Examples with DebugCloseable com.oracle.truffle.espresso.perf.DebugCloseable used on opensource projects

Example 6 with DebugCloseable

use of com.oracle.truffle.espresso.perf.DebugCloseable in project graal by oracle.

the class EspressoContext method spawnVM.

@SuppressWarnings("try")
private void spawnVM() {
    try (DebugCloseable spawn = SPAWN_VM.scope(timers)) {
        long initStartTimeNanos = System.nanoTime();
        this.nativeAccess = spawnNativeAccess();
        initVmProperties();
        // Spawn JNI first, then the VM.
        try (DebugCloseable vmInit = VM_INIT.scope(timers)) {
            // Mokapot is loaded
            this.vm = VM.create(getJNI());
            vm.attachThread(Thread.currentThread());
        }
        if (getJavaVersion().modulesEnabled()) {
            registries.initJavaBaseModule();
            registries.getBootClassRegistry().initUnnamedModule(StaticObject.NULL);
        }
        // TODO: link libjimage
        initializeAgents();
        try (DebugCloseable metaInit = META_INIT.scope(timers)) {
            this.meta = new Meta(this);
        }
        this.metaInitialized = true;
        this.threads = new ThreadsAccess(meta);
        this.blockingSupport = BlockingSupport.create(threads);
        this.interpreterToVM = new InterpreterToVM(this);
        try (DebugCloseable knownClassInit = KNOWN_CLASS_INIT.scope(timers)) {
            initializeKnownClass(Type.java_lang_Object);
            for (Symbol<Type> type : Arrays.asList(Type.java_lang_String, Type.java_lang_System, // JDK-8069005
            Type.java_lang_Class, Type.java_lang_ThreadGroup, Type.java_lang_Thread)) {
                initializeKnownClass(type);
            }
        }
        if (meta.jdk_internal_misc_UnsafeConstants != null) {
            initializeKnownClass(Type.jdk_internal_misc_UnsafeConstants);
            UnsafeAccess.initializeGuestUnsafeConstants(meta);
        }
        // Create main thread as soon as Thread class is initialized.
        threadRegistry.createMainThread(meta);
        try (DebugCloseable knownClassInit = KNOWN_CLASS_INIT.scope(timers)) {
            initializeKnownClass(Type.java_lang_Object);
            for (Symbol<Type> type : Arrays.asList(Type.java_lang_reflect_Method, Type.java_lang_ref_Finalizer)) {
                initializeKnownClass(type);
            }
        }
        referenceDrainer.initReferenceDrain();
        try (DebugCloseable systemInit = SYSTEM_INIT.scope(timers)) {
            // Call guest initialization
            if (getJavaVersion().java8OrEarlier()) {
                meta.java_lang_System_initializeSystemClass.invokeDirect(null);
            } else {
                assert getJavaVersion().java9OrLater();
                meta.java_lang_System_initPhase1.invokeDirect(null);
                int e = (int) meta.java_lang_System_initPhase2.invokeDirect(null, false, false);
                if (e != 0) {
                    throw EspressoError.shouldNotReachHere();
                }
                getVM().getJvmti().postVmStart();
                modulesInitialized = true;
                meta.java_lang_System_initPhase3.invokeDirect(null);
            }
        }
        getVM().getJvmti().postVmInit();
        meta.postSystemInit();
        try (DebugCloseable knownClassInit = KNOWN_CLASS_INIT.scope(timers)) {
            // System exceptions.
            for (Symbol<Type> type : Arrays.asList(Type.java_lang_OutOfMemoryError, Type.java_lang_NullPointerException, Type.java_lang_ClassCastException, Type.java_lang_ArrayStoreException, Type.java_lang_ArithmeticException, Type.java_lang_StackOverflowError, Type.java_lang_IllegalMonitorStateException, Type.java_lang_IllegalArgumentException)) {
                initializeKnownClass(type);
            }
        }
        // Init memoryError instances
        StaticObject stackOverflowErrorInstance = meta.java_lang_StackOverflowError.allocateInstance();
        StaticObject outOfMemoryErrorInstance = meta.java_lang_OutOfMemoryError.allocateInstance();
        // Preemptively set stack trace.
        meta.HIDDEN_FRAMES.setHiddenObject(stackOverflowErrorInstance, VM.StackTrace.EMPTY_STACK_TRACE);
        meta.java_lang_Throwable_backtrace.setObject(stackOverflowErrorInstance, stackOverflowErrorInstance);
        meta.HIDDEN_FRAMES.setHiddenObject(outOfMemoryErrorInstance, VM.StackTrace.EMPTY_STACK_TRACE);
        meta.java_lang_Throwable_backtrace.setObject(outOfMemoryErrorInstance, outOfMemoryErrorInstance);
        this.stackOverflow = EspressoException.wrap(stackOverflowErrorInstance, meta);
        this.outOfMemory = EspressoException.wrap(outOfMemoryErrorInstance, meta);
        meta.java_lang_StackOverflowError.lookupDeclaredMethod(Name._init_, Signature._void_String).invokeDirect(stackOverflowErrorInstance, meta.toGuestString("VM StackOverFlow"));
        meta.java_lang_OutOfMemoryError.lookupDeclaredMethod(Name._init_, Signature._void_String).invokeDirect(outOfMemoryErrorInstance, meta.toGuestString("VM OutOfMemory"));
        // Create application (system) class loader.
        StaticObject systemClassLoader = null;
        try (DebugCloseable systemLoader = SYSTEM_CLASSLOADER.scope(timers)) {
            systemClassLoader = (StaticObject) meta.java_lang_ClassLoader_getSystemClassLoader.invokeDirect(null);
        }
        topBindings = new EspressoBindings(systemClassLoader, getEnv().getOptions().get(EspressoOptions.ExposeNativeJavaVM));
        initDoneTimeNanos = System.nanoTime();
        long elapsedNanos = initDoneTimeNanos - initStartTimeNanos;
        getLogger().log(Level.FINE, "VM booted in {0} ms", TimeUnit.NANOSECONDS.toMillis(elapsedNanos));
    }
}

