Mercurial > hg > graal-jvmci-8
annotate src/share/vm/interpreter/linkResolver.cpp @ 18046:096a7e12d63f
8036805: Correct linker method lookup.
Summary: Correct handling of array of primitive type qualifiers during field and method resolution.
Reviewed-by: acorn, hseigel, ahgross
author | lfoltan |
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date | Tue, 15 Apr 2014 16:17:20 -0400 |
parents | 5832cdaf89c6 |
children | 54bc75c144b0 |
rev | line source |
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0 | 1 /* |
18046 | 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
6934 | 26 #include "classfile/defaultMethods.hpp" |
1972 | 27 #include "classfile/systemDictionary.hpp" |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "compiler/compileBroker.hpp" | |
30 #include "gc_interface/collectedHeap.inline.hpp" | |
31 #include "interpreter/bytecode.hpp" | |
32 #include "interpreter/interpreterRuntime.hpp" | |
33 #include "interpreter/linkResolver.hpp" | |
34 #include "memory/resourceArea.hpp" | |
35 #include "memory/universe.inline.hpp" | |
36 #include "oops/instanceKlass.hpp" | |
37 #include "oops/objArrayOop.hpp" | |
38 #include "prims/methodHandles.hpp" | |
39 #include "prims/nativeLookup.hpp" | |
40 #include "runtime/compilationPolicy.hpp" | |
41 #include "runtime/fieldDescriptor.hpp" | |
42 #include "runtime/frame.inline.hpp" | |
43 #include "runtime/handles.inline.hpp" | |
44 #include "runtime/reflection.hpp" | |
45 #include "runtime/signature.hpp" | |
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46 #include "runtime/thread.inline.hpp" |
1972 | 47 #include "runtime/vmThread.hpp" |
0 | 48 |
49 | |
50 //------------------------------------------------------------------------------------------------------------------------ | |
51 // Implementation of CallInfo | |
52 | |
53 | |
54 void CallInfo::set_static(KlassHandle resolved_klass, methodHandle resolved_method, TRAPS) { | |
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55 int vtable_index = Method::nonvirtual_vtable_index; |
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56 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, CallInfo::direct_call, vtable_index, CHECK); |
0 | 57 } |
58 | |
59 | |
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60 void CallInfo::set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int itable_index, TRAPS) { |
0 | 61 // This is only called for interface methods. If the resolved_method |
62 // comes from java/lang/Object, it can be the subject of a virtual call, so | |
63 // we should pick the vtable index from the resolved method. | |
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64 // In that case, the caller must call set_virtual instead of set_interface. |
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65 assert(resolved_method->method_holder()->is_interface(), ""); |
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66 assert(itable_index == resolved_method()->itable_index(), ""); |
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67 set_common(resolved_klass, selected_klass, resolved_method, selected_method, CallInfo::itable_call, itable_index, CHECK); |
0 | 68 } |
69 | |
70 void CallInfo::set_virtual(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS) { | |
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71 assert(vtable_index >= 0 || vtable_index == Method::nonvirtual_vtable_index, "valid index"); |
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72 assert(vtable_index < 0 || !resolved_method->has_vtable_index() || vtable_index == resolved_method->vtable_index(), ""); |
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73 CallKind kind = (vtable_index >= 0 && !resolved_method->can_be_statically_bound() ? CallInfo::vtable_call : CallInfo::direct_call); |
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74 set_common(resolved_klass, selected_klass, resolved_method, selected_method, kind, vtable_index, CHECK); |
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75 assert(!resolved_method->is_compiled_lambda_form(), "these must be handled via an invokehandle call"); |
0 | 76 } |
77 | |
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78 void CallInfo::set_handle(methodHandle resolved_method, Handle resolved_appendix, Handle resolved_method_type, TRAPS) { |
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79 if (resolved_method.is_null()) { |
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80 THROW_MSG(vmSymbols::java_lang_InternalError(), "resolved method is null"); |
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81 } |
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82 KlassHandle resolved_klass = SystemDictionary::MethodHandle_klass(); |
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83 assert(resolved_method->intrinsic_id() == vmIntrinsics::_invokeBasic || |
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84 resolved_method->is_compiled_lambda_form(), |
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85 "linkMethod must return one of these"); |
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86 int vtable_index = Method::nonvirtual_vtable_index; |
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87 assert(!resolved_method->has_vtable_index(), ""); |
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88 set_common(resolved_klass, resolved_klass, resolved_method, resolved_method, CallInfo::direct_call, vtable_index, CHECK); |
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89 _resolved_appendix = resolved_appendix; |
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90 _resolved_method_type = resolved_method_type; |
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91 } |
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92 |
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93 void CallInfo::set_common(KlassHandle resolved_klass, |
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94 KlassHandle selected_klass, |
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95 methodHandle resolved_method, |
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96 methodHandle selected_method, |
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97 CallKind kind, |
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98 int index, |
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99 TRAPS) { |
0 | 100 assert(resolved_method->signature() == selected_method->signature(), "signatures must correspond"); |
101 _resolved_klass = resolved_klass; | |
102 _selected_klass = selected_klass; | |
103 _resolved_method = resolved_method; | |
104 _selected_method = selected_method; | |
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105 _call_kind = kind; |
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106 _call_index = index; |
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107 _resolved_appendix = Handle(); |
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108 DEBUG_ONLY(verify()); // verify before making side effects |
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109 |
1783 | 110 if (CompilationPolicy::must_be_compiled(selected_method)) { |
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111 // This path is unusual, mostly used by the '-Xcomp' stress test mode. |
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112 |
1783 | 113 // Note: with several active threads, the must_be_compiled may be true |
114 // while can_be_compiled is false; remove assert | |
115 // assert(CompilationPolicy::can_be_compiled(selected_method), "cannot compile"); | |
0 | 116 if (THREAD->is_Compiler_thread()) { |
117 // don't force compilation, resolve was on behalf of compiler | |
118 return; | |
119 } | |
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120 if (selected_method->method_holder()->is_not_initialized()) { |
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121 // 'is_not_initialized' means not only '!is_initialized', but also that |
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122 // initialization has not been started yet ('!being_initialized') |
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123 // Do not force compilation of methods in uninitialized classes. |
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124 // Note that doing this would throw an assert later, |
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125 // in CompileBroker::compile_method. |
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126 // We sometimes use the link resolver to do reflective lookups |
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127 // even before classes are initialized. |
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128 return; |
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129 } |
0 | 130 CompileBroker::compile_method(selected_method, InvocationEntryBci, |
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131 CompilationPolicy::policy()->initial_compile_level(), |
1783 | 132 methodHandle(), 0, "must_be_compiled", CHECK); |
0 | 133 } |
134 } | |
135 | |
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136 // utility query for unreflecting a method |
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137 CallInfo::CallInfo(Method* resolved_method, Klass* resolved_klass) { |
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138 Klass* resolved_method_holder = resolved_method->method_holder(); |
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139 if (resolved_klass == NULL) { // 2nd argument defaults to holder of 1st |
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140 resolved_klass = resolved_method_holder; |
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141 } |
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142 _resolved_klass = resolved_klass; |
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143 _selected_klass = resolved_klass; |
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144 _resolved_method = resolved_method; |
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145 _selected_method = resolved_method; |
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146 // classify: |
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147 CallKind kind = CallInfo::unknown_kind; |
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148 int index = resolved_method->vtable_index(); |
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149 if (resolved_method->can_be_statically_bound()) { |
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150 kind = CallInfo::direct_call; |
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151 } else if (!resolved_method_holder->is_interface()) { |
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152 // Could be an Object method inherited into an interface, but still a vtable call. |
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153 kind = CallInfo::vtable_call; |
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154 } else if (!resolved_klass->is_interface()) { |
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155 // A default or miranda method. Compute the vtable index. |
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156 ResourceMark rm; |
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157 klassVtable* vt = InstanceKlass::cast(resolved_klass)->vtable(); |
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158 index = LinkResolver::vtable_index_of_interface_method(resolved_klass, |
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159 resolved_method); |
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160 assert(index >= 0 , "we should have valid vtable index at this point"); |
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161 |
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162 kind = CallInfo::vtable_call; |
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163 } else if (resolved_method->has_vtable_index()) { |
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164 // Can occur if an interface redeclares a method of Object. |
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165 |
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166 #ifdef ASSERT |
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167 // Ensure that this is really the case. |
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168 KlassHandle object_klass = SystemDictionary::Object_klass(); |
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169 Method * object_resolved_method = object_klass()->vtable()->method_at(index); |
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170 assert(object_resolved_method->name() == resolved_method->name(), |
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171 err_msg("Object and interface method names should match at vtable index %d, %s != %s", |
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172 index, object_resolved_method->name()->as_C_string(), resolved_method->name()->as_C_string())); |
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173 assert(object_resolved_method->signature() == resolved_method->signature(), |
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174 err_msg("Object and interface method signatures should match at vtable index %d, %s != %s", |
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175 index, object_resolved_method->signature()->as_C_string(), resolved_method->signature()->as_C_string())); |
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176 #endif // ASSERT |
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177 |
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178 kind = CallInfo::vtable_call; |
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179 } else { |
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180 // A regular interface call. |
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181 kind = CallInfo::itable_call; |
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182 index = resolved_method->itable_index(); |
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183 } |
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184 assert(index == Method::nonvirtual_vtable_index || index >= 0, err_msg("bad index %d", index)); |
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185 _call_kind = kind; |
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186 _call_index = index; |
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187 _resolved_appendix = Handle(); |
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188 DEBUG_ONLY(verify()); |
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189 } |
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190 |
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191 #ifdef ASSERT |
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192 void CallInfo::verify() { |
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193 switch (call_kind()) { // the meaning and allowed value of index depends on kind |
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194 case CallInfo::direct_call: |
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195 if (_call_index == Method::nonvirtual_vtable_index) break; |
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196 // else fall through to check vtable index: |
