Mercurial > hg > truffle
annotate src/share/vm/c1x/c1x_VmIds.hpp @ 2645:b2c1e959be46
Clean up around BlockBegin / StdEntry.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 11 May 2011 14:34:29 +0200 |
parents | a384fac3fd34 |
children | d7c0775d7e72 |
rev | line source |
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2516
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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 class Thread; |
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25 |
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26 class VmIds : public AllStatic { |
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27 |
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28 private: |
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29 static GrowableArray<address>* _stubs; |
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30 static GrowableArray<jobject>* _localHandles; |
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31 |
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32 static oop getObject(jlong id); |
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33 |
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34 public: |
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35 // these constants needs to have the same values as the one in HotSpotProxy.java |
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36 static const jlong STUB = 0x100000000000000LL; // address |
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37 static const jlong METHOD = 0x200000000000000LL; // methodOop |
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38 static const jlong CLASS = 0x300000000000000LL; // klassOop |
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39 static const jlong CONSTANT_POOL = 0x500000000000000LL; // constantPoolOop |
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40 static const jlong CONSTANT = 0x600000000000000LL; // oop |
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41 static const jlong TYPE_MASK = 0xf00000000000000LL; |
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42 static const jlong DUMMY_CONSTANT = 0x6ffffffffffffffLL; |
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43 |
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44 // Initializes the VmIds for a compilation, by creating the arrays |
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45 static void initializeObjects(); |
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46 // Cleans up after a compilation, by deallocating the arrays |
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47 static void cleanupLocalObjects(); |
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48 |
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49 // Adds a stub address, and returns the corresponding vmId (which is of type STUB) |
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50 static jlong addStub(address stub); |
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51 |
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52 // Adds an object, and returns the corresponding vmId (with the given type) |
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53 static jlong add(Handle obj, jlong type); |
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54 |
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55 // Adds an object, and returns the corresponding vmId (the type of which is determined by the template parameter) |
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56 template <typename T> static jlong add(T obj); |
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57 |
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58 |
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59 // Returns the stub address with the given vmId |
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60 static address getStub(jlong id); |
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61 // Returns the stub address with the given vmId taken from a java.lang.Long |
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62 static address getStub(oop id); |
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63 |
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64 // Returns the object with the given id, the return type is defined by the template parameter (which must correspond to the actual type of the vmId) |
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65 template <typename T> static T get(jlong id); |
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66 |
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67 |
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68 // Helper function to convert a symbol to a java.lang.String object |
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69 template <typename T> static T toString(Symbol* symbol, TRAPS); |
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70 |
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71 // 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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72 static Symbol* toSymbol(jstring string); |
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73 |
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74 // Helper function to get the contents of a java.lang.Long |
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75 static jlong getBoxedLong(oop obj); |
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76 }; |
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77 |
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78 |
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79 template <> inline jlong VmIds::add<methodOop>(methodOop obj){ |
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80 assert(obj != NULL, "trying to add NULL<methodOop>"); |
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81 assert(obj->is_method(), "trying to add mistyped object"); |
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82 return add(Handle(obj), METHOD); |
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83 } |
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84 template <> inline jlong VmIds::add<klassOop>(klassOop obj) { |
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85 assert(obj != NULL, "trying to add NULL<klassOop>"); |
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86 assert(obj->is_klass(), "trying to add mistyped object"); |
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87 return add(Handle(obj), CLASS); |
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88 } |
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89 template <> inline jlong VmIds::add<constantPoolOop>(constantPoolOop obj) { |
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90 assert(obj != NULL, "trying to add NULL<constantPoolOop>"); |
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91 assert(obj->is_constantPool(), "trying to add mistyped object"); |
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92 return add(Handle(obj), CONSTANT_POOL); |
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93 } |
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94 template <> inline jlong VmIds::add<oop>(oop obj) { |
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95 assert(obj != NULL, "trying to add NULL<oop>"); |
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96 assert(obj->is_oop(), "trying to add mistyped object"); |
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97 return add(Handle(obj), CONSTANT); |
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98 } |
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99 |
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100 |
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101 template <> inline methodOop VmIds::get<methodOop>(jlong id){ |
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102 assert((id & TYPE_MASK) == METHOD, "METHOD expected"); |
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103 assert(getObject(id)->is_method(), "methodOop expected"); |
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104 return (methodOop)getObject(id); |
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105 } |
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106 template <> inline klassOop VmIds::get<klassOop>(jlong id) { |
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107 assert((id & TYPE_MASK) == CLASS, "CLASS expected"); |
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108 assert(getObject(id)->is_klass(), "klassOop expected"); |
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109 return (klassOop)getObject(id); |
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110 } |
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111 template <> inline constantPoolOop VmIds::get<constantPoolOop>(jlong id) { |
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112 assert((id & TYPE_MASK) == CONSTANT_POOL, "CONSTANT_POOL expected"); |
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113 assert(getObject(id)->is_constantPool(), "constantPoolOop expected"); |
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114 return (constantPoolOop)getObject(id); |
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115 } |
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116 template <> inline oop VmIds::get<oop>(jlong id) { |
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117 assert((id & TYPE_MASK) == CONSTANT, "CONSTANT expected"); |
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118 assert(getObject(id)->is_oop(true), "oop expected"); |
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119 return (oop)getObject(id); |
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120 } |
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121 |
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122 inline address VmIds::getStub(oop obj) { |
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123 return getStub(getBoxedLong(obj)); |
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124 } |
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125 |
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126 template <> inline Handle VmIds::toString<Handle>(Symbol* symbol, TRAPS) { |
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127 return java_lang_String::create_from_symbol(symbol, THREAD); |
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128 } |
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129 template <> inline oop VmIds::toString<oop>(Symbol* symbol, TRAPS) { |
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130 return toString<Handle>(symbol, THREAD)(); |
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131 } |
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132 template <> inline jstring VmIds::toString<jstring>(Symbol* symbol, TRAPS) { |
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133 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD)); |
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134 } |
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135 template <> inline jobject VmIds::toString<jobject>(Symbol* symbol, TRAPS) { |
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136 return JNIHandles::make_local(toString<oop>(symbol, THREAD)); |
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137 } |
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138 |
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139 inline Symbol* VmIds::toSymbol(jstring string) { |
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140 return java_lang_String::as_symbol_or_null(JNIHandles::resolve(string)); |
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141 } |
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142 |
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143 inline jlong VmIds::getBoxedLong(oop obj) { |
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144 assert(obj->is_oop(true), "cannot unbox null or non-oop"); |
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145 return obj->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG)); |
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146 } |