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core: implement BLOBBASEFEE opcode (0x4a) (#28098)

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Implements "EIP-7516: BLOBBASEFEE opcode" for cancun, as per spec: https://eips.ethereum.org/EIPS/eip-7516
This commit is contained in:
Marius van der Wijden
2023-10-02 05:49:29 -04:00
committed by GitHub
parent 7b6ff527d5
commit c39cbc1a78
12 changed files with 78 additions and 42 deletions
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cmd/evm/internal/t8ntool/execution.go
+9 -7
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@@ -163,17 +163,19 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
rnd := common.BigToHash(pre.Env.Random)
vmContext.Random = &rnd
}
// If excessBlobGas is defined, add it to the vmContext.
// Calculate the BlobBaseFee
var excessBlobGas uint64
if pre.Env.ExcessBlobGas != nil {
vmContext.ExcessBlobGas = pre.Env.ExcessBlobGas
excessBlobGas := *pre.Env.ExcessBlobGas
vmContext.BlobBaseFee = eip4844.CalcBlobFee(excessBlobGas)
} else {
// If it is not explicitly defined, but we have the parent values, we try
// to calculate it ourselves.
parentExcessBlobGas := pre.Env.ParentExcessBlobGas
parentBlobGasUsed := pre.Env.ParentBlobGasUsed
if parentExcessBlobGas != nil && parentBlobGasUsed != nil {
excessBlobGas := eip4844.CalcExcessBlobGas(*parentExcessBlobGas, *parentBlobGasUsed)
vmContext.ExcessBlobGas = &excessBlobGas
excessBlobGas = eip4844.CalcExcessBlobGas(*parentExcessBlobGas, *parentBlobGasUsed)
vmContext.BlobBaseFee = eip4844.CalcBlobFee(excessBlobGas)
}
}
// If DAO is supported/enabled, we need to handle it here. In geth 'proper', it's
@@ -189,7 +191,7 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
}
var blobGasUsed uint64
for i, tx := range txs {
if tx.Type() == types.BlobTxType && vmContext.ExcessBlobGas == nil {
if tx.Type() == types.BlobTxType && vmContext.BlobBaseFee == nil {
errMsg := "blob tx used but field env.ExcessBlobGas missing"
log.Warn("rejected tx", "index", i, "hash", tx.Hash(), "error", errMsg)
rejectedTxs = append(rejectedTxs, &rejectedTx{i, errMsg})
@@ -322,8 +324,8 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
h := types.DeriveSha(types.Withdrawals(pre.Env.Withdrawals), trie.NewStackTrie(nil))
execRs.WithdrawalsRoot = &h
}
if vmContext.ExcessBlobGas != nil {
execRs.CurrentExcessBlobGas = (*math.HexOrDecimal64)(vmContext.ExcessBlobGas)
if vmContext.BlobBaseFee != nil {
execRs.CurrentExcessBlobGas = (*math.HexOrDecimal64)(&excessBlobGas)
execRs.CurrentBlobGasUsed = (*math.HexOrDecimal64)(&blobGasUsed)
}
// Re-create statedb instance with new root upon the updated database