a5a4fa7032
This change makes use of uin256 to represent balance in state. It touches primarily upon statedb, stateobject and state processing, trying to avoid changes in transaction pools, core types, rpc and tracers.
322 lines
9.5 KiB
Go
322 lines
9.5 KiB
Go
// 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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"sort"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/params"
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"github.com/holiman/uint256"
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)
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var activators = map[int]func(*JumpTable){
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5656: enable5656,
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6780: enable6780,
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3855: enable3855,
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3860: enable3860,
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3529: enable3529,
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3198: enable3198,
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2929: enable2929,
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2200: enable2200,
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1884: enable1884,
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1344: enable1344,
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1153: enable1153,
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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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enablerFn, ok := activators[eipNum]
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if !ok {
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return fmt.Errorf("undefined eip %d", eipNum)
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}
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enablerFn(jt)
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return nil
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}
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func ValidEip(eipNum int) bool {
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_, ok := activators[eipNum]
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return ok
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}
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func ActivateableEips() []string {
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var nums []string
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for k := range activators {
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nums = append(nums, fmt.Sprintf("%d", k))
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}
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sort.Strings(nums)
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return nums
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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[SLOAD].constantGas = params.SloadGasEIP1884
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jt[BALANCE].constantGas = params.BalanceGasEIP1884
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jt[EXTCODEHASH].constantGas = params.ExtcodeHashGasEIP1884
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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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}
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}
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func opSelfBalance(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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balance := interpreter.evm.StateDB.GetBalance(scope.Contract.Address())
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scope.Stack.push(balance)
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return nil, nil
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}
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// enable1344 applies EIP-1344 (ChainID Opcode)
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// - Adds an opcode that returns the current chain’s EIP-155 unique identifier
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func enable1344(jt *JumpTable) {
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// New opcode
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jt[CHAINID] = &operation{
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execute: opChainID,
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constantGas: GasQuickStep,
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minStack: minStack(0, 1),
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maxStack: maxStack(0, 1),
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}
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}
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// opChainID implements CHAINID opcode
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func opChainID(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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chainId, _ := uint256.FromBig(interpreter.evm.chainConfig.ChainID)
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scope.Stack.push(chainId)
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return nil, nil
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}
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// enable2200 applies EIP-2200 (Rebalance net-metered SSTORE)
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func enable2200(jt *JumpTable) {
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jt[SLOAD].constantGas = params.SloadGasEIP2200
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jt[SSTORE].dynamicGas = gasSStoreEIP2200
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}
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// enable2929 enables "EIP-2929: Gas cost increases for state access opcodes"
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// https://eips.ethereum.org/EIPS/eip-2929
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func enable2929(jt *JumpTable) {
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jt[SSTORE].dynamicGas = gasSStoreEIP2929
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jt[SLOAD].constantGas = 0
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jt[SLOAD].dynamicGas = gasSLoadEIP2929
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jt[EXTCODECOPY].constantGas = params.WarmStorageReadCostEIP2929
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jt[EXTCODECOPY].dynamicGas = gasExtCodeCopyEIP2929
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jt[EXTCODESIZE].constantGas = params.WarmStorageReadCostEIP2929
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jt[EXTCODESIZE].dynamicGas = gasEip2929AccountCheck
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jt[EXTCODEHASH].constantGas = params.WarmStorageReadCostEIP2929
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jt[EXTCODEHASH].dynamicGas = gasEip2929AccountCheck
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jt[BALANCE].constantGas = params.WarmStorageReadCostEIP2929
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jt[BALANCE].dynamicGas = gasEip2929AccountCheck
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jt[CALL].constantGas = params.WarmStorageReadCostEIP2929
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jt[CALL].dynamicGas = gasCallEIP2929
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jt[CALLCODE].constantGas = params.WarmStorageReadCostEIP2929
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jt[CALLCODE].dynamicGas = gasCallCodeEIP2929
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jt[STATICCALL].constantGas = params.WarmStorageReadCostEIP2929
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jt[STATICCALL].dynamicGas = gasStaticCallEIP2929
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jt[DELEGATECALL].constantGas = params.WarmStorageReadCostEIP2929
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jt[DELEGATECALL].dynamicGas = gasDelegateCallEIP2929
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// This was previously part of the dynamic cost, but we're using it as a constantGas
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// factor here
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jt[SELFDESTRUCT].constantGas = params.SelfdestructGasEIP150
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jt[SELFDESTRUCT].dynamicGas = gasSelfdestructEIP2929
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}
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// enable3529 enabled "EIP-3529: Reduction in refunds":
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// - Removes refunds for selfdestructs
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// - Reduces refunds for SSTORE
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// - Reduces max refunds to 20% gas
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func enable3529(jt *JumpTable) {
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jt[SSTORE].dynamicGas = gasSStoreEIP3529
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jt[SELFDESTRUCT].dynamicGas = gasSelfdestructEIP3529
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}
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// enable3198 applies EIP-3198 (BASEFEE Opcode)
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// - Adds an opcode that returns the current block's base fee.
