/******************************************************************************* * Copyright (C) 2017, 2018 MINRES Technologies GmbH * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * *******************************************************************************/ #include #include #include #include #include #include #include #ifdef WITH_LLVM #include #endif #include #include #include namespace po = boost::program_options; using cpu_ptr = std::unique_ptr; using vm_ptr= std::unique_ptr; template std::tuple create_cpu(std::string const& backend, unsigned gdb_port){ CORE* lcpu = new iss::arch::riscv_hart_m_p(); if(backend == "interp") return {cpu_ptr{lcpu}, vm_ptr{iss::interp::create(lcpu, gdb_port)}}; #ifdef WITH_LLVM if(backend == "llvm") return {cpu_ptr{lcpu}, vm_ptr{iss::llvm::create(lcpu, gdb_port)}}; #endif if(backend == "tcc") return {cpu_ptr{lcpu}, vm_ptr{iss::tcc::create(lcpu, gdb_port)}}; return {nullptr, nullptr}; } int main(int argc, char *argv[]) { /* * Define and parse the program options */ po::variables_map clim; po::options_description desc("Options"); // clang-format off desc.add_options() ("help,h", "Print help message") ("verbose,v", po::value()->implicit_value(0), "Sets logging verbosity") ("logfile,f", po::value(), "Sets default log file.") ("disass,d", po::value()->implicit_value(""), "Enables disassembly") ("gdb-port,g", po::value()->default_value(0), "enable gdb server and specify port to use") ("instructions,i", po::value()->default_value(std::numeric_limits::max()), "max. number of instructions to simulate") ("reset,r", po::value(), "reset address") ("dump-ir", "dump the intermediate representation") ("elf", po::value>(), "ELF file(s) to load") ("mem,m", po::value(), "the memory input file") ("plugin,p", po::value>(), "plugin to activate") ("backend", po::value()->default_value("tcc"), "the memory input file") ("isa", po::value()->default_value("tgf_c"), "isa to use for simulation"); // clang-format on auto parsed = po::command_line_parser(argc, argv).options(desc).allow_unregistered().run(); try { po::store(parsed, clim); // can throw // --help option if (clim.count("help")) { std::cout << "DBT-RISE-RiscV simulator for RISC-V" << std::endl << desc << std::endl; return 0; } po::notify(clim); // throws on error, so do after help in case } catch (po::error &e) { // there are problems std::cerr << "ERROR: " << e.what() << std::endl << std::endl; std::cerr << desc << std::endl; return 1; } std::vector args = collect_unrecognized(parsed.options, po::include_positional); LOGGER(DEFAULT)::print_time() = false; LOGGER(connection)::print_time() = false; if (clim.count("verbose")) { auto l = logging::as_log_level(clim["verbose"].as()); LOGGER(DEFAULT)::reporting_level() = l; LOGGER(connection)::reporting_level() = l; } if (clim.count("logfile")) { // configure the connection logger auto f = fopen(clim["logfile"].as().c_str(), "w"); LOG_OUTPUT(DEFAULT)::stream() = f; LOG_OUTPUT(connection)::stream() = f; } std::vector plugin_list; auto res = 0; try { #ifdef WITH_LLVM // application code comes here // iss::init_jit_debug(argc, argv); #endif bool dump = clim.count("dump-ir"); // instantiate the simulator vm_ptr vm{nullptr}; cpu_ptr cpu{nullptr}; std::string isa_opt(clim["isa"].as()); if (isa_opt == "tgf_b") { std::tie(cpu, vm) = create_cpu(clim["backend"].as(), clim["gdb-port"].as()); } else if (isa_opt == "tgf_c") { std::tie(cpu, vm) = create_cpu(clim["backend"].as(), clim["gdb-port"].as()); } else { LOG(ERROR) << "Illegal argument value for '--isa': " << clim["isa"].as() << std::endl; return 127; } if (clim.count("plugin")) { for (std::string const& opt_val : clim["plugin"].as>()) { std::string plugin_name=opt_val; std::string filename{"cycles.txt"}; std::size_t found = opt_val.find('='); if (found != std::string::npos) { plugin_name = opt_val.substr(0, found); filename = opt_val.substr(found + 1, opt_val.size()); } if (plugin_name == "ic") { auto *ic_plugin = new iss::plugin::instruction_count(filename); vm->register_plugin(*ic_plugin); plugin_list.push_back(ic_plugin); } else if (plugin_name == "ce") { auto *ce_plugin = new iss::plugin::cycle_estimate(filename); vm->register_plugin(*ce_plugin); plugin_list.push_back(ce_plugin); } else { LOG(ERROR) << "Unknown plugin name: " << plugin_name << ", valid names are 'ce', 'ic'" << std::endl; return 127; } } } if (clim.count("disass")) { vm->setDisassEnabled(true); LOGGER(disass)::reporting_level() = logging::INFO; LOGGER(disass)::print_time() = false; auto file_name = clim["disass"].as(); if (file_name.length() > 0) { LOG_OUTPUT(disass)::stream() = fopen(file_name.c_str(), "w"); LOGGER(disass)::print_severity() = false; } } uint64_t start_address = 0; if (clim.count("mem")) vm->get_arch()->load_file(clim["mem"].as(), iss::arch::traits::MEM); if (clim.count("elf")) for (std::string input : clim["elf"].as>()) { auto start_addr = vm->get_arch()->load_file(input); if (start_addr.second) start_address = start_addr.first; } for (std::string input : args) { auto start_addr = vm->get_arch()->load_file(input); // treat remaining arguments as elf files if (start_addr.second) start_address = start_addr.first; } if (clim.count("reset")) { auto str = clim["reset"].as(); start_address = str.find("0x") == 0 ? std::stoull(str.substr(2), nullptr, 16) : std::stoull(str, nullptr, 10); } vm->reset(start_address); auto cycles = clim["instructions"].as(); res = vm->start(cycles, dump); } catch (std::exception &e) { LOG(ERROR) << "Unhandled Exception reached the top of main: " << e.what() << ", application will now exit" << std::endl; res = 2; } // cleanup to let plugins report of needed for (auto *p : plugin_list) { delete p; } return res; }