCase) {
 		t.FailNow()
 	}
 
-	_, err = prv1.Decrypt(rand.Reader, ct, nil, nil)
+	_, err = prv1.Decrypt(ct, nil, nil)
 	if err == nil {
 		fmt.Printf("ecies: encryption should not have succeeded (%s)\n",
 			c.Name)
@@ -422,7 +422,7 @@ func TestBasicKeyValidation(t *testing.T) {
 
 	for _, b := range badBytes {
 		ct[0] = b
-		_, err := prv.Decrypt(rand.Reader, ct, nil, nil)
+		_, err := prv.Decrypt(ct, nil, nil)
 		if err != ErrInvalidPublicKey {
 			fmt.Println("ecies: validated an invalid key")
 			t.FailNow()
@@ -441,14 +441,14 @@ func TestBox(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	pt, err := prv2.Decrypt(rand.Reader, ct, nil, nil)
+	pt, err := prv2.Decrypt(ct, nil, nil)
 	if err != nil {
 		t.Fatal(err)
 	}
 	if !bytes.Equal(pt, message) {
 		t.Fatal("ecies: plaintext doesn't match message")
 	}
-	if _, err = prv1.Decrypt(rand.Reader, ct, nil, nil); err == nil {
+	if _, err = prv1.Decrypt(ct, nil, nil); err == nil {
 		t.Fatal("ecies: encryption should not have succeeded")
 	}
 }

dashboard/README.md

@@ -12,28 +12,27 @@ The client's UI uses [React][React] with JSX syntax, which is validated by the [
 As the dashboard depends on certain NPM packages (which are not included in the `go-ethereum` repo), these need to be installed first:
 
 ```
-$ (cd dashboard/assets && npm install)
-$ (cd dashboard/assets && ./node_modules/.bin/flow-typed install)
+$ (cd dashboard/assets && yarn install && yarn flow)
 ```
 
-Normally the dashboard assets are bundled into Geth via `go-bindata` to avoid external dependencies. Rebuilding Geth after each UI modification however is not feasible from a developer perspective. Instead, we can run `webpack` in watch mode to automatically rebundle the UI, and ask `geth` to use external assets to not rely on compiled resources:
+Normally the dashboard assets are bundled into Geth via `go-bindata` to avoid external dependencies. Rebuilding Geth after each UI modification however is not feasible from a developer perspective. Instead, we can run `yarn dev` to watch for file system changes and refresh the browser automatically.
 
 ```
-$ (cd dashboard/assets && ./node_modules/.bin/webpack --watch)
-$ geth --dashboard --dashboard.assets=dashboard/assets --vmodule=dashboard=5
+$ geth --dashboard --vmodule=dashboard=5
+$ (cd dashboard/assets && yarn dev)
 ```
 
 To bundle up the final UI into Geth, run `go generate`:
 
 ```
-$ go generate ./dashboard
+$ (cd dashboard && go generate)
 ```
 
 ### Static type checking
 
 Since JavaScript doesn't provide type safety, [Flow][Flow] is used to check types. These are only useful during development, so at the end of the process Babel will strip them.
 
-To take advantage of static type checking, your IDE needs to be prepared for it. In case of [Atom][Atom] a configuration guide can be found [here][Atom config]: Install the [Nuclide][Nuclide] package for Flow support, making sure it installs all of its support packages by enabling `Install Recommended Packages on Startup`, and set the path of the `flow-bin` which were installed previously by `npm`.
+To take advantage of static type checking, your IDE needs to be prepared for it. In case of [Atom][Atom] a configuration guide can be found [here][Atom config]: Install the [Nuclide][Nuclide] package for Flow support, making sure it installs all of its support packages by enabling `Install Recommended Packages on Startup`, and set the path of the `flow-bin` which were installed previously by `yarn`.
 
 For more IDE support install the `linter-eslint` package too, which finds the `.eslintrc` file, and provides real-time linting. Atom warns, that these two packages are incompatible, but they seem to work well together. For third-party library errors and auto-completion [flow-typed][flow-typed] is used.
 
@@ -41,7 +40,7 @@ For more IDE support install the `linter-eslint` package too, which finds the `.
 
 [Webpack][Webpack] offers handy tools for visualizing the bundle's dependency tree and space usage.
 
-* Generate the bundle's profile running `webpack --profile --json > stats.json`
+* Generate the bundle's profile running `yarn stats`
 * For the _dependency tree_ go to [Webpack Analyze][WA], and import `stats.json`
 * For the _space usage_ go to [Webpack Visualizer][WV], and import `stats.json`
 

dashboard/assets/components/CustomTooltip.jsx

@@ -38,15 +38,15 @@ export const percentPlotter = <T>(text: string, mapper: (T => T) = multiplier(1)
 };
 
 // unit contains the units for the bytePlotter.
-const unit = ['B', 'KB', 'MB', 'GB', 'TB', 'PB'];
+const unit = ['', 'Ki', 'Mi', 'Gi', 'Ti', 'Pi', 'Ei', 'Zi', 'Yi'];
 
 // simplifyBytes returns the simplified version of the given value followed by the unit.
 const simplifyBytes = (x: number) => {
 	let i = 0;
-	for (; x > 1024 && i < 5; i++) {
+	for (; x > 1024 && i < 8; i++) {
 		x /= 1024;
 	}
-	return x.toFixed(2).toString().concat(' ', unit[i]);
+	return x.toFixed(2).toString().concat(' ', unit[i], 'B');
 };
 
 // bytePlotter renders a tooltip, which displays the payload as a byte value.

dashboard/assets/components/Dashboard.jsx

@@ -81,7 +81,11 @@ const defaultContent: Content = {
 		version: null,
 		commit:  null,
 	},
-	home: {
+	home:    {},
+	chain:   {},
+	txpool:  {},
+	network: {},
+	system:  {
 		activeMemory:   [],
 		virtualMemory:  [],
 		networkIngress: [],
@@ -91,10 +95,6 @@ const defaultContent: Content = {
 		diskRead:       [],
 		diskWrite:      [],
 	},
-	chain:   {},
-	txpool:  {},
-	network: {},
-	system:  {},
 	logs:    {
 		log: [],
 	},
@@ -108,7 +108,11 @@ const updaters = {
 		version: replacer,
 		commit:  replacer,
 	},
-	home: {
+	home:    null,
+	chain:   null,
+	txpool:  null,
+	network: null,
+	system:  {
 		activeMemory:   appender(200),
 		virtualMemory:  appender(200),
 		networkIngress: appender(200),
@@ -118,11 +122,7 @@ const updaters = {
 		diskRead:       appender(200),
 		diskWrite:      appender(200),
 	},
-	chain:   null,
-	txpool:  null,
-	network: null,
-	system:  null,
-	logs:    {
+	logs: {
 		log: appender(200),
 	},
 };
@@ -136,7 +136,7 @@ const styles = {
 		height:   '100%',
 		zIndex:   1,
 		overflow: 'hidden',
-	}
+	},
 };
 
