Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeDisassembler.java @ 1602:136b78722a08
6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode.
Reviewed-by: twisti, never
author | jrose |
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date | Wed, 09 Jun 2010 18:50:45 -0700 |
parents | c18cbe5936b8 |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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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). | |
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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, | |
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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 |
c18cbe5936b8
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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 } |