Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.java @ 0:a61af66fc99e jdk7-b24
Initial load
| author | duke |
|---|---|
| date | Sat, 01 Dec 2007 00:00:00 +0000 |
| parents | |
| children | c18cbe5936b8 |
comparison
equal
deleted
inserted
replaced
| -1:000000000000 | 0:a61af66fc99e |
|---|---|
| 1 /* | |
| 2 * Copyright 2002-2003 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 sun.jvm.hotspot.oops.*; | |
| 28 import sun.jvm.hotspot.runtime.*; | |
| 29 | |
| 30 // any bytecode with constant pool index | |
| 31 | |
| 32 public abstract class BytecodeWithCPIndex extends Bytecode { | |
| 33 BytecodeWithCPIndex(Method method, int bci) { | |
| 34 super(method, bci); | |
| 35 } | |
| 36 | |
| 37 // the constant pool index for this bytecode | |
| 38 public int index() { return 0xFFFF & javaShortAt(1); } | |
| 39 | |
| 40 protected int indexForFieldOrMethod() { | |
| 41 ConstantPoolCache cpCache = method().getConstants().getCache(); | |
| 42 // get ConstantPool index from ConstantPoolCacheIndex at given bci | |
| 43 int cpCacheIndex = index(); | |
| 44 if (cpCache == null) { | |
| 45 return cpCacheIndex; | |
| 46 } else { | |
| 47 // change byte-ordering and go via cache | |
| 48 return cpCache.getEntryAt((int) (0xFFFF & VM.getVM().getBytes().swapShort((short) cpCacheIndex))).getConstantPoolIndex(); | |
| 49 } | |
| 50 } | |
| 51 } |