DBT-RISE-TGC/riscv/src/main.cpp

188 lines
8.6 KiB
C++

/*******************************************************************************
* 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 <iostream>
#include <iss/iss.h>
#include <boost/lexical_cast.hpp>
#include <boost/program_options.hpp>
#include <iss/arch/riscv_hart_msu_vp.h>
#include <iss/arch/rv32imac.h>
#include <iss/arch/rv32gc.h>
#include <iss/arch/rv64ia.h>
#include <iss/llvm/jit_helper.h>
#include <iss/log_categories.h>
#include <iss/plugin/cycle_estimate.h>
#include <iss/plugin/instruction_count.h>
namespace po = boost::program_options;
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<int>()->implicit_value(0), "Sets logging verbosity")
("logfile,f", po::value<std::string>(), "Sets default log file.")
("disass,d", po::value<std::string>()->implicit_value(""), "Enables disassembly")
("gdb-port,g", po::value<unsigned>()->default_value(0), "enable gdb server and specify port to use")
("instructions,i", po::value<uint64_t>()->default_value(std::numeric_limits<uint64_t>::max()), "max. number of instructions to simulate")
("reset,r", po::value<std::string>(), "reset address")
("dump-ir", "dump the intermediate representation")
("elf", po::value<std::vector<std::string>>(), "ELF file(s) to load")
("mem,m", po::value<std::string>(), "the memory input file")
("plugin,p", po::value<std::vector<std::string>>(), "plugin to activate")
("isa", po::value<std::string>()->default_value("rv32gc"), "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<std::string> args = collect_unrecognized(parsed.options, po::include_positional);
if (clim.count("verbose")) {
auto l = logging::as_log_level(clim["verbose"].as<int>());
LOGGER(DEFAULT)::reporting_level() = l;
LOGGER(connection)::reporting_level() = l;
}
if (clim.count("logfile")) {
// configure the connection logger
auto f = fopen(clim["logfile"].as<std::string>().c_str(), "w");
LOG_OUTPUT(DEFAULT)::stream() = f;
LOG_OUTPUT(connection)::stream() = f;
}
std::vector<iss::vm_plugin *> plugin_list;
auto res = 0;
try {
// application code comes here //
iss::init_jit(argc, argv);
bool dump = clim.count("dump-ir");
// instantiate the simulator
std::unique_ptr<iss::vm_if> vm{nullptr};
std::unique_ptr<iss::arch_if> cpu{nullptr};
std::string isa_opt(clim["isa"].as<std::string>());
if (isa_opt=="rv64ia") {
iss::arch::rv64ia* lcpu = new iss::arch::riscv_hart_msu_vp<iss::arch::rv64ia>();
vm = iss::create(lcpu, clim["gdb-port"].as<unsigned>());
cpu.reset(lcpu);
} else if (isa_opt=="rv32imac") {
iss::arch::rv32imac* lcpu = new iss::arch::riscv_hart_msu_vp<iss::arch::rv32imac>();
vm = iss::create(lcpu, clim["gdb-port"].as<unsigned>());
cpu.reset(lcpu);
} else if (isa_opt=="rv32gc") {
iss::arch::rv32gc* lcpu = new iss::arch::riscv_hart_msu_vp<iss::arch::rv32gc>();
vm = iss::create(lcpu, clim["gdb-port"].as<unsigned>());
cpu.reset(lcpu);
} else {
LOG(ERROR) << "Illegal argument value for '--isa': " << clim["isa"].as<std::string>() << std::endl;
return 127;
}
if (clim.count("plugin")) {
for (std::string opt_val : clim["plugin"].as<std::vector<std::string>>()) {
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;
auto file_name = clim["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;
}
}
uint64_t start_address = 0;
if (clim.count("mem"))
vm->get_arch()->load_file(clim["mem"].as<std::string>(), iss::arch::traits<iss::arch::rv32imac>::MEM);
if (clim.count("elf"))
for (std::string input : clim["elf"].as<std::vector<std::string>>()) {
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<std::string>();
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<uint64_t>();
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;
}