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core/vm, params: refactor chain configuration (#19735)

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* 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
2019-08-05 10:01:02 +02:00
committed by Péter Szilágyi
parent a7de796840
commit aa6005b469
9 changed files with 342 additions and 518 deletions
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19
params/config.go
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@ -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 {

93
params/gas_table.go
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@ -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,
}
)

58
params/protocol_params.go
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@ -52,22 +52,48 @@ const (
NetSstoreResetRefund uint64 = 4800 // Once per SSTORE operation for resetting to the original non-zero value
NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value
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
LogGas uint64 = 375 // Per LOG* operation.
CopyGas uint64 = 3 //
StackLimit uint64 = 1024 // Maximum size of VM stack allowed.
TierStepGas uint64 = 0 // Once per operation, for a selection of them.
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.
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.
JumpdestGas uint64 = 1 // Once per JUMPDEST operation.
EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
CreateDataGas uint64 = 200 //
CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack.
ExpGas uint64 = 10 // Once per EXP instruction
LogGas uint64 = 375 // Per LOG* operation.
CopyGas uint64 = 3 //
StackLimit uint64 = 1024 // Maximum size of VM stack allowed.
TierStepGas uint64 = 0 // Once per operation, for a selection of them.
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
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