--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/g1FullGCOopClosures.cpp Tue Nov 14 11:33:23 2017 +0100
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/g1/g1CollectedHeap.hpp"
+#include "gc/g1/g1FullGCMarker.inline.hpp"
+#include "gc/g1/g1FullGCOopClosures.inline.hpp"
+#include "gc/g1/g1_specialized_oop_closures.hpp"
+#include "logging/logStream.hpp"
+
+void G1MarkAndPushClosure::do_oop(oop* p) {
+ do_oop_nv(p);
+}
+
+void G1MarkAndPushClosure::do_oop(narrowOop* p) {
+ do_oop_nv(p);
+}
+
+bool G1MarkAndPushClosure::do_metadata() {
+ return do_metadata_nv();
+}
+
+void G1MarkAndPushClosure::do_klass(Klass* k) {
+ do_klass_nv(k);
+}
+
+void G1MarkAndPushClosure::do_cld(ClassLoaderData* cld) {
+ do_cld_nv(cld);
+}
+
+G1AdjustAndRebuildClosure::G1AdjustAndRebuildClosure(uint worker_id) :
+ _worker_id(worker_id),
+ _compaction_delta(0),
+ _g1h(G1CollectedHeap::heap()) { }
+
+void G1AdjustAndRebuildClosure::update_compaction_delta(oop obj) {
+ if (G1ArchiveAllocator::is_open_archive_object(obj)) {
+ _compaction_delta = 0;
+ return;
+ }
+ oop forwardee = obj->forwardee();
+ if (forwardee == NULL) {
+ // Object not moved.
+ _compaction_delta = 0;
+ } else {
+ // Object moved to forwardee, calculate delta.
+ _compaction_delta = calculate_compaction_delta(obj, forwardee);
+ }
+}
+
+void G1AdjustClosure::do_oop(oop* p) { adjust_pointer(p); }
+void G1AdjustClosure::do_oop(narrowOop* p) { adjust_pointer(p); }
+
+void G1AdjustAndRebuildClosure::do_oop(oop* p) { do_oop_nv(p); }
+void G1AdjustAndRebuildClosure::do_oop(narrowOop* p) { do_oop_nv(p); }
+
+void G1FollowStackClosure::do_void() { _marker->drain_stack(); }
+
+void G1FullKeepAliveClosure::do_oop(oop* p) { do_oop_work(p); }
+void G1FullKeepAliveClosure::do_oop(narrowOop* p) { do_oop_work(p); }
+
+G1VerifyOopClosure::G1VerifyOopClosure(VerifyOption option) :
+ _g1h(G1CollectedHeap::heap()),
+ _containing_obj(NULL),
+ _verify_option(option),
+ _cc(0),
+ _failures(false) {
+}
+
+void G1VerifyOopClosure::print_object(outputStream* out, oop obj) {
+#ifdef PRODUCT
+ Klass* k = obj->klass();
+ const char* class_name = InstanceKlass::cast(k)->external_name();
+ out->print_cr("class name %s", class_name);
+#else // PRODUCT
+ obj->print_on(out);
+#endif // PRODUCT
+}
+
+template <class T> void G1VerifyOopClosure::do_oop_nv(T* p) {
+ T heap_oop = oopDesc::load_heap_oop(p);
+ if (!oopDesc::is_null(heap_oop)) {
+ _cc++;
+ oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
+ bool failed = false;
+ if (!_g1h->is_in_closed_subset(obj) || _g1h->is_obj_dead_cond(obj, _verify_option)) {
+ MutexLockerEx x(ParGCRareEvent_lock,
+ Mutex::_no_safepoint_check_flag);
+ LogStreamHandle(Error, gc, verify) yy;
+ if (!_failures) {
+ yy.cr();
+ yy.print_cr("----------");
+ }
+ if (!_g1h->is_in_closed_subset(obj)) {
+ HeapRegion* from = _g1h->heap_region_containing((HeapWord*)p);
+ yy.print_cr("Field " PTR_FORMAT
+ " of live obj " PTR_FORMAT " in region "
+ "[" PTR_FORMAT ", " PTR_FORMAT ")",
+ p2i(p), p2i(_containing_obj),
+ p2i(from->bottom()), p2i(from->end()));
+ print_object(&yy, _containing_obj);
+ yy.print_cr("points to obj " PTR_FORMAT " not in the heap",
+ p2i(obj));
+ } else {
+ HeapRegion* from = _g1h->heap_region_containing((HeapWord*)p);
+ HeapRegion* to = _g1h->heap_region_containing((HeapWord*)obj);
+ yy.print_cr("Field " PTR_FORMAT
+ " of live obj " PTR_FORMAT " in region "
+ "[" PTR_FORMAT ", " PTR_FORMAT ")",
+ p2i(p), p2i(_containing_obj),
+ p2i(from->bottom()), p2i(from->end()));
+ print_object(&yy, _containing_obj);
+ yy.print_cr("points to dead obj " PTR_FORMAT " in region "
+ "[" PTR_FORMAT ", " PTR_FORMAT ")",
+ p2i(obj), p2i(to->bottom()), p2i(to->end()));
+ print_object(&yy, obj);
+ }
+ yy.print_cr("----------");
+ yy.flush();
+ _failures = true;
+ failed = true;
+ }
+ }
+}
+
+// Generate G1 full GC specialized oop_oop_iterate functions.
+SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1FULL(ALL_KLASS_OOP_OOP_ITERATE_DEFN)