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197 case CallInfo::vtable_call: |
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198 assert(resolved_klass()->verify_vtable_index(_call_index), ""); |
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199 break; |
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200 case CallInfo::itable_call: |
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201 assert(resolved_method()->method_holder()->verify_itable_index(_call_index), ""); |
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202 break; |
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203 case CallInfo::unknown_kind: |
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204 assert(call_kind() != CallInfo::unknown_kind, "CallInfo must be set"); |
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205 break; |
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206 default: |
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207 fatal(err_msg_res("Unexpected call kind %d", call_kind())); |
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208 } |
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209 } |
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210 #endif //ASSERT |
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211 |
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212 |
0 | 213 |
214 //------------------------------------------------------------------------------------------------------------------------ | |
215 // Klass resolution | |
216 | |
217 void LinkResolver::check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS) { | |
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218 if (!Reflection::verify_class_access(ref_klass(), |
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219 sel_klass(), |
0 | 220 true)) { |
221 ResourceMark rm(THREAD); | |
222 Exceptions::fthrow( | |
223 THREAD_AND_LOCATION, | |
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224 vmSymbols::java_lang_IllegalAccessError(), |
0 | 225 "tried to access class %s from class %s", |
226 sel_klass->external_name(), | |
227 ref_klass->external_name() | |
228 ); | |
229 return; | |
230 } | |
231 } | |
232 | |
233 void LinkResolver::resolve_klass(KlassHandle& result, constantPoolHandle pool, int index, TRAPS) { | |
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234 Klass* result_oop = pool->klass_ref_at(index, CHECK); |
0 | 235 result = KlassHandle(THREAD, result_oop); |
236 } | |
237 | |
238 //------------------------------------------------------------------------------------------------------------------------ | |
239 // Method resolution | |
240 // | |
241 // According to JVM spec. $5.4.3c & $5.4.3d | |
242 | |
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243 // Look up method in klasses, including static methods |
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244 // Then look up local default methods |
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245 void LinkResolver::lookup_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, bool checkpolymorphism, bool in_imethod_resolve, TRAPS) { |
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246 Method* result_oop = klass->uncached_lookup_method(name, signature); |
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247 |
18046 | 248 if (klass->oop_is_array()) { |
249 // Only consider klass and super klass for arrays | |
250 result = methodHandle(THREAD, result_oop); | |
251 return; | |
252 } | |
253 | |
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254 // JDK 8, JVMS 5.4.3.4: Interface method resolution should |
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255 // ignore static and non-public methods of java.lang.Object, |
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256 // like clone, finalize, registerNatives. |
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257 if (in_imethod_resolve && |
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258 result_oop != NULL && |
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259 klass->is_interface() && |
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260 (result_oop->is_static() || !result_oop->is_public()) && |
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261 result_oop->method_holder() == SystemDictionary::Object_klass()) { |
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262 result_oop = NULL; |
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263 } |
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264 |
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265 if (result_oop == NULL) { |
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266 Array<Method*>* default_methods = InstanceKlass::cast(klass())->default_methods(); |
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267 if (default_methods != NULL) { |
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268 result_oop = InstanceKlass::find_method(default_methods, name, signature); |
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269 } |
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270 } |
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271 |
13413 | 272 if (checkpolymorphism && EnableInvokeDynamic && result_oop != NULL) { |
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273 vmIntrinsics::ID iid = result_oop->intrinsic_id(); |
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274 if (MethodHandles::is_signature_polymorphic(iid)) { |
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275 // Do not link directly to these. The VM must produce a synthetic one using lookup_polymorphic_method. |
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276 return; |
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277 } |
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278 } |
0 | 279 result = methodHandle(THREAD, result_oop); |
280 } | |
281 | |
282 // returns first instance method | |
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283 // Looks up method in classes, then looks up local default methods |
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284 void LinkResolver::lookup_instance_method_in_klasses(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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285 Method* result_oop = klass->uncached_lookup_method(name, signature); |
0 | 286 result = methodHandle(THREAD, result_oop); |
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287 while (!result.is_null() && result->is_static() && result->method_holder()->super() != NULL) { |
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288 KlassHandle super_klass = KlassHandle(THREAD, result->method_holder()->super()); |
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289 result = methodHandle(THREAD, super_klass->uncached_lookup_method(name, signature)); |
0 | 290 } |
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291 |
18046 | 292 if (klass->oop_is_array()) { |
293 // Only consider klass and super klass for arrays | |
294 return; | |
295 } | |
296 | |
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297 if (result.is_null()) { |
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298 Array<Method*>* default_methods = InstanceKlass::cast(klass())->default_methods(); |
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299 if (default_methods != NULL) { |
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300 result = methodHandle(InstanceKlass::find_method(default_methods, name, signature)); |
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301 assert(result.is_null() || !result->is_static(), "static defaults not allowed"); |
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302 } |
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303 } |
0 | 304 } |
305 | |
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306 int LinkResolver::vtable_index_of_interface_method(KlassHandle klass, |
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307 methodHandle resolved_method) { |
0 | 308 |
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309 int vtable_index = Method::invalid_vtable_index; |
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310 Symbol* name = resolved_method->name(); |
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311 Symbol* signature = resolved_method->signature(); |
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312 |
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313 // First check in default method array |
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314 if (!resolved_method->is_abstract() && |
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315 (InstanceKlass::cast(klass())->default_methods() != NULL)) { |
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316 int index = InstanceKlass::find_method_index(InstanceKlass::cast(klass())->default_methods(), name, signature); |
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317 if (index >= 0 ) { |
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318 vtable_index = InstanceKlass::cast(klass())->default_vtable_indices()->at(index); |
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319 } |
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320 } |
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321 if (vtable_index == Method::invalid_vtable_index) { |
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322 // get vtable_index for miranda methods |
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323 ResourceMark rm; |
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324 klassVtable *vt = InstanceKlass::cast(klass())->vtable(); |
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325 vtable_index = vt->index_of_miranda(name, signature); |
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326 } |
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327 return vtable_index; |
0 | 328 } |
329 | |
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330 void LinkResolver::lookup_method_in_interfaces(methodHandle& result, KlassHandle klass, Symbol* name, Symbol* signature, TRAPS) { |
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331 InstanceKlass *ik = InstanceKlass::cast(klass()); |
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332 |
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333 // Specify 'true' in order to skip default methods when searching the |
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334 // interfaces. Function lookup_method_in_klasses() already looked for |
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335 // the method in the default methods table. |
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336 result = methodHandle(THREAD, ik->lookup_method_in_all_interfaces(name, signature, true)); |
0 | 337 } |
338 | |
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339 void LinkResolver::lookup_polymorphic_method(methodHandle& result, |
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340 KlassHandle klass, Symbol* name, Symbol* full_signature, |
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341 KlassHandle current_klass, |
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342 Handle *appendix_result_or_null, |
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343 Handle *method_type_result, |
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344 TRAPS) { |
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345 vmIntrinsics::ID iid = MethodHandles::signature_polymorphic_name_id(name); |
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346 if (TraceMethodHandles) { |
9082 | 347 ResourceMark rm(THREAD); |
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348 tty->print_cr("lookup_polymorphic_method iid=%s %s.%s%s", |
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349 vmIntrinsics::name_at(iid), klass->external_name(), |
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350 name->as_C_string(), full_signature->as_C_string()); |
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351 } |
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352 if (EnableInvokeDynamic && |
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353 klass() == SystemDictionary::MethodHandle_klass() && |
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354 iid != vmIntrinsics::_none) { |
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355 if (MethodHandles::is_signature_polymorphic_intrinsic(iid)) { |
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356 // Most of these do not need an up-call to Java to resolve, so can be done anywhere. |
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357 // Do not erase last argument type (MemberName) if it is a static linkTo method. |
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358 bool keep_last_arg = MethodHandles::is_signature_polymorphic_static(iid); |
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359 TempNewSymbol basic_signature = |
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360 MethodHandles::lookup_basic_type_signature(full_signature, keep_last_arg, CHECK); |
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361 if (TraceMethodHandles) { |
9082 | 362 ResourceMark rm(THREAD); |
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363 tty->print_cr("lookup_polymorphic_method %s %s => basic %s", |
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364 name->as_C_string(), |
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365 full_signature->as_C_string(), |
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366 basic_signature->as_C_string()); |
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367 } |
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368 result = SystemDictionary::find_method_handle_intrinsic(iid, |
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369 basic_signature, |
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370 CHECK); |
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371 if (result.not_null()) { |
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372 assert(result->is_method_handle_intrinsic(), "MH.invokeBasic or MH.linkTo* intrinsic"); |
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373 assert(result->intrinsic_id() != vmIntrinsics::_invokeGeneric, "wrong place to find this"); |
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374 assert(basic_signature == result->signature(), "predict the result signature"); |
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375 if (TraceMethodHandles) { |
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376 tty->print("lookup_polymorphic_method => intrinsic "); |
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377 result->print_on(tty); |
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378 } |
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379 return; |
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380 } |
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381 } else if (iid == vmIntrinsics::_invokeGeneric |
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382 && !THREAD->is_Compiler_thread() |
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383 && appendix_result_or_null != NULL) { |
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384 // This is a method with type-checking semantics. |
