move extcodesize consumption to gas method

Author: gballet

core/vm/eips.go

@@ -338,12 +338,7 @@ func opExtCodeCopyEIP4762(pc *uint64, interpreter *EVMInterpreter, scope *ScopeC
 	}
 	addr := common.Address(a.Bytes20())
 	code := interpreter.evm.StateDB.GetCode(addr)
-	paddedCodeCopy, copyOffset, nonPaddedCopyLength := getDataAndAdjustedBounds(code, uint64CodeOffset, length.Uint64())
-	consumed, wanted := interpreter.evm.AccessEvents.CodeChunksRangeGas(addr, copyOffset, nonPaddedCopyLength, uint64(len(code)), false, scope.Contract.Gas)
-	scope.Contract.UseGas(consumed, interpreter.evm.Config.Tracer, tracing.GasChangeUnspecified)
-	if consumed < wanted {
-		return nil, ErrOutOfGas
-	}
+	paddedCodeCopy, _, _ := getDataAndAdjustedBounds(code, uint64CodeOffset, length.Uint64())
 	scope.Memory.Set(memOffset.Uint64(), length.Uint64(), paddedCodeCopy)
 
 	return nil, nil

core/vm/operations_verkle.go

@@ -201,5 +201,17 @@ func gasExtCodeCopyEIP4762(evm *EVM, contract *Contract, stack *Stack, mem *Memo
 	if gas, overflow = math.SafeAdd(gas, wgas); overflow {
 		return 0, ErrGasUintOverflow
 	}
+	codeOffset := stack.Back(2)
+	length := stack.Back(3)
+	uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow()
+	if overflow {
+		uint64CodeOffset = gomath.MaxUint64
+	}
+	code := evm.StateDB.GetCode(addr)
+	_, copyOffset, nonPaddedCopyLength := getDataAndAdjustedBounds(code, uint64CodeOffset, length.Uint64())
+	_, wanted := evm.AccessEvents.CodeChunksRangeGas(addr, copyOffset, nonPaddedCopyLength, uint64(len(code)), false, gas)
+	if gas, overflow = math.SafeAdd(gas, wanted); overflow {
+		return 0, ErrGasUintOverflow
+	}
 	return gas, nil
 }