4396719: Mark Sweep stack overflow on deeply nested Object arrays
Summary: Use an explicit stack for object arrays and process them in chunks.
Reviewed-by: iveresov, apetrusenko
/*
* Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
class VM_ParallelGCFailedAllocation: public VM_GC_Operation {
private:
size_t _size;
bool _is_tlab;
HeapWord* _result;
public:
VM_ParallelGCFailedAllocation(size_t size, bool is_tlab,
unsigned int gc_count);
virtual VMOp_Type type() const {
return VMOp_ParallelGCFailedAllocation;
}
virtual void doit();
HeapWord* result() const { return _result; }
};
class VM_ParallelGCFailedPermanentAllocation: public VM_GC_Operation {
private:
size_t _size;
HeapWord* _result;
public:
VM_ParallelGCFailedPermanentAllocation(size_t size,
unsigned int gc_count,
unsigned int full_gc_count);
virtual VMOp_Type type() const {
return VMOp_ParallelGCFailedPermanentAllocation;
}
virtual void doit();
HeapWord* result() const { return _result; }
};
class VM_ParallelGCSystemGC: public VM_GC_Operation {
public:
VM_ParallelGCSystemGC(unsigned int gc_count, unsigned int full_gc_count,
GCCause::Cause gc_cause);
virtual VMOp_Type type() const { return VMOp_ParallelGCSystemGC; }
virtual void doit();
};