Generic RISC-V ISS
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////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017, 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.
//
// Contributors:
// eyck@minres.com - initial implementation
//
//
////////////////////////////////////////////////////////////////////////////////
#include <boost/program_options.hpp>
#include <iss/log_categories.h>
#include <sstream>
#include <sysc/SiFive/platform.h>
#include "scc/configurer.h"
#include "scc/report.h"
#include "scc/scv_tr_db.h"
#include "scc/tracer.h"
#include <cci_utils/broker.h>
#include <iss/jit/jit_helper.h>
using namespace sysc;
namespace po = boost::program_options;
namespace {
const size_t ERROR_IN_COMMAND_LINE = 1;
const size_t SUCCESS = 0;
const size_t ERROR_UNHANDLED_EXCEPTION = 2;
} // namespace
int sc_main(int argc, char *argv[]) {
// sc_report_handler::set_handler(my_report_handler);
scc::Logger<>::reporting_level() = logging::ERROR;
cci::cci_register_broker(new cci_utils::broker("Global Broker"));
///////////////////////////////////////////////////////////////////////////
// CLI argument parsing
///////////////////////////////////////////////////////////////////////////
po::options_description desc("Options");
// clang-format off
desc.add_options()
("help,h", "Print help message")
("verbose,v", po::value<int>()->implicit_value(3), "Sets logging verbosity")
("log-file", po::value<std::string>(), "Sets default log file.")
("disass,d", po::value<std::string>()->implicit_value(""), "Enables disassembly")
("elf,l", po::value<std::string>(), "ELF file to load")
("gdb-port,g", po::value<unsigned short>()->default_value(0), "enable gdb server and specify port to use")
("dump-ir", "dump the intermediate representation")
("quantum", po::value<unsigned>(), "SystemC quantum time in ns")
("reset,r", po::value<std::string>(), "reset address")
("trace,t", po::value<unsigned>()->default_value(0), "enable tracing, or combintation of 1=signals and 2=TX text, 4=TX compressed text, 6=TX in SQLite")
("max_time,m", po::value<std::string>(), "maximum time to run")
("config-file,c", po::value<std::string>()->default_value(""), "read configuration from file")
("dump-config", po::value<std::string>()->default_value(""), "dump configuration to file file");
// clang-format on
po::variables_map vm;
try {
po::store(po::parse_command_line(argc, argv, desc), vm); // can throw
// --help option
if (vm.count("help")) {
std::cout << "DBT-RISE-RiscV simulator for RISC-V" << std::endl << desc << std::endl;
return SUCCESS;
}
po::notify(vm); // throws on error, so do after help in case
// there are any problems
} catch (po::error &e) {
std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
std::cerr << desc << std::endl;
return ERROR_IN_COMMAND_LINE;
}
if (vm.count("verbose")) {
auto l = logging::as_log_level(vm["verbose"].as<int>());
LOGGER(DEFAULT)::reporting_level() = l;
LOGGER(connection)::reporting_level() = l;
LOGGER(SystemC)::reporting_level() = l;
scc::Logger<>::reporting_level() = l;
}
if (vm.count("log-file")) {
// configure the connection logger
auto f = fopen(vm["log-file"].as<std::string>().c_str(), "w");
LOG_OUTPUT(DEFAULT)::stream() = f;
LOG_OUTPUT(connection)::stream() = f;
LOG_OUTPUT(SystemC)::stream() = f;
}
///////////////////////////////////////////////////////////////////////////
// set up infrastructure
///////////////////////////////////////////////////////////////////////////
iss::init_jit(argc, argv);
///////////////////////////////////////////////////////////////////////////
// set up tracing & transaction recording
///////////////////////////////////////////////////////////////////////////
auto trace_val = vm["trace"].as<unsigned>();
scc::tracer trace("simple_system", static_cast<scc::tracer::file_type>(trace_val >> 1), trace_val != 0);
///////////////////////////////////////////////////////////////////////////
// set up configuration
///////////////////////////////////////////////////////////////////////////
scc::configurer cfg(vm["config-file"].as<std::string>());
///////////////////////////////////////////////////////////////////////////
// instantiate top level
///////////////////////////////////////////////////////////////////////////
platform i_simple_system("i_simple_system");
// sr_report_handler::add_sc_object_to_filter(&i_simple_system.i_master,
// sc_core::SC_WARNING, sc_core::SC_MEDIUM);
if(vm["dump-config"].as<std::string>().size()>0){
std::ofstream of{vm["dump-config"].as<std::string>()};
if(of.is_open())
cfg.dump_configuration(of);
}
cfg.configure();
// overwrite with command line settings
if (vm["gdb-port"].as<unsigned short>())
cfg.set_value("i_simple_system.i_core_complex.gdb_server_port", vm["gdb-port"].as<unsigned short>());
if (vm.count("dump-ir"))
cfg.set_value("i_simple_system.i_core_complex.dump_ir", vm.count("dump-ir") != 0);
if (vm.count("elf"))
cfg.set_value("i_simple_system.i_core_complex.elf_file", vm["elf"].as<std::string>());
if (vm.count("quantum"))
tlm::tlm_global_quantum::instance().set(sc_core::sc_time(vm["quantum"].as<unsigned>(), sc_core::SC_NS));
if (vm.count("reset")) {
auto str = vm["reset"].as<std::string>();
uint64_t start_address = str.find("0x") == 0 ? std::stoull(str.substr(2), 0, 16) : std::stoull(str, 0, 10);
cfg.set_value("i_simple_system.i_core_complex.reset_address", start_address);
}
if (vm.count("disass")) {
cfg.set_value("i_simple_system.i_core_complex.enable_disass", true);
LOGGER(disass)::reporting_level() = logging::INFO;
auto file_name = vm["disass"].as<std::string>();
if (file_name.length() > 0) {
LOG_OUTPUT(disass)::stream() = fopen(file_name.c_str(), "w");
LOGGER(disass)::print_time() = false;
LOGGER(disass)::print_severity() = false;
}
}
///////////////////////////////////////////////////////////////////////////
// run simulation
///////////////////////////////////////////////////////////////////////////
if(vm.count("max_time")){
sc_core::sc_time max_time = scc::parse_from_string(vm["max_time"].as<std::string>());
sc_core::sc_start(max_time);
} else
sc_core::sc_start();
if (!sc_core::sc_end_of_simulation_invoked()) sc_core::sc_stop();
return 0;
}