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Merged
merged 1 commit into from
Aug 11, 2023
Merged

simulators/ethereum/engine: Pre-deploy EIP-4788 #820

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9 changes: 5 additions & 4 deletions simulators/ethereum/engine/suites/cancun/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -92,10 +92,11 @@ func (bs *CancunBaseSpec) GetGenesis() *core.Genesis {
}
}

// Add 1 wei to the 4788 stateful precompile so its account is not deleted at the end of
// block execution.
genesis.Alloc[common.BigToAddress(new(big.Int).SetUint64(uint64(HISTORY_STORAGE_ADDRESS)))] = core.GenesisAccount{
Balance: big.NewInt(1),
// Add bytecode pre deploy to the EIP-4788 address.
genesis.Alloc[HISTORY_STORAGE_ADDRESS] = core.GenesisAccount{
Balance: common.Big0,
Nonce: 1,
Code: common.Hex2Bytes("0x3373fffffffffffffffffffffffffffffffffffffffe14604457602036146024575f5ffd5b620180005f350680545f35146037575f5ffd5b6201800001545f5260205ff35b42620180004206555f3562018000420662018000015500"),
}

return genesis
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2 changes: 1 addition & 1 deletion simulators/ethereum/engine/suites/cancun/steps.go
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Expand Up @@ -258,7 +258,7 @@ func VerifyBeaconRootStorage(ctx context.Context, testEngine *test.TestEngineCli
// Read the storage keys from the stateful precompile that stores the beacon roots and verify
// that the beacon root is the same as the one in the payload
blockNumber := new(big.Int).SetUint64(payload.Number)
precompileAddress := common.BytesToAddress([]byte{HISTORY_STORAGE_ADDRESS})
precompileAddress := HISTORY_STORAGE_ADDRESS

timestampKey, beaconRootKey := BeaconRootStorageIndexes(payload.Timestamp)

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2 changes: 1 addition & 1 deletion simulators/ethereum/engine/suites/cancun/tests.go
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Expand Up @@ -31,7 +31,7 @@ var (
BLOB_COMMITMENT_VERSION_KZG = byte(0x01)

// EIP 4788 specific constants
HISTORY_STORAGE_ADDRESS = uint8(0x0B)
HISTORY_STORAGE_ADDRESS = common.HexToAddress("0x000000000000000000000000000000000000000b")
HISTORICAL_ROOTS_MODULUS = uint64(98304)

// Engine API errors
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