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Diffstat (limited to 'tools/v4/main.cpp')
| -rw-r--r-- | tools/v4/main.cpp | 402 |
1 files changed, 402 insertions, 0 deletions
diff --git a/tools/v4/main.cpp b/tools/v4/main.cpp new file mode 100644 index 0000000000..e61931cea4 --- /dev/null +++ b/tools/v4/main.cpp @@ -0,0 +1,402 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the V4VM module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifdef QMLJS_WITH_LLVM +# include "private/qv4_llvm_p.h" +#endif // QMLJS_WITH_LLVM + +#include "private/debugging.h" +#include "private/qv4object.h" +#include "private/qv4runtime.h" +#include "private/qv4functionobject.h" +#include "private/qv4errorobject.h" +#include "private/qv4globalobject.h" +#include "private/qv4codegen_p.h" +#include "private/qv4isel_masm_p.h" +#include "private/qv4isel_moth_p.h" +#include "private/qv4vme_moth_p.h" +#include "private/qv4syntaxchecker_p.h" +#include "private/qv4objectproto.h" +#include "private/qv4isel_p.h" +#include "private/qv4mm.h" +#include "private/qv4context.h" + +#include <QtCore> +#include <private/qqmljsengine_p.h> +#include <private/qqmljslexer_p.h> +#include <private/qqmljsparser_p.h> +#include <private/qqmljsast_p.h> + +#include <iostream> + +namespace builtins { + +using namespace QQmlJS::VM; + +struct Print: FunctionObject +{ + Print(ExecutionContext *scope): FunctionObject(scope) { + vtbl = &static_vtbl; + name = scope->engine->newString("print"); + } + + static Value call(Managed *, ExecutionContext *ctx, const Value &, Value *args, int argc) + { + for (int i = 0; i < argc; ++i) { + String *s = args[i].toString(ctx); + if (i) + std::cout << ' '; + std::cout << qPrintable(s->toQString()); + } + std::cout << std::endl; + return Value::undefinedValue(); + } + + static const ManagedVTable static_vtbl; +}; + +DEFINE_MANAGED_VTABLE(Print); + +struct GC: public FunctionObject +{ + GC(ExecutionContext* scope) + : FunctionObject(scope) + { + vtbl = &static_vtbl; + name = scope->engine->newString("gc"); + } + static Value call(Managed *, ExecutionContext *ctx, const Value &, Value *, int) + { + ctx->engine->memoryManager->runGC(); + return Value::undefinedValue(); + } + + static const ManagedVTable static_vtbl; +}; + +DEFINE_MANAGED_VTABLE(GC); + +} // builtins + +static void showException(QQmlJS::VM::ExecutionContext *ctx, const QQmlJS::VM::Value &exception) +{ + QQmlJS::VM::ErrorObject *e = exception.asErrorObject(); + if (!e) { + std::cerr << "Uncaught exception: " << qPrintable(exception.toString(ctx)->toQString()) << std::endl; + return; + } + + if (QQmlJS::VM::SyntaxErrorObject *err = e->asSyntaxError()) { + QQmlJS::VM::DiagnosticMessage *msg = err->message(); + if (!msg) { + std::cerr << "Uncaught exception: Syntax error" << std::endl; + return; + } + + for (; msg; msg = msg->next) { + std::cerr << qPrintable(msg->buildFullMessage(ctx)->toQString()) << std::endl; + } + } else { + std::cerr << "Uncaught exception: " << qPrintable(e->get(ctx, ctx->engine->newString(QStringLiteral("message")), 0).toString(ctx)->toQString()) << std::endl; + } +} + +#ifdef QMLJS_WITH_LLVM +int executeLLVMCode(void *codePtr) +{ + using namespace QQmlJS; + + if (!codePtr) + return EXIT_FAILURE; + void (*code)(VM::ExecutionContext *) = (void (*)(VM::ExecutionContext *)) codePtr; + + QScopedPointer<QQmlJS::EvalISelFactory> iSelFactory(new QQmlJS::Moth::ISelFactory); + VM::ExecutionEngine vm(iSelFactory.data()); + VM::ExecutionContext *ctx = vm.rootContext; + +#if THIS_NEEDS_TO_BE_FIXED + QQmlJS::VM::Object *globalObject = vm.globalObject.objectValue(); + globalObject->__put__(ctx, vm.newIdentifier(QStringLiteral("print")), + QQmlJS::VM::Value::fromObject(new (ctx->engine->memoryManager) builtins::Print(ctx))); + + void * buf = __qmljs_create_exception_handler(ctx); + if (setjmp(*(jmp_buf *)buf)) { + showException(ctx); + return EXIT_FAILURE; + } + + code(ctx); +#else + Q_UNUSED(ctx); + Q_UNUSED(code); +#endif + return EXIT_SUCCESS; +} + +int compile(const QString &fileName, const QString &source, QQmlJS::LLVMOutputType outputType) +{ + using namespace QQmlJS; + + IR::Module module; + QQmlJS::Engine ee, *engine = ⅇ + Lexer lexer(engine); + lexer.setCode(source, 1, false); + Parser parser(engine); + + const bool parsed = parser.parseProgram(); + + foreach (const DiagnosticMessage &m, parser.diagnosticMessages()) { + std::cerr << qPrintable(fileName) << ':' + << m.loc.startLine << ':' + << m.loc.startColumn << ": error: " + << qPrintable(m.message) << std::endl; + } + + if (!parsed) + return EXIT_FAILURE; + + using namespace AST; + Program *program = AST::cast<Program *>(parser.rootNode()); + + class MyErrorHandler: public ErrorHandler { + public: + virtual void syntaxError(QQmlJS::VM::DiagnosticMessage *message) { + for (; message; message = message->next) { + std::cerr << qPrintable(message->fileName) << ':' + << message->startLine << ':' + << message->startColumn << ": " + << (message->type == QQmlJS::VM::DiagnosticMessage::Error ? "error" : "warning") << ": " + << qPrintable(message->message) << std::endl; + } + } + } errorHandler; + + Codegen cg(&errorHandler, false); + // FIXME: if the program is empty, we should we generate an empty %entry, or give an error? + /*IR::Function *globalCode =*/ cg(fileName, source, program, &module); + + int (*exec)(void *) = outputType == LLVMOutputJit ? executeLLVMCode : 0; + return compileWithLLVM(&module, fileName, outputType, exec); +} + +int compileFiles(const QStringList &files, QQmlJS::LLVMOutputType outputType) +{ + foreach (const QString &fileName, files) { + QFile file(fileName); + if (file.open(QFile::ReadOnly)) { + QString source = QString::fromUtf8(file.readAll()); + int result = compile(fileName, source, outputType); + if (result != EXIT_SUCCESS) + return result; + } else { + std::cerr << "Error: cannot open file " << fileName.toUtf8().constData() << std::endl; + return EXIT_FAILURE; + } + } + return EXIT_SUCCESS; +} + +int evaluateCompiledCode(const QStringList &files) +{ + using namespace QQmlJS; + + foreach (const QString &libName, files) { + QFileInfo libInfo(libName); + QLibrary lib(libInfo.absoluteFilePath()); + lib.load(); + QFunctionPointer ptr = lib.resolve("%entry"); +// qDebug("_%%entry resolved to address %p", ptr); + int result = executeLLVMCode((void *) ptr); + if (result != EXIT_SUCCESS) + return result; + } + + return EXIT_SUCCESS; +} +#endif // QMLJS_WITH_LLVM + + +int main(int argc, char *argv[]) +{ + QCoreApplication app(argc, argv); + QStringList args = app.arguments(); + args.removeFirst(); + + enum { + use_masm, + use_moth, + use_llvm_compiler, + use_llvm_runtime, + use_llvm_jit + } mode = use_masm; + +#ifdef QMLJS_WITH_LLVM + QQmlJS::LLVMOutputType fileType = QQmlJS::LLVMOutputObject; +#endif // QMLJS_WITH_LLVM + bool enableDebugging = false; + + if (!args.isEmpty()) { + if (args.first() == QLatin1String("-d") || args.first() == QLatin1String("--debug")) { + enableDebugging = true; + args.removeFirst(); + } + } + + if (!args.isEmpty()) { + if (args.first() == QLatin1String("--jit")) { + mode = use_masm; + args.removeFirst(); + } + + if (args.first() == QLatin1String("--interpret")) { + mode = use_moth; + args.removeFirst(); + } + +#ifdef QMLJS_WITH_LLVM + if (args.first() == QLatin1String("--compile")) { + mode = use_llvm_compiler; + args.removeFirst(); + + if (!args.isEmpty() && args.first() == QLatin1String("-t")) { + args.removeFirst(); + // Note: keep this list in sync with the enum! + static QStringList fileTypes = QStringList() << QLatin1String("ll") << QLatin1String("bc") << QLatin1String("asm") << QLatin1String("obj"); + if (args.isEmpty() || !fileTypes.contains(args.first())) { + std::cerr << "file types: ll, bc, asm, obj" << std::endl; + return EXIT_FAILURE; + } + fileType = (QQmlJS::LLVMOutputType) fileTypes.indexOf(args.first()); + args.removeFirst(); + } + } + + if (args.first() == QLatin1String("--aot")) { + mode = use_llvm_runtime; + args.removeFirst(); + } + + if (args.first() == QLatin1String("--llvm-jit")) { + mode = use_llvm_jit; + args.removeFirst(); + } +#endif // QMLJS_WITH_LLVM + if (args.first() == QLatin1String("--help")) { + std::cerr << "Usage: v4 [|--debug|-d] [|--jit|--interpret|--compile|--aot|--llvm-jit] file..." << std::endl; + return EXIT_SUCCESS; + } + } + + switch (mode) { +#ifdef QMLJS_WITH_LLVM + case use_llvm_jit: + return compileFiles(args, QQmlJS::LLVMOutputJit); + case use_llvm_compiler: + return compileFiles(args, fileType); + case use_llvm_runtime: + return evaluateCompiledCode(args); +#else // !QMLJS_WITH_LLVM + case use_llvm_compiler: + case use_llvm_runtime: + case use_llvm_jit: + std::cerr << "LLVM backend was not built, compiler is unavailable." << std::endl; + return EXIT_FAILURE; +#endif // QMLJS_WITH_LLVM + case use_masm: + case use_moth: { + QQmlJS::EvalISelFactory* iSelFactory = 0; + if (mode == use_moth) { + iSelFactory = new QQmlJS::Moth::ISelFactory; + } else { + iSelFactory = new QQmlJS::MASM::ISelFactory; + } + + QQmlJS::VM::ExecutionEngine vm(iSelFactory); + + QScopedPointer<QQmlJS::Debugging::Debugger> debugger; + if (enableDebugging) + debugger.reset(new QQmlJS::Debugging::Debugger(&vm)); + vm.debugger = debugger.data(); + + QQmlJS::VM::ExecutionContext *ctx = vm.rootContext; + + QQmlJS::VM::Object *globalObject = vm.globalObject; + QQmlJS::VM::Object *print = new (ctx->engine->memoryManager) builtins::Print(ctx); + print->prototype = ctx->engine->objectPrototype; + globalObject->put(ctx, vm.newIdentifier(QStringLiteral("print")), + QQmlJS::VM::Value::fromObject(print)); + QQmlJS::VM::Object *gc = new (ctx->engine->memoryManager) builtins::GC(ctx); + gc->prototype = ctx->engine->objectPrototype; + globalObject->put(ctx, vm.newIdentifier(QStringLiteral("gc")), + QQmlJS::VM::Value::fromObject(gc)); + + foreach (const QString &fn, args) { + QFile file(fn); + if (file.open(QFile::ReadOnly)) { + const QString code = QString::fromUtf8(file.readAll()); + file.close(); + + try { + QQmlJS::VM::Function *f = QQmlJS::VM::EvalFunction::parseSource(ctx, fn, code, QQmlJS::Codegen::GlobalCode, + /*strictMode =*/ false, /*inheritContext =*/ false); + if (!f) + continue; + QQmlJS::VM::Value result = vm.run(f); + if (!result.isUndefined()) { + if (! qgetenv("SHOW_EXIT_VALUE").isEmpty()) + std::cout << "exit value: " << qPrintable(result.toString(ctx)->toQString()) << std::endl; + } + } catch (QQmlJS::VM::Exception& ex) { + ex.accept(ctx); + showException(ctx, ex.value()); + return EXIT_FAILURE; + } + + } else { + std::cerr << "Error: cannot open file " << fn.toUtf8().constData() << std::endl; + return EXIT_FAILURE; + } + } + + vm.memoryManager->dumpStats(); + } return EXIT_SUCCESS; + } // switch (mode) +} |