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comparison src/share/vm/runtime/vmStructs.hpp @ 6725:da91efe96a93

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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 1d1603768966
children 7c15faa95ce7
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 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.
76 // ("offset" can not be reused because of apparent SparcWorks compiler bug 76 // ("offset" can not be reused because of apparent SparcWorks compiler bug
77 // in generation of initializer data) 77 // in generation of initializer data)
78 } VMStructEntry; 78 } VMStructEntry;
79 79
80 typedef struct { 80 typedef struct {
81 const char* typeName; // Type name (example: "methodOopDesc") 81 const char* typeName; // Type name (example: "Method")
82 const char* superclassName; // Superclass name, or null if none (example: "oopDesc") 82 const char* superclassName; // Superclass name, or null if none (example: "oopDesc")
83 int32_t isOopType; // Does this type represent an oop typedef? (i.e., "methodOop" or 83 int32_t isOopType; // Does this type represent an oop typedef? (i.e., "Method*" or
84 // "klassOop", but NOT "methodOopDesc") 84 // "Klass*", but NOT "Method")
85 int32_t isIntegerType; // Does this type represent an integer type (of arbitrary size)? 85 int32_t isIntegerType; // Does this type represent an integer type (of arbitrary size)?
86 int32_t isUnsigned; // If so, is it unsigned? 86 int32_t isUnsigned; // If so, is it unsigned?
87 uint64_t size; // Size, in bytes, of the type 87 uint64_t size; // Size, in bytes, of the type
88 } VMTypeEntry; 88 } VMTypeEntry;
89 89