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core: implement EIP-3651, warm coinbase (#25819)

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Implements EIP-3651, "Warm Coinbase", for Shanghai hardfork. Specification: https://eips.ethereum.org/EIPS/eip-3651.
This commit is contained in:
Marius van der Wijden 2022-11-22 22:39:52 +01:00 committed by GitHub
parent 64dccf7aa4
commit ec2ec2d08e
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 128 additions and 14 deletions
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108
core/blockchain_test.go
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@ -4187,3 +4187,111 @@ func TestTransientStorageReset(t *testing.T) {
t.Fatalf("Unexpected dirty storage slot")
}
}
func TestEIP3651(t *testing.T) {
var (
aa = common.HexToAddress("0x000000000000000000000000000000000000aaaa")
bb = common.HexToAddress("0x000000000000000000000000000000000000bbbb")
engine = ethash.NewFaker()
// A sender who makes transactions, has some funds
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
key2, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
addr1 = crypto.PubkeyToAddress(key1.PublicKey)
addr2 = crypto.PubkeyToAddress(key2.PublicKey)
funds = new(big.Int).Mul(common.Big1, big.NewInt(params.Ether))
gspec = &Genesis{
Config: params.AllEthashProtocolChanges,
Alloc: GenesisAlloc{
addr1: {Balance: funds},
addr2: {Balance: funds},
// The address 0xAAAA sloads 0x00 and 0x01
aa: {
Code: []byte{
byte(vm.PC),
byte(vm.PC),
byte(vm.SLOAD),
byte(vm.SLOAD),
},
Nonce: 0,
Balance: big.NewInt(0),
},
// The address 0xBBBB calls 0xAAAA
bb: {
Code: []byte{
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.DUP1), // out insize
byte(vm.DUP1), // in offset
byte(vm.PUSH2), // address
byte(0xaa),
byte(0xaa),
byte(vm.GAS), // gas
byte(vm.DELEGATECALL),
},
Nonce: 0,
Balance: big.NewInt(0),
},
},
}
)
gspec.Config.BerlinBlock = common.Big0
gspec.Config.LondonBlock = common.Big0
gspec.Config.ShanghaiBlock = common.Big0
signer := types.LatestSigner(gspec.Config)
_, blocks, _ := GenerateChainWithGenesis(gspec, engine, 1, func(i int, b *BlockGen) {
b.SetCoinbase(aa)
// One transaction to Coinbase
txdata := &types.DynamicFeeTx{
ChainID: gspec.Config.ChainID,
Nonce: 0,
To: &bb,
Gas: 500000,
GasFeeCap: newGwei(5),
GasTipCap: big.NewInt(2),
AccessList: nil,
Data: []byte{},
}
tx := types.NewTx(txdata)
tx, _ = types.SignTx(tx, signer, key1)
b.AddTx(tx)
})
chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{Tracer: logger.NewMarkdownLogger(&logger.Config{}, os.Stderr)}, nil, nil)
if err != nil {
t.Fatalf("failed to create tester chain: %v", err)
}
if n, err := chain.InsertChain(blocks); err != nil {
t.Fatalf("block %d: failed to insert into chain: %v", n, err)
}
block := chain.GetBlockByNumber(1)
// 1+2: Ensure EIP-1559 access lists are accounted for via gas usage.
innerGas := vm.GasQuickStep*2 + params.ColdSloadCostEIP2929*2
expectedGas := params.TxGas + 5*vm.GasFastestStep + vm.GasQuickStep + 100 + innerGas // 100 because 0xaaaa is in access list
if block.GasUsed() != expectedGas {
t.Fatalf("incorrect amount of gas spent: expected %d, got %d", expectedGas, block.GasUsed())
}
state, _ := chain.State()
// 3: Ensure that miner received only the tx's tip.
actual := state.GetBalance(block.Coinbase())
expected := new(big.Int).Add(
new(big.Int).SetUint64(block.GasUsed()*block.Transactions()[0].GasTipCap().Uint64()),
ethash.ConstantinopleBlockReward,
)
if actual.Cmp(expected) != 0 {
t.Fatalf("miner balance incorrect: expected %d, got %d", expected, actual)
}
// 4: Ensure the tx sender paid for the gasUsed * (tip + block baseFee).
actual = new(big.Int).Sub(funds, state.GetBalance(addr1))
expected = new(big.Int).SetUint64(block.GasUsed() * (block.Transactions()[0].GasTipCap().Uint64() + block.BaseFee().Uint64()))
if actual.Cmp(expected) != 0 {
t.Fatalf("sender balance incorrect: expected %d, got %d", expected, actual)
}
}