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385 // We will ask Java code to spin an adapter method for it. |
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386 if (!MethodHandles::enabled()) { |
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387 // Make sure the Java part of the runtime has been booted up. |
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388 Klass* natives = SystemDictionary::MethodHandleNatives_klass(); |
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389 if (natives == NULL || InstanceKlass::cast(natives)->is_not_initialized()) { |
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390 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_invoke_MethodHandleNatives(), |
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391 Handle(), |
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392 Handle(), |
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393 true, |
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394 CHECK); |
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395 } |
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396 } |
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397 |
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398 Handle appendix; |
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399 Handle method_type; |
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400 result = SystemDictionary::find_method_handle_invoker(name, |
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401 full_signature, |
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402 current_klass, |
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403 &appendix, |
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404 &method_type, |
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405 CHECK); |
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406 if (TraceMethodHandles) { |
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407 tty->print("lookup_polymorphic_method => (via Java) "); |
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408 result->print_on(tty); |
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409 tty->print(" lookup_polymorphic_method => appendix = "); |
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410 if (appendix.is_null()) tty->print_cr("(none)"); |
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411 else appendix->print_on(tty); |
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412 } |
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413 if (result.not_null()) { |
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414 #ifdef ASSERT |
9082 | 415 ResourceMark rm(THREAD); |
416 | |
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417 TempNewSymbol basic_signature = |
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418 MethodHandles::lookup_basic_type_signature(full_signature, CHECK); |
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419 int actual_size_of_params = result->size_of_parameters(); |
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420 int expected_size_of_params = ArgumentSizeComputer(basic_signature).size(); |
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421 // +1 for MethodHandle.this, +1 for trailing MethodType |
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422 if (!MethodHandles::is_signature_polymorphic_static(iid)) expected_size_of_params += 1; |
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423 if (appendix.not_null()) expected_size_of_params += 1; |
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424 if (actual_size_of_params != expected_size_of_params) { |
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425 tty->print_cr("*** basic_signature=%s", basic_signature->as_C_string()); |
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426 tty->print_cr("*** result for %s: ", vmIntrinsics::name_at(iid)); |
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427 result->print(); |
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428 } |
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429 assert(actual_size_of_params == expected_size_of_params, |
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430 err_msg("%d != %d", actual_size_of_params, expected_size_of_params)); |
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431 #endif //ASSERT |
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432 |
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433 assert(appendix_result_or_null != NULL, ""); |
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434 (*appendix_result_or_null) = appendix; |
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435 (*method_type_result) = method_type; |
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436 return; |
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437 } |
710 | 438 } |
439 } | |
440 } | |
441 | |
0 | 442 void LinkResolver::check_method_accessability(KlassHandle ref_klass, |
443 KlassHandle resolved_klass, | |
444 KlassHandle sel_klass, | |
445 methodHandle sel_method, | |
446 TRAPS) { | |
447 | |
448 AccessFlags flags = sel_method->access_flags(); | |
449 | |
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450 // Special case: arrays always override "clone". JVMS 2.15. |
0 | 451 // If the resolved klass is an array class, and the declaring class |
452 // is java.lang.Object and the method is "clone", set the flags | |
453 // to public. | |
454 // | |
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455 // We'll check for the method name first, as that's most likely |
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456 // to be false (so we'll short-circuit out of these tests). |
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457 if (sel_method->name() == vmSymbols::clone_name() && |
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458 sel_klass() == SystemDictionary::Object_klass() && |
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459 resolved_klass->oop_is_array()) { |
0 | 460 // We need to change "protected" to "public". |
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461 assert(flags.is_protected(), "clone not protected?"); |
0 | 462 jint new_flags = flags.as_int(); |
463 new_flags = new_flags & (~JVM_ACC_PROTECTED); | |
464 new_flags = new_flags | JVM_ACC_PUBLIC; | |
465 flags.set_flags(new_flags); | |
466 } | |
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467 // assert(extra_arg_result_or_null != NULL, "must be able to return extra argument"); |
0 | 468 |
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469 if (!Reflection::verify_field_access(ref_klass(), |
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470 resolved_klass(), |
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471 sel_klass(), |
0 | 472 flags, |
473 true)) { | |
474 ResourceMark rm(THREAD); | |
475 Exceptions::fthrow( | |
476 THREAD_AND_LOCATION, | |
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477 vmSymbols::java_lang_IllegalAccessError(), |
0 | 478 "tried to access method %s.%s%s from class %s", |
479 sel_klass->external_name(), | |
480 sel_method->name()->as_C_string(), | |
481 sel_method->signature()->as_C_string(), | |
482 ref_klass->external_name() | |
483 ); | |
484 return; | |
485 } | |
486 } | |
487 | |
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488 void LinkResolver::resolve_method_statically(methodHandle& resolved_method, KlassHandle& resolved_klass, |
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489 Bytecodes::Code code, constantPoolHandle pool, int index, TRAPS) { |
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490 // This method is used only |
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491 // (1) in C2 from InlineTree::ok_to_inline (via ciMethod::check_call), |
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492 // and |
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493 // (2) in Bytecode_invoke::static_target |
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494 // It appears to fail when applied to an invokeinterface call site. |
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495 // FIXME: Remove this method and ciMethod::check_call; refactor to use the other LinkResolver entry points. |
0 | 496 // resolve klass |
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497 if (code == Bytecodes::_invokedynamic) { |
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498 resolved_klass = SystemDictionary::MethodHandle_klass(); |
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499 Symbol* method_name = vmSymbols::invoke_name(); |
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500 Symbol* method_signature = pool->signature_ref_at(index); |
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501 KlassHandle current_klass(THREAD, pool->pool_holder()); |
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502 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, false, CHECK); |
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503 return; |
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504 } |
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505 |
0 | 506 resolve_klass(resolved_klass, pool, index, CHECK); |
507 | |
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508 Symbol* method_name = pool->name_ref_at(index); |
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509 Symbol* method_signature = pool->signature_ref_at(index); |
0 | 510 KlassHandle current_klass(THREAD, pool->pool_holder()); |
511 | |
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512 if (pool->has_preresolution() |
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513 || (resolved_klass() == SystemDictionary::MethodHandle_klass() && |
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514 MethodHandles::is_signature_polymorphic_name(resolved_klass(), method_name))) { |
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515 Method* result_oop = ConstantPool::method_at_if_loaded(pool, index); |
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516 if (result_oop != NULL) { |
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517 resolved_method = methodHandle(THREAD, result_oop); |
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518 return; |
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519 } |
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520 } |
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521 |
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522 if (code == Bytecodes::_invokeinterface) { |
13413 | 523 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
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524 } else if (code == Bytecodes::_invokevirtual) { |
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525 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
13413 | 526 } else if (!resolved_klass->is_interface()) { |
527 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, false, CHECK); | |
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528 } else { |
13413 | 529 bool nostatics = (code == Bytecodes::_invokestatic) ? false : true; |
530 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, true, nostatics, CHECK); | |
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531 } |
0 | 532 } |
533 | |
534 void LinkResolver::resolve_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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535 Symbol* method_name, Symbol* method_signature, |
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536 KlassHandle current_klass, bool check_access, |
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537 bool require_methodref, TRAPS) { |
0 | 538 |
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539 Handle nested_exception; |
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540 |
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541 // 1. check if methodref required, that resolved_klass is not interfacemethodref |
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542 if (require_methodref && resolved_klass->is_interface()) { |
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543 ResourceMark rm(THREAD); |
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544 char buf[200]; |
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545 jio_snprintf(buf, sizeof(buf), "Found interface %s, but class was expected", |
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546 resolved_klass()->external_name()); |
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547 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
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548 } |
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549 |
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550 // 2. lookup method in resolved klass and its super klasses |
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551 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, true, false, CHECK); |
0 | 552 |
18046 | 553 if (resolved_method.is_null() && !resolved_klass->oop_is_array()) { // not found in the class hierarchy |
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554 // 3. lookup method in all the interfaces implemented by the resolved klass |
0 | 555 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK); |
556 | |
557 if (resolved_method.is_null()) { | |
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558 // JSR 292: see if this is an implicitly generated method MethodHandle.linkToVirtual(*...), etc |
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559 lookup_polymorphic_method(resolved_method, resolved_klass, method_name, method_signature, |
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560 current_klass, (Handle*)NULL, (Handle*)NULL, THREAD); |
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561 if (HAS_PENDING_EXCEPTION) { |
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562 nested_exception = Handle(THREAD, PENDING_EXCEPTION); |
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563 CLEAR_PENDING_EXCEPTION; |
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564 } |
710 | 565 } |
18046 | 566 } |
710 | 567 |
18046 | 568 if (resolved_method.is_null()) { |
569 // 4. method lookup failed | |
570 ResourceMark rm(THREAD); | |
571 THROW_MSG_CAUSE(vmSymbols::java_lang_NoSuchMethodError(), | |
572 Method::name_and_sig_as_C_string(resolved_klass(), | |
573 method_name, | |
574 method_signature), | |
575 nested_exception); | |
0 | 576 } |
577 | |
578 // 5. check if method is concrete | |
579 if (resolved_method->is_abstract() && !resolved_klass->is_abstract()) { | |
580 ResourceMark rm(THREAD); | |
581 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 582 Method::name_and_sig_as_C_string(resolved_klass(), |
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583 method_name, |
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584 method_signature)); |
0 | 585 } |
586 | |
587 // 6. access checks, access checking may be turned off when calling from within the VM. | |
588 if (check_access) { | |
589 assert(current_klass.not_null() , "current_klass should not be null"); | |
590 | |
591 // check if method can be accessed by the referring class | |
592 check_method_accessability(current_klass, | |
593 resolved_klass, | |
594 KlassHandle(THREAD, resolved_method->method_holder()), | |
595 resolved_method, | |
596 CHECK); | |
597 | |
598 // check loader constraints | |
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599 Handle loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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600 Handle class_loader (THREAD, resolved_method->method_holder()->class_loader()); |
0 | 601 { |
602 ResourceMark rm(THREAD); | |
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603 Symbol* failed_type_symbol = |
0 | 604 SystemDictionary::check_signature_loaders(method_signature, loader, |
605 class_loader, true, CHECK); | |
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606 if (failed_type_symbol != NULL) { |
0 | 607 const char* msg = "loader constraint violation: when resolving method" |
608 " \"%s\" the class loader (instance of %s) of the current class, %s," | |
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609 " and the class loader (instance of %s) for the method's defining class, %s, have" |
0 | 610 " different Class objects for the type %s used in the signature"; |
6983 | 611 char* sig = Method::name_and_sig_as_C_string(resolved_klass(),method_name,method_signature); |
0 | 612 const char* loader1 = SystemDictionary::loader_name(loader()); |
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613 char* current = InstanceKlass::cast(current_klass())->name()->as_C_string(); |
0 | 614 const char* loader2 = SystemDictionary::loader_name(class_loader()); |
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615 char* target = InstanceKlass::cast(resolved_method->method_holder()) |
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616 ->name()->as_C_string(); |
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617 char* failed_type_name = failed_type_symbol->as_C_string(); |
0 | 618 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) + |
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619 strlen(current) + strlen(loader2) + strlen(target) + |
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620 strlen(failed_type_name) + 1; |
0 | 621 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
622 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2, | |
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623 target, failed_type_name); |
0 | 624 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); |
625 } | |
626 } | |
627 } | |
628 } | |
629 | |
630 void LinkResolver::resolve_interface_method(methodHandle& resolved_method, | |
631 KlassHandle resolved_klass, | |
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632 Symbol* method_name, |
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633 Symbol* method_signature, |
0 | 634 KlassHandle current_klass, |
13413 | 635 bool check_access, |
636 bool nostatics, TRAPS) { | |
0 | 637 |
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638 // check if klass is interface |
0 | 639 if (!resolved_klass->is_interface()) { |
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640 ResourceMark rm(THREAD); |
0 | 641 char buf[200]; |
6983 | 642 jio_snprintf(buf, sizeof(buf), "Found class %s, but interface was expected", resolved_klass()->external_name()); |
0 | 643 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
644 } | |
645 | |
646 // lookup method in this interface or its super, java.lang.Object | |
13413 | 647 // JDK8: also look for static methods |
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648 lookup_method_in_klasses(resolved_method, resolved_klass, method_name, method_signature, false, true, CHECK); |
0 | 649 |
18046 | 650 if (resolved_method.is_null() && !resolved_klass->oop_is_array()) { |
0 | 651 // lookup method in all the super-interfaces |
652 lookup_method_in_interfaces(resolved_method, resolved_klass, method_name, method_signature, CHECK); | |
18046 | 653 } |
654 | |
655 if (resolved_method.is_null()) { | |
656 // no method found | |
657 ResourceMark rm(THREAD); | |
658 THROW_MSG(vmSymbols::java_lang_NoSuchMethodError(), | |
659 Method::name_and_sig_as_C_string(resolved_klass(), | |
660 method_name, | |
661 method_signature)); | |
0 | 662 } |
663 | |
13413 | 664 if (nostatics && resolved_method->is_static()) { |
665 ResourceMark rm(THREAD); | |
666 char buf[200]; | |
667 jio_snprintf(buf, sizeof(buf), "Expected instance not static method %s", Method::name_and_sig_as_C_string(resolved_klass(), | |
668 resolved_method->name(), | |
669 resolved_method->signature())); | |
670 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
671 } | |
672 | |
673 | |
0 | 674 if (check_access) { |
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675 // JDK8 adds non-public interface methods, and accessability check requirement |
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676 assert(current_klass.not_null() , "current_klass should not be null"); |
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677 |
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678 // check if method can be accessed by the referring class |
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679 check_method_accessability(current_klass, |
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680 resolved_klass, |
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681 KlassHandle(THREAD, resolved_method->method_holder()), |
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682 resolved_method, |
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683 CHECK); |
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684 |
0 | 685 HandleMark hm(THREAD); |
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686 Handle loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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687 Handle class_loader (THREAD, resolved_method->method_holder()->class_loader()); |
0 | 688 { |
689 ResourceMark rm(THREAD); | |
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690 Symbol* failed_type_symbol = |
0 | 691 SystemDictionary::check_signature_loaders(method_signature, loader, |
692 class_loader, true, CHECK); | |
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693 if (failed_type_symbol != NULL) { |
0 | 694 const char* msg = "loader constraint violation: when resolving " |
695 "interface method \"%s\" the class loader (instance of %s) of the " | |
696 "current class, %s, and the class loader (instance of %s) for " | |
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697 "the method's defining class, %s, have different Class objects for the type %s " |
0 | 698 "used in the signature"; |
6983 | 699 char* sig = Method::name_and_sig_as_C_string(resolved_klass(),method_name,method_signature); |
0 | 700 const char* loader1 = SystemDictionary::loader_name(loader()); |
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701 char* current = InstanceKlass::cast(current_klass())->name()->as_C_string(); |
0 | 702 const char* loader2 = SystemDictionary::loader_name(class_loader()); |
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703 char* target = InstanceKlass::cast(resolved_method->method_holder()) |
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704 ->name()->as_C_string(); |
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705 char* failed_type_name = failed_type_symbol->as_C_string(); |
0 | 706 size_t buflen = strlen(msg) + strlen(sig) + strlen(loader1) + |
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707 strlen(current) + strlen(loader2) + strlen(target) + |
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708 strlen(failed_type_name) + 1; |
0 | 709 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
710 jio_snprintf(buf, buflen, msg, sig, loader1, current, loader2, | |
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711 target, failed_type_name); |
0 | 712 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); |
713 } | |
714 } | |
715 } | |
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716 |
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717 if (TraceItables && Verbose) { |
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718 ResourceMark rm(THREAD); |
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719 tty->print("invokeinterface resolved method: caller-class:%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", |
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720 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name()), |
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721 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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722 Method::name_and_sig_as_C_string(resolved_klass(), |
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723 resolved_method->name(), |
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724 resolved_method->signature()), |
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725 resolved_method->method_holder()->internal_name() |
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726 ); |
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727 resolved_method->access_flags().print_on(tty); |
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728 if (resolved_method->is_default_method()) { |
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729 tty->print("default "); |
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730 } |
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731 if (resolved_method->is_overpass()) { |
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732 tty->print("overpass"); |
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733 } |
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734 tty->cr(); |
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735 } |
0 | 736 } |
737 | |
738 //------------------------------------------------------------------------------------------------------------------------ | |
739 // Field resolution | |
740 | |
741 void LinkResolver::check_field_accessability(KlassHandle ref_klass, | |
742 KlassHandle resolved_klass, | |
743 KlassHandle sel_klass, | |
744 fieldDescriptor& fd, | |
745 TRAPS) { | |
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746 if (!Reflection::verify_field_access(ref_klass(), |
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747 resolved_klass(), |
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748 sel_klass(), |
0 | 749 fd.access_flags(), |
750 true)) { | |
751 ResourceMark rm(THREAD); | |
752 Exceptions::fthrow( | |
753 THREAD_AND_LOCATION, | |
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754 vmSymbols::java_lang_IllegalAccessError(), |
0 | 755 "tried to access field %s.%s from class %s", |
756 sel_klass->external_name(), | |
757 fd.name()->as_C_string(), | |
758 ref_klass->external_name() | |
759 ); | |
760 return; | |
761 } | |
762 } | |
763 | |
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764 void LinkResolver::resolve_field_access(fieldDescriptor& result, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) { |
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765 // Load these early in case the resolve of the containing klass fails |
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766 Symbol* field = pool->name_ref_at(index); |
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767 Symbol* sig = pool->signature_ref_at(index); |
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768 |
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769 // resolve specified klass |
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770 KlassHandle resolved_klass; |
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771 resolve_klass(resolved_klass, pool, index, CHECK); |
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772 |
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773 KlassHandle current_klass(THREAD, pool->pool_holder()); |
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774 resolve_field(result, resolved_klass, field, sig, current_klass, byte, true, true, CHECK); |
0 | 775 } |
776 | |
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777 void LinkResolver::resolve_field(fieldDescriptor& fd, KlassHandle resolved_klass, Symbol* field, Symbol* sig, |
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778 KlassHandle current_klass, Bytecodes::Code byte, bool check_access, bool initialize_class, |
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779 TRAPS) { |
0 | 780 assert(byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic || |
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781 byte == Bytecodes::_getfield || byte == Bytecodes::_putfield || |
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782 (byte == Bytecodes::_nop && !check_access), "bad field access bytecode"); |
0 | 783 |
784 bool is_static = (byte == Bytecodes::_getstatic || byte == Bytecodes::_putstatic); | |
785 bool is_put = (byte == Bytecodes::_putfield || byte == Bytecodes::_putstatic); | |
786 | |
787 // Check if there's a resolved klass containing the field | |
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788 if (resolved_klass.is_null()) { |
0 | 789 ResourceMark rm(THREAD); |
790 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); | |
791 } | |
792 | |
793 // Resolve instance field | |
18046 | 794 KlassHandle sel_klass(THREAD, resolved_klass->find_field(field, sig, &fd)); |
0 | 795 // check if field exists; i.e., if a klass containing the field def has been selected |
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796 if (sel_klass.is_null()) { |
0 | 797 ResourceMark rm(THREAD); |
798 THROW_MSG(vmSymbols::java_lang_NoSuchFieldError(), field->as_C_string()); | |
799 } | |
800 | |
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801 if (!check_access) |
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802 // Access checking may be turned off when calling from within the VM. |
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803 return; |
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804 |
0 | 805 // check access |
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806 check_field_accessability(current_klass, resolved_klass, sel_klass, fd, CHECK); |
0 | 807 |
808 // check for errors | |
809 if (is_static != fd.is_static()) { | |
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810 ResourceMark rm(THREAD); |
0 | 811 char msg[200]; |
6983 | 812 jio_snprintf(msg, sizeof(msg), "Expected %s field %s.%s", is_static ? "static" : "non-static", resolved_klass()->external_name(), fd.name()->as_C_string()); |
0 | 813 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), msg); |
814 } | |
815 | |
816 // Final fields can only be accessed from its own class. | |
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817 if (is_put && fd.access_flags().is_final() && sel_klass() != current_klass()) { |
0 | 818 THROW(vmSymbols::java_lang_IllegalAccessError()); |
819 } | |
820 | |
821 // initialize resolved_klass if necessary | |
822 // note 1: the klass which declared the field must be initialized (i.e, sel_klass) | |
823 // according to the newest JVM spec (5.5, p.170) - was bug (gri 7/28/99) | |
824 // | |
825 // note 2: we don't want to force initialization if we are just checking | |
826 // if the field access is legal; e.g., during compilation | |
