Mercurial > hg > truffle

comparison agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeLoadConstant.java @ 6725:da91efe96a93

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 2090c623107e
children
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
44 else 44 else
45 return getIndexU2(code(), false); 45 return getIndexU2(code(), false);
46 } 46 }
47 47
48 public int poolIndex() { 48 public int poolIndex() {
49 int i = rawIndex(); 49 int index = rawIndex();
50 if (hasCacheIndex()) { 50 if (hasCacheIndex()) {
51 ConstantPoolCache cpCache = method().getConstants().getCache(); 51 return method().getConstants().objectToCPIndex(index);
52 return cpCache.getEntryAt(i).getConstantPoolIndex(); 52 } else {
53 } else { 53 return index;
54 return i;
55 } 54 }
56 } 55 }
57 56
58 public int cacheIndex() { 57 public int cacheIndex() {
59 if (hasCacheIndex()) { 58 if (hasCacheIndex()) {
70 } 69 }
71 70
72 private Oop getCachedConstant() { 71 private Oop getCachedConstant() {
73 int i = cacheIndex(); 72 int i = cacheIndex();
74 if (i >= 0) { 73 if (i >= 0) {
75 ConstantPoolCache cpCache = method().getConstants().getCache(); 74 throw new InternalError("invokedynamic not implemented yet");
76 return cpCache.getEntryAt(i).getF1();
77 } 75 }
78 return null; 76 return null;
79 } 77 }
80 78
81 public void verify() { 79 public void verify() {
94 if (jcode == Bytecodes._ldc2_w) { 92 if (jcode == Bytecodes._ldc2_w) {
95 // has to be double or long 93 // has to be double or long
96 return (ctag.isDouble() || ctag.isLong()) ? true: false; 94 return (ctag.isDouble() || ctag.isLong()) ? true: false;
97 } else { 95 } else {
98 // has to be int or float or String or Klass 96 // has to be int or float or String or Klass
99 return (ctag.isUnresolvedString() || ctag.isString() 97 return (ctag.isString()
100 || ctag.isUnresolvedKlass() || ctag.isKlass() 98 || ctag.isUnresolvedKlass() || ctag.isKlass()
101 || ctag.isMethodHandle() || ctag.isMethodType() 99 || ctag.isMethodHandle() || ctag.isMethodType()
102 || ctag.isInt() || ctag.isFloat())? true: false; 100 || ctag.isInt() || ctag.isFloat())? true: false;
103 } 101 }
104 } 102 }
122 // We just look at the object at the corresponding index and 120 // We just look at the object at the corresponding index and
123 // decide based on the oop type. 121 // decide based on the oop type.
124 ConstantPool cpool = method().getConstants(); 122 ConstantPool cpool = method().getConstants();
125 int cpIndex = poolIndex(); 123 int cpIndex = poolIndex();
126 ConstantPool.CPSlot oop = cpool.getSlotAt(cpIndex); 124 ConstantPool.CPSlot oop = cpool.getSlotAt(cpIndex);
127 if (oop.isOop()) { 125 if (oop.isResolved()) {
128 return (Klass) oop.getOop(); 126 return oop.getKlass();
129 } else if (oop.isMetaData()) { 127 } else if (oop.isUnresolved()) {
130 return oop.getSymbol(); 128 return oop.getSymbol();
131 } else { 129 } else {
132 throw new RuntimeException("should not reach here"); 130 throw new RuntimeException("should not reach here");
133 } 131 }
134 } 132 }
161 return "<long " + Long.toString(cpool.getLongAt(cpIndex)) + "L>"; 159 return "<long " + Long.toString(cpool.getLongAt(cpIndex)) + "L>";
162 } else if (ctag.isFloat()) { 160 } else if (ctag.isFloat()) {
163 return "<float " + Float.toString(cpool.getFloatAt(cpIndex)) + "F>"; 161 return "<float " + Float.toString(cpool.getFloatAt(cpIndex)) + "F>";
164 } else if (ctag.isDouble()) { 162 } else if (ctag.isDouble()) {
165 return "<double " + Double.toString(cpool.getDoubleAt(cpIndex)) + "D>"; 163 return "<double " + Double.toString(cpool.getDoubleAt(cpIndex)) + "D>";
166 } else if (ctag.isString() || ctag.isUnresolvedString()) { 164 } else if (ctag.isString()) {
167 // tag change from 'unresolved' to 'string' does not happen atomically. 165 // tag change from 'unresolved' to 'string' does not happen atomically.
168 // We just look at the object at the corresponding index and 166 // We just look at the object at the corresponding index and
169 // decide based on the oop type. 167 // decide based on the oop type.
170 ConstantPool.CPSlot obj = cpool.getSlotAt(cpIndex); 168 Symbol sym = cpool.getUnresolvedStringAt(cpIndex);
171 if (obj.isMetaData()) {
172 Symbol sym = obj.getSymbol();
173 return "<String \"" + sym.asString() + "\">"; 169 return "<String \"" + sym.asString() + "\">";
174 } else if (obj.isOop()) {
175 return "<String \"" + OopUtilities.stringOopToString(obj.getOop()) + "\">";
176 } else {
177 throw new RuntimeException("should not reach here");
178 }
179 } else if (ctag.isKlass() || ctag.isUnresolvedKlass()) { 170 } else if (ctag.isKlass() || ctag.isUnresolvedKlass()) {
180 // tag change from 'unresolved' to 'klass' does not happen atomically. 171 // tag change from 'unresolved' to 'klass' does not happen atomically.
181 // We just look at the object at the corresponding index and 172 // We just look at the object at the corresponding index and
182 // decide based on the oop type. 173 // decide based on the oop type.
183 ConstantPool.CPSlot obj = cpool.getSlotAt(cpIndex); 174 ConstantPool.CPSlot obj = cpool.getSlotAt(cpIndex);
184 if (obj.isOop()) { 175 if (obj.isResolved()) {
185 Klass k = (Klass) obj.getOop(); 176 Klass k = obj.getKlass();
186 return "<Class " + k.getName().asString() + "@" + k.getHandle() + ">"; 177 return "<Class " + k.getName().asString() + "@" + k.getAddress() + ">";
187 } else if (obj.isMetaData()) { 178 } else if (obj.isUnresolved()) {
188 Symbol sym = obj.getSymbol(); 179 Symbol sym = obj.getSymbol();
189 return "<Class " + sym.asString() + ">"; 180 return "<Class " + sym.asString() + ">";
190 } else { 181 } else {
191 throw new RuntimeException("should not reach here"); 182 throw new RuntimeException("should not reach here");
192 } 183 }