author | mockner |
Wed, 23 Dec 2015 20:14:25 +0000 | |
changeset 35220 | a421e4a0f311 |
parent 35218 | 00aa934a1a20 |
parent 35219 | b9ef87beb87c |
child 35232 | 76aed99c0ddd |
child 35492 | c8c0273e6b91 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "precompiled.hpp" |
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#include "classfile/classFileParser.hpp" |
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#include "classfile/classFileStream.hpp" |
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#include "classfile/classLoader.hpp" |
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#include "classfile/classLoaderData.inline.hpp" |
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#include "classfile/defaultMethods.hpp" |
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#include "classfile/javaClasses.inline.hpp" |
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#include "classfile/symbolTable.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/verificationType.hpp" |
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#include "classfile/verifier.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "gc/shared/gcLocker.hpp" |
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#include "memory/allocation.hpp" |
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#include "memory/metadataFactory.hpp" |
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#include "memory/oopFactory.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "memory/universe.inline.hpp" |
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#include "oops/annotations.hpp" |
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#include "oops/fieldStreams.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/instanceMirrorKlass.hpp" |
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#include "oops/klass.inline.hpp" |
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#include "oops/klassVtable.hpp" |
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#include "oops/metadata.hpp" |
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#include "oops/method.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "oops/symbol.hpp" |
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#include "prims/jvm.h" |
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#include "prims/jvmtiExport.hpp" |
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#include "prims/jvmtiThreadState.hpp" |
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#include "runtime/javaCalls.hpp" |
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#include "runtime/perfData.hpp" |
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#include "runtime/reflection.hpp" |
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#include "runtime/signature.hpp" |
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#include "runtime/timer.hpp" |
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#include "services/classLoadingService.hpp" |
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#include "services/threadService.hpp" |
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#include "trace/traceMacros.hpp" |
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#include "utilities/array.hpp" |
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#include "utilities/exceptions.hpp" |
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#include "utilities/globalDefinitions.hpp" |
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#include "utilities/macros.hpp" |
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#include "utilities/ostream.hpp" |
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#include "utilities/resourceHash.hpp" |
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#if INCLUDE_CDS |
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#include "classfile/systemDictionaryShared.hpp" |
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#endif |
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// We generally try to create the oops directly when parsing, rather than |
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// allocating temporary data structures and copying the bytes twice. A |
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// temporary area is only needed when parsing utf8 entries in the constant |
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// pool and when parsing line number tables. |
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// We add assert in debug mode when class format is not checked. |
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#define JAVA_CLASSFILE_MAGIC 0xCAFEBABE |
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#define JAVA_MIN_SUPPORTED_VERSION 45 |
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14079 | 82 |
#define JAVA_MAX_SUPPORTED_VERSION 52 |
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#define JAVA_MAX_SUPPORTED_MINOR_VERSION 0 |
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// Used for two backward compatibility reasons: |
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// - to check for new additions to the class file format in JDK1.5 |
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// - to check for bug fixes in the format checker in JDK1.5 |
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#define JAVA_1_5_VERSION 49 |
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// Used for backward compatibility reasons: |
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// - to check for javac bug fixes that happened after 1.5 |
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// - also used as the max version when running in jdk6 |
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#define JAVA_6_VERSION 50 |
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// Used for backward compatibility reasons: |
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// - to check NameAndType_info signatures more aggressively |
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// - to disallow argument and require ACC_STATIC for <clinit> methods |
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#define JAVA_7_VERSION 51 |
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14385 | 100 |
// Extension method support. |
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#define JAVA_8_VERSION 52 |
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||
34666 | 103 |
enum { LegalClass, LegalField, LegalMethod }; // used to verify unqualified names |
104 |
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void ClassFileParser::parse_constant_pool_entries(const ClassFileStream* const stream, |
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ConstantPool* cp, |
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const int length, |
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TRAPS) { |
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assert(stream != NULL, "invariant"); |
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assert(cp != NULL, "invariant"); |
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// Use a local copy of ClassFileStream. It helps the C++ compiler to optimize |
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// this function (_current can be allocated in a register, with scalar |
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// replacement of aggregates). The _current pointer is copied back to |
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// stream() when this function returns. DON'T call another method within |
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// this method that uses stream(). |
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const ClassFileStream cfs1 = *stream; |
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const ClassFileStream* const cfs = &cfs1; |
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assert(cfs->allocated_on_stack(), "should be local"); |
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debug_only(const u1* const old_current = stream->current();) |
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// Used for batching symbol allocations. |
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const char* names[SymbolTable::symbol_alloc_batch_size]; |
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int lengths[SymbolTable::symbol_alloc_batch_size]; |
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int indices[SymbolTable::symbol_alloc_batch_size]; |
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127 |
unsigned int hashValues[SymbolTable::symbol_alloc_batch_size]; |
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int names_count = 0; |
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129 |
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130 |
// parsing Index 0 is unused |
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for (int index = 1; index < length; index++) { |
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// Each of the following case guarantees one more byte in the stream |
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// for the following tag or the access_flags following constant pool, |
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// so we don't need bounds-check for reading tag. |
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34666 | 135 |
const u1 tag = cfs->get_u1_fast(); |
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switch (tag) { |
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case JVM_CONSTANT_Class : { |
138 |
cfs->guarantee_more(3, CHECK); // name_index, tag/access_flags |
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const u2 name_index = cfs->get_u2_fast(); |
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140 |
cp->klass_index_at_put(index, name_index); |
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break; |
34666 | 142 |
} |
143 |
case JVM_CONSTANT_Fieldref: { |
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144 |
cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags |
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145 |
const u2 class_index = cfs->get_u2_fast(); |
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146 |
const u2 name_and_type_index = cfs->get_u2_fast(); |
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cp->field_at_put(index, class_index, name_and_type_index); |
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break; |
34666 | 149 |
} |
150 |
case JVM_CONSTANT_Methodref: { |
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151 |
cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags |
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152 |
const u2 class_index = cfs->get_u2_fast(); |
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153 |
const u2 name_and_type_index = cfs->get_u2_fast(); |
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154 |
cp->method_at_put(index, class_index, name_and_type_index); |
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1 | 155 |
break; |
34666 | 156 |
} |
157 |
case JVM_CONSTANT_InterfaceMethodref: { |
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158 |
cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags |
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159 |
const u2 class_index = cfs->get_u2_fast(); |
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160 |
const u2 name_and_type_index = cfs->get_u2_fast(); |
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161 |
cp->interface_method_at_put(index, class_index, name_and_type_index); |
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1 | 162 |
break; |
34666 | 163 |
} |
164 |
case JVM_CONSTANT_String : { |
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165 |
cfs->guarantee_more(3, CHECK); // string_index, tag/access_flags |
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166 |
const u2 string_index = cfs->get_u2_fast(); |
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167 |
cp->string_index_at_put(index, string_index); |
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1 | 168 |
break; |
34666 | 169 |
} |
5882 | 170 |
case JVM_CONSTANT_MethodHandle : |
34666 | 171 |
case JVM_CONSTANT_MethodType: { |
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if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
5882 | 173 |
classfile_parse_error( |
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"Class file version does not support constant tag %u in class file %s", |
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tag, CHECK); |
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176 |
} |
5882 | 177 |
if (tag == JVM_CONSTANT_MethodHandle) { |
178 |
cfs->guarantee_more(4, CHECK); // ref_kind, method_index, tag/access_flags |
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34666 | 179 |
