forked from cerc-io/plugeth
core/vm, params: refactor chain configuration (#19735)
* params, core/vm: deprecating gastable, part 1 * core/vm, params: deprecate gastable, use both constant and dynamic gas * core/vm, params: remove gastable, remove copypaste * core/vm: make use of the chainrules * interpreter: make tracing count constant+dynamic gas * core/vm: review concerns (param/method name changes) * core/vm: make use of chainrules more
This commit is contained in:
Martin Holst Swende
Péter Szilágyi
parent
a7de796840
commit
aa6005b469
@ -44,7 +44,7 @@ type (
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func run(evm *EVM, contract *Contract, input []byte, readOnly bool) ([]byte, error) {
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if contract.CodeAddr != nil {
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precompiles := PrecompiledContractsHomestead
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if evm.ChainConfig().IsByzantium(evm.BlockNumber) {
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if evm.chainRules.IsByzantium {
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precompiles = PrecompiledContractsByzantium
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}
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if p := precompiles[*contract.CodeAddr]; p != nil {
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@ -203,10 +203,10 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
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)
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if !evm.StateDB.Exist(addr) {
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precompiles := PrecompiledContractsHomestead
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if evm.ChainConfig().IsByzantium(evm.BlockNumber) {
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if evm.chainRules.IsByzantium {
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precompiles = PrecompiledContractsByzantium
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}
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if precompiles[addr] == nil && evm.ChainConfig().IsEIP158(evm.BlockNumber) && value.Sign() == 0 {
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if precompiles[addr] == nil && evm.chainRules.IsEIP158 && value.Sign() == 0 {
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// Calling a non existing account, don't do anything, but ping the tracer
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if evm.vmConfig.Debug && evm.depth == 0 {
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evm.vmConfig.Tracer.CaptureStart(caller.Address(), addr, false, input, gas, value)
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@ -394,7 +394,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
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// Create a new account on the state
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snapshot := evm.StateDB.Snapshot()
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evm.StateDB.CreateAccount(address)
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if evm.ChainConfig().IsEIP158(evm.BlockNumber) {
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if evm.chainRules.IsEIP158 {
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evm.StateDB.SetNonce(address, 1)
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}
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evm.Transfer(evm.StateDB, caller.Address(), address, value)
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@ -416,7 +416,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
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ret, err := run(evm, contract, nil, false)
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// check whether the max code size has been exceeded
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maxCodeSizeExceeded := evm.ChainConfig().IsEIP158(evm.BlockNumber) && len(ret) > params.MaxCodeSize
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maxCodeSizeExceeded := evm.chainRules.IsEIP158 && len(ret) > params.MaxCodeSize
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// if the contract creation ran successfully and no errors were returned
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// calculate the gas required to store the code. If the code could not
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// be stored due to not enough gas set an error and let it be handled
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@ -433,7 +433,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
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// When an error was returned by the EVM or when setting the creation code
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// above we revert to the snapshot and consume any gas remaining. Additionally
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// when we're in homestead this also counts for code storage gas errors.
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if maxCodeSizeExceeded || (err != nil && (evm.ChainConfig().IsHomestead(evm.BlockNumber) || err != ErrCodeStoreOutOfGas)) {
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if maxCodeSizeExceeded || (err != nil && (evm.chainRules.IsHomestead || err != ErrCodeStoreOutOfGas)) {
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evm.StateDB.RevertToSnapshot(snapshot)
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if err != errExecutionReverted {
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contract.UseGas(contract.Gas)
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@ -18,8 +18,6 @@ package vm
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/params"
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)
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// Gas costs
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@ -34,10 +32,10 @@ const (
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// calcGas returns the actual gas cost of the call.
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//
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// The cost of gas was changed during the homestead price change HF. To allow for EIP150
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// to be implemented. The returned gas is gas - base * 63 / 64.
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func callGas(gasTable params.GasTable, availableGas, base uint64, callCost *big.Int) (uint64, error) {
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if gasTable.CreateBySuicide > 0 {
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// The cost of gas was changed during the homestead price change HF.
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// As part of EIP 150 (TangerineWhistle), the returned gas is gas - base * 63 / 64.
