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224 lines
7.0 KiB
224 lines
7.0 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 main.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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* EVM Execution tool.
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*/
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#include <fstream>
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#include <iostream>
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#include <ctime>
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#include <boost/algorithm/string.hpp>
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#include <libdevcore/CommonIO.h>
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#include <libdevcore/RLP.h>
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#include <libdevcore/SHA3.h>
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#include <libethereum/Block.h>
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#include <libethereum/Executive.h>
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#include <libevm/VM.h>
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#include <libevm/VMFactory.h>
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using namespace std;
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using namespace dev;
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using namespace eth;
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void help()
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{
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cout
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<< "Usage ethvm <options> [trace|stats|output] (<file>|--)" << endl
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<< "Transaction options:" << endl
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<< " --value <n> Transaction should transfer the <n> wei (default: 0)." << endl
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<< " --gas <n> Transaction should be given <n> gas (default: block gas limit)." << endl
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<< " --gas-price <n> Transaction's gas price' should be <n> (default: 0)." << endl
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<< " --sender <a> Transaction sender should be <a> (default: 0000...0069)." << endl
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<< " --origin <a> Transaction origin should be <a> (default: 0000...0069)." << endl
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#if ETH_EVMJIT || !ETH_TRUE
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<< endl
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<< "VM options:" << endl
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<< " --vm <vm-kind> Select VM. Options are: interpreter, jit, smart. (default: interpreter)" << endl
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#endif
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<< endl
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<< "Options for trace:" << endl
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<< " --flat Minimal whitespace in the JSON." << endl
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<< " --mnemonics Show instruction mnemonics in the trace (non-standard)." << endl
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<< endl
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<< "General options:" << endl
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<< " -V,--version Show the version and exit." << endl
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<< " -h,--help Show this help message and exit." << endl;
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exit(0);
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}
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void version()
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{
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cout << "ethvm version " << dev::Version << endl;
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cout << "By Gav Wood, 2015." << endl;
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cout << "Build: " << DEV_QUOTED(ETH_BUILD_PLATFORM) << "/" << DEV_QUOTED(ETH_BUILD_TYPE) << endl;
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exit(0);
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}
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enum class Mode
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{
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Trace,
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Statistics,
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OutputOnly
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};
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int main(int argc, char** argv)
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{
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string incoming = "--";
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Mode mode = Mode::Statistics;
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State state;
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Address sender = Address(69);
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Address origin = Address(69);
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u256 value = 0;
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u256 gas = Block().gasLimitRemaining();
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u256 gasPrice = 0;
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bool styledJson = true;
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StandardTrace st;
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EnvInfo envInfo;
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for (int i = 1; i < argc; ++i)
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{
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string arg = argv[i];
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if (arg == "-h" || arg == "--help")
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help();
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else if (arg == "-V" || arg == "--version")
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version();
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#if ETH_EVMJIT
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else if (arg == "--vm" && i + 1 < argc)
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{
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string vmKind = argv[++i];
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if (vmKind == "interpreter")
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VMFactory::setKind(VMKind::Interpreter);
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else if (vmKind == "jit")
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VMFactory::setKind(VMKind::JIT);
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else if (vmKind == "smart")
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VMFactory::setKind(VMKind::Smart);
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else
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{
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cerr << "Unknown VM kind: " << vmKind << endl;
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return -1;
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}
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}
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#endif
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else if (arg == "--mnemonics")
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st.setShowMnemonics();
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else if (arg == "--flat")
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styledJson = false;
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else if (arg == "--value" && i + 1 < argc)
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value = u256(argv[++i]);
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else if (arg == "--sender" && i + 1 < argc)
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sender = Address(argv[++i]);
