Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeDisassembler.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | bc32f286fae0 |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:a61af66fc99e |
---|---|
1 /* | |
2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
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); | |
75 addBytecodeClass(Bytecodes._jsr, BytecodeJsr.class); | |
76 addBytecodeClass(Bytecodes._jsr_w, BytecodeJsrW.class); | |
77 addBytecodeClass(Bytecodes._iload, BytecodeLoad.class); | |
78 addBytecodeClass(Bytecodes._lload, BytecodeLoad.class); | |
79 addBytecodeClass(Bytecodes._fload, BytecodeLoad.class); | |
80 addBytecodeClass(Bytecodes._dload, BytecodeLoad.class); | |
81 addBytecodeClass(Bytecodes._aload, BytecodeLoad.class); | |
82 addBytecodeClass(Bytecodes._ldc, BytecodeLoadConstant.class); | |
83 addBytecodeClass(Bytecodes._ldc_w, BytecodeLoadConstant.class); | |
84 addBytecodeClass(Bytecodes._ldc2_w, BytecodeLoadConstant.class); | |
85 addBytecodeClass(Bytecodes._lookupswitch, BytecodeLookupswitch.class); | |
86 addBytecodeClass(Bytecodes._multianewarray, BytecodeMultiANewArray.class); | |
87 addBytecodeClass(Bytecodes._new, BytecodeNew.class); | |
88 addBytecodeClass(Bytecodes._newarray, BytecodeNewArray.class); | |
89 addBytecodeClass(Bytecodes._putfield, BytecodePutField.class); | |
90 addBytecodeClass(Bytecodes._putstatic, BytecodePutStatic.class); | |
91 addBytecodeClass(Bytecodes._ret, BytecodeRet.class); | |
92 addBytecodeClass(Bytecodes._sipush, BytecodeSipush.class); | |
93 addBytecodeClass(Bytecodes._istore, BytecodeStore.class); | |
94 addBytecodeClass(Bytecodes._lstore, BytecodeStore.class); | |
95 addBytecodeClass(Bytecodes._fstore, BytecodeStore.class); | |
96 addBytecodeClass(Bytecodes._dstore, BytecodeStore.class); | |
97 addBytecodeClass(Bytecodes._astore, BytecodeStore.class); | |
98 addBytecodeClass(Bytecodes._tableswitch, BytecodeTableswitch.class); | |
99 | |
100 // only special fast_xxx cases. others are handled differently. | |
101 addBytecodeClass(Bytecodes._fast_iaccess_0, BytecodeFastAAccess0.class); | |
102 addBytecodeClass(Bytecodes._fast_aaccess_0, BytecodeFastIAccess0.class); | |
103 } | |
104 | |
105 public BytecodeDisassembler(Method method) { | |
106 this.method = method; | |
107 } | |
108 | |
109 public Method getMethod() { | |
110 return method; | |
111 } | |
112 | |
113 public void decode(BytecodeVisitor visitor) { | |
114 visitor.prologue(method); | |
115 | |
116 BytecodeStream stream = new BytecodeStream(method); | |
117 int javacode = Bytecodes._illegal; | |
118 while ( (javacode = stream.next()) != Bytecodes._illegal) { | |
119 // look for special Bytecode class | |
120 int bci = stream.bci(); | |
121 int hotspotcode = method.getBytecodeOrBPAt(bci); | |
122 Class clazz = getBytecodeClass(javacode); | |
123 if (clazz == null) { | |
124 // check for fast_(i|a)_access_0 | |
125 clazz = getBytecodeClass(hotspotcode); | |
126 if (clazz == null) { | |
127 // use generic bytecode class | |
128 clazz = Bytecode.class; | |
129 } | |
130 } | |
131 | |
132 // All bytecode classes must have a constructor with signature | |
133 // (Lsun/jvm/hotspot/oops/Method;I)V | |
134 | |
135 Constructor cstr = null; | |
136 try { | |
137 cstr = clazz.getDeclaredConstructor(new Class[] { Method.class, Integer.TYPE }); | |
138 } catch(NoSuchMethodException nomethod) { | |
139 if (Assert.ASSERTS_ENABLED) { | |
140 Assert.that(false, "Bytecode class without proper constructor!"); | |
141 } | |
142 } | |
143 | |
144 Object bytecodeObj = null; | |
145 try { | |
146 bytecodeObj = cstr.newInstance(new Object[] { method, new Integer(bci) }); | |
147 } catch (Exception exp) { | |
148 if (Assert.ASSERTS_ENABLED) { | |
149 Assert.that(false, "Bytecode instance of class " | |
150 + clazz.getName() + " can not be created!"); | |
151 } | |
152 } | |
153 | |
154 if (stream.isWide()) { | |
155 visitor.visit(new Bytecode(method, bci - 1)); | |
156 } | |
157 | |
158 try { | |
159 visitor.visit((Bytecode) bytecodeObj); | |
160 } catch(ClassCastException castfail) { | |
161 if (Assert.ASSERTS_ENABLED) { | |
162 Assert.that(false, clazz.getName() + " is not derived from Bytecode!"); | |
163 } | |
164 } | |
165 } | |
166 | |
167 visitor.epilogue(); | |
168 } | |
169 } |