Example 7 with DebugCloseable

use of com.oracle.truffle.espresso.perf.DebugCloseable in project graal by oracle.

the class ClassRegistry method createKlass.

@SuppressWarnings("try")
private ObjectKlass createKlass(Meta meta, ParserKlass parserKlass, Symbol<Type> type, Symbol<Type> superKlassType, ClassDefinitionInfo info) {
    EspressoThreadLocalState threadLocalState = meta.getContext().getLanguage().getThreadLocalState();
    TypeStack chain = threadLocalState.getTypeStack();
    ObjectKlass superKlass = null;
    ObjectKlass[] superInterfaces = null;
    LinkedKlass[] linkedInterfaces = null;
    chain.push(type);
    try {
        if (superKlassType != null) {
            if (chain.contains(superKlassType)) {
                throw meta.throwException(meta.java_lang_ClassCircularityError);
            }
            superKlass = loadKlassRecursively(meta, superKlassType, true);
        }
        final Symbol<Type>[] superInterfacesTypes = parserKlass.getSuperInterfaces();
        linkedInterfaces = superInterfacesTypes.length == 0 ? LinkedKlass.EMPTY_ARRAY : new LinkedKlass[superInterfacesTypes.length];
        superInterfaces = superInterfacesTypes.length == 0 ? ObjectKlass.EMPTY_ARRAY : new ObjectKlass[superInterfacesTypes.length];
        for (int i = 0; i < superInterfacesTypes.length; ++i) {
            if (chain.contains(superInterfacesTypes[i])) {
                throw meta.throwException(meta.java_lang_ClassCircularityError);
            }
            ObjectKlass interf = loadKlassRecursively(meta, superInterfacesTypes[i], false);
            superInterfaces[i] = interf;
            linkedInterfaces[i] = interf.getLinkedKlass();
        }
    } finally {
        chain.pop();
    }
    if (getContext().getJavaVersion().java16OrLater() && superKlass != null) {
        if (superKlass.isFinalFlagSet()) {
            throw meta.throwExceptionWithMessage(meta.java_lang_IncompatibleClassChangeError, "class " + type + " is a subclass of final class " + superKlassType);
        }
    }
    ObjectKlass klass;
    try (DebugCloseable define = KLASS_DEFINE.scope(context.getTimers())) {
        // FIXME(peterssen): Do NOT create a LinkedKlass every time, use a global cache.
        ContextDescription description = new ContextDescription(context.getLanguage(), context.getJavaVersion());
        LinkedKlass linkedKlass = LinkedKlass.create(description, parserKlass, superKlass == null ? null : superKlass.getLinkedKlass(), linkedInterfaces);
        klass = new ObjectKlass(context, linkedKlass, superKlass, superInterfaces, getClassLoader(), info);
    }
    if (superKlass != null) {
        if (!Klass.checkAccess(superKlass, klass)) {
            throw meta.throwExceptionWithMessage(meta.java_lang_IllegalAccessError, "class " + type + " cannot access its superclass " + superKlassType);
        }
        if (!superKlass.permittedSubclassCheck(klass)) {
            throw meta.throwExceptionWithMessage(meta.java_lang_IncompatibleClassChangeError, "class " + type + " is not a permitted subclass of class " + superKlassType);
        }
    }
    for (ObjectKlass interf : superInterfaces) {
        if (interf != null) {
            if (!Klass.checkAccess(interf, klass)) {
                throw meta.throwExceptionWithMessage(meta.java_lang_IllegalAccessError, "class " + type + " cannot access its superinterface " + interf.getType());
            }
            if (!interf.permittedSubclassCheck(klass)) {
                throw meta.throwExceptionWithMessage(meta.java_lang_IncompatibleClassChangeError, "class " + type + " is not a permitted subclass of interface " + superKlassType);
            }
        }
    }
    return klass;
}

