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annotate src/share/vm/prims/methodHandles.cpp @ 6266:1d7922586cf6

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7023639: JSR 292 method handle invocation needs a fast path for compiled code 6984705: JSR 292 method handle creation should not go through JNI Summary: remove assembly code for JDK 7 chained method handles Reviewed-by: jrose, twisti, kvn, mhaupt Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
author twisti
date Tue, 24 Jul 2012 10:51:00 -0700
parents 56c4f88474b3
children 93c71eb28866
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1 /*
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2 * Copyright (c) 2008, 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
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25 #include "precompiled.hpp"
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26 #include "classfile/symbolTable.hpp"
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27 #include "compiler/compileBroker.hpp"
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28 #include "interpreter/interpreter.hpp"
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29 #include "interpreter/oopMapCache.hpp"
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30 #include "memory/allocation.inline.hpp"
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31 #include "memory/oopFactory.hpp"
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32 #include "prims/methodHandles.hpp"
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33 #include "runtime/compilationPolicy.hpp"
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34 #include "runtime/javaCalls.hpp"
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35 #include "runtime/reflection.hpp"
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36 #include "runtime/signature.hpp"
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37 #include "runtime/stubRoutines.hpp"
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38
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39
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40 /*
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41 * JSR 292 reference implementation: method handles
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42 * The JDK 7 reference implementation represented method handle
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43 * combinations as chains. Each link in the chain had a "vmentry"
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44 * field which pointed at a bit of assembly code which performed
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45 * one transformation before dispatching to the next link in the chain.
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46 *
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47 * The current reference implementation pushes almost all code generation
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48 * responsibility to (trusted) Java code. A method handle contains a
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49 * pointer to its "LambdaForm", which embodies all details of the method
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50 * handle's behavior. The LambdaForm is a normal Java object, managed
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51 * by a runtime coded in Java.
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52 */
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53
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54 bool MethodHandles::_enabled = false; // set true after successful native linkage
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55 MethodHandlesAdapterBlob* MethodHandles::_adapter_code = NULL;
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56
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57 //------------------------------------------------------------------------------
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58 // MethodHandles::generate_adapters
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59 //
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60 void MethodHandles::generate_adapters() {
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61 if (!EnableInvokeDynamic || SystemDictionary::MethodHandle_klass() == NULL) return;
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62
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63 assert(_adapter_code == NULL, "generate only once");
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64
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65 ResourceMark rm;
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66 TraceTime timer("MethodHandles adapters generation", TraceStartupTime);
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67 _adapter_code = MethodHandlesAdapterBlob::create(adapter_code_size);
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68 if (_adapter_code == NULL)
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69 vm_exit_out_of_memory(adapter_code_size, "CodeCache: no room for MethodHandles adapters");
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70 {
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71 CodeBuffer code(_adapter_code);
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72 MethodHandlesAdapterGenerator g(&code);
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73 g.generate();
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74 code.log_section_sizes("MethodHandlesAdapterBlob");
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75 }
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76 }
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77
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78 //------------------------------------------------------------------------------
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79 // MethodHandlesAdapterGenerator::generate
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80 //
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81 void MethodHandlesAdapterGenerator::generate() {
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82 // Generate generic method handle adapters.
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83 // Generate interpreter entries
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84 for (Interpreter::MethodKind mk = Interpreter::method_handle_invoke_FIRST;
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85 mk <= Interpreter::method_handle_invoke_LAST;
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86 mk = Interpreter::MethodKind(1 + (int)mk)) {
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87 vmIntrinsics::ID iid = Interpreter::method_handle_intrinsic(mk);
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88 StubCodeMark mark(this, "MethodHandle::interpreter_entry", vmIntrinsics::name_at(iid));
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89 address entry = MethodHandles::generate_method_handle_interpreter_entry(_masm, iid);
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90 if (entry != NULL) {
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91 Interpreter::set_entry_for_kind(mk, entry);
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92 }
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93 // If the entry is not set, it will throw AbstractMethodError.
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94 }
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95 }
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96
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97 void MethodHandles::set_enabled(bool z) {
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98 if (_enabled != z) {
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99 guarantee(z && EnableInvokeDynamic, "can only enable once, and only if -XX:+EnableInvokeDynamic");
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100 _enabled = z;
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101 }
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102 }
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103
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104 // MemberName support
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105
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106 // import java_lang_invoke_MemberName.*
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107 enum {
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108 IS_METHOD = java_lang_invoke_MemberName::MN_IS_METHOD,
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109 IS_CONSTRUCTOR = java_lang_invoke_MemberName::MN_IS_CONSTRUCTOR,
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110 IS_FIELD = java_lang_invoke_MemberName::MN_IS_FIELD,
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111 IS_TYPE = java_lang_invoke_MemberName::MN_IS_TYPE,
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112 REFERENCE_KIND_SHIFT = java_lang_invoke_MemberName::MN_REFERENCE_KIND_SHIFT,
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113 REFERENCE_KIND_MASK = java_lang_invoke_MemberName::MN_REFERENCE_KIND_MASK,
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114 SEARCH_SUPERCLASSES = java_lang_invoke_MemberName::MN_SEARCH_SUPERCLASSES,
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115 SEARCH_INTERFACES = java_lang_invoke_MemberName::MN_SEARCH_INTERFACES,
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116 ALL_KINDS = IS_METHOD | IS_CONSTRUCTOR | IS_FIELD | IS_TYPE
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117 };
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118
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119 Handle MethodHandles::new_MemberName(TRAPS) {
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120 Handle empty;
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121 instanceKlassHandle k(THREAD, SystemDictionary::MemberName_klass());
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122 if (!k->is_initialized()) k->initialize(CHECK_(empty));
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123 return Handle(THREAD, k->allocate_instance(THREAD));
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124 }
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125
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126 oop MethodHandles::init_MemberName(oop mname_oop, oop target_oop) {
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127 klassOop target_klass = target_oop->klass();
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128 if (target_klass == SystemDictionary::reflect_Field_klass()) {
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129 oop clazz = java_lang_reflect_Field::clazz(target_oop); // fd.field_holder()
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130 int slot = java_lang_reflect_Field::slot(target_oop); // fd.index()
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131 int mods = java_lang_reflect_Field::modifiers(target_oop);
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132 oop type = java_lang_reflect_Field::type(target_oop);
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133 oop name = java_lang_reflect_Field::name(target_oop);
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134 klassOop k = java_lang_Class::as_klassOop(clazz);
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135 intptr_t offset = instanceKlass::cast(k)->field_offset(slot);
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136 return init_field_MemberName(mname_oop, k, accessFlags_from(mods), type, name, offset);
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137 } else if (target_klass == SystemDictionary::reflect_Method_klass()) {
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138 oop clazz = java_lang_reflect_Method::clazz(target_oop);
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139 int slot = java_lang_reflect_Method::slot(target_oop);
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140 klassOop k = java_lang_Class::as_klassOop(clazz);
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141 if (k != NULL && Klass::cast(k)->oop_is_instance()) {
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142 methodOop m = instanceKlass::cast(k)->method_with_idnum(slot);
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143 return init_method_MemberName(mname_oop, m, true, k);
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144 }
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145 } else if (target_klass == SystemDictionary::reflect_Constructor_klass()) {
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146 oop clazz = java_lang_reflect_Constructor::clazz(target_oop);
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147 int slot = java_lang_reflect_Constructor::slot(target_oop);
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148 klassOop k = java_lang_Class::as_klassOop(clazz);
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149 if (k != NULL && Klass::cast(k)->oop_is_instance()) {
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150 methodOop m = instanceKlass::cast(k)->method_with_idnum(slot);
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151 return init_method_MemberName(mname_oop, m, false, k);
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152 }
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153 } else if (target_klass == SystemDictionary::MemberName_klass()) {
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154 // Note: This only works if the MemberName has already been resolved.
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155 oop clazz = java_lang_invoke_MemberName::clazz(target_oop);
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156 int flags = java_lang_invoke_MemberName::flags(target_oop);
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157 oop vmtarget = java_lang_invoke_MemberName::vmtarget(target_oop);
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158 intptr_t vmindex = java_lang_invoke_MemberName::vmindex(target_oop);
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159 klassOop k = java_lang_Class::as_klassOop(clazz);
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160 int ref_kind = (flags >> REFERENCE_KIND_SHIFT) & REFERENCE_KIND_MASK;
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161 if (vmtarget == NULL) return NULL; // not resolved
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162 if ((flags & IS_FIELD) != 0) {
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163 assert(vmtarget->is_klass(), "field vmtarget is klassOop");
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164 int basic_mods = (ref_kind_is_static(ref_kind) ? JVM_ACC_STATIC : 0);
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165 // FIXME: how does k (receiver_limit) contribute?
