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annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotOptions.java @ 21784:f4e1d958f1c3

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[AMD64] Create AMD64 specific address nodes.
author Roland Schatz <roland.schatz@oracle.com>
date Mon, 08 Jun 2015 19:19:45 +0200
parents 55058b8000ea
children 5b9adb645217
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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.jvmci.hotspot;
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24
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25 import java.util.*;
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26
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27 import com.oracle.jvmci.options.*;
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29 //JaCoCo Exclude
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30
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31 /**
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32 * Sets JVMCI options from the HotSpot command line. Such options are distinguished by the
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33 * {@link #JVMCI_OPTION_PREFIX} prefix.
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34 */
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35 public class HotSpotOptions {
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36
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37 private static final String JVMCI_OPTION_PREFIX = "-G:";
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38
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39 /**
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40 * Called from VM.
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41 */
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42 static void printFlags() {
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43 SortedMap<String, OptionDescriptor> options = new TreeMap<>();
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45 for (Options opts : ServiceLoader.load(Options.class, HotSpotOptions.class.getClassLoader())) {
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46 for (OptionDescriptor desc : opts) {
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47 if (isHotSpotOption(desc)) {
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48 String name = desc.getName();
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49 OptionDescriptor existing = options.put(name, desc);
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50 assert existing == null : "Option named \"" + name + "\" has multiple definitions: " + existing.getLocation() + " and " + desc.getLocation();
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51 }
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52 }
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53 }
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54
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55 OptionUtils.printFlags(options, JVMCI_OPTION_PREFIX);
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56 }
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57
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58 /**
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59 * Determines if a given option is a HotSpot command line option.
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60 */
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61 private static boolean isHotSpotOption(OptionDescriptor desc) {
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62 return desc.getDeclaringClass().getName().startsWith("com.oracle.graal");
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63 }
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64 }