Example 8 with DebugCloseable

use of com.oracle.truffle.espresso.perf.DebugCloseable in project graal by oracle.

the class ClassRegistry method defineKlass.

@SuppressWarnings("try")
public ObjectKlass defineKlass(Symbol<Type> typeOrNull, final byte[] bytes, ClassDefinitionInfo info) {
    Meta meta = getMeta();
    ParserKlass parserKlass;
    try (DebugCloseable parse = KLASS_PARSE.scope(getContext().getTimers())) {
        parserKlass = getParserKlass(bytes, typeOrNull, info);
    }
    Symbol<Type> type = typeOrNull == null ? parserKlass.getType() : typeOrNull;
    if (info.addedToRegistry()) {
        Klass maybeLoaded = findLoadedKlass(type);
        if (maybeLoaded != null) {
            throw meta.throwExceptionWithMessage(meta.java_lang_LinkageError, "Class " + type + " already defined");
        }
    }
    Symbol<Type> superKlassType = parserKlass.getSuperKlass();
    ObjectKlass klass = createKlass(meta, parserKlass, type, superKlassType, info);
    if (info.addedToRegistry()) {
        registerKlass(klass, type);
    } else if (info.isStrongHidden()) {
        registerStrongHiddenClass(klass);
    }
    return klass;
}

Example 9 with DebugCloseable

use of com.oracle.truffle.espresso.perf.DebugCloseable in project graal by oracle.

the class ClassfileParser method parseMethod.

