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125 lines
4.0 KiB
125 lines
4.0 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file AssemblyDebuggerModel.cpp
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* @author Yann yann@ethdev.com
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* @date 2014
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* used as a model to debug contract assembly code.
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*/
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#include <QApplication>
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#include <libdevcore/Common.h>
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#include <libevm/VM.h>
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#include <libethereum/Executive.h>
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#include <libethereum/Transaction.h>
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#include <libethereum/ExtVM.h>
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#include "AssemblyDebuggerModel.h"
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#include "AppContext.h"
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#include "TransactionListModel.h"
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#include "DebuggingStateWrapper.h"
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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namespace dev
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{
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namespace mix
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{
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AssemblyDebuggerModel::AssemblyDebuggerModel():
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m_userAccount(KeyPair::create()),
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m_baseState(Address(), m_overlayDB, BaseState::Empty)
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{
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m_baseState.addBalance(m_userAccount.address(), 10000000 * ether);
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m_executiveState = m_baseState;
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m_currentExecution = std::unique_ptr<Executive>(new Executive(m_executiveState, 0));
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}
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DebuggingContent AssemblyDebuggerModel::executeTransaction(bytesConstRef const& _rawTransaction)
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{
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QList<DebuggingState> machineStates;
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// Reset the state back to our clean premine.
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m_currentExecution = std::unique_ptr<Executive>(new Executive(m_executiveState, 0));
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m_currentExecution->setup(_rawTransaction);
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std::vector<DebuggingState const*> levels;
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bytes code;
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bytesConstRef data;
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bool firstIteration = true;
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auto onOp = [&](uint64_t steps, Instruction inst, dev::bigint newMemSize, dev::bigint gasCost, void* voidVM, void const* voidExt)
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{
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VM& vm = *(VM*)voidVM;
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ExtVM const& ext = *(ExtVM const*)voidExt;
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if (firstIteration)
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{
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code = ext.code;
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data = ext.data;
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firstIteration = false;
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}
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if (levels.size() < ext.depth)
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levels.push_back(&machineStates.back());
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else
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levels.resize(ext.depth);
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machineStates.append(DebuggingState({steps, ext.myAddress, vm.curPC(), inst, newMemSize, vm.gas(),
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vm.stack(), vm.memory(), gasCost, ext.state().storage(ext.myAddress), levels}));
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};
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m_currentExecution->go(onOp);
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m_currentExecution->finalize(onOp);
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m_executiveState.completeMine();
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DebuggingContent d;
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d.returnValue = m_currentExecution->out().toVector();
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d.machineStates = machineStates;
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d.executionCode = code;
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d.executionData = data;
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d.contentAvailable = true;
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d.message = "ok";
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return d;
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}
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DebuggingContent AssemblyDebuggerModel::deployContract(bytes const& _code)
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{
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u256 gasPrice = 10000000000000;
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u256 gas = 1000000;
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u256 amount = 100;
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Transaction _tr(amount, gasPrice, min(gas, m_baseState.gasLimitRemaining()), _code, m_executiveState.transactionsFrom(dev::toAddress(m_userAccount.secret())), m_userAccount.secret());
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bytes b = _tr.rlp();
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dev::bytesConstRef bytesRef = &b;
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DebuggingContent d = executeTransaction(bytesRef);
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h256 th = sha3(rlpList(_tr.sender(), _tr.nonce()));
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d.contractAddress = right160(th);
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return d;
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}
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DebuggingContent AssemblyDebuggerModel::callContract(Address const& _contract, bytes const& _data, TransactionSettings const& _tr)
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{
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Transaction tr = Transaction(_tr.value, _tr.gasPrice, min(_tr.gas, m_baseState.gasLimitRemaining()), _contract, _data, m_executiveState.transactionsFrom(dev::toAddress(m_userAccount.secret())), m_userAccount.secret());
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bytes b = tr.rlp();
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dev::bytesConstRef bytesRef = &b;
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DebuggingContent d = executeTransaction(bytesRef);
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d.contractAddress = tr.receiveAddress();
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return d;
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}
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void AssemblyDebuggerModel::resetState()
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{
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// Reset the state back to our clean premine.
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m_executiveState = m_baseState;
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}
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}
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}
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