private static synchronized void initialize(TypeDataBase db) {
    Type type = db.lookupType("JNIHandleBlock");

    handlesField = type.getField("_handles");
    topField = type.getCIntegerField("_top");
    nextField = type.getAddressField("_next");

    blockSizeInOops = db.lookupIntConstant("JNIHandleBlock::block_size_in_oops").intValue();
  }
예제 #2
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  private static void initialize(TypeDataBase db) {
    if (Assert.ASSERTS_ENABLED) {
      Assert.that(!VM.getVM().isCore(), "Debug info not used in core build");
    }

    OFFSET_MASK = db.lookupIntConstant("Location::OFFSET_MASK").intValue();
    OFFSET_SHIFT = db.lookupIntConstant("Location::OFFSET_SHIFT").intValue();
    TYPE_MASK = db.lookupIntConstant("Location::TYPE_MASK").intValue();
    TYPE_SHIFT = db.lookupIntConstant("Location::TYPE_SHIFT").intValue();
    WHERE_MASK = db.lookupIntConstant("Location::WHERE_MASK").intValue();
    WHERE_SHIFT = db.lookupIntConstant("Location::WHERE_SHIFT").intValue();

    // Location::Type constants
    TYPE_NORMAL = db.lookupIntConstant("Location::normal").intValue();
    TYPE_OOP = db.lookupIntConstant("Location::oop").intValue();
    TYPE_NARROWOOP = db.lookupIntConstant("Location::narrowoop").intValue();
    TYPE_INT_IN_LONG = db.lookupIntConstant("Location::int_in_long").intValue();
    TYPE_LNG = db.lookupIntConstant("Location::lng").intValue();
    TYPE_FLOAT_IN_DBL = db.lookupIntConstant("Location::float_in_dbl").intValue();
    TYPE_DBL = db.lookupIntConstant("Location::dbl").intValue();
    TYPE_ADDR = db.lookupIntConstant("Location::addr").intValue();
    TYPE_INVALID = db.lookupIntConstant("Location::invalid").intValue();

    // Location::Where constants
    WHERE_ON_STACK = db.lookupIntConstant("Location::on_stack").intValue();
    WHERE_IN_REGISTER = db.lookupIntConstant("Location::in_register").intValue();
  }
예제 #3
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  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
    Type type = db.lookupType("instanceKlass");
    arrayKlasses = new OopField(type.getOopField("_array_klasses"), Oop.getHeaderSize());
    methods = new OopField(type.getOopField("_methods"), Oop.getHeaderSize());
    methodOrdering = new OopField(type.getOopField("_method_ordering"), Oop.getHeaderSize());
    localInterfaces = new OopField(type.getOopField("_local_interfaces"), Oop.getHeaderSize());
    transitiveInterfaces =
        new OopField(type.getOopField("_transitive_interfaces"), Oop.getHeaderSize());
    nofImplementors =
        new CIntField(type.getCIntegerField("_nof_implementors"), Oop.getHeaderSize());
    IMPLEMENTORS_LIMIT = db.lookupIntConstant("instanceKlass::implementors_limit").intValue();
    implementors = new OopField[IMPLEMENTORS_LIMIT];
    for (int i = 0; i < IMPLEMENTORS_LIMIT; i++) {
      long arrayOffset = Oop.getHeaderSize() + (i * db.getAddressSize());
      implementors[i] = new OopField(type.getOopField("_implementors[0]"), arrayOffset);
    }
    fields = new OopField(type.getOopField("_fields"), Oop.getHeaderSize());
    constants = new OopField(type.getOopField("_constants"), Oop.getHeaderSize());
    classLoader = new OopField(type.getOopField("_class_loader"), Oop.getHeaderSize());
    protectionDomain = new OopField(type.getOopField("_protection_domain"), Oop.getHeaderSize());
    signers = new OopField(type.getOopField("_signers"), Oop.getHeaderSize());
    sourceFileName = new OopField(type.getOopField("_source_file_name"), Oop.getHeaderSize());
    sourceDebugExtension =
        new OopField(type.getOopField("_source_debug_extension"), Oop.getHeaderSize());
    innerClasses = new OopField(type.getOopField("_inner_classes"), Oop.getHeaderSize());
    nonstaticFieldSize =
        new CIntField(type.getCIntegerField("_nonstatic_field_size"), Oop.getHeaderSize());
    staticFieldSize =
        new CIntField(type.getCIntegerField("_static_field_size"), Oop.getHeaderSize());
    staticOopFieldSize =
        new CIntField(type.getCIntegerField("_static_oop_field_size"), Oop.getHeaderSize());
    nonstaticOopMapSize =
        new CIntField(type.getCIntegerField("_nonstatic_oop_map_size"), Oop.getHeaderSize());
    isMarkedDependent =
        new CIntField(type.getCIntegerField("_is_marked_dependent"), Oop.getHeaderSize());
    initState = new CIntField(type.getCIntegerField("_init_state"), Oop.getHeaderSize());
    vtableLen = new CIntField(type.getCIntegerField("_vtable_len"), Oop.getHeaderSize());
    itableLen = new CIntField(type.getCIntegerField("_itable_len"), Oop.getHeaderSize());
    breakpoints = type.getAddressField("_breakpoints");
    genericSignature = new OopField(type.getOopField("_generic_signature"), Oop.getHeaderSize());
    majorVersion = new CIntField(type.getCIntegerField("_major_version"), Oop.getHeaderSize());
    minorVersion = new CIntField(type.getCIntegerField("_minor_version"), Oop.getHeaderSize());
    headerSize = alignObjectOffset(Oop.getHeaderSize() + type.getSize());

    // read field offset constants
    ACCESS_FLAGS_OFFSET = db.lookupIntConstant("instanceKlass::access_flags_offset").intValue();
    NAME_INDEX_OFFSET = db.lookupIntConstant("instanceKlass::name_index_offset").intValue();
    SIGNATURE_INDEX_OFFSET =
        db.lookupIntConstant("instanceKlass::signature_index_offset").intValue();
    INITVAL_INDEX_OFFSET = db.lookupIntConstant("instanceKlass::initval_index_offset").intValue();
    LOW_OFFSET = db.lookupIntConstant("instanceKlass::low_offset").intValue();
    HIGH_OFFSET = db.lookupIntConstant("instanceKlass::high_offset").intValue();
    GENERIC_SIGNATURE_INDEX_OFFSET =
        db.lookupIntConstant("instanceKlass::generic_signature_offset").intValue();
    NEXT_OFFSET = db.lookupIntConstant("instanceKlass::next_offset").intValue();
    // read ClassState constants
    CLASS_STATE_UNPARSABLE_BY_GC =
        db.lookupIntConstant("instanceKlass::unparsable_by_gc").intValue();
    CLASS_STATE_ALLOCATED = db.lookupIntConstant("instanceKlass::allocated").intValue();
    CLASS_STATE_LOADED = db.lookupIntConstant("instanceKlass::loaded").intValue();
    CLASS_STATE_LINKED = db.lookupIntConstant("instanceKlass::linked").intValue();
    CLASS_STATE_BEING_INITIALIZED =
        db.lookupIntConstant("instanceKlass::being_initialized").intValue();
    CLASS_STATE_FULLY_INITIALIZED =
        db.lookupIntConstant("instanceKlass::fully_initialized").intValue();
    CLASS_STATE_INITIALIZATION_ERROR =
        db.lookupIntConstant("instanceKlass::initialization_error").intValue();
  }