--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/gc_implementation/shared/markSweep.inline.hpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2000-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+inline void MarkSweep::_adjust_pointer(oop* p, bool isroot) {
+ oop obj = *p;
+ VALIDATE_MARK_SWEEP_ONLY(oop saved_new_pointer = NULL);
+ if (obj != NULL) {
+ oop new_pointer = oop(obj->mark()->decode_pointer());
+ assert(new_pointer != NULL || // is forwarding ptr?
+ obj->mark() == markOopDesc::prototype() || // not gc marked?
+ (UseBiasedLocking && obj->mark()->has_bias_pattern()) || // not gc marked?
+ obj->is_shared(), // never forwarded?
+ "should contain a forwarding pointer");
+ if (new_pointer != NULL) {
+ *p = new_pointer;
+ assert(Universe::heap()->is_in_reserved(new_pointer),
+ "should be in object space");
+ VALIDATE_MARK_SWEEP_ONLY(saved_new_pointer = new_pointer);
+ }
+ }
+ VALIDATE_MARK_SWEEP_ONLY(track_adjusted_pointer(p, saved_new_pointer, isroot));
+}
+
+inline void MarkSweep::mark_object(oop obj) {
+
+#ifndef SERIALGC
+ if (UseParallelOldGC && VerifyParallelOldWithMarkSweep) {
+ assert(PSParallelCompact::mark_bitmap()->is_marked(obj),
+ "Should be marked in the marking bitmap");
+ }
+#endif // SERIALGC
+
+ // some marks may contain information we need to preserve so we store them away
+ // and overwrite the mark. We'll restore it at the end of markSweep.
+ markOop mark = obj->mark();
+ obj->set_mark(markOopDesc::prototype()->set_marked());
+
+ if (mark->must_be_preserved(obj)) {
+ preserve_mark(obj, mark);
+ }
+}