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func callGas(isEip150 bool, availableGas, base uint64, callCost *big.Int) (uint64, error) {
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if isEip150 {
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availableGas = availableGas - base
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gas := availableGas - availableGas/64
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// If the bit length exceeds 64 bit we know that the newly calculated "gas" for EIP150
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@ -53,18 +53,22 @@ func memoryGasCost(mem *Memory, newMemSize uint64) (uint64, error) {
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return 0, nil
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}
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func gasCallDataCopy(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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// memoryCopierGas creates the gas functions for the following opcodes, and takes
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// the stack position of the operand which determines the size of the data to copy
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// as argument:
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// CALLDATACOPY (stack position 2)
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// CODECOPY (stack position 2)
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// EXTCODECOPY (stack poition 3)
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// RETURNDATACOPY (stack position 2)
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func memoryCopierGas(stackpos int) gasFunc {
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return func(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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// Gas for expanding the memory
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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var overflow bool
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if gas, overflow = math.SafeAdd(gas, GasFastestStep); overflow {
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return 0, errGasUintOverflow
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}
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words, overflow := bigUint64(stack.Back(2))
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// And gas for copying data, charged per word at param.CopyGas
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words, overflow := bigUint64(stack.Back(stackpos))
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if overflow {
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return 0, errGasUintOverflow
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}
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@ -77,35 +81,17 @@ func gasCallDataCopy(gt params.GasTable, evm *EVM, contract *Contract, stack *St
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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}
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func gasReturnDataCopy(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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var (
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gasCallDataCopy = memoryCopierGas(2)
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gasCodeCopy = memoryCopierGas(2)
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gasExtCodeCopy = memoryCopierGas(3)
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gasReturnDataCopy = memoryCopierGas(2)
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)
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var overflow bool
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if gas, overflow = math.SafeAdd(gas, GasFastestStep); overflow {
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return 0, errGasUintOverflow
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}
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words, overflow := bigUint64(stack.Back(2))
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if overflow {
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return 0, errGasUintOverflow
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}
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if words, overflow = math.SafeMul(toWordSize(words), params.CopyGas); overflow {
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return 0, errGasUintOverflow
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}
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if gas, overflow = math.SafeAdd(gas, words); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasSStore(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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func gasSStore(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var (
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y, x = stack.Back(1), stack.Back(0)
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current = evm.StateDB.GetState(contract.Address(), common.BigToHash(x))
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@ -175,7 +161,7 @@ func gasSStore(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, m
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}
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func makeGasLog(n uint64) gasFunc {
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return func(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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return func(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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requestedSize, overflow := bigUint64(stack.Back(1))
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if overflow {
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return 0, errGasUintOverflow
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@ -204,17 +190,11 @@ func makeGasLog(n uint64) gasFunc {
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}
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}
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func gasSha3(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var overflow bool
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func gasSha3(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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if gas, overflow = math.SafeAdd(gas, params.Sha3Gas); overflow {
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return 0, errGasUintOverflow
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}
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wordGas, overflow := bigUint64(stack.Back(1))
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if overflow {
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return 0, errGasUintOverflow
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@ -228,117 +208,27 @@ func gasSha3(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem
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return gas, nil
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}
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func gasCodeCopy(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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// pureMemoryGascost is used by several operations, which aside from their
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// static cost have a dynamic cost which is solely based on the memory
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// expansion
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func pureMemoryGascost(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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return memoryGasCost(mem, memorySize)
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}
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var (
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gasReturn = pureMemoryGascost
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gasRevert = pureMemoryGascost
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gasMLoad = pureMemoryGascost
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gasMStore8 = pureMemoryGascost
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gasMStore = pureMemoryGascost
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gasCreate = pureMemoryGascost
