mirror of https://github.com/status-im/op-geth.git
244 lines
7.3 KiB
Go
244 lines
7.3 KiB
Go
// Copyright 2019 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/>.
|
||
|
||
package vm
|
||
|
||
import (
|
||
"fmt"
|
||
"sort"
|
||
|
||
"github.com/ethereum/go-ethereum/common"
|
||
"github.com/ethereum/go-ethereum/params"
|
||
"github.com/holiman/uint256"
|
||
)
|
||
|
||
var activators = map[int]func(*JumpTable){
|
||
3855: enable3855,
|
||
3860: enable3860,
|
||
3529: enable3529,
|
||
3198: enable3198,
|
||
2929: enable2929,
|
||
2200: enable2200,
|
||
1884: enable1884,
|
||
1344: enable1344,
|
||
1153: enable1153,
|
||
}
|
||
|
||
// EnableEIP enables the given EIP on the config.
|
||
// This operation writes in-place, and callers need to ensure that the globally
|
||
// defined jump tables are not polluted.
|
||
func EnableEIP(eipNum int, jt *JumpTable) error {
|
||
enablerFn, ok := activators[eipNum]
|
||
if !ok {
|
||
return fmt.Errorf("undefined eip %d", eipNum)
|
||
}
|
||
enablerFn(jt)
|
||
return nil
|
||
}
|
||
|
||
func ValidEip(eipNum int) bool {
|
||
_, ok := activators[eipNum]
|
||
return ok
|
||
}
|
||
func ActivateableEips() []string {
|
||
var nums []string
|
||
for k := range activators {
|
||
nums = append(nums, fmt.Sprintf("%d", k))
|
||
}
|
||
sort.Strings(nums)
|
||
return nums
|
||
}
|
||
|
||
// enable1884 applies EIP-1884 to the given jump table:
|
||
// - Increase cost of BALANCE to 700
|
||
// - Increase cost of EXTCODEHASH to 700
|
||
// - Increase cost of SLOAD to 800
|
||
// - Define SELFBALANCE, with cost GasFastStep (5)
|
||
func enable1884(jt *JumpTable) {
|
||
// Gas cost changes
|
||
jt[SLOAD].constantGas = params.SloadGasEIP1884
|
||
jt[BALANCE].constantGas = params.BalanceGasEIP1884
|
||
jt[EXTCODEHASH].constantGas = params.ExtcodeHashGasEIP1884
|
||
|
||
// New opcode
|
||
jt[SELFBALANCE] = &operation{
|
||
execute: opSelfBalance,
|
||
constantGas: GasFastStep,
|
||
minStack: minStack(0, 1),
|
||
maxStack: maxStack(0, 1),
|
||
}
|
||
}
|
||
|
||
func opSelfBalance(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
|
||
balance, _ := uint256.FromBig(interpreter.evm.StateDB.GetBalance(scope.Contract.Address()))
|
||
scope.Stack.push(balance)
|
||
return nil, nil
|
||
}
|
||
|
||
// enable1344 applies EIP-1344 (ChainID Opcode)
|
||
// - Adds an opcode that returns the current chain’s EIP-155 unique identifier
|
||
func enable1344(jt *JumpTable) {
|
||
// New opcode
|
||
jt[CHAINID] = &operation{
|
||
execute: opChainID,
|
||
constantGas: GasQuickStep,
|
||
minStack: minStack(0, 1),
|
||
maxStack: maxStack(0, 1),
|
||
}
|
||
}
|
||
|
||
// opChainID implements CHAINID opcode
|
||
func opChainID(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
|
||
chainId, _ := uint256.FromBig(interpreter.evm.chainConfig.ChainID)
|
||
scope.Stack.push(chainId)
|
||
return nil, nil
|
||
}
|
||
|
||
// enable2200 applies EIP-2200 (Rebalance net-metered SSTORE)
|
||
func enable2200(jt *JumpTable) {
|
||
jt[SLOAD].constantGas = params.SloadGasEIP2200
|
||
jt[SSTORE].dynamicGas = gasSStoreEIP2200
|
||
}
|
||
|
||
// enable2929 enables "EIP-2929: Gas cost increases for state access opcodes"
|
||
// https://eips.ethereum.org/EIPS/eip-2929
|
||
func enable2929(jt *JumpTable) {
|
||
jt[SSTORE].dynamicGas = gasSStoreEIP2929
|
||
|
||
jt[SLOAD].constantGas = 0
|
||
jt[SLOAD].dynamicGas = gasSLoadEIP2929
|
||
|
||
jt[EXTCODECOPY].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[EXTCODECOPY].dynamicGas = gasExtCodeCopyEIP2929
|
||
|
||
jt[EXTCODESIZE].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[EXTCODESIZE].dynamicGas = gasEip2929AccountCheck
|
||
|
||
jt[EXTCODEHASH].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[EXTCODEHASH].dynamicGas = gasEip2929AccountCheck
|
||
|
||
