Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeDisassembler.java @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | 136b78722a08 |
| children | da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.interpreter; | |
| 26 | |
| 27 import java.util.*; | |
| 28 import java.lang.reflect.Constructor; | |
| 29 import sun.jvm.hotspot.oops.*; | |
| 30 import sun.jvm.hotspot.utilities.*; | |
| 31 | |
| 32 public class BytecodeDisassembler { | |
| 33 private Method method; | |
| 34 | |
| 35 private static Map bytecode2Class = new HashMap(); // Map<int, Class> | |
| 36 | |
| 37 private static void addBytecodeClass(int bytecode, Class clazz) { | |
| 38 bytecode2Class.put(new Integer(bytecode), clazz); | |
| 39 } | |
| 40 | |
| 41 private static Class getBytecodeClass(int bytecode) { | |
| 42 return (Class) bytecode2Class.get(new Integer(bytecode)); | |
| 43 } | |
| 44 | |
| 45 static { | |
| 46 addBytecodeClass(Bytecodes._anewarray, BytecodeANewArray.class); | |
| 47 addBytecodeClass(Bytecodes._bipush, BytecodeBipush.class); | |
| 48 addBytecodeClass(Bytecodes._checkcast, BytecodeCheckCast.class); | |
| 49 addBytecodeClass(Bytecodes._getfield, BytecodeGetField.class); | |
| 50 addBytecodeClass(Bytecodes._getstatic, BytecodeGetStatic.class); | |
| 51 addBytecodeClass(Bytecodes._goto, BytecodeGoto.class); | |
| 52 addBytecodeClass(Bytecodes._goto_w, BytecodeGotoW.class); | |
| 53 addBytecodeClass(Bytecodes._ifeq, BytecodeIf.class); | |
| 54 addBytecodeClass(Bytecodes._ifne, BytecodeIf.class); | |
| 55 addBytecodeClass(Bytecodes._iflt, BytecodeIf.class); | |
| 56 addBytecodeClass(Bytecodes._ifge, BytecodeIf.class); | |
| 57 addBytecodeClass(Bytecodes._ifgt, BytecodeIf.class); | |
| 58 addBytecodeClass(Bytecodes._ifle, BytecodeIf.class); | |
| 59 addBytecodeClass(Bytecodes._if_icmpeq, BytecodeIf.class); | |
| 60 addBytecodeClass(Bytecodes._if_icmpne, BytecodeIf.class); | |
| 61 addBytecodeClass(Bytecodes._if_icmplt, BytecodeIf.class); | |
| 62 addBytecodeClass(Bytecodes._if_icmpge, BytecodeIf.class); | |
| 63 addBytecodeClass(Bytecodes._if_icmpgt, BytecodeIf.class); | |
| 64 addBytecodeClass(Bytecodes._if_icmple, BytecodeIf.class); | |
| 65 addBytecodeClass(Bytecodes._if_acmpeq, BytecodeIf.class); | |
| 66 addBytecodeClass(Bytecodes._if_acmpne, BytecodeIf.class); | |
| 67 addBytecodeClass(Bytecodes._ifnull, BytecodeIf.class); | |
| 68 addBytecodeClass(Bytecodes._ifnonnull, BytecodeIf.class); | |
| 69 addBytecodeClass(Bytecodes._iinc, BytecodeIinc.class); | |
| 70 addBytecodeClass(Bytecodes._instanceof, BytecodeInstanceOf.class); | |
| 71 addBytecodeClass(Bytecodes._invokevirtual, BytecodeInvoke.class); | |
| 72 addBytecodeClass(Bytecodes._invokestatic, BytecodeInvoke.class); | |
| 73 addBytecodeClass(Bytecodes._invokespecial, BytecodeInvoke.class); | |
| 74 addBytecodeClass(Bytecodes._invokeinterface, BytecodeInvoke.class); | |
| 1602 | 75 addBytecodeClass(Bytecodes._invokedynamic, BytecodeInvoke.class); |
| 0 | 76 addBytecodeClass(Bytecodes._jsr, BytecodeJsr.class); |
| 77 addBytecodeClass(Bytecodes._jsr_w, BytecodeJsrW.class); | |
| 78 addBytecodeClass(Bytecodes._iload, BytecodeLoad.class); | |
| 79 addBytecodeClass(Bytecodes._lload, BytecodeLoad.class); | |
| 80 addBytecodeClass(Bytecodes._fload, BytecodeLoad.class); | |
| 81 addBytecodeClass(Bytecodes._dload, BytecodeLoad.class); | |
| 82 addBytecodeClass(Bytecodes._aload, BytecodeLoad.class); | |