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)
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func gasCreate2(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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var overflow bool
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if gas, overflow = math.SafeAdd(gas, GasFastestStep); overflow {
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return 0, errGasUintOverflow
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}
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wordGas, overflow := bigUint64(stack.Back(2))
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if overflow {
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return 0, errGasUintOverflow
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}
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if wordGas, overflow = math.SafeMul(toWordSize(wordGas), params.CopyGas); overflow {
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return 0, errGasUintOverflow
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}
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if gas, overflow = math.SafeAdd(gas, wordGas); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasExtCodeCopy(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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var overflow bool
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if gas, overflow = math.SafeAdd(gas, gt.ExtcodeCopy); overflow {
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return 0, errGasUintOverflow
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}
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wordGas, overflow := bigUint64(stack.Back(3))
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if overflow {
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return 0, errGasUintOverflow
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}
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if wordGas, overflow = math.SafeMul(toWordSize(wordGas), params.CopyGas); overflow {
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return 0, errGasUintOverflow
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}
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if gas, overflow = math.SafeAdd(gas, wordGas); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasExtCodeHash(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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return gt.ExtcodeHash, nil
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}
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func gasMLoad(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var overflow bool
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, errGasUintOverflow
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}
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if gas, overflow = math.SafeAdd(gas, GasFastestStep); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasMStore8(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var overflow bool
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, errGasUintOverflow
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}
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if gas, overflow = math.SafeAdd(gas, GasFastestStep); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasMStore(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var overflow bool
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, errGasUintOverflow
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}
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if gas, overflow = math.SafeAdd(gas, GasFastestStep); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasCreate(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var overflow bool
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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if gas, overflow = math.SafeAdd(gas, params.CreateGas); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasCreate2(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var overflow bool
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gas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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if gas, overflow = math.SafeAdd(gas, params.Create2Gas); overflow {
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return 0, errGasUintOverflow
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}
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wordGas, overflow := bigUint64(stack.Back(2))
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if overflow {
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return 0, errGasUintOverflow
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@ -349,27 +239,14 @@ func gasCreate2(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack,
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if gas, overflow = math.SafeAdd(gas, wordGas); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasBalance(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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return gt.Balance, nil
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}
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func gasExtCodeSize(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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return gt.ExtcodeSize, nil
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}
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func gasSLoad(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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return gt.SLoad, nil
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}
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func gasExp(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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func gasExpFrontier(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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expByteLen := uint64((stack.data[stack.len()-2].BitLen() + 7) / 8)
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var (
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gas = expByteLen * gt.ExpByte // no overflow check required. Max is 256 * ExpByte gas
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gas = expByteLen * params.ExpByteFrontier // no overflow check required. Max is 256 * ExpByte gas
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overflow bool
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)
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if gas, overflow = math.SafeAdd(gas, params.ExpGas); overflow {
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@ -378,14 +255,26 @@ func gasExp(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem
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return gas, nil
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}
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func gasCall(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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func gasExpEIP158(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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expByteLen := uint64((stack.data[stack.len()-2].BitLen() + 7) / 8)
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var (
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gas = gt.Calls
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gas = expByteLen * params.ExpByteEIP158 // no overflow check required. Max is 256 * ExpByte gas
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overflow bool
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)
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if gas, overflow = math.SafeAdd(gas, params.ExpGas); overflow {
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return 0, errGasUintOverflow
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}
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return gas, nil
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}
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func gasCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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var (
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gas uint64
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transfersValue = stack.Back(2).Sign() != 0
