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annotate src/share/vm/gc_implementation/shared/immutableSpace.cpp @ 3710:4e037604f6ee
use alignment for constants specified in DataPatch.alignment
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Mon, 05 Dec 2011 18:15:25 -0800 |
parents | f95d63e2154a |
children | b632e80fc9dc |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2001, 2010, 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" |
26 #ifndef SERIALGC | |
27 #include "gc_implementation/shared/immutableSpace.hpp" | |
28 #include "memory/universe.hpp" | |
29 #include "oops/oop.inline.hpp" | |
30 #endif | |
0 | 31 |
32 void ImmutableSpace::initialize(MemRegion mr) { | |
33 HeapWord* bottom = mr.start(); | |
34 HeapWord* end = mr.end(); | |
35 | |
36 assert(Universe::on_page_boundary(bottom) && Universe::on_page_boundary(end), | |
37 "invalid space boundaries"); | |
38 | |
39 _bottom = bottom; | |
40 _end = end; | |
41 } | |
42 | |
43 void ImmutableSpace::oop_iterate(OopClosure* cl) { | |
44 HeapWord* obj_addr = bottom(); | |
45 HeapWord* t = end(); | |
46 // Could call objects iterate, but this is easier. | |
47 while (obj_addr < t) { | |
48 obj_addr += oop(obj_addr)->oop_iterate(cl); | |
49 } | |
50 } | |
51 | |
52 void ImmutableSpace::object_iterate(ObjectClosure* cl) { | |
53 HeapWord* p = bottom(); | |
54 while (p < end()) { | |
55 cl->do_object(oop(p)); | |
56 p += oop(p)->size(); | |
57 } | |
58 } | |
59 | |
60 #ifndef PRODUCT | |
61 | |
62 void ImmutableSpace::print_short() const { | |
63 tty->print(" space " SIZE_FORMAT "K, 100%% used", capacity_in_bytes() / K); | |
64 } | |
65 | |
66 void ImmutableSpace::print() const { | |
67 print_short(); | |
68 tty->print_cr(" [%#-6lx,%#-6lx)", bottom(), end()); | |
69 } | |
70 | |
71 #endif | |
72 | |
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73 void ImmutableSpace::verify(bool allow_dirty) { |
0 | 74 HeapWord* p = bottom(); |
75 HeapWord* t = end(); | |
76 HeapWord* prev_p = NULL; | |
77 while (p < t) { | |
78 oop(p)->verify(); | |
79 prev_p = p; | |
80 p += oop(p)->size(); | |
81 } | |
82 guarantee(p == end(), "end of last object must match end of space"); | |
83 } |