 // themeStyles returns the styles generated from the theme for the component.
@@ -178,7 +178,8 @@ class Dashboard extends Component<Props, State> {
 	// reconnect establishes a websocket connection with the server, listens for incoming messages
 	// and tries to reconnect on connection loss.
 	reconnect = () => {
-		const server = new WebSocket(`${((window.location.protocol === 'https:') ? 'wss://' : 'ws://') + window.location.host}/api`);
+		// PROD is defined by webpack.
+		const server = new WebSocket(`${((window.location.protocol === 'https:') ? 'wss://' : 'ws://')}${PROD ? window.location.host : 'localhost:8080'}/api`);
 		server.onopen = () => {
 			this.setState({content: defaultContent, shouldUpdate: {}});
 		};
@@ -217,7 +218,6 @@ class Dashboard extends Component<Props, State> {
 		return (
 			<div className={this.props.classes.dashboard} style={styles.dashboard}>
 				<Header
-					opened={this.state.sideBar}
 					switchSideBar={this.switchSideBar}
 				/>
 				<Body

dashboard/assets/components/Footer.jsx

@@ -26,7 +26,17 @@ import {ResponsiveContainer, AreaChart, Area, Tooltip} from 'recharts';
 import ChartRow from './ChartRow';
 import CustomTooltip, {bytePlotter, bytePerSecPlotter, percentPlotter, multiplier} from './CustomTooltip';
 import {styles as commonStyles} from '../common';
-import type {Content} from '../types/content';
+import type {General, System} from '../types/content';
+
+const FOOTER_SYNC_ID = 'footerSyncId';
+
+const CPU     = 'cpu';
+const MEMORY  = 'memory';
+const DISK    = 'disk';
+const TRAFFIC = 'traffic';
+
+const TOP = 'Top';
+const BOTTOM = 'Bottom';
 
 // styles contains the constant styles of the component.
 const styles = {
@@ -40,17 +50,16 @@ const styles = {
 		padding: 0,
 	},
 	doubleChartWrapper: {
-		height:     '100%',
-		width:      '99%',
-		paddingTop: 5,
+		height: '100%',
+		width:  '99%',
 	},
 };
 
 // themeStyles returns the styles generated from the theme for the component.
 const themeStyles: Object = (theme: Object) => ({
 	footer: {
-		backgroundColor: theme.palette.background.appBar,
-		color:           theme.palette.getContrastText(theme.palette.background.appBar),
+		backgroundColor: theme.palette.grey[900],
+		color:           theme.palette.getContrastText(theme.palette.grey[900]),
 		zIndex:          theme.zIndex.appBar,
 		height:          theme.spacing.unit * 10,
 	},
@@ -59,111 +68,108 @@ const themeStyles: Object = (theme: Object) => ({
 export type Props = {
 	classes: Object, // injected by withStyles()
 	theme: Object,
-	content: Content,
+	general: General,
+	system: System,
 	shouldUpdate: Object,
 };
 
 // Footer renders the footer of the dashboard.
 class Footer extends Component<Props> {
 	shouldComponentUpdate(nextProps) {
-		return typeof nextProps.shouldUpdate.home !== 'undefined';
+		return typeof nextProps.shouldUpdate.general !== 'undefined' || typeof nextProps.shouldUpdate.system !== 'undefined';
 	}
 
-	// info renders a label with the given values.
-	info = (about: string, value: ?string) => (value ? (
-		<Typography type='caption' color='inherit'>
-			<span style={commonStyles.light}>{about}</span> {value}
-		</Typography>
-	) : null);
+	// halfHeightChart renders an area chart with half of the height of its parent.
+	halfHeightChart = (chartProps, tooltip, areaProps) => (
+		<ResponsiveContainer width='100%' height='50%'>
+			<AreaChart {...chartProps} >
+				{!tooltip || (<Tooltip cursor={false} content={<CustomTooltip tooltip={tooltip} />} />)}
+				<Area isAnimationActive={false} type='monotone' {...areaProps} />
+			</AreaChart>
+		</ResponsiveContainer>
+	);
 
 	// doubleChart renders a pair of charts separated by the baseline.
-	doubleChart = (syncId, topChart, bottomChart) => {
-		const topKey = 'topKey';
-		const bottomKey = 'bottomKey';
-		const topDefault = topChart.default ? topChart.default : 0;
-		const bottomDefault = bottomChart.default ? bottomChart.default : 0;
-		const topTooltip = topChart.tooltip ? (
-			<Tooltip cursor={false} content={<CustomTooltip tooltip={topChart.tooltip} />} />
-		) : null;
-		const bottomTooltip = bottomChart.tooltip ? (
-			<Tooltip cursor={false} content={<CustomTooltip tooltip={bottomChart.tooltip} />} />
-		) : null;
+	doubleChart = (syncId, chartKey, topChart, bottomChart) => {
+		if (!Array.isArray(topChart.data) || !Array.isArray(bottomChart.data)) {
+			return null;
+		}
+		const topDefault = topChart.default || 0;
+		const bottomDefault = bottomChart.default || 0;
+		const topKey = `${chartKey}${TOP}`;
+		const bottomKey = `${chartKey}${BOTTOM}`;
 		const topColor = '#8884d8';
 		const bottomColor = '#82ca9d';
 
