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core/vm: review concerns (param/method name changes)

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This commit is contained in:
Martin Holst Swende 2019-07-30 22:44:07 +02:00
parent 326b20e123
commit 0648c43247
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GPG key ID: 683B438C05A5DDF0
3 changed files with 43 additions and 45 deletions
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20
core/vm/gas_table.go
View file

@ -255,11 +255,11 @@ func gasExpFrontier(evm *EVM, contract *Contract, stack *Stack, mem *Memory, mem
return gas, nil
}
func gasExpEip158(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
func gasExpEIP158(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
expByteLen := uint64((stack.data[stack.len()-2].BitLen() + 7) / 8)
var (
gas = expByteLen * params.ExpByteEip158 // no overflow check required. Max is 256 * ExpByte gas
gas = expByteLen * params.ExpByteEIP158 // no overflow check required. Max is 256 * ExpByte gas
overflow bool
)
if gas, overflow = math.SafeAdd(gas, params.ExpGas); overflow {
@ -273,10 +273,8 @@ func gasCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize
gas uint64
transfersValue = stack.Back(2).Sign() != 0
address = common.BigToAddress(stack.Back(1))
eip158 = evm.chainRules.IsEIP158
eip150 = evm.chainRules.IsEIP150
)
if eip158 {
if evm.chainRules.IsEIP158 {
if transfersValue && evm.StateDB.Empty(address) {
gas += params.CallNewAccountGas
}
@ -295,7 +293,7 @@ func gasCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize
return 0, errGasUintOverflow
}
evm.callGasTemp, err = callGas(eip150, 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
}
@ -362,25 +360,25 @@ func gasStaticCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memo
return gas, nil
}
func gasSuicide(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.chainRules.IsEIP150 {
gas = params.SuicideGasEip150
gas = params.SelfdestructGasEIP150
var address = common.BigToAddress(stack.Back(0))
if evm.chainRules.IsEIP158 {
// if empty and transfers value
if evm.StateDB.Empty(address) && evm.StateDB.GetBalance(contract.Address()).Sign() != 0 {
gas += params.CreateBySuicideGas
gas += params.CreateBySelfdestructGas
}
} else if !evm.StateDB.Exist(address) {
gas += params.CreateBySuicideGas
gas += params.CreateBySelfdestructGas
}
}
if !evm.StateDB.HasSuicided(contract.Address()) {
evm.StateDB.AddRefund(params.SuicideRefundGas)
evm.StateDB.AddRefund(params.SelfdestructRefundGas)
}
return gas, nil
}

20
core/vm/jump_table.go
View file

@ -116,7 +116,7 @@ func newByzantiumInstructionSet() [256]operation {
instructionSet := newSpuriousDragonInstructionSet()
instructionSet[STATICCALL] = operation{
execute: opStaticCall,
constantGas: params.CallGasEip150,
constantGas: params.CallGasEIP150,
dynamicGas: gasStaticCall,
minStack: minStack(6, 1),
maxStack: maxStack(6, 1),
@ -156,7 +156,7 @@ func newByzantiumInstructionSet() [256]operation {
// EIP 158 a.k.a Spurious Dragon
func newSpuriousDragonInstructionSet() [256]operation {
instructionSet := newTangerineWhistleInstructionSet()
instructionSet[EXP].dynamicGas = gasExpEip158
instructionSet[EXP].dynamicGas = gasExpEIP158
return instructionSet
}
@ -164,13 +164,13 @@ func newSpuriousDragonInstructionSet() [256]operation {
// 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
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
}
@ -1134,7 +1134,7 @@ func newFrontierInstructionSet() [256]operation {
},
SELFDESTRUCT: {
execute: opSuicide,
dynamicGas: gasSuicide,
dynamicGas: gasSelfdestruct,
minStack: minStack(1, 0),
maxStack: maxStack(1, 0),
halts: true,

24
params/protocol_params.go
View file

@ -65,35 +65,35 @@ 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 (T.W)
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 Whistle
ExtcodeSizeGasFrontier uint64 = 20 // Cost of EXTCODESIZE before EIP 150 (T.W)
ExtcodeSizeGasEip150 uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (T.W)
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
SloadGasEIP150 uint64 = 200
ExtcodeHashGas uint64 = 400 // Cost of EXTCODEHASH (introduced in Constantinople)
SuicideGasEip150 uint64 = 5000 // Cost of SELFDESTRUCT post T.W
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)
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 Whistle)
// static portion of the gas. It was changed during EIP 150 (Tangerine)
ExtcodeCopyBaseFrontier uint64 = 20
ExtcodeCopyBaseEip150 uint64 = 700
ExtcodeCopyBaseEIP150 uint64 = 700
// CreateBySuicide occurs when the refunded account is one that does
// 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)
CreateBySuicideGas uint64 = 25000
CreateBySelfdestructGas uint64 = 25000
MaxCodeSize = 24576 // Maximum bytecode to permit for a contract