1/*
2 * Copyright (c) 2019, Red Hat, Inc. All rights reserved.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHROOTVERIFIER_HPP
25#define SHARE_GC_SHENANDOAH_SHENANDOAHROOTVERIFIER_HPP
26
27#include "memory/allocation.hpp"
28#include "memory/iterator.hpp"
29
30class ShenandoahRootVerifier : public StackObj {
31public:
32 enum RootTypes {
33 SerialRoots = 1 << 0,
34 ThreadRoots = 1 << 1,
35 CodeRoots = 1 << 2,
36 CLDGRoots = 1 << 3,
37 WeakRoots = 1 << 4,
38 StringDedupRoots = 1 << 5,
39 JNIHandleRoots = 1 << 6,
40 AllRoots = (SerialRoots | ThreadRoots | CodeRoots | CLDGRoots | WeakRoots | StringDedupRoots | JNIHandleRoots)
41 };
42
43private:
44 RootTypes _types;
45
46public:
47 ShenandoahRootVerifier();
48
49 void excludes(RootTypes types);
50 void oops_do(OopClosure* cl);
51
52 // Used to seed ShenandoahVerifier, do not honor root type filter
53 void roots_do(OopClosure* cl);
54 void strong_roots_do(OopClosure* cl);
55private:
56 bool verify(RootTypes type) const;
57};
58
59#endif // SHARE_GC_SHENANDOAH_SHENANDOAHROOTVERIFIER_HPP
60