Mercurial > hg > graal-jvmci-8
comparison src/share/vm/ci/ciBaseObject.cpp @ 6725:da91efe96a93
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 |
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date | Sat, 01 Sep 2012 13:25:18 -0400 |
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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 } |