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annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotOptions.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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21551
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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1 /*
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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2 * Copyright (c) 2011, 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
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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6 * under the terms of the GNU General Public License version 2 only, as
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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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
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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12 * version 2 for more details (a copy is included in the LICENSE file that
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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13 * accompanied this code).
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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14 *
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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15 * You should have received a copy of the GNU General Public License version
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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16 * 2 along with this work; if not, write to the Free Software Foundation,
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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20 * or visit www.oracle.com if you need additional information or have any
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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21 * questions.
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22 */
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23 package com.oracle.jvmci.hotspot;
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24
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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25 import static com.oracle.jvmci.hotspot.HotSpotOptionsLoader.*;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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26 import static java.lang.Double.*;
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27
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28 import com.oracle.graal.debug.*;
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29 import com.oracle.graal.options.*;
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30 import com.oracle.graal.options.OptionUtils.OptionConsumer;
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31 import com.oracle.jvmci.runtime.*;
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32
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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33 //JaCoCo Exclude
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34
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35 /**
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36 * Sets Graal options from the HotSpot command line. Such options are distinguished by the
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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37 * {@link #GRAAL_OPTION_PREFIX} prefix.
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38 */
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39 public class HotSpotOptions {
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40
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41 private static final String GRAAL_OPTION_PREFIX = "-G:";
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42
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43 /**
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44 * Parses the JVMCI specific options specified to HotSpot (e.g., on the command line).
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45 *
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46 * @param optionsParsedClass the {@link Class} for {@link OptionsParsed}
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47 * @return the implementations of {@link OptionsParsed} available
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48 */
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49 private static native OptionsParsed[] parseVMOptions(Class<?> optionsParsedClass);
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50
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51 static {
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52 // Debug should not be initialized until all options that may affect
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53 // its initialization have been processed.
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54 assert !Debug.Initialization.isDebugInitialized() : "The class " + Debug.class.getName() + " must not be initialized before the JVMCI runtime has been initialized. " +
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55 "This can be fixed by placing a call to " + JVMCI.class.getName() + ".getRuntime() on the path that triggers initialization of " + Debug.class.getName();
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56
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57 for (OptionsParsed handler : parseVMOptions(OptionsParsed.class)) {
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58 handler.apply();
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59 }
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60 }
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61
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62 /**
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63 * Ensures {@link HotSpotOptions} is initialized.
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64 */
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65 public static void initialize() {
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66 }
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67
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68 /**
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69 * Helper for the VM code called by {@link #parseVMOptions}.
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70 *
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71 * @param name the name of a parsed option
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72 * @param option the object encapsulating the option
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73 * @param spec specification of boolean option value, type of option value or action to take
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74 */
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75 static void setOption(String name, OptionValue<?> option, char spec, String stringValue, long primitiveValue) {
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76 switch (spec) {
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77 case '+':
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78 option.setValue(Boolean.TRUE);
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79 break;
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80 case '-':
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81 option.setValue(Boolean.FALSE);
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82 break;
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83 case '?':
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84 OptionUtils.printFlags(options, GRAAL_OPTION_PREFIX);
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85 break;
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86 case ' ':
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87 OptionUtils.printNoMatchMessage(options, name, GRAAL_OPTION_PREFIX);
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88 break;
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89 case 'i':
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90 option.setValue((int) primitiveValue);
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91 break;
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92 case 'f':
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93 option.setValue((float) longBitsToDouble(primitiveValue));
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94 break;
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95 case 'd':
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96 option.setValue(longBitsToDouble(primitiveValue));
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97 break;
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98 case 's':
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99 option.setValue(stringValue);
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100 break;
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101 }
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102 }
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103
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104 /**
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105 * Parses a given option value specification.
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106 *
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107 * @param option the specification of an option and its value
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108 * @param setter the object to notify of the parsed option and value. If null, the
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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109 * {@link OptionValue#setValue(Object)} method of the specified option is called
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110 * instead.
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111 */
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112 public static boolean parseOption(String option, OptionConsumer setter) {
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113 return OptionUtils.parseOption(options, option, GRAAL_OPTION_PREFIX, setter);
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114 }
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115 }