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annotate src/share/vm/oops/instanceOop.hpp @ 3011:f00918f35c7f

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inlining and runtime interface related changes: added codeSize() and compilerStorage() to RiMethod HotSpotMethodResolved uses reflective methods instead of vmIds and survives compilations HotSpotResolvedType.isInitialized not represented as field (can change) inlining stores graphs into method objects and reuses them
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 16 Jun 2011 20:36:17 +0200
parents f95d63e2154a
children da91efe96a93
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_OOPS_INSTANCEOOP_HPP
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26 #define SHARE_VM_OOPS_INSTANCEOOP_HPP
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27
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28 #include "oops/oop.hpp"
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29
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30 // An instanceOop is an instance of a Java Class
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31 // Evaluating "new HashTable()" will create an instanceOop.
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32
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33 class instanceOopDesc : public oopDesc {
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34 public:
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35 // aligned header size.
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36 static int header_size() { return sizeof(instanceOopDesc)/HeapWordSize; }
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38 // If compressed, the offset of the fields of the instance may not be aligned.
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39 static int base_offset_in_bytes() {
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40 return UseCompressedOops ?
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41 klass_gap_offset_in_bytes() :
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42 sizeof(instanceOopDesc);
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43 }
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44
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45 static bool contains_field_offset(int offset, int nonstatic_field_size) {
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46 int base_in_bytes = base_offset_in_bytes();
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47 return (offset >= base_in_bytes &&
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48 (offset-base_in_bytes) < nonstatic_field_size * heapOopSize);
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49 }
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50 };
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51
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52 #endif // SHARE_VM_OOPS_INSTANCEOOP_HPP