Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp @ 1829:fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
Summary: Set upper limit 256 for ObjectAlignmentInBytes value.
Reviewed-by: never, iveresov
author | kvn |
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date | Tue, 05 Oct 2010 08:57:20 -0700 |
parents | 9d7a8ab3736b |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
1665 | 2 * Copyright (c) 2002, 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 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_psTasks.cpp.incl" | |
27 | |
28 // | |
29 // ScavengeRootsTask | |
30 // | |
31 | |
32 // Define before use | |
33 class PSScavengeRootsClosure: public OopClosure { | |
34 private: | |
35 PSPromotionManager* _promotion_manager; | |
36 | |
113
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37 protected: |
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38 template <class T> void do_oop_work(T *p) { |
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39 if (PSScavenge::should_scavenge(p)) { |
0 | 40 // We never card mark roots, maybe call a func without test? |
41 PSScavenge::copy_and_push_safe_barrier(_promotion_manager, p); | |
42 } | |
43 } | |
113
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44 public: |
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45 PSScavengeRootsClosure(PSPromotionManager* pm) : _promotion_manager(pm) { } |
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46 void do_oop(oop* p) { PSScavengeRootsClosure::do_oop_work(p); } |
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47 void do_oop(narrowOop* p) { PSScavengeRootsClosure::do_oop_work(p); } |
0 | 48 }; |
49 | |
50 void ScavengeRootsTask::do_it(GCTaskManager* manager, uint which) { | |
51 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
52 | |
53 PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which); | |
54 PSScavengeRootsClosure roots_closure(pm); | |
55 | |
56 switch (_root_type) { | |
57 case universe: | |
58 Universe::oops_do(&roots_closure); | |
59 ReferenceProcessor::oops_do(&roots_closure); | |
60 break; | |
61 | |
62 case jni_handles: | |
63 JNIHandles::oops_do(&roots_closure); | |
64 break; | |
65 | |
66 case threads: | |
67 { | |
68 ResourceMark rm; | |
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69 Threads::oops_do(&roots_closure, NULL); |
0 | 70 } |
71 break; | |
72 | |
73 case object_synchronizer: | |
74 ObjectSynchronizer::oops_do(&roots_closure); | |
75 break; | |
76 | |
77 case flat_profiler: | |
78 FlatProfiler::oops_do(&roots_closure); | |
79 break; | |
80 | |
81 case system_dictionary: | |
82 SystemDictionary::oops_do(&roots_closure); | |
83 break; | |
84 | |
85 case management: | |
86 Management::oops_do(&roots_closure); | |
87 break; | |
88 | |
89 case jvmti: | |
90 JvmtiExport::oops_do(&roots_closure); | |
91 break; | |
92 | |
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93 |
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94 case code_cache: |
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95 { |
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96 CodeBlobToOopClosure each_scavengable_code_blob(&roots_closure, /*do_marking=*/ true); |
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97 CodeCache::scavenge_root_nmethods_do(&each_scavengable_code_blob); |
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98 } |
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99 break; |
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100 |
0 | 101 default: |
102 fatal("Unknown root type"); | |
103 } | |
104 | |
105 // Do the real work | |
106 pm->drain_stacks(false); | |
107 } | |
108 | |
109 // | |
110 // ThreadRootsTask | |
111 // | |
112 | |
113 void ThreadRootsTask::do_it(GCTaskManager* manager, uint which) { | |
114 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
115 | |
116 PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which); | |
117 PSScavengeRootsClosure roots_closure(pm); | |
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118 CodeBlobToOopClosure roots_in_blobs(&roots_closure, /*do_marking=*/ true); |
0 | 119 |
120 if (_java_thread != NULL) | |
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121 _java_thread->oops_do(&roots_closure, &roots_in_blobs); |
0 | 122 |
123 if (_vm_thread != NULL) | |
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124 _vm_thread->oops_do(&roots_closure, &roots_in_blobs); |
0 | 125 |
126 // Do the real work | |
127 pm->drain_stacks(false); | |
128 } | |
129 | |
130 // | |
131 // StealTask | |
132 // | |
133 | |
134 StealTask::StealTask(ParallelTaskTerminator* t) : | |
135 _terminator(t) {} | |
136 | |
137 void StealTask::do_it(GCTaskManager* manager, uint which) { | |
138 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
139 | |
140 PSPromotionManager* pm = | |
141 PSPromotionManager::gc_thread_promotion_manager(which); | |
142 pm->drain_stacks(true); | |
143 guarantee(pm->stacks_empty(), | |
144 "stacks should be empty at this point"); | |
145 | |
146 int random_seed = 17; | |
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147 while(true) { |
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148 StarTask p; |
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149 if (PSPromotionManager::steal_depth(which, &random_seed, p)) { |
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150 TASKQUEUE_STATS_ONLY(pm->record_steal(p)); |
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151 pm->process_popped_location_depth(p); |
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152 pm->drain_stacks_depth(true); |
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153 } else { |
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154 if (terminator()->offer_termination()) { |
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155 break; |
0 | 156 } |
157 } | |
158 } | |
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159 guarantee(pm->stacks_empty(), "stacks should be empty at this point"); |
0 | 160 } |
161 | |
162 // | |
163 // SerialOldToYoungRootsTask | |
164 // | |
165 | |
166 void SerialOldToYoungRootsTask::do_it(GCTaskManager* manager, uint which) { | |
167 assert(_gen != NULL, "Sanity"); | |
168 assert(_gen->object_space()->contains(_gen_top) || _gen_top == _gen->object_space()->top(), "Sanity"); | |
169 | |
170 { | |
171 PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which); | |
172 | |
173 assert(Universe::heap()->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); | |
174 CardTableExtension* card_table = (CardTableExtension *)Universe::heap()->barrier_set(); | |
175 // FIX ME! Assert that card_table is the type we believe it to be. | |
176 | |
177 card_table->scavenge_contents(_gen->start_array(), | |
178 _gen->object_space(), | |
179 _gen_top, | |
180 pm); | |
181 | |
182 // Do the real work | |
183 pm->drain_stacks(false); | |
184 } | |
185 } | |
186 | |
187 // | |
188 // OldToYoungRootsTask | |
189 // | |
190 | |
191 void OldToYoungRootsTask::do_it(GCTaskManager* manager, uint which) { | |
192 assert(_gen != NULL, "Sanity"); | |
193 assert(_gen->object_space()->contains(_gen_top) || _gen_top == _gen->object_space()->top(), "Sanity"); | |
194 assert(_stripe_number < ParallelGCThreads, "Sanity"); | |
195 | |
196 { | |
197 PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which); | |
198 | |
199 assert(Universe::heap()->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); | |
200 CardTableExtension* card_table = (CardTableExtension *)Universe::heap()->barrier_set(); | |
201 // FIX ME! Assert that card_table is the type we believe it to be. | |
202 | |
203 card_table->scavenge_contents_parallel(_gen->start_array(), | |
204 _gen->object_space(), | |
205 _gen_top, | |
206 pm, | |
207 _stripe_number); | |
208 | |
209 // Do the real work | |
210 pm->drain_stacks(false); | |
211 } | |
212 } |