22
core/state/statedb.go
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@ -1067,26 +1067,32 @@ func (s *StateDB) Commit(deleteEmptyObjects bool) (common.Hash, error) {
// - Add the contents of the optional tx access list (2930)
//
// Potential EIPs:
// - Reset transient storage(1153)
func (s *StateDB) Prepare(rules params.Rules, sender common.Address, dst *common.Address, precompiles []common.Address, list types.AccessList) {
// - Reset access list (Berlin)
// - Add coinbase to access list (EIP-3651)
// - Reset transient storage (EIP-1153)
func (s *StateDB) Prepare(rules params.Rules, sender, coinbase common.Address, dst *common.Address, precompiles []common.Address, list types.AccessList) {
if rules.IsBerlin {
// Clear out any leftover from previous executions
s.accessList = newAccessList()
al := newAccessList()
s.accessList = al
s.AddAddressToAccessList(sender)
al.AddAddress(sender)
if dst != nil {
s.AddAddressToAccessList(*dst)
al.AddAddress(*dst)
// If it's a create-tx, the destination will be added inside evm.create
}
for _, addr := range precompiles {
s.AddAddressToAccessList(addr)
al.AddAddress(addr)
}
for _, el := range list {
s.AddAddressToAccessList(el.Address)
al.AddAddress(el.Address)
for _, key := range el.StorageKeys {
s.AddSlotToAccessList(el.Address, key)
al.AddSlot(el.Address, key)
}
}
if rules.IsShanghai { // EIP-3651: warm coinbase
al.AddAddress(coinbase)
}
}
// Reset transient storage at the beginning of transaction execution
s.transientStorage = newTransientStorage()

2
core/state_transition.go
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@ -322,7 +322,7 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
// Execute the preparatory steps for state transition which includes:
// - prepare accessList(post-berlin)
// - reset transient storage(eip 1153)
st.state.Prepare(rules, msg.From(), msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
st.state.Prepare(rules, msg.From(), st.evm.Context.Coinbase, msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
var (
ret []byte

2
core/vm/interface.go
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@ -69,7 +69,7 @@ type StateDB interface {
// AddSlotToAccessList adds the given (address,slot) to the access list. This operation is safe to perform
// even if the feature/fork is not active yet
AddSlotToAccessList(addr common.Address, slot common.Hash)
Prepare(rules params.Rules, sender common.Address, dest *common.Address, precompiles []common.Address, txAccesses types.AccessList)
Prepare(rules params.Rules, sender, coinbase common.Address, dest *common.Address, precompiles []common.Address, txAccesses types.AccessList)
RevertToSnapshot(int)
Snapshot() int

6
core/vm/runtime/runtime.go
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@ -122,7 +122,7 @@ func Execute(code, input []byte, cfg *Config) ([]byte, *state.StateDB, error) {
// Execute the preparatory steps for state transition which includes:
// - prepare accessList(post-berlin)
// - reset transient storage(eip 1153)
cfg.State.Prepare(rules, cfg.Origin, &address, vm.ActivePrecompiles(rules), nil)
cfg.State.Prepare(rules, cfg.Origin, cfg.Coinbase, &address, vm.ActivePrecompiles(rules), nil)
cfg.State.CreateAccount(address)
// set the receiver's (the executing contract) code for execution.
@ -156,7 +156,7 @@ func Create(input []byte, cfg *Config) ([]byte, common.Address, uint64, error) {
// Execute the preparatory steps for state transition which includes:
// - prepare accessList(post-berlin)
// - reset transient storage(eip 1153)
cfg.State.Prepare(rules, cfg.Origin, nil, vm.ActivePrecompiles(rules), nil)
cfg.State.Prepare(rules, cfg.Origin, cfg.Coinbase, nil, vm.ActivePrecompiles(rules), nil)
// Call the code with the given configuration.
code, address, leftOverGas, err := vmenv.Create(
@ -185,7 +185,7 @@ func Call(address common.Address, input []byte, cfg *Config) ([]byte, uint64, er
// Execute the preparatory steps for state transition which includes:
// - prepare accessList(post-berlin)
// - reset transient storage(eip 1153)
statedb.Prepare(rules, cfg.Origin, &address, vm.ActivePrecompiles(rules), nil)
statedb.Prepare(rules, cfg.Origin, cfg.Coinbase, &address, vm.ActivePrecompiles(rules), nil)
// Call the code with the given configuration.
ret, leftOverGas, err := vmenv.Call(

2
tests/state_test.go
View File

@ -241,7 +241,7 @@ func runBenchmark(b *testing.B, t *StateTest) {
b.ResetTimer()
for n := 0; n < b.N; n++ {
snapshot := statedb.Snapshot()
statedb.Prepare(rules, msg.From(), msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
statedb.Prepare(rules, msg.From(), context.Coinbase, msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
b.StartTimer()
start := time.Now()