Added command parser and common implementation

1 files changed, 246 insertions, 0 deletions

diff --git a/common/command.cc b/common/command.cc
new file mode 100644
index 00000000..aae7ed36
--- /dev/null
+++ b/common/command.cc
@@ -0,0 +1,246 @@
+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2018  Clifford Wolf <clifford@symbioticeda.com>
+ *  Copyright (C) 2018  Miodrag Milanovic <miodrag@symbioticeda.com>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#ifndef NO_GUI
+#include <QApplication>
+#include "application.h"
+#include "mainwindow.h"
+#endif
+#ifndef NO_PYTHON
+#include "pybindings.h"
+#endif
+
+#include <boost/filesystem/convenience.hpp>
+#include <boost/program_options.hpp>
+#include <fstream>
+#include <iostream>
+#include "command.h"
+#include "design_utils.h"
+#include "jsonparse.h"
+#include "log.h"
+#include "version.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+CommandHandler::CommandHandler(int argc, char **argv) : argc(argc), argv(argv) { log_files.push_back(stdout); }
+
+bool CommandHandler::parseOptions()
+{
+    options.add(getGeneralOptions()).add(getArchOptions());
+    try {
+        po::parsed_options parsed =
+                po::command_line_parser(argc, argv)
+                        .style(po::command_line_style::default_style ^ po::command_line_style::allow_guessing)
+                        .options(options)
+                        .positional(pos)
+                        .run();
+        po::store(parsed, vm);
+        po::notify(vm);
+        return true;
+    } catch (std::exception &e) {
+        std::cout << e.what() << "\n";
+        return false;
+    }
+}
+
+bool CommandHandler::executeBeforeContext()
+{
+    if (vm.count("help") || argc == 1) {
+        std::cout << boost::filesystem::basename(argv[0])
+                  << " -- Next Generation Place and Route (git sha1 " GIT_COMMIT_HASH_STR ")\n";
+        std::cout << options << "\n";
+        return argc != 1;
+    }
+
+    if (vm.count("version")) {
+        std::cout << boost::filesystem::basename(argv[0])
+                  << " -- Next Generation Place and Route (git sha1 " GIT_COMMIT_HASH_STR ")\n";
+        return true;
+    }
+    validate();
+    return false;
+}
+
+po::options_description CommandHandler::getGeneralOptions()
+{
+    po::options_description general("General options");
+    general.add_options()("help,h", "show help");
+    general.add_options()("verbose,v", "verbose output");
+    general.add_options()("debug", "debug output");
+    general.add_options()("force,f", "keep running after errors");
+#ifndef NO_GUI
+    general.add_options()("gui", "start gui");
+#endif
+#ifndef NO_PYTHON
+    general.add_options()("run", po::value<std::vector<std::string>>(), "python file to execute");
+    pos.add("run", -1);
+#endif
+    general.add_options()("json", po::value<std::string>(), "JSON design file to ingest");
+    general.add_options()("seed", po::value<int>(), "seed value for random number generator");
+    general.add_options()("slack_redist_iter", po::value<int>(), "number of iterations between slack redistribution");
+    general.add_options()("cstrweight", po::value<float>(), "placer weighting for relative constraint satisfaction");
+
+    general.add_options()("version,V", "show version");
+    general.add_options()("test", "check architecture database integrity");
+    general.add_options()("freq", po::value<double>(), "set target frequency for design in MHz");
+    general.add_options()("no-tmdriv", "disable timing-driven placement");
+    general.add_options()("save", po::value<std::string>(), "project file to write");
+    general.add_options()("load", po::value<std::string>(), "project file to read");
+    return general;
+}
+
+void CommandHandler::setupContext(Context *ctx)
+{
+    if (vm.count("verbose")) {
+        ctx->verbose = true;
