Merge pull request #839 from gzliudan/eip7516

implement EIP-7516

core/vm/eips.go

@@ -256,6 +256,23 @@ func opMcopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]by
 	return nil, nil
 }
 
+// opBlobBaseFee implements BLOBBASEFEE opcode
+func opBlobBaseFee(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	blobBaseFee := new(uint256.Int)
+	scope.Stack.push(blobBaseFee)
+	return nil, nil
+}
+
+// enable7516 applies EIP-7516 (BLOBBASEFEE opcode)
+func enable7516(jt *JumpTable) {
+	jt[BLOBBASEFEE] = &operation{
+		execute:     opBlobBaseFee,
+		constantGas: GasQuickStep,
+		minStack:    minStack(0, 1),
+		maxStack:    maxStack(0, 1),
+	}
+}
+
 // enable6780 applies EIP-6780 (deactivate SELFDESTRUCT)
 func enable6780(jt *JumpTable) {
 	jt[SELFDESTRUCT] = &operation{

core/vm/jump_table.go

@@ -82,6 +82,7 @@ func validate(jt JumpTable) JumpTable {
 
 func newCancunInstructionSet() JumpTable {
 	instructionSet := newEip1559InstructionSet()
+	enable7516(&instructionSet) // EIP-7516 (BLOBBASEFEE opcode)
 	enable1153(&instructionSet) // EIP-1153 "Transient Storage"
 	enable5656(&instructionSet) // EIP-5656 (MCOPY opcode)
 	enable6780(&instructionSet) // EIP-6780 SELFDESTRUCT only in same transaction

core/vm/opcodes.go

@@ -100,6 +100,7 @@ const (
 	CHAINID     OpCode = 0x46
 	SELFBALANCE OpCode = 0x47
 	BASEFEE     OpCode = 0x48
+	BLOBBASEFEE OpCode = 0x4a
 )
 
 // 0x50 range - 'storage' and execution.
@@ -284,6 +285,7 @@ var opCodeToString = [256]string{
 	CHAINID:     "CHAINID",
 	SELFBALANCE: "SELFBALANCE",
 	BASEFEE:     "BASEFEE",
+	BLOBBASEFEE: "BLOBBASEFEE",
 
 	// 0x50 range - 'storage' and execution.
 	POP:      "POP",
@@ -458,6 +460,7 @@ var stringToOp = map[string]OpCode{
 	"GASLIMIT":       GASLIMIT,
 	"SELFBALANCE":    SELFBALANCE,
 	"BASEFEE":        BASEFEE,
+	"BLOBBASEFEE":    BLOBBASEFEE,
 	"POP":            POP,
 	"MLOAD":          MLOAD,
 	"MSTORE":         MSTORE,

eth/api_backend.go

@@ -353,6 +353,10 @@ func (b *EthApiBackend) FeeHistory(ctx context.Context, blockCount uint64, lastB
 	return b.gpo.FeeHistory(ctx, blockCount, lastBlock, rewardPercentiles)
 }
 
+func (b *EthApiBackend) BlobBaseFee(ctx context.Context) *big.Int {
+	return new(big.Int)
+}
+
 func (b *EthApiBackend) ChainDb() ethdb.Database {
 	return b.eth.ChainDb()
 }

internal/ethapi/api.go

@@ -138,6 +138,11 @@ func (s *PublicEthereumAPI) FeeHistory(ctx context.Context, blockCount hexutil.U
 	return results, nil
 }
 
+// BlobBaseFee returns the base fee for blob gas at the current head.
+func (s *PublicEthereumAPI) BlobBaseFee(ctx context.Context) *hexutil.Big {
+	return (*hexutil.Big)(new(big.Int))
+}
+
 // ProtocolVersion returns the current Ethereum protocol version this node supports
 func (s *PublicEthereumAPI) ProtocolVersion() hexutil.Uint {
 	return hexutil.Uint(s.b.ProtocolVersion())

internal/ethapi/backend.go

@@ -48,6 +48,7 @@ type Backend interface {
 	ProtocolVersion() int
 	SuggestGasTipCap(ctx context.Context) (*big.Int, error)
 	FeeHistory(ctx context.Context, blockCount uint64, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (*big.Int, [][]*big.Int, []*big.Int, []float64, error)
+	BlobBaseFee(ctx context.Context) *big.Int
 	ChainDb() ethdb.Database
 	AccountManager() *accounts.Manager
 	RPCGasCap() uint64    // global gas cap for eth_call over rpc: DoS protection

internal/ethapi/transaction_args_test.go

@@ -291,6 +291,11 @@ func (b *backendMock) SyncProgress() ethereum.SyncProgress { return ethereum.Syn
 func (b *backendMock) FeeHistory(context.Context, uint64, rpc.BlockNumber, []float64) (*big.Int, [][]*big.Int, []*big.Int, []float64, error) {
 	return nil, nil, nil, nil, nil
 }
+
+func (b *backendMock) BlobBaseFee(ctx context.Context) *big.Int {
+	return new(big.Int)
+}
+
 func (b *backendMock) ChainDb() ethdb.Database           { return nil }
 func (b *backendMock) AccountManager() *accounts.Manager { return nil }
 func (b *backendMock) ExtRPCEnabled() bool               { return false }

internal/jsre/deps/web3.js

@@ -5586,6 +5586,11 @@ var properties = function () {
             getter: 'eth_gasPrice',
             outputFormatter: formatters.outputBigNumberFormatter
         }),
+        new Property({
+            name: 'blobBaseFee',
+            getter: 'eth_blobBaseFee',
+            outputFormatter: formatters.outputBigNumberFormatter
+        }),
         new Property({
             name: 'accounts',
             getter: 'eth_accounts'

les/api_backend.go

@@ -286,6 +286,10 @@ func (b *LesApiBackend) FeeHistory(ctx context.Context, blockCount uint64, lastB
 	return b.gpo.FeeHistory(ctx, blockCount, lastBlock, rewardPercentiles)
 }
 
+func (b *LesApiBackend) BlobBaseFee(ctx context.Context) *big.Int {
+	return new(big.Int)
+}
+
 func (b *LesApiBackend) ChainDb() ethdb.Database {
 	return b.eth.chainDb
 }