all: move genesis initialization to blockchain

accounts/abi/bind/backends/simulated.go

@@ -79,7 +79,7 @@ type SimulatedBackend struct {
 func NewSimulatedBackendWithDatabase(database ethdb.Database, alloc core.GenesisAlloc, gasLimit uint64) *SimulatedBackend {
 	genesis := core.Genesis{Config: params.AllEthashProtocolChanges, GasLimit: gasLimit, Alloc: alloc}
 	genesis.MustCommit(database)
-	blockchain, _ := core.NewBlockChain(database, nil, genesis.Config, ethash.NewFaker(), vm.Config{}, nil, nil)
+	blockchain, _ := core.NewBlockChain(database, nil, &genesis, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
 
 	backend := &SimulatedBackend{
 		database:   database,

cmd/utils/flags.go

@@ -33,7 +33,6 @@ import (
 	"github.com/ethereum/go-ethereum/accounts/keystore"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/fdlimit"
-	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
@@ -2142,20 +2141,20 @@ func MakeGenesis(ctx *cli.Context) *core.Genesis {
 }
 
 // MakeChain creates a chain manager from set command line flags.
-func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chainDb ethdb.Database) {
-	var err error
-	chainDb = MakeChainDatabase(ctx, stack, false) // TODO(rjl493456442) support read-only database
-	config, _, err := core.SetupGenesisBlock(chainDb, MakeGenesis(ctx))
+func MakeChain(ctx *cli.Context, stack *node.Node) (*core.BlockChain, ethdb.Database) {
+	var (
+		gspec   = MakeGenesis(ctx)
+		chainDb = MakeChainDatabase(ctx, stack, false) // TODO(rjl493456442) support read-only database
+	)
+	cliqueConfig, err := core.LoadCliqueConfig(chainDb, gspec)
 	if err != nil {
 		Fatalf("%v", err)
 	}
-
-	var engine consensus.Engine
-	ethashConf := ethconfig.Defaults.Ethash
+	ethashConfig := ethconfig.Defaults.Ethash
 	if ctx.Bool(FakePoWFlag.Name) {
-		ethashConf.PowMode = ethash.ModeFake
+		ethashConfig.PowMode = ethash.ModeFake
 	}
-	engine = ethconfig.CreateConsensusEngine(stack, config, &ethashConf, nil, false, chainDb)
+	engine := ethconfig.CreateConsensusEngine(stack, &ethashConfig, cliqueConfig, nil, false, chainDb)
 	if gcmode := ctx.String(GCModeFlag.Name); gcmode != "full" && gcmode != "archive" {
 		Fatalf("--%s must be either 'full' or 'archive'", GCModeFlag.Name)
 	}
@@ -2185,7 +2184,7 @@ func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chai
 
 	// TODO(rjl493456442) disable snapshot generation/wiping if the chain is read only.
 	// Disable transaction indexing/unindexing by default.
-	chain, err = core.NewBlockChain(chainDb, cache, config, engine, vmcfg, nil, nil)
+	chain, err := core.NewBlockChain(chainDb, cache, gspec, nil, engine, vmcfg, nil, nil)
 	if err != nil {
 		Fatalf("Can't create BlockChain: %v", err)
 	}

consensus/clique/clique_test.go

@@ -45,6 +45,7 @@ func TestReimportMirroredState(t *testing.T) {
 		signer = new(types.HomesteadSigner)
 	)
 	genspec := &core.Genesis{
+		Config:    params.AllCliqueProtocolChanges,
 		ExtraData: make([]byte, extraVanity+common.AddressLength+extraSeal),
 		Alloc: map[common.Address]core.GenesisAccount{
 			addr: {Balance: big.NewInt(10000000000000000)},
@@ -55,7 +56,7 @@ func TestReimportMirroredState(t *testing.T) {
 	genesis := genspec.MustCommit(db)
 
 	// Generate a batch of blocks, each properly signed
-	chain, _ := core.NewBlockChain(db, nil, params.AllCliqueProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, _ := core.NewBlockChain(db, nil, genspec, nil, engine, vm.Config{}, nil, nil)
 	defer chain.Stop()
 
 	blocks, _ := core.GenerateChain(params.AllCliqueProtocolChanges, genesis, engine, db, 3, func(i int, block *core.BlockGen) {
@@ -89,7 +90,7 @@ func TestReimportMirroredState(t *testing.T) {
 	db = rawdb.NewMemoryDatabase()
 	genspec.MustCommit(db)
 