private ParserMethod parseMethod(boolean isInterface) {
    int methodFlags = stream.readU2();
    int nameIndex = stream.readU2();
    int signatureIndex = stream.readU2();
    final Symbol<Name> name;
    final Symbol<Signature> signature;
    int attributeCount;
    Attribute[] methodAttributes;
    int extraFlags = methodFlags;
    boolean isClinit = false;
    boolean isInit = false;
    try (DebugCloseable closeable = METHOD_INIT.scope(context.getTimers())) {
        try (DebugCloseable nameCheck = NAME_CHECK.scope(context.getTimers())) {
            pool.utf8At(nameIndex).validateMethodName(true);
            name = pool.symbolAt(nameIndex, "method name");
            if (name.equals(Name._clinit_)) {
                // ACC_STRICT flag.
                if (majorVersion < JAVA_7_VERSION) {
                    // Backwards compatibility.
                    methodFlags = ACC_STATIC;
                } else if ((methodFlags & ACC_STATIC) == ACC_STATIC) {
                    methodFlags &= (ACC_STRICT | ACC_STATIC);
                } else if (context.getJavaVersion().java9OrLater()) {
                    throw ConstantPool.classFormatError("Method <clinit> is not static.");
                }
                // extraFlags = INITIALIZER | methodFlags;
                isClinit = true;
            } else if (name.equals(Name._init_)) {
                if (isInterface) {
                    throw ConstantPool.classFormatError("Method <init> is not valid in an interface.");
                }
                isInit = true;
            }
        }
        final boolean isStatic = Modifier.isStatic(extraFlags);
        verifyMethodFlags(methodFlags, isInterface, isInit, isClinit, majorVersion);
        /*
             * A method is a class or interface initialization method if all of the following are
             * true:
             *
             * It has the special name <clinit>.
             *
             * It is void (4.3.3). (checked earlier)
             *
             * In a class file whose version number is 51.0 or above, the method has its ACC_STATIC
             * flag set and takes no arguments (4.6).
             */
        try (DebugCloseable signatureCheck = SIGNATURE_CHECK.scope(context.getTimers())) {
            // Checks for void method if init or clinit.
            /*
                 * Obtain slot number for the signature. Forces a validation, but better in startup
                 * than going twice through the sequence, once for validation, once for slots.
                 */
            int slots = pool.utf8At(signatureIndex).validateSignatureGetSlots(isInit || isClinit);
            signature = Signatures.check(pool.symbolAt(signatureIndex, "method descriptor"));
            if (isClinit && majorVersion >= JAVA_7_VERSION) {
                // Checks clinit takes no arguments.
                if (!signature.equals(Signature._void)) {
                    throw ConstantPool.classFormatError("Method <clinit> has invalid signature: " + signature);
                }
            }
            if (slots + (isStatic ? 0 : 1) > 255) {
                throw ConstantPool.classFormatError("Too many arguments in method signature: " + signature);
            }
            if (name.equals(Name.finalize) && signature.equals(Signature._void) && !Modifier.isStatic(methodFlags) && !Type.java_lang_Object.equals(classType)) {
                // This class has a finalizer method implementation (ignore for
                // java.lang.Object).
                classFlags |= ACC_FINALIZER;
            }
        }
        attributeCount = stream.readU2();
        methodAttributes = spawnAttributesArray(attributeCount);
    }
    CodeAttribute codeAttribute = null;
    Attribute checkedExceptions = null;
    Attribute runtimeVisibleAnnotations = null;
    CommonAttributeParser commonAttributeParser = new CommonAttributeParser(InfoType.Method);
    MethodParametersAttribute methodParameters = null;
    for (int i = 0; i < attributeCount; ++i) {
        final int attributeNameIndex = stream.readU2();
        final Symbol<Name> attributeName = pool.symbolAt(attributeNameIndex, "attribute name");
        final int attributeSize = stream.readS4();
        final int startPosition = stream.getPosition();
        if (attributeName.equals(Name.Code)) {
            if (codeAttribute != null) {
                throw ConstantPool.classFormatError("Duplicate Code attribute");
            }
            try (DebugCloseable code = CODE_PARSE.scope(context.getTimers())) {
                methodAttributes[i] = codeAttribute = parseCodeAttribute(attributeName);
            }
        } else if (attributeName.equals(Name.Exceptions)) {
            if (checkedExceptions != null) {
                throw ConstantPool.classFormatError("Duplicate Exceptions attribute");
