Eip 1884 v3 (#19743)
* core/vm, tests: implement EIP 1884, add support for feature-tests * core/vm: 1884-changes to extcodehash, move selfbalance opcode * tests: fix statetests * core/vm: move constants, address review concerns * core/vm: word formatting Co-Authored-By: Péter Szilágyi <peterke@gmail.com>
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63
core/vm/eips.go
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63
core/vm/eips.go
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// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"fmt"
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"github.com/ethereum/go-ethereum/params"
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)
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// EnableEIP enables the given EIP on the config.
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// This operation writes in-place, and callers need to ensure that the globally
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// defined jump tables are not polluted.
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func EnableEIP(eipNum int, jt *JumpTable) error {
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switch eipNum {
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case 1884:
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enable1884(jt)
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default:
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return fmt.Errorf("undefined eip %d", eipNum)
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}
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return nil
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}
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// enable1884 applies EIP-1884 to the given jump table:
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// - Increase cost of BALANCE to 700
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// - Increase cost of EXTCODEHASH to 700
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// - Increase cost of SLOAD to 800
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// - Define SELFBALANCE, with cost GasFastStep (5)
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func enable1884(jt *JumpTable) {
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// Gas cost changes
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jt[BALANCE].constantGas = params.BalanceGasEIP1884
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jt[EXTCODEHASH].constantGas = params.ExtcodeHashGasEIP1884
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jt[SLOAD].constantGas = params.SloadGasEIP1884
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// New opcode
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jt[SELFBALANCE] = operation{
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execute: opSelfBalance,
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constantGas: GasFastStep,
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minStack: minStack(0, 1),
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maxStack: maxStack(0, 1),
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valid: true,
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}
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}
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func opSelfBalance(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
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balance := interpreter.intPool.get().Set(interpreter.evm.StateDB.GetBalance(contract.Address()))
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stack.push(balance)
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return nil, nil
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}
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@ -23,6 +23,7 @@ import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/math"
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"github.com/ethereum/go-ethereum/log"
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)
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// Config are the configuration options for the Interpreter
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@ -36,6 +37,8 @@ type Config struct {
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EWASMInterpreter string // External EWASM interpreter options
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EVMInterpreter string // External EVM interpreter options
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ExtraEips []int // Additional EIPS that are to be enabled
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}
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// Interpreter is used to run Ethereum based contracts and will utilise the
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@ -88,20 +91,29 @@ func NewEVMInterpreter(evm *EVM, cfg Config) *EVMInterpreter {
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// the jump table was initialised. If it was not
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// we'll set the default jump table.
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if !cfg.JumpTable[STOP].valid {
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var jt JumpTable
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switch {
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case evm.chainRules.IsConstantinople:
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cfg.JumpTable = constantinopleInstructionSet
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jt = constantinopleInstructionSet
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case evm.chainRules.IsByzantium:
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cfg.JumpTable = byzantiumInstructionSet
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jt = byzantiumInstructionSet
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case evm.chainRules.IsEIP158:
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cfg.JumpTable = spuriousDragonInstructionSet
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jt = spuriousDragonInstructionSet
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case evm.chainRules.IsEIP150:
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cfg.JumpTable = tangerineWhistleInstructionSet
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jt = tangerineWhistleInstructionSet
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case evm.chainRules.IsHomestead:
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cfg.JumpTable = homesteadInstructionSet
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jt = homesteadInstructionSet
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default:
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cfg.JumpTable = frontierInstructionSet
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jt = frontierInstructionSet
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}
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for i, eip := range cfg.ExtraEips {
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if err := EnableEIP(eip, &jt); err != nil {
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// Disable it, so caller can check if it's activated or not
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cfg.ExtraEips = append(cfg.ExtraEips[:i], cfg.ExtraEips[i+1:]...)
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log.Error("EIP activation failed", "eip", eip, "error", err)
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}
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}
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cfg.JumpTable = jt
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}
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return &EVMInterpreter{
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@ -62,9 +62,12 @@ var (
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constantinopleInstructionSet = newConstantinopleInstructionSet()
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)
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// JumpTable contains the EVM opcodes supported at a given fork.
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type JumpTable [256]operation
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// NewConstantinopleInstructionSet returns the frontier, homestead
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// byzantium and contantinople instructions.