| 83 addBytecodeClass(Bytecodes._ldc, BytecodeLoadConstant.class); | |
| 84 addBytecodeClass(Bytecodes._ldc_w, BytecodeLoadConstant.class); | |
| 85 addBytecodeClass(Bytecodes._ldc2_w, BytecodeLoadConstant.class); | |
| 86 addBytecodeClass(Bytecodes._lookupswitch, BytecodeLookupswitch.class); | |
| 87 addBytecodeClass(Bytecodes._multianewarray, BytecodeMultiANewArray.class); | |
| 88 addBytecodeClass(Bytecodes._new, BytecodeNew.class); | |
| 89 addBytecodeClass(Bytecodes._newarray, BytecodeNewArray.class); | |
| 90 addBytecodeClass(Bytecodes._putfield, BytecodePutField.class); | |
| 91 addBytecodeClass(Bytecodes._putstatic, BytecodePutStatic.class); | |
| 92 addBytecodeClass(Bytecodes._ret, BytecodeRet.class); | |
| 93 addBytecodeClass(Bytecodes._sipush, BytecodeSipush.class); | |
| 94 addBytecodeClass(Bytecodes._istore, BytecodeStore.class); | |
| 95 addBytecodeClass(Bytecodes._lstore, BytecodeStore.class); | |
| 96 addBytecodeClass(Bytecodes._fstore, BytecodeStore.class); | |
| 97 addBytecodeClass(Bytecodes._dstore, BytecodeStore.class); | |
| 98 addBytecodeClass(Bytecodes._astore, BytecodeStore.class); | |
| 99 addBytecodeClass(Bytecodes._tableswitch, BytecodeTableswitch.class); | |
| 100 } | |
| 101 | |
| 102 public BytecodeDisassembler(Method method) { | |
| 103 this.method = method; | |
| 104 } | |
| 105 | |
| 106 public Method getMethod() { | |
| 107 return method; | |
| 108 } | |
| 109 | |
| 110 public void decode(BytecodeVisitor visitor) { | |
| 111 visitor.prologue(method); | |
| 112 | |
| 113 BytecodeStream stream = new BytecodeStream(method); | |
| 114 int javacode = Bytecodes._illegal; | |
| 115 while ( (javacode = stream.next()) != Bytecodes._illegal) { | |
| 116 // look for special Bytecode class | |
| 117 int bci = stream.bci(); | |
| 118 int hotspotcode = method.getBytecodeOrBPAt(bci); | |
| 119 Class clazz = getBytecodeClass(javacode); | |
| 120 if (clazz == null) { | |
| 121 // check for fast_(i|a)_access_0 | |
| 122 clazz = getBytecodeClass(hotspotcode); | |
| 123 if (clazz == null) { | |
| 124 // use generic bytecode class | |
| 125 clazz = Bytecode.class; | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 // All bytecode classes must have a constructor with signature | |
| 130 // (Lsun/jvm/hotspot/oops/Method;I)V | |
| 131 | |
| 132 Constructor cstr = null; | |
| 133 try { | |
| 134 cstr = clazz.getDeclaredConstructor(new Class[] { Method.class, Integer.TYPE }); | |
| 135 } catch(NoSuchMethodException nomethod) { | |
| 136 if (Assert.ASSERTS_ENABLED) { | |
| 137 Assert.that(false, "Bytecode class without proper constructor!"); | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 Object bytecodeObj = null; | |
| 142 try { | |
| 143 bytecodeObj = cstr.newInstance(new Object[] { method, new Integer(bci) }); | |
| 144 } catch (Exception exp) { | |
| 145 if (Assert.ASSERTS_ENABLED) { | |
| 146 Assert.that(false, "Bytecode instance of class " | |
| 147 + clazz.getName() + " can not be created!"); | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 if (stream.isWide()) { | |
| 152 visitor.visit(new Bytecode(method, bci - 1)); | |
| 153 } | |
| 154 | |
| 155 try { | |
| 156 visitor.visit((Bytecode) bytecodeObj); | |
| 157 } catch(ClassCastException castfail) { | |
| 158 if (Assert.ASSERTS_ENABLED) { | |
| 159 Assert.that(false, clazz.getName() + " is not derived from Bytecode!"); | |
| 160 } | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 visitor.epilogue(); | |
| 165 } | |
| 166 } |