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address = common.BigToAddress(stack.Back(1))
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eip158 = evm.ChainConfig().IsEIP158(evm.BlockNumber)
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)
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if eip158 {
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if evm.chainRules.IsEIP158 {
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if transfersValue && evm.StateDB.Empty(address) {
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gas += params.CallNewAccountGas
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}
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@ -404,7 +293,7 @@ func gasCall(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem
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return 0, errGasUintOverflow
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}
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evm.callGasTemp, err = callGas(gt, contract.Gas, gas, stack.Back(0))
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evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
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if err != nil {
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return 0, err
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}
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@ -414,21 +303,22 @@ func gasCall(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem
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return gas, nil
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}
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func gasCallCode(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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gas := gt.Calls
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if stack.Back(2).Sign() != 0 {
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gas += params.CallValueTransferGas
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}
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func gasCallCode(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
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memoryGas, err := memoryGasCost(mem, memorySize)
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if err != nil {
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return 0, err
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}
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var overflow bool
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var (
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gas uint64
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overflow bool
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)
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if stack.Back(2).Sign() != 0 {
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gas += params.CallValueTransferGas
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}
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if gas, overflow = math.SafeAdd(gas, memoryGas); overflow {
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return 0, errGasUintOverflow
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}
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evm.callGasTemp, err = callGas(gt, contract.Gas, gas, stack.Back(0))
|
||||
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
@ -438,76 +328,57 @@ func gasCallCode(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack,
|
||||
return gas, nil
|
||||
}
|
||||
|
||||
func gasReturn(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
return memoryGasCost(mem, memorySize)
|
||||
func gasDelegateCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
gas, err := memoryGasCost(mem, memorySize)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
var overflow bool
|
||||
if gas, overflow = math.SafeAdd(gas, evm.callGasTemp); overflow {
|
||||
return 0, errGasUintOverflow
|
||||
}
|
||||
return gas, nil
|
||||
}
|
||||
|
||||
func gasRevert(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
return memoryGasCost(mem, memorySize)
|
||||
func gasStaticCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
gas, err := memoryGasCost(mem, memorySize)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
var overflow bool
|
||||
if gas, overflow = math.SafeAdd(gas, evm.callGasTemp); overflow {
|
||||
return 0, errGasUintOverflow
|
||||
}
|
||||
return gas, nil
|
||||
}
|
||||
|
||||
func gasSuicide(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
func gasSelfdestruct(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
var gas uint64
|
||||
// EIP150 homestead gas reprice fork:
|
||||
if evm.ChainConfig().IsEIP150(evm.BlockNumber) {
|
||||
gas = gt.Suicide
|
||||
var (
|
||||
address = common.BigToAddress(stack.Back(0))
|
||||
eip158 = evm.ChainConfig().IsEIP158(evm.BlockNumber)
|
||||
)
|
||||
if evm.chainRules.IsEIP150 {
|
||||
gas = params.SelfdestructGasEIP150
|
||||
var address = common.BigToAddress(stack.Back(0))
|
||||
|
||||
if eip158 {
|
||||
if evm.chainRules.IsEIP158 {
|
||||
// if empty and transfers value
|
||||
if evm.StateDB.Empty(address) && evm.StateDB.GetBalance(contract.Address()).Sign() != 0 {
|
||||
gas += gt.CreateBySuicide
|
||||
gas += params.CreateBySelfdestructGas
|
||||
}
|
||||
} else if !evm.StateDB.Exist(address) {
|
||||
gas += gt.CreateBySuicide
|
||||
gas += params.CreateBySelfdestructGas
|
||||
}
|
||||
}
|
||||
|
||||
if !evm.StateDB.HasSuicided(contract.Address()) {
|
||||
evm.StateDB.AddRefund(params.SuicideRefundGas)
|
||||
}
|
||||
return gas, nil
|
||||
}
|
||||
|
||||
func gasDelegateCall(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
gas, err := memoryGasCost(mem, memorySize)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
var overflow bool
|
||||
if gas, overflow = math.SafeAdd(gas, gt.Calls); overflow {
|
||||
return 0, errGasUintOverflow
|
||||
}
|
||||
|
||||
evm.callGasTemp, err = callGas(gt, contract.Gas, gas, stack.Back(0))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
if gas, overflow = math.SafeAdd(gas, evm.callGasTemp); overflow {
|
||||
return 0, errGasUintOverflow
|
||||
}
|
||||
return gas, nil
|
||||
}
|
||||
|
||||
func gasStaticCall(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
|
||||
gas, err := memoryGasCost(mem, memorySize)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
var overflow bool
|
||||
if gas, overflow = math.SafeAdd(gas, gt.Calls); overflow {
|
||||
return 0, errGasUintOverflow
|
||||
}
|
||||
|
||||
evm.callGasTemp, err = callGas(gt, contract.Gas, gas, stack.Back(0))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
if gas, overflow = math.SafeAdd(gas, evm.callGasTemp); overflow {
|
||||
return 0, errGasUintOverflow
|
||||
evm.StateDB.AddRefund(params.SelfdestructRefundGas)
|
||||
}
|
||||
return gas, nil
|
||||
}
|
||||
|
||||
@ -694,7 +694,7 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memor
|
||||
input = memory.Get(offset.Int64(), size.Int64())
|
||||
gas = contract.Gas
|
||||
)
|
||||
if interpreter.evm.ChainConfig().IsEIP150(interpreter.evm.BlockNumber) {
|
||||
if interpreter.evm.chainRules.IsEIP150 {
|
||||
gas -= gas / 64
|
||||
}
|
||||
|
||||
@ -704,7 +704,7 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memor
|
||||
// homestead we must check for CodeStoreOutOfGasError (homestead only
|
||||
// rule) and treat as an error, if the ruleset is frontier we must
|
||||
// ignore this error and pretend the operation was successful.
|
||||
if interpreter.evm.ChainConfig().IsHomestead(interpreter.evm.BlockNumber) && suberr == ErrCodeStoreOutOfGas {
|
||||
if interpreter.evm.chainRules.IsHomestead && suberr == ErrCodeStoreOutOfGas {
|
||||
stack.push(interpreter.intPool.getZero())
|
||||
} else if suberr != nil && suberr != ErrCodeStoreOutOfGas {
|
||||
stack.push(interpreter.intPool.getZero())
|
||||
|
||||
@ -23,7 +23,6 @@ import (
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/common/math"
|
||||
"github.com/ethereum/go-ethereum/params"
|
||||
)
|
||||
|
||||
// Config are the configuration options for the Interpreter
|
||||
@ -73,7 +72,6 @@ type keccakState interface {
|
||||
type EVMInterpreter struct {
|
||||
evm *EVM
|
||||
cfg Config
|
||||
gasTable params.GasTable
|
||||
|
||||
intPool *intPool
|
||||
|
||||
@ -91,11 +89,15 @@ func NewEVMInterpreter(evm *EVM, cfg Config) *EVMInterpreter {
|
||||
// we'll set the default jump table.