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func newConstantinopleInstructionSet() [256]operation {
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func newConstantinopleInstructionSet() JumpTable {
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// instructions that can be executed during the byzantium phase.
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instructionSet := newByzantiumInstructionSet()
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instructionSet[SHL] = operation{
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@ -90,7 +93,7 @@ func newConstantinopleInstructionSet() [256]operation {
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}
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instructionSet[EXTCODEHASH] = operation{
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execute: opExtCodeHash,
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constantGas: params.ExtcodeHashGas,
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constantGas: params.ExtcodeHashGasConstantinople,
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minStack: minStack(1, 1),
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maxStack: maxStack(1, 1),
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valid: true,
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@ -111,7 +114,7 @@ func newConstantinopleInstructionSet() [256]operation {
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// NewByzantiumInstructionSet returns the frontier, homestead and
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// byzantium instructions.
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func newByzantiumInstructionSet() [256]operation {
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func newByzantiumInstructionSet() JumpTable {
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// instructions that can be executed during the homestead phase.
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instructionSet := newSpuriousDragonInstructionSet()
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instructionSet[STATICCALL] = operation{
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@ -154,7 +157,7 @@ func newByzantiumInstructionSet() [256]operation {
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}
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// EIP 158 a.k.a Spurious Dragon
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func newSpuriousDragonInstructionSet() [256]operation {
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func newSpuriousDragonInstructionSet() JumpTable {
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instructionSet := newTangerineWhistleInstructionSet()
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instructionSet[EXP].dynamicGas = gasExpEIP158
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return instructionSet
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@ -162,7 +165,7 @@ func newSpuriousDragonInstructionSet() [256]operation {
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}
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// EIP 150 a.k.a Tangerine Whistle
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func newTangerineWhistleInstructionSet() [256]operation {
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func newTangerineWhistleInstructionSet() JumpTable {
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instructionSet := newHomesteadInstructionSet()
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instructionSet[BALANCE].constantGas = params.BalanceGasEIP150
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instructionSet[EXTCODESIZE].constantGas = params.ExtcodeSizeGasEIP150
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@ -176,7 +179,7 @@ func newTangerineWhistleInstructionSet() [256]operation {
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// NewHomesteadInstructionSet returns the frontier and homestead
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// instructions that can be executed during the homestead phase.
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func newHomesteadInstructionSet() [256]operation {
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func newHomesteadInstructionSet() JumpTable {
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instructionSet := newFrontierInstructionSet()
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instructionSet[DELEGATECALL] = operation{
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execute: opDelegateCall,
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@ -193,8 +196,8 @@ func newHomesteadInstructionSet() [256]operation {
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// NewFrontierInstructionSet returns the frontier instructions
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// that can be executed during the frontier phase.
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func newFrontierInstructionSet() [256]operation {
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return [256]operation{
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func newFrontierInstructionSet() JumpTable {
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return JumpTable{
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STOP: {
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execute: opStop,
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constantGas: 0,
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@ -101,6 +101,7 @@ const (
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NUMBER
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DIFFICULTY
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GASLIMIT
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SELFBALANCE = 0x47
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)
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// 0x50 range - 'storage' and execution.
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@ -271,12 +272,13 @@ var opCodeToString = map[OpCode]string{
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EXTCODEHASH: "EXTCODEHASH",
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// 0x40 range - block operations.
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BLOCKHASH: "BLOCKHASH",
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COINBASE: "COINBASE",
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TIMESTAMP: "TIMESTAMP",
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NUMBER: "NUMBER",
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DIFFICULTY: "DIFFICULTY",
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GASLIMIT: "GASLIMIT",
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BLOCKHASH: "BLOCKHASH",
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COINBASE: "COINBASE",
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TIMESTAMP: "TIMESTAMP",
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NUMBER: "NUMBER",
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DIFFICULTY: "DIFFICULTY",
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GASLIMIT: "GASLIMIT",
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SELFBALANCE: "SELFBALANCE",
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// 0x50 range - 'storage' and execution.