            }
            methodAttributes[i] = checkedExceptions = parseExceptions(attributeName);
        } else if (attributeName.equals(Name.Synthetic)) {
            methodFlags |= ACC_SYNTHETIC;
            methodAttributes[i] = checkedExceptions = new Attribute(attributeName, null);
        } else if (majorVersion >= JAVA_1_5_VERSION) {
            if (attributeName.equals(Name.RuntimeVisibleAnnotations)) {
                if (runtimeVisibleAnnotations != null) {
                    throw ConstantPool.classFormatError("Duplicate RuntimeVisibleAnnotations attribute");
                }
                // Check if java.lang.invoke.LambdaForm.Compiled is present here.
                byte[] data = stream.readByteArray(attributeSize);
                ClassfileStream subStream = new ClassfileStream(data, this.classfile);
                int count = subStream.readU2();
                for (int j = 0; j < count; j++) {
                    int typeIndex = parseAnnotation(subStream);
                    Utf8Constant constant = pool.utf8At(typeIndex, "annotation type");
                    // Validation of the type is done at runtime by guest java code.
                    Symbol<Type> annotType = constant.value();
                    if (Type.java_lang_invoke_LambdaForm$Compiled.equals(annotType)) {
                        methodFlags |= ACC_LAMBDA_FORM_COMPILED;
                    } else if (Type.java_lang_invoke_LambdaForm$Hidden.equals(annotType) || Type.jdk_internal_vm_annotation_Hidden.equals(annotType)) {
                        methodFlags |= ACC_HIDDEN;
                    } else if (Type.sun_reflect_CallerSensitive.equals(annotType) || Type.jdk_internal_reflect_CallerSensitive.equals(annotType)) {
                        methodFlags |= ACC_CALLER_SENSITIVE;
                    }
                }
                methodAttributes[i] = runtimeVisibleAnnotations = new Attribute(attributeName, data);
            } else if (attributeName.equals(Name.MethodParameters)) {
                if (methodParameters != null) {
                    throw ConstantPool.classFormatError("Duplicate MethodParameters attribute");
                }
                methodAttributes[i] = methodParameters = parseMethodParameters(attributeName);
            } else {
                Attribute attr = commonAttributeParser.parseCommonAttribute(attributeName, attributeSize);
                // stream.skip(attributeSize);
                methodAttributes[i] = attr == null ? new Attribute(attributeName, stream.readByteArray(attributeSize)) : attr;
            }
        } else {
            // stream.skip(attributeSize);
            methodAttributes[i] = new Attribute(attributeName, stream.readByteArray(attributeSize));
        }
        final int distance = stream.getPosition() - startPosition;
        if (attributeSize != distance) {
            final String message = "Invalid attribute_length for " + attributeName + " attribute (reported " + attributeSize + " != parsed " + distance + ")";
            throw ConstantPool.classFormatError(message);
        }
    }
    if (Modifier.isAbstract(methodFlags) || Modifier.isNative(methodFlags)) {
        if (codeAttribute != null) {
            throw ConstantPool.classFormatError("Code attribute supplied for native or abstract method");
        }
    } else {
        if (codeAttribute == null) {
            throw ConstantPool.classFormatError("Missing Code attribute");
        }
    }
    if (classDefinitionInfo.isHidden()) {
        methodFlags |= ACC_HIDDEN;
    }
    return ParserMethod.create(methodFlags, name, signature, methodAttributes);
}

Example 10 with DebugCloseable

use of com.oracle.truffle.espresso.perf.DebugCloseable in project graal by oracle.

the class ClassfileParser method parseMethods.

private ParserMethod[] parseMethods(boolean isInterface) {
    int methodCount = stream.readU2();
    if (methodCount == 0) {
        return ParserMethod.EMPTY_ARRAY;
    }
    ParserMethod[] methods = new ParserMethod[methodCount];
    /*
         * Classes in general have lots of methods: use a hash set rather than array lookup for dup
         * check.
         */
    final HashSet<MethodKey> dup = new HashSet<>(methodCount);
    for (int i = 0; i < methodCount; ++i) {
        ParserMethod method;
        try (DebugCloseable closeable = PARSE_SINGLE_METHOD.scope(context.getTimers())) {
            method = parseMethod(isInterface);
        }
        methods[i] = method;
        try (DebugCloseable closeable = NO_DUP_CHECK.scope(context.getTimers())) {
            if (!dup.add(new MethodKey(method))) {
                throw ConstantPool.classFormatError("Duplicate method name and signature: " + method.getName() + " " + method.getSignature());
            }
        }
    }
    return methods;
}