|
||||
if !cfg.JumpTable[STOP].valid {
|
||||
switch {
|
||||
case evm.ChainConfig().IsConstantinople(evm.BlockNumber):
|
||||
case evm.chainRules.IsConstantinople:
|
||||
cfg.JumpTable = constantinopleInstructionSet
|
||||
case evm.ChainConfig().IsByzantium(evm.BlockNumber):
|
||||
case evm.chainRules.IsByzantium:
|
||||
cfg.JumpTable = byzantiumInstructionSet
|
||||
case evm.ChainConfig().IsHomestead(evm.BlockNumber):
|
||||
case evm.chainRules.IsEIP158:
|
||||
cfg.JumpTable = spuriousDragonInstructionSet
|
||||
case evm.chainRules.IsEIP150:
|
||||
cfg.JumpTable = tangerineWhistleInstructionSet
|
||||
case evm.chainRules.IsHomestead:
|
||||
cfg.JumpTable = homesteadInstructionSet
|
||||
default:
|
||||
cfg.JumpTable = frontierInstructionSet
|
||||
@ -105,7 +107,6 @@ func NewEVMInterpreter(evm *EVM, cfg Config) *EVMInterpreter {
|
||||
return &EVMInterpreter{
|
||||
evm: evm,
|
||||
cfg: cfg,
|
||||
gasTable: evm.ChainConfig().GasTable(evm.BlockNumber),
|
||||
}
|
||||
}
|
||||
|
||||
@ -210,6 +211,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
|
||||
}
|
||||
}
|
||||
// Static portion of gas
|
||||
cost = operation.constantGas // For tracing
|
||||
if !contract.UseGas(operation.constantGas) {
|
||||
return nil, ErrOutOfGas
|
||||
}
|
||||
@ -234,8 +236,10 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
|
||||
// consume the gas and return an error if not enough gas is available.
|
||||
// cost is explicitly set so that the capture state defer method can get the proper cost
|
||||
if operation.dynamicGas != nil {
|
||||
cost, err = operation.dynamicGas(in.gasTable, in.evm, contract, stack, mem, memorySize)
|
||||
if err != nil || !contract.UseGas(cost) {
|
||||
var dynamicCost uint64
|
||||
dynamicCost, err = operation.dynamicGas(in.evm, contract, stack, mem, memorySize)
|
||||
cost += dynamicCost // total cost, for debug tracing
|
||||
if err != nil || !contract.UseGas(dynamicCost) {
|
||||
return nil, ErrOutOfGas
|
||||
}
|
||||
}
|
||||
|
||||
@ -24,7 +24,7 @@ import (
|
||||
|
||||
type (
|
||||
executionFunc func(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error)
|
||||
gasFunc func(params.GasTable, *EVM, *Contract, *Stack, *Memory, uint64) (uint64, error) // last parameter is the requested memory size as a uint64
|
||||
gasFunc func(*EVM, *Contract, *Stack, *Memory, uint64) (uint64, error) // last parameter is the requested memory size as a uint64
|
||||
// memorySizeFunc returns the required size, and whether the operation overflowed a uint64
|
||||
memorySizeFunc func(*Stack) (size uint64, overflow bool)
|
||||
)
|
||||
@ -56,6 +56,8 @@ type operation struct {
|
||||
var (
|
||||
frontierInstructionSet = newFrontierInstructionSet()
|
||||
homesteadInstructionSet = newHomesteadInstructionSet()
|
||||
tangerineWhistleInstructionSet = newTangerineWhistleInstructionSet()
|
||||
spuriousDragonInstructionSet = newSpuriousDragonInstructionSet()
|
||||
byzantiumInstructionSet = newByzantiumInstructionSet()
|
||||
constantinopleInstructionSet = newConstantinopleInstructionSet()
|
||||
)
|
||||
@ -88,13 +90,14 @@ func newConstantinopleInstructionSet() [256]operation {
|
||||
}
|
||||
instructionSet[EXTCODEHASH] = operation{
|
||||
execute: opExtCodeHash,
|
||||
dynamicGas: gasExtCodeHash,
|
||||
constantGas: params.ExtcodeHashGas,
|
||||
minStack: minStack(1, 1),
|
||||
maxStack: maxStack(1, 1),
|
||||
valid: true,
|
||||
}
|
||||
instructionSet[CREATE2] = operation{
|
||||
execute: opCreate2,
|
||||
constantGas: params.Create2Gas,
|
||||
dynamicGas: gasCreate2,
|
||||
minStack: minStack(4, 1),
|
||||
maxStack: maxStack(4, 1),
|
||||
@ -110,9 +113,10 @@ func newConstantinopleInstructionSet() [256]operation {
|
||||
// byzantium instructions.
|
||||
func newByzantiumInstructionSet() [256]operation {
|
||||
// instructions that can be executed during the homestead phase.
