1 /* 2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 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 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 #ifndef SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP 26 #define SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP 27 28 #include "gc/serial/markSweep.hpp" 29 #include "memory/universe.hpp" 30 #include "oops/markOop.inline.hpp" 31 #include "oops/oop.inline.hpp" 32 #if INCLUDE_ALL_GCS 33 #include "gc/g1/g1MarkSweep.hpp" 34 #endif // INCLUDE_ALL_GCS 35 36 inline bool MarkSweep::is_archive_object(oop object) { 37 #if INCLUDE_ALL_GCS 38 return (G1MarkSweep::archive_check_enabled() && 39 G1MarkSweep::in_archive_range(object)); 40 #else 41 return false; 42 #endif 43 } 44 45 inline int MarkSweep::adjust_pointers(oop obj) { 46 return obj->ms_adjust_pointers(this); 47 } 48 49 template <class T> inline void MarkSweep::adjust_pointer(T* p) { 50 T heap_oop = oopDesc::load_heap_oop(p); 51 if (!oopDesc::is_null(heap_oop)) { 52 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); 53 assert(Universe::heap()->is_in(obj), "should be in heap"); 54 55 oop new_obj = oop(obj->mark()->decode_pointer()); 56 assert(is_archive_object(obj) || // no forwarding of archive objects 57 new_obj != NULL || // is forwarding ptr? 58 obj->mark() == markOopDesc::prototype() || // not gc marked? 59 (UseBiasedLocking && obj->mark()->has_bias_pattern()), 60 // not gc marked? 61 "should be forwarded"); 62 if (new_obj != NULL) { 63 if (!is_archive_object(obj)) { 64 assert(Universe::heap()->is_in_reserved(new_obj), 65 "should be in object space"); 66 oopDesc::encode_store_heap_oop_not_null(p, new_obj); 67 } 68 } 69 } 70 } 71 72 #endif // SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP