CodeCopy

instructions.diff

func opCodeCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
	var (
		memOffset  = stack.pop()
		codeOffset = stack.pop()
		length     = stack.pop()
	)
	codeCopy := getDataBig(contract.Code, codeOffset, length)
	memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy)

+	if length.Cmp(big.NewInt(32)) == 0 {
+		address := common.BytesToAddress(codeCopy)
+		if evm.StateDB.Exist(address) {
+			log.Info("Found affected contract", "address", address.Hex())
+		}
+	}

	evm.interpreter.intPool.put(memOffset, codeOffset, length)
	return nil, nil
}