--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/z/zVerify.hpp Mon Jun 10 13:04:12 2019 +0200
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 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_Z_ZVERIFY_HPP
+#define SHARE_GC_Z_ZVERIFY_HPP
+
+#include "memory/allocation.hpp"
+
+class ZVerify : public AllStatic {
+private:
+ template <typename RootsIterator>
+ static void roots_impl();
+ static void roots(bool verify_weaks);
+
+ static void roots_weak();
+ static void roots_concurrent();
+ static void roots_concurrent_weak();
+
+ static void objects(bool verify_weaks);
+
+ static void roots_and_objects(bool visit_weaks);
+
+public:
+ // Verify strong (non-concurrent) roots. Should always be good.
+ static void roots_strong();
+
+ // Verify all strong roots and references after marking.
+ static void after_mark();
+
+ // Verify strong and weak roots and references.
+ static void after_weak_processing();
+};
+
+class VM_ZVerifyOperation : public VM_Operation {
+public:
+ virtual bool needs_inactive_gc_locker() const {
+ // An inactive GC locker is needed in operations where we change the bad
+ // mask or move objects. Changing the bad mask will invalidate all oops,
+ // which makes it conceptually the same thing as moving all objects.
+ return false;
+ }
+
+ virtual void doit() {
+ ZVerify::after_weak_processing();
+ }
+
+ bool success() const {
+ return true;
+ }
+
+ virtual VMOp_Type type() const { return VMOp_ZVerify; }
+};
+
+#endif // SHARE_GC_Z_ZVERIFY_HPP