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166 return init_field_MemberName(mname_oop, klassOop(vmtarget), accessFlags_from(basic_mods), NULL, NULL, vmindex);
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167 } else if ((flags & (IS_METHOD | IS_CONSTRUCTOR)) != 0) {
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168 assert(vmtarget->is_method(), "method or constructor vmtarget is methodOop");
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169 return init_method_MemberName(mname_oop, methodOop(vmtarget), ref_kind_does_dispatch(ref_kind), k);
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170 } else {
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171 return NULL;
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172 }
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173 }
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174 return NULL;
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175 }
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176
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177 oop MethodHandles::init_method_MemberName(oop mname_oop, methodOop m, bool do_dispatch,
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178 klassOop receiver_limit) {
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179 AccessFlags mods = m->access_flags();
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180 int flags = (jushort)( mods.as_short() & JVM_RECOGNIZED_METHOD_MODIFIERS );
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181 int vmindex = methodOopDesc::nonvirtual_vtable_index; // implies never any dispatch
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182 klassOop mklass = m->method_holder();
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183 if (receiver_limit == NULL)
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184 receiver_limit = mklass;
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185 if (m->is_initializer()) {
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186 flags |= IS_CONSTRUCTOR | (JVM_REF_invokeSpecial << REFERENCE_KIND_SHIFT);
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187 } else if (mods.is_static()) {
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188 flags |= IS_METHOD | (JVM_REF_invokeStatic << REFERENCE_KIND_SHIFT);
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189 } else if (receiver_limit != mklass &&
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190 !Klass::cast(receiver_limit)->is_subtype_of(mklass)) {
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191 return NULL; // bad receiver limit
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192 } else if (Klass::cast(receiver_limit)->is_interface() &&
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193 Klass::cast(mklass)->is_interface()) {
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194 flags |= IS_METHOD | (JVM_REF_invokeInterface << REFERENCE_KIND_SHIFT);
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195 receiver_limit = mklass; // ignore passed-in limit; interfaces are interconvertible
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196 vmindex = klassItable::compute_itable_index(m);
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197 } else if (mklass != receiver_limit && Klass::cast(mklass)->is_interface()) {
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198 flags |= IS_METHOD | (JVM_REF_invokeVirtual << REFERENCE_KIND_SHIFT);
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199 // it is a miranda method, so m->vtable_index is not what we want
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200 ResourceMark rm;
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201 klassVtable* vt = instanceKlass::cast(receiver_limit)->vtable();
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202 vmindex = vt->index_of_miranda(m->name(), m->signature());
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203 } else if (!do_dispatch || m->can_be_statically_bound()) {
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204 flags |= IS_METHOD | (JVM_REF_invokeSpecial << REFERENCE_KIND_SHIFT);
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205 } else {
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206 flags |= IS_METHOD | (JVM_REF_invokeVirtual << REFERENCE_KIND_SHIFT);
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207 vmindex = m->vtable_index();
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208 }
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209
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210 java_lang_invoke_MemberName::set_flags(mname_oop, flags);
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211 java_lang_invoke_MemberName::set_vmtarget(mname_oop, m);
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212 java_lang_invoke_MemberName::set_vmindex(mname_oop, vmindex); // vtable/itable index
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213 java_lang_invoke_MemberName::set_clazz(mname_oop, Klass::cast(receiver_limit)->java_mirror());
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214 // Note: name and type can be lazily computed by resolve_MemberName,
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215 // if Java code needs them as resolved String and MethodType objects.
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216 // The clazz must be eagerly stored, because it provides a GC
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217 // root to help keep alive the methodOop.
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218 // If relevant, the vtable or itable value is stored as vmindex.
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219 // This is done eagerly, since it is readily available without
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220 // constructing any new objects.
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221 // TO DO: maybe intern mname_oop
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222 return mname_oop;
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223 }
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224
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225 Handle MethodHandles::init_method_MemberName(oop mname_oop, CallInfo& info, TRAPS) {
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226 Handle empty;
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227 if (info.resolved_appendix().not_null()) {
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228 // The resolved MemberName must not be accompanied by an appendix argument,
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229 // since there is no way to bind this value into the MemberName.
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230 // Caller is responsible to prevent this from happening.
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231 THROW_MSG_(vmSymbols::java_lang_InternalError(), "appendix", empty);
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232 }
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233 methodHandle m = info.resolved_method();
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234 KlassHandle defc = info.resolved_klass();
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235 int vmindex = -1;
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236 if (defc->is_interface() && Klass::cast(m->method_holder())->is_interface()) {
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237 // LinkResolver does not report itable indexes! (fix this?)
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238 vmindex = klassItable::compute_itable_index(m());
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239 } else if (m->can_be_statically_bound()) {
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240 // LinkResolver reports vtable index even for final methods!
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241 vmindex = methodOopDesc::nonvirtual_vtable_index;
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242 } else {
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243 vmindex = info.vtable_index();
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244 }
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245 oop res = init_method_MemberName(mname_oop, m(), (vmindex >= 0), defc());
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246 assert(res == NULL || (java_lang_invoke_MemberName::vmindex(res) == vmindex), "");
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247 return Handle(THREAD, res);
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248 }
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249
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250 oop MethodHandles::init_field_MemberName(oop mname_oop, klassOop field_holder,
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251 AccessFlags mods, oop type, oop name,
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252 intptr_t offset, bool is_setter) {
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253 int flags = (jushort)( mods.as_short() & JVM_RECOGNIZED_FIELD_MODIFIERS );
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254 flags |= IS_FIELD | ((mods.is_static() ? JVM_REF_getStatic : JVM_REF_getField) << REFERENCE_KIND_SHIFT);
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255 if (is_setter) flags += ((JVM_REF_putField - JVM_REF_getField) << REFERENCE_KIND_SHIFT);
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256 oop vmtarget = field_holder;
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257 int vmindex = offset; // determines the field uniquely when combined with static bit
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258 java_lang_invoke_MemberName::set_flags(mname_oop, flags);
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259 java_lang_invoke_MemberName::set_vmtarget(mname_oop, vmtarget);
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260 java_lang_invoke_MemberName::set_vmindex(mname_oop, vmindex);
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261 java_lang_invoke_MemberName::set_clazz(mname_oop, Klass::cast(field_holder)->java_mirror());
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262 if (name != NULL)
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263 java_lang_invoke_MemberName::set_name(mname_oop, name);
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264 if (type != NULL)
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265 java_lang_invoke_MemberName::set_type(mname_oop, type);
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266 // Note: name and type can be lazily computed by resolve_MemberName,
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267 // if Java code needs them as resolved String and Class objects.
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268 // Note that the incoming type oop might be pre-resolved (non-null).
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269 // The base clazz and field offset (vmindex) must be eagerly stored,
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270 // because they unambiguously identify the field.
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271 // Although the fieldDescriptor::_index would also identify the field,
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272 // we do not use it, because it is harder to decode.
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273 // TO DO: maybe intern mname_oop
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274 return mname_oop;
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275 }
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276
6266
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277 Handle MethodHandles::init_field_MemberName(oop mname_oop, FieldAccessInfo& info, TRAPS) {
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278 return Handle();
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279 #if 0
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280 KlassHandle field_holder = info.klass();
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281 intptr_t field_offset = info.field_offset();
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282 return init_field_MemberName(mname_oop, field_holder(),
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283 info.access_flags(),
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284 type, name,
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285 field_offset, false /*is_setter*/);
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286 #endif
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287 }
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288
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289
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290 // JVM 2.9 Special Methods:
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291 // A method is signature polymorphic if and only if all of the following conditions hold :
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292 // * It is declared in the java.lang.invoke.MethodHandle class.
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293 // * It has a single formal parameter of type Object[].
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294 // * It has a return type of Object.
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295 // * It has the ACC_VARARGS and ACC_NATIVE flags set.