-		// Put the samples of the two charts into the same array in order to avoid problems
-		// at the synchronized area charts. If one of the two arrays doesn't have value at
-		// a given position, give it a 0 default value.
-		let data = [...topChart.data.map(({value}) => {
-			const d = {};
-			d[topKey] = value || topDefault;
-			return d;
-		})];
-		for (let i = 0; i < data.length && i < bottomChart.data.length; i++) {
-			// The value needs to be negative in order to plot it upside down.
-			const d = bottomChart.data[i];
-			data[i][bottomKey] = d && d.value ? -d.value : bottomDefault;
-		}
-		data = [...data, ...bottomChart.data.slice(data.length).map(({value}) => {
-			const d = {};
-			d[topKey] = topDefault;
-			d[bottomKey] = -value || bottomDefault;
-			return d;
-		})];
-
 		return (
 			<div style={styles.doubleChartWrapper}>
-				<ResponsiveContainer width='100%' height='50%'>
-					<AreaChart data={data} syncId={syncId} >
-						{topTooltip}
-						<Area type='monotone' dataKey={topKey} stroke={topColor} fill={topColor} />
-					</AreaChart>
-				</ResponsiveContainer>
-				<div style={{marginTop: -10, width: '100%', height: '50%'}}>
-					<ResponsiveContainer width='100%' height='100%'>
-						<AreaChart data={data} syncId={syncId} >
-							{bottomTooltip}
-							<Area type='monotone' dataKey={bottomKey} stroke={bottomColor} fill={bottomColor} />
-						</AreaChart>
-					</ResponsiveContainer>
-				</div>
+				{this.halfHeightChart(
+					{
+						syncId,
+						data:   topChart.data.map(({value}) => ({[topKey]: value || topDefault})),
+						margin: {top: 5, right: 5, bottom: 0, left: 5},
+					},
+					topChart.tooltip,
+					{dataKey: topKey, stroke: topColor, fill: topColor},
+				)}
+				{this.halfHeightChart(
+					{
+						syncId,
+						data:   bottomChart.data.map(({value}) => ({[bottomKey]: -value || -bottomDefault})),
+						margin: {top: 0, right: 5, bottom: 5, left: 5},
+					},
+					bottomChart.tooltip,
+					{dataKey: bottomKey, stroke: bottomColor, fill: bottomColor},
+				)}
 			</div>
 		);
-	}
+	};
 
 	render() {
-		const {content} = this.props;
-		const {general, home} = content;
+		const {general, system} = this.props;
 
 		return (
 			<Grid container className={this.props.classes.footer} direction='row' alignItems='center' style={styles.footer}>
 				<Grid item xs style={styles.chartRowWrapper}>
 					<ChartRow>
 						{this.doubleChart(
-							'all',
-							{data: home.processCPU, tooltip: percentPlotter('Process')},
-							{data: home.systemCPU, tooltip: percentPlotter('System', multiplier(-1))},
+							FOOTER_SYNC_ID,
+							CPU,
+							{data: system.processCPU, tooltip: percentPlotter('Process load')},
+							{data: system.systemCPU, tooltip: percentPlotter('System load', multiplier(-1))},
 						)}
 						{this.doubleChart(
-							'all',
-							{data: home.activeMemory, tooltip: bytePlotter('Active')},
-							{data: home.virtualMemory, tooltip: bytePlotter('Virtual', multiplier(-1))},
+							FOOTER_SYNC_ID,
+							MEMORY,
+							{data: system.activeMemory, tooltip: bytePlotter('Active memory')},
+							{data: system.virtualMemory, tooltip: bytePlotter('Virtual memory', multiplier(-1))},
 						)}
 						{this.doubleChart(
-							'all',
-							{data: home.diskRead, tooltip: bytePerSecPlotter('Disk Read')},
-							{data: home.diskWrite, tooltip: bytePerSecPlotter('Disk Write', multiplier(-1))},
+							FOOTER_SYNC_ID,
+							DISK,
+							{data: system.diskRead, tooltip: bytePerSecPlotter('Disk read')},
+							{data: system.diskWrite, tooltip: bytePerSecPlotter('Disk write', multiplier(-1))},
 						)}
 						{this.doubleChart(
-							'all',
-							{data: home.networkIngress, tooltip: bytePerSecPlotter('Download')},
-							{data: home.networkEgress, tooltip: bytePerSecPlotter('Upload', multiplier(-1))},
+							FOOTER_SYNC_ID,
+							TRAFFIC,
+							{data: system.networkIngress, tooltip: bytePerSecPlotter('Download')},
+							{data: system.networkEgress, tooltip: bytePerSecPlotter('Upload', multiplier(-1))},
 						)}
 					</ChartRow>
 				</Grid>
 				<Grid item >
-					{this.info('Geth', general.version)}
-					{this.info('Commit', general.commit ? general.commit.substring(0, 7) : null)}
+					<Typography type='caption' color='inherit'>
+						<span style={commonStyles.light}>Geth</span> {general.version}
+					</Typography>
+					{general.commit && (
+						<Typography type='caption' color='inherit'>
+							<span style={commonStyles.light}>{'Commit '}</span>
+							<a href={`https://github.com/ethereum/go-ethereum/commit/${general.commit}`} target='_blank' style={{color: 'inherit', textDecoration: 'none'}} >
+								{general.commit.substring(0, 8)}
+							</a>
+						</Typography>
+					)}
 				</Grid>
 			</Grid>
 		);

dashboard/assets/components/Header.jsx

@@ -21,30 +21,16 @@ import React, {Component} from 'react';
 import withStyles from 'material-ui/styles/withStyles';
 import AppBar from 'material-ui/AppBar';
 import Toolbar from 'material-ui/Toolbar';
-import Transition from 'react-transition-group/Transition';
 import IconButton from 'material-ui/IconButton';
+import Icon from 'material-ui/Icon';
+import MenuIcon from 'material-ui-icons/Menu';
 import Typography from 'material-ui/Typography';
-import ChevronLeftIcon from 'material-ui-icons/ChevronLeft';
-
-import {DURATION} from '../common';
-
-// styles contains the constant styles of the component.
-const styles = {
-	arrow: {
-		default: {
-			transition: `transform ${DURATION}ms`,
-		},
-		transition: {
-			entered: {transform: 'rotate(180deg)'},
-		},
-	},
-};
 
 // themeStyles returns the styles generated from the theme for the component.
 const themeStyles = (theme: Object) => ({
 	header: {
-		backgroundColor: theme.palette.background.appBar,
-		color:           theme.palette.getContrastText(theme.palette.background.appBar),
+		backgroundColor: theme.palette.grey[900],
+		color:           theme.palette.getContrastText(theme.palette.grey[900]),
 		zIndex:          theme.zIndex.appBar,
 	},
 	toolbar: {
@@ -53,42 +39,28 @@ const themeStyles = (theme: Object) => ({
 	},
 	title: {
 		paddingLeft: theme.spacing.unit,
+		fontSize:    3 * theme.spacing.unit,
 	},
 });
 
 export type Props = {
 	classes: Object, // injected by withStyles()
-	opened: boolean,
 	switchSideBar: () => void,
 };
 
 // Header renders the header of the dashboard.
 class Header extends Component<Props> {
-	shouldComponentUpdate(nextProps) {
-		return nextProps.opened !== this.props.opened;
-	}
-
-	// arrow renders a button, which changes the sidebar's state.
-	arrow = (transitionState: string) => (
-		<IconButton onClick={this.props.switchSideBar}>
-			<ChevronLeftIcon
-				style={{
-					...styles.arrow.default,
-					...styles.arrow.transition[transitionState],
-				}}
-			/>
-		</IconButton>
-	);
-
 	render() {
-		const {classes, opened} = this.props;
+		const {classes} = this.props;
 
 		return (
 			<AppBar position='static' className={classes.header}>
 				<Toolbar className={classes.toolbar}>
-					<Transition mountOnEnter in={opened} timeout={{enter: DURATION}}>
-						{this.arrow}
-					</Transition>
+					<IconButton onClick={this.props.switchSideBar}>
+						<Icon>
+							<MenuIcon />
+						</Icon>
+					</IconButton>
 					<Typography type='title' color='inherit' noWrap className={classes.title}>
 						Go Ethereum Dashboard
 					</Typography>

dashboard/assets/components/Main.jsx

@@ -76,7 +76,8 @@ class Main extends Component<Props> {
 			<div style={styles.wrapper}>
 				<div className={classes.content} style={styles.content}>{children}</div>
 				<Footer
-					content={content}
+					general={content.general}
+					system={content.system}
 					shouldUpdate={shouldUpdate}
 				/>
 			</div>

dashboard/assets/components/SideBar.jsx

@@ -41,10 +41,10 @@ const styles = {
 // themeStyles returns the styles generated from the theme for the component.
 const themeStyles = theme => ({
 	list: {
-		background: theme.palette.background.appBar,
+		background: theme.palette.grey[900],
 	},
 	listItem: {
-		minWidth: theme.spacing.unit * 3,
+		minWidth: theme.spacing.unit * 7,
 	},
 	icon: {
 		fontSize: theme.spacing.unit * 3,

dashboard/assets/package.json

@@ -15,11 +15,11 @@
         "css-loader": "^0.28.9",
         "eslint": "^4.16.0",
         "eslint-config-airbnb": "^16.1.0",
-        "eslint-loader": "^1.9.0",
+        "eslint-loader": "^2.0.0",
+        "eslint-plugin-flowtype": "^2.41.0",
         "eslint-plugin-import": "^2.8.0",
         "eslint-plugin-jsx-a11y": "^6.0.3",
         "eslint-plugin-react": "^7.5.1",
-        "eslint-plugin-flowtype": "^2.41.0",
         "file-loader": "^1.1.6",
         "flow-bin": "^0.63.1",
         "flow-bin-loader": "^1.0.2",
@@ -35,6 +35,13 @@
         "style-loader": "^0.19.1",
         "url": "^0.11.0",
         "url-loader": "^0.6.2",
-        "webpack": "^3.10.0"
+        "webpack": "^3.10.0",
+        "webpack-dev-server": "^2.11.1"
+    },
+    "scripts": {
+        "build": "NODE_ENV=production webpack",
+        "stats": "webpack --profile --json > stats.json",
+        "dev":   "webpack-dev-server --port 8081",
+        "flow":  "flow-typed install"
     }
 }

dashboard/assets/types/content.jsx

@@ -26,22 +26,6 @@ export type Content = {
 	logs: Logs,
 };
 
-export type General = {
-	version: ?string,
-	commit: ?string,
-};
-
-export type Home = {
-	activeMemory: ChartEntries,
-	virtualMemory: ChartEntries,
-	networkIngress: ChartEntries,
-	networkEgress: ChartEntries,
-	processCPU: ChartEntries,
-	systemCPU: ChartEntries,
-	diskRead: ChartEntries,
-	diskWrite: ChartEntries,
-};
-
 export type ChartEntries = Array<ChartEntry>;
 
 export type ChartEntry = {
@@ -49,6 +33,15 @@ export type ChartEntry = {
 	value: number,
 };
 
+export type General = {
+    version: ?string,
+    commit: ?string,
+};
+
+export type Home = {
+	/* TODO (kurkomisi) */
+};
+
 export type Chain = {
 	/* TODO (kurkomisi) */
 };
@@ -62,7 +55,14 @@ export type Network = {
 };
 
 export type System = {
-	/* TODO (kurkomisi) */
+    activeMemory: ChartEntries,
+    virtualMemory: ChartEntries,
+    networkIngress: ChartEntries,
+    networkEgress: ChartEntries,
+    processCPU: ChartEntries,
+    systemCPU: ChartEntries,
+    diskRead: ChartEntries,
+    diskWrite: ChartEntries,
 };
 
 export type Logs = {

dashboard/assets/webpack.config.js

@@ -32,6 +32,9 @@ module.exports = {
 			mangle:   false,
 			beautify: true,
 		}),
+		new webpack.DefinePlugin({
+			PROD: process.env.NODE_ENV === 'production',
+		}),
 	],
 	module: {
 		rules: [

dashboard/config.go

@@ -38,8 +38,4 @@ type Config struct {
 
 	// Refresh is the refresh rate of the data updates, the chartEntry will be collected this often.
 	Refresh time.Duration `toml:",omitempty"`
-
-	// Assets offers a possibility to manually set the dashboard website's location on the server side.
-	// It is useful for debugging, avoids the repeated generation of the binary.
-	Assets string `toml:",omitempty"`
 }

