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comparison src/share/vm/gc_implementation/shared/markSweep.inline.hpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 7913e93dca52
children b735136e0d82
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
86 if (!oopDesc::is_null(heap_oop)) { 86 if (!oopDesc::is_null(heap_oop)) {
87 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); 87 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
88 oop new_obj = oop(obj->mark()->decode_pointer()); 88 oop new_obj = oop(obj->mark()->decode_pointer());
89 assert(new_obj != NULL || // is forwarding ptr? 89 assert(new_obj != NULL || // is forwarding ptr?
90 obj->mark() == markOopDesc::prototype() || // not gc marked? 90 obj->mark() == markOopDesc::prototype() || // not gc marked?
91 (UseBiasedLocking && obj->mark()->has_bias_pattern()) || 91 (UseBiasedLocking && obj->mark()->has_bias_pattern()),
92 // not gc marked? 92 // not gc marked?
93 obj->is_shared(), // never forwarded?
94 "should be forwarded"); 93 "should be forwarded");
95 if (new_obj != NULL) { 94 if (new_obj != NULL) {
96 assert(Universe::heap()->is_in_reserved(new_obj), 95 assert(Universe::heap()->is_in_reserved(new_obj),
97 "should be in object space"); 96 "should be in object space");
98 oopDesc::encode_store_heap_oop_not_null(p, new_obj); 97 oopDesc::encode_store_heap_oop_not_null(p, new_obj);