Tue, 19 Aug 2014 02:05:49 -0700
8044406: JVM crash with JDK8 (build 1.8.0-b132) with G1 GC
Summary: Fill the last card that has been allocated into with a dummy object
Reviewed-by: tschatzl, mgerdin
1 /*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP
28 #include "memory/allocation.hpp"
30 class G1Log : public AllStatic {
31 typedef enum {
32 LevelNone,
33 LevelFine,
34 LevelFiner,
35 LevelFinest
36 } LogLevel;
38 static LogLevel _level;
40 public:
41 inline static bool fine() {
42 return _level >= LevelFine;
43 }
45 inline static bool finer() {
46 return _level >= LevelFiner;
47 }
49 inline static bool finest() {
50 return _level == LevelFinest;
51 }
53 static void init();
54 };
56 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP