gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

core/vm: SHA3 word cost for CREATE2 (#17812)

Browse Source 
* core/vm: create2 address generation tests

* core/vm: per byte cost of CREATE2

* core/vm: fix linter issue in test
This commit is contained in:
Martin Holst Swende
2018-10-05 09:32:35 +02:00
committed by Péter Szilágyi
parent 81375a3801
commit 092df3ab59
2 changed files with 87 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
core/vm/gas_table.go
View File

@ -347,6 +347,17 @@ func gasCreate2(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack,
if gas, overflow = math.SafeAdd(gas, params.Create2Gas); overflow {
return 0, errGasUintOverflow
}
wordGas, overflow := bigUint64(stack.Back(2))
if overflow {
return 0, errGasUintOverflow
}
if wordGas, overflow = math.SafeMul(toWordSize(wordGas), params.Sha3WordGas); overflow {
return 0, errGasUintOverflow
}
if gas, overflow = math.SafeAdd(gas, wordGas); overflow {
return 0, errGasUintOverflow
}
return gas, nil
}