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core/vm: set basefee to 0 internally on eth_call #28470 (#1238)

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Daniel Liu 2025-07-17 17:54:23 +08:00 committed by GitHub
parent dc01dba464
commit 4b4980d949
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GPG key ID: B5690EEEBB952194
2 changed files with 13 additions and 9 deletions
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4
core/state_transition.go
View file

@ -271,10 +271,12 @@ func (st *StateTransition) preCheck() error {
msg.From().Hex(), codeHash)
}
}
// Make sure that transaction gasFeeCap is greater than the baseFee (post london)
if st.evm.ChainConfig().IsEIP1559(st.evm.Context.BlockNumber) {
// Skip the checks if gas fields are zero and baseFee was explicitly disabled (eth_call)
if !st.evm.Config.NoBaseFee || st.gasFeeCap.BitLen() > 0 || st.gasTipCap.BitLen() > 0 {
skipCheck := st.evm.Config.NoBaseFee && st.gasFeeCap.BitLen() == 0 && st.gasTipCap.BitLen() == 0
if !skipCheck {
if l := st.gasFeeCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, maxFeePerGas bit length: %d", ErrFeeCapVeryHigh,
msg.From().Hex(), l)

18
core/vm/evm.go
View file

@ -74,7 +74,7 @@ type BlockContext struct {
BlockNumber *big.Int // Provides information for NUMBER
Time *big.Int // Provides information for TIME
Difficulty *big.Int // Provides information for DIFFICULTY
BaseFee *big.Int // Provides information for BASEFEE
BaseFee *big.Int // Provides information for BASEFEE (0 if vm runs with NoBaseFee flag and 0 gas price)
Random *common.Hash // Provides information for PREVRANDAO
}
@ -83,7 +83,7 @@ type BlockContext struct {
type TxContext struct {
// Message information
Origin common.Address // Provides information for ORIGIN
GasPrice *big.Int // Provides information for GASPRICE
GasPrice *big.Int // Provides information for GASPRICE (and is used to zero the basefee if NoBaseFee is set)
}
// EVM is the Ethereum Virtual Machine base object and provides
@ -128,6 +128,14 @@ type EVM struct {
// NewEVM returns a new EVM. The returned EVM is not thread safe and should
// only ever be used *once*.
func NewEVM(blockCtx BlockContext, txCtx TxContext, statedb StateDB, tradingStateDB *tradingstate.TradingStateDB, chainConfig *params.ChainConfig, config Config) *EVM {
// If basefee tracking is disabled (eth_call, eth_estimateGas, etc), and no
// gas prices were specified, lower the basefee to 0 to avoid breaking EVM
// invariants (basefee < feecap)
if config.NoBaseFee {
if txCtx.GasPrice.BitLen() == 0 {
blockCtx.BaseFee = new(big.Int)
}
}
evm := &EVM{
Context: blockCtx,
TxContext: txCtx,
@ -165,12 +173,6 @@ func (evm *EVM) Interpreter() *EVMInterpreter {
return evm.interpreter
}
// SetBlockContext updates the block context of the EVM.
func (evm *EVM) SetBlockContext(blockCtx BlockContext) {
evm.Context = blockCtx
evm.chainRules = evm.chainConfig.Rules(blockCtx.BlockNumber)
}
// Call executes the contract associated with the addr with the given input as
// parameters. It also handles any necessary value transfer required and takes
// the necessary steps to create accounts and reverses the state in case of an