|
||||
instructionSet := newHomesteadInstructionSet()
|
||||
instructionSet := newSpuriousDragonInstructionSet()
|
||||
instructionSet[STATICCALL] = operation{
|
||||
execute: opStaticCall,
|
||||
constantGas: params.CallGasEIP150,
|
||||
dynamicGas: gasStaticCall,
|
||||
minStack: minStack(6, 1),
|
||||
maxStack: maxStack(6, 1),
|
||||
@ -129,6 +133,7 @@ func newByzantiumInstructionSet() [256]operation {
|
||||
}
|
||||
instructionSet[RETURNDATACOPY] = operation{
|
||||
execute: opReturnDataCopy,
|
||||
constantGas: GasFastestStep,
|
||||
dynamicGas: gasReturnDataCopy,
|
||||
minStack: minStack(3, 0),
|
||||
maxStack: maxStack(3, 0),
|
||||
@ -148,6 +153,27 @@ func newByzantiumInstructionSet() [256]operation {
|
||||
return instructionSet
|
||||
}
|
||||
|
||||
// EIP 158 a.k.a Spurious Dragon
|
||||
func newSpuriousDragonInstructionSet() [256]operation {
|
||||
instructionSet := newTangerineWhistleInstructionSet()
|
||||
instructionSet[EXP].dynamicGas = gasExpEIP158
|
||||
return instructionSet
|
||||
|
||||
}
|
||||
|
||||
// EIP 150 a.k.a Tangerine Whistle
|
||||
func newTangerineWhistleInstructionSet() [256]operation {
|
||||
instructionSet := newHomesteadInstructionSet()
|
||||
instructionSet[BALANCE].constantGas = params.BalanceGasEIP150
|
||||
instructionSet[EXTCODESIZE].constantGas = params.ExtcodeSizeGasEIP150
|
||||
instructionSet[SLOAD].constantGas = params.SloadGasEIP150
|
||||
instructionSet[EXTCODECOPY].constantGas = params.ExtcodeCopyBaseEIP150
|
||||
instructionSet[CALL].constantGas = params.CallGasEIP150
|
||||
instructionSet[CALLCODE].constantGas = params.CallGasEIP150
|
||||
instructionSet[DELEGATECALL].constantGas = params.CallGasEIP150
|
||||
return instructionSet
|
||||
}
|
||||
|
||||
// NewHomesteadInstructionSet returns the frontier and homestead
|
||||
// instructions that can be executed during the homestead phase.
|
||||
func newHomesteadInstructionSet() [256]operation {
|
||||
@ -155,6 +181,7 @@ func newHomesteadInstructionSet() [256]operation {
|
||||
instructionSet[DELEGATECALL] = operation{
|
||||
execute: opDelegateCall,
|
||||
dynamicGas: gasDelegateCall,
|
||||
constantGas: params.CallGasFrontier,
|
||||
minStack: minStack(6, 1),
|
||||
maxStack: maxStack(6, 1),
|
||||
memorySize: memoryDelegateCall,
|
||||
@ -241,7 +268,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
EXP: {
|
||||
execute: opExp,
|
||||
dynamicGas: gasExp,
|
||||
dynamicGas: gasExpFrontier,
|
||||
minStack: minStack(2, 1),
|
||||
maxStack: maxStack(2, 1),
|
||||
valid: true,
|
||||
@ -332,6 +359,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
SHA3: {
|
||||
execute: opSha3,
|
||||
constantGas: params.Sha3Gas,
|
||||
dynamicGas: gasSha3,
|
||||
minStack: minStack(2, 1),
|
||||
maxStack: maxStack(2, 1),
|
||||
@ -347,7 +375,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
BALANCE: {
|
||||
execute: opBalance,
|
||||
dynamicGas: gasBalance,
|
||||
constantGas: params.BalanceGasFrontier,
|
||||
minStack: minStack(1, 1),
|
||||
maxStack: maxStack(1, 1),
|
||||
valid: true,
|
||||
@ -389,6 +417,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
CALLDATACOPY: {
|
||||
execute: opCallDataCopy,
|
||||
constantGas: GasFastestStep,
|
||||
dynamicGas: gasCallDataCopy,
|
||||
minStack: minStack(3, 0),
|
||||
maxStack: maxStack(3, 0),
|
||||
@ -404,6 +433,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
CODECOPY: {
|
||||
execute: opCodeCopy,
|
||||
constantGas: GasFastestStep,
|
||||
dynamicGas: gasCodeCopy,
|
||||
minStack: minStack(3, 0),
|
||||
maxStack: maxStack(3, 0),
|
||||
@ -419,13 +449,14 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
EXTCODESIZE: {
|
||||
execute: opExtCodeSize,
|
||||
dynamicGas: gasExtCodeSize,
|
||||
constantGas: params.ExtcodeSizeGasFrontier,
|
||||
minStack: minStack(1, 1),
|
||||
maxStack: maxStack(1, 1),
|
||||
valid: true,
|
||||
},
|
||||
EXTCODECOPY: {
|
||||
execute: opExtCodeCopy,
|
||||
constantGas: params.ExtcodeCopyBaseFrontier,