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else if (arg == "--origin" && i + 1 < argc)
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origin = Address(argv[++i]);
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else if (arg == "--gas" && i + 1 < argc)
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gas = u256(argv[++i]);
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else if (arg == "--gas-price" && i + 1 < argc)
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gasPrice = u256(argv[++i]);
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else if (arg == "--value" && i + 1 < argc)
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value = u256(argv[++i]);
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else if (arg == "--value" && i + 1 < argc)
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value = u256(argv[++i]);
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else if (arg == "--beneficiary" && i + 1 < argc)
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envInfo.setBeneficiary(Address(argv[++i]));
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else if (arg == "--number" && i + 1 < argc)
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envInfo.setNumber(u256(argv[++i]));
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else if (arg == "--difficulty" && i + 1 < argc)
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envInfo.setDifficulty(u256(argv[++i]));
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else if (arg == "--timestamp" && i + 1 < argc)
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envInfo.setTimestamp(u256(argv[++i]));
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else if (arg == "--gas-limit" && i + 1 < argc)
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envInfo.setGasLimit(u256(argv[++i]));
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else if (arg == "--value" && i + 1 < argc)
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value = u256(argv[++i]);
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else if (arg == "stats")
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mode = Mode::Statistics;
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else if (arg == "output")
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mode = Mode::OutputOnly;
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else if (arg == "trace")
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mode = Mode::Trace;
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else
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incoming = arg;
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}
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bytes code;
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if (incoming == "--" || incoming.empty())
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for (int i = cin.get(); i != -1; i = cin.get())
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code.push_back((char)i);
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else
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code = contents(incoming);
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bytes data = fromHex(boost::trim_copy(asString(code)));
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if (data.empty())
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data = code;
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state.addBalance(sender, value);
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Executive executive(state, envInfo);
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ExecutionResult res;
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executive.setResultRecipient(res);
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Transaction t = eth::Transaction(value, gasPrice, gas, data, 0);
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t.forceSender(sender);
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unordered_map<byte, pair<unsigned, bigint>> counts;
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unsigned total = 0;
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bigint memTotal;
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auto onOp = [&](uint64_t step, Instruction inst, bigint m, bigint gasCost, bigint gas, VM* vm, ExtVMFace const* extVM) {
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if (mode == Mode::Statistics)
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{
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counts[(byte)inst].first++;
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counts[(byte)inst].second += gasCost;
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total++;
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if (m > 0)
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memTotal = m;
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}
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else if (mode == Mode::Trace)
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st(step, inst, m, gasCost, gas, vm, extVM);
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};
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executive.initialize(t);
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executive.create(sender, value, gasPrice, gas, &data, origin);
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Timer timer;
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executive.go(onOp);
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double execTime = timer.elapsed();
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executive.finalize();
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bytes output = std::move(res.output);
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if (mode == Mode::Statistics)
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{
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cout << "Gas used: " << res.gasUsed << " (+" << t.gasRequired() << " for transaction, -" << res.gasRefunded << " refunded)" << endl;
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cout << "Output: " << toHex(output) << endl;
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LogEntries logs = executive.logs();
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cout << logs.size() << " logs" << (logs.empty() ? "." : ":") << endl;
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for (LogEntry const& l: logs)
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{
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cout << " " << l.address.hex() << ": " << toHex(t.data()) << endl;
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for (h256 const& t: l.topics)
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cout << " " << t.hex() << endl;
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}
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cout << total << " operations in " << execTime << " seconds." << endl;
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cout << "Maximum memory usage: " << memTotal * 32 << " bytes" << endl;
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cout << "Expensive operations:" << endl;
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for (auto const& c: {Instruction::SSTORE, Instruction::SLOAD, Instruction::CALL, Instruction::CREATE, Instruction::CALLCODE, Instruction::MSTORE8, Instruction::MSTORE, Instruction::MLOAD, Instruction::SHA3})
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if (!!counts[(byte)c].first)
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cout << " " << instructionInfo(c).name << " x " << counts[(byte)c].first << " (" << counts[(byte)c].second << " gas)" << endl;
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}
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else if (mode == Mode::Trace)
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cout << st.json(styledJson);
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else if (mode == Mode::OutputOnly)
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cout << toHex(output);
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return 0;
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}
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