annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotVMConfig.java @ 1429:abc670a709dc

* -XX:TraceC1X=0...5 controls the native c1x tracing * -Dc1x.debug=true turns on the logging proxies and lots of log output on the java side * provide more information about types to the compiler (type hierarchy, etc) * provide exception handler tables to the compiler * add exception handlers to the nmethod * correct implementation of ExceptionObject * exception handling/unwinding entry points * modified versions of handle/unwind exception stubs using standard calling conventions * exception throwing * implicit null pointer exception, implicit div by 0 exception * arraystore/classcast/arrayindex exceptions * checkcast implementation * newarray, anewarray, multinewarray implementation * correct new instance initialization * access to java class mirrors (for ldc) * unresolved methods * class resolving - class patching (asssembly prototype copying)
author Lukas Stadler <lukas.stadler@oracle.com>
date Tue, 31 Aug 2010 22:13:30 -0700
parents 695451afc619
children efba53f86c4f
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1 /*
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved.
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3 *
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is
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5 * described in this document. In particular, and without limitation, these intellectual property rights may include one
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6 * or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent
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7 * applications in the U.S. and in other countries.
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8 *
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc. standard
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10 * license agreement and applicable provisions of the FAR and its supplements.
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11 *
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12 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or registered
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13 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and
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14 * are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries.
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15 *
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16 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd.
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17 */
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18 package com.sun.hotspot.c1x;
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19
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20 import com.sun.cri.ci.*;
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21
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22 /**
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23 * Used to communicate configuration details, runtime offsets, etc. to c1x upon compileMethod.
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24 *
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25 * @author Lukas Stadler
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26 */
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27 public class HotSpotVMConfig implements CompilerObject {
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28
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29 // os information, register layout, code generation, ...
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30 public boolean windowsOs;
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31 public int codeEntryAlignment;
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32
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33 // offsets, ...
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34 public int vmPageSize;
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35 public int stackShadowPages;
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36 public int hubOffset;
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37 public int arrayLengthOffset;
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38 public int[] arrayOffsets;
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39 public int arrayClassElementOffset;
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40 public int threadTlabTopOffset;
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41 public int threadTlabEndOffset;
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42 public int instanceHeaderPrototypeOffset;
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43 public int threadExceptionOopOffset;
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44 public int threadExceptionPcOffset;
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45 public int threadMultiNewArrayStorage;
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46
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47 // runtime stubs
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48 public long debugStub;
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49 public long instanceofStub;
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50 public long newInstanceStub;
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51 public long newTypeArrayStub;
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52 public long newObjectArrayStub;
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53 public long newMultiArrayStub;
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54 public long loadKlassStub;
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55 public long resolveStaticCallStub;
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56 public long unwindExceptionStub;
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57 public long handleExceptionStub;
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58 public long throwClassCastException;
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59 public long throwArrayStoreException;
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60 public long throwArrayIndexException;
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61
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62 public void check() {
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63 assert vmPageSize >= 16;
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64 assert codeEntryAlignment > 0;
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65 assert stackShadowPages > 0;
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66 }
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67
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68 public int getArrayOffset(CiKind kind) {
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69 return arrayOffsets[getKindNumber(kind)];
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70 }
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71
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72 private int getKindNumber(CiKind kind) {
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73 if (kind == CiKind.Boolean)
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74 return 0;
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75 else if (kind == CiKind.Byte)
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76 return 1;
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77 else if (kind == CiKind.Short)
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78 return 2;
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79 else if (kind == CiKind.Char)
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80 return 3;
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81 else if (kind == CiKind.Int)
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82 return 4;
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83 else if (kind == CiKind.Float)
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84 return 5;
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85 else if (kind == CiKind.Long)
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86 return 6;
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87 else if (kind == CiKind.Double)
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88 return 7;
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89 else if (kind == CiKind.Object)
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90 return 8;
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91 else
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92 throw new RuntimeException(kind + " is not a Java kind");
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93 }
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94
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95 }