|
||||
dynamicGas: gasExtCodeCopy,
|
||||
minStack: minStack(4, 0),
|
||||
maxStack: maxStack(4, 0),
|
||||
@ -483,6 +514,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
MLOAD: {
|
||||
execute: opMload,
|
||||
constantGas: GasFastestStep,
|
||||
dynamicGas: gasMLoad,
|
||||
minStack: minStack(1, 1),
|
||||
maxStack: maxStack(1, 1),
|
||||
@ -491,6 +523,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
MSTORE: {
|
||||
execute: opMstore,
|
||||
constantGas: GasFastestStep,
|
||||
dynamicGas: gasMStore,
|
||||
minStack: minStack(2, 0),
|
||||
maxStack: maxStack(2, 0),
|
||||
@ -499,6 +532,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
MSTORE8: {
|
||||
execute: opMstore8,
|
||||
constantGas: GasFastestStep,
|
||||
dynamicGas: gasMStore8,
|
||||
memorySize: memoryMStore8,
|
||||
minStack: minStack(2, 0),
|
||||
@ -508,7 +542,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
SLOAD: {
|
||||
execute: opSload,
|
||||
dynamicGas: gasSLoad,
|
||||
constantGas: params.SloadGasFrontier,
|
||||
minStack: minStack(1, 1),
|
||||
maxStack: maxStack(1, 1),
|
||||
valid: true,
|
||||
@ -1060,6 +1094,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
CREATE: {
|
||||
execute: opCreate,
|
||||
constantGas: params.CreateGas,
|
||||
dynamicGas: gasCreate,
|
||||
minStack: minStack(3, 1),
|
||||
maxStack: maxStack(3, 1),
|
||||
@ -1070,6 +1105,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
CALL: {
|
||||
execute: opCall,
|
||||
constantGas: params.CallGasFrontier,
|
||||
dynamicGas: gasCall,
|
||||
minStack: minStack(7, 1),
|
||||
maxStack: maxStack(7, 1),
|
||||
@ -1079,6 +1115,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
CALLCODE: {
|
||||
execute: opCallCode,
|
||||
constantGas: params.CallGasFrontier,
|
||||
dynamicGas: gasCallCode,
|
||||
minStack: minStack(7, 1),
|
||||
maxStack: maxStack(7, 1),
|
||||
@ -1097,7 +1134,7 @@ func newFrontierInstructionSet() [256]operation {
|
||||
},
|
||||
SELFDESTRUCT: {
|
||||
execute: opSuicide,
|
||||
dynamicGas: gasSuicide,
|
||||
dynamicGas: gasSelfdestruct,
|
||||
minStack: minStack(1, 0),
|
||||
maxStack: maxStack(1, 0),
|
||||
halts: true,
|
||||
|
||||
@ -386,25 +386,6 @@ func (c *ChainConfig) IsEWASM(num *big.Int) bool {
|
||||
return isForked(c.EWASMBlock, num)
|
||||
}
|
||||
|
||||
// GasTable returns the gas table corresponding to the current phase (homestead or homestead reprice).
|
||||
//
|
||||
// The returned GasTable's fields shouldn't, under any circumstances, be changed.
|
||||
func (c *ChainConfig) GasTable(num *big.Int) GasTable {
|
||||
if num == nil {
|
||||
return GasTableHomestead
|
||||
}
|
||||
switch {
|
||||
case c.IsConstantinople(num):
|
||||
return GasTableConstantinople
|
||||
case c.IsEIP158(num):
|
||||
return GasTableEIP158
|
||||
case c.IsEIP150(num):
|
||||
return GasTableEIP150
|
||||
default:
|
||||
return GasTableHomestead
|
||||
}
|
||||
}
|
||||
|
||||
// CheckCompatible checks whether scheduled fork transitions have been imported
|
||||
// with a mismatching chain configuration.
|
||||
func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError {
|
||||
|
||||
@ -1,93 +0,0 @@
|
||||
// Copyright 2016 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 params
|
||||
|
||||
// GasTable organizes gas prices for different ethereum phases.
|
||||
type GasTable struct {
|
||||
ExtcodeSize uint64
|
||||
ExtcodeCopy uint64
|
||||
ExtcodeHash uint64
|
||||
Balance uint64
|
||||
SLoad uint64
|
||||
Calls uint64
|
||||
Suicide uint64
|
||||
|
||||
ExpByte uint64
|
||||
|
||||
// CreateBySuicide occurs when the
|
||||
// refunded account is one that does
|
||||
// not exist. This logic is similar
|
||||
// to call. May be left nil. Nil means
|
||||
// not charged.
|
||||
CreateBySuicide uint64
|
||||
}
|
||||
|
||||
// Variables containing gas prices for different ethereum phases.
|
||||
var (
|
||||
// GasTableHomestead contain the gas prices for
|
||||
// the homestead phase.