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func enable3198(jt *JumpTable) {
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// New opcode
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jt[BASEFEE] = &operation{
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execute: opBaseFee,
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constantGas: GasQuickStep,
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minStack: minStack(0, 1),
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maxStack: maxStack(0, 1),
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}
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}
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// enable1153 applies EIP-1153 "Transient Storage"
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// - Adds TLOAD that reads from transient storage
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// - Adds TSTORE that writes to transient storage
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func enable1153(jt *JumpTable) {
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jt[TLOAD] = &operation{
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execute: opTload,
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constantGas: params.WarmStorageReadCostEIP2929,
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minStack: minStack(1, 1),
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maxStack: maxStack(1, 1),
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}
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jt[TSTORE] = &operation{
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execute: opTstore,
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constantGas: params.WarmStorageReadCostEIP2929,
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minStack: minStack(2, 0),
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maxStack: maxStack(2, 0),
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}
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}
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// opTload implements TLOAD opcode
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func opTload(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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loc := scope.Stack.peek()
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hash := common.Hash(loc.Bytes32())
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val := interpreter.evm.StateDB.GetTransientState(scope.Contract.Address(), hash)
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loc.SetBytes(val.Bytes())
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return nil, nil
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}
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// opTstore implements TSTORE opcode
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func opTstore(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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if interpreter.readOnly {
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return nil, ErrWriteProtection
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}
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loc := scope.Stack.pop()
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val := scope.Stack.pop()
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interpreter.evm.StateDB.SetTransientState(scope.Contract.Address(), loc.Bytes32(), val.Bytes32())
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return nil, nil
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}
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// opBaseFee implements BASEFEE opcode
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func opBaseFee(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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baseFee, _ := uint256.FromBig(interpreter.evm.Context.BaseFee)
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scope.Stack.push(baseFee)
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return nil, nil
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}
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// enable3855 applies EIP-3855 (PUSH0 opcode)
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func enable3855(jt *JumpTable) {
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// New opcode
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jt[PUSH0] = &operation{
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execute: opPush0,
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constantGas: GasQuickStep,
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minStack: minStack(0, 1),
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maxStack: maxStack(0, 1),
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}
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}
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// opPush0 implements the PUSH0 opcode
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func opPush0(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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scope.Stack.push(new(uint256.Int))
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return nil, nil
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}
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// enable3860 enables "EIP-3860: Limit and meter initcode"
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// https://eips.ethereum.org/EIPS/eip-3860
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func enable3860(jt *JumpTable) {
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jt[CREATE].dynamicGas = gasCreateEip3860
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jt[CREATE2].dynamicGas = gasCreate2Eip3860
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}
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// enable5656 enables EIP-5656 (MCOPY opcode)
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// https://eips.ethereum.org/EIPS/eip-5656
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func enable5656(jt *JumpTable) {
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jt[MCOPY] = &operation{
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execute: opMcopy,
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constantGas: GasFastestStep,
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dynamicGas: gasMcopy,
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minStack: minStack(3, 0),
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maxStack: maxStack(3, 0),
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memorySize: memoryMcopy,
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}
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}
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// opMcopy implements the MCOPY opcode (https://eips.ethereum.org/EIPS/eip-5656)
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func opMcopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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var (
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dst = scope.Stack.pop()
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src = scope.Stack.pop()
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length = scope.Stack.pop()
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)
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// These values are checked for overflow during memory expansion calculation
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// (the memorySize function on the opcode).
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scope.Memory.Copy(dst.Uint64(), src.Uint64(), length.Uint64())
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return nil, nil
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}
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// opBlobHash implements the BLOBHASH opcode
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func opBlobHash(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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index := scope.Stack.peek()
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if index.LtUint64(uint64(len(interpreter.evm.TxContext.BlobHashes))) {
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blobHash := interpreter.evm.TxContext.BlobHashes[index.Uint64()]
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index.SetBytes32(blobHash[:])
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} else {
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index.Clear()
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}
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return nil, nil
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}
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// opBlobBaseFee implements BLOBBASEFEE opcode
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func opBlobBaseFee(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
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blobBaseFee, _ := uint256.FromBig(interpreter.evm.Context.BlobBaseFee)
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scope.Stack.push(blobBaseFee)
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return nil, nil
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}
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// enable4844 applies EIP-4844 (BLOBHASH opcode)
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func enable4844(jt *JumpTable) {
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jt[BLOBHASH] = &operation{
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execute: opBlobHash,
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constantGas: GasFastestStep,
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minStack: minStack(1, 1),
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maxStack: maxStack(1, 1),
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}
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}
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// enable7516 applies EIP-7516 (BLOBBASEFEE opcode)
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func enable7516(jt *JumpTable) {
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jt[BLOBBASEFEE] = &operation{
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execute: opBlobBaseFee,
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constantGas: GasQuickStep,
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minStack: minStack(0, 1),
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maxStack: maxStack(0, 1),
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}
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}
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// enable6780 applies EIP-6780 (deactivate SELFDESTRUCT)
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func enable6780(jt *JumpTable) {
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jt[SELFDESTRUCT] = &operation{
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execute: opSelfdestruct6780,
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dynamicGas: gasSelfdestructEIP3529,
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constantGas: params.SelfdestructGasEIP150,
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minStack: minStack(1, 0),
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maxStack: maxStack(1, 0),
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}
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}
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