Mercurial > hg > truffle
annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotOptions.java @ 21696:ca140f8c35be
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author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 03 Jun 2015 14:08:29 +0200 |
parents | 93f282187d90 |
children | 55058b8000ea |
rev | line source |
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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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28 import com.oracle.jvmci.service.*; |
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29 |
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30 //JaCoCo Exclude |
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31 |
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32 /** |
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33 * Sets JVMCI options from the HotSpot command line. Such options are distinguished by the |
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34 * {@link #JVMCI_OPTION_PREFIX} prefix. |
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35 */ |
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36 public class HotSpotOptions { |
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37 |
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38 private static final String JVMCI_OPTION_PREFIX = "-G:"; |
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39 |
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40 /** |
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41 * Called from VM. |
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42 */ |
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43 static void printFlags() { |
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44 SortedMap<String, OptionDescriptor> options = new TreeMap<>(); |
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45 for (Options opts : Services.load(Options.class)) { |
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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 } |