|
||||
GasTableHomestead = GasTable{
|
||||
ExtcodeSize: 20,
|
||||
ExtcodeCopy: 20,
|
||||
Balance: 20,
|
||||
SLoad: 50,
|
||||
Calls: 40,
|
||||
Suicide: 0,
|
||||
ExpByte: 10,
|
||||
}
|
||||
|
||||
// GasTableEIP150 contain the gas re-prices for
|
||||
// the EIP150 phase.
|
||||
GasTableEIP150 = GasTable{
|
||||
ExtcodeSize: 700,
|
||||
ExtcodeCopy: 700,
|
||||
Balance: 400,
|
||||
SLoad: 200,
|
||||
Calls: 700,
|
||||
Suicide: 5000,
|
||||
ExpByte: 10,
|
||||
|
||||
CreateBySuicide: 25000,
|
||||
}
|
||||
// GasTableEIP158 contain the gas re-prices for
|
||||
// the EIP155/EIP158 phase.
|
||||
GasTableEIP158 = GasTable{
|
||||
ExtcodeSize: 700,
|
||||
ExtcodeCopy: 700,
|
||||
Balance: 400,
|
||||
SLoad: 200,
|
||||
Calls: 700,
|
||||
Suicide: 5000,
|
||||
ExpByte: 50,
|
||||
|
||||
CreateBySuicide: 25000,
|
||||
}
|
||||
// GasTableConstantinople contain the gas re-prices for
|
||||
// the constantinople phase.
|
||||
GasTableConstantinople = GasTable{
|
||||
ExtcodeSize: 700,
|
||||
ExtcodeCopy: 700,
|
||||
ExtcodeHash: 400,
|
||||
Balance: 400,
|
||||
SLoad: 200,
|
||||
Calls: 700,
|
||||
Suicide: 5000,
|
||||
ExpByte: 50,
|
||||
|
||||
CreateBySuicide: 25000,
|
||||
}
|
||||
)
|
||||
@ -54,7 +54,7 @@ const (
|
||||
|
||||
JumpdestGas uint64 = 1 // Once per JUMPDEST operation.
|
||||
EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
|
||||
CallGas uint64 = 40 // Once per CALL operation & message call transaction.
|
||||
|
||||
CreateDataGas uint64 = 200 //
|
||||
CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack.
|
||||
ExpGas uint64 = 10 // Once per EXP instruction
|
||||
@ -65,10 +65,36 @@ const (
|
||||
LogTopicGas uint64 = 375 // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
|
||||
CreateGas uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
|
||||
Create2Gas uint64 = 32000 // Once per CREATE2 operation
|
||||
SuicideRefundGas uint64 = 24000 // Refunded following a suicide operation.
|
||||
SelfdestructRefundGas uint64 = 24000 // Refunded following a selfdestruct operation.
|
||||
MemoryGas uint64 = 3 // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL.
|
||||
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.
|
||||
|
||||
// These have been changed during the course of the chain
|
||||
CallGasFrontier uint64 = 40 // Once per CALL operation & message call transaction.
|
||||
CallGasEIP150 uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
|
||||
BalanceGasFrontier uint64 = 20 // The cost of a BALANCE operation
|
||||
BalanceGasEIP150 uint64 = 400 // The cost of a BALANCE operation after Tangerine
|
||||
ExtcodeSizeGasFrontier uint64 = 20 // Cost of EXTCODESIZE before EIP 150 (Tangerine)
|
||||
ExtcodeSizeGasEIP150 uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
|
||||
SloadGasFrontier uint64 = 50
|
||||
SloadGasEIP150 uint64 = 200
|
||||
ExtcodeHashGas uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
|
||||
SelfdestructGasEIP150 uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)
|
||||
|
||||
// EXP has a dynamic portion depending on the size of the exponent
|
||||
ExpByteFrontier uint64 = 10 // was set to 10 in Frontier
|
||||
ExpByteEIP158 uint64 = 50 // was raised to 50 during Eip158 (Spurious Dragon)
|
||||
|
||||
// Extcodecopy has a dynamic AND a static cost. This represents only the
|
||||
// static portion of the gas. It was changed during EIP 150 (Tangerine)
|
||||
ExtcodeCopyBaseFrontier uint64 = 20
|
||||
ExtcodeCopyBaseEIP150 uint64 = 700
|
||||
|
||||
// CreateBySelfdestructGas is used when the refunded account is one that does
|
||||
// not exist. This logic is similar to call.
|
||||
// Introduced in Tangerine Whistle (Eip 150)
|
||||
CreateBySelfdestructGas uint64 = 25000
|
||||
|
||||
MaxCodeSize = 24576 // Maximum bytecode to permit for a contract
|
||||
|
||||
// Precompiled contract gas prices
|
||||
|
||||
Loading…
Reference in New Issue
Block a user