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annotate src/share/vm/graal/graalVmIds.hpp @ 4484:14a00ee82980

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Implement eager type resolving.
author Andreas Woess <andreas.woess@jku.at>
date Tue, 07 Feb 2012 21:15:58 +0100
parents 50a1d38cd7ac
children 120820e30baa
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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
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24 #include "memory/allocation.hpp"
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25 #include "utilities/growableArray.hpp"
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26 #include "oops/oop.hpp"
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27 #include "runtime/handles.hpp"
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28 #include "runtime/thread.hpp"
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29 #include "classfile/javaClasses.hpp"
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30 #include "runtime/jniHandles.hpp"
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31
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32 class VmIds : public AllStatic {
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33
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34 public:
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35 // Adds a stub address, and returns the corresponding vmId (which is of type STUB)
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36 static jlong addStub(address stub);
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37
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38 // Returns the stub address with the given vmId
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39 static address getStub(jlong id);
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41 // Returns the stub address with the given vmId taken from a java.lang.Long
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42 static address getStub(oop id);
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43
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44 // Helper function to convert a symbol to a java.lang.String object
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45 template <typename T> static T toString(Symbol* symbol, TRAPS);
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46
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47 // Helper function to convert a java.lang.String object to a symbol (this will return NULL if the symbol doesn't exist in the system)
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48 static Symbol* toSymbol(jstring string);
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49
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50 // Helper function to get the contents of a java.lang.Long
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51 static jlong getBoxedLong(oop obj);
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52 };
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53
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54 inline address VmIds::getStub(oop obj) {
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55 return getStub(getBoxedLong(obj));
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56 }
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57
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58 template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) {
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59 return java_lang_String::create_from_symbol(symbol, THREAD);
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60 }
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61
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62 template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) {
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63 return toString<Handle>(symbol, THREAD)();
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64 }
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65
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66 template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) {
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67 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD));
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68 }
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70 template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) {
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71 return JNIHandles::make_local(toString<oop>(symbol, THREAD));
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72 }
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73
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74 inline Symbol* VmIds::toSymbol(jstring string) {
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75 return java_lang_String::as_symbol(JNIHandles::resolve(string), Thread::current());
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76 }
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77
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78 inline jlong VmIds::getBoxedLong(oop obj) {
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79 assert(obj->is_oop(true), "cannot unbox null or non-oop");
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80 return obj->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG));
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81 }
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82