Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/oops/ExceptionTableElement.java @ 24234:ea6f94ab283b default tip
Added tag jvmci-0.36 for changeset 8128b98d4736
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Mon, 18 Sep 2017 18:49:45 +0200 |
parents | da91efe96a93 |
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1 /* |
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2 * Copyright (c) 2012, 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 |
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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 |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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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 */ |
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24 |
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25 package sun.jvm.hotspot.oops; |
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26 |
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27 import java.io.*; |
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28 import java.util.*; |
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29 import sun.jvm.hotspot.debugger.*; |
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30 import sun.jvm.hotspot.interpreter.*; |
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31 import sun.jvm.hotspot.runtime.*; |
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32 import sun.jvm.hotspot.types.*; |
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33 import sun.jvm.hotspot.utilities.*; |
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34 |
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35 public class ExceptionTableElement { |
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36 static { |
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37 VM.registerVMInitializedObserver(new Observer() { |
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38 public void update(Observable o, Object data) { |
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39 initialize(VM.getVM().getTypeDataBase()); |
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40 } |
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41 }); |
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42 } |
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43 |
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44 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { |
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45 Type type = db.lookupType("ExceptionTableElement"); |
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46 offsetOfStartPC = type.getCIntegerField("start_pc").getOffset(); |
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47 offsetOfEndPC = type.getCIntegerField("end_pc").getOffset(); |
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48 offsetOfHandlerPC = type.getCIntegerField("handler_pc").getOffset(); |
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49 offsetOfCatchTypeIndex = type.getCIntegerField("catch_type_index").getOffset(); |
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50 } |
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51 |
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52 private static long offsetOfStartPC; |
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53 private static long offsetOfEndPC; |
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54 private static long offsetOfHandlerPC; |
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55 private static long offsetOfCatchTypeIndex; |
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56 |
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57 private Address handle; |
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58 private long offset; |
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59 |
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60 public ExceptionTableElement(Address handle, long offset) { |
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61 this.handle = handle; |
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62 this.offset = offset; |
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63 } |
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64 |
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65 public int getStartPC() { |
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66 return (int) handle.getCIntegerAt(offset + offsetOfStartPC, 2, true); |
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67 } |
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68 |
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69 public int getEndPC() { |
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70 return (int) handle.getCIntegerAt(offset + offsetOfEndPC, 2, true); |
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71 } |
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72 |
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73 public int getHandlerPC() { |
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74 return (int) handle.getCIntegerAt(offset + offsetOfHandlerPC, 2, true); |
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75 } |
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76 |
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77 public int getCatchTypeIndex() { |
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78 return (int) handle.getCIntegerAt(offset + offsetOfCatchTypeIndex, 2, true); |
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79 } |
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80 } |