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827 if (is_static && initialize_class) { |
0 | 828 sel_klass->initialize(CHECK); |
829 } | |
830 | |
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831 if (sel_klass() != current_klass()) { |
0 | 832 HandleMark hm(THREAD); |
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833 Handle ref_loader (THREAD, InstanceKlass::cast(current_klass())->class_loader()); |
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834 Handle sel_loader (THREAD, InstanceKlass::cast(sel_klass())->class_loader()); |
0 | 835 { |
836 ResourceMark rm(THREAD); | |
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837 Symbol* failed_type_symbol = |
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838 SystemDictionary::check_signature_loaders(sig, |
0 | 839 ref_loader, sel_loader, |
840 false, | |
841 CHECK); | |
8840
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842 if (failed_type_symbol != NULL) { |
0 | 843 const char* msg = "loader constraint violation: when resolving field" |
844 " \"%s\" the class loader (instance of %s) of the referring class, " | |
845 "%s, and the class loader (instance of %s) for the field's resolved " | |
846 "type, %s, have different Class objects for that type"; | |
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847 char* field_name = field->as_C_string(); |
0 | 848 const char* loader1 = SystemDictionary::loader_name(ref_loader()); |
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849 char* sel = InstanceKlass::cast(sel_klass())->name()->as_C_string(); |
0 | 850 const char* loader2 = SystemDictionary::loader_name(sel_loader()); |
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851 char* failed_type_name = failed_type_symbol->as_C_string(); |
0 | 852 size_t buflen = strlen(msg) + strlen(field_name) + strlen(loader1) + |
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853 strlen(sel) + strlen(loader2) + strlen(failed_type_name) + 1; |
0 | 854 char* buf = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, buflen); |
855 jio_snprintf(buf, buflen, msg, field_name, loader1, sel, loader2, | |
856 failed_type_name); | |
857 THROW_MSG(vmSymbols::java_lang_LinkageError(), buf); | |
858 } | |
859 } | |
860 } | |
861 | |
862 // return information. note that the klass is set to the actual klass containing the | |
863 // field, otherwise access of static fields in superclasses will not work. | |
864 } | |
865 | |
866 | |
867 //------------------------------------------------------------------------------------------------------------------------ | |
868 // Invoke resolution | |
869 // | |
870 // Naming conventions: | |
871 // | |
872 // resolved_method the specified method (i.e., static receiver specified via constant pool index) | |
873 // sel_method the selected method (selected via run-time lookup; e.g., based on dynamic receiver class) | |
874 // resolved_klass the specified klass (i.e., specified via constant pool index) | |
875 // recv_klass the receiver klass | |
876 | |
877 | |
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878 void LinkResolver::resolve_static_call(CallInfo& result, KlassHandle& resolved_klass, Symbol* method_name, |
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879 Symbol* method_signature, KlassHandle current_klass, |
0 | 880 bool check_access, bool initialize_class, TRAPS) { |
881 methodHandle resolved_method; | |
882 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
6983 | 883 resolved_klass = KlassHandle(THREAD, resolved_method->method_holder()); |
0 | 884 |
885 // Initialize klass (this should only happen if everything is ok) | |
886 if (initialize_class && resolved_klass->should_be_initialized()) { | |
887 resolved_klass->initialize(CHECK); | |
888 linktime_resolve_static_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
889 } | |
890 | |
891 // setup result | |
892 result.set_static(resolved_klass, resolved_method, CHECK); | |
893 } | |
894 | |
895 // throws linktime exceptions | |
896 void LinkResolver::linktime_resolve_static_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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897 Symbol* method_name, Symbol* method_signature, |
0 | 898 KlassHandle current_klass, bool check_access, TRAPS) { |
899 | |
13413 | 900 if (!resolved_klass->is_interface()) { |
901 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, false, CHECK); | |
902 } else { | |
903 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, false, CHECK); | |
904 } | |
0 | 905 assert(resolved_method->name() != vmSymbols::class_initializer_name(), "should have been checked in verifier"); |
906 | |
907 // check if static | |
908 if (!resolved_method->is_static()) { | |
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909 ResourceMark rm(THREAD); |
0 | 910 char buf[200]; |
6983 | 911 jio_snprintf(buf, sizeof(buf), "Expected static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 912 resolved_method->name(), |
913 resolved_method->signature())); | |
914 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
915 } | |
916 } | |
917 | |
918 | |
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919 void LinkResolver::resolve_special_call(CallInfo& result, KlassHandle resolved_klass, Symbol* method_name, |
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920 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) { |
0 | 921 methodHandle resolved_method; |
922 linktime_resolve_special_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
923 runtime_resolve_special_method(result, resolved_method, resolved_klass, current_klass, check_access, CHECK); | |
924 } | |
925 | |
926 // throws linktime exceptions | |
927 void LinkResolver::linktime_resolve_special_method(methodHandle& resolved_method, KlassHandle resolved_klass, | |
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928 Symbol* method_name, Symbol* method_signature, |
0 | 929 KlassHandle current_klass, bool check_access, TRAPS) { |
930 | |
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931 // Invokespecial is called for multiple special reasons: |
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932 // <init> |
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933 // local private method invocation, for classes and interfaces |
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934 // superclass.method, which can also resolve to a default method |
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935 // and the selected method is recalculated relative to the direct superclass |
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936 // superinterface.method, which explicitly does not check shadowing |
6934 | 937 |
13413 | 938 if (!resolved_klass->is_interface()) { |
939 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, false, CHECK); | |
940 } else { | |
941 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, true, CHECK); | |
942 } | |
0 | 943 |
944 // check if method name is <init>, that it is found in same klass as static type | |
945 if (resolved_method->name() == vmSymbols::object_initializer_name() && | |
946 resolved_method->method_holder() != resolved_klass()) { | |
947 ResourceMark rm(THREAD); | |
948 Exceptions::fthrow( | |
949 THREAD_AND_LOCATION, | |
2177
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950 vmSymbols::java_lang_NoSuchMethodError(), |
0 | 951 "%s: method %s%s not found", |
952 resolved_klass->external_name(), | |
953 resolved_method->name()->as_C_string(), | |
954 resolved_method->signature()->as_C_string() | |
955 ); | |
956 return; | |
957 } | |
958 | |
13401
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959 // check if invokespecial's interface method reference is in an indirect superinterface |
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960 if (!current_klass.is_null() && resolved_klass->is_interface()) { |
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961 Klass *klass_to_check = !InstanceKlass::cast(current_klass())->is_anonymous() ? |
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962 current_klass() : |
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963 InstanceKlass::cast(current_klass())->host_klass(); |
13433
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964 // As of the fix for 4486457 we disable verification for all of the |
769557390c43
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965 // dynamically-generated bytecodes associated with the 1.4 |
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966 // reflection implementation, not just those associated with |
769557390c43
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967 // sun/reflect/SerializationConstructorAccessor. |
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968 bool is_reflect = JDK_Version::is_gte_jdk14x_version() && |
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969 UseNewReflection && |
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970 klass_to_check->is_subclass_of( |
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971 SystemDictionary::reflect_MagicAccessorImpl_klass()); |
13401
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|
972 |
13433
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973 if (!is_reflect && |
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974 !InstanceKlass::cast(klass_to_check)->is_same_or_direct_interface(resolved_klass())) { |
13401
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975 ResourceMark rm(THREAD); |
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976 char buf[200]; |
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977 jio_snprintf(buf, sizeof(buf), |
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978 "Interface method reference: %s, is in an indirect superinterface of %s", |
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979 Method::name_and_sig_as_C_string(resolved_klass(), |
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980 resolved_method->name(), |
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|
981 resolved_method->signature()), |
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982 current_klass->external_name()); |
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983 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
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984 } |
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|
985 } |
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|
986 |
0 | 987 // check if not static |
988 if (resolved_method->is_static()) { | |
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989 ResourceMark rm(THREAD); |
0 | 990 char buf[200]; |
991 jio_snprintf(buf, sizeof(buf), | |
992 "Expecting non-static method %s", | |
6983 | 993 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 994 resolved_method->name(), |
995 resolved_method->signature())); | |
996 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
997 } | |
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998 |
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999 if (TraceItables && Verbose) { |
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1000 ResourceMark rm(THREAD); |
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1001 tty->print("invokespecial resolved method: caller-class:%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", |
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1002 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name()), |
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1003 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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1004 Method::name_and_sig_as_C_string(resolved_klass(), |
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1005 resolved_method->name(), |
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1006 resolved_method->signature()), |
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1007 resolved_method->method_holder()->internal_name() |
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1008 ); |
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1009 resolved_method->access_flags().print_on(tty); |
12823
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1010 if (resolved_method->is_default_method()) { |
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1011 tty->print("default "); |
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1012 } |
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1013 if (resolved_method->is_overpass()) { |
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1014 tty->print("overpass"); |
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1015 } |
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1016 tty->cr(); |
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1017 } |
0 | 1018 } |
1019 | |
1020 // throws runtime exceptions | |
1021 void LinkResolver::runtime_resolve_special_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, | |
1022 KlassHandle current_klass, bool check_access, TRAPS) { | |
1023 | |
1024 // resolved method is selected method unless we have an old-style lookup | |
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1025 // for a superclass method |
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1026 // Invokespecial for a superinterface, resolved method is selected method, |
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1027 // no checks for shadowing |
0 | 1028 methodHandle sel_method(THREAD, resolved_method()); |
1029 | |
1030 // check if this is an old-style super call and do a new lookup if so | |
1031 { KlassHandle method_klass = KlassHandle(THREAD, | |
1032 resolved_method->method_holder()); | |
1033 | |
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1034 if (check_access && |
0 | 1035 // a) check if ACC_SUPER flag is set for the current class |
8702 | 1036 (current_klass->is_super() || !AllowNonVirtualCalls) && |
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1037 // b) check if the class of the resolved_klass is a superclass |
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1038 // (not supertype in order to exclude interface classes) of the current class. |
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1039 // This check is not performed for super.invoke for interface methods |
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1040 // in super interfaces. |
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1041 current_klass->is_subclass_of(resolved_klass()) && |
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1042 current_klass() != resolved_klass() && |
0 | 1043 // c) check if the method is not <init> |
1044 resolved_method->name() != vmSymbols::object_initializer_name()) { | |
1045 // Lookup super method | |
1046 KlassHandle super_klass(THREAD, current_klass->super()); | |
1047 lookup_instance_method_in_klasses(sel_method, super_klass, | |
2177
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|
1048 resolved_method->name(), |
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|
1049 resolved_method->signature(), CHECK); |
0 | 1050 // check if found |
1051 if (sel_method.is_null()) { | |
1052 ResourceMark rm(THREAD); | |
1053 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1054 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1055 resolved_method->name(), |
1056 resolved_method->signature())); | |
1057 } | |
1058 } | |
1059 } | |
1060 | |
1061 // check if not static | |
1062 if (sel_method->is_static()) { | |
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|
1063 ResourceMark rm(THREAD); |
0 | 1064 char buf[200]; |
6983 | 1065 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1066 resolved_method->name(), |
1067 resolved_method->signature())); | |
1068 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
1069 } | |
1070 | |
1071 // check if abstract | |
1072 if (sel_method->is_abstract()) { | |
1073 ResourceMark rm(THREAD); | |
1074 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1075 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1076 sel_method->name(), |
1077 sel_method->signature())); | |
1078 } | |
1079 | |
12318
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1080 if (TraceItables && Verbose) { |
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1081 ResourceMark rm(THREAD); |
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1082 tty->print("invokespecial selected method: resolved-class:%s, method:%s, method_holder:%s, access_flags: ", |
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1083 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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1084 Method::name_and_sig_as_C_string(resolved_klass(), |
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1085 sel_method->name(), |
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1086 sel_method->signature()), |
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1087 sel_method->method_holder()->internal_name() |
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1088 ); |
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1089 sel_method->access_flags().print_on(tty); |
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1090 if (sel_method->is_default_method()) { |
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1091 tty->print("default "); |
12318
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|
1092 } |
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1093 if (sel_method->is_overpass()) { |
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1094 tty->print("overpass"); |
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|
1095 } |
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|
1096 tty->cr(); |
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1097 } |
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|
1098 |
0 | 1099 // setup result |
1100 result.set_static(resolved_klass, sel_method, CHECK); | |
1101 } | |
1102 | |
1103 void LinkResolver::resolve_virtual_call(CallInfo& result, Handle recv, KlassHandle receiver_klass, KlassHandle resolved_klass, | |
2177
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1104 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass, |
0 | 1105 bool check_access, bool check_null_and_abstract, TRAPS) { |
1106 methodHandle resolved_method; | |
1107 linktime_resolve_virtual_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
1108 runtime_resolve_virtual_method(result, resolved_method, resolved_klass, recv, receiver_klass, check_null_and_abstract, CHECK); | |
1109 } | |
1110 | |
1111 // throws linktime exceptions | |
1112 void LinkResolver::linktime_resolve_virtual_method(methodHandle &resolved_method, KlassHandle resolved_klass, | |
2177
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1113 Symbol* method_name, Symbol* method_signature, |
0 | 1114 KlassHandle current_klass, bool check_access, TRAPS) { |
1115 // normal method resolution | |
12858
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1116 resolve_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, true, CHECK); |
0 | 1117 |
1118 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); | |
1119 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); | |
1120 | |
12318
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1121 // check if private interface method |
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1122 if (resolved_klass->is_interface() && resolved_method->is_private()) { |
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1123 ResourceMark rm(THREAD); |
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1124 char buf[200]; |
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1125 jio_snprintf(buf, sizeof(buf), "private interface method requires invokespecial, not invokevirtual: method %s, caller-class:%s", |
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1126 Method::name_and_sig_as_C_string(resolved_klass(), |
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1127 resolved_method->name(), |
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1128 resolved_method->signature()), |
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|
1129 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name())); |
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1130 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
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|
1131 } |
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|
1132 |
0 | 1133 // check if not static |
1134 if (resolved_method->is_static()) { | |
3324
acf5e660c71a
6728025: LinkResolver is missing some ResourceMarks
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|
1135 ResourceMark rm(THREAD); |
0 | 1136 char buf[200]; |
6983 | 1137 jio_snprintf(buf, sizeof(buf), "Expecting non-static method %s", Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1138 resolved_method->name(), |
1139 resolved_method->signature())); | |
1140 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); | |
1141 } | |
12318
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|
1142 |
12823
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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diff
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|
1143 if (PrintVtables && Verbose) { |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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parents:
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diff
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|
1144 ResourceMark rm(THREAD); |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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|
1145 tty->print("invokevirtual resolved method: caller-class:%s, compile-time-class:%s, method:%s, method_holder:%s, access_flags: ", |
ac9cb1d5a202
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parents:
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|
1146 (current_klass.is_null() ? "<NULL>" : current_klass->internal_name()), |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
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diff
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|
1147 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
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|
1148 Method::name_and_sig_as_C_string(resolved_klass(), |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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|
1149 resolved_method->name(), |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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parents:
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diff
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|
1150 resolved_method->signature()), |
ac9cb1d5a202
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parents:
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|
1151 resolved_method->method_holder()->internal_name() |
ac9cb1d5a202
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|
1152 ); |
ac9cb1d5a202
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|
1153 resolved_method->access_flags().print_on(tty); |
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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parents:
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diff
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|
1154 if (resolved_method->is_default_method()) { |
13055
fce21ac5968d
8027229: ICCE expected for >=2 maximally specific default methods.
acorn
parents:
12945
diff
changeset
|
1155 tty->print("default "); |
12823
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
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|
1156 } |
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|
1157 if (resolved_method->is_overpass()) { |
ac9cb1d5a202
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parents:
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|
1158 tty->print("overpass"); |
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|
1159 } |
ac9cb1d5a202
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parents:
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|
1160 tty->cr(); |
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|
1161 } |
0 | 1162 } |
1163 | |
1164 // throws runtime exceptions | |
1165 void LinkResolver::runtime_resolve_virtual_method(CallInfo& result, | |
1166 methodHandle resolved_method, | |
1167 KlassHandle resolved_klass, | |
1168 Handle recv, | |
1169 KlassHandle recv_klass, | |
1170 bool check_null_and_abstract, | |
1171 TRAPS) { | |
1172 | |
1173 // setup default return values | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
1174 int vtable_index = Method::invalid_vtable_index; |
0 | 1175 methodHandle selected_method; |
1176 | |
1177 assert(recv.is_null() || recv->is_oop(), "receiver is not an oop"); | |
1178 | |
1179 // runtime method resolution | |
1180 if (check_null_and_abstract && recv.is_null()) { // check if receiver exists | |
1181 THROW(vmSymbols::java_lang_NullPointerException()); | |
1182 } | |
1183 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6271
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|
1184 // Virtual methods cannot be resolved before its klass has been linked, for otherwise the Method*'s |
0 | 1185 // has not been rewritten, and the vtable initialized. Make sure to do this after the nullcheck, since |
1186 // a missing receiver might result in a bogus lookup. | |
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
6934
diff
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|
1187 assert(resolved_method->method_holder()->is_linked(), "must be linked"); |
0 | 1188 |
1189 // do lookup based on receiver klass using the vtable index | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6271
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|
1190 if (resolved_method->method_holder()->is_interface()) { // miranda method |
12823
ac9cb1d5a202
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diff
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|
1191 vtable_index = vtable_index_of_interface_method(resolved_klass, |
13055
fce21ac5968d
8027229: ICCE expected for >=2 maximally specific default methods.
acorn
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12945
diff
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|
1192 resolved_method); |
0 | 1193 assert(vtable_index >= 0 , "we should have valid vtable index at this point"); |
1194 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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|
1195 InstanceKlass* inst = InstanceKlass::cast(recv_klass()); |
0 | 1196 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index)); |
1197 } else { | |
1198 // at this point we are sure that resolved_method is virtual and not | |
1199 // a miranda method; therefore, it must have a valid vtable index. | |
12264
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
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10128
diff
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|
1200 assert(!resolved_method->has_itable_index(), ""); |
0 | 1201 vtable_index = resolved_method->vtable_index(); |
1202 // We could get a negative vtable_index for final methods, | |
1203 // because as an optimization they are they are never put in the vtable, | |
1204 // unless they override an existing method. | |
1205 // If we do get a negative, it means the resolved method is the the selected | |
1206 // method, and it can never be changed by an override. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6271
diff
changeset
|
1207 if (vtable_index == Method::nonvirtual_vtable_index) { |
0 | 1208 assert(resolved_method->can_be_statically_bound(), "cannot override this method"); |
1209 selected_method = resolved_method; | |
1210 } else { | |
1211 // recv_klass might be an arrayKlassOop but all vtables start at | |
1212 // the same place. The cast is to avoid virtual call and assertion. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6271
diff
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|
1213 InstanceKlass* inst = (InstanceKlass*)recv_klass(); |
0 | 1214 selected_method = methodHandle(THREAD, inst->method_at_vtable(vtable_index)); |
1215 } | |
1216 } | |
1217 | |
1218 // check if method exists | |
1219 if (selected_method.is_null()) { | |
1220 ResourceMark rm(THREAD); | |
1221 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1222 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1223 resolved_method->name(), |
1224 resolved_method->signature())); | |
1225 } | |
1226 | |
1227 // check if abstract | |
1228 if (check_null_and_abstract && selected_method->is_abstract()) { | |
1229 ResourceMark rm(THREAD); | |
1230 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1231 Method::name_and_sig_as_C_string(resolved_klass(), |
0 | 1232 selected_method->name(), |
1233 selected_method->signature())); | |
1234 } | |
1235 | |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
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|
1236 if (PrintVtables && Verbose) { |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
changeset
|
1237 ResourceMark rm(THREAD); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
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|
1238 tty->print("invokevirtual selected method: receiver-class:%s, resolved-class:%s, method:%s, method_holder:%s, vtable_index:%d, access_flags: ", |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1239 (recv_klass.is_null() ? "<NULL>" : recv_klass->internal_name()), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1240 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1241 Method::name_and_sig_as_C_string(resolved_klass(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1242 resolved_method->name(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1243 resolved_method->signature()), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1244 selected_method->method_holder()->internal_name(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1245 vtable_index |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1246 ); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1247 selected_method->access_flags().print_on(tty); |
12823
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
12318
diff
changeset
|
1248 if (selected_method->is_default_method()) { |
13055
fce21ac5968d
8027229: ICCE expected for >=2 maximally specific default methods.
acorn
parents:
12945
diff
changeset
|
1249 tty->print("default "); |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1250 } |
12823
ac9cb1d5a202
8009130: Lambda: Fix access controls, loader constraints.
acorn
parents:
12318
diff
changeset
|
1251 if (selected_method->is_overpass()) { |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1252 tty->print("overpass"); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1253 } |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1254 tty->cr(); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1255 } |
0 | 1256 // setup result |
1257 result.set_virtual(resolved_klass, recv_klass, resolved_method, selected_method, vtable_index, CHECK); | |
1258 } | |
1259 | |
1260 void LinkResolver::resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1261 Symbol* method_name, Symbol* method_signature, KlassHandle current_klass, |
0 | 1262 bool check_access, bool check_null_and_abstract, TRAPS) { |
1263 methodHandle resolved_method; | |
1264 linktime_resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, CHECK); | |
1265 runtime_resolve_interface_method(result, resolved_method, resolved_klass, recv, recv_klass, check_null_and_abstract, CHECK); | |
1266 } | |
1267 | |
1268 // throws linktime exceptions | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1269 void LinkResolver::linktime_resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, Symbol* method_name, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1270 Symbol* method_signature, KlassHandle current_klass, bool check_access, TRAPS) { |
0 | 1271 // normal interface method resolution |
13413 | 1272 resolve_interface_method(resolved_method, resolved_klass, method_name, method_signature, current_klass, check_access, true, CHECK); |
0 | 1273 |
1274 assert(resolved_method->name() != vmSymbols::object_initializer_name(), "should have been checked in verifier"); | |
1275 assert(resolved_method->name() != vmSymbols::class_initializer_name (), "should have been checked in verifier"); | |
1276 } | |
1277 | |
1278 // throws runtime exceptions | |
1279 void LinkResolver::runtime_resolve_interface_method(CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, | |
1280 Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS) { | |
1281 // check if receiver exists | |
1282 if (check_null_and_abstract && recv.is_null()) { | |
1283 THROW(vmSymbols::java_lang_NullPointerException()); | |
1284 } | |
1285 | |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1286 // check if private interface method |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1287 if (resolved_klass->is_interface() && resolved_method->is_private()) { |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1288 ResourceMark rm(THREAD); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1289 char buf[200]; |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1290 jio_snprintf(buf, sizeof(buf), "private interface method requires invokespecial, not invokeinterface: method %s", |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1291 Method::name_and_sig_as_C_string(resolved_klass(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1292 resolved_method->name(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1293 resolved_method->signature())); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1294 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1295 } |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1296 |
0 | 1297 // check if receiver klass implements the resolved interface |
1298 if (!recv_klass->is_subtype_of(resolved_klass())) { | |
3324
acf5e660c71a
6728025: LinkResolver is missing some ResourceMarks
jcoomes
parents:
2460
diff
changeset
|
1299 ResourceMark rm(THREAD); |
0 | 1300 char buf[200]; |
1301 jio_snprintf(buf, sizeof(buf), "Class %s does not implement the requested interface %s", | |
6983 | 1302 recv_klass()->external_name(), |
1303 resolved_klass()->external_name()); | |
0 | 1304 THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf); |
1305 } | |
17464
5832cdaf89c6
8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents:
13436
diff
changeset
|
1306 |
0 | 1307 // do lookup based on receiver klass |
1308 methodHandle sel_method; | |
17464
5832cdaf89c6
8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents:
13436
diff
changeset
|
1309 // This search must match the linktime preparation search for itable initialization |
5832cdaf89c6
8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents:
13436
diff
changeset
|
1310 // to correctly enforce loader constraints for interface method inheritance |
0 | 1311 lookup_instance_method_in_klasses(sel_method, recv_klass, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1312 resolved_method->name(), |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
1313 resolved_method->signature(), CHECK); |
12264
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1314 if (sel_method.is_null() && !check_null_and_abstract) { |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1315 // In theory this is a harmless placeholder value, but |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1316 // in practice leaving in null affects the nsk default method tests. |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1317 // This needs further study. |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1318 sel_method = resolved_method; |
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents:
10128
diff
changeset
|
1319 } |
0 | 1320 // check if method exists |
1321 if (sel_method.is_null()) { | |
1322 ResourceMark rm(THREAD); | |
1323 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1324 Method::name_and_sig_as_C_string(recv_klass(), |
0 | 1325 resolved_method->name(), |
1326 resolved_method->signature())); | |
1327 } | |
10128
41ed397cc0cd
8006267: InterfaceMethod_ref should allow invokestatic and invokespecial
bharadwaj
parents:
9082
diff
changeset
|
1328 // check access |
12318
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1329 // Throw Illegal Access Error if sel_method is not public. |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1330 if (!sel_method->is_public()) { |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
12316
diff
changeset
|
1331 ResourceMark rm(THREAD); |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1332 THROW_MSG(vmSymbols::java_lang_IllegalAccessError(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents:
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diff
changeset
|
1333 Method::name_and_sig_as_C_string(recv_klass(), |
36b97be47bde
8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
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diff
changeset
|
1334 sel_method->name(), |
36b97be47bde
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diff
changeset
|
1335 sel_method->signature())); |
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|
1336 } |
0 | 1337 // check if abstract |
1338 if (check_null_and_abstract && sel_method->is_abstract()) { | |
1339 ResourceMark rm(THREAD); | |
1340 THROW_MSG(vmSymbols::java_lang_AbstractMethodError(), | |
6983 | 1341 Method::name_and_sig_as_C_string(recv_klass(), |
0 | 1342 sel_method->name(), |
1343 sel_method->signature())); | |
1344 } | |
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1345 |
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|
1346 if (TraceItables && Verbose) { |
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|
1347 ResourceMark rm(THREAD); |
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|
1348 tty->print("invokeinterface selected method: receiver-class:%s, resolved-class:%s, method:%s, method_holder:%s, access_flags: ", |
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|
1349 (recv_klass.is_null() ? "<NULL>" : recv_klass->internal_name()), |
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|
1350 (resolved_klass.is_null() ? "<NULL>" : resolved_klass->internal_name()), |
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|
1351 Method::name_and_sig_as_C_string(resolved_klass(), |
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|
1352 resolved_method->name(), |
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|
1353 resolved_method->signature()), |
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|
1354 sel_method->method_holder()->internal_name() |
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|
1355 ); |
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|
1356 sel_method->access_flags().print_on(tty); |
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|
1357 if (sel_method->is_default_method()) { |
13055
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|
1358 tty->print("default "); |
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|
1359 } |
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|
1360 if (sel_method->is_overpass()) { |
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|
1361 tty->print("overpass"); |
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|
1362 } |
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|
1363 tty->cr(); |
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|
1364 } |
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|
1365 // setup result |
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|
1366 if (!resolved_method->has_itable_index()) { |
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|
1367 int vtable_index = resolved_method->vtable_index(); |
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|
1368 assert(vtable_index == sel_method->vtable_index(), "sanity check"); |
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|
1369 result.set_virtual(resolved_klass, recv_klass, resolved_method, sel_method, vtable_index, CHECK); |
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|
1370 } else { |
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|
1371 int itable_index = resolved_method()->itable_index(); |
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|
1372 result.set_interface(resolved_klass, recv_klass, resolved_method, sel_method, itable_index, CHECK); |
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1373 } |
0 | 1374 } |
1375 | |
1376 | |
1377 methodHandle LinkResolver::linktime_resolve_interface_method_or_null( | |
1378 KlassHandle resolved_klass, | |
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|
1379 Symbol* method_name, |
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|
1380 Symbol* method_signature, |
0 | 1381 KlassHandle current_klass, |
1382 bool check_access) { | |
1383 EXCEPTION_MARK; | |
1384 methodHandle method_result; | |
1385 linktime_resolve_interface_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD); | |
1386 if (HAS_PENDING_EXCEPTION) { | |
1387 CLEAR_PENDING_EXCEPTION; | |
1388 return methodHandle(); | |
1389 } else { | |
1390 return method_result; | |
1391 } | |
1392 } | |
1393 | |
1394 methodHandle LinkResolver::linktime_resolve_virtual_method_or_null( | |
1395 KlassHandle resolved_klass, | |
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1396 Symbol* method_name, |
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|
1397 Symbol* method_signature, |
0 | 1398 KlassHandle current_klass, |
1399 bool check_access) { | |
1400 EXCEPTION_MARK; | |
1401 methodHandle method_result; | |
1402 linktime_resolve_virtual_method(method_result, resolved_klass, method_name, method_signature, current_klass, check_access, THREAD); | |
1403 if (HAS_PENDING_EXCEPTION) { | |
1404 CLEAR_PENDING_EXCEPTION; | |
1405 return methodHandle(); | |
1406 } else { | |
1407 return method_result; | |
1408 } | |
1409 } | |
1410 | |
1411 methodHandle LinkResolver::resolve_virtual_call_or_null( | |
1412 KlassHandle receiver_klass, | |
1413 KlassHandle resolved_klass, | |
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|
1414 Symbol* name, |
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|
1415 Symbol* signature, |
0 | 1416 KlassHandle current_klass) { |
1417 EXCEPTION_MARK; | |
1418 CallInfo info; | |
1419 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1420 if (HAS_PENDING_EXCEPTION) { | |
1421 CLEAR_PENDING_EXCEPTION; | |
1422 return methodHandle(); | |
1423 } | |
1424 return info.selected_method(); | |
1425 } | |
1426 | |
1427 methodHandle LinkResolver::resolve_interface_call_or_null( | |
1428 KlassHandle receiver_klass, | |
1429 KlassHandle resolved_klass, | |
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1430 Symbol* name, |
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|
1431 Symbol* signature, |
0 | 1432 KlassHandle current_klass) { |
1433 EXCEPTION_MARK; | |
1434 CallInfo info; | |
1435 resolve_interface_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1436 if (HAS_PENDING_EXCEPTION) { | |
1437 CLEAR_PENDING_EXCEPTION; | |
1438 return methodHandle(); | |
1439 } | |
1440 return info.selected_method(); | |
1441 } | |
1442 | |
1443 int LinkResolver::resolve_virtual_vtable_index( | |
1444 KlassHandle receiver_klass, | |
1445 KlassHandle resolved_klass, | |
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1446 Symbol* name, |
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|
1447 Symbol* signature, |
0 | 1448 KlassHandle current_klass) { |
1449 EXCEPTION_MARK; | |
1450 CallInfo info; | |
1451 resolve_virtual_call(info, Handle(), receiver_klass, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1452 if (HAS_PENDING_EXCEPTION) { | |
1453 CLEAR_PENDING_EXCEPTION; | |
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1454 return Method::invalid_vtable_index; |
0 | 1455 } |
1456 return info.vtable_index(); | |
1457 } | |
1458 | |
1459 methodHandle LinkResolver::resolve_static_call_or_null( | |
1460 KlassHandle resolved_klass, | |
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|
1461 Symbol* name, |
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|
1462 Symbol* signature, |
0 | 1463 KlassHandle current_klass) { |
1464 EXCEPTION_MARK; | |
1465 CallInfo info; | |
1466 resolve_static_call(info, resolved_klass, name, signature, current_klass, true, false, THREAD); | |
1467 if (HAS_PENDING_EXCEPTION) { | |
1468 CLEAR_PENDING_EXCEPTION; | |
1469 return methodHandle(); | |
1470 } | |
1471 return info.selected_method(); | |
1472 } | |
1473 | |
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1474 methodHandle LinkResolver::resolve_special_call_or_null(KlassHandle resolved_klass, Symbol* name, Symbol* signature, |
0 | 1475 KlassHandle current_klass) { |
1476 EXCEPTION_MARK; | |
1477 CallInfo info; | |
1478 resolve_special_call(info, resolved_klass, name, signature, current_klass, true, THREAD); | |
1479 if (HAS_PENDING_EXCEPTION) { | |
1480 CLEAR_PENDING_EXCEPTION; | |
1481 return methodHandle(); | |
1482 } | |
1483 return info.selected_method(); | |
1484 } | |
1485 | |
1486 | |
1487 | |
1488 //------------------------------------------------------------------------------------------------------------------------ | |
1489 // ConstantPool entries | |
1490 | |
1491 void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS) { | |
1492 switch (byte) { | |
1493 case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break; | |
1494 case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break; | |
1495 case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break; | |
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1496 case Bytecodes::_invokehandle : resolve_invokehandle (result, pool, index, CHECK); break; |
