Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/immutableSpace.cpp @ 9693:d04944441454
cleaned up and simplified runtime call mechanisms
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 14 May 2013 21:33:37 +0200 |
parents | db9981fd3124 |
children | de6a9e811145 |
rev | line source |
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0 | 1 /* |
6008 | 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "utilities/macros.hpp" |
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27 #if INCLUDE_ALL_GCS |
1972 | 28 #include "gc_implementation/shared/immutableSpace.hpp" |
29 #include "memory/universe.hpp" | |
30 #include "oops/oop.inline.hpp" | |
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31 #endif // INCLUDE_ALL_GCS |
0 | 32 |
33 void ImmutableSpace::initialize(MemRegion mr) { | |
34 HeapWord* bottom = mr.start(); | |
35 HeapWord* end = mr.end(); | |
36 | |
37 assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end), | |
38 "invalid space boundaries"); | |
39 | |
40 _bottom = bottom; | |
41 _end = end; | |
42 } | |
43 | |
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44 void ImmutableSpace::oop_iterate(ExtendedOopClosure* cl) { |
0 | 45 HeapWord* obj_addr = bottom(); |
46 HeapWord* t = end(); | |
47 // Could call objects iterate, but this is easier. | |
48 while (obj_addr < t) { | |
49 obj_addr += oop(obj_addr)->oop_iterate(cl); | |
50 } | |
51 } | |
52 | |
53 void ImmutableSpace::object_iterate(ObjectClosure* cl) { | |
54 HeapWord* p = bottom(); | |
55 while (p < end()) { | |
56 cl->do_object(oop(p)); | |
57 p += oop(p)->size(); | |
58 } | |
59 } | |
60 | |
61 #ifndef PRODUCT | |
62 | |
63 void ImmutableSpace::print_short() const { | |
64 tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K); | |
65 } | |
66 | |
67 void ImmutableSpace::print() const { | |
68 print_short(); | |
69 tty->print_cr(" [%#-6lx,%#-6lx)", bottom(), end()); | |
70 } | |
71 | |
72 #endif | |
73 | |
6008 | 74 void ImmutableSpace::verify() { |
0 | 75 HeapWord* p = bottom(); |
76 HeapWord* t = end(); | |
77 HeapWord* prev_p = NULL; | |
78 while (p < t) { | |
79 oop(p)->verify(); | |
80 prev_p = p; | |
81 p += oop(p)->size(); | |
82 } | |
83 guarantee(p == end(), "end of last object must match end of space"); | |
84 } |