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296 bool MethodHandles::is_method_handle_invoke_name(klassOop klass, Symbol* name) {
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297 if (klass == NULL)
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298 return false;
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299 // The following test will fail spuriously during bootstrap of MethodHandle itself:
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300 // if (klass != SystemDictionary::MethodHandle_klass())
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301 // Test the name instead:
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302 if (Klass::cast(klass)->name() != vmSymbols::java_lang_invoke_MethodHandle())
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303 return false;
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304 Symbol* poly_sig = vmSymbols::object_array_object_signature();
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305 methodOop m = instanceKlass::cast(klass)->find_method(name, poly_sig);
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306 if (m == NULL) return false;
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307 int required = JVM_ACC_NATIVE | JVM_ACC_VARARGS;
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308 int flags = m->access_flags().as_int();
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309 return (flags & required) == required;
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310 }
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311
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312
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313 Symbol* MethodHandles::signature_polymorphic_intrinsic_name(vmIntrinsics::ID iid) {
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314 assert(is_signature_polymorphic_intrinsic(iid), err_msg("iid=%d", iid));
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315 switch (iid) {
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316 case vmIntrinsics::_invokeBasic: return vmSymbols::invokeBasic_name();
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317 case vmIntrinsics::_linkToVirtual: return vmSymbols::linkToVirtual_name();
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318 case vmIntrinsics::_linkToStatic: return vmSymbols::linkToStatic_name();
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319 case vmIntrinsics::_linkToSpecial: return vmSymbols::linkToSpecial_name();
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320 case vmIntrinsics::_linkToInterface: return vmSymbols::linkToInterface_name();
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321 }
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322 assert(false, "");
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323 return 0;
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324 }
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325
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326 int MethodHandles::signature_polymorphic_intrinsic_ref_kind(vmIntrinsics::ID iid) {
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327 switch (iid) {
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328 case vmIntrinsics::_invokeBasic: return 0;
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329 case vmIntrinsics::_linkToVirtual: return JVM_REF_invokeVirtual;
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330 case vmIntrinsics::_linkToStatic: return JVM_REF_invokeStatic;
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331 case vmIntrinsics::_linkToSpecial: return JVM_REF_invokeSpecial;
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332 case vmIntrinsics::_linkToInterface: return JVM_REF_invokeInterface;
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333 }
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334 assert(false, err_msg("iid=%d", iid));
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335 return 0;
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336 }
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337
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338 vmIntrinsics::ID MethodHandles::signature_polymorphic_name_id(Symbol* name) {
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339 vmSymbols::SID name_id = vmSymbols::find_sid(name);
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340 switch (name_id) {
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341 // The ID _invokeGeneric stands for all non-static signature-polymorphic methods, except built-ins.
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342 case vmSymbols::VM_SYMBOL_ENUM_NAME(invoke_name): return vmIntrinsics::_invokeGeneric;
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343 // The only built-in non-static signature-polymorphic method is MethodHandle.invokeBasic:
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344 case vmSymbols::VM_SYMBOL_ENUM_NAME(invokeBasic_name): return vmIntrinsics::_invokeBasic;
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345
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346 // There is one static signature-polymorphic method for each JVM invocation mode.
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347 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToVirtual_name): return vmIntrinsics::_linkToVirtual;
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348 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToStatic_name): return vmIntrinsics::_linkToStatic;
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349 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToSpecial_name): return vmIntrinsics::_linkToSpecial;
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350 case vmSymbols::VM_SYMBOL_ENUM_NAME(linkToInterface_name): return vmIntrinsics::_linkToInterface;
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351 }
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352
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353 // Cover the case of invokeExact and any future variants of invokeFoo.
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354 klassOop mh_klass = SystemDictionary::well_known_klass(
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355 SystemDictionary::WK_KLASS_ENUM_NAME(MethodHandle_klass) );
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356 if (mh_klass != NULL && is_method_handle_invoke_name(mh_klass, name))
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357 return vmIntrinsics::_invokeGeneric;
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358
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359 // Note: The pseudo-intrinsic _compiledLambdaForm is never linked against.
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360 // Instead it is used to mark lambda forms bound to invokehandle or invokedynamic.
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361 return vmIntrinsics::_none;
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362 }
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363
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364 vmIntrinsics::ID MethodHandles::signature_polymorphic_name_id(klassOop klass, Symbol* name) {
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365 if (klass != NULL &&
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366 Klass::cast(klass)->name() == vmSymbols::java_lang_invoke_MethodHandle()) {
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367 vmIntrinsics::ID iid = signature_polymorphic_name_id(name);
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368 if (iid != vmIntrinsics::_none)
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369 return iid;
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370 if (is_method_handle_invoke_name(klass, name))
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371 return vmIntrinsics::_invokeGeneric;
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372 }
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373 return vmIntrinsics::_none;
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374 }
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375
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376
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377 // convert the external string or reflective type to an internal signature
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378 Symbol* MethodHandles::lookup_signature(oop type_str, bool intern_if_not_found, TRAPS) {
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379 if (java_lang_invoke_MethodType::is_instance(type_str)) {
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380 return java_lang_invoke_MethodType::as_signature(type_str, intern_if_not_found, CHECK_NULL);
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381 } else if (java_lang_Class::is_instance(type_str)) {
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382 return java_lang_Class::as_signature(type_str, false, CHECK_NULL);
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383 } else if (java_lang_String::is_instance(type_str)) {
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384 if (intern_if_not_found) {
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385 return java_lang_String::as_symbol(type_str, CHECK_NULL);
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386 } else {
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387 return java_lang_String::as_symbol_or_null(type_str);
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388 }
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389 } else {
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390 THROW_MSG_(vmSymbols::java_lang_InternalError(), "unrecognized type", NULL);
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391 }
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392 }
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393
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394 static const char OBJ_SIG[] = "Ljava/lang/Object;";
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395 enum { OBJ_SIG_LEN = 18 };
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396
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397 bool MethodHandles::is_basic_type_signature(Symbol* sig) {
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398 assert(vmSymbols::object_signature()->utf8_length() == (int)OBJ_SIG_LEN, "");
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399 assert(vmSymbols::object_signature()->equals(OBJ_SIG), "");
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400 const int len = sig->utf8_length();
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401 for (int i = 0; i < len; i++) {
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402 switch (sig->byte_at(i)) {
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403 case 'L':
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404 // only java/lang/Object is valid here
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405 if (sig->index_of_at(i, OBJ_SIG, OBJ_SIG_LEN) != i)
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406 return false;
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407 i += OBJ_SIG_LEN-1; //-1 because of i++ in loop
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408 continue;
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409 case '(': case ')': case 'V':
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410 case 'I': case 'J': case 'F': case 'D':
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411 continue;
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412 //case '[':
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413 //case 'Z': case 'B': case 'C': case 'S':
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414 default:
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415 return false;
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416 }
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417 }
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418 return true;
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419 }
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420
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421 Symbol* MethodHandles::lookup_basic_type_signature(Symbol* sig, bool keep_last_arg, TRAPS) {
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422 Symbol* bsig = NULL;
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423 if (sig == NULL) {
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424 return sig;
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425 } else if (is_basic_type_signature(sig)) {
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426 sig->increment_refcount();
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427 return sig; // that was easy
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diff changeset
428 } else if (sig->byte_at(0) != '(') {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
429 BasicType bt = char2type(sig->byte_at(0));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
430 if (is_subword_type(bt)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
431 bsig = vmSymbols::int_signature();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
432 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
433 assert(bt == T_OBJECT || bt == T_ARRAY, "is_basic_type_signature was false");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
434 bsig = vmSymbols::object_signature();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
435 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
436 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
437 ResourceMark rm;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
438 stringStream buffer(128);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
439 buffer.put('(');
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
440 int arg_pos = 0, keep_arg_pos = -1;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
441 if (keep_last_arg)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
442 keep_arg_pos = ArgumentCount(sig).size() - 1;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
443 for (SignatureStream ss(sig); !ss.is_done(); ss.next()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
444 BasicType bt = ss.type();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
445 size_t this_arg_pos = buffer.size();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
446 if (ss.at_return_type()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
447 buffer.put(')');
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
448 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
449 if (arg_pos == keep_arg_pos) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
450 buffer.write((char*) ss.raw_bytes(),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
451 (int) ss.raw_length());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
452 } else if (bt == T_OBJECT || bt == T_ARRAY) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
453 buffer.write(OBJ_SIG, OBJ_SIG_LEN);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
454 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
455 if (is_subword_type(bt))
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
456 bt = T_INT;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
457 buffer.put(type2char(bt));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
458 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
459 arg_pos++;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
460 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
461 const char* sigstr = buffer.base();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
462 int siglen = (int) buffer.size();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
463 bsig = SymbolTable::new_symbol(sigstr, siglen, THREAD);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
464 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
465 assert(is_basic_type_signature(bsig) ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
466 // detune assert in case the injected argument is not a basic type:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
467 keep_last_arg, "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
468 return bsig;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
469 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
470
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
471 void MethodHandles::print_as_basic_type_signature_on(outputStream* st,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
472 Symbol* sig,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
473 bool keep_arrays,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
474 bool keep_basic_names) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
475 st = st ? st : tty;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
476 int len = sig->utf8_length();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
477 int array = 0;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
478 bool prev_type = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
479 for (int i = 0; i < len; i++) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
480 char ch = sig->byte_at(i);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
481 switch (ch) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
482 case '(': case ')':
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
483 prev_type = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
484 st->put(ch);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
485 continue;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
486 case '[':
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
487 if (!keep_basic_names && keep_arrays)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
488 st->put(ch);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
489 array++;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
490 continue;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
491 case 'L':
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
492 {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
493 if (prev_type) st->put(',');
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
494 int start = i+1, slash = start;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
495 while (++i < len && (ch = sig->byte_at(i)) != ';') {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
496 if (ch == '/' || ch == '.' || ch == '$') slash = i+1;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
497 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
498 if (slash < i) start = slash;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
499 if (!keep_basic_names) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
500 st->put('L');
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
501 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
502 for (int j = start; j < i; j++)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
503 st->put(sig->byte_at(j));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
504 prev_type = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
505 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
506 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
507 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
508 default:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
509 {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
510 if (array && char2type(ch) != T_ILLEGAL && !keep_arrays) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
511 ch = '[';
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
512 array = 0;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
513 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
514 if (prev_type) st->put(',');
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
515 const char* n = NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
516 if (keep_basic_names)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
517 n = type2name(char2type(ch));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
518 if (n == NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
519 // unknown letter, or we don't want to know its name
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
520 st->put(ch);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
521 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
522 st->print(n);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
523 prev_type = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
524 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
525 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
526 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
527 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
528 // Switch break goes here to take care of array suffix:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
529 if (prev_type) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
530 while (array > 0) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
531 st->print("[]");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
532 --array;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
533 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
534 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
535 array = 0;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
536 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
537 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
538
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
539
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
540
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
541 static oop object_java_mirror() {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
542 return Klass::cast(SystemDictionary::Object_klass())->java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
543 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
544
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
545 static oop field_name_or_null(Symbol* s) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
546 if (s == NULL) return NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
547 return StringTable::lookup(s);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
548 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
549
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
550 static oop field_signature_type_or_null(Symbol* s) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
551 if (s == NULL) return NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
552 BasicType bt = FieldType::basic_type(s);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
553 if (is_java_primitive(bt)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
554 assert(s->utf8_length() == 1, "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
555 return java_lang_Class::primitive_mirror(bt);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
556 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
557 // Here are some more short cuts for common types.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
558 // They are optional, since reference types can be resolved lazily.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
559 if (bt == T_OBJECT) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
560 if (s == vmSymbols::object_signature()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
561 return object_java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
562 } else if (s == vmSymbols::class_signature()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
563 return Klass::cast(SystemDictionary::Class_klass())->java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
564 } else if (s == vmSymbols::string_signature()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
565 return Klass::cast(SystemDictionary::String_klass())->java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
566 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
567 int len = s->utf8_length();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
568 if (s->byte_at(0) == 'L' && s->byte_at(len-1) == ';') {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
569 TempNewSymbol cname = SymbolTable::probe((const char*)&s->bytes()[1], len-2);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
570 if (cname == NULL) return NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
571 klassOop wkk = SystemDictionary::find_well_known_klass(cname);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
572 if (wkk == NULL) return NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
573 return Klass::cast(wkk)->java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
574 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
575 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
576 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
577 return NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
578 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
579
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
580 // An unresolved member name is a mere symbolic reference.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
581 // Resolving it plants a vmtarget/vmindex in it,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
582 // which refers dirctly to JVM internals.
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
583 Handle MethodHandles::resolve_MemberName(Handle mname, TRAPS) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
584 Handle empty;
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
585 assert(java_lang_invoke_MemberName::is_instance(mname()), "");
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
586
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
587 if (java_lang_invoke_MemberName::vmtarget(mname()) != NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
588 // Already resolved.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
589 DEBUG_ONLY(int vmindex = java_lang_invoke_MemberName::vmindex(mname()));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
590 assert(vmindex >= methodOopDesc::nonvirtual_vtable_index, "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
591 return mname;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
592 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
593
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
594 Handle defc_oop(THREAD, java_lang_invoke_MemberName::clazz(mname()));
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
595 Handle name_str(THREAD, java_lang_invoke_MemberName::name( mname()));
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
596 Handle type_str(THREAD, java_lang_invoke_MemberName::type( mname()));
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
597 int flags = java_lang_invoke_MemberName::flags(mname());
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
598 int ref_kind = (flags >> REFERENCE_KIND_SHIFT) & REFERENCE_KIND_MASK;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
599 if (!ref_kind_is_valid(ref_kind)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
600 THROW_MSG_(vmSymbols::java_lang_InternalError(), "obsolete MemberName format", empty);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
601 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
602
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
603 DEBUG_ONLY(int old_vmindex);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
604 assert((old_vmindex = java_lang_invoke_MemberName::vmindex(mname())) == 0, "clean input");
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
605
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
606 if (defc_oop.is_null() || name_str.is_null() || type_str.is_null()) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
607 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), "nothing to resolve", empty);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
608 }
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
609
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
610 instanceKlassHandle defc;
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
611 {
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
612 klassOop defc_klassOop = java_lang_Class::as_klassOop(defc_oop());
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
613 if (defc_klassOop == NULL) return empty; // a primitive; no resolution possible
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
614 if (!Klass::cast(defc_klassOop)->oop_is_instance()) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
615 if (!Klass::cast(defc_klassOop)->oop_is_array()) return empty;
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
616 defc_klassOop = SystemDictionary::Object_klass();
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
617 }
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
618 defc = instanceKlassHandle(THREAD, defc_klassOop);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
619 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
620 if (defc.is_null()) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
621 THROW_MSG_(vmSymbols::java_lang_InternalError(), "primitive class", empty);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
622 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
623 defc->link_class(CHECK_(empty)); // possible safepoint
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
624
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
625 // convert the external string name to an internal symbol
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
626 TempNewSymbol name = java_lang_String::as_symbol_or_null(name_str());
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
627 if (name == NULL) return empty; // no such name
3781
d83ac25d0304 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 3757
diff changeset
628 if (name == vmSymbols::class_initializer_name())
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
629 return empty; // illegal name
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
630
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
631 vmIntrinsics::ID mh_invoke_id = vmIntrinsics::_none;
1508
2ffde6cfe049 6939196: method handle signatures off the boot class path get linkage errors
jrose
parents: 1507
diff changeset
632 if ((flags & ALL_KINDS) == IS_METHOD &&
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
633 (defc() == SystemDictionary::MethodHandle_klass()) &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
634 (ref_kind == JVM_REF_invokeVirtual ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
635 ref_kind == JVM_REF_invokeSpecial ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
636 // static invocation mode is required for _linkToVirtual, etc.:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
637 ref_kind == JVM_REF_invokeStatic)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
638 vmIntrinsics::ID iid = signature_polymorphic_name_id(name);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
639 if (iid != vmIntrinsics::_none &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
640 ((ref_kind == JVM_REF_invokeStatic) == is_signature_polymorphic_static(iid))) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
641 // Virtual methods invoke and invokeExact, plus internal invokers like _invokeBasic.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
642 // For a static reference it could an internal linkage routine like _linkToVirtual, etc.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
643 mh_invoke_id = iid;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
644 }
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
645 }
1508
2ffde6cfe049 6939196: method handle signatures off the boot class path get linkage errors
jrose
parents: 1507
diff changeset
646
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
647 // convert the external string or reflective type to an internal signature
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
648 TempNewSymbol type = lookup_signature(type_str(), (mh_invoke_id != vmIntrinsics::_none), CHECK_(empty));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
649 if (type == NULL) return empty; // no such signature exists in the VM
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
650
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
651 // Time to do the lookup.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
652 switch (flags & ALL_KINDS) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
653 case IS_METHOD:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
654 {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
655 CallInfo result;
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
656 bool do_dispatch = true; // default, neutral setting
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
657 {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
658 assert(!HAS_PENDING_EXCEPTION, "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
659 if (ref_kind == JVM_REF_invokeStatic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
660 //do_dispatch = false; // no need, since statics are never dispatched
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
661 LinkResolver::resolve_static_call(result,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
662 defc, name, type, KlassHandle(), false, false, THREAD);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
663 } else if (ref_kind == JVM_REF_invokeInterface) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
664 LinkResolver::resolve_interface_call(result, Handle(), defc,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
665 defc, name, type, KlassHandle(), false, false, THREAD);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
666 } else if (mh_invoke_id != vmIntrinsics::_none) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
667 assert(!is_signature_polymorphic_static(mh_invoke_id), "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
668 LinkResolver::resolve_handle_call(result,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
669 defc, name, type, KlassHandle(), THREAD);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
670 } else if (ref_kind == JVM_REF_invokeSpecial) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
671 do_dispatch = false; // force non-virtual linkage
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
672 LinkResolver::resolve_special_call(result,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
673 defc, name, type, KlassHandle(), false, THREAD);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
674 } else if (ref_kind == JVM_REF_invokeVirtual) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
675 LinkResolver::resolve_virtual_call(result, Handle(), defc,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
676 defc, name, type, KlassHandle(), false, false, THREAD);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
677 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
678 assert(false, err_msg("ref_kind=%d", ref_kind));
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
679 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
680 if (HAS_PENDING_EXCEPTION) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
681 return empty;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
682 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
683 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
684 return init_method_MemberName(mname(), result, THREAD);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
685 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
686 case IS_CONSTRUCTOR:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
687 {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
688 CallInfo result;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
689 {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
690 assert(!HAS_PENDING_EXCEPTION, "");
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
691 if (name == vmSymbols::object_initializer_name()) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
692 LinkResolver::resolve_special_call(result,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
693 defc, name, type, KlassHandle(), false, THREAD);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
694 } else {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
695 break; // will throw after end of switch
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
696 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
697 if (HAS_PENDING_EXCEPTION) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
698 return empty;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
699 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
700 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
701 assert(result.is_statically_bound(), "");
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
702 return init_method_MemberName(mname(), result, THREAD);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
703 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
704 case IS_FIELD:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
705 {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
706 // This is taken from LinkResolver::resolve_field, sans access checks.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
707 fieldDescriptor fd; // find_field initializes fd if found
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
708 KlassHandle sel_klass(THREAD, instanceKlass::cast(defc())->find_field(name, type, &fd));
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
709 // check if field exists; i.e., if a klass containing the field def has been selected
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
710 if (sel_klass.is_null()) return empty; // should not happen
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
711 oop type = field_signature_type_or_null(fd.signature());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
712 oop name = field_name_or_null(fd.name());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
713 bool is_setter = (ref_kind_is_valid(ref_kind) && ref_kind_is_setter(ref_kind));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
714 mname = Handle(THREAD,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
715 init_field_MemberName(mname(), sel_klass->as_klassOop(),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
716 fd.access_flags(), type, name, fd.offset(), is_setter));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
717 return mname;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
718 }
1508
2ffde6cfe049 6939196: method handle signatures off the boot class path get linkage errors
jrose
parents: 1507
diff changeset
719 default:
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
720 THROW_MSG_(vmSymbols::java_lang_InternalError(), "unrecognized MemberName format", empty);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
721 }
1508
2ffde6cfe049 6939196: method handle signatures off the boot class path get linkage errors
jrose
parents: 1507
diff changeset
722
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
723 return empty;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
724 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
725
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
726 // Conversely, a member name which is only initialized from JVM internals
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
727 // may have null defc, name, and type fields.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
728 // Resolving it plants a vmtarget/vmindex in it,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
729 // which refers directly to JVM internals.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
730 void MethodHandles::expand_MemberName(Handle mname, int suppress, TRAPS) {
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
731 assert(java_lang_invoke_MemberName::is_instance(mname()), "");
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
732 oop vmtarget = java_lang_invoke_MemberName::vmtarget(mname());
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
733 int vmindex = java_lang_invoke_MemberName::vmindex(mname());
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
734 if (vmtarget == NULL) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
735 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "nothing to expand");
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
736 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
737
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
738 bool have_defc = (java_lang_invoke_MemberName::clazz(mname()) != NULL);
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
739 bool have_name = (java_lang_invoke_MemberName::name(mname()) != NULL);
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
740 bool have_type = (java_lang_invoke_MemberName::type(mname()) != NULL);
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
741 int flags = java_lang_invoke_MemberName::flags(mname());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
742
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
743 if (suppress != 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
744 if (suppress & _suppress_defc) have_defc = true;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
745 if (suppress & _suppress_name) have_name = true;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
746 if (suppress & _suppress_type) have_type = true;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
747 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
748
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
749 if (have_defc && have_name && have_type) return; // nothing needed
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
750
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
751 switch (flags & ALL_KINDS) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
752 case IS_METHOD:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
753 case IS_CONSTRUCTOR:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
754 {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
755 assert(vmtarget->is_method(), "method or constructor vmtarget is methodOop");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
756 methodHandle m(THREAD, methodOop(vmtarget));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
757 DEBUG_ONLY(vmtarget = NULL); // safety
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
758 if (m.is_null()) break;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
759 if (!have_defc) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
760 klassOop defc = m->method_holder();
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
761 java_lang_invoke_MemberName::set_clazz(mname(), Klass::cast(defc)->java_mirror());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
762 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
763 if (!have_name) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
764 //not java_lang_String::create_from_symbol; let's intern member names
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
765 Handle name = StringTable::intern(m->name(), CHECK);
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
766 java_lang_invoke_MemberName::set_name(mname(), name());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
767 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
768 if (!have_type) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
769 Handle type = java_lang_String::create_from_symbol(m->signature(), CHECK);
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
770 java_lang_invoke_MemberName::set_type(mname(), type());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
771 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
772 return;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
773 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
774 case IS_FIELD:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
775 {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
776 // This is taken from LinkResolver::resolve_field, sans access checks.
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
777 assert(vmtarget->is_klass(), "field vmtarget is klassOop");
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
778 if (!Klass::cast((klassOop) vmtarget)->oop_is_instance()) break;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
779 instanceKlassHandle defc(THREAD, (klassOop) vmtarget);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
780 DEBUG_ONLY(vmtarget = NULL); // safety
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
781 bool is_static = ((flags & JVM_ACC_STATIC) != 0);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
782 fieldDescriptor fd; // find_field initializes fd if found
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
783 if (!defc->find_field_from_offset(vmindex, is_static, &fd))
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
784 break; // cannot expand
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
785 if (!have_defc) {
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
786 java_lang_invoke_MemberName::set_clazz(mname(), defc->java_mirror());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
787 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
788 if (!have_name) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
789 //not java_lang_String::create_from_symbol; let's intern member names
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
790 Handle name = StringTable::intern(fd.name(), CHECK);
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
791 java_lang_invoke_MemberName::set_name(mname(), name());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
792 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
793 if (!have_type) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
794 // If it is a primitive field type, don't mess with short strings like "I".
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
795 Handle type = field_signature_type_or_null(fd.signature());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
796 if (type.is_null()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
797 java_lang_String::create_from_symbol(fd.signature(), CHECK);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
798 }
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
799 java_lang_invoke_MemberName::set_type(mname(), type());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
800 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
801 return;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
802 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
803 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
804 THROW_MSG(vmSymbols::java_lang_InternalError(), "unrecognized MemberName format");
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
805 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
806
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
807 int MethodHandles::find_MemberNames(klassOop k,
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
808 Symbol* name, Symbol* sig,
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
809 int mflags, klassOop caller,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
810 int skip, objArrayOop results) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
811 DEBUG_ONLY(No_Safepoint_Verifier nsv);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
812 // this code contains no safepoints!
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
813
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
814 // %%% take caller into account!
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
815
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
816 if (k == NULL || !Klass::cast(k)->oop_is_instance()) return -1;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
817
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
818 int rfill = 0, rlimit = results->length(), rskip = skip;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
819 // overflow measurement:
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
820 int overflow = 0, overflow_limit = MAX2(1000, rlimit);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
821
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
822 int match_flags = mflags;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
823 bool search_superc = ((match_flags & SEARCH_SUPERCLASSES) != 0);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
824 bool search_intfc = ((match_flags & SEARCH_INTERFACES) != 0);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
825 bool local_only = !(search_superc | search_intfc);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
826 bool classes_only = false;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
827
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
828 if (name != NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
829 if (name->utf8_length() == 0) return 0; // a match is not possible
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
830 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
831 if (sig != NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
832 if (sig->utf8_length() == 0) return 0; // a match is not possible
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
833 if (sig->byte_at(0) == '(')
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
834 match_flags &= ~(IS_FIELD | IS_TYPE);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
835 else
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
836 match_flags &= ~(IS_CONSTRUCTOR | IS_METHOD);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
837 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
838
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
839 if ((match_flags & IS_TYPE) != 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
840 // NYI, and Core Reflection works quite well for this query
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
841 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
842
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
843 if ((match_flags & IS_FIELD) != 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
844 for (FieldStream st(k, local_only, !search_intfc); !st.eos(); st.next()) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
845 if (name != NULL && st.name() != name)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
846 continue;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
847 if (sig != NULL && st.signature() != sig)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
848 continue;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
849 // passed the filters
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
850 if (rskip > 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
851 --rskip;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
852 } else if (rfill < rlimit) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
853 oop result = results->obj_at(rfill++);
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
854 if (!java_lang_invoke_MemberName::is_instance(result))
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
855 return -99; // caller bug!
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
856 oop type = field_signature_type_or_null(st.signature());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
857 oop name = field_name_or_null(st.name());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
858 oop saved = MethodHandles::init_field_MemberName(result, st.klass()->as_klassOop(),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
859 st.access_flags(), type, name,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
860 st.offset());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
861 if (saved != result)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
862 results->obj_at_put(rfill-1, saved); // show saved instance to user
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
863 } else if (++overflow >= overflow_limit) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
864 match_flags = 0; break; // got tired of looking at overflow
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
865 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
866 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
867 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
868
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
869 if ((match_flags & (IS_METHOD | IS_CONSTRUCTOR)) != 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
870 // watch out for these guys:
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
871 Symbol* init_name = vmSymbols::object_initializer_name();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
872 Symbol* clinit_name = vmSymbols::class_initializer_name();
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
873 if (name == clinit_name) clinit_name = NULL; // hack for exposing <clinit>
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
874 bool negate_name_test = false;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
875 // fix name so that it captures the intention of IS_CONSTRUCTOR
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
876 if (!(match_flags & IS_METHOD)) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
877 // constructors only
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
878 if (name == NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
879 name = init_name;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
880 } else if (name != init_name) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
881 return 0; // no constructors of this method name
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
882 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
883 } else if (!(match_flags & IS_CONSTRUCTOR)) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
884 // methods only
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
885 if (name == NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
886 name = init_name;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
887 negate_name_test = true; // if we see the name, we *omit* the entry
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
888 } else if (name == init_name) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
889 return 0; // no methods of this constructor name
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
890 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
891 } else {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
892 // caller will accept either sort; no need to adjust name
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
893 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
894 for (MethodStream st(k, local_only, !search_intfc); !st.eos(); st.next()) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
895 methodOop m = st.method();
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
896 Symbol* m_name = m->name();
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
897 if (m_name == clinit_name)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
898 continue;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
899 if (name != NULL && ((m_name != name) ^ negate_name_test))
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
900 continue;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
901 if (sig != NULL && m->signature() != sig)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
902 continue;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
903 // passed the filters
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
904 if (rskip > 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
905 --rskip;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
906 } else if (rfill < rlimit) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
907 oop result = results->obj_at(rfill++);
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
908 if (!java_lang_invoke_MemberName::is_instance(result))
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
909 return -99; // caller bug!
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
910 oop saved = MethodHandles::init_method_MemberName(result, m, true, NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
911 if (saved != result)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
912 results->obj_at_put(rfill-1, saved); // show saved instance to user
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
913 } else if (++overflow >= overflow_limit) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
914 match_flags = 0; break; // got tired of looking at overflow
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
915 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
916 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
917 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
918
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
919 // return number of elements we at leasted wanted to initialize
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
920 return rfill + overflow;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
921 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
922
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
923 //
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
924 // Here are the native methods in java.lang.invoke.MethodHandleNatives
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
925 // They are the private interface between this JVM and the HotSpot-specific
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
926 // Java code that implements JSR 292 method handles.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
927 //
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
928 // Note: We use a JVM_ENTRY macro to define each of these, for this is the way
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
929 // that intrinsic (non-JNI) native methods are defined in HotSpot.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
930 //
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
931 JVM_ENTRY(jint, MHN_getConstant(JNIEnv *env, jobject igcls, jint which)) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
932 switch (which) {
3905
c26de9aef2ed 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 3837
diff changeset
933 case MethodHandles::GC_COUNT_GWT:
c26de9aef2ed 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 3837
diff changeset
934 #ifdef COMPILER2
c26de9aef2ed 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 3837
diff changeset
935 return true;
c26de9aef2ed 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 3837
diff changeset
936 #else
c26de9aef2ed 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 3837
diff changeset
937 return false;
c26de9aef2ed 7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents: 3837
diff changeset
938 #endif
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
939 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
940 return 0;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
941 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
942 JVM_END
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
943
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
944 #ifndef PRODUCT
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
945 #define EACH_NAMED_CON(template, requirement) \
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
946 template(MethodHandles,GC_COUNT_GWT) \
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
947 template(java_lang_invoke_MemberName,MN_IS_METHOD) \
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
948 template(java_lang_invoke_MemberName,MN_IS_CONSTRUCTOR) \
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
949 template(java_lang_invoke_MemberName,MN_IS_FIELD) \
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
950 template(java_lang_invoke_MemberName,MN_IS_TYPE) \
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
951 template(java_lang_invoke_MemberName,MN_SEARCH_SUPERCLASSES) \
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
952 template(java_lang_invoke_MemberName,MN_SEARCH_INTERFACES) \
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
953 template(java_lang_invoke_MemberName,MN_REFERENCE_KIND_SHIFT) \
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
954 template(java_lang_invoke_MemberName,MN_REFERENCE_KIND_MASK) \
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
955 template(MethodHandles,GC_LAMBDA_SUPPORT) \
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
956 /*end*/
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
957
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
958 #define IGNORE_REQ(req_expr) /* req_expr */
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
959 #define ONE_PLUS(scope,value) 1+
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
960 static const int con_value_count = EACH_NAMED_CON(ONE_PLUS, IGNORE_REQ) 0;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
961 #define VALUE_COMMA(scope,value) scope::value,
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
962 static const int con_values[con_value_count+1] = { EACH_NAMED_CON(VALUE_COMMA, IGNORE_REQ) 0 };
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
963 #define STRING_NULL(scope,value) #value "\0"
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
964 static const char con_names[] = { EACH_NAMED_CON(STRING_NULL, IGNORE_REQ) };
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
965
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
966 static bool advertise_con_value(int which) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
967 if (which < 0) return false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
968 bool ok = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
969 int count = 0;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
970 #define INC_COUNT(scope,value) \
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
971 ++count;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
972 #define CHECK_REQ(req_expr) \
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
973 if (which < count) return ok; \
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
974 ok = (req_expr);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
975 EACH_NAMED_CON(INC_COUNT, CHECK_REQ);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
976 #undef INC_COUNT
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
977 #undef CHECK_REQ
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
978 assert(count == con_value_count, "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
979 if (which < count) return ok;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
980 return false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
981 }
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
982
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
983 #undef ONE_PLUS
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
984 #undef VALUE_COMMA
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
985 #undef STRING_NULL
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
986 #undef EACH_NAMED_CON
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
987 #endif // PRODUCT
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
988
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
989 JVM_ENTRY(jint, MHN_getNamedCon(JNIEnv *env, jobject igcls, jint which, jobjectArray box_jh)) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
990 #ifndef PRODUCT
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
991 if (advertise_con_value(which)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
992 assert(which >= 0 && which < con_value_count, "");
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
993 int con = con_values[which];
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
994 objArrayHandle box(THREAD, (objArrayOop) JNIHandles::resolve(box_jh));
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
995 if (box.not_null() && box->klass() == Universe::objectArrayKlassObj() && box->length() > 0) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
996 const char* str = &con_names[0];
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
997 for (int i = 0; i < which; i++)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
998 str += strlen(str) + 1; // skip name and null
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
999 oop name = java_lang_String::create_oop_from_str(str, CHECK_0); // possible safepoint
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1000 box->obj_at_put(0, name);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1001 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1002 return con;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1003 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1004 #endif
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1005 return 0;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1006 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1007 JVM_END
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1008
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1009 // void init(MemberName self, AccessibleObject ref)
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
1010 JVM_ENTRY(void, MHN_init_Mem(JNIEnv *env, jobject igcls, jobject mname_jh, jobject target_jh)) {
3740
5ac411b3b8fc 7047961: JSR 292 MethodHandleWalk swap args doesn't handle T_LONG and T_DOUBLE properly
never
parents: 3389
diff changeset
1011 if (mname_jh == NULL) { THROW_MSG(vmSymbols::java_lang_InternalError(), "mname is null"); }
5ac411b3b8fc 7047961: JSR 292 MethodHandleWalk swap args doesn't handle T_LONG and T_DOUBLE properly
never
parents: 3389
diff changeset
1012 if (target_jh == NULL) { THROW_MSG(vmSymbols::java_lang_InternalError(), "target is null"); }
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1013 Handle mname(THREAD, JNIHandles::resolve_non_null(mname_jh));
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1014 oop target_oop = JNIHandles::resolve_non_null(target_jh);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1015 MethodHandles::init_MemberName(mname(), target_oop);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1016 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1017 JVM_END
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1018
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1019 // void expand(MemberName self)
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
1020 JVM_ENTRY(void, MHN_expand_Mem(JNIEnv *env, jobject igcls, jobject mname_jh)) {
3740
5ac411b3b8fc 7047961: JSR 292 MethodHandleWalk swap args doesn't handle T_LONG and T_DOUBLE properly
never
parents: 3389
diff changeset
1021 if (mname_jh == NULL) { THROW_MSG(vmSymbols::java_lang_InternalError(), "mname is null"); }
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1022 Handle mname(THREAD, JNIHandles::resolve_non_null(mname_jh));
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1023 MethodHandles::expand_MemberName(mname, 0, CHECK);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1024 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1025 JVM_END
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1026
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1027 // void resolve(MemberName self, Class<?> caller)
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1028 JVM_ENTRY(jobject, MHN_resolve_Mem(JNIEnv *env, jobject igcls, jobject mname_jh, jclass caller_jh)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1029 if (mname_jh == NULL) { THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "mname is null"); }
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1030 Handle mname(THREAD, JNIHandles::resolve_non_null(mname_jh));
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1031
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1032 // The trusted Java code that calls this method should already have performed
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1033 // access checks on behalf of the given caller. But, we can verify this.
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1034 if (VerifyMethodHandles && caller_jh != NULL &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1035 java_lang_invoke_MemberName::clazz(mname()) != NULL) {
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
1036 klassOop reference_klass = java_lang_Class::as_klassOop(java_lang_invoke_MemberName::clazz(mname()));
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1037 if (reference_klass != NULL) {
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1038 // Emulate LinkResolver::check_klass_accessability.
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1039 klassOop caller = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(caller_jh));
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1040 if (!Reflection::verify_class_access(caller,
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1041 reference_klass,
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1042 true)) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1043 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), Klass::cast(reference_klass)->external_name());
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1044 }
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1045 }
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1046 }
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1299
diff changeset
1047
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1048 Handle resolved = MethodHandles::resolve_MemberName(mname, CHECK_NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1049 if (resolved.is_null()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1050 int flags = java_lang_invoke_MemberName::flags(mname());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1051 int ref_kind = (flags >> REFERENCE_KIND_SHIFT) & REFERENCE_KIND_MASK;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1052 if (!MethodHandles::ref_kind_is_valid(ref_kind)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1053 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "obsolete MemberName format");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1054 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1055 if ((flags & ALL_KINDS) == IS_FIELD) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1056 THROW_MSG_NULL(vmSymbols::java_lang_NoSuchMethodError(), "field resolution failed");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1057 } else if ((flags & ALL_KINDS) == IS_METHOD ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1058 (flags & ALL_KINDS) == IS_CONSTRUCTOR) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1059 THROW_MSG_NULL(vmSymbols::java_lang_NoSuchFieldError(), "method resolution failed");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1060 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1061 THROW_MSG_NULL(vmSymbols::java_lang_LinkageError(), "resolution failed");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1062 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1063 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1064
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1065 return JNIHandles::make_local(THREAD, resolved());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1066 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1067 JVM_END
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1068
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1069 static jlong find_member_field_offset(oop mname, bool must_be_static, TRAPS) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1070 if (mname == NULL ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1071 java_lang_invoke_MemberName::vmtarget(mname) == NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1072 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "mname not resolved");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1073 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1074 int flags = java_lang_invoke_MemberName::flags(mname);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1075 if ((flags & IS_FIELD) != 0 &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1076 (must_be_static
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1077 ? (flags & JVM_ACC_STATIC) != 0
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1078 : (flags & JVM_ACC_STATIC) == 0)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1079 int vmindex = java_lang_invoke_MemberName::vmindex(mname);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1080 return (jlong) vmindex;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1081 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1082 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1083 const char* msg = (must_be_static ? "static field required" : "non-static field required");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1084 THROW_MSG_0(vmSymbols::java_lang_InternalError(), msg);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1085 return 0;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1086 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1087
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1088 JVM_ENTRY(jlong, MHN_objectFieldOffset(JNIEnv *env, jobject igcls, jobject mname_jh)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1089 return find_member_field_offset(JNIHandles::resolve(mname_jh), false, THREAD);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1090 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1091 JVM_END
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1092
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1093 JVM_ENTRY(jlong, MHN_staticFieldOffset(JNIEnv *env, jobject igcls, jobject mname_jh)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1094 return find_member_field_offset(JNIHandles::resolve(mname_jh), true, THREAD);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1095 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1096 JVM_END
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1097
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1098 JVM_ENTRY(jobject, MHN_staticFieldBase(JNIEnv *env, jobject igcls, jobject mname_jh)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1099 // use the other function to perform sanity checks:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1100 jlong ignore = find_member_field_offset(JNIHandles::resolve(mname_jh), true, CHECK_NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1101 oop clazz = java_lang_invoke_MemberName::clazz(JNIHandles::resolve_non_null(mname_jh));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1102 return JNIHandles::make_local(THREAD, clazz);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1103 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1104 JVM_END
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1105
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1106 JVM_ENTRY(jobject, MHN_getMemberVMInfo(JNIEnv *env, jobject igcls, jobject mname_jh)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1107 if (mname_jh == NULL) return NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1108 Handle mname(THREAD, JNIHandles::resolve_non_null(mname_jh));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1109 intptr_t vmindex = java_lang_invoke_MemberName::vmindex(mname());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1110 Handle vmtarget = java_lang_invoke_MemberName::vmtarget(mname());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1111 objArrayHandle result = oopFactory::new_objArray(SystemDictionary::Object_klass(), 2, CHECK_NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1112 jvalue vmindex_value; vmindex_value.j = (long)vmindex;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1113 oop x = java_lang_boxing_object::create(T_LONG, &vmindex_value, CHECK_NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1114 result->obj_at_put(0, x);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1115 x = NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1116 if (vmtarget.is_null() || vmtarget->is_instance()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1117 x = vmtarget();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1118 } else if (vmtarget->is_klass()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1119 x = Klass::cast((klassOop) vmtarget())->java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1120 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1121 Handle mname2 = MethodHandles::new_MemberName(CHECK_NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1122 if (vmtarget->is_method())
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1123 x = MethodHandles::init_method_MemberName(mname2(), methodOop(vmtarget()), false, NULL);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1124 else
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1125 x = MethodHandles::init_MemberName(mname2(), vmtarget());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1126 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1127 result->obj_at_put(1, x);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1128 return JNIHandles::make_local(env, result());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1129 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1130 JVM_END
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1131
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1132
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1133
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1134 // static native int getMembers(Class<?> defc, String matchName, String matchSig,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1135 // int matchFlags, Class<?> caller, int skip, MemberName[] results);
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2356
diff changeset
1136 JVM_ENTRY(jint, MHN_getMembers(JNIEnv *env, jobject igcls,
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1137 jclass clazz_jh, jstring name_jh, jstring sig_jh,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1138 int mflags, jclass caller_jh, jint skip, jobjectArray results_jh)) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1139 if (clazz_jh == NULL || results_jh == NULL) return -1;
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1140 KlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz_jh)));
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1141
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1142 objArrayHandle results(THREAD, (objArrayOop) JNIHandles::resolve(results_jh));
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1143 if (results.is_null() || !results->is_objArray()) return -1;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1144
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
1145 TempNewSymbol name = NULL;
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2116
diff changeset
1146 TempNewSymbol sig = NULL;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1147 if (name_jh != NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1148 name = java_lang_String::as_symbol_or_null(JNIHandles::resolve_non_null(name_jh));
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1149 if (name == NULL) return 0; // a match is not possible
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1150 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1151 if (sig_jh != NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1152 sig = java_lang_String::as_symbol_or_null(JNIHandles::resolve_non_null(sig_jh));
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1153 if (sig == NULL) return 0; // a match is not possible
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1154 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1155
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1156 KlassHandle caller;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1157 if (caller_jh != NULL) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1158 oop caller_oop = JNIHandles::resolve_non_null(caller_jh);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1159 if (!java_lang_Class::is_instance(caller_oop)) return -1;
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1160 caller = KlassHandle(THREAD, java_lang_Class::as_klassOop(caller_oop));
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1161 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1162
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1163 if (name != NULL && sig != NULL && results.not_null()) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1164 // try a direct resolve
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1165 // %%% TO DO
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1166 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1167
3274
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1168 int res = MethodHandles::find_MemberNames(k(), name, sig, mflags,
2a23b1b5a0a8 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 2478
diff changeset
1169 caller(), skip, results());
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1170 // TO DO: expand at least some of the MemberNames, to avoid massive callbacks
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1171 return res;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1172 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1173 JVM_END
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1174
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1175 JVM_ENTRY(void, MHN_setCallSiteTargetNormal(JNIEnv* env, jobject igcls, jobject call_site_jh, jobject target_jh)) {
4043
12d38ffcba2a 7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
twisti
parents: 3938
diff changeset
1176 Handle call_site(THREAD, JNIHandles::resolve_non_null(call_site_jh));
12d38ffcba2a 7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
twisti
parents: 3938
diff changeset
1177 Handle target (THREAD, JNIHandles::resolve(target_jh));
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1178 {
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1179 // Walk all nmethods depending on this call site.
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1180 MutexLocker mu(Compile_lock, thread);
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1181 Universe::flush_dependents_on(call_site, target);
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1182 }
4043
12d38ffcba2a 7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
twisti
parents: 3938
diff changeset
1183 java_lang_invoke_CallSite::set_target(call_site(), target());
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1184 }
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1185 JVM_END
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1186
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1187 JVM_ENTRY(void, MHN_setCallSiteTargetVolatile(JNIEnv* env, jobject igcls, jobject call_site_jh, jobject target_jh)) {
4043
12d38ffcba2a 7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
twisti
parents: 3938
diff changeset
1188 Handle call_site(THREAD, JNIHandles::resolve_non_null(call_site_jh));
12d38ffcba2a 7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
twisti
parents: 3938
diff changeset
1189 Handle target (THREAD, JNIHandles::resolve(target_jh));
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1190 {
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1191 // Walk all nmethods depending on this call site.
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1192 MutexLocker mu(Compile_lock, thread);
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1193 Universe::flush_dependents_on(call_site, target);
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1194 }
4043
12d38ffcba2a 7094138: JSR 292: JRuby junit test fails in CallSite.setTargetNormal: obj->is_oop() failed: sanity check
twisti
parents: 3938
diff changeset
1195 java_lang_invoke_CallSite::set_target_volatile(call_site(), target());
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1196 }
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1197 JVM_END
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1198
3387
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1199 JVM_ENTRY(jobject, MH_invoke_UOE(JNIEnv *env, jobject igmh, jobjectArray igargs)) {
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1200 TempNewSymbol UOE_name = SymbolTable::new_symbol("java/lang/UnsupportedOperationException", CHECK_NULL);
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1201 THROW_MSG_NULL(UOE_name, "MethodHandle.invoke cannot be invoked reflectively");
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1202 return NULL;
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1203 }
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1204 JVM_END
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1205
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1206 JVM_ENTRY(jobject, MH_invokeExact_UOE(JNIEnv *env, jobject igmh, jobjectArray igargs)) {
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1207 TempNewSymbol UOE_name = SymbolTable::new_symbol("java/lang/UnsupportedOperationException", CHECK_NULL);
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1208 THROW_MSG_NULL(UOE_name, "MethodHandle.invokeExact cannot be invoked reflectively");
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1209 return NULL;
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1210 }
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1211 JVM_END
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1212
726
be93aad57795 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 710
diff changeset
1213
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1214 /// JVM_RegisterMethodHandleMethods
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1215
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1216 #undef CS // Solaris builds complain
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1217
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1218 #define LANG "Ljava/lang/"
2460
ed69575596ac 6981791: remove experimental code for JSR 292
jrose
parents: 2416
diff changeset
1219 #define JLINV "Ljava/lang/invoke/"
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1220
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1221 #define OBJ LANG"Object;"
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1222 #define CLS LANG"Class;"
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1223 #define STRG LANG"String;"
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1224 #define CS JLINV"CallSite;"
2460
ed69575596ac 6981791: remove experimental code for JSR 292
jrose
parents: 2416
diff changeset
1225 #define MT JLINV"MethodType;"
ed69575596ac 6981791: remove experimental code for JSR 292
jrose
parents: 2416
diff changeset
1226 #define MH JLINV"MethodHandle;"
ed69575596ac 6981791: remove experimental code for JSR 292
jrose
parents: 2416
diff changeset
1227 #define MEM JLINV"MemberName;"
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1228
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1229 #define CC (char*) /*cast a literal from (const char*)*/
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1230 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1231
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1232 // These are the native methods on java.lang.invoke.MethodHandleNatives.
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1233 static JNINativeMethod required_methods_JDK8[] = {
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1234 {CC"init", CC"("MEM""OBJ")V", FN_PTR(MHN_init_Mem)},
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1235 {CC"expand", CC"("MEM")V", FN_PTR(MHN_expand_Mem)},
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1236 {CC"resolve", CC"("MEM""CLS")"MEM, FN_PTR(MHN_resolve_Mem)},
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1237 {CC"getConstant", CC"(I)I", FN_PTR(MHN_getConstant)},
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1238 // static native int getNamedCon(int which, Object[] name)
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1239 {CC"getNamedCon", CC"(I["OBJ")I", FN_PTR(MHN_getNamedCon)},
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1240 // static native int getMembers(Class<?> defc, String matchName, String matchSig,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1241 // int matchFlags, Class<?> caller, int skip, MemberName[] results);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1242 {CC"getMembers", CC"("CLS""STRG""STRG"I"CLS"I["MEM")I", FN_PTR(MHN_getMembers)},
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1243 {CC"objectFieldOffset", CC"("MEM")J", FN_PTR(MHN_objectFieldOffset)},
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1244 {CC"setCallSiteTargetNormal", CC"("CS""MH")V", FN_PTR(MHN_setCallSiteTargetNormal)},
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1245 {CC"setCallSiteTargetVolatile", CC"("CS""MH")V", FN_PTR(MHN_setCallSiteTargetVolatile)},
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1246 {CC"staticFieldOffset", CC"("MEM")J", FN_PTR(MHN_staticFieldOffset)},
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1247 {CC"staticFieldBase", CC"("MEM")"OBJ, FN_PTR(MHN_staticFieldBase)},
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1248 {CC"getMemberVMInfo", CC"("MEM")"OBJ, FN_PTR(MHN_getMemberVMInfo)}
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1249 };
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1250
3387
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1251 static JNINativeMethod invoke_methods[] = {
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1252 {CC"invoke", CC"(["OBJ")"OBJ, FN_PTR(MH_invoke_UOE)},
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1253 {CC"invokeExact", CC"(["OBJ")"OBJ, FN_PTR(MH_invokeExact_UOE)}
3387
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1254 };
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1255
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1256 // This one function is exported, used by NativeLookup.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1257
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1258 JVM_ENTRY(void, JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass MHN_class)) {
2416
38fea01eb669 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 2357
diff changeset
1259 if (!EnableInvokeDynamic) {
38fea01eb669 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 2357
diff changeset
1260 warning("JSR 292 is disabled in this JVM. Use -XX:+UnlockDiagnosticVMOptions -XX:+EnableInvokeDynamic to enable.");
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1261 return; // bind nothing
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1262 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1263
3932
b0efc7ee3b31 7085860: JSR 292: implement CallSite.setTargetNormal and setTargetVolatile as native methods
twisti
parents: 3905
diff changeset
1264 assert(!MethodHandles::enabled(), "must not be enabled");
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1265 bool enable_MH = true;
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1266
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1267 jclass MH_class = NULL;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1268 if (SystemDictionary::MethodHandle_klass() == NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1269 enable_MH = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1270 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1271 oop mirror = Klass::cast(SystemDictionary::MethodHandle_klass())->java_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1272 MH_class = (jclass) JNIHandles::make_local(env, mirror);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1273 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1274
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1275 int status;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1276
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1277 if (enable_MH) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1278 ThreadToNativeFromVM ttnfv(thread);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1279
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1280 status = env->RegisterNatives(MHN_class, required_methods_JDK8, sizeof(required_methods_JDK8)/sizeof(JNINativeMethod));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1281 if (status == JNI_OK && !env->ExceptionOccurred()) {
3387
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1282 status = env->RegisterNatives(MH_class, invoke_methods, sizeof(invoke_methods)/sizeof(JNINativeMethod));
2848194272f4 7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
jrose
parents: 3371
diff changeset
1283 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1284 if (status != JNI_OK || env->ExceptionOccurred()) {
2460
ed69575596ac 6981791: remove experimental code for JSR 292
jrose
parents: 2416
diff changeset
1285 warning("JSR 292 method handle code is mismatched to this JVM. Disabling support.");
ed69575596ac 6981791: remove experimental code for JSR 292
jrose
parents: 2416
diff changeset
1286 enable_MH = false;
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1287 env->ExceptionClear();
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1288 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1289 }
726
be93aad57795 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 710
diff changeset
1290
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1291 if (TraceInvokeDynamic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6224
diff changeset
1292 tty->print_cr("MethodHandle support loaded (using LambdaForms)");
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1293 }
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1294
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1295 if (enable_MH) {
2116
d810e9a3fc33 7010180: JSR 292 InvokeDynamicPrintArgs fails with: assert(_adapter == NULL) failed: init'd to NULL
twisti
parents: 2088
diff changeset
1296 MethodHandles::generate_adapters();
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1297 MethodHandles::set_enabled(true);
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 726
diff changeset
1298 }
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1299 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
1300 JVM_END