Mercurial > hg > graal-compiler
annotate graal/com.oracle.jvmci.runtime/src/com/oracle/jvmci/runtime/JVMCI.java @ 21694:ed731ad12a10
Make stamp of checkcast more precise.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 03 Jun 2015 13:08:13 +0200 |
parents | 07b088d61d5d |
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rev | line source |
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07b088d61d5d
added HotSpotJVMCIRuntime* classes, replaced references to HotSpotGraalRuntime in VM with HotSpotJVMCIRuntime (JBS:GRAAL-53)
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1 /* |
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
07b088d61d5d
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
07b088d61d5d
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
07b088d61d5d
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12 * version 2 for more details (a copy is included in the LICENSE file that |
07b088d61d5d
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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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. |
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22 */ |
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23 package com.oracle.jvmci.runtime; |
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24 |
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25 import java.util.*; |
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26 |
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27 public class JVMCI { |
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28 |
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29 private static final JVMCIRuntime runtime; |
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30 |
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31 private static native JVMCIRuntime initializeRuntime(); |
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32 |
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33 /** |
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34 * Gets the singleton {@link JVMCIRuntime} instance available to the application. |
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35 * |
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36 * @throws UnsupportedOperationException if JVMCI is not supported |
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37 */ |
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38 public static JVMCIRuntime getRuntime() { |
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39 if (runtime == null) { |
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40 String javaHome = System.getProperty("java.home"); |
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41 String vmName = System.getProperty("java.vm.name"); |
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42 Formatter errorMessage = new Formatter(); |
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43 errorMessage.format("The VM does not support the JVMCI API.%n"); |
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44 errorMessage.format("Currently used Java home directory is %s.%n", javaHome); |
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45 errorMessage.format("Currently used VM configuration is: %s", vmName); |
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46 throw new UnsupportedOperationException(errorMessage.toString()); |
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47 } |
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48 return runtime; |
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49 } |
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50 |
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51 static { |
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52 JVMCIRuntime rt = null; |
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53 try { |
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54 rt = initializeRuntime(); |
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55 } catch (UnsatisfiedLinkError e) { |
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56 } |
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57 runtime = rt; |
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58 } |
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59 } |