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annotate graal/com.oracle.jvmci.hotspotvmconfig/src/com/oracle/jvmci/hotspotvmconfig/HotSpotVMField.java @ 21564:2270a708ef23

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Merge.
author Doug Simon <doug.simon@oracle.com>
date Fri, 29 May 2015 00:19:05 +0200
parents b1530a6cce8c
children
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1 /*
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2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
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12 * version 2 for more details (a copy is included in the LICENSE file that
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.jvmci.hotspotvmconfig;
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24
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25 import java.lang.annotation.*;
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26
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27 /**
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28 * Refers to a C++ field in the VM.
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29 */
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30 @Target(ElementType.FIELD)
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31 @Retention(RetentionPolicy.RUNTIME)
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32 public @interface HotSpotVMField {
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33
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34 /**
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35 * Types of information this annotation can return.
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36 */
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37 enum Type {
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38 /**
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39 * Returns the offset of this field within the type. Only valid for instance fields.
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40 */
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41 OFFSET,
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42
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43 /**
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44 * Returns the absolute address of this field. Only valid for static fields.
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45 */
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46 ADDRESS,
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47
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48 /**
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49 * Returns the value of this field. Only valid for static fields.
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50 */
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51 VALUE;
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52 }
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53
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54 /**
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55 * Specifies what type of information to return.
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56 *
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57 * @see Type
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58 */
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59 Type get();
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60
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61 /**
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62 * Returns the type name containing this field.
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63 *
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64 * @return name of containing type
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65 */
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66 String type();
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67
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68 /**
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69 * Returns the name of this field.
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70 *
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71 * @return name of field
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72 */
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73 String name();
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74
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75 /**
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76 * List of architectures where this constant is required. Names are derived from
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77 * {@link HotSpotVMConfig#getHostArchitectureName()}. An empty list implies that the constant is
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78 * required on all architectures.
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79 */
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80 @SuppressWarnings("javadoc")
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81 String[] archs() default {};
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82 }