const u1 ref_kind = cfs->get_u1_fast(); |
180 |
const u2 method_index = cfs->get_u2_fast(); |
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181 |
cp->method_handle_index_at_put(index, ref_kind, method_index); |
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182 |
} |
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183 |
else if (tag == JVM_CONSTANT_MethodType) { |
|
5882 | 184 |
cfs->guarantee_more(3, CHECK); // signature_index, tag/access_flags |
34666 | 185 |
const u2 signature_index = cfs->get_u2_fast(); |
186 |
cp->method_type_index_at_put(index, signature_index); |
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187 |
} |
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188 |
else { |
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5882 | 189 |
ShouldNotReachHere(); |
190 |
} |
|
191 |
break; |
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34666 | 192 |
} |
193 |
case JVM_CONSTANT_InvokeDynamic : { |
|
194 |
if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
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195 |
classfile_parse_error( |
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"Class file version does not support constant tag %u in class file %s", |
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197 |
tag, CHECK); |
34666 | 198 |
} |
199 |
cfs->guarantee_more(5, CHECK); // bsm_index, nt, tag/access_flags |
|
200 |
const u2 bootstrap_specifier_index = cfs->get_u2_fast(); |
|
201 |
const u2 name_and_type_index = cfs->get_u2_fast(); |
|
202 |
if (_max_bootstrap_specifier_index < (int) bootstrap_specifier_index) { |
|
203 |
_max_bootstrap_specifier_index = (int) bootstrap_specifier_index; // collect for later |
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204 |
} |
34666 | 205 |
cp->invoke_dynamic_at_put(index, bootstrap_specifier_index, name_and_type_index); |
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206 |
break; |
34666 | 207 |
} |
208 |
case JVM_CONSTANT_Integer: { |
|
209 |
cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags |
|
210 |
const u4 bytes = cfs->get_u4_fast(); |
|
211 |
cp->int_at_put(index, (jint)bytes); |
|
1 | 212 |
break; |
34666 | 213 |
} |
214 |
case JVM_CONSTANT_Float: { |
|
215 |
cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags |
|
216 |
const u4 bytes = cfs->get_u4_fast(); |
|
217 |
cp->float_at_put(index, *(jfloat*)&bytes); |
|
1 | 218 |
break; |
34666 | 219 |
} |
220 |
case JVM_CONSTANT_Long: { |
|
1 | 221 |
// A mangled type might cause you to overrun allocated memory |
34666 | 222 |
guarantee_property(index + 1 < length, |
1 | 223 |
"Invalid constant pool entry %u in class file %s", |
34666 | 224 |
index, |
225 |
CHECK); |
|
226 |
cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags |
|
227 |
const u8 bytes = cfs->get_u8_fast(); |
|
228 |
cp->long_at_put(index, bytes); |
|
1 | 229 |
index++; // Skip entry following eigth-byte constant, see JVM book p. 98 |
230 |
break; |
|
34666 | 231 |
} |
232 |
case JVM_CONSTANT_Double: { |
|
1 | 233 |
// A mangled type might cause you to overrun allocated memory |
234 |
guarantee_property(index+1 < length, |
|
235 |
"Invalid constant pool entry %u in class file %s", |
|
34666 | 236 |
index, |
237 |
CHECK); |
|
238 |
cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags |
|
239 |
const u8 bytes = cfs->get_u8_fast(); |
|
240 |
cp->double_at_put(index, *(jdouble*)&bytes); |
|
1 | 241 |
index++; // Skip entry following eigth-byte constant, see JVM book p. 98 |
242 |
break; |
|
34666 | 243 |
} |
244 |
case JVM_CONSTANT_NameAndType: { |
|
245 |
cfs->guarantee_more(5, CHECK); // name_index, signature_index, tag/access_flags |
|
246 |
const u2 name_index = cfs->get_u2_fast(); |
|
247 |
const u2 signature_index = cfs->get_u2_fast(); |
|
248 |
cp->name_and_type_at_put(index, name_index, signature_index); |
|
249 |
break; |
|
250 |
} |
|
251 |
case JVM_CONSTANT_Utf8 : { |
|
252 |
cfs->guarantee_more(2, CHECK); // utf8_length |
|
253 |
u2 utf8_length = cfs->get_u2_fast(); |
|
254 |
const u1* utf8_buffer = cfs->get_u1_buffer(); |
|
255 |
assert(utf8_buffer != NULL, "null utf8 buffer"); |
|
256 |
// Got utf8 string, guarantee utf8_length+1 bytes, set stream position forward. |
|
257 |
cfs->guarantee_more(utf8_length+1, CHECK); // utf8 string, tag/access_flags |
|
258 |
cfs->skip_u1_fast(utf8_length); |
|
259 |
||
260 |
// Before storing the symbol, make sure it's legal |
|
261 |
if (_need_verify) { |
|
262 |
verify_legal_utf8(utf8_buffer, utf8_length, CHECK); |
|
263 |
} |
|
264 |
||
265 |
if (has_cp_patch_at(index)) { |
|
266 |
Handle patch = clear_cp_patch_at(index); |
|
267 |
guarantee_property(java_lang_String::is_instance(patch()), |
|
268 |
"Illegal utf8 patch at %d in class file %s", |
|
269 |
index, |
|
270 |
CHECK); |
|
271 |
const char* const str = java_lang_String::as_utf8_string(patch()); |
|
272 |
// (could use java_lang_String::as_symbol instead, but might as well batch them) |
|
273 |
utf8_buffer = (const u1*) str; |
|
274 |
utf8_length = (int) strlen(str); |
|
275 |
} |
|
276 |
||
277 |
unsigned int hash; |
|
278 |
Symbol* const result = SymbolTable::lookup_only((const char*)utf8_buffer, |
|
279 |
utf8_length, |
|
280 |
hash); |
|
281 |
if (result == NULL) { |
|
282 |
names[names_count] = (const char*)utf8_buffer; |
|
283 |
lengths[names_count] = utf8_length; |
|
284 |
indices[names_count] = index; |
|
285 |
hashValues[names_count++] = hash; |
|
286 |
if (names_count == SymbolTable::symbol_alloc_batch_size) { |
|
287 |
SymbolTable::new_symbols(_loader_data, |
|
288 |
cp, |
|
289 |
names_count, |
|
290 |
names, |
|
291 |
lengths, |
|
292 |
indices, |
|
293 |
hashValues, |
|
294 |
CHECK); |
|
295 |
names_count = 0; |
|
296 |
} |
|
297 |
} else { |
|
298 |
cp->symbol_at_put(index, result); |
|
1 | 299 |
} |
300 |
break; |
|
34666 | 301 |
} |
302 |
default: { |
|
303 |
classfile_parse_error("Unknown constant tag %u in class file %s", |
|
304 |
tag, |
|
305 |
CHECK); |
|
1 | 306 |
break; |
34666 | 307 |
} |
308 |
} // end of switch(tag) |
|
309 |
} // end of for |
|
1 | 310 |
|
311 |
// Allocate the remaining symbols |
|
312 |
if (names_count > 0) { |
|
34666 | 313 |
SymbolTable::new_symbols(_loader_data, |
314 |
cp, |
|
315 |
names_count, |
|
316 |
names, |
|
317 |
lengths, |
|
318 |
indices, |
|
319 |
hashValues, |
|
320 |
CHECK); |
|
1 | 321 |
} |
322 |
||
34666 | 323 |
// Copy _current pointer of local copy back to stream. |
324 |
assert(stream->current() == old_current, "non-exclusive use of stream"); |
|
325 |
stream->set_current(cfs1.current()); |
|
326 |
||
1 | 327 |
} |
328 |
||
34666 | 329 |
static inline bool valid_cp_range(int index, int length) { |
330 |
return (index > 0 && index < length); |
|
331 |
} |
|
332 |
||
333 |
static inline Symbol* check_symbol_at(const ConstantPool* cp, int index) { |
|
334 |
assert(cp != NULL, "invariant"); |
|
335 |
if (valid_cp_range(index, cp->length()) && cp->tag_at(index).is_utf8()) { |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
336 |
return cp->symbol_at(index); |
34666 | 337 |
} |
338 |
return NULL; |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
339 |
} |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
340 |
|
33604
ad1cd9269bd4
8139116: Fixes for warning "format not a string literal"
goetz
parents:
33602
diff
changeset
|
341 |
#ifdef ASSERT |
29201
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
342 |
PRAGMA_DIAG_PUSH |
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
343 |
PRAGMA_FORMAT_NONLITERAL_IGNORED |
34666 | 344 |
void ClassFileParser::report_assert_property_failure(const char* msg, TRAPS) const { |
29201
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
345 |
ResourceMark rm(THREAD); |
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32824
diff
changeset
|
346 |
fatal(msg, _class_name->as_C_string()); |
29201
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
347 |
} |
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
348 |
|
34666 | 349 |
void ClassFileParser::report_assert_property_failure(const char* msg, |
350 |
int index, |
|
351 |
TRAPS) const { |
|
29201
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
352 |
ResourceMark rm(THREAD); |
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32824
diff
changeset
|
353 |
fatal(msg, index, _class_name->as_C_string()); |
29201
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
354 |
} |
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
355 |
PRAGMA_DIAG_POP |
33604
ad1cd9269bd4
8139116: Fixes for warning "format not a string literal"
goetz
parents:
33602
diff
changeset
|
356 |
#endif |
29201
fee2bbb2ec1d
8073389: Remove the include of resourceArea.hpp from classFileParser.hpp
stefank
parents:
29081
diff
changeset
|
357 |
|
34666 | 358 |
void ClassFileParser::parse_constant_pool(const ClassFileStream* const stream, |
359 |
ConstantPool* const cp, |
|
360 |
const int length, |
|
361 |
TRAPS) { |
|
362 |
assert(cp != NULL, "invariant"); |
|
363 |
assert(stream != NULL, "invariant"); |
|
1 | 364 |
|
365 |
// parsing constant pool entries |
|
34666 | 366 |
parse_constant_pool_entries(stream, cp, length, CHECK); |
1 | 367 |
|
368 |
int index = 1; // declared outside of loops for portability |
|
369 |
||
34666 | 370 |
// first verification pass - validate cross references |
371 |
// and fixup class and string constants |
|
1 | 372 |
for (index = 1; index < length; index++) { // Index 0 is unused |
34666 | 373 |
const jbyte tag = cp->tag_at(index).value(); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
374 |
switch (tag) { |
34666 | 375 |
case JVM_CONSTANT_Class: { |
1 | 376 |
ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present |
377 |
break; |
|
34666 | 378 |
} |
379 |
case JVM_CONSTANT_Fieldref: |
|
1 | 380 |
// fall through |
34666 | 381 |
case JVM_CONSTANT_Methodref: |
1 | 382 |
// fall through |
34666 | 383 |
case JVM_CONSTANT_InterfaceMethodref: { |
1 | 384 |
if (!_need_verify) break; |
34666 | 385 |
const int klass_ref_index = cp->klass_ref_index_at(index); |
386 |
const int name_and_type_ref_index = cp->name_and_type_ref_index_at(index); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
387 |
check_property(valid_klass_reference_at(klass_ref_index), |
1 | 388 |
"Invalid constant pool index %u in class file %s", |
34666 | 389 |
klass_ref_index, CHECK); |
1 | 390 |
check_property(valid_cp_range(name_and_type_ref_index, length) && |
34666 | 391 |
cp->tag_at(name_and_type_ref_index).is_name_and_type(), |
392 |
"Invalid constant pool index %u in class file %s", |
|
393 |
name_and_type_ref_index, CHECK); |
|
1 | 394 |
break; |
395 |
} |
|
34666 | 396 |
case JVM_CONSTANT_String: { |
1 | 397 |
ShouldNotReachHere(); // Only JVM_CONSTANT_StringIndex should be present |
398 |
break; |
|
34666 | 399 |
} |
400 |
case JVM_CONSTANT_Integer: |
|
1 | 401 |
break; |
34666 | 402 |
case JVM_CONSTANT_Float: |
1 | 403 |
break; |
34666 | 404 |
case JVM_CONSTANT_Long: |
405 |
case JVM_CONSTANT_Double: { |
|
1 | 406 |
index++; |
407 |
check_property( |
|
408 |
(index < length && cp->tag_at(index).is_invalid()), |
|
409 |
"Improper constant pool long/double index %u in class file %s", |
|
34666 | 410 |
index, CHECK); |
1 | 411 |
break; |
412 |
} |
|
34666 | 413 |
case JVM_CONSTANT_NameAndType: { |
414 |
if (!_need_verify) break; |
|
415 |
const int name_ref_index = cp->name_ref_index_at(index); |
|
416 |
const int signature_ref_index = cp->signature_ref_index_at(index); |
|
417 |
check_property(valid_symbol_at(name_ref_index), |
|
418 |
"Invalid constant pool index %u in class file %s", |
|
419 |
name_ref_index, CHECK); |
|
420 |
check_property(valid_symbol_at(signature_ref_index), |
|
421 |
"Invalid constant pool index %u in class file %s", |
|
422 |
signature_ref_index, CHECK); |
|
1 | 423 |
break; |
34666 | 424 |
} |
425 |
case JVM_CONSTANT_Utf8: |
|
426 |
break; |
|
427 |
case JVM_CONSTANT_UnresolvedClass: // fall-through |
|
428 |
case JVM_CONSTANT_UnresolvedClassInError: { |
|
1 | 429 |
ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present |
430 |
break; |
|
34666 | 431 |
} |
432 |
case JVM_CONSTANT_ClassIndex: { |
|
433 |
const int class_index = cp->klass_index_at(index); |
|
434 |
check_property(valid_symbol_at(class_index), |
|
435 |
"Invalid constant pool index %u in class file %s", |
|
436 |
class_index, CHECK); |
|
437 |
cp->unresolved_klass_at_put(index, cp->symbol_at(class_index)); |
|
1 | 438 |
break; |
34666 | 439 |
} |
440 |
case JVM_CONSTANT_StringIndex: { |
|
441 |
const int string_index = cp->string_index_at(index); |
|
442 |
check_property(valid_symbol_at(string_index), |
|
443 |
"Invalid constant pool index %u in class file %s", |
|
444 |
string_index, CHECK); |
|
445 |
Symbol* const sym = cp->symbol_at(string_index); |
|
446 |
cp->unresolved_string_at_put(index, sym); |
|
1 | 447 |
break; |
34666 | 448 |
} |
449 |
case JVM_CONSTANT_MethodHandle: { |
|
450 |
const int ref_index = cp->method_handle_index_at(index); |
|
451 |
check_property(valid_cp_range(ref_index, length), |
|
452 |
"Invalid constant pool index %u in class file %s", |
|
453 |
ref_index, CHECK); |
|
454 |
const constantTag tag = cp->tag_at(ref_index); |
|
455 |
const int ref_kind = cp->method_handle_ref_kind_at(index); |
|
456 |
||
457 |
switch (ref_kind) { |
|
5882 | 458 |
case JVM_REF_getField: |
459 |
case JVM_REF_getStatic: |
|
460 |
case JVM_REF_putField: |
|
34666 | 461 |
case JVM_REF_putStatic: { |
5882 | 462 |
check_property( |
463 |
tag.is_field(), |
|
464 |
"Invalid constant pool index %u in class file %s (not a field)", |
|
34666 | 465 |
ref_index, CHECK); |
5882 | 466 |
break; |
34666 | 467 |
} |
5882 | 468 |
case JVM_REF_invokeVirtual: |
34666 | 469 |
case JVM_REF_newInvokeSpecial: { |
5882 | 470 |
check_property( |
471 |
tag.is_method(), |
|
472 |
"Invalid constant pool index %u in class file %s (not a method)", |
|
34666 | 473 |
ref_index, CHECK); |
5882 | 474 |
break; |
34666 | 475 |
} |
17024
49cbeca23983
8006267: InterfaceMethod_ref should allow invokestatic and invokespecial
bharadwaj
parents:
16692
diff
changeset
|
476 |
case JVM_REF_invokeStatic: |
34666 | 477 |
case JVM_REF_invokeSpecial: { |
478 |
check_property( |
|
479 |
tag.is_method() || |
|
480 |
((_major_version >= JAVA_8_VERSION) && tag.is_interface_method()), |
|
481 |
"Invalid constant pool index %u in class file %s (not a method)", |
|
482 |
ref_index, CHECK); |
|
483 |
break; |
|
484 |
} |
|
485 |
case JVM_REF_invokeInterface: { |
|
5882 | 486 |
check_property( |
487 |
tag.is_interface_method(), |
|
488 |
"Invalid constant pool index %u in class file %s (not an interface method)", |
|
34666 | 489 |
ref_index, CHECK); |
5882 | 490 |
break; |
34666 | 491 |
} |
492 |
default: { |
|
5882 | 493 |
classfile_parse_error( |
494 |
"Bad method handle kind at constant pool index %u in class file %s", |
|
34666 | 495 |
index, CHECK); |
5882 | 496 |
} |
34666 | 497 |
} // switch(refkind) |
498 |
// Keep the ref_index unchanged. It will be indirected at link-time. |
|
5882 | 499 |
break; |
34666 | 500 |
} // case MethodHandle |
501 |
case JVM_CONSTANT_MethodType: { |
|
502 |
const int ref_index = cp->method_type_index_at(index); |
|
503 |
check_property(valid_symbol_at(ref_index), |
|
504 |
"Invalid constant pool index %u in class file %s", |
|
505 |
ref_index, CHECK); |
|
5882 | 506 |
break; |
34666 | 507 |
} |
508 |
case JVM_CONSTANT_InvokeDynamic: { |
|
509 |
const int name_and_type_ref_index = |
|
510 |
cp->invoke_dynamic_name_and_type_ref_index_at(index); |
|
511 |
||
512 |
check_property(valid_cp_range(name_and_type_ref_index, length) && |
|
513 |
cp->tag_at(name_and_type_ref_index).is_name_and_type(), |
|
514 |
"Invalid constant pool index %u in class file %s", |
|
515 |
name_and_type_ref_index, CHECK); |
|
516 |
// bootstrap specifier index must be checked later, |
|
517 |
// when BootstrapMethods attr is available |
|
518 |
break; |
|
519 |
} |
|
520 |
default: { |
|
33105
294e48b4f704
8080775: Better argument formatting for assert() and friends
david
parents:
32824
diff
changeset
|
521 |
fatal("bad constant pool tag value %u", cp->tag_at(index).value()); |
1 | 522 |
ShouldNotReachHere(); |
523 |
break; |
|
34666 | 524 |
} |
525 |
} // switch(tag) |
|
1 | 526 |
} // end of for |
527 |
||
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
528 |
if (_cp_patches != NULL) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
529 |
// need to treat this_class specially... |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
530 |
int this_class_index; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
531 |
{ |
34666 | 532 |
stream->guarantee_more(8, CHECK); // flags, this_class, super_class, infs_len |
533 |
const u1* const mark = stream->current(); |
|
534 |
stream->skip_u2_fast(1); // skip flags |
|
535 |
this_class_index = stream->get_u2_fast(); |
|
536 |
stream->set_current(mark); // revert to mark |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
537 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
538 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
539 |
for (index = 1; index < length; index++) { // Index 0 is unused |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
540 |
if (has_cp_patch_at(index)) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
541 |
guarantee_property(index != this_class_index, |
34666 | 542 |
"Illegal constant pool patch to self at %d in class file %s", |
543 |
index, CHECK); |
|
544 |
patch_constant_pool(cp, index, cp_patch_at(index), CHECK); |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
545 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
546 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
547 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
548 |
|
1 | 549 |
if (!_need_verify) { |
34666 | 550 |
return; |
1 | 551 |
} |
552 |
||
553 |
// second verification pass - checks the strings are of the right format. |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
554 |
// but not yet to the other entries |
1 | 555 |
for (index = 1; index < length; index++) { |
34666 | 556 |
const jbyte tag = cp->tag_at(index).value(); |
1 | 557 |
switch (tag) { |
558 |
case JVM_CONSTANT_UnresolvedClass: { |
|
34666 | 559 |
const Symbol* const class_name = cp->klass_name_at(index); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
560 |
// check the name, even if _cp_patches will overwrite it |
34666 | 561 |
verify_legal_class_name(class_name, CHECK); |
1 | 562 |
break; |
563 |
} |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
564 |
case JVM_CONSTANT_NameAndType: { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
565 |
if (_need_verify && _major_version >= JAVA_7_VERSION) { |
34666 | 566 |
const int sig_index = cp->signature_ref_index_at(index); |
567 |
const int name_index = cp->name_ref_index_at(index); |
|
568 |
const Symbol* const name = cp->symbol_at(name_index); |
|
569 |
const Symbol* const sig = cp->symbol_at(sig_index); |
|
35218
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
570 |
guarantee_property(sig->utf8_length() != 0, |
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
571 |
"Illegal zero length constant pool entry at %d in class %s", |
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
572 |
sig_index, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
573 |
if (sig->byte_at(0) == JVM_SIGNATURE_FUNC) { |
34666 | 574 |
verify_legal_method_signature(name, sig, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
575 |
} else { |
34666 | 576 |
verify_legal_field_signature(name, sig, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
577 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
578 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
579 |
break; |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
580 |
} |
9117
30d757743e56
7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents:
9116
diff
changeset
|
581 |
case JVM_CONSTANT_InvokeDynamic: |
1 | 582 |
case JVM_CONSTANT_Fieldref: |
583 |
case JVM_CONSTANT_Methodref: |
|
584 |
case JVM_CONSTANT_InterfaceMethodref: { |
|
34666 | 585 |
const int name_and_type_ref_index = |
586 |
cp->name_and_type_ref_index_at(index); |
|
1 | 587 |
// already verified to be utf8 |
34666 | 588 |
const int name_ref_index = |
589 |
cp->name_ref_index_at(name_and_type_ref_index); |
|
1 | 590 |
// already verified to be utf8 |
34666 | 591 |
const int signature_ref_index = |
592 |
cp->signature_ref_index_at(name_and_type_ref_index); |
|
593 |
const Symbol* const name = cp->symbol_at(name_ref_index); |
|
594 |
const Symbol* const signature = cp->symbol_at(signature_ref_index); |
|
1 | 595 |
if (tag == JVM_CONSTANT_Fieldref) { |
34666 | 596 |
verify_legal_field_name(name, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
597 |
if (_need_verify && _major_version >= JAVA_7_VERSION) { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
598 |
// Signature is verified above, when iterating NameAndType_info. |
35218
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
599 |
// Need only to be sure it's non-zero length and the right type. |
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
600 |
if (signature->utf8_length() == 0 || |
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
601 |
signature->byte_at(0) == JVM_SIGNATURE_FUNC) { |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
602 |
throwIllegalSignature( |
34666 | 603 |
"Field", name, signature, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
604 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
605 |
} else { |
34666 | 606 |
verify_legal_field_signature(name, signature, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
607 |
} |
1 | 608 |
} else { |
34666 | 609 |
verify_legal_method_name(name, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
610 |
if (_need_verify && _major_version >= JAVA_7_VERSION) { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
611 |
// Signature is verified above, when iterating NameAndType_info. |
35218
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
612 |
// Need only to be sure it's non-zero length and the right type. |
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
613 |
if (signature->utf8_length() == 0 || |
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
614 |
signature->byte_at(0) != JVM_SIGNATURE_FUNC) { |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
615 |
throwIllegalSignature( |
34666 | 616 |
"Method", name, signature, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
617 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
618 |
} else { |
34666 | 619 |
verify_legal_method_signature(name, signature, CHECK); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
620 |
} |
1 | 621 |
if (tag == JVM_CONSTANT_Methodref) { |
622 |
// 4509014: If a class method name begins with '<', it must be "<init>". |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
623 |
assert(name != NULL, "method name in constant pool is null"); |
34666 | 624 |
const unsigned int name_len = name->utf8_length(); |
35218
00aa934a1a20
8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
hseigel
parents:
35071
diff
changeset
|
625 |
if (name_len != 0 && name->byte_at(0) == '<') { |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
626 |
if (name != vmSymbols::object_initializer_name()) { |
1 | 627 |
classfile_parse_error( |
628 |
"Bad method name at constant pool index %u in class file %s", |
|
34666 | 629 |
name_ref_index, CHECK); |
1 | 630 |
} |
631 |
} |
|
632 |
} |
|
633 |
} |
|
634 |
break; |
|
635 |
} |
|
5882 | 636 |
case JVM_CONSTANT_MethodHandle: { |
34666 | 637 |
const int ref_index = cp->method_handle_index_at(index); |
638 |
const int ref_kind = cp->method_handle_ref_kind_at(index); |
|
5882 | 639 |
switch (ref_kind) { |
34666 | 640 |
case JVM_REF_invokeVirtual: |
641 |
case JVM_REF_invokeStatic: |
|
642 |
case JVM_REF_invokeSpecial: |
|
643 |
case JVM_REF_newInvokeSpecial: { |
|
644 |
const int name_and_type_ref_index = |
|
645 |
cp->name_and_type_ref_index_at(ref_index); |
|
646 |
const int name_ref_index = |
|
647 |
cp->name_ref_index_at(name_and_type_ref_index); |
|
648 |
const Symbol* const name = cp->symbol_at(name_ref_index); |
|
5882 | 649 |
if (ref_kind == JVM_REF_newInvokeSpecial) { |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
650 |
if (name != vmSymbols::object_initializer_name()) { |
5882 | 651 |
classfile_parse_error( |
652 |
"Bad constructor name at constant pool index %u in class file %s", |
|
34666 | 653 |
name_ref_index, CHECK); |
5882 | 654 |
} |
655 |
} else { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
656 |
if (name == vmSymbols::object_initializer_name()) { |
5882 | 657 |
classfile_parse_error( |
658 |
"Bad method name at constant pool index %u in class file %s", |
|
34666 | 659 |
name_ref_index, CHECK); |
5882 | 660 |
} |
661 |
} |
|
34666 | 662 |
break; |
5882 | 663 |
} |
664 |
// Other ref_kinds are already fully checked in previous pass. |
|
34666 | 665 |
} // switch(ref_kind) |
5882 | 666 |
break; |
667 |
} |
|
668 |
case JVM_CONSTANT_MethodType: { |
|
34666 | 669 |
const Symbol* const no_name = vmSymbols::type_name(); // place holder |
670 |
const Symbol* const signature = cp->method_type_signature_at(index); |
|
671 |
verify_legal_method_signature(no_name, signature, CHECK); |
|
5882 | 672 |
break; |
673 |
} |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
674 |
case JVM_CONSTANT_Utf8: { |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
675 |
assert(cp->symbol_at(index)->refcount() != 0, "count corrupted"); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
676 |
} |
34666 | 677 |
} // switch(tag) |
1 | 678 |
} // end of for |
679 |
} |
|
680 |
||
34666 | 681 |
void ClassFileParser::patch_constant_pool(ConstantPool* cp, |
682 |
int index, |
|
683 |
Handle patch, |
|
684 |
TRAPS) { |
|
685 |
assert(cp != NULL, "invariant"); |
|
686 |
||
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
687 |
BasicType patch_type = T_VOID; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
688 |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
689 |
switch (cp->tag_at(index).value()) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
690 |
|
34666 | 691 |
case JVM_CONSTANT_UnresolvedClass: { |
692 |
// Patching a class means pre-resolving it. |
|
693 |
// The name in the constant pool is ignored. |
|
694 |
if (java_lang_Class::is_instance(patch())) { |
|
695 |
guarantee_property(!java_lang_Class::is_primitive(patch()), |
|
696 |
"Illegal class patch at %d in class file %s", |
|
697 |
index, CHECK); |
|
698 |
cp->klass_at_put(index, java_lang_Class::as_Klass(patch())); |
|
699 |
} else { |
|
700 |
guarantee_property(java_lang_String::is_instance(patch()), |
|
701 |
"Illegal class patch at %d in class file %s", |
|
702 |
index, CHECK); |
|
703 |
Symbol* const name = java_lang_String::as_symbol(patch(), CHECK); |
|
704 |
cp->unresolved_klass_at_put(index, name); |
|
705 |
} |
|
706 |
break; |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
707 |
} |
34666 | 708 |
|
709 |
case JVM_CONSTANT_String: { |
|
710 |
// skip this patch and don't clear it. Needs the oop array for resolved |
|
711 |
// references to be created first. |
|
712 |
return; |
|
713 |
} |
|
714 |
case JVM_CONSTANT_Integer: patch_type = T_INT; goto patch_prim; |
|
715 |
case JVM_CONSTANT_Float: patch_type = T_FLOAT; goto patch_prim; |
|
716 |
case JVM_CONSTANT_Long: patch_type = T_LONG; goto patch_prim; |
|
717 |
case JVM_CONSTANT_Double: patch_type = T_DOUBLE; goto patch_prim; |
|
718 |
patch_prim: |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
719 |
{ |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
720 |
jvalue value; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
721 |
BasicType value_type = java_lang_boxing_object::get_value(patch(), &value); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
722 |
guarantee_property(value_type == patch_type, |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
723 |
"Illegal primitive patch at %d in class file %s", |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
724 |
index, CHECK); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
725 |
switch (value_type) { |
34666 | 726 |
case T_INT: cp->int_at_put(index, value.i); break; |
727 |
case T_FLOAT: cp->float_at_put(index, value.f); break; |
|
728 |
case T_LONG: cp->long_at_put(index, value.j); break; |
|
729 |
case T_DOUBLE: cp->double_at_put(index, value.d); break; |
|
730 |
default: assert(false, ""); |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
731 |
} |
34666 | 732 |
} // end patch_prim label |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
733 |
break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
734 |
|
34666 | 735 |
default: { |
736 |
// %%% TODO: put method handles into CONSTANT_InterfaceMethodref, etc. |
|
737 |
guarantee_property(!has_cp_patch_at(index), |
|
738 |
"Illegal unexpected patch at %d in class file %s", |
|
739 |
index, CHECK); |
|
740 |
return; |
|
741 |
} |
|
742 |
} // end of switch(tag) |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
743 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
744 |
// On fall-through, mark the patch as used. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
745 |
clear_cp_patch_at(index); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
746 |
} |
1 | 747 |
class NameSigHash: public ResourceObj { |
748 |
public: |
|
34666 | 749 |
const Symbol* _name; // name |
750 |
const Symbol* _sig; // signature |
|
751 |
NameSigHash* _next; // Next entry in hash table |
|
1 | 752 |
}; |
753 |
||
34666 | 754 |
static const int HASH_ROW_SIZE = 256; |
755 |
||
756 |
static unsigned int hash(const Symbol* name, const Symbol* sig) { |
|
1 | 757 |
unsigned int raw_hash = 0; |
758 |
raw_hash += ((unsigned int)(uintptr_t)name) >> (LogHeapWordSize + 2); |
|
759 |
raw_hash += ((unsigned int)(uintptr_t)sig) >> LogHeapWordSize; |
|
760 |
||
761 |
return (raw_hash + (unsigned int)(uintptr_t)name) % HASH_ROW_SIZE; |
|
762 |
} |
|
763 |
||
764 |
||
34666 | 765 |
static void initialize_hashtable(NameSigHash** table) { |
1 | 766 |
memset((void*)table, 0, sizeof(NameSigHash*) * HASH_ROW_SIZE); |
767 |
} |
|
768 |
// Return false if the name/sig combination is found in table. |
|
769 |
// Return true if no duplicate is found. And name/sig is added as a new entry in table. |
|
770 |
// The old format checker uses heap sort to find duplicates. |
|
771 |
// NOTE: caller should guarantee that GC doesn't happen during the life cycle |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
772 |
// of table since we don't expect Symbol*'s to move. |
34666 | 773 |
static bool put_after_lookup(const Symbol* name, const Symbol* sig, NameSigHash** table) { |
1 | 774 |
assert(name != NULL, "name in constant pool is NULL"); |
775 |
||
776 |
// First lookup for duplicates |
|
777 |
int index = hash(name, sig); |
|
778 |
NameSigHash* entry = table[index]; |
|
779 |
while (entry != NULL) { |
|
780 |
if (entry->_name == name && entry->_sig == sig) { |
|
781 |
return false; |
|
782 |
} |
|
783 |
entry = entry->_next; |
|
784 |
} |
|
785 |
||
786 |
// No duplicate is found, allocate a new entry and fill it. |
|
787 |
entry = new NameSigHash(); |
|
788 |
entry->_name = name; |
|
789 |
entry->_sig = sig; |
|
790 |
||
791 |
// Insert into hash table |
|
792 |
entry->_next = table[index]; |
|
793 |
table[index] = entry; |
|
794 |
||
795 |
return true; |
|
796 |
} |
|
797 |
||
34666 | 798 |
// Side-effects: populates the _local_interfaces field |
799 |
void ClassFileParser::parse_interfaces(const ClassFileStream* const stream, |
|
800 |
const int itfs_len, |
|
801 |
ConstantPool* const cp, |
|
802 |
bool* const has_default_methods, |
|
803 |
TRAPS) { |
|
804 |
assert(stream != NULL, "invariant"); |
|
805 |
assert(cp != NULL, "invariant"); |
|
806 |
assert(has_default_methods != NULL, "invariant"); |
|
807 |
||
808 |
if (itfs_len == 0) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
809 |
_local_interfaces = Universe::the_empty_klass_array(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
810 |
} else { |
34666 | 811 |
assert(itfs_len > 0, "only called for len>0"); |
812 |
_local_interfaces = MetadataFactory::new_array<Klass*>(_loader_data, itfs_len, NULL, CHECK); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
813 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
814 |
int index; |
34666 | 815 |
for (index = 0; index < itfs_len; index++) { |
816 |
const u2 interface_index = stream->get_u2(CHECK); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
817 |
KlassHandle interf; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
818 |
check_property( |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
819 |
valid_klass_reference_at(interface_index), |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
820 |
"Interface name has bad constant pool index %u in class file %s", |
34666 | 821 |
interface_index, CHECK); |
822 |
if (cp->tag_at(interface_index).is_klass()) { |
|
823 |
interf = KlassHandle(THREAD, cp->resolved_klass_at(interface_index)); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
824 |
} else { |
34666 | 825 |
Symbol* const unresolved_klass = cp->klass_name_at(interface_index); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
826 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
827 |
// Don't need to check legal name because it's checked when parsing constant pool. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
828 |
// But need to make sure it's not an array type. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
829 |
guarantee_property(unresolved_klass->byte_at(0) != JVM_SIGNATURE_ARRAY, |
34666 | 830 |
"Bad interface name in class file %s", CHECK); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
831 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
832 |
// Call resolve_super so classcircularity is checked |
34666 | 833 |
const Klass* const k = |
834 |
SystemDictionary::resolve_super_or_fail(_class_name, |
|
835 |
unresolved_klass, |
|
836 |
_loader_data->class_loader(), |
|
837 |
_protection_domain, |
|
838 |
false, |
|
839 |
CHECK); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
840 |
interf = KlassHandle(THREAD, k); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
841 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
842 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
843 |
if (!interf()->is_interface()) { |
34666 | 844 |
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), |
845 |
"Implementing class"); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
846 |
} |
34666 | 847 |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
848 |
if (InstanceKlass::cast(interf())->has_default_methods()) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
849 |
*has_default_methods = true; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
850 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
851 |
_local_interfaces->at_put(index, interf()); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
852 |
} |
1 | 853 |
|
34666 | 854 |
if (!_need_verify || itfs_len <= 1) { |
855 |
return; |
|
14385 | 856 |
} |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
857 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
858 |
// Check if there's any duplicates in interfaces |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
859 |
ResourceMark rm(THREAD); |
34666 | 860 |
NameSigHash** interface_names = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, |
861 |
NameSigHash*, |
|
862 |
HASH_ROW_SIZE); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
863 |
initialize_hashtable(interface_names); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
864 |
bool dup = false; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
865 |
{ |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
866 |
debug_only(No_Safepoint_Verifier nsv;) |
34666 | 867 |
for (index = 0; index < itfs_len; index++) { |
868 |
const Klass* const k = _local_interfaces->at(index); |
|
869 |
const Symbol* const name = InstanceKlass::cast(k)->name(); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
870 |
// If no duplicates, add (name, NULL) in hashtable interface_names. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
871 |
if (!put_after_lookup(name, NULL, interface_names)) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
872 |
dup = true; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
873 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
874 |
} |
1 | 875 |
} |
876 |
} |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
877 |
if (dup) { |
34666 | 878 |
classfile_parse_error("Duplicate interface name in class file %s", CHECK); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
879 |
} |
1 | 880 |
} |
881 |
} |
|
882 |
||
34666 | 883 |
void ClassFileParser::verify_constantvalue(const ConstantPool* const cp, |
884 |
int constantvalue_index, |
|
885 |
int signature_index, |
|
886 |
TRAPS) const { |
|
1 | 887 |
// Make sure the constant pool entry is of a type appropriate to this field |
888 |
guarantee_property( |
|
889 |
(constantvalue_index > 0 && |
|
34666 | 890 |
constantvalue_index < cp->length()), |
1 | 891 |
"Bad initial value index %u in ConstantValue attribute in class file %s", |
892 |
constantvalue_index, CHECK); |
|
34666 | 893 |
|
894 |
const constantTag value_type = cp->tag_at(constantvalue_index); |
|
895 |
switch(cp->basic_type_for_signature_at(signature_index)) { |
|
896 |
case T_LONG: { |
|
897 |
guarantee_property(value_type.is_long(), |
|
898 |
"Inconsistent constant value type in class file %s", |
|
899 |
CHECK); |
|
900 |
break; |
|
901 |
} |
|
902 |
case T_FLOAT: { |
|
903 |
guarantee_property(value_type.is_float(), |
|
904 |
"Inconsistent constant value type in class file %s", |
|
905 |
CHECK); |
|
1 | 906 |
break; |
34666 | 907 |
} |
908 |
case T_DOUBLE: { |
|
909 |
guarantee_property(value_type.is_double(), |
|
910 |
"Inconsistent constant value type in class file %s", |
|
911 |
CHECK); |
|
912 |
break; |
|
913 |
} |
|
914 |
case T_BYTE: |
|
915 |
case T_CHAR: |
|
916 |
case T_SHORT: |
|
917 |
case T_BOOLEAN: |
|
918 |
case T_INT: { |
|
919 |
guarantee_property(value_type.is_int(), |
|
920 |
"Inconsistent constant value type in class file %s", |
|
921 |
CHECK); |
|
922 |
break; |
|
923 |
} |
|
924 |
case T_OBJECT: { |
|
925 |
guarantee_property((cp->symbol_at(signature_index)->equals("Ljava/lang/String;") |
|
926 |
&& value_type.is_string()), |
|
927 |
"Bad string initial value in class file %s", |
|
928 |
CHECK); |
|
1 | 929 |
break; |
34666 | 930 |
} |
931 |
default: { |
|
932 |
classfile_parse_error("Unable to set initial value %u in class file %s", |
|
933 |
constantvalue_index, |
|
934 |
CHECK); |
|
935 |
} |
|
936 |
} |
|
937 |
} |
|
938 |
||
939 |
class AnnotationCollector : public ResourceObj{ |
|
940 |
public: |
|
941 |
enum Location { _in_field, _in_method, _in_class }; |
|
942 |
enum ID { |
|
943 |
_unknown = 0, |
|
944 |
_method_CallerSensitive, |
|
945 |
_method_ForceInline, |
|
946 |
_method_DontInline, |
|
947 |
_method_InjectedProfile, |
|
948 |
_method_LambdaForm_Compiled, |
|
949 |
_method_LambdaForm_Hidden, |
|
950 |
_method_HotSpotIntrinsicCandidate, |
|
951 |
_jdk_internal_vm_annotation_Contended, |
|
952 |
_field_Stable, |
|
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
953 |
_jdk_internal_vm_annotation_ReservedStackAccess, |
34666 | 954 |
_annotation_LIMIT |
955 |
}; |
|
956 |
const Location _location; |
|
957 |
int _annotations_present; |
|
958 |
u2 _contended_group; |
|
959 |
||
960 |
AnnotationCollector(Location location) |
|
961 |
: _location(location), _annotations_present(0) |
|
962 |
{ |
|
963 |
assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, ""); |
|
964 |
} |
|
965 |
// If this annotation name has an ID, report it (or _none). |
|
966 |
ID annotation_index(const ClassLoaderData* loader_data, const Symbol* name); |
|
967 |
// Set the annotation name: |
|
968 |
void set_annotation(ID id) { |
|
969 |
assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob"); |
|
970 |
_annotations_present |= nth_bit((int)id); |
|
971 |
} |
|
972 |
||
973 |
void remove_annotation(ID id) { |
|
974 |
assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob"); |
|
975 |
_annotations_present &= ~nth_bit((int)id); |
|
976 |
} |
|
977 |
||
978 |
// Report if the annotation is present. |
|
979 |
bool has_any_annotations() const { return _annotations_present != 0; } |
|
980 |
bool has_annotation(ID id) const { return (nth_bit((int)id) & _annotations_present) != 0; } |
|
981 |
||
982 |
void set_contended_group(u2 group) { _contended_group = group; } |
|
983 |
u2 contended_group() const { return _contended_group; } |
|
984 |
||
985 |
bool is_contended() const { return has_annotation(_jdk_internal_vm_annotation_Contended); } |
|
986 |
||
987 |
void set_stable(bool stable) { set_annotation(_field_Stable); } |
|
988 |
bool is_stable() const { return has_annotation(_field_Stable); } |
|
989 |
}; |
|
990 |
||
991 |
// This class also doubles as a holder for metadata cleanup. |
|
992 |
class ClassFileParser::FieldAnnotationCollector : public AnnotationCollector { |
|
993 |
private: |
|
994 |
ClassLoaderData* _loader_data; |
|
995 |
AnnotationArray* _field_annotations; |
|
996 |
AnnotationArray* _field_type_annotations; |
|
997 |
public: |
|
998 |
FieldAnnotationCollector(ClassLoaderData* loader_data) : |
|
999 |
AnnotationCollector(_in_field), |
|
1000 |
_loader_data(loader_data), |
|
1001 |
_field_annotations(NULL), |
|
1002 |
_field_type_annotations(NULL) {} |
|
1003 |
~FieldAnnotationCollector(); |
|
1004 |
void apply_to(FieldInfo* f); |
|
1005 |
AnnotationArray* field_annotations() { return _field_annotations; } |
|
1006 |
AnnotationArray* field_type_annotations() { return _field_type_annotations; } |
|
1007 |
||
1008 |
void set_field_annotations(AnnotationArray* a) { _field_annotations = a; } |
|
1009 |
void set_field_type_annotations(AnnotationArray* a) { _field_type_annotations = a; } |
|
1010 |
}; |
|
1011 |
||
1012 |
class MethodAnnotationCollector : public AnnotationCollector{ |
|
1013 |
public: |
|
1014 |
MethodAnnotationCollector() : AnnotationCollector(_in_method) { } |
|
1015 |
void apply_to(methodHandle m); |
|
1016 |
}; |
|
1017 |
||
1018 |
class ClassFileParser::ClassAnnotationCollector : public AnnotationCollector{ |
|
1019 |
public: |
|
1020 |
ClassAnnotationCollector() : AnnotationCollector(_in_class) { } |
|
1021 |
void apply_to(InstanceKlass* ik); |
|
1022 |
}; |
|
1023 |
||
1024 |
||
1025 |
static int skip_annotation_value(const u1*, int, int); // fwd decl |
|
1026 |
||
1027 |
// Skip an annotation. Return >=limit if there is any problem. |
|
1028 |
static int skip_annotation(const u1* buffer, int limit, int index) { |
|
1029 |
assert(buffer != NULL, "invariant"); |
|
1030 |
// annotation := atype:u2 do(nmem:u2) {member:u2 value} |
|
1031 |
// value := switch (tag:u1) { ... } |
|
1032 |
index += 2; // skip atype |
|
1033 |
if ((index += 2) >= limit) return limit; // read nmem |
|
1034 |
int nmem = Bytes::get_Java_u2((address)buffer + index - 2); |
|
1035 |
while (--nmem >= 0 && index < limit) { |
|
1036 |
index += 2; // skip member |
|
1037 |
index = skip_annotation_value(buffer, limit, index); |
|
1038 |
} |
|
1039 |
return index; |
|
1040 |
} |
|
1041 |
||
1042 |
// Skip an annotation value. Return >=limit if there is any problem. |
|
1043 |
static int skip_annotation_value(const u1* buffer, int limit, int index) { |
|
1044 |
assert(buffer != NULL, "invariant"); |
|
1045 |
||
1046 |
// value := switch (tag:u1) { |
|
1047 |
// case B, C, I, S, Z, D, F, J, c: con:u2; |
|
1048 |
// case e: e_class:u2 e_name:u2; |
|
1049 |
// case s: s_con:u2; |
|
1050 |
// case [: do(nval:u2) {value}; |
|
1051 |
// case @: annotation; |
|
1052 |
// case s: s_con:u2; |
|
1053 |
// } |
|
1054 |
if ((index += 1) >= limit) return limit; // read tag |
|
1055 |
const u1 tag = buffer[index - 1]; |
|
1056 |
switch (tag) { |
|
1057 |
case 'B': |
|
1058 |
case 'C': |
|
1059 |
case 'I': |
|
1060 |
case 'S': |
|
1061 |
case 'Z': |
|
1062 |
case 'D': |
|
1063 |
case 'F': |
|
1064 |
case 'J': |
|
1065 |
case 'c': |
|
1066 |
case 's': |
|
1067 |
index += 2; // skip con or s_con |
|
1 | 1068 |
break; |
34666 | 1069 |
case 'e': |
1070 |
index += 4; // skip e_class, e_name |
|
1 | 1071 |
break; |
34666 | 1072 |
case '[': |
1073 |
{ |
|
1074 |
if ((index += 2) >= limit) return limit; // read nval |
|
1075 |
int nval = Bytes::get_Java_u2((address)buffer + index - 2); |
|
1076 |
while (--nval >= 0 && index < limit) { |
|
1077 |
index = skip_annotation_value(buffer, limit, index); |
|
1078 |
} |
|
1079 |
} |
|
1080 |
break; |
|
1081 |
case '@': |
|
1082 |
index = skip_annotation(buffer, limit, index); |
|
1 | 1083 |
break; |
1084 |
default: |
|
34666 | 1085 |
return limit; // bad tag byte |
1086 |
} |
|
1087 |
return index; |
|
1088 |
} |
|
1089 |
||
1090 |
// Sift through annotations, looking for those significant to the VM: |
|
1091 |
static void parse_annotations(const ConstantPool* const cp, |
|
1092 |
const u1* buffer, int limit, |
|
1093 |
AnnotationCollector* coll, |
|
1094 |
ClassLoaderData* loader_data, |
|
1095 |
TRAPS) { |
|
1096 |
||
1097 |
assert(cp != NULL, "invariant"); |
|
1098 |
assert(buffer != NULL, "invariant"); |
|
1099 |
assert(coll != NULL, "invariant"); |
|
1100 |
assert(loader_data != NULL, "invariant"); |
|
1101 |
||
1102 |
// annotations := do(nann:u2) {annotation} |
|
1103 |
int index = 0; |
|
1104 |
if ((index += 2) >= limit) return; // read nann |
|
1105 |
int nann = Bytes::get_Java_u2((address)buffer + index - 2); |
|
1106 |
enum { // initial annotation layout |
|
1107 |
atype_off = 0, // utf8 such as 'Ljava/lang/annotation/Retention;' |
|
1108 |
count_off = 2, // u2 such as 1 (one value) |
|
1109 |
member_off = 4, // utf8 such as 'value' |
|
1110 |
tag_off = 6, // u1 such as 'c' (type) or 'e' (enum) |
|
1111 |
e_tag_val = 'e', |
|
1112 |
e_type_off = 7, // utf8 such as 'Ljava/lang/annotation/RetentionPolicy;' |
|
1113 |
e_con_off = 9, // utf8 payload, such as 'SOURCE', 'CLASS', 'RUNTIME' |
|
1114 |
e_size = 11, // end of 'e' annotation |
|
1115 |
c_tag_val = 'c', // payload is type |
|
1116 |
c_con_off = 7, // utf8 payload, such as 'I' |
|
1117 |
c_size = 9, // end of 'c' annotation |
|
1118 |
s_tag_val = 's', // payload is String |
|
1119 |
s_con_off = 7, // utf8 payload, such as 'Ljava/lang/String;' |
|
1120 |
s_size = 9, |
|
1121 |
min_size = 6 // smallest possible size (zero members) |
|
1122 |
}; |
|
1123 |
while ((--nann) >= 0 && (index - 2 + min_size <= limit)) { |
|
1124 |
int index0 = index; |
|
1125 |
index = skip_annotation(buffer, limit, index); |
|
1126 |
const u1* const abase = buffer + index0; |
|
1127 |
const int atype = Bytes::get_Java_u2((address)abase + atype_off); |
|
1128 |
const int count = Bytes::get_Java_u2((address)abase + count_off); |
|
1129 |
const Symbol* const aname = check_symbol_at(cp, atype); |
|
1130 |
if (aname == NULL) break; // invalid annotation name |
|
1131 |
const Symbol* member = NULL; |
|
1132 |
if (count >= 1) { |
|
1133 |
const int member_index = Bytes::get_Java_u2((address)abase + member_off); |
|
1134 |
member = check_symbol_at(cp, member_index); |
|
1135 |
if (member == NULL) break; // invalid member name |
|
1136 |
} |
|
1137 |
||
1138 |
// Here is where parsing particular annotations will take place. |
|
1139 |
AnnotationCollector::ID id = coll->annotation_index(loader_data, aname); |
|
1140 |
if (AnnotationCollector::_unknown == id) continue; |
|
1141 |
coll->set_annotation(id); |
|
1142 |
||
1143 |
if (AnnotationCollector::_jdk_internal_vm_annotation_Contended == id) { |
|
1144 |
// @Contended can optionally specify the contention group. |
|
1145 |
// |
|
1146 |
// Contended group defines the equivalence class over the fields: |
|
1147 |
// the fields within the same contended group are not treated distinct. |
|
1148 |
// The only exception is default group, which does not incur the |
|
1149 |
// equivalence. Naturally, contention group for classes is meaningless. |
|
1150 |
// |
|
1151 |
// While the contention group is specified as String, annotation |
|
1152 |
// values are already interned, and we might as well use the constant |
|
1153 |
// pool index as the group tag. |
|
1154 |
// |
|
1155 |
u2 group_index = 0; // default contended group |
|
1156 |
if (count == 1 |
|
1157 |
&& s_size == (index - index0) // match size |
|
1158 |
&& s_tag_val == *(abase + tag_off) |
|
1159 |
&& member == vmSymbols::value_name()) { |
|
1160 |
group_index = Bytes::get_Java_u2((address)abase + s_con_off); |
|
1161 |
if (cp->symbol_at(group_index)->utf8_length() == 0) { |
|
1162 |
group_index = 0; // default contended group |
|
1163 |
} |
|
1164 |
} |
|
1165 |
coll->set_contended_group(group_index); |
|
1166 |
} |
|
1 | 1167 |
} |
1168 |
} |
|
1169 |
||
1170 |
||
1171 |
// Parse attributes for a field. |
|
34666 | 1172 |
void ClassFileParser::parse_field_attributes(const ClassFileStream* const cfs, |
1173 |
u2 attributes_count, |
|
1 | 1174 |
bool is_static, u2 signature_index, |
34666 | 1175 |
u2* const constantvalue_index_addr, |
1176 |
bool* const is_synthetic_addr, |
|
1177 |
u2* const generic_signature_index_addr, |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
1178 |
ClassFileParser::FieldAnnotationCollector* parsed_annotations, |
1 | 1179 |
TRAPS) { |
34666 | 1180 |
assert(cfs != NULL, "invariant"); |
1181 |
assert(constantvalue_index_addr != NULL, "invariant"); |
|
1182 |
assert(is_synthetic_addr != NULL, "invariant"); |
|
1183 |
assert(generic_signature_index_addr != NULL, "invariant"); |
|
1184 |
assert(parsed_annotations != NULL, "invariant"); |
|
1185 |
assert(attributes_count > 0, "attributes_count should be greater than 0"); |
|
1186 |
||
1 | 1187 |
u2 constantvalue_index = 0; |
1188 |
u2 generic_signature_index = 0; |
|
1189 |
bool is_synthetic = false; |
|
34666 | 1190 |
const u1* runtime_visible_annotations = NULL; |
1 | 1191 |
int runtime_visible_annotations_length = 0; |
34666 | 1192 |
const u1* runtime_invisible_annotations = NULL; |
1 | 1193 |
int runtime_invisible_annotations_length = 0; |
34666 | 1194 |
const u1* runtime_visible_type_annotations = NULL; |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1195 |
int runtime_visible_type_annotations_length = 0; |
34666 | 1196 |
const u1* runtime_invisible_type_annotations = NULL; |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1197 |
int runtime_invisible_type_annotations_length = 0; |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1198 |
bool runtime_invisible_annotations_exists = false; |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1199 |
bool runtime_invisible_type_annotations_exists = false; |
34666 | 1200 |
const ConstantPool* const cp = _cp; |
1201 |
||
1 | 1202 |
while (attributes_count--) { |
1203 |
cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length |
|
34666 | 1204 |
const u2 attribute_name_index = cfs->get_u2_fast(); |
1205 |
const u4 attribute_length = cfs->get_u4_fast(); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1206 |
check_property(valid_symbol_at(attribute_name_index), |
1 | 1207 |
"Invalid field attribute index %u in class file %s", |
1208 |
attribute_name_index, |
|
1209 |
CHECK); |
|
34666 | 1210 |
|
1211 |
const Symbol* const attribute_name = cp->symbol_at(attribute_name_index); |
|
1 | 1212 |
if (is_static && attribute_name == vmSymbols::tag_constant_value()) { |
1213 |
// ignore if non-static |
|
1214 |
if (constantvalue_index != 0) { |
|
1215 |
classfile_parse_error("Duplicate ConstantValue attribute in class file %s", CHECK); |
|
1216 |
} |
|
1217 |
check_property( |
|
1218 |
attribute_length == 2, |
|
1219 |
"Invalid ConstantValue field attribute length %u in class file %s", |
|
1220 |
attribute_length, CHECK); |
|
34666 | 1221 |
|
1 | 1222 |
constantvalue_index = cfs->get_u2(CHECK); |
1223 |
if (_need_verify) { |
|
34666 | 1224 |
verify_constantvalue(cp, constantvalue_index, signature_index, CHECK); |
1 | 1225 |
} |
1226 |
} else if (attribute_name == vmSymbols::tag_synthetic()) { |
|
1227 |
if (attribute_length != 0) { |
|
1228 |
classfile_parse_error( |
|
1229 |
"Invalid Synthetic field attribute length %u in class file %s", |
|
1230 |
attribute_length, CHECK); |
|
1231 |
} |
|
1232 |
is_synthetic = true; |
|
1233 |
} else if (attribute_name == vmSymbols::tag_deprecated()) { // 4276120 |
|
1234 |
if (attribute_length != 0) { |
|
1235 |
classfile_parse_error( |
|
1236 |
"Invalid Deprecated field attribute length %u in class file %s", |
|
1237 |
attribute_length, CHECK); |
|
1238 |
} |
|
1239 |
} else if (_major_version >= JAVA_1_5_VERSION) { |
|
1240 |
if (attribute_name == vmSymbols::tag_signature()) { |
|
1241 |
if (attribute_length != 2) { |
|
1242 |
classfile_parse_error( |
|
1243 |
"Wrong size %u for field's Signature attribute in class file %s", |
|
1244 |
attribute_length, CHECK); |
|
1245 |
} |
|
34666 | 1246 |
generic_signature_index = parse_generic_signature_attribute(cfs, CHECK); |
1 | 1247 |
} else if (attribute_name == vmSymbols::tag_runtime_visible_annotations()) { |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1248 |
if (runtime_visible_annotations != NULL) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1249 |
classfile_parse_error( |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1250 |
"Multiple RuntimeVisibleAnnotations attributes for field in class file %s", CHECK); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1251 |
} |
1 | 1252 |
runtime_visible_annotations_length = attribute_length; |
1253 |
runtime_visible_annotations = cfs->get_u1_buffer(); |
|
1254 |
assert(runtime_visible_annotations != NULL, "null visible annotations"); |
|
34666 | 1255 |
parse_annotations(cp, |
1256 |
runtime_visible_annotations, |
|
15193
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1257 |
runtime_visible_annotations_length, |
34666 | 1258 |
parsed_annotations, |
1259 |
_loader_data, |
|
1260 |
CHECK); |
|
1 | 1261 |
cfs->skip_u1(runtime_visible_annotations_length, CHECK); |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1262 |
} else if (attribute_name == vmSymbols::tag_runtime_invisible_annotations()) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1263 |
if (runtime_invisible_annotations_exists) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1264 |
classfile_parse_error( |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1265 |
"Multiple RuntimeInvisibleAnnotations attributes for field in class file %s", CHECK); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1266 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1267 |
runtime_invisible_annotations_exists = true; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1268 |
if (PreserveAllAnnotations) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1269 |
runtime_invisible_annotations_length = attribute_length; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1270 |
runtime_invisible_annotations = cfs->get_u1_buffer(); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1271 |
assert(runtime_invisible_annotations != NULL, "null invisible annotations"); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1272 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
1273 |
cfs->skip_u1(attribute_length, CHECK); |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1274 |
} else if (attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) { |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1275 |
if (runtime_visible_type_annotations != NULL) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1276 |
classfile_parse_error( |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1277 |
"Multiple RuntimeVisibleTypeAnnotations attributes for field in class file %s", CHECK); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1278 |
} |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1279 |
runtime_visible_type_annotations_length = attribute_length; |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1280 |
runtime_visible_type_annotations = cfs->get_u1_buffer(); |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1281 |
assert(runtime_visible_type_annotations != NULL, "null visible type annotations"); |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1282 |
cfs->skip_u1(runtime_visible_type_annotations_length, CHECK); |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1283 |
} else if (attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1284 |
if (runtime_invisible_type_annotations_exists) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1285 |
classfile_parse_error( |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1286 |
"Multiple RuntimeInvisibleTypeAnnotations attributes for field in class file %s", CHECK); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1287 |
} else { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1288 |
runtime_invisible_type_annotations_exists = true; |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1289 |
} |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1290 |
if (PreserveAllAnnotations) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1291 |
runtime_invisible_type_annotations_length = attribute_length; |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1292 |
runtime_invisible_type_annotations = cfs->get_u1_buffer(); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1293 |
assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations"); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1294 |
} |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
1295 |
cfs->skip_u1(attribute_length, CHECK); |
1 | 1296 |
} else { |
1297 |
cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes |
|
1298 |
} |
|
1299 |
} else { |
|
1300 |
cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes |
|
1301 |
} |
|
1302 |
} |
|
1303 |
||
1304 |
*constantvalue_index_addr = constantvalue_index; |
|
1305 |
*is_synthetic_addr = is_synthetic; |
|
1306 |
*generic_signature_index_addr = generic_signature_index; |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1307 |
AnnotationArray* a = assemble_annotations(runtime_visible_annotations, |
1 | 1308 |
runtime_visible_annotations_length, |
1309 |
runtime_invisible_annotations, |
|
1310 |
runtime_invisible_annotations_length, |
|
1311 |
CHECK); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1312 |
parsed_annotations->set_field_annotations(a); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1313 |
a = assemble_annotations(runtime_visible_type_annotations, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1314 |
runtime_visible_type_annotations_length, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1315 |
runtime_invisible_type_annotations, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1316 |
runtime_invisible_type_annotations_length, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1317 |
CHECK); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1318 |
parsed_annotations->set_field_type_annotations(a); |
1 | 1319 |
return; |
1320 |
} |
|
1321 |
||
1322 |
||
1323 |
// Field allocation types. Used for computing field offsets. |
|
1324 |
||
1325 |
enum FieldAllocationType { |
|
1326 |
STATIC_OOP, // Oops |
|
1327 |
STATIC_BYTE, // Boolean, Byte, char |
|
1328 |
STATIC_SHORT, // shorts |
|
1329 |
STATIC_WORD, // ints |
|
10546 | 1330 |
STATIC_DOUBLE, // aligned long or double |
1 | 1331 |
NONSTATIC_OOP, |
1332 |
NONSTATIC_BYTE, |
|
1333 |
NONSTATIC_SHORT, |
|
1334 |
NONSTATIC_WORD, |
|
1335 |
NONSTATIC_DOUBLE, |
|
10546 | 1336 |
MAX_FIELD_ALLOCATION_TYPE, |
1337 |
BAD_ALLOCATION_TYPE = -1 |
|
1 | 1338 |
}; |
1339 |
||
10546 | 1340 |
static FieldAllocationType _basic_type_to_atype[2 * (T_CONFLICT + 1)] = { |
1341 |
BAD_ALLOCATION_TYPE, // 0 |
|
1342 |
BAD_ALLOCATION_TYPE, // 1 |
|
1343 |
BAD_ALLOCATION_TYPE, // 2 |
|
1344 |
BAD_ALLOCATION_TYPE, // 3 |
|
13969
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1345 |
NONSTATIC_BYTE , // T_BOOLEAN = 4, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1346 |
NONSTATIC_SHORT, // T_CHAR = 5, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1347 |
NONSTATIC_WORD, // T_FLOAT = 6, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1348 |
NONSTATIC_DOUBLE, // T_DOUBLE = 7, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1349 |
NONSTATIC_BYTE, // T_BYTE = 8, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1350 |
NONSTATIC_SHORT, // T_SHORT = 9, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1351 |
NONSTATIC_WORD, // T_INT = 10, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1352 |
NONSTATIC_DOUBLE, // T_LONG = 11, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1353 |
NONSTATIC_OOP, // T_OBJECT = 12, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1354 |
NONSTATIC_OOP, // T_ARRAY = 13, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1355 |
BAD_ALLOCATION_TYPE, // T_VOID = 14, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1356 |
BAD_ALLOCATION_TYPE, // T_ADDRESS = 15, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1357 |
BAD_ALLOCATION_TYPE, // T_NARROWOOP = 16, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1358 |
BAD_ALLOCATION_TYPE, // T_METADATA = 17, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1359 |
BAD_ALLOCATION_TYPE, // T_NARROWKLASS = 18, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1360 |
BAD_ALLOCATION_TYPE, // T_CONFLICT = 19, |
10546 | 1361 |
BAD_ALLOCATION_TYPE, // 0 |
1362 |
BAD_ALLOCATION_TYPE, // 1 |
|
1363 |
BAD_ALLOCATION_TYPE, // 2 |
|
1364 |
BAD_ALLOCATION_TYPE, // 3 |
|
13969
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1365 |
STATIC_BYTE , // T_BOOLEAN = 4, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1366 |
STATIC_SHORT, // T_CHAR = 5, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1367 |
STATIC_WORD, // T_FLOAT = 6, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1368 |
STATIC_DOUBLE, // T_DOUBLE = 7, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1369 |
STATIC_BYTE, // T_BYTE = 8, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1370 |
STATIC_SHORT, // T_SHORT = 9, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1371 |
STATIC_WORD, // T_INT = 10, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1372 |
STATIC_DOUBLE, // T_LONG = 11, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1373 |
STATIC_OOP, // T_OBJECT = 12, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1374 |
STATIC_OOP, // T_ARRAY = 13, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1375 |
BAD_ALLOCATION_TYPE, // T_VOID = 14, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1376 |
BAD_ALLOCATION_TYPE, // T_ADDRESS = 15, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1377 |
BAD_ALLOCATION_TYPE, // T_NARROWOOP = 16, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1378 |
BAD_ALLOCATION_TYPE, // T_METADATA = 17, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1379 |
BAD_ALLOCATION_TYPE, // T_NARROWKLASS = 18, |
d2a189b83b87
7054512: Compress class pointers after perm gen removal
roland
parents:
13738
diff
changeset
|
1380 |
BAD_ALLOCATION_TYPE, // T_CONFLICT = 19, |
1 | 1381 |
}; |
1382 |
||
10546 | 1383 |
static FieldAllocationType basic_type_to_atype(bool is_static, BasicType type) { |
1384 |
assert(type >= T_BOOLEAN && type < T_VOID, "only allowable values"); |
|
1385 |
FieldAllocationType result = _basic_type_to_atype[type + (is_static ? (T_CONFLICT + 1) : 0)]; |
|
1386 |
assert(result != BAD_ALLOCATION_TYPE, "bad type"); |
|
1387 |
return result; |
|
1388 |
} |
|
1389 |
||
34666 | 1390 |
class ClassFileParser::FieldAllocationCount : public ResourceObj { |
10546 | 1391 |
public: |
11412
62fe312f32c5
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
10546
diff
changeset
|
1392 |
u2 count[MAX_FIELD_ALLOCATION_TYPE]; |
10546 | 1393 |
|
1394 |
FieldAllocationCount() { |
|
1395 |
for (int i = 0; i < MAX_FIELD_ALLOCATION_TYPE; i++) { |
|
1396 |
count[i] = 0; |
|
1397 |
} |
|
1398 |
} |
|
1399 |
||
1400 |
FieldAllocationType update(bool is_static, BasicType type) { |
|
1401 |
FieldAllocationType atype = basic_type_to_atype(is_static, type); |
|
11412
62fe312f32c5
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
10546
diff
changeset
|
1402 |
