package core import ( "encoding/json" "fmt" "math/big" "os" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/params" ) // GenesisBlock creates a genesis block with the given nonce. func GenesisBlock(nonce uint64, db common.Database) *types.Block { var accounts map[string]struct { Balance string Code string } err := json.Unmarshal(GenesisAccounts, &accounts) if err != nil { fmt.Println("unable to decode genesis json data:", err) os.Exit(1) } statedb := state.New(common.Hash{}, db) for addr, account := range accounts { codedAddr := common.Hex2Bytes(addr) accountState := statedb.CreateAccount(common.BytesToAddress(codedAddr)) accountState.SetBalance(common.Big(account.Balance)) accountState.SetCode(common.FromHex(account.Code)) statedb.UpdateStateObject(accountState) } statedb.Sync() block := types.NewBlock(&types.Header{ Difficulty: params.GenesisDifficulty, GasLimit: params.GenesisGasLimit, Nonce: types.EncodeNonce(nonce), Root: statedb.Root(), }, nil, nil, nil) block.Td = params.GenesisDifficulty return block } var GenesisAccounts = []byte(`{ "0000000000000000000000000000000000000001": {"balance": "1"}, "0000000000000000000000000000000000000002": {"balance": "1"}, "0000000000000000000000000000000000000003": {"balance": "1"}, "0000000000000000000000000000000000000004": {"balance": "1"}, "dbdbdb2cbd23b783741e8d7fcf51e459b497e4a6": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "e4157b34ea9615cfbde6b4fda419828124b70c78": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "b9c015918bdaba24b4ff057a92a3873d6eb201be": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "6c386a4b26f73c802f34673f7248bb118f97424a": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "cd2a3d9f938e13cd947ec05abc7fe734df8dd826": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "2ef47100e0787b915105fd5e3f4ff6752079d5cb": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "e6716f9544a56c530d868e4bfbacb172315bdead": {"balance": "1606938044258990275541962092341162602522202993782792835301376"}, "1a26338f0d905e295fccb71fa9ea849ffa12aaf4": {"balance": "1606938044258990275541962092341162602522202993782792835301376"} }`) // GenesisBlockForTesting creates a block in which addr has the given wei balance. // The state trie of the block is written to db. func GenesisBlockForTesting(db common.Database, addr common.Address, balance *big.Int) *types.Block { statedb := state.New(common.Hash{}, db) obj := statedb.GetOrNewStateObject(addr) obj.SetBalance(balance) statedb.SyncObjects() statedb.Sync() block := types.NewBlock(&types.Header{ Difficulty: params.GenesisDifficulty, GasLimit: params.GenesisGasLimit, Root: statedb.Root(), }, nil, nil, nil) block.Td = params.GenesisDifficulty return block }