dashboard/dashboard.go

@@ -16,19 +16,17 @@
 
 package dashboard
 
-//go:generate npm --prefix ./assets install
-//go:generate ./assets/node_modules/.bin/webpack --config ./assets/webpack.config.js --context ./assets
-//go:generate go-bindata -nometadata -o assets.go -prefix assets -nocompress -pkg dashboard assets/dashboard.html assets/bundle.js
+//go:generate yarn --cwd ./assets install
+//go:generate yarn --cwd ./assets build
+//go:generate go-bindata -nometadata -o assets.go -prefix assets -nocompress -pkg dashboard assets/index.html assets/bundle.js
 //go:generate sh -c "sed 's#var _bundleJs#//nolint:misspell\\\n&#' assets.go > assets.go.tmp && mv assets.go.tmp assets.go"
-//go:generate sh -c "sed 's#var _dashboardHtml#//nolint:misspell\\\n&#' assets.go > assets.go.tmp && mv assets.go.tmp assets.go"
+//go:generate sh -c "sed 's#var _indexHtml#//nolint:misspell\\\n&#' assets.go > assets.go.tmp && mv assets.go.tmp assets.go"
 //go:generate gofmt -w -s assets.go
 
 import (
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/http"
-	"path/filepath"
 	"runtime"
 	"sync"
 	"sync/atomic"
@@ -62,7 +60,7 @@ type Dashboard struct {
 
 	listener net.Listener
 	conns    map[uint32]*client // Currently live websocket connections
-	charts   *HomeMessage
+	charts   *SystemMessage
 	commit   string
 	lock     sync.RWMutex // Lock protecting the dashboard's internals
 
@@ -84,7 +82,7 @@ func New(config *Config, commit string) (*Dashboard, error) {
 		conns:  make(map[uint32]*client),
 		config: config,
 		quit:   make(chan chan error),
-		charts: &HomeMessage{
+		charts: &SystemMessage{
 			ActiveMemory:   emptyChartEntries(now, activeMemorySampleLimit, config.Refresh),
 			VirtualMemory:  emptyChartEntries(now, virtualMemorySampleLimit, config.Refresh),
 			NetworkIngress: emptyChartEntries(now, networkIngressSampleLimit, config.Refresh),
@@ -180,18 +178,7 @@ func (db *Dashboard) webHandler(w http.ResponseWriter, r *http.Request) {
 
 	path := r.URL.String()
 	if path == "/" {
-		path = "/dashboard.html"
-	}
-	// If the path of the assets is manually set
-	if db.config.Assets != "" {
-		blob, err := ioutil.ReadFile(filepath.Join(db.config.Assets, path))
-		if err != nil {
-			log.Warn("Failed to read file", "path", path, "err", err)
-			http.Error(w, "not found", http.StatusNotFound)
-			return
-		}
-		w.Write(blob)
-		return
+		path = "/index.html"
 	}
 	blob, err := Asset(path[1:])
 	if err != nil {
@@ -241,7 +228,7 @@ func (db *Dashboard) apiHandler(conn *websocket.Conn) {
 			Version: fmt.Sprintf("v%d.%d.%d%s", params.VersionMajor, params.VersionMinor, params.VersionPatch, versionMeta),
 			Commit:  db.commit,
 		},
-		Home: &HomeMessage{
+		System: &SystemMessage{
 			ActiveMemory:   db.charts.ActiveMemory,
 			VirtualMemory:  db.charts.VirtualMemory,
 			NetworkIngress: db.charts.NetworkIngress,
@@ -277,12 +264,14 @@ func (db *Dashboard) collectData() {
 	systemCPUUsage := gosigar.Cpu{}
 	systemCPUUsage.Get()
 	var (
+		mem runtime.MemStats
+
 		prevNetworkIngress = metrics.DefaultRegistry.Get("p2p/InboundTraffic").(metrics.Meter).Count()
 		prevNetworkEgress  = metrics.DefaultRegistry.Get("p2p/OutboundTraffic").(metrics.Meter).Count()
 		prevProcessCPUTime = getProcessCPUTime()
 		prevSystemCPUUsage = systemCPUUsage
-		prevDiskRead       = metrics.DefaultRegistry.Get("eth/db/chaindata/compact/input").(metrics.Meter).Count()
-		prevDiskWrite      = metrics.DefaultRegistry.Get("eth/db/chaindata/compact/output").(metrics.Meter).Count()
+		prevDiskRead       = metrics.DefaultRegistry.Get("eth/db/chaindata/disk/read").(metrics.Meter).Count()
+		prevDiskWrite      = metrics.DefaultRegistry.Get("eth/db/chaindata/disk/write").(metrics.Meter).Count()
 
 		frequency = float64(db.config.Refresh / time.Second)
 		numCPU    = float64(runtime.NumCPU())
@@ -300,13 +289,13 @@ func (db *Dashboard) collectData() {
 				curNetworkEgress  = metrics.DefaultRegistry.Get("p2p/OutboundTraffic").(metrics.Meter).Count()
 				curProcessCPUTime = getProcessCPUTime()
 				curSystemCPUUsage = systemCPUUsage
-				curDiskRead       = metrics.DefaultRegistry.Get("eth/db/chaindata/compact/input").(metrics.Meter).Count()
-				curDiskWrite      = metrics.DefaultRegistry.Get("eth/db/chaindata/compact/output").(metrics.Meter).Count()
+				curDiskRead       = metrics.DefaultRegistry.Get("eth/db/chaindata/disk/read").(metrics.Meter).Count()
+				curDiskWrite      = metrics.DefaultRegistry.Get("eth/db/chaindata/disk/write").(metrics.Meter).Count()
 
 				deltaNetworkIngress = float64(curNetworkIngress - prevNetworkIngress)
 				deltaNetworkEgress  = float64(curNetworkEgress - prevNetworkEgress)
 				deltaProcessCPUTime = curProcessCPUTime - prevProcessCPUTime
-				deltaSystemCPUUsage = systemCPUUsage.Delta(prevSystemCPUUsage)
+				deltaSystemCPUUsage = curSystemCPUUsage.Delta(prevSystemCPUUsage)
 				deltaDiskRead       = curDiskRead - prevDiskRead
 				deltaDiskWrite      = curDiskWrite - prevDiskWrite
 			)
@@ -319,7 +308,6 @@ func (db *Dashboard) collectData() {
 
 			now := time.Now()
 
