Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.runtime/src/jdk/vm/ci/runtime/JVMCICompilerFactory.java @ 23358:7eaa740eaca2
make JVMCICompilerFactory an abstract class with security checks (JDK-8155622)
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 28 Apr 2016 13:04:41 +0200 |
parents | 57646377e480 |
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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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23 package jdk.vm.ci.runtime; |
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24 |
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25 /** |
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26 * Service-provider class for creating JVMCI compilers. |
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27 */ |
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28 public abstract class JVMCICompilerFactory { |
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29 |
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30 private static Void checkPermission() { |
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31 SecurityManager sm = System.getSecurityManager(); |
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32 if (sm != null) |
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33 sm.checkPermission(new RuntimePermission("jvmci")); |
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34 return null; |
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35 } |
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36 |
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37 @SuppressWarnings("unused") |
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38 private JVMCICompilerFactory(Void ignore) { |
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39 } |
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40 |
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41 /** |
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42 * Initializes a new instance of this class. |
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43 * |
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44 * @throws SecurityException if a security manager has been installed and it denies |
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45 * {@code RuntimePermission("jvmci")} |
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46 */ |
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47 protected JVMCICompilerFactory() { |
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48 this(checkPermission()); |
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49 } |
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50 |
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51 /** |
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52 * Get the name of this compiler. The name is used by JVMCI to determine which factory to use. |
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53 */ |
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54 public abstract String getCompilerName(); |
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55 |
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56 /** |
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57 * Notifies this object that it has been selected to {@linkplain #createCompiler(JVMCIRuntime) |
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58 * create} a compiler and it should now perform any heavy weight initialization that it deferred |
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59 * during construction. |
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60 */ |
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61 public void onSelection() { |
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62 } |
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63 |
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64 /** |
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65 * Create a new instance of a {@link JVMCICompiler}. |
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66 */ |
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67 public abstract JVMCICompiler createCompiler(JVMCIRuntime runtime); |
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68 |
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69 /** |
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70 * In a tiered system it might be advantageous for startup to keep the JVMCI compiler from |
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71 * compiling itself so provide a hook to request that certain packages are compiled only by an |
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72 * optimizing first tier. The prefixes should class or package names using / as the separator, |
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73 * i.e. jdk/vm/ci for instance. |
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74 * |
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75 * @return 0 or more Strings identifying packages that should by compiled by the first tier |
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76 * only. |
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77 */ |
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78 public String[] getTrivialPrefixes() { |
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79 return null; |
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80 } |
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81 } |