--- /dev/null 2015-10-08 07:25:35.000000000 -1000 +++ new/src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspotvmconfig/src/jdk/vm/ci/hotspotvmconfig/HotSpotVMField.java 2015-10-08 07:25:35.000000000 -1000 @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package jdk.vm.ci.hotspotvmconfig; + +import java.lang.annotation.*; + +/** + * Refers to a C++ field in the VM. + */ +@Target(ElementType.FIELD) +@Retention(RetentionPolicy.RUNTIME) +public @interface HotSpotVMField { + + /** + * Types of information this annotation can return. + */ + enum Type { + /** + * Returns the offset of this field within the type. Only valid for instance fields. + */ + OFFSET, + + /** + * Returns the absolute address of this field. Only valid for static fields. + */ + ADDRESS, + + /** + * Returns the value of this field. Only valid for static fields. + */ + VALUE; + } + + /** + * Specifies what type of information to return. + * + * @see Type + */ + Type get(); + + /** + * Returns the type name containing this field. + * + * @return name of containing type + */ + String type(); + + /** + * Returns the name of this field. + * + * @return name of field + */ + String name(); + + /** + * List of architectures where this constant is required. Names are derived from + * {@link HotSpotVMConfig#getHostArchitectureName()}. An empty list implies that the constant is + * required on all architectures. + */ + @SuppressWarnings("javadoc") + String[] archs() default {}; +}