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annotate jvmci/jdk.vm.ci.runtime/src/jdk/vm/ci/runtime/JVMCI.java @ 24225:a2dbb6fcc923

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Added tag jvmci-0.33 for changeset 3aed4cb813f4
author Doug Simon <doug.simon@oracle.com>
date Fri, 18 Aug 2017 22:47:33 +0200
parents 1bbd4a7c274b
children
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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
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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
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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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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1bbd4a7c274b Rename jdk.internal.jvmci to jdk.vm.ci
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23 package jdk.vm.ci.runtime;
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24
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25 import java.util.Formatter;
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26
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27 public class JVMCI {
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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 public static void initialize() {
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34 // force static initializer
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35 }
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36
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37 /**
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38 * Gets the singleton {@link JVMCIRuntime} instance available to the application.
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39 *
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40 * @throws UnsupportedOperationException if JVMCI is not supported
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41 */
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42 public static JVMCIRuntime getRuntime() {
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43 if (runtime == null) {
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44 String javaHome = System.getProperty("java.home");
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45 String vmName = System.getProperty("java.vm.name");
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46 Formatter errorMessage = new Formatter();
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47 errorMessage.format("The VM does not support the JVMCI API.%n");
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48 errorMessage.format("Currently used Java home directory is %s.%n", javaHome);
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49 errorMessage.format("Currently used VM configuration is: %s", vmName);
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50 throw new UnsupportedOperationException(errorMessage.toString());
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51 }
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52 return runtime;
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53 }
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54
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55 static {
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56 JVMCIRuntime rt = null;
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57 try {
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58 rt = initializeRuntime();
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59 } catch (UnsatisfiedLinkError e) {
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60 }
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61 runtime = rt;
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62 }
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63 }