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POP: "POP",
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@ -444,6 +446,7 @@ var stringToOp = map[string]OpCode{
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"NUMBER": NUMBER,
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"DIFFICULTY": DIFFICULTY,
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"GASLIMIT": GASLIMIT,
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"SELFBALANCE": SELFBALANCE,
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"POP": POP,
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"MLOAD": MLOAD,
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"MSTORE": MSTORE,
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@ -70,16 +70,19 @@ const (
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TxDataNonZeroGas uint64 = 68 // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.
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// These have been changed during the course of the chain
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CallGasFrontier uint64 = 40 // Once per CALL operation & message call transaction.
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CallGasEIP150 uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
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BalanceGasFrontier uint64 = 20 // The cost of a BALANCE operation
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BalanceGasEIP150 uint64 = 400 // The cost of a BALANCE operation after Tangerine
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ExtcodeSizeGasFrontier uint64 = 20 // Cost of EXTCODESIZE before EIP 150 (Tangerine)
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ExtcodeSizeGasEIP150 uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
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SloadGasFrontier uint64 = 50
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SloadGasEIP150 uint64 = 200
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ExtcodeHashGas uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
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SelfdestructGasEIP150 uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)
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CallGasFrontier uint64 = 40 // Once per CALL operation & message call transaction.
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CallGasEIP150 uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
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BalanceGasFrontier uint64 = 20 // The cost of a BALANCE operation
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BalanceGasEIP150 uint64 = 400 // The cost of a BALANCE operation after Tangerine
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BalanceGasEIP1884 uint64 = 700 // The cost of a BALANCE operation after EIP 1884 (part of Istanbul)
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ExtcodeSizeGasFrontier uint64 = 20 // Cost of EXTCODESIZE before EIP 150 (Tangerine)
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ExtcodeSizeGasEIP150 uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
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SloadGasFrontier uint64 = 50
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SloadGasEIP150 uint64 = 200
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SloadGasEIP1884 uint64 = 800 // Cost of SLOAD after EIP 1884 (part of Istanbul)
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ExtcodeHashGasConstantinople uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
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ExtcodeHashGasEIP1884 uint64 = 700 // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul)
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SelfdestructGasEIP150 uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)
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// EXP has a dynamic portion depending on the size of the exponent
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ExpByteFrontier uint64 = 10 // was set to 10 in Frontier
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"encoding/json"
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"fmt"
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"math/big"
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"strconv"
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"strings"
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"github.com/ethereum/go-ethereum/common"
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@ -109,6 +110,29 @@ type stTransactionMarshaling struct {
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PrivateKey hexutil.Bytes
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}
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// getVMConfig takes a fork definition and returns a chain config.
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// The fork definition can be
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// - a plain forkname, e.g. `Byzantium`,
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// - a fork basename, and a list of EIPs to enable; e.g. `Byzantium+1884+1283`.
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func getVMConfig(forkString string) (baseConfig *params.ChainConfig, eips []int, err error) {
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var (
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splitForks = strings.Split(forkString, "+")
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ok bool
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baseName, eipsStrings = splitForks[0], splitForks[1:]
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)
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if baseConfig, ok = Forks[baseName]; !ok {
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return nil, nil, UnsupportedForkError{baseName}
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}
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for _, eip := range eipsStrings {
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if eipNum, err := strconv.Atoi(eip); err != nil {
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return nil, nil, fmt.Errorf("syntax error, invalid eip number %v", eipNum)
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} else {
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eips = append(eips, eipNum)
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}
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}
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return baseConfig, eips, nil
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}
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// Subtests returns all valid subtests of the test.
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func (t *StateTest) Subtests() []StateSubtest {
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var sub []StateSubtest
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@ -122,10 +146,11 @@ func (t *StateTest) Subtests() []StateSubtest {
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// Run executes a specific subtest.
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func (t *StateTest) Run(subtest StateSubtest, vmconfig vm.Config) (*state.StateDB, error) {
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config, ok := Forks[subtest.Fork]
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if !ok {
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config, eips, err := getVMConfig(subtest.Fork)
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if err != nil {
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return nil, UnsupportedForkError{subtest.Fork}
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}
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vmconfig.ExtraEips = eips
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block := t.genesis(config).ToBlock(nil)
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statedb := MakePreState(rawdb.NewMemoryDatabase(), t.json.Pre)
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