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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/jvmci/HotSpotOptions.java @ 21533:b118c9be1d1f

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fixed regression preventing hosted CompileTheWorld from running (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Sun, 24 May 2015 14:44:28 +0200
parents ee764a50af61
children c1e2fdb5fea3
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1 /*
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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
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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 com.oracle.graal.hotspot.jvmci;
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24
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25 import static com.oracle.graal.hotspot.jvmci.HotSpotOptionsLoader.*;
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26 import static java.lang.Double.*;
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27
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28 import com.oracle.graal.api.runtime.*;
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29 import com.oracle.graal.debug.*;
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30 import com.oracle.graal.options.*;
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31 import com.oracle.graal.options.OptionUtils.OptionConsumer;
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32 import com.oracle.jvmci.runtime.*;
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33
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34 //JaCoCo Exclude
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35
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36 /**
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37 * Sets Graal options from the HotSpot command line. Such options are distinguished by the
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38 * {@link #GRAAL_OPTION_PREFIX} prefix.
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39 */
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40 public class HotSpotOptions {
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41
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42 private static final String GRAAL_OPTION_PREFIX = "-G:";
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43
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44 /**
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45 * Parses the JVMCI specific options specified to HotSpot (e.g., on the command line).
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46 *
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47 * @param optionsParsedClass the {@link Class} for {@link OptionsParsed}
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48 * @return the implementations of {@link OptionsParsed} available
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49 */
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50 private static native OptionsParsed[] parseVMOptions(Class<?> optionsParsedClass);
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51
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52 static {
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53 // Debug should not be initialized until all options that may affect
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54 // its initialization have been processed.
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55 assert !Debug.Initialization.isDebugInitialized() : "The class " + Debug.class.getName() + " must not be initialized before the JVMCI runtime has been initialized. " +
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56 "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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57
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58 for (OptionsParsed handler : parseVMOptions(OptionsParsed.class)) {
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59 handler.apply();
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60 }
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61 }
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62
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63 /**
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64 * Ensures {@link HotSpotOptions} is initialized.
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65 */
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66 public static void initialize() {
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67 }
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68
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69 /**
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70 * Helper for the VM code called by {@link #parseVMOptions}.
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71 *
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72 * @param name the name of a parsed option
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73 * @param option the object encapsulating the option
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74 * @param spec specification of boolean option value, type of option value or action to take
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75 */
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76 static void setOption(String name, OptionValue<?> option, char spec, String stringValue, long primitiveValue) {
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77 switch (spec) {
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78 case '+':
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79 option.setValue(Boolean.TRUE);
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80 break;
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81 case '-':
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82 option.setValue(Boolean.FALSE);
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83 break;
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84 case '?':
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85 OptionUtils.printFlags(options, GRAAL_OPTION_PREFIX);
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86 break;
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87 case ' ':
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88 OptionUtils.printNoMatchMessage(options, name, GRAAL_OPTION_PREFIX);
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89 break;
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90 case 'i':
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91 option.setValue((int) primitiveValue);
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92 break;
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93 case 'f':
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94 option.setValue((float) longBitsToDouble(primitiveValue));
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95 break;
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96 case 'd':
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97 option.setValue(longBitsToDouble(primitiveValue));
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98 break;
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99 case 's':
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100 option.setValue(stringValue);
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101 break;
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102 }
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103 }
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104
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105 /**
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106 * Parses a given option value specification.
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107 *
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108 * @param option the specification of an option and its value
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109 * @param setter the object to notify of the parsed option and value. If null, the
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110 * {@link OptionValue#setValue(Object)} method of the specified option is called
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111 * instead.
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112 */
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113 public static boolean parseOption(String option, OptionConsumer setter) {
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114 return OptionUtils.parseOption(options, option, GRAAL_OPTION_PREFIX, setter);
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115 }
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116 }