jt[BALANCE].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[BALANCE].dynamicGas = gasEip2929AccountCheck
|
||
|
||
jt[CALL].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[CALL].dynamicGas = gasCallEIP2929
|
||
|
||
jt[CALLCODE].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[CALLCODE].dynamicGas = gasCallCodeEIP2929
|
||
|
||
jt[STATICCALL].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[STATICCALL].dynamicGas = gasStaticCallEIP2929
|
||
|
||
jt[DELEGATECALL].constantGas = params.WarmStorageReadCostEIP2929
|
||
jt[DELEGATECALL].dynamicGas = gasDelegateCallEIP2929
|
||
|
||
// This was previously part of the dynamic cost, but we're using it as a constantGas
|
||
// factor here
|
||
jt[SELFDESTRUCT].constantGas = params.SelfdestructGasEIP150
|
||
jt[SELFDESTRUCT].dynamicGas = gasSelfdestructEIP2929
|
||
}
|
||
|
||
// enable3529 enabled "EIP-3529: Reduction in refunds":
|
||
// - Removes refunds for selfdestructs
|
||
// - Reduces refunds for SSTORE
|
||
// - Reduces max refunds to 20% gas
|
||
func enable3529(jt *JumpTable) {
|
||
jt[SSTORE].dynamicGas = gasSStoreEIP3529
|
||
jt[SELFDESTRUCT].dynamicGas = gasSelfdestructEIP3529
|
||
}
|
||
|
||
// enable3198 applies EIP-3198 (BASEFEE Opcode)
|
||
// - Adds an opcode that returns the current block's base fee.
|
||
func enable3198(jt *JumpTable) {
|
||
// New opcode
|
||
jt[BASEFEE] = &operation{
|
||
execute: opBaseFee,
|
||
constantGas: GasQuickStep,
|
||
minStack: minStack(0, 1),
|
||
maxStack: maxStack(0, 1),
|
||
}
|
||
}
|
||
|
||
// enable1153 applies EIP-1153 "Transient Storage"
|
||
// - Adds TLOAD that reads from transient storage
|
||
// - Adds TSTORE that writes to transient storage
|
||
func enable1153(jt *JumpTable) {
|
||
jt[TLOAD] = &operation{
|
||
execute: opTload,
|
||
constantGas: params.WarmStorageReadCostEIP2929,
|
||
minStack: minStack(1, 1),
|
||
maxStack: maxStack(1, 1),
|
||
}
|
||
|
||
jt[TSTORE] = &operation{
|
||
execute: opTstore,
|
||
constantGas: params.WarmStorageReadCostEIP2929,
|
||
minStack: minStack(2, 0),
|
||
maxStack: maxStack(2, 0),
|
||
}
|
||
}
|
||
|
||
// opTload implements TLOAD opcode
|
||
func opTload(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
|
||
loc := scope.Stack.peek()
|
||
hash := common.Hash(loc.Bytes32())
|
||
val := interpreter.evm.StateDB.GetTransientState(scope.Contract.Address(), hash)
|
||
loc.SetBytes(val.Bytes())
|
||
return nil, nil
|
||
}
|
||
|
||
// opTstore implements TSTORE opcode
|
||
func opTstore(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
|
||
if interpreter.readOnly {
|
||
return nil, ErrWriteProtection
|
||
}
|
||
loc := scope.Stack.pop()
|
||
val := scope.Stack.pop()
|
||
interpreter.evm.StateDB.SetTransientState(scope.Contract.Address(), loc.Bytes32(), val.Bytes32())
|
||
return nil, nil
|
||
}
|
||
|
||
// opBaseFee implements BASEFEE opcode
|
||
func opBaseFee(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
|
||
baseFee, _ := uint256.FromBig(interpreter.evm.Context.BaseFee)
|
||
scope.Stack.push(baseFee)
|
||
return nil, nil
|
||
}
|
||
|
||
// enable3855 applies EIP-3855 (PUSH0 opcode)
|
||
func enable3855(jt *JumpTable) {
|
||
// New opcode
|
||
jt[PUSH0] = &operation{
|
||
execute: opPush0,
|
||
constantGas: GasQuickStep,
|
||
minStack: minStack(0, 1),
|
||
maxStack: maxStack(0, 1),
|
||
}
|
||
}
|
||
|
||
// opPush0 implements the PUSH0 opcode
|
||
func opPush0(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
|
||
scope.Stack.push(new(uint256.Int))
|
||
return nil, nil
|
||
}
|
||
|
||
// ebnable3860 enables "EIP-3860: Limit and meter initcode"
|
||
// https://eips.ethereum.org/EIPS/eip-3860
|
||
func enable3860(jt *JumpTable) {
|
||
jt[CREATE].dynamicGas = gasCreateEip3860
|
||
jt[CREATE2].dynamicGas = gasCreate2Eip3860
|
||
}
|