-	chain, _ = core.NewBlockChain(db, nil, params.AllCliqueProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, _ = core.NewBlockChain(db, nil, genspec, nil, engine, vm.Config{}, nil, nil)
 	defer chain.Stop()
 
 	if _, err := chain.InsertChain(blocks[:2]); err != nil {
@@ -102,7 +103,7 @@ func TestReimportMirroredState(t *testing.T) {
 	// Simulate a crash by creating a new chain on top of the database, without
 	// flushing the dirty states out. Insert the last block, triggering a sidechain
 	// reimport.
-	chain, _ = core.NewBlockChain(db, nil, params.AllCliqueProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, _ = core.NewBlockChain(db, nil, genspec, nil, engine, vm.Config{}, nil, nil)
 	defer chain.Stop()
 
 	if _, err := chain.InsertChain(blocks[2:]); err != nil {

consensus/clique/snapshot_test.go

@@ -411,6 +411,7 @@ func TestClique(t *testing.T) {
 			Period: 1,
 			Epoch:  tt.epoch,
 		}
+		genesis.Config = &config
 		engine := New(config.Clique, db)
 		engine.fakeDiff = true
 
@@ -450,7 +451,7 @@ func TestClique(t *testing.T) {
 			batches[len(batches)-1] = append(batches[len(batches)-1], block)
 		}
 		// Pass all the headers through clique and ensure tallying succeeds
-		chain, err := core.NewBlockChain(db, nil, &config, engine, vm.Config{}, nil, nil)
+		chain, err := core.NewBlockChain(db, nil, genesis, nil, engine, vm.Config{}, nil, nil)
 		if err != nil {
 			t.Errorf("test %d: failed to create test chain: %v", i, err)
 			continue

core/bench_test.go

@@ -196,7 +196,7 @@ func benchInsertChain(b *testing.B, disk bool, gen func(int, *BlockGen)) {
 
 	// Time the insertion of the new chain.
 	// State and blocks are stored in the same DB.
-	chainman, _ := NewBlockChain(db, nil, gspec.Config, ethash.NewFaker(), vm.Config{}, nil, nil)
+	chainman, _ := NewBlockChain(db, nil, &gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
 	defer chainman.Stop()
 	b.ReportAllocs()
 	b.ResetTimer()
@@ -262,6 +262,11 @@ func makeChainForBench(db ethdb.Database, full bool, count uint64) {
 		rawdb.WriteCanonicalHash(db, hash, n)
 		rawdb.WriteTd(db, hash, n, big.NewInt(int64(n+1)))
 
+		if n == 0 {
+			rawdb.WriteChainConfig(db, hash, params.AllEthashProtocolChanges)
+		}
+		rawdb.WriteHeadHeaderHash(db, hash)
+
 		if full || n == 0 {
 			block := types.NewBlockWithHeader(header)
 			rawdb.WriteBody(db, hash, n, block.Body())
@@ -303,7 +308,7 @@ func benchReadChain(b *testing.B, full bool, count uint64) {
 		if err != nil {
 			b.Fatalf("error opening database at %v: %v", dir, err)
 		}
-		chain, err := NewBlockChain(db, &cacheConfig, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil)
+		chain, err := NewBlockChain(db, &cacheConfig, nil, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
 		if err != nil {
 			b.Fatalf("error creating chain: %v", err)
 		}

core/block_validator_test.go

@@ -49,7 +49,7 @@ func TestHeaderVerification(t *testing.T) {
 		headers[i] = block.Header()
 	}
 	// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
-	chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil)
+	chain, _ := NewBlockChain(testdb, nil, gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
 	defer chain.Stop()
 
 	for i := 0; i < len(blocks); i++ {
@@ -89,20 +89,21 @@ func TestHeaderVerificationForMergingEthash(t *testing.T) { testHeaderVerificati
 // Tests the verification for eth1/2 merging, including pre-merge and post-merge
 func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
 	var (
-		testdb      = rawdb.NewMemoryDatabase()
-		preBlocks   []*types.Block
-		postBlocks  []*types.Block
-		runEngine   consensus.Engine
-		chainConfig *params.ChainConfig
-		merger      = consensus.NewMerger(rawdb.NewMemoryDatabase())
+		testdb     = rawdb.NewMemoryDatabase()
+		preBlocks  []*types.Block
+		postBlocks []*types.Block
+		runEngine  consensus.Engine
+		genspec    *Genesis
+		merger     = consensus.NewMerger(rawdb.NewMemoryDatabase())
 	)
 	if isClique {
 		var (
 			key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
 			addr   = crypto.PubkeyToAddress(key.PublicKey)
 			engine = clique.New(params.AllCliqueProtocolChanges.Clique, testdb)
 		)
-		genspec := &Genesis{
+		genspec = &Genesis{
+			Config:    params.AllCliqueProtocolChanges,
 			ExtraData: make([]byte, 32+common.AddressLength+crypto.SignatureLength),
 			Alloc: map[common.Address]GenesisAccount{
 				addr: {Balance: big.NewInt(1)},
@@ -133,11 +134,11 @@ func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
 		config := *params.AllCliqueProtocolChanges
 		config.TerminalTotalDifficulty = big.NewInt(int64(td))
 		postBlocks, _ = GenerateChain(&config, preBlocks[len(preBlocks)-1], genEngine, testdb, 8, nil)
-		chainConfig = &config
 		runEngine = beacon.New(engine)
+		genspec.Config = &config
 	} else {
-		gspec := &Genesis{Config: params.TestChainConfig}
-		genesis := gspec.MustCommit(testdb)
+		genspec = &Genesis{Config: params.TestChainConfig}
+		genesis := genspec.MustCommit(testdb)
 		genEngine := beacon.New(ethash.NewFaker())
 