-			var mem runtime.MemStats
 			runtime.ReadMemStats(&mem)
 			activeMemory := &ChartEntry{
 				Time:  now,
@@ -363,7 +351,7 @@ func (db *Dashboard) collectData() {
 			db.charts.DiskWrite = append(db.charts.DiskRead[1:], diskWrite)
 
 			db.sendToAll(&Message{
-				Home: &HomeMessage{
+				System: &SystemMessage{
 					ActiveMemory:   ChartEntries{activeMemory},
 					VirtualMemory:  ChartEntries{virtualMemory},
 					NetworkIngress: ChartEntries{networkIngress},

dashboard/message.go

@@ -28,27 +28,20 @@ type Message struct {
 	Logs    *LogsMessage    `json:"logs,omitempty"`
 }
 
+type ChartEntries []*ChartEntry
+
+type ChartEntry struct {
+	Time  time.Time `json:"time,omitempty"`
+	Value float64   `json:"value,omitempty"`
+}
+
 type GeneralMessage struct {
 	Version string `json:"version,omitempty"`
 	Commit  string `json:"commit,omitempty"`
 }
 
 type HomeMessage struct {
-	ActiveMemory   ChartEntries `json:"activeMemory,omitempty"`
-	VirtualMemory  ChartEntries `json:"virtualMemory,omitempty"`
-	NetworkIngress ChartEntries `json:"networkIngress,omitempty"`
-	NetworkEgress  ChartEntries `json:"networkEgress,omitempty"`
-	ProcessCPU     ChartEntries `json:"processCPU,omitempty"`
-	SystemCPU      ChartEntries `json:"systemCPU,omitempty"`
-	DiskRead       ChartEntries `json:"diskRead,omitempty"`
-	DiskWrite      ChartEntries `json:"diskWrite,omitempty"`
-}
-
-type ChartEntries []*ChartEntry
-
-type ChartEntry struct {
-	Time  time.Time `json:"time,omitempty"`
-	Value float64   `json:"value,omitempty"`
+	/* TODO (kurkomisi) */
 }
 
 type ChainMessage struct {
@@ -64,7 +57,14 @@ type NetworkMessage struct {
 }
 
 type SystemMessage struct {
-	/* TODO (kurkomisi) */
+	ActiveMemory   ChartEntries `json:"activeMemory,omitempty"`
+	VirtualMemory  ChartEntries `json:"virtualMemory,omitempty"`
+	NetworkIngress ChartEntries `json:"networkIngress,omitempty"`
+	NetworkEgress  ChartEntries `json:"networkEgress,omitempty"`
+	ProcessCPU     ChartEntries `json:"processCPU,omitempty"`
+	SystemCPU      ChartEntries `json:"systemCPU,omitempty"`
+	DiskRead       ChartEntries `json:"diskRead,omitempty"`
+	DiskWrite      ChartEntries `json:"diskWrite,omitempty"`
 }
 
 type LogsMessage struct {

eth/downloader/downloader.go

@@ -1296,6 +1296,14 @@ func (d *Downloader) processHeaders(origin uint64, pivot uint64, td *big.Int) er
 				headers = headers[limit:]
 				origin += uint64(limit)
 			}
+
+			// Update the highest block number we know if a higher one is found.
+			d.syncStatsLock.Lock()
+			if d.syncStatsChainHeight < origin {
+				d.syncStatsChainHeight = origin - 1
+			}
+			d.syncStatsLock.Unlock()
+
 			// Signal the content downloaders of the availablility of new tasks
 			for _, ch := range []chan bool{d.bodyWakeCh, d.receiptWakeCh} {
 				select {

eth/fetcher/fetcher.go

@@ -633,7 +633,7 @@ func (f *Fetcher) enqueue(peer string, block *types.Block) {
 }
 
 // insert spawns a new goroutine to run a block insertion into the chain. If the
-// block's number is at the same height as the current import phase, if updates
+// block's number is at the same height as the current import phase, it updates
 // the phase states accordingly.
 func (f *Fetcher) insert(peer string, block *types.Block) {
 	hash := block.Hash()

eth/sync.go

@@ -188,6 +188,14 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
 		atomic.StoreUint32(&pm.fastSync, 1)
 		mode = downloader.FastSync
 	}
+
+	if mode == downloader.FastSync {
+		// Make sure the peer's total difficulty we are synchronizing is higher.
+		if pm.blockchain.GetTdByHash(pm.blockchain.CurrentFastBlock().Hash()).Cmp(pTd) >= 0 {
+			return
+		}
+	}
+
 	// Run the sync cycle, and disable fast sync if we've went past the pivot block
 	if err := pm.downloader.Synchronise(peer.id, pHead, pTd, mode); err != nil {
 		return

ethdb/database.go

@@ -29,6 +29,7 @@ import (
 	"github.com/syndtr/goleveldb/leveldb/filter"
 	"github.com/syndtr/goleveldb/leveldb/iterator"
 	"github.com/syndtr/goleveldb/leveldb/opt"
+	"github.com/syndtr/goleveldb/leveldb/util"
 )
 
 var OpenFileLimit = 64
@@ -37,15 +38,11 @@ type LDBDatabase struct {
 	fn string      // filename for reporting
 	db *leveldb.DB // LevelDB instance
 
-	getTimer       metrics.Timer // Timer for measuring the database get request counts and latencies
-	putTimer       metrics.Timer // Timer for measuring the database put request counts and latencies
-	delTimer       metrics.Timer // Timer for measuring the database delete request counts and latencies
-	missMeter      metrics.Meter // Meter for measuring the missed database get requests
-	readMeter      metrics.Meter // Meter for measuring the database get request data usage
-	writeMeter     metrics.Meter // Meter for measuring the database put request data usage
 	compTimeMeter  metrics.Meter // Meter for measuring the total time spent in database compaction
 	compReadMeter  metrics.Meter // Meter for measuring the data read during compaction
 	compWriteMeter metrics.Meter // Meter for measuring the data written during compaction
+	diskReadMeter  metrics.Meter // Meter for measuring the effective amount of data read
+	diskWriteMeter metrics.Meter // Meter for measuring the effective amount of data written
 
 	quitLock sync.Mutex      // Mutex protecting the quit channel access
 	quitChan chan chan error // Quit channel to stop the metrics collection before closing the database
@@ -94,16 +91,9 @@ func (db *LDBDatabase) Path() string {
 