// Make sure there is no overflow with injected fields. |
62fe312f32c5
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
10546
diff
changeset
|
1403 |
assert(count[atype] < 0xFFFF, "More than 65535 fields"); |
10546 | 1404 |
count[atype]++; |
1405 |
return atype; |
|
1406 |
} |
|
1407 |
}; |
|
1408 |
||
34666 | 1409 |
// Side-effects: populates the _fields, _fields_annotations, |
1410 |
// _fields_type_annotations fields |
|
1411 |
void ClassFileParser::parse_fields(const ClassFileStream* const cfs, |
|
1412 |
bool is_interface, |
|
1413 |
FieldAllocationCount* const fac, |
|
1414 |
ConstantPool* cp, |
|
1415 |
const int cp_size, |
|
1416 |
u2* const java_fields_count_ptr, |
|
1417 |
TRAPS) { |
|
1418 |
||
1419 |
assert(cfs != NULL, "invariant"); |
|
1420 |
assert(fac != NULL, "invariant"); |
|
1421 |
assert(cp != NULL, "invariant"); |
|
1422 |
assert(java_fields_count_ptr != NULL, "invariant"); |
|
1423 |
||
1424 |
assert(NULL == _fields, "invariant"); |
|
1425 |
assert(NULL == _fields_annotations, "invariant"); |
|
1426 |
assert(NULL == _fields_type_annotations, "invariant"); |
|
1427 |
||
1428 |
cfs->guarantee_more(2, CHECK); // length |
|
1429 |
const u2 length = cfs->get_u2_fast(); |
|
10546 | 1430 |
*java_fields_count_ptr = length; |
1431 |
||
1432 |
int num_injected = 0; |
|
34666 | 1433 |
const InjectedField* const injected = JavaClasses::get_injected(_class_name, |
1434 |
&num_injected); |
|
1435 |
const int total_fields = length + num_injected; |
|
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1436 |
|
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1437 |
// The field array starts with tuples of shorts |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1438 |
// [access, name index, sig index, initial value index, byte offset]. |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1439 |
// A generic signature slot only exists for field with generic |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1440 |
// signature attribute. And the access flag is set with |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1441 |
// JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE for that field. The generic |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1442 |
// signature slots are at the end of the field array and after all |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1443 |
// other fields data. |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1444 |
// |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1445 |
// f1: [access, name index, sig index, initial value index, low_offset, high_offset] |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1446 |
// f2: [access, name index, sig index, initial value index, low_offset, high_offset] |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1447 |
// ... |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1448 |
// fn: [access, name index, sig index, initial value index, low_offset, high_offset] |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1449 |
// [generic signature index] |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1450 |
// [generic signature index] |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1451 |
// ... |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1452 |
// |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1453 |
// Allocate a temporary resource array for field data. For each field, |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1454 |
// a slot is reserved in the temporary array for the generic signature |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1455 |
// index. After parsing all fields, the data are copied to a permanent |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1456 |
// array and any unused slots will be discarded. |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1457 |
ResourceMark rm(THREAD); |
34666 | 1458 |
u2* const fa = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, |
1459 |
u2, |
|
1460 |
total_fields * (FieldInfo::field_slots + 1)); |
|
1 | 1461 |
|
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1462 |
// The generic signature slots start after all other fields' data. |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1463 |
int generic_signature_slot = total_fields * FieldInfo::field_slots; |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1464 |
int num_generic_signature = 0; |
1 | 1465 |
for (int n = 0; n < length; n++) { |
34666 | 1466 |
// access_flags, name_index, descriptor_index, attributes_count |
1467 |
cfs->guarantee_more(8, CHECK); |
|
1 | 1468 |
|
1469 |
AccessFlags access_flags; |
|
34666 | 1470 |
const jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_FIELD_MODIFIERS; |
1471 |
verify_legal_field_modifiers(flags, is_interface, CHECK); |
|
1 | 1472 |
access_flags.set_flags(flags); |
1473 |
||
34666 | 1474 |
const u2 name_index = cfs->get_u2_fast(); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1475 |
check_property(valid_symbol_at(name_index), |
1 | 1476 |
"Invalid constant pool index %u for field name in class file %s", |
34666 | 1477 |
name_index, CHECK); |
1478 |
const Symbol* const name = cp->symbol_at(name_index); |
|
1479 |
verify_legal_field_name(name, CHECK); |
|
1480 |
||
1481 |
const u2 signature_index = cfs->get_u2_fast(); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1482 |
check_property(valid_symbol_at(signature_index), |
1 | 1483 |
"Invalid constant pool index %u for field signature in class file %s", |
34666 | 1484 |
signature_index, CHECK); |
1485 |
const Symbol* const sig = cp->symbol_at(signature_index); |
|
1486 |
verify_legal_field_signature(name, sig, CHECK); |
|
1 | 1487 |
|
1488 |
u2 constantvalue_index = 0; |
|
1489 |
bool is_synthetic = false; |
|
1490 |
u2 generic_signature_index = 0; |
|
34666 | 1491 |
const bool is_static = access_flags.is_static(); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1492 |
FieldAnnotationCollector parsed_annotations(_loader_data); |
1 | 1493 |
|
34666 | 1494 |
const u2 attributes_count = cfs->get_u2_fast(); |
1 | 1495 |
if (attributes_count > 0) { |
34666 | 1496 |
parse_field_attributes(cfs, |
1497 |
attributes_count, |
|
1498 |
is_static, |
|
1499 |
signature_index, |
|
1500 |
&constantvalue_index, |
|
1501 |
&is_synthetic, |
|
1502 |
&generic_signature_index, |
|
1503 |
&parsed_annotations, |
|
1504 |
CHECK); |
|
1505 |
||
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1506 |
if (parsed_annotations.field_annotations() != NULL) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1507 |
if (_fields_annotations == NULL) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1508 |
_fields_annotations = MetadataFactory::new_array<AnnotationArray*>( |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1509 |
_loader_data, length, NULL, |
34666 | 1510 |
CHECK); |
1 | 1511 |
} |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1512 |
_fields_annotations->at_put(n, parsed_annotations.field_annotations()); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1513 |
parsed_annotations.set_field_annotations(NULL); |
1 | 1514 |
} |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1515 |
if (parsed_annotations.field_type_annotations() != NULL) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1516 |
if (_fields_type_annotations == NULL) { |
34666 | 1517 |
_fields_type_annotations = |
1518 |
MetadataFactory::new_array<AnnotationArray*>(_loader_data, |
|
1519 |
length, |
|
1520 |
NULL, |
|
1521 |
CHECK); |
|
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1522 |
} |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1523 |
_fields_type_annotations->at_put(n, parsed_annotations.field_type_annotations()); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1524 |
parsed_annotations.set_field_type_annotations(NULL); |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
1525 |
} |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1526 |
|
1 | 1527 |
if (is_synthetic) { |
1528 |
access_flags.set_is_synthetic(); |
|
1529 |
} |
|
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1530 |
if (generic_signature_index != 0) { |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1531 |
access_flags.set_field_has_generic_signature(); |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1532 |
fa[generic_signature_slot] = generic_signature_index; |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1533 |
generic_signature_slot ++; |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1534 |
num_generic_signature ++; |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1535 |
} |
1 | 1536 |
} |
1537 |
||
34666 | 1538 |
FieldInfo* const field = FieldInfo::from_field_array(fa, n); |
10546 | 1539 |
field->initialize(access_flags.as_short(), |
1540 |
name_index, |
|
1541 |
signature_index, |
|
15193
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1542 |
constantvalue_index); |
34666 | 1543 |
const BasicType type = cp->basic_type_for_signature_at(signature_index); |
1 | 1544 |
|
1545 |
// Remember how many oops we encountered and compute allocation type |
|
34666 | 1546 |
const FieldAllocationType atype = fac->update(is_static, type); |
15193
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1547 |
field->set_allocation_type(atype); |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1548 |
|
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1549 |
// After field is initialized with type, we can augment it with aux info |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1550 |
if (parsed_annotations.has_any_annotations()) |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1551 |
parsed_annotations.apply_to(field); |
10546 | 1552 |
} |
1553 |
||
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1554 |
int index = length; |
10546 | 1555 |
if (num_injected != 0) { |
1556 |
for (int n = 0; n < num_injected; n++) { |
|
1557 |
// Check for duplicates |
|
1558 |
if (injected[n].may_be_java) { |
|
34666 | 1559 |
const Symbol* const name = injected[n].name(); |
1560 |
const Symbol* const signature = injected[n].signature(); |
|
10546 | 1561 |
bool duplicate = false; |
1562 |
for (int i = 0; i < length; i++) { |
|
34666 | 1563 |
const FieldInfo* const f = FieldInfo::from_field_array(fa, i); |
1564 |
if (name == cp->symbol_at(f->name_index()) && |
|
1565 |
signature == cp->symbol_at(f->signature_index())) { |
|
10546 | 1566 |
// Symbol is desclared in Java so skip this one |
1567 |
duplicate = true; |
|
1568 |
break; |
|
1569 |
} |
|
1570 |
} |
|
1571 |
if (duplicate) { |
|
1572 |
// These will be removed from the field array at the end |
|
1573 |
continue; |
|
1574 |
} |
|
1575 |
} |
|
1576 |
||
1577 |
// Injected field |
|
34666 | 1578 |
FieldInfo* const field = FieldInfo::from_field_array(fa, index); |
10546 | 1579 |
field->initialize(JVM_ACC_FIELD_INTERNAL, |
1580 |
injected[n].name_index, |
|
1581 |
injected[n].signature_index, |
|
1582 |
0); |
|
1583 |
||
34666 | 1584 |
const BasicType type = FieldType::basic_type(injected[n].signature()); |
10546 | 1585 |
|
1586 |
// Remember how many oops we encountered and compute allocation type |
|
34666 | 1587 |
const FieldAllocationType atype = fac->update(false, type); |
15193
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
1588 |
field->set_allocation_type(atype); |
10546 | 1589 |
index++; |
1590 |
} |
|
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1591 |
} |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1592 |
|
34666 | 1593 |
assert(NULL == _fields, "invariant"); |
1594 |
||
1595 |
_fields = |
|
1596 |
MetadataFactory::new_array<u2>(_loader_data, |
|
1597 |
index * FieldInfo::field_slots + num_generic_signature, |
|
1598 |
CHECK); |
|
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1599 |
// Sometimes injected fields already exist in the Java source so |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1600 |
// the fields array could be too long. In that case the |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1601 |
// fields array is trimed. Also unused slots that were reserved |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1602 |
// for generic signature indexes are discarded. |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1603 |
{ |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1604 |
int i = 0; |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1605 |
for (; i < index * FieldInfo::field_slots; i++) { |
34666 | 1606 |
_fields->at_put(i, fa[i]); |
10546 | 1607 |
} |
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1608 |
for (int j = total_fields * FieldInfo::field_slots; |
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1609 |
j < generic_signature_slot; j++) { |
34666 | 1610 |
_fields->at_put(i++, fa[j]); |
12772
d317e5e08194
7168280: Eliminate the generic signature index slot from field array for field without generic signature.
