Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 1779:6eddcbe17c83
6981746: G1: SEGV with -XX:+TraceGen0Time
Summary: Pass correct value for length to NumberSeq constructor. Guard dereferences of "body_summary" pointer with a NULL check.
Reviewed-by: tonyp, ysr
author | johnc |
---|---|
date | Mon, 13 Sep 2010 10:00:24 -0700 |
parents | bb847e31b836 |
children | f95d63e2154a |
rev | line source |
---|---|
342 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
752
diff
changeset
|
2 * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved. |
342 | 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
752
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
752
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
752
diff
changeset
|
21 * questions. |
342 | 22 * |
23 */ | |
24 | |
25 // Inline functions for G1CollectedHeap | |
26 | |
27 inline HeapRegion* | |
28 G1CollectedHeap::heap_region_containing(const void* addr) const { | |
29 HeapRegion* hr = _hrs->addr_to_region(addr); | |
30 // hr can be null if addr in perm_gen | |
31 if (hr != NULL && hr->continuesHumongous()) { | |
32 hr = hr->humongous_start_region(); | |
33 } | |
34 return hr; | |
35 } | |
36 | |
37 inline HeapRegion* | |
38 G1CollectedHeap::heap_region_containing_raw(const void* addr) const { | |
526 | 39 assert(_g1_reserved.contains(addr), "invariant"); |
752
a2957df801a1
6833576: G1: assert illegal index, growableArray.hpp:186
johnc
parents:
579
diff
changeset
|
40 size_t index = pointer_delta(addr, _g1_reserved.start(), 1) |
a2957df801a1
6833576: G1: assert illegal index, growableArray.hpp:186
johnc
parents:
579
diff
changeset
|
41 >> HeapRegion::LogOfHRGrainBytes; |
a2957df801a1
6833576: G1: assert illegal index, growableArray.hpp:186
johnc
parents:
579
diff
changeset
|
42 |
526 | 43 HeapRegion* res = _hrs->at(index); |
44 assert(res == _hrs->addr_to_region(addr), "sanity"); | |
342 | 45 return res; |
46 } | |
47 | |
48 inline bool G1CollectedHeap::obj_in_cs(oop obj) { | |
49 HeapRegion* r = _hrs->addr_to_region(obj); | |
50 return r != NULL && r->in_collection_set(); | |
51 } | |
52 | |
53 inline HeapWord* G1CollectedHeap::attempt_allocation(size_t word_size, | |
54 bool permit_collection_pause) { | |
55 HeapWord* res = NULL; | |
56 | |
57 assert( SafepointSynchronize::is_at_safepoint() || | |
58 Heap_lock->owned_by_self(), "pre-condition of the call" ); | |
59 | |
1718
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
60 // All humongous allocation requests should go through the slow path in |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
61 // attempt_allocation_slow(). |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
62 if (!isHumongous(word_size) && _cur_alloc_region != NULL) { |
342 | 63 // If this allocation causes a region to become non empty, |
64 // then we need to update our free_regions count. | |
65 | |
66 if (_cur_alloc_region->is_empty()) { | |
67 res = _cur_alloc_region->allocate(word_size); | |
68 if (res != NULL) | |
69 _free_regions--; | |
70 } else { | |
71 res = _cur_alloc_region->allocate(word_size); | |
72 } | |
1718
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
73 |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
74 if (res != NULL) { |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
75 if (!SafepointSynchronize::is_at_safepoint()) { |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
76 assert( Heap_lock->owned_by_self(), "invariant" ); |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
77 Heap_lock->unlock(); |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
78 } |
bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
tonyp
parents:
1709
diff
changeset
|
79 return res; |
342 | 80 } |
81 } | |
82 // attempt_allocation_slow will also unlock the heap lock when appropriate. | |
83 return attempt_allocation_slow(word_size, permit_collection_pause); | |
84 } | |
85 | |
1709 | 86 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) const { |
342 | 87 return _task_queues->queue(i); |
88 } | |
89 | |
90 inline bool G1CollectedHeap::isMarkedPrev(oop obj) const { | |
91 return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj); | |
92 } | |
93 | |
94 inline bool G1CollectedHeap::isMarkedNext(oop obj) const { | |
95 return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj); | |
96 } |