 // Put puts the given key / value to the queue
 func (db *LDBDatabase) Put(key []byte, value []byte) error {
-	// Measure the database put latency, if requested
-	if db.putTimer != nil {
-		defer db.putTimer.UpdateSince(time.Now())
-	}
 	// Generate the data to write to disk, update the meter and write
 	//value = rle.Compress(value)
 
-	if db.writeMeter != nil {
-		db.writeMeter.Mark(int64(len(value)))
-	}
 	return db.db.Put(key, value, nil)
 }
 
@@ -113,32 +103,17 @@ func (db *LDBDatabase) Has(key []byte) (bool, error) {
 
 // Get returns the given key if it's present.
 func (db *LDBDatabase) Get(key []byte) ([]byte, error) {
-	// Measure the database get latency, if requested
-	if db.getTimer != nil {
-		defer db.getTimer.UpdateSince(time.Now())
-	}
 	// Retrieve the key and increment the miss counter if not found
 	dat, err := db.db.Get(key, nil)
 	if err != nil {
-		if db.missMeter != nil {
-			db.missMeter.Mark(1)
-		}
 		return nil, err
 	}
-	// Otherwise update the actually retrieved amount of data
-	if db.readMeter != nil {
-		db.readMeter.Mark(int64(len(dat)))
-	}
 	return dat, nil
 	//return rle.Decompress(dat)
 }
 
 // Delete deletes the key from the queue and database
 func (db *LDBDatabase) Delete(key []byte) error {
-	// Measure the database delete latency, if requested
-	if db.delTimer != nil {
-		defer db.delTimer.UpdateSince(time.Now())
-	}
 	// Execute the actual operation
 	return db.db.Delete(key, nil)
 }
@@ -147,6 +122,11 @@ func (db *LDBDatabase) NewIterator() iterator.Iterator {
 	return db.db.NewIterator(nil, nil)
 }
 
+// NewIteratorWithPrefix returns a iterator to iterate over subset of database content with a particular prefix.
+func (db *LDBDatabase) NewIteratorWithPrefix(prefix []byte) iterator.Iterator {
+	return db.db.NewIterator(util.BytesPrefix(prefix), nil)
+}
+
 func (db *LDBDatabase) Close() {
 	// Stop the metrics collection to avoid internal database races
 	db.quitLock.Lock()
@@ -178,15 +158,11 @@ func (db *LDBDatabase) Meter(prefix string) {
 		return
 	}
 	// Initialize all the metrics collector at the requested prefix
-	db.getTimer = metrics.NewRegisteredTimer(prefix+"user/gets", nil)
-	db.putTimer = metrics.NewRegisteredTimer(prefix+"user/puts", nil)
-	db.delTimer = metrics.NewRegisteredTimer(prefix+"user/dels", nil)
-	db.missMeter = metrics.NewRegisteredMeter(prefix+"user/misses", nil)
-	db.readMeter = metrics.NewRegisteredMeter(prefix+"user/reads", nil)
-	db.writeMeter = metrics.NewRegisteredMeter(prefix+"user/writes", nil)
 	db.compTimeMeter = metrics.NewRegisteredMeter(prefix+"compact/time", nil)
 	db.compReadMeter = metrics.NewRegisteredMeter(prefix+"compact/input", nil)
 	db.compWriteMeter = metrics.NewRegisteredMeter(prefix+"compact/output", nil)
+	db.diskReadMeter = metrics.NewRegisteredMeter(prefix+"disk/read", nil)
+	db.diskWriteMeter = metrics.NewRegisteredMeter(prefix+"disk/write", nil)
 
 	// Create a quit channel for the periodic collector and run it
 	db.quitLock.Lock()
@@ -207,12 +183,17 @@ func (db *LDBDatabase) Meter(prefix string) {
 //      1   |         85 |     109.27913 |      28.09293 |     213.92493 |     214.26294
 //      2   |        523 |    1000.37159 |       7.26059 |      66.86342 |      66.77884
 //      3   |        570 |    1113.18458 |       0.00000 |       0.00000 |       0.00000
+//
+// This is how the iostats look like (currently):
+// Read(MB):3895.04860 Write(MB):3654.64712
 func (db *LDBDatabase) meter(refresh time.Duration) {
-	// Create the counters to store current and previous values
-	counters := make([][]float64, 2)
+	// Create the counters to store current and previous compaction values
+	compactions := make([][]float64, 2)
 	for i := 0; i < 2; i++ {
-		counters[i] = make([]float64, 3)
+		compactions[i] = make([]float64, 3)
 	}
+	// Create storage for iostats.
+	var iostats [2]float64
 	// Iterate ad infinitum and collect the stats
 	for i := 1; ; i++ {
 		// Retrieve the database stats
@@ -233,8 +214,8 @@ func (db *LDBDatabase) meter(refresh time.Duration) {
 		lines = lines[3:]
 
