| /* |
| * Copyright (c) 2000, 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP |
| #define SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP |
| |
| #include "gc/serial/markSweep.hpp" |
| #include "memory/metaspaceShared.hpp" |
| #include "memory/universe.hpp" |
| #include "oops/markOop.inline.hpp" |
| #include "oops/oop.inline.hpp" |
| #if INCLUDE_ALL_GCS |
| #include "gc/g1/g1Allocator.inline.hpp" |
| #endif // INCLUDE_ALL_GCS |
| |
| inline bool MarkSweep::is_closed_archive_object(oop object) { |
| #if INCLUDE_ALL_GCS |
| return G1ArchiveAllocator::is_closed_archive_object(object); |
| #else |
| return false; |
| #endif |
| } |
| |
| inline bool MarkSweep::is_open_archive_object(oop object) { |
| #if INCLUDE_ALL_GCS |
| return G1ArchiveAllocator::is_open_archive_object(object); |
| #else |
| return false; |
| #endif |
| } |
| |
| inline bool MarkSweep::is_archive_object(oop object) { |
| #if INCLUDE_ALL_GCS |
| return G1ArchiveAllocator::is_archive_object(object); |
| #else |
| return false; |
| #endif |
| } |
| |
| inline int MarkSweep::adjust_pointers(oop obj) { |
| return obj->oop_iterate_size(&MarkSweep::adjust_pointer_closure); |
| } |
| |
| template <class T> inline void MarkSweep::adjust_pointer(T* p) { |
| T heap_oop = oopDesc::load_heap_oop(p); |
| if (!oopDesc::is_null(heap_oop)) { |
| oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); |
| assert(Universe::heap()->is_in(obj), "should be in heap"); |
| |
| oop new_obj = oop(obj->mark()->decode_pointer()); |
| |
| assert(is_archive_object(obj) || // no forwarding of archive objects |
| new_obj != NULL || // is forwarding ptr? |
| obj->mark() == markOopDesc::prototype() || // not gc marked? |
| (UseBiasedLocking && obj->mark()->has_bias_pattern()), |
| // not gc marked? |
| "should be forwarded"); |
| |
| #ifndef PRODUCT |
| // open_archive objects are marked by GC. Their mark should |
| // not have forwarding ptr. |
| if (is_open_archive_object(obj)) { |
| assert(new_obj == NULL, "archive heap object has forwarding ptr"); |
| } |
| #endif |
| |
| if (new_obj != NULL) { |
| if (!is_closed_archive_object(obj)) { |
| assert(Universe::heap()->is_in_reserved(new_obj), |
| "should be in object space"); |
| oopDesc::encode_store_heap_oop_not_null(p, new_obj); |
| } |
| } |
| } |
| } |
| |
| #endif // SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP |