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annotate src/share/vm/c1x/c1x_VmIds.hpp @ 1434:72cfb36c6bb2

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* enabled all jtt tests * added proxy that counts jni calls * honor hotspot stackshadowpages * constant pool caching * monitor enter/exit * arithmetic stubs (frem, drem, ...) * create stack values for debug info * some doc
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 30 Sep 2010 17:19:48 -0700
parents abc670a709dc
children 9569fdf936ff
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1 /*
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2 * Copyright 2000-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 class VmIds : public AllStatic {
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26
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27 private:
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28 static GrowableArray<address>* _stubs;
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29 static GrowableArray<jobject>* _localHandles;
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30
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31 static oop getObject(jlong id);
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32
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33 public:
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34 // this enum needs to have the same values as the one in HotSpotProxy.java
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35 enum CompilerObjectType {
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36 STUB = 0x100000000000000l, // address
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37 METHOD = 0x200000000000000l, // methodOop
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38 CLASS = 0x300000000000000l, // klassOop
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39 SYMBOL = 0x400000000000000l, // symbolOop
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40 CONSTANT_POOL = 0x500000000000000l, // constantPoolOop
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41 CONSTANT = 0x600000000000000l, // oop
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42 TYPE_MASK = 0xf00000000000000l,
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43 DUMMY_CONSTANT = 0x6ffffffffffffffl
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44 };
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45
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46 // Initializes the VmIds for a compilation, by creating the arrays
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47 static void initializeObjects();
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48 // Cleans up after a compilation, by deallocating the arrays
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49 static void cleanupLocalObjects();
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50
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51 // Adds a stub address, and returns the corresponding vmId (which is of type STUB)
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52 static jlong addStub(address stub);
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53
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54 // Adds an object, and returns the corresponding vmId (with the given type)
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55 static jlong add(Handle obj, CompilerObjectType type);
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56
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57 // Adds an object, and returns the corresponding vmId (the type of which is determined by the template parameter)
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58 template <typename T> static jlong add(T obj);
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59
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60
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61 // Returns the stub address with the given vmId
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62 static address getStub(jlong id);
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63 // Returns the stub address with the given vmId taken from a java.lang.Long
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64 static address getStub(oop id);
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65
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66 // 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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67 template <typename T> static T get(jlong id);
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68
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69
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70 // Helper function to convert a symbolOop to a java.lang.String object
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71 template <typename T> static T toString(symbolOop symbol, TRAPS);
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72
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73 // Helper function to convert a java.lang.String object to a symbolOop (this will return NULL if the symbol doesn't exist in the system)
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74 static symbolOop toSymbol(jstring string);
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75
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76 // Helper function to get the contents of a java.lang.Long
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77 static jlong getBoxedLong(oop obj);
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78 };
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79
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80
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81 template <> inline jlong VmIds::add<methodOop>(methodOop obj){
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82 assert(obj != NULL, "trying to add NULL<methodOop>");
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83 assert(obj->is_method(), "trying to add mistyped object");
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84 return add(Handle(obj), METHOD);
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85 }
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86 template <> inline jlong VmIds::add<klassOop>(klassOop obj) {
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87 assert(obj != NULL, "trying to add NULL<klassOop>");
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88 assert(obj->is_klass(), "trying to add mistyped object");
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89 return add(Handle(obj), CLASS);
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90 }
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91 template <> inline jlong VmIds::add<symbolOop>(symbolOop obj) {
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92 assert(obj != NULL, "trying to add NULL<symbolOop>");
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93 assert(obj->is_symbol(), "trying to add mistyped object");
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94 return add(Handle(obj), SYMBOL);
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95 }
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96 template <> inline jlong VmIds::add<constantPoolOop>(constantPoolOop obj) {
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97 assert(obj != NULL, "trying to add NULL<constantPoolOop>");
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98 assert(obj->is_constantPool(), "trying to add mistyped object");
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99 return add(Handle(obj), CONSTANT_POOL);
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100 }
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101 template <> inline jlong VmIds::add<oop>(oop obj) {
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102 assert(obj != NULL, "trying to add NULL<oop>");
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103 assert(obj->is_oop(), "trying to add mistyped object");
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104 return add(Handle(obj), CONSTANT);
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105 }
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106
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107
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108 template <> inline methodOop VmIds::get<methodOop>(jlong id){
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109 assert((id & TYPE_MASK) == METHOD, "METHOD expected");
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110 assert(getObject(id)->is_method(), "methodOop expected");
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111 return (methodOop)getObject(id);
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112 }
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113 template <> inline klassOop VmIds::get<klassOop>(jlong id) {
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114 assert((id & TYPE_MASK) == CLASS, "CLASS expected");
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115 assert(getObject(id)->is_klass(), "klassOop expected");
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116 return (klassOop)getObject(id);
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117 }
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118 template <> inline symbolOop VmIds::get<symbolOop>(jlong id) {
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119 assert((id & TYPE_MASK) == SYMBOL, "SYMBOL expected");
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120 assert(getObject(id)->is_symbol(), "symbolOop expected");
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121 return (symbolOop)getObject(id);
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122 }
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123 template <> inline constantPoolOop VmIds::get<constantPoolOop>(jlong id) {
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124 assert((id & TYPE_MASK) == CONSTANT_POOL, "CONSTANT_POOL expected");
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125 assert(getObject(id)->is_constantPool(), "constantPoolOop expected");
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126 return (constantPoolOop)getObject(id);
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127 }
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128 template <> inline oop VmIds::get<oop>(jlong id) {
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129 assert((id & TYPE_MASK) == CONSTANT, "CONSTANT expected");
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130 assert(getObject(id)->is_oop(true), "oop expected");
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131 return (oop)getObject(id);
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132 }
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133
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134 inline address VmIds::getStub(oop obj) {
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135 return getStub(getBoxedLong(obj));
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136 }
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137
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138 template <> inline Handle VmIds::toString<Handle>(symbolOop symbol, TRAPS) {
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139 return java_lang_String::create_from_symbol(symbol, THREAD);
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140 }
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141 template <> inline oop VmIds::toString<oop>(symbolOop symbol, TRAPS) {
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142 return toString<Handle>(symbol, THREAD)();
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143 }
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144 template <> inline jstring VmIds::toString<jstring>(symbolOop symbol, TRAPS) {
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145 return (jstring)JNIHandles::make_local(toString<oop>(symbol, THREAD));
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146 }
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147 template <> inline jobject VmIds::toString<jobject>(symbolOop symbol, TRAPS) {
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148 return JNIHandles::make_local(toString<oop>(symbol, THREAD));
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149 }
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150
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151 inline symbolOop VmIds::toSymbol(jstring string) {
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152 return java_lang_String::as_symbol_or_null(JNIHandles::resolve(string));
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153 }
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154
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155 inline jlong VmIds::getBoxedLong(oop obj) {
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156 assert(obj->is_oop(true), "cannot unbox null or non-oop");
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157 return obj->long_field(java_lang_boxing_object::value_offset_in_bytes(T_LONG));
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158 }