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1497 case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break; |
0 | 1498 case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break; |
1499 } | |
1500 return; | |
1501 } | |
1502 | |
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1503 void LinkResolver::resolve_pool(KlassHandle& resolved_klass, Symbol*& method_name, Symbol*& method_signature, |
0 | 1504 KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS) { |
1505 // resolve klass | |
1506 resolve_klass(resolved_klass, pool, index, CHECK); | |
1507 | |
1508 // Get name, signature, and static klass | |
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1509 method_name = pool->name_ref_at(index); |
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|
1510 method_signature = pool->signature_ref_at(index); |
0 | 1511 current_klass = KlassHandle(THREAD, pool->pool_holder()); |
1512 } | |
1513 | |
1514 | |
1515 void LinkResolver::resolve_invokestatic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { | |
1516 KlassHandle resolved_klass; | |
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|
1517 Symbol* method_name = NULL; |
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|
1518 Symbol* method_signature = NULL; |
0 | 1519 KlassHandle current_klass; |
1520 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
1521 resolve_static_call(result, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); | |
1522 } | |
1523 | |
1524 | |
1525 void LinkResolver::resolve_invokespecial(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { | |
1526 KlassHandle resolved_klass; | |
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1527 Symbol* method_name = NULL; |
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|
1528 Symbol* method_signature = NULL; |
0 | 1529 KlassHandle current_klass; |
1530 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
1531 resolve_special_call(result, resolved_klass, method_name, method_signature, current_klass, true, CHECK); | |
1532 } | |
1533 | |
1534 | |
1535 void LinkResolver::resolve_invokevirtual(CallInfo& result, Handle recv, | |
1536 constantPoolHandle pool, int index, | |
1537 TRAPS) { | |
1538 | |
1539 KlassHandle resolved_klass; | |
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1540 Symbol* method_name = NULL; |
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|
1541 Symbol* method_signature = NULL; |
0 | 1542 KlassHandle current_klass; |
1543 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
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1544 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); |
0 | 1545 resolve_virtual_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
1546 } | |
1547 | |
1548 | |
1549 void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS) { | |
1550 KlassHandle resolved_klass; | |
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|
1551 Symbol* method_name = NULL; |
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|
1552 Symbol* method_signature = NULL; |
0 | 1553 KlassHandle current_klass; |
1554 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); | |
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1555 KlassHandle recvrKlass (THREAD, recv.is_null() ? (Klass*)NULL : recv->klass()); |
0 | 1556 resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK); |
1557 } | |
1558 | |
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|
1559 |
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1560 void LinkResolver::resolve_invokehandle(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { |
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|
1561 assert(EnableInvokeDynamic, ""); |
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|
1562 // This guy is reached from InterpreterRuntime::resolve_invokehandle. |
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|
1563 KlassHandle resolved_klass; |
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|
1564 Symbol* method_name = NULL; |
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|
1565 Symbol* method_signature = NULL; |
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|
1566 KlassHandle current_klass; |
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|
1567 resolve_pool(resolved_klass, method_name, method_signature, current_klass, pool, index, CHECK); |
9082 | 1568 if (TraceMethodHandles) { |
1569 ResourceMark rm(THREAD); | |
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1570 tty->print_cr("resolve_invokehandle %s %s", method_name->as_C_string(), method_signature->as_C_string()); |
9082 | 1571 } |
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1572 resolve_handle_call(result, resolved_klass, method_name, method_signature, current_klass, CHECK); |
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1573 } |
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1574 |
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1575 void LinkResolver::resolve_handle_call(CallInfo& result, KlassHandle resolved_klass, |
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1576 Symbol* method_name, Symbol* method_signature, |
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|
1577 KlassHandle current_klass, |
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1578 TRAPS) { |
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1579 // JSR 292: this must be an implicitly generated method MethodHandle.invokeExact(*...) or similar |
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|
1580 assert(resolved_klass() == SystemDictionary::MethodHandle_klass(), ""); |
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|
1581 assert(MethodHandles::is_signature_polymorphic_name(method_name), ""); |
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|
1582 methodHandle resolved_method; |
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1583 Handle resolved_appendix; |
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1584 Handle resolved_method_type; |
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1585 lookup_polymorphic_method(resolved_method, resolved_klass, |
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1586 method_name, method_signature, |
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1587 current_klass, &resolved_appendix, &resolved_method_type, CHECK); |
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1588 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK); |
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1589 } |
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1590 |
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1591 |
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1592 void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) { |
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1593 assert(EnableInvokeDynamic, ""); |
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1594 |
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1595 //resolve_pool(<resolved_klass>, method_name, method_signature, current_klass, pool, index, CHECK); |
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1596 Symbol* method_name = pool->name_ref_at(index); |
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1597 Symbol* method_signature = pool->signature_ref_at(index); |
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1598 KlassHandle current_klass = KlassHandle(THREAD, pool->pool_holder()); |
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1599 |
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1600 // Resolve the bootstrap specifier (BSM + optional arguments). |
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1601 Handle bootstrap_specifier; |
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1602 // Check if CallSite has been bound already: |
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1603 ConstantPoolCacheEntry* cpce = pool->invokedynamic_cp_cache_entry_at(index); |
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1604 if (cpce->is_f1_null()) { |
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1605 int pool_index = cpce->constant_pool_index(); |
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1606 oop bsm_info = pool->resolve_bootstrap_specifier_at(pool_index, CHECK); |
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1607 assert(bsm_info != NULL, ""); |
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1608 // FIXME: Cache this once per BootstrapMethods entry, not once per CONSTANT_InvokeDynamic. |
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1609 bootstrap_specifier = Handle(THREAD, bsm_info); |
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1610 } |
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1611 if (!cpce->is_f1_null()) { |
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1612 methodHandle method( THREAD, cpce->f1_as_method()); |
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1613 Handle appendix( THREAD, cpce->appendix_if_resolved(pool)); |
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1614 Handle method_type(THREAD, cpce->method_type_if_resolved(pool)); |
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1615 result.set_handle(method, appendix, method_type, CHECK); |
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1616 return; |
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1617 } |
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1618 |
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1619 if (TraceMethodHandles) { |
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1620 ResourceMark rm(THREAD); |
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1621 tty->print_cr("resolve_invokedynamic #%d %s %s", |
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1622 ConstantPool::decode_invokedynamic_index(index), |
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1623 method_name->as_C_string(), method_signature->as_C_string()); |
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1624 tty->print(" BSM info: "); bootstrap_specifier->print(); |
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1625 } |
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1626 |
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1627 resolve_dynamic_call(result, bootstrap_specifier, method_name, method_signature, current_klass, CHECK); |
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1628 } |
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1629 |
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1630 void LinkResolver::resolve_dynamic_call(CallInfo& result, |
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1631 Handle bootstrap_specifier, |
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1632 Symbol* method_name, Symbol* method_signature, |
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1633 KlassHandle current_klass, |
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1634 TRAPS) { |
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1635 // JSR 292: this must resolve to an implicitly generated method MH.linkToCallSite(*...) |
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1636 // The appendix argument is likely to be a freshly-created CallSite. |
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1637 Handle resolved_appendix; |
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1638 Handle resolved_method_type; |
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1639 methodHandle resolved_method = |
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1640 SystemDictionary::find_dynamic_call_site_invoker(current_klass, |
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1641 bootstrap_specifier, |
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1642 method_name, method_signature, |
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1643 &resolved_appendix, |
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1644 &resolved_method_type, |
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1645 THREAD); |
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1646 if (HAS_PENDING_EXCEPTION) { |
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1647 if (TraceMethodHandles) { |
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1648 tty->print_cr("invokedynamic throws BSME for "INTPTR_FORMAT, (void *)PENDING_EXCEPTION); |
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1649 PENDING_EXCEPTION->print(); |
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1650 } |
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1651 if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) { |
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1652 // throw these guys, since they are already wrapped |
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1653 return; |
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1654 } |
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1655 if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) { |
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1656 // intercept only LinkageErrors which might have failed to wrap |
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1657 return; |
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1658 } |
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1659 // See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS. |
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1660 Handle nested_exception(THREAD, PENDING_EXCEPTION); |
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1661 CLEAR_PENDING_EXCEPTION; |
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1662 THROW_CAUSE(vmSymbols::java_lang_BootstrapMethodError(), nested_exception) |
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1663 } |
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1664 result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK); |
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1665 } |
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1666 |
0 | 1667 //------------------------------------------------------------------------------------------------------------------------ |
1668 #ifndef PRODUCT | |
1669 | |
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1670 void CallInfo::print() { |
0 | 1671 ResourceMark rm; |
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1672 const char* kindstr = "unknown"; |
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1673 switch (_call_kind) { |
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1674 case direct_call: kindstr = "direct"; break; |
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1675 case vtable_call: kindstr = "vtable"; break; |
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1676 case itable_call: kindstr = "itable"; break; |
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1677 } |
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1678 tty->print_cr("Call %s@%d %s", kindstr, _call_index, |
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1679 _resolved_method.is_null() ? "(none)" : _resolved_method->name_and_sig_as_C_string()); |
0 | 1680 } |
1681 | |
1682 #endif |