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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/stringTable.hpp"
27 #include "classfile/symbolTable.hpp"
28 #include "classfile/systemDictionary.hpp"
29 #include "code/codeCache.hpp"
30 #include "gc/parallel/gcTaskManager.hpp"
31 #include "gc/parallel/parallelScavengeHeap.inline.hpp"
32 #include "gc/parallel/pcTasks.hpp"
33 #include "gc/parallel/psAdaptiveSizePolicy.hpp"
34 #include "gc/parallel/psCompactionManager.inline.hpp"
35 #include "gc/parallel/psMarkSweep.hpp"
36 #include "gc/parallel/psMarkSweepDecorator.hpp"
37 #include "gc/parallel/psOldGen.hpp"
38 #include "gc/parallel/psParallelCompact.inline.hpp"
39 #include "gc/parallel/psPromotionManager.inline.hpp"
40 #include "gc/parallel/psScavenge.hpp"
41 #include "gc/parallel/psYoungGen.hpp"
42 #include "gc/shared/gcCause.hpp"
43 #include "gc/shared/gcHeapSummary.hpp"
44 #include "gc/shared/gcId.hpp"
45 #include "gc/shared/gcLocker.inline.hpp"
46 #include "gc/shared/gcTimer.hpp"
47 #include "gc/shared/gcTrace.hpp"
48 #include "gc/shared/gcTraceTime.inline.hpp"
49 #include "gc/shared/isGCActiveMark.hpp"
50 #include "gc/shared/referencePolicy.hpp"
51 #include "gc/shared/referenceProcessor.hpp"
52 #include "gc/shared/spaceDecorator.hpp"
53 #include "logging/log.hpp"
54 #include "memory/resourceArea.hpp"
55 #include "oops/instanceKlass.inline.hpp"
56 #include "oops/instanceMirrorKlass.inline.hpp"
57 #include "oops/methodData.hpp"
58 #include "oops/objArrayKlass.inline.hpp"
59 #include "oops/oop.inline.hpp"
60 #include "aot/aotLoader.hpp"
61 #include "runtime/atomic.hpp"
62 #include "runtime/fprofiler.hpp"
63 #include "runtime/safepoint.hpp"
64 #include "runtime/vmThread.hpp"
65 #include "services/management.hpp"
66 #include "services/memTracker.hpp"
67 #include "services/memoryService.hpp"
68 #include "utilities/events.hpp"
69 #include "utilities/stack.inline.hpp"
70
71 #include <math.h>
72
73 // All sizes are in HeapWords.
74 const size_t ParallelCompactData::Log2RegionSize = 16; // 64K words
75 const size_t ParallelCompactData::RegionSize = (size_t)1 << Log2RegionSize;
76 const size_t ParallelCompactData::RegionSizeBytes =
77 RegionSize << LogHeapWordSize;
78 const size_t ParallelCompactData::RegionSizeOffsetMask = RegionSize - 1;
79 const size_t ParallelCompactData::RegionAddrOffsetMask = RegionSizeBytes - 1;
80 const size_t ParallelCompactData::RegionAddrMask = ~RegionAddrOffsetMask;
2167 PSParallelCompact::AdjustKlassClosure klass_closure(cm);
2168
2169 // General strong roots.
2170 Universe::oops_do(&oop_closure);
2171 JNIHandles::oops_do(&oop_closure); // Global (strong) JNI handles
2172 Threads::oops_do(&oop_closure, NULL);
2173 ObjectSynchronizer::oops_do(&oop_closure);
2174 FlatProfiler::oops_do(&oop_closure);
2175 Management::oops_do(&oop_closure);
2176 JvmtiExport::oops_do(&oop_closure);
2177 SystemDictionary::oops_do(&oop_closure);
2178 ClassLoaderDataGraph::oops_do(&oop_closure, &klass_closure, true);
2179
2180 // Now adjust pointers in remaining weak roots. (All of which should
2181 // have been cleared if they pointed to non-surviving objects.)
2182 // Global (weak) JNI handles
2183 JNIHandles::weak_oops_do(&oop_closure);
2184
2185 CodeBlobToOopClosure adjust_from_blobs(&oop_closure, CodeBlobToOopClosure::FixRelocations);
2186 CodeCache::blobs_do(&adjust_from_blobs);
2187 if (UseAOT) {
2188 AOTLoader::oops_do(&oop_closure);
2189 }
2190 StringTable::oops_do(&oop_closure);
2191 ref_processor()->weak_oops_do(&oop_closure);
2192 // Roots were visited so references into the young gen in roots
2193 // may have been scanned. Process them also.
2194 // Should the reference processor have a span that excludes
2195 // young gen objects?
2196 PSScavenge::reference_processor()->weak_oops_do(&oop_closure);
2197 }
2198
2199 // Helper class to print 8 region numbers per line and then print the total at the end.
