Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/InterpretedVFrame.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
author | jrose |
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date | Sat, 30 Oct 2010 13:08:23 -0700 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2009, 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.runtime; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.interpreter.*; | |
30 import sun.jvm.hotspot.oops.*; | |
31 import sun.jvm.hotspot.utilities.*; | |
32 | |
33 public class InterpretedVFrame extends JavaVFrame { | |
34 /** JVM state */ | |
35 public Method getMethod() { | |
36 return getFrame().getInterpreterFrameMethod(); | |
37 } | |
38 | |
39 public StackValueCollection getLocals() { | |
40 Method m = getMethod(); | |
41 | |
42 int length = (int) m.getMaxLocals(); | |
43 | |
44 if (m.isNative()) { | |
45 // If the method is native, getMaxLocals is not telling the truth. | |
46 // maxlocals then equals the size of parameters | |
47 length = (int) m.getSizeOfParameters(); | |
48 } | |
49 | |
50 StackValueCollection result = new StackValueCollection(length); | |
51 | |
52 // Get oopmap describing oops and int for current bci | |
53 OopMapCacheEntry oopMask = getMethod().getMaskFor(getBCI()); | |
54 | |
55 // handle locals | |
56 for(int i = 0; i < length; i++) { | |
57 // Find stack location | |
58 Address addr = addressOfLocalAt(i); | |
59 | |
60 // Depending on oop/int put it in the right package | |
61 StackValue sv; | |
62 if (oopMask.isOop(i)) { | |
63 // oop value | |
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6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
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64 sv = new StackValue(addr.getOopHandleAt(0), 0); |
0 | 65 } else { |
66 // integer | |
67 // Fetch a signed integer the size of a stack slot | |
68 sv = new StackValue(addr.getCIntegerAt(0, VM.getVM().getAddressSize(), false)); | |
69 } | |
70 result.add(sv); | |
71 } | |
72 | |
73 return result; | |
74 } | |
75 | |
76 public StackValueCollection getExpressions() { | |
77 int length = getFrame().getInterpreterFrameExpressionStackSize(); | |
78 | |
79 if (getMethod().isNative()) { | |
80 // If the method is native, there is no expression stack | |
81 length = 0; | |
82 } | |
83 | |
84 int nofLocals = (int) getMethod().getMaxLocals(); | |
85 StackValueCollection result = new StackValueCollection(length); | |
86 | |
87 // Get oopmap describing oops and int for current bci | |
88 OopMapCacheEntry oopMask = getMethod().getMaskFor(getBCI()); | |
89 | |
90 for(int i = 0; i < length; i++) { | |
91 // Find stack location | |
92 Address addr = addressOfExpressionStackAt(i); | |
93 | |
94 // Depending on oop/int put it in the right package | |
95 StackValue sv; | |
96 if (oopMask.isOop(i + nofLocals)) { | |
97 // oop value | |
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6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
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98 sv = new StackValue(addr.getOopHandleAt(0), 0); |
0 | 99 } else { |
100 // integer | |
101 // Fetch a signed integer the size of a stack slot | |
102 sv = new StackValue(addr.getCIntegerAt(0, VM.getVM().getAddressSize(), false)); | |
103 } | |
104 result.add(sv); | |
105 } | |
106 | |
107 return result; | |
108 } | |
109 | |
110 /** Returns List<MonitorInfo> */ | |
111 public List getMonitors() { | |
112 List result = new ArrayList(5); | |
113 for (BasicObjectLock current = getFrame().interpreterFrameMonitorEnd(); | |
114 current.address().lessThan(getFrame().interpreterFrameMonitorBegin().address()); | |
115 current = getFrame().nextMonitorInInterpreterFrame(current)) { | |
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116 result.add(new MonitorInfo(current.obj(), current.lock(), false, false)); |
0 | 117 } |
118 return result; | |
119 } | |
120 | |
121 /** Test operation */ | |
122 public boolean isInterpretedFrame() { return true; } | |
123 | |
124 /** Package-internal constructor */ | |
125 InterpretedVFrame(Frame fr, RegisterMap regMap, JavaThread thread) { | |
126 super(fr, regMap, thread); | |
127 } | |
128 | |
129 /** Accessor for Byte Code Index (NOTE: access to BCP is not allowed | |
130 in this system; see Frame.java) */ | |
131 public int getBCI() { | |
132 return getFrame().getInterpreterFrameBCI(); | |
133 } | |
134 | |
135 /** Setter for Byte Code Index */ | |
136 // FIXME: not yet implementable | |
137 // public void setBCI(int bci) { | |
138 // getFrame().setInterpreterFrameBCI(bci); | |
139 // } | |
140 | |
141 public void verify() { | |
142 } | |
143 | |
144 //-------------------------------------------------------------------------------- | |
145 // Internals only below this point | |
146 // | |
147 | |
148 private Address addressOfLocalAt(int index) { | |
149 if (Assert.ASSERTS_ENABLED) { | |
150 Assert.that(getFrame().isInterpretedFrame(), "frame should be an interpreted frame"); | |
151 } | |
152 return fr.addressOfInterpreterFrameLocal(index); | |
153 } | |
154 | |
155 private Address addressOfExpressionStackAt(int index) { | |
156 return fr.addressOfInterpreterFrameExpressionStackSlot(index); | |
157 } | |
158 } |