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annotate src/share/vm/prims/privilegedStack.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
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1 /*
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2 * Copyright (c) 1997, 2012, 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_PRIMS_PRIVILEGEDSTACK_HPP
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26 #define SHARE_VM_PRIMS_PRIVILEGEDSTACK_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "oops/oopsHierarchy.hpp"
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30 #include "runtime/vframe.hpp"
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31 #include "utilities/growableArray.hpp"
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32
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33 class PrivilegedElement VALUE_OBJ_CLASS_SPEC {
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34 private:
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35 Klass* _klass; // klass for method
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36 oop _privileged_context; // context for operation
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37 intptr_t* _frame_id; // location on stack
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38 PrivilegedElement* _next; // Link to next one on stack
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39 public:
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40 void initialize(vframeStream* vf, oop context, PrivilegedElement* next, TRAPS);
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41 void oops_do(OopClosure* f);
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42 void classes_do(KlassClosure* f);
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43 intptr_t* frame_id() const { return _frame_id; }
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44 oop privileged_context() const { return _privileged_context; }
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45 oop class_loader() const { return InstanceKlass::cast(_klass)->class_loader(); }
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46 oop protection_domain() const { return InstanceKlass::cast(_klass)->protection_domain(); }
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47 PrivilegedElement *next() const { return _next; }
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48
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49 // debugging (used for find)
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50 void print_on(outputStream* st) const PRODUCT_RETURN;
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51 bool contains(address addr) PRODUCT_RETURN0;
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52 };
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53
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54 #endif // SHARE_VM_PRIMS_PRIVILEGEDSTACK_HPP