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d8ed290a40
This is the wiring that makes the binary transition registry actually
useful. The chain now keeps two trie databases in parallel during the
fork window:
- bc.triedb stays in MPT mode and holds pre-fork state.
- bc.bintriedb is a sibling triedb in UBT mode, allocated when
UBTTime is set and the chain did not start binary at genesis.
Routing happens through the new bc.stateDatabase(parentRoot, header):
- pre-UBT block: MPTDatabase backed by bc.triedb.
- post-UBTTransitionEndTime block: plain UBTDatabase with the
transition tree wrap explicitly disabled.
- first UBT block (parent is pre-UBT): a transition UBTDatabase
seeded with the parent root as the frozen MPT base.
- subsequent UBT block while transitioning: probeTransitionDatabase
inspects the registry and chooses between the transition variant
(when slot 5 still records a non-zero base root) and the plain
variant otherwise.
UBTDatabase grows the supporting fields:
- mpttriedb + baseRoot for the transition window.
- NewTransitionUBTDatabase constructor.
- WithTransitionTreeWrap(bool) toggle for the override path.
- OpenTrie / OpenStorageTrie now serve TransitionTrie / MPT storage
tries while the transition is live.
- Commit substitutes EmptyBinaryHash for the originRoot on the very
first transition block, so the binary triedb does not reject the
MPT-rooted parent.
StateAt / StateAtForkBoundary on BlockChain now defer to
stateDatabase, so the miner, ProcessBlock and historical state lookups
all share one routing path.
bc.bintriedb is journaled and closed alongside bc.triedb.
Adds core/chain_makers.go BlockGen.GetState so tests can inspect
storage slots written during block production, and a new
core/bintrie_transition_test.go that walks a chain across the fork
and asserts the registry's started flag and base root are populated
exactly when expected.
107 lines
4 KiB
Go
107 lines
4 KiB
Go
// Copyright 2026 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/beacon"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/params"
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)
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// TestBinaryTransitionRegistryBootstrap exercises the registry deployment on
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// the first UBT block: pre-fork blocks must leave the registry uninitialised,
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// the first UBT block must mark started=true and the base root must be
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// captured for every subsequent UBT block.
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func TestBinaryTransitionRegistryBootstrap(t *testing.T) {
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var (
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ubtTime uint64 = 30
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coinbase = common.HexToAddress("0x71562b71999873DB5b286dF957af199Ec94617F7")
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gspec = &Genesis{
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Config: ¶ms.ChainConfig{
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ChainID: big.NewInt(1),
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HomesteadBlock: big.NewInt(0),
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EIP150Block: big.NewInt(0),
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EIP155Block: big.NewInt(0),
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EIP158Block: big.NewInt(0),
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ByzantiumBlock: big.NewInt(0),
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ConstantinopleBlock: big.NewInt(0),
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PetersburgBlock: big.NewInt(0),
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IstanbulBlock: big.NewInt(0),
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MuirGlacierBlock: big.NewInt(0),
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BerlinBlock: big.NewInt(0),
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LondonBlock: big.NewInt(0),
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Ethash: new(params.EthashConfig),
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ShanghaiTime: u64(0),
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CancunTime: u64(0),
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PragueTime: u64(0),
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UBTTime: &ubtTime,
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TerminalTotalDifficulty: common.Big0,
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EnableUBTAtGenesis: false,
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BlobScheduleConfig: ¶ms.BlobScheduleConfig{
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Cancun: params.DefaultCancunBlobConfig,
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Prague: params.DefaultPragueBlobConfig,
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UBT: params.DefaultPragueBlobConfig,
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},
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},
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Alloc: GenesisAlloc{
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coinbase: {
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Balance: big.NewInt(1000000000000000000),
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},
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params.BeaconRootsAddress: {Nonce: 1, Code: params.BeaconRootsCode, Balance: common.Big0},
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params.HistoryStorageAddress: {Nonce: 1, Code: params.HistoryStorageCode, Balance: common.Big0},
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params.WithdrawalQueueAddress: {Nonce: 1, Code: params.WithdrawalQueueCode, Balance: common.Big0},
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params.ConsolidationQueueAddress: {Nonce: 1, Code: params.ConsolidationQueueCode, Balance: common.Big0},
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},
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}
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)
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config := gspec.Config
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engine := beacon.New(ethash.NewFaker())
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registryAddr := params.BinaryTransitionRegistryAddress
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slotStarted := common.Hash{}
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slotBaseRoot := common.BytesToHash([]byte{5})
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GenerateChainWithGenesis(gspec, engine, 6, func(i int, gen *BlockGen) {
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gen.SetPoS()
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blockNum := gen.Number()
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blockTime := gen.Timestamp()
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isUBT := config.IsUBT(blockNum, blockTime)
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started := gen.GetState(registryAddr, slotStarted)
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baseRoot := gen.GetState(registryAddr, slotBaseRoot)
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t.Logf("block %d: num=%d time=%d isUBT=%v started=%x baseRoot=%x",
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i, blockNum.Uint64(), blockTime, isUBT, started, baseRoot)
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if !isUBT {
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if started != (common.Hash{}) {
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t.Errorf("block %d: pre-transition block should not have registry initialized", i)
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}
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return
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}
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if started == (common.Hash{}) {
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t.Errorf("block %d: UBT block should have registry slot 0 (started) set", i)
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}
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if baseRoot == (common.Hash{}) {
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t.Errorf("block %d: UBT block should have registry slot 5 (base root) set", i)
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}
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})
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}
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