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Update EIP-2935: Adjust gas-costs for 2935 #10380

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May 22, 2024
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Update EIP-2935: Adjust gas-costs for 2935 #10380

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18 changes: 3 additions & 15 deletions core/vm/eips.go
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,6 @@ import (
)

var activators = map[int]func(*JumpTable){
2935: enable2935,
7516: enable7516,
6780: enable6780,
5656: enable5656,
Expand All @@ -38,6 +37,7 @@ var activators = map[int]func(*JumpTable){
3855: enable3855,
3529: enable3529,
3198: enable3198,
2935: enable2935,
2929: enable2929,
2200: enable2200,
1884: enable1884,
Expand Down Expand Up @@ -298,13 +298,7 @@ func opMcopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]by

// enable6780 applies EIP-6780 (deactivate SELFDESTRUCT)
func enable6780(jt *JumpTable) {
jt[SELFDESTRUCT] = &operation{
execute: opSelfdestruct6780,
dynamicGas: gasSelfdestructEIP3529,
constantGas: params.SelfdestructGasEIP150,
numPop: 1,
numPush: 0,
}
jt[SELFDESTRUCT].execute = opSelfdestruct6780
}

// opBlobBaseFee implements the BLOBBASEFEE opcode
Expand All @@ -331,11 +325,5 @@ func enable7516(jt *JumpTable) {

// enable2935 applies EIP-2935 (Historical block hashes in state)
func enable2935(jt *JumpTable) {
jt[BLOCKHASH] = &operation{
execute: opBlockhash2935,
constantGas: GasExtStep,
dynamicGas: gasOpBlockhashEIP2935,
numPop: 1,
numPush: 1,
}
jt[BLOCKHASH].execute = opBlockhash2935
}
19 changes: 0 additions & 19 deletions core/vm/operations_acl.go
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Original file line number Diff line number Diff line change
Expand Up @@ -235,22 +235,3 @@ func makeSelfdestructGasFn(refundsEnabled bool) gasFunc {
}
return gasFunc
}

// gasOpBlockhashEIP2935 returns the gas for the new BLOCKHASH operation post EIP-2935
// If arg is outside of the params.BlockHashHistoryServeWindow, zero dynamic gas is returned
// EIP-2929 Cold/Warm storage read cost is applicable here similar to SLOAD
func gasOpBlockhashEIP2935(evm *EVM, contract *Contract, stack *stack.Stack, mem *Memory, memorySize uint64) (uint64, error) {
arg := stack.Peek()
arg64, overflow := arg.Uint64WithOverflow()
if overflow {
return 0, nil
}
if arg64 >= evm.Context.BlockNumber || arg64+params.BlockHashHistoryServeWindow < evm.Context.BlockNumber {
return 0, nil
}
storageSlot := libcommon.BytesToHash(uint256.NewInt(arg64 % params.BlockHashHistoryServeWindow).Bytes())
if _, slotMod := evm.IntraBlockState().AddSlotToAccessList(params.HistoryStorageAddress, storageSlot); slotMod {
return params.ColdSloadCostEIP2929, nil
}
return params.WarmStorageReadCostEIP2929, nil
}
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