+    }
+
+    if (vm.count("debug")) {
+        ctx->verbose = true;
+        ctx->debug = true;
+    }
+
+    if (vm.count("force")) {
+        ctx->force = true;
+    }
+
+    if (vm.count("seed")) {
+        ctx->rngseed(vm["seed"].as<int>());
+    }
+
+    if (vm.count("slack_redist_iter")) {
+        ctx->slack_redist_iter = vm["slack_redist_iter"].as<int>();
+        if (vm.count("freq") && vm["freq"].as<double>() == 0) {
+            ctx->auto_freq = true;
+#ifndef NO_GUI
+            if (!vm.count("gui"))
+#endif
+                log_warning("Target frequency not specified. Will optimise for max frequency.\n");
+        }
+    }
+
+    if (vm.count("cstrweight")) {
+        // ctx->placer_constraintWeight = vm["cstrweight"].as<float>();
+    }
+
+    if (vm.count("freq")) {
+        auto freq = vm["freq"].as<double>();
+        if (freq > 0)
+            ctx->target_freq = freq * 1e6;
+    }
+
+    ctx->timing_driven = true;
+    if (vm.count("no-tmdriv"))
+        ctx->timing_driven = false;
+}
+
+int CommandHandler::executeMain(std::unique_ptr<Context> ctx)
+{
+    if (vm.count("test")) {
+        ctx->archcheck();
+        return 0;
+    }
+
+#ifndef NO_GUI
+    if (vm.count("gui")) {
+        Application a(argc, argv);
+        MainWindow w(std::move(ctx), chipArgs);
+        try {
+            if (vm.count("json")) {
+                std::string filename = vm["json"].as<std::string>();
+                std::ifstream f(filename);
+                if (!parse_json_file(f, filename, w.getContext()))
+                    log_error("Loading design failed.\n");
+
+                customAfterLoad(w.getContext());
+            }
+        } catch (log_execution_error_exception) {
+            // show error is handled by gui itself
+        }
+        w.show();
+
+        return a.exec();
+    }
+#endif
+    if (vm.count("json")) {
+        std::string filename = vm["json"].as<std::string>();
+        std::ifstream f(filename);
+        if (!parse_json_file(f, filename, ctx.get()))
+            log_error("Loading design failed.\n");
+
+        customAfterLoad(ctx.get());
+
+        if (!ctx->pack() && !ctx->force)
+            log_error("Packing design failed.\n");
+        ctx->check();
+        print_utilisation(ctx.get());
+        if (!vm.count("pack-only")) {
+            if (!ctx->place() && !ctx->force)
+                log_error("Placing design failed.\n");
+            ctx->check();
+            if (!ctx->route() && !ctx->force)
+                log_error("Routing design failed.\n");
+        }
+
+        customBitstream(ctx.get());
+    }
+
+#ifndef NO_PYTHON
+    if (vm.count("run")) {
+        init_python(argv[0], true);
+        python_export_global("ctx", *ctx);
+
+        std::vector<std::string> files = vm["run"].as<std::vector<std::string>>();
+        for (auto filename : files)
+            execute_python_file(filename.c_str());
+
+        deinit_python();
+    }
+#endif
+    return 0;
+}
+
+void CommandHandler::conflicting_options(const boost::program_options::variables_map &vm, const char *opt1,
+                                         const char *opt2)
+{
+    if (vm.count(opt1) && !vm[opt1].defaulted() && vm.count(opt2) && !vm[opt2].defaulted()) {
+        std::string msg = "Conflicting options '" + std::string(opt1) + "' and '" + std::string(opt2) + "'.";
+        log_error("%s\n", msg.c_str());
+    }
+}
+
+int CommandHandler::exec()
+{
+    try {
+        if (!parseOptions())
+            return -1;
+
+        if (executeBeforeContext())
+            return 0;
+        std::unique_ptr<Context> ctx = createContext();
+        setupContext(ctx.get());
+        setupArchContext(ctx.get());
+        return executeMain(std::move(ctx));
+    } catch (log_execution_error_exception) {
+        return -1;
+    }
+}
+
+NEXTPNR_NAMESPACE_END