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src/share/vm/memory/generationSpec.cpp@ec98e58952b2 (annotated)

src/share/vm/memory/generationSpec.cpp

Tue, 11 Sep 2012 14:59:23 +0200

author

stefank

date

Tue, 11 Sep 2012 14:59:23 +0200

changeset 4050

ec98e58952b2

parent 4037

da91efe96a93

child 4542

db9981fd3124

permissions

-rw-r--r--

7197350: NPG: jvmtiHeapReferenceCallback receives incorrect reference_kind for system class roots
Summary: Fix the iteration over the system classes and report the correct reference kind.
Reviewed-by: coleenp, rbackman

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
coleenp@4037	26	#include "memory/binaryTreeDictionary.hpp"
stefank@2314	27	#include "memory/defNewGeneration.hpp"
stefank@2314	28	#include "memory/filemap.hpp"
stefank@2314	29	#include "memory/genRemSet.hpp"
stefank@2314	30	#include "memory/generationSpec.hpp"
stefank@2314	31	#include "memory/tenuredGeneration.hpp"
stefank@2314	32	#include "runtime/java.hpp"
stefank@2314	33	#ifndef SERIALGC
stefank@2314	34	#include "gc_implementation/parNew/asParNewGeneration.hpp"
coleenp@4037	35	#include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
stefank@2314	36	#include "gc_implementation/parNew/parNewGeneration.hpp"
stefank@2314	37	#endif
duke@435	38
duke@435	39	Generation* GenerationSpec::init(ReservedSpace rs, int level,
duke@435	40	GenRemSet* remset) {
duke@435	41	switch (name()) {
duke@435	42	case Generation::DefNew:
duke@435	43	return new DefNewGeneration(rs, init_size(), level);
duke@435	44
duke@435	45	case Generation::MarkSweepCompact:
duke@435	46	return new TenuredGeneration(rs, init_size(), level, remset);
duke@435	47
duke@435	48	#ifndef SERIALGC
duke@435	49	case Generation::ParNew:
duke@435	50	return new ParNewGeneration(rs, init_size(), level);
duke@435	51
duke@435	52	case Generation::ASParNew:
duke@435	53	return new ASParNewGeneration(rs,
duke@435	54	init_size(),
duke@435	55	init_size() /* min size */,
duke@435	56	level);
duke@435	57
duke@435	58	case Generation::ConcurrentMarkSweep: {
duke@435	59	assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435	60	CardTableRS* ctrs = remset->as_CardTableRS();
duke@435	61	if (ctrs == NULL) {
duke@435	62	vm_exit_during_initialization("Rem set incompatibility.");
duke@435	63	}
duke@435	64	// Otherwise
duke@435	65	// The constructor creates the CMSCollector if needed,
duke@435	66	// else registers with an existing CMSCollector
duke@435	67
duke@435	68	ConcurrentMarkSweepGeneration* g = NULL;
duke@435	69	g = new ConcurrentMarkSweepGeneration(rs,
duke@435	70	init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
jmasa@3730	71	(FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
duke@435	72
duke@435	73	g->initialize_performance_counters();
duke@435	74
duke@435	75	return g;
duke@435	76	}
duke@435	77
duke@435	78	case Generation::ASConcurrentMarkSweep: {
duke@435	79	assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435	80	CardTableRS* ctrs = remset->as_CardTableRS();
duke@435	81	if (ctrs == NULL) {
duke@435	82	vm_exit_during_initialization("Rem set incompatibility.");
duke@435	83	}
duke@435	84	// Otherwise
duke@435	85	// The constructor creates the CMSCollector if needed,
duke@435	86	// else registers with an existing CMSCollector
duke@435	87
duke@435	88	ASConcurrentMarkSweepGeneration* g = NULL;
duke@435	89	g = new ASConcurrentMarkSweepGeneration(rs,
duke@435	90	init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
jmasa@3730	91	(FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
duke@435	92
duke@435	93	g->initialize_performance_counters();
duke@435	94
duke@435	95	return g;
duke@435	96	}
duke@435	97	#endif // SERIALGC
duke@435	98
duke@435	99	default:
duke@435	100	guarantee(false, "unrecognized GenerationName");
duke@435	101	return NULL;
duke@435	102	}
duke@435	103	}