go-ethereum/core/vm/operations_verkle.go

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// Copyright 2024 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package vm
import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/params"
)
func gasSStore4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
gas := evm.AccessEvents.SlotGas(contract.Address(), stack.peek().Bytes32(), true)
if gas == 0 {
gas = params.WarmStorageReadCostEIP2929
}
return gas, nil
}
func gasSLoad4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
gas := evm.AccessEvents.SlotGas(contract.Address(), stack.peek().Bytes32(), false)
if gas == 0 {
gas = params.WarmStorageReadCostEIP2929
}
return gas, nil
}
func gasBalance4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
address := stack.peek().Bytes20()
gas := evm.AccessEvents.BasicDataGas(address, false)
if gas == 0 {
gas = params.WarmStorageReadCostEIP2929
}
return gas, nil
}
func gasExtCodeSize4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
address := stack.peek().Bytes20()
if _, isPrecompile := evm.precompile(address); isPrecompile {
return 0, nil
}
gas := evm.AccessEvents.BasicDataGas(address, false)
if gas == 0 {
gas = params.WarmStorageReadCostEIP2929
}
return gas, nil
}
func gasExtCodeHash4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
address := stack.peek().Bytes20()
if _, isPrecompile := evm.precompile(address); isPrecompile {
return 0, nil
}
gas := evm.AccessEvents.CodeHashGas(address, false)
if gas == 0 {
gas = params.WarmStorageReadCostEIP2929
}
return gas, nil
}
func makeCallVariantGasEIP4762(oldCalculator gasFunc) gasFunc {
return func(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
gas, err := oldCalculator(evm, contract, stack, mem, memorySize)
if err != nil {
return 0, err
}
if _, isPrecompile := evm.precompile(contract.Address()); isPrecompile {
return gas, nil
}
witnessGas := evm.AccessEvents.MessageCallGas(contract.Address())
if witnessGas == 0 {
witnessGas = params.WarmStorageReadCostEIP2929
}
return witnessGas + gas, nil
}
}
var (
gasCallEIP4762 = makeCallVariantGasEIP4762(gasCall)
gasCallCodeEIP4762 = makeCallVariantGasEIP4762(gasCallCode)
gasStaticCallEIP4762 = makeCallVariantGasEIP4762(gasStaticCall)
gasDelegateCallEIP4762 = makeCallVariantGasEIP4762(gasDelegateCall)
)
func gasSelfdestructEIP4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
beneficiaryAddr := common.Address(stack.peek().Bytes20())
if _, isPrecompile := evm.precompile(beneficiaryAddr); isPrecompile {
return 0, nil
}
contractAddr := contract.Address()
statelessGas := evm.AccessEvents.BasicDataGas(contractAddr, false)
if contractAddr != beneficiaryAddr {
statelessGas += evm.AccessEvents.BasicDataGas(beneficiaryAddr, false)
}
// Charge write costs if it transfers value
if evm.StateDB.GetBalance(contractAddr).Sign() != 0 {
statelessGas += evm.AccessEvents.BasicDataGas(contractAddr, true)
if contractAddr != beneficiaryAddr {
statelessGas += evm.AccessEvents.BasicDataGas(beneficiaryAddr, true)
}
}
return statelessGas, nil
}
func gasCodeCopyEip4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
gas, err := gasCodeCopy(evm, contract, stack, mem, memorySize)
if err != nil {
return 0, err
}
var (
codeOffset = stack.Back(1)
length = stack.Back(2)
)
uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow()
if overflow {
uint64CodeOffset = math.MaxUint64
}
_, copyOffset, nonPaddedCopyLength := getDataAndAdjustedBounds(contract.Code, uint64CodeOffset, length.Uint64())
if !contract.IsDeployment {
gas += evm.AccessEvents.CodeChunksRangeGas(contract.Address(), copyOffset, nonPaddedCopyLength, uint64(len(contract.Code)), false)
}
return gas, nil
}
func gasExtCodeCopyEIP4762(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
// memory expansion first (dynamic part of pre-2929 implementation)
gas, err := gasExtCodeCopy(evm, contract, stack, mem, memorySize)
if err != nil {
return 0, err
}
addr := common.Address(stack.peek().Bytes20())
wgas := evm.AccessEvents.BasicDataGas(addr, false)
if wgas == 0 {
wgas = params.WarmStorageReadCostEIP2929
}
var overflow bool
// We charge (cold-warm), since 'warm' is already charged as constantGas
if gas, overflow = math.SafeAdd(gas, wgas); overflow {
return 0, ErrGasUintOverflow
}
return gas, nil
}