 		// Iterate over all the table rows, and accumulate the entries
-		for j := 0; j < len(counters[i%2]); j++ {
-			counters[i%2][j] = 0
+		for j := 0; j < len(compactions[i%2]); j++ {
+			compactions[i%2][j] = 0
 		}
 		for _, line := range lines {
 			parts := strings.Split(line, "|")
@@ -247,19 +228,60 @@ func (db *LDBDatabase) meter(refresh time.Duration) {
 					db.log.Error("Compaction entry parsing failed", "err", err)
 					return
 				}
-				counters[i%2][idx] += value
+				compactions[i%2][idx] += value
 			}
 		}
 		// Update all the requested meters
 		if db.compTimeMeter != nil {
-			db.compTimeMeter.Mark(int64((counters[i%2][0] - counters[(i-1)%2][0]) * 1000 * 1000 * 1000))
+			db.compTimeMeter.Mark(int64((compactions[i%2][0] - compactions[(i-1)%2][0]) * 1000 * 1000 * 1000))
 		}
 		if db.compReadMeter != nil {
-			db.compReadMeter.Mark(int64((counters[i%2][1] - counters[(i-1)%2][1]) * 1024 * 1024))
+			db.compReadMeter.Mark(int64((compactions[i%2][1] - compactions[(i-1)%2][1]) * 1024 * 1024))
 		}
 		if db.compWriteMeter != nil {
-			db.compWriteMeter.Mark(int64((counters[i%2][2] - counters[(i-1)%2][2]) * 1024 * 1024))
+			db.compWriteMeter.Mark(int64((compactions[i%2][2] - compactions[(i-1)%2][2]) * 1024 * 1024))
 		}
+
+		// Retrieve the database iostats.
+		ioStats, err := db.db.GetProperty("leveldb.iostats")
+		if err != nil {
+			db.log.Error("Failed to read database iostats", "err", err)
+			return
+		}
+		parts := strings.Split(ioStats, " ")
+		if len(parts) < 2 {
+			db.log.Error("Bad syntax of ioStats", "ioStats", ioStats)
+			return
+		}
+		r := strings.Split(parts[0], ":")
+		if len(r) < 2 {
+			db.log.Error("Bad syntax of read entry", "entry", parts[0])
+			return
+		}
+		read, err := strconv.ParseFloat(r[1], 64)
+		if err != nil {
+			db.log.Error("Read entry parsing failed", "err", err)
+			return
+		}
+		w := strings.Split(parts[1], ":")
+		if len(w) < 2 {
+			db.log.Error("Bad syntax of write entry", "entry", parts[1])
+			return
+		}
+		write, err := strconv.ParseFloat(w[1], 64)
+		if err != nil {
+			db.log.Error("Write entry parsing failed", "err", err)
+			return
+		}
+		if db.diskReadMeter != nil {
+			db.diskReadMeter.Mark(int64((read - iostats[0]) * 1024 * 1024))
+		}
+		if db.diskWriteMeter != nil {
+			db.diskWriteMeter.Mark(int64((write - iostats[1]) * 1024 * 1024))
+		}
+		iostats[0] = read
+		iostats[1] = write
+
 		// Sleep a bit, then repeat the stats collection
 		select {
 		case errc := <-db.quitChan:

internal/ethapi/api.go

@@ -1337,10 +1337,10 @@ func (s *PublicTransactionPoolAPI) Resend(ctx context.Context, sendArgs SendTxAr
 
 		if pFrom, err := types.Sender(signer, p); err == nil && pFrom == sendArgs.From && signer.Hash(p) == wantSigHash {
 			// Match. Re-sign and send the transaction.
-			if gasPrice != nil {
+			if gasPrice != nil && (*big.Int)(gasPrice).Sign() != 0 {
 				sendArgs.GasPrice = gasPrice
 			}
-			if gasLimit != nil {
+			if gasLimit != nil && *gasLimit != 0 {
 				sendArgs.Gas = gasLimit
 			}
 			signedTx, err := s.sign(sendArgs.From, sendArgs.toTransaction())

light/odr_util.go

@@ -144,7 +144,9 @@ func GetBlockReceipts(ctx context.Context, odr OdrBackend, hash common.Hash, num
 		genesis := core.GetCanonicalHash(odr.Database(), 0)
 		config, _ := core.GetChainConfig(odr.Database(), genesis)
 
-		core.SetReceiptsData(config, block, receipts)
+		if err := core.SetReceiptsData(config, block, receipts); err != nil {
+			return nil, err
+		}
 		core.WriteBlockReceipts(odr.Database(), hash, number, receipts)
 	}
 	return receipts, nil

light/postprocess.go

@@ -58,10 +58,10 @@ type trustedCheckpoint struct {
 var (
 	mainnetCheckpoint = trustedCheckpoint{
 		name:          "mainnet",
-		sectionIdx:    157,
-		sectionHead:   common.HexToHash("1963c080887ca7f406c2bb114293eea83e54f783f94df24b447f7e3b6317c747"),
-		chtRoot:       common.HexToHash("42abc436567dfb678a38fa6a9f881aa4c8a4cc8eaa2def08359292c3d0bd48ec"),
-		bloomTrieRoot: common.HexToHash("281c9f8fb3cb8b37ae45e9907ef8f3b19cd22c54e297c2d6c09c1db1593dce42"),
+		sectionIdx:    161,
+		sectionHead:   common.HexToHash("75b0c4baa7a62cece48abdcb03b6f31601961c9bece67dcd61df87aad4fc0d8d"),
+		chtRoot:       common.HexToHash("bbbfaa67b29716348997ec21a39c03b8d1fb973f6a43740b865595ba26ee812f"),
+		bloomTrieRoot: common.HexToHash("d6db6e6248354d7453391ce97830072a28ea4216be0bd95a5db9f53b1a64677b"),
 	}
 
 	ropstenCheckpoint = trustedCheckpoint{

miner/miner.go

@@ -105,8 +105,7 @@ out:
 
 func (self *Miner) Start(coinbase common.Address) {
 	atomic.StoreInt32(&self.shouldStart, 1)
-	self.worker.setEtherbase(coinbase)
-	self.coinbase = coinbase
+	self.SetEtherbase(coinbase)
 
 	if atomic.LoadInt32(&self.canStart) == 0 {
 		log.Info("Network syncing, will start miner afterwards")

mobile/geth.go

@@ -34,7 +34,7 @@ import (
 	"github.com/ethereum/go-ethereum/p2p"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/params"
-	whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
+	whisper "github.com/ethereum/go-ethereum/whisper/whisperv6"
 )
 
 // NodeConfig represents the collection of configuration values to fine tune the Geth

p2p/rlpx.go

@@ -491,7 +491,7 @@ func readHandshakeMsg(msg plainDecoder, plainSize int, prv *ecdsa.PrivateKey, r
 	}
 	// Attempt decoding pre-EIP-8 "plain" format.
 	key := ecies.ImportECDSA(prv)
-	if dec, err := key.Decrypt(rand.Reader, buf, nil, nil); err == nil {
+	if dec, err := key.Decrypt(buf, nil, nil); err == nil {
 		msg.decodePlain(dec)
 		return buf, nil
 	}
@@ -505,7 +505,7 @@ func readHandshakeMsg(msg plainDecoder, plainSize int, prv *ecdsa.PrivateKey, r
 	if _, err := io.ReadFull(r, buf[plainSize:]); err != nil {
 		return buf, err
 	}
-	dec, err := key.Decrypt(rand.Reader, buf[2:], nil, prefix)
+	dec, err := key.Decrypt(buf[2:], nil, prefix)
 	if err != nil {
 		return buf, err
 	}