--- a/src/hotspot/share/gc/cms/parOopClosures.inline.hpp Fri Nov 08 14:54:17 2019 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,146 +0,0 @@
-/*
- * Copyright (c) 2007, 2019, 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_GC_CMS_PAROOPCLOSURES_INLINE_HPP
-#define SHARE_GC_CMS_PAROOPCLOSURES_INLINE_HPP
-
-#include "gc/cms/cmsHeap.hpp"
-#include "gc/cms/parNewGeneration.hpp"
-#include "gc/cms/parOopClosures.hpp"
-#include "gc/shared/cardTableRS.hpp"
-#include "gc/shared/genOopClosures.inline.hpp"
-#include "logging/log.hpp"
-#include "logging/logStream.hpp"
-#include "oops/access.inline.hpp"
-#include "oops/compressedOops.inline.hpp"
-#include "oops/oop.inline.hpp"
-
-template <class T> inline void ParScanWeakRefClosure::do_oop_work(T* p) {
- oop obj = RawAccess<IS_NOT_NULL>::oop_load(p);
- // weak references are sometimes scanned twice; must check
- // that to-space doesn't already contain this object
- if ((HeapWord*)obj < _boundary && !_g->to()->is_in_reserved(obj)) {
- // we need to ensure that it is copied (see comment in
- // ParScanClosure::do_oop_work).
- Klass* objK = obj->klass();
- markWord m = obj->mark_raw();
- oop new_obj;
- if (m.is_marked()) { // Contains forwarding pointer.
- new_obj = ParNewGeneration::real_forwardee(obj);
- } else {
- size_t obj_sz = obj->size_given_klass(objK);
- new_obj = ((ParNewGeneration*)_g)->copy_to_survivor_space(_par_scan_state,
- obj, obj_sz, m);
- }
- RawAccess<IS_NOT_NULL>::oop_store(p, new_obj);
- }
-}
-
-inline void ParScanWeakRefClosure::do_oop(oop* p) { ParScanWeakRefClosure::do_oop_work(p); }
-inline void ParScanWeakRefClosure::do_oop(narrowOop* p) { ParScanWeakRefClosure::do_oop_work(p); }
-
-template <class T> inline void ParScanClosure::par_do_barrier(T* p) {
- assert(generation()->is_in_reserved(p), "expected ref in generation");
- oop obj = RawAccess<IS_NOT_NULL>::oop_load(p);
- // If p points to a younger generation, mark the card.
- if ((HeapWord*)obj < gen_boundary()) {
- rs()->write_ref_field_gc_par(p, obj);
- }
-}
-
-template <class T>
-inline void ParScanClosure::do_oop_work(T* p,
- bool gc_barrier,
- bool root_scan) {
- assert((!CMSHeap::heap()->is_in_reserved(p) ||
- generation()->is_in_reserved(p))
- && (CMSHeap::heap()->is_young_gen(generation()) || gc_barrier),
- "The gen must be right, and we must be doing the barrier "
- "in older generations.");
- T heap_oop = RawAccess<>::oop_load(p);
- if (!CompressedOops::is_null(heap_oop)) {
- oop obj = CompressedOops::decode_not_null(heap_oop);
- if ((HeapWord*)obj < _boundary) {
-#ifndef PRODUCT
- if (_g->to()->is_in_reserved(obj)) {
- Log(gc) log;
- log.error("Scanning field (" PTR_FORMAT ") twice?", p2i(p));
- CMSHeap* heap = CMSHeap::heap();
- Space* sp = heap->space_containing(p);
- oop obj = oop(sp->block_start(p));
- assert((HeapWord*)obj < (HeapWord*)p, "Error");
- log.error("Object: " PTR_FORMAT, p2i((void *)obj));
- log.error("-------");
- LogStream ls(log.error());
- obj->print_on(&ls);
- log.error("-----");
- log.error("Heap:");
- log.error("-----");
- heap->print_on(&ls);
- ShouldNotReachHere();
- }
-#endif
- // OK, we need to ensure that it is copied.
- // We read the klass and mark in this order, so that we can reliably
- // get the size of the object: if the mark we read is not a
- // forwarding pointer, then the klass is valid: the klass is only
- // overwritten with an overflow next pointer after the object is
- // forwarded.
- Klass* objK = obj->klass();
- markWord m = obj->mark_raw();
- oop new_obj;
- if (m.is_marked()) { // Contains forwarding pointer.
- new_obj = ParNewGeneration::real_forwardee(obj);
- RawAccess<IS_NOT_NULL>::oop_store(p, new_obj);
- log_develop_trace(gc, scavenge)("{%s %s ( " PTR_FORMAT " ) " PTR_FORMAT " -> " PTR_FORMAT " (%d)}",
- "forwarded ",
- new_obj->klass()->internal_name(), p2i(p), p2i((void *)obj), p2i((void *)new_obj), new_obj->size());
- } else {
- size_t obj_sz = obj->size_given_klass(objK);
- new_obj = _g->copy_to_survivor_space(_par_scan_state, obj, obj_sz, m);
- RawAccess<IS_NOT_NULL>::oop_store(p, new_obj);
- if (root_scan) {
- // This may have pushed an object. If we have a root
- // category with a lot of roots, can't let the queue get too
- // full:
- (void)_par_scan_state->trim_queues(10 * ParallelGCThreads);
- }
- }
- if (is_scanning_a_cld()) {
- do_cld_barrier();
- } else if (gc_barrier) {
- // Now call parent closure
- par_do_barrier(p);
- }
- }
- }
-}
-
-inline void ParScanWithBarrierClosure::do_oop(oop* p) { ParScanClosure::do_oop_work(p, true, false); }
-inline void ParScanWithBarrierClosure::do_oop(narrowOop* p) { ParScanClosure::do_oop_work(p, true, false); }
-
-inline void ParScanWithoutBarrierClosure::do_oop(oop* p) { ParScanClosure::do_oop_work(p, false, false); }
-inline void ParScanWithoutBarrierClosure::do_oop(narrowOop* p) { ParScanClosure::do_oop_work(p, false, false); }
-
-#endif // SHARE_GC_CMS_PAROOPCLOSURES_INLINE_HPP