 		preBlocks, _ = GenerateChain(params.TestChainConfig, genesis, genEngine, testdb, 8, nil)
@@ -150,8 +151,8 @@ func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
 		config.TerminalTotalDifficulty = big.NewInt(int64(td))
 		postBlocks, _ = GenerateChain(params.TestChainConfig, preBlocks[len(preBlocks)-1], genEngine, testdb, 8, nil)
 
-		chainConfig = &config
 		runEngine = beacon.New(ethash.NewFaker())
+		genspec.Config = &config
 	}
 
 	preHeaders := make([]*types.Header, len(preBlocks))
@@ -169,7 +170,7 @@ func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
 		t.Logf("Log header after the merging %d: %v", block.NumberU64(), string(blob))
 	}
 	// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
-	chain, _ := NewBlockChain(testdb, nil, chainConfig, runEngine, vm.Config{}, nil, nil)
+	chain, _ := NewBlockChain(testdb, nil, genspec, nil, runEngine, vm.Config{}, nil, nil)
 	defer chain.Stop()
 
 	// Verify the blocks before the merging
@@ -280,11 +281,11 @@ func testHeaderConcurrentVerification(t *testing.T, threads int) {
 		var results <-chan error
 
 		if valid {
-			chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFaker(), vm.Config{}, nil, nil)
+			chain, _ := NewBlockChain(testdb, nil, gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
 			_, results = chain.engine.VerifyHeaders(chain, headers, seals)
 			chain.Stop()
 		} else {
-			chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFakeFailer(uint64(len(headers)-1)), vm.Config{}, nil, nil)
+			chain, _ := NewBlockChain(testdb, nil, gspec, nil, ethash.NewFakeFailer(uint64(len(headers)-1)), vm.Config{}, nil, nil)
 			_, results = chain.engine.VerifyHeaders(chain, headers, seals)
 			chain.Stop()
 		}
@@ -347,7 +348,7 @@ func testHeaderConcurrentAbortion(t *testing.T, threads int) {
 	defer runtime.GOMAXPROCS(old)
 
 	// Start the verifications and immediately abort
-	chain, _ := NewBlockChain(testdb, nil, params.TestChainConfig, ethash.NewFakeDelayer(time.Millisecond), vm.Config{}, nil, nil)
+	chain, _ := NewBlockChain(testdb, nil, gspec, nil, ethash.NewFakeDelayer(time.Millisecond), vm.Config{}, nil, nil)
 	defer chain.Stop()
 
 	abort, results := chain.engine.VerifyHeaders(chain, headers, seals)

core/blockchain.go

@@ -23,6 +23,7 @@ import (
 	"io"
 	"math/big"
 	"sort"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -218,7 +219,7 @@ type BlockChain struct {
 // NewBlockChain returns a fully initialised block chain using information
 // available in the database. It initialises the default Ethereum Validator
 // and Processor.
-func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *params.ChainConfig, engine consensus.Engine, vmConfig vm.Config, shouldPreserve func(header *types.Header) bool, txLookupLimit *uint64) (*BlockChain, error) {
+func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, genesis *Genesis, overrides *ChainOverrides, engine consensus.Engine, vmConfig vm.Config, shouldPreserve func(header *types.Header) bool, txLookupLimit *uint64) (*BlockChain, error) {
 	if cacheConfig == nil {
 		cacheConfig = defaultCacheConfig
 	}
@@ -229,6 +230,21 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
 	txLookupCache, _ := lru.New(txLookupCacheLimit)
 	futureBlocks, _ := lru.New(maxFutureBlocks)
 
+	// Setup the genesis block, commit the provided genesis specification
+	// to database if the genesis block is not present yet, or load the
+	// stored one from database.
+	chainConfig, genesisHash, genesisErr := SetupGenesisBlockWithOverride(db, genesis, overrides)
+	if _, ok := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !ok {
+		return nil, genesisErr
+	}
+	log.Info("")
+	log.Info(strings.Repeat("-", 153))
+	for _, line := range strings.Split(chainConfig.String(), "\n") {
+		log.Info(line)
+	}
+	log.Info(strings.Repeat("-", 153))
+	log.Info("")
+
 	bc := &BlockChain{
 		chainConfig: chainConfig,
 		cacheConfig: cacheConfig,
@@ -409,6 +425,12 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
 			triedb.SaveCachePeriodically(bc.cacheConfig.TrieCleanJournal, bc.cacheConfig.TrieCleanRejournal, bc.quit)
 		}()
 	}
+	// Rewind the chain in case of an incompatible config upgrade.
+	if compat, ok := genesisErr.(*params.ConfigCompatError); ok {
+		log.Warn("Rewinding chain to upgrade configuration", "err", compat)
+		bc.SetHead(compat.RewindTo)
+		rawdb.WriteChainConfig(db, genesisHash, chainConfig)
+	}
 	return bc, nil
 }
 

core/blockchain_repair_test.go

@@ -1764,7 +1764,11 @@ func testRepair(t *testing.T, tt *rewindTest, snapshots bool) {
 
 	// Initialize a fresh chain
 	var (
-		genesis = (&Genesis{BaseFee: big.NewInt(params.InitialBaseFee)}).MustCommit(db)
+		gspec = &Genesis{
+			BaseFee: big.NewInt(params.InitialBaseFee),
+			Config:  params.AllEthashProtocolChanges,
+		}
+		genesis = gspec.MustCommit(db)
 		engine  = ethash.NewFullFaker()
 		config  = &CacheConfig{
 			TrieCleanLimit: 256,
@@ -1778,7 +1782,7 @@ func testRepair(t *testing.T, tt *rewindTest, snapshots bool) {
 		config.SnapshotLimit = 256
 		config.SnapshotWait = true
 	}
-	chain, err := NewBlockChain(db, config, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, err := NewBlockChain(db, config, gspec, nil, engine, vm.Config{}, nil, nil)
 	if err != nil {
 		t.Fatalf("Failed to create chain: %v", err)
 	}
@@ -1831,7 +1835,7 @@ func testRepair(t *testing.T, tt *rewindTest, snapshots bool) {
 	}
 	defer db.Close()
 
-	newChain, err := NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
+	newChain, err := NewBlockChain(db, nil, gspec, nil, engine, vm.Config{}, nil, nil)
 	if err != nil {
 		t.Fatalf("Failed to recreate chain: %v", err)
 	}
@@ -1888,7 +1892,11 @@ func TestIssue23496(t *testing.T) {
 
 	// Initialize a fresh chain
 	var (
-		genesis = (&Genesis{BaseFee: big.NewInt(params.InitialBaseFee)}).MustCommit(db)
+		gspec = &Genesis{
+			Config:  params.TestChainConfig,
+			BaseFee: big.NewInt(params.InitialBaseFee),
+		}
+		genesis = gspec.MustCommit(db)
 		engine  = ethash.NewFullFaker()
 		config  = &CacheConfig{
 			TrieCleanLimit: 256,
@@ -1898,7 +1906,7 @@ func TestIssue23496(t *testing.T) {
 			SnapshotWait:   true,
 		}
 	)
-	chain, err := NewBlockChain(db, config, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, err := NewBlockChain(db, config, gspec, nil, engine, vm.Config{}, nil, nil)
 	if err != nil {
 		t.Fatalf("Failed to create chain: %v", err)
 	}
@@ -1942,7 +1950,7 @@ func TestIssue23496(t *testing.T) {
 	}
 	defer db.Close()
 
-	chain, err = NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, err = NewBlockChain(db, nil, gspec, nil, engine, vm.Config{}, nil, nil)
 	if err != nil {
 		t.Fatalf("Failed to recreate chain: %v", err)
 	}

core/blockchain_sethead_test.go

@@ -1964,7 +1964,11 @@ func testSetHead(t *testing.T, tt *rewindTest, snapshots bool) {
 
 	// Initialize a fresh chain
 	var (
-		genesis = (&Genesis{BaseFee: big.NewInt(params.InitialBaseFee)}).MustCommit(db)
+		gspec = &Genesis{
+			BaseFee: big.NewInt(params.InitialBaseFee),
+			Config:  params.AllEthashProtocolChanges,
+		}
+		genesis = gspec.MustCommit(db)
 		engine  = ethash.NewFullFaker()
 		config  = &CacheConfig{
 			TrieCleanLimit: 256,
@@ -1977,7 +1981,7 @@ func testSetHead(t *testing.T, tt *rewindTest, snapshots bool) {
 		config.SnapshotLimit = 256
 		config.SnapshotWait = true
 	}
-	chain, err := NewBlockChain(db, config, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil)
+	chain, err := NewBlockChain(db, config, gspec, nil, engine, vm.Config{}, nil, nil)
 	if err != nil {
 		t.Fatalf("Failed to create chain: %v", err)
 	}