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comparison src/share/vm/ci/ciBaseObject.cpp @ 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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6724:36d1d483d5d6 6725:da91efe96a93
1 /*
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "ci/ciBaseObject.hpp"
27 #include "ci/ciUtilities.hpp"
28 #include "gc_interface/collectedHeap.inline.hpp"
29 #include "oops/oop.inline2.hpp"
30
31 // ------------------------------------------------------------------
32 // ciBaseObject::set_ident
33 //
34 // Set the unique identity number of a ciBaseObject.
35 void ciBaseObject::set_ident(uint id) {
36 assert((_ident >> FLAG_BITS) == 0, "must only initialize once");
37 assert( id < ((uint)1 << (BitsPerInt-FLAG_BITS)), "id too big");
38 _ident = _ident + (id << FLAG_BITS);
39 }
40
41 // ------------------------------------------------------------------
42 // ciBaseObject::ident
43 //
44 // Report the unique identity number of a ciBaseObject.
45 uint ciBaseObject::ident() {
46 uint id = _ident >> FLAG_BITS;
47 assert(id != 0, "must be initialized");
48 return id;
49 }