Mercurial > hg > graal-jvmci-8
comparison test/compiler/testlibrary/rtm/BufferOverflowProvoker.java @ 17871:665bbe93823f
8039499: Add all common classes used by tests on RTM support to testlibrary
Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com
author | iignatyev |
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date | Mon, 14 Apr 2014 19:29:34 +0400 |
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17870:a0eb3f61d34a | 17871:665bbe93823f |
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1 /* | |
2 * Copyright (c) 2014, 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 */ | |
24 | |
25 package rtm; | |
26 | |
27 /** | |
28 * In order to provoke transactional execution abort due to | |
29 * internal's buffer overflow BufferOverflowProvoker modifies | |
30 * 1MB of BYTES during single transaction. | |
31 */ | |
32 class BufferOverflowProvoker extends AbortProvoker { | |
33 /** | |
34 * To force buffer overflow abort we modify memory region with | |
35 * size more then L1d cache size. | |
36 */ | |
37 private static final int MORE_THAN_L1D_SIZE = 1024 * 1024; | |
38 private static final byte[] DATA = new byte[MORE_THAN_L1D_SIZE]; | |
39 | |
40 @Override | |
41 public void forceAbort() { | |
42 synchronized(monitor) { | |
43 for (int i = 0; i < BufferOverflowProvoker.DATA.length; i++) { | |
44 BufferOverflowProvoker.DATA[i]++; | |
45 } | |
46 } | |
47 } | |
48 } |