2200 class FillableRegionLogger : public StackObj {
2201 private:
2202 Log(gc, compaction) log;
2203 static const int LineLength = 8;
2204 size_t _regions[LineLength];
2205 int _next_index;
2206 bool _enabled;
2207 size_t _total_regions;
2208 public:
2209 FillableRegionLogger() : _next_index(0), _total_regions(0), _enabled(log_develop_is_enabled(Trace, gc, compaction)) { }
|
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "aot/aotLoader.hpp"
27 #include "classfile/stringTable.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/systemDictionary.hpp"
30 #include "code/codeCache.hpp"
31 #include "gc/parallel/gcTaskManager.hpp"
32 #include "gc/parallel/parallelScavengeHeap.inline.hpp"
33 #include "gc/parallel/pcTasks.hpp"
34 #include "gc/parallel/psAdaptiveSizePolicy.hpp"
35 #include "gc/parallel/psCompactionManager.inline.hpp"
36 #include "gc/parallel/psMarkSweep.hpp"
37 #include "gc/parallel/psMarkSweepDecorator.hpp"
38 #include "gc/parallel/psOldGen.hpp"
39 #include "gc/parallel/psParallelCompact.inline.hpp"
40 #include "gc/parallel/psPromotionManager.inline.hpp"
41 #include "gc/parallel/psScavenge.hpp"
42 #include "gc/parallel/psYoungGen.hpp"
43 #include "gc/shared/gcCause.hpp"
44 #include "gc/shared/gcHeapSummary.hpp"
45 #include "gc/shared/gcId.hpp"
46 #include "gc/shared/gcLocker.inline.hpp"
47 #include "gc/shared/gcTimer.hpp"
48 #include "gc/shared/gcTrace.hpp"
49 #include "gc/shared/gcTraceTime.inline.hpp"
50 #include "gc/shared/isGCActiveMark.hpp"
51 #include "gc/shared/referencePolicy.hpp"
52 #include "gc/shared/referenceProcessor.hpp"
53 #include "gc/shared/spaceDecorator.hpp"
54 #include "logging/log.hpp"
55 #include "memory/resourceArea.hpp"
56 #include "oops/instanceKlass.inline.hpp"
57 #include "oops/instanceMirrorKlass.inline.hpp"
58 #include "oops/methodData.hpp"
59 #include "oops/objArrayKlass.inline.hpp"
60 #include "oops/oop.inline.hpp"
61 #include "runtime/atomic.hpp"
62 #include "runtime/fprofiler.hpp"
63 #include "runtime/safepoint.hpp"
64 #include "runtime/vmThread.hpp"
65 #include "services/management.hpp"
66 #include "services/memTracker.hpp"
67 #include "services/memoryService.hpp"
68 #include "utilities/events.hpp"
69 #include "utilities/stack.inline.hpp"
70
71 #include <math.h>
72
73 // All sizes are in HeapWords.
74 const size_t ParallelCompactData::Log2RegionSize = 16; // 64K words
75 const size_t ParallelCompactData::RegionSize = (size_t)1 << Log2RegionSize;
76 const size_t ParallelCompactData::RegionSizeBytes =
77 RegionSize << LogHeapWordSize;
78 const size_t ParallelCompactData::RegionSizeOffsetMask = RegionSize - 1;
79 const size_t ParallelCompactData::RegionAddrOffsetMask = RegionSizeBytes - 1;
80 const size_t ParallelCompactData::RegionAddrMask = ~RegionAddrOffsetMask;
2167 PSParallelCompact::AdjustKlassClosure klass_closure(cm);
2168
2169 // General strong roots.
2170 Universe::oops_do(&oop_closure);
2171 JNIHandles::oops_do(&oop_closure); // Global (strong) JNI handles
2172 Threads::oops_do(&oop_closure, NULL);
2173 ObjectSynchronizer::oops_do(&oop_closure);
2174 FlatProfiler::oops_do(&oop_closure);
2175 Management::oops_do(&oop_closure);
2176 JvmtiExport::oops_do(&oop_closure);
2177 SystemDictionary::oops_do(&oop_closure);
2178 ClassLoaderDataGraph::oops_do(&oop_closure, &klass_closure, true);
2179
2180 // Now adjust pointers in remaining weak roots. (All of which should
2181 // have been cleared if they pointed to non-surviving objects.)
2182 // Global (weak) JNI handles
2183 JNIHandles::weak_oops_do(&oop_closure);
2184
2185 CodeBlobToOopClosure adjust_from_blobs(&oop_closure, CodeBlobToOopClosure::FixRelocations);
2186 CodeCache::blobs_do(&adjust_from_blobs);
2187 AOTLoader::oops_do(&oop_closure);
2188 StringTable::oops_do(&oop_closure);
2189 ref_processor()->weak_oops_do(&oop_closure);
2190 // Roots were visited so references into the young gen in roots
2191 // may have been scanned. Process them also.
2192 // Should the reference processor have a span that excludes
2193 // young gen objects?
2194 PSScavenge::reference_processor()->weak_oops_do(&oop_closure);
2195 }
2196
2197 // Helper class to print 8 region numbers per line and then print the total at the end.
2198 class FillableRegionLogger : public StackObj {
2199 private:
2200 Log(gc, compaction) log;
2201 static const int LineLength = 8;
2202 size_t _regions[LineLength];
2203 int _next_index;
2204 bool _enabled;
2205 size_t _total_regions;
2206 public:
2207 FillableRegionLogger() : _next_index(0), _total_regions(0), _enabled(log_develop_is_enabled(Trace, gc, compaction)) { }
|