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annotate src/share/vm/runtime/jniPeriodicChecker.hpp @ 14206:e7b58922266b
8028412: AsyncGetCallTrace() is broken on x86 in JDK 7u40
Reviewed-by: kvn, sspitsyn
author | mgronlun |
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date | Thu, 05 Dec 2013 12:35:38 +0100 |
parents | f95d63e2154a |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_JNIPERIODICCHECKER_HPP |
26 #define SHARE_VM_RUNTIME_JNIPERIODICCHECKER_HPP | |
27 | |
0 | 28 class JniPeriodicCheckerTask; |
29 | |
30 /* | |
31 * This gets activated under Xcheck:jni (CheckJNICalls), and is typically | |
32 * to detect any errors caused by JNI applications, such as signal handler, | |
33 * hijacking, va 0x0 hijacking either by mmap or an OS error. | |
34 */ | |
35 | |
36 | |
37 class JniPeriodicChecker : AllStatic { | |
38 | |
39 friend class JniPeriodicCheckerTask; | |
40 | |
41 private: | |
42 static JniPeriodicCheckerTask* _task; | |
43 | |
44 public: | |
45 // Start/stop task | |
46 static void engage(); | |
47 static void disengage(); | |
48 | |
49 static bool is_active() { return _task != NULL; } | |
50 | |
51 static void initialize(); | |
52 static void destroy(); | |
53 }; | |
54 | |
55 void jniPeriodicChecker_exit(); | |
1972 | 56 |
57 #endif // SHARE_VM_RUNTIME_JNIPERIODICCHECKER_HPP |