author | stefank |
Tue, 04 Jul 2017 15:58:10 +0200 | |
changeset 46619 | a3919f5e8d2b |
parent 46565 | 8dcbf532ea00 |
child 46625 | edefffab74e2 |
permissions | -rw-r--r-- |
25905
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
1 |
/* |
30764 | 2 |
* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
25905
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
4 |
* |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
5 |
* This code is free software; you can redistribute it and/or modify it |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
7 |
* published by the Free Software Foundation. |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
8 |
* |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
9 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
10 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
11 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
12 |
* version 2 for more details (a copy is included in the LICENSE file that |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
13 |
* accompanied this code). |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
14 |
* |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
15 |
* You should have received a copy of the GNU General Public License version |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
16 |
* 2 along with this work; if not, write to the Free Software Foundation, |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
17 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
18 |
* |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
21 |
* questions. |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
22 |
* |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
23 |
*/ |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
24 |
|
30764 | 25 |
#ifndef SHARE_VM_GC_PARALLEL_PSPROMOTIONLAB_INLINE_HPP |
26 |
#define SHARE_VM_GC_PARALLEL_PSPROMOTIONLAB_INLINE_HPP |
|
25905
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
27 |
|
30764 | 28 |
#include "gc/parallel/psPromotionLAB.hpp" |
29 |
#include "gc/shared/collectedHeap.inline.hpp" |
|
25905
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
30 |
|
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
31 |
HeapWord* PSYoungPromotionLAB::allocate(size_t size) { |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
32 |
// Can't assert this, when young fills, we keep the LAB around, but flushed. |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
33 |
// assert(_state != flushed, "Sanity"); |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
34 |
HeapWord* obj = CollectedHeap::align_allocation_or_fail(top(), end(), SurvivorAlignmentInBytes); |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
35 |
if (obj == NULL) { |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
36 |
return NULL; |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
37 |
} |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
38 |
|
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
39 |
HeapWord* new_top = obj + size; |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
40 |
// The 'new_top>obj' check is needed to detect overflow of obj+size. |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
41 |
if (new_top > obj && new_top <= end()) { |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
42 |
set_top(new_top); |
46619
a3919f5e8d2b
8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents:
46565
diff
changeset
|
43 |
assert(is_aligned(obj, SurvivorAlignmentInBytes) && is_object_aligned(new_top), |
25905
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
44 |
"checking alignment"); |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
45 |
return obj; |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
46 |
} else { |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
47 |
set_top(obj); |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
48 |
return NULL; |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
49 |
} |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
50 |
} |
04a3d83cc752
8031323: Optionally align objects copied to survivor spaces
jmasa
parents:
diff
changeset
|
51 |
|
30764 | 52 |
#endif // SHARE_VM_GC_PARALLEL_PSPROMOTIONLAB_INLINE_HPP |