jiangli
parents:
12587
diff
changeset
|
1611 |
} |
34666 | 1612 |
assert(_fields->length() == i, ""); |
1 | 1613 |
} |
1614 |
||
1615 |
if (_need_verify && length > 1) { |
|
1616 |
// Check duplicated fields |
|
1617 |
ResourceMark rm(THREAD); |
|
1618 |
NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1619 |
THREAD, NameSigHash*, HASH_ROW_SIZE); |
|
1620 |
initialize_hashtable(names_and_sigs); |
|
1621 |
bool dup = false; |
|
1622 |
{ |
|
1623 |
debug_only(No_Safepoint_Verifier nsv;) |
|
34666 | 1624 |
for (AllFieldStream fs(_fields, cp); !fs.done(); fs.next()) { |
1625 |
const Symbol* const name = fs.name(); |
|
1626 |
const Symbol* const sig = fs.signature(); |
|
1 | 1627 |
// If no duplicates, add name/signature in hashtable names_and_sigs. |
1628 |
if (!put_after_lookup(name, sig, names_and_sigs)) { |
|
1629 |
dup = true; |
|
1630 |
break; |
|
1631 |
} |
|
1632 |
} |
|
1633 |
} |
|
1634 |
if (dup) { |
|
1635 |
classfile_parse_error("Duplicate field name&signature in class file %s", |
|
34666 | 1636 |
CHECK); |
1 | 1637 |
} |
1638 |
} |
|
1639 |
} |
|
1640 |
||
1641 |
||
34666 | 1642 |
static void copy_u2_with_conversion(u2* dest, const u2* src, int length) { |
1 | 1643 |
while (length-- > 0) { |
1644 |
*dest++ = Bytes::get_Java_u2((u1*) (src++)); |
|
1645 |
} |
|
1646 |
} |
|
1647 |
||
34666 | 1648 |
const u2* ClassFileParser::parse_exception_table(const ClassFileStream* const cfs, |
1649 |
u4 code_length, |
|
1650 |
u4 exception_table_length, |
|
1651 |
TRAPS) { |
|
1652 |
assert(cfs != NULL, "invariant"); |
|
1653 |
||
1654 |
const u2* const exception_table_start = cfs->get_u2_buffer(); |
|
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1655 |
assert(exception_table_start != NULL, "null exception table"); |
34666 | 1656 |
|
1657 |
cfs->guarantee_more(8 * exception_table_length, CHECK_NULL); // start_pc, |
|
1658 |
// end_pc, |
|
1659 |
// handler_pc, |
|
1660 |
// catch_type_index |
|
1661 |
||
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1662 |
// Will check legal target after parsing code array in verifier. |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1663 |
if (_need_verify) { |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1664 |
for (unsigned int i = 0; i < exception_table_length; i++) { |
34666 | 1665 |
const u2 start_pc = cfs->get_u2_fast(); |
1666 |
const u2 end_pc = cfs->get_u2_fast(); |
|
1667 |
const u2 handler_pc = cfs->get_u2_fast(); |
|
1668 |
const u2 catch_type_index = cfs->get_u2_fast(); |
|
1 | 1669 |
guarantee_property((start_pc < end_pc) && (end_pc <= code_length), |
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1670 |
"Illegal exception table range in class file %s", |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1671 |
CHECK_NULL); |
1 | 1672 |
guarantee_property(handler_pc < code_length, |
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1673 |
"Illegal exception table handler in class file %s", |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1674 |
CHECK_NULL); |
1 | 1675 |
if (catch_type_index != 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1676 |
guarantee_property(valid_klass_reference_at(catch_type_index), |
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1677 |
"Catch type in exception table has bad constant type in class file %s", CHECK_NULL); |
1 | 1678 |
} |
1679 |
} |
|
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1680 |
} else { |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1681 |
cfs->skip_u2_fast(exception_table_length * 4); |
1 | 1682 |
} |
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
1683 |
return exception_table_start; |
1 | 1684 |
} |
1685 |
||
34666 | 1686 |
void ClassFileParser::parse_linenumber_table(u4 code_attribute_length, |
1687 |
u4 code_length, |
|
1688 |
CompressedLineNumberWriteStream**const write_stream, |
|
1689 |
TRAPS) { |
|
1690 |
||
1691 |
const ClassFileStream* const cfs = _stream; |
|
1 | 1692 |
unsigned int num_entries = cfs->get_u2(CHECK); |
1693 |
||
1694 |
// Each entry is a u2 start_pc, and a u2 line_number |
|
34666 | 1695 |
const unsigned int length_in_bytes = num_entries * (sizeof(u2) * 2); |
1 | 1696 |
|
1697 |
// Verify line number attribute and table length |
|
1698 |
check_property( |
|
1699 |
code_attribute_length == sizeof(u2) + length_in_bytes, |
|
1700 |
"LineNumberTable attribute has wrong length in class file %s", CHECK); |
|
1701 |
||
1702 |
cfs->guarantee_more(length_in_bytes, CHECK); |
|
1703 |
||
1704 |
if ((*write_stream) == NULL) { |
|
1705 |
if (length_in_bytes > fixed_buffer_size) { |
|
1706 |
(*write_stream) = new CompressedLineNumberWriteStream(length_in_bytes); |
|
1707 |
} else { |
|
1708 |
(*write_stream) = new CompressedLineNumberWriteStream( |
|
34666 | 1709 |
_linenumbertable_buffer, fixed_buffer_size); |
1 | 1710 |
} |
1711 |
} |
|
1712 |
||
1713 |
while (num_entries-- > 0) { |
|
34666 | 1714 |
const u2 bci = cfs->get_u2_fast(); // start_pc |
1715 |
const u2 line = cfs->get_u2_fast(); // line_number |
|
1 | 1716 |
guarantee_property(bci < code_length, |
1717 |
"Invalid pc in LineNumberTable in class file %s", CHECK); |
|
1718 |
(*write_stream)->write_pair(bci, line); |
|
1719 |
} |
|
1720 |
} |
|
1721 |
||
1722 |
||
28817
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1723 |
class LVT_Hash : public AllStatic { |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1724 |
public: |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1725 |
|
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1726 |
static bool equals(LocalVariableTableElement const& e0, LocalVariableTableElement const& e1) { |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1727 |
/* |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1728 |
* 3-tuple start_bci/length/slot has to be unique key, |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1729 |
* so the following comparison seems to be redundant: |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1730 |
* && elem->name_cp_index == entry->_elem->name_cp_index |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1731 |
*/ |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1732 |
return (e0.start_bci == e1.start_bci && |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1733 |
e0.length == e1.length && |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1734 |
e0.name_cp_index == e1.name_cp_index && |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1735 |
e0.slot == e1.slot); |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1736 |
} |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1737 |
|
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1738 |
static unsigned int hash(LocalVariableTableElement const& e0) { |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1739 |
unsigned int raw_hash = e0.start_bci; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1740 |
|
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1741 |
raw_hash = e0.length + raw_hash * 37; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1742 |
raw_hash = e0.name_cp_index + raw_hash * 37; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1743 |
raw_hash = e0.slot + raw_hash * 37; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1744 |
|
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1745 |
return raw_hash; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1746 |
} |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1747 |
}; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1748 |
|
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
1749 |
|
1 | 1750 |
// Class file LocalVariableTable elements. |
1751 |
class Classfile_LVT_Element VALUE_OBJ_CLASS_SPEC { |
|
1752 |
public: |
|
1753 |
u2 start_bci; |
|
1754 |
u2 length; |
|
1755 |
u2 name_cp_index; |
|
1756 |
u2 descriptor_cp_index; |
|
1757 |
u2 slot; |
|
1758 |
}; |
|
1759 |
||
34666 | 1760 |
static void copy_lvt_element(const Classfile_LVT_Element* const src, |
1761 |
LocalVariableTableElement* const lvt) { |
|
1 | 1762 |
lvt->start_bci = Bytes::get_Java_u2((u1*) &src->start_bci); |
1763 |
lvt->length = Bytes::get_Java_u2((u1*) &src->length); |
|
1764 |
lvt->name_cp_index = Bytes::get_Java_u2((u1*) &src->name_cp_index); |
|
1765 |
lvt->descriptor_cp_index = Bytes::get_Java_u2((u1*) &src->descriptor_cp_index); |
|
1766 |
lvt->signature_cp_index = 0; |
|
1767 |
lvt->slot = Bytes::get_Java_u2((u1*) &src->slot); |
|
1768 |
} |
|
1769 |
||
1770 |
// Function is used to parse both attributes: |
|
34666 | 1771 |
// LocalVariableTable (LVT) and LocalVariableTypeTable (LVTT) |
1772 |
const u2* ClassFileParser::parse_localvariable_table(const ClassFileStream* cfs, |
|
1773 |
u4 code_length, |
|
1774 |
u2 max_locals, |
|
1775 |
u4 code_attribute_length, |
|
1776 |
u2* const localvariable_table_length, |
|
1777 |
bool isLVTT, |
|
1778 |
TRAPS) { |
|
1779 |
const char* const tbl_name = (isLVTT) ? "LocalVariableTypeTable" : "LocalVariableTable"; |
|
1 | 1780 |
*localvariable_table_length = cfs->get_u2(CHECK_NULL); |
34666 | 1781 |
const unsigned int size = |
1782 |
(*localvariable_table_length) * sizeof(Classfile_LVT_Element) / sizeof(u2); |
|
1783 |
||
1784 |
const ConstantPool* const cp = _cp; |
|
1785 |
||
1 | 1786 |
// Verify local variable table attribute has right length |
1787 |
if (_need_verify) { |
|
1788 |
guarantee_property(code_attribute_length == (sizeof(*localvariable_table_length) + size * sizeof(u2)), |
|
1789 |
"%s has wrong length in class file %s", tbl_name, CHECK_NULL); |
|
1790 |
} |
|
34666 | 1791 |
|
1792 |
const u2* const localvariable_table_start = cfs->get_u2_buffer(); |
|
1 | 1793 |
assert(localvariable_table_start != NULL, "null local variable table"); |
1794 |
if (!_need_verify) { |
|
1795 |
cfs->skip_u2_fast(size); |
|
1796 |
} else { |
|
1797 |
cfs->guarantee_more(size * 2, CHECK_NULL); |
|
1798 |
for(int i = 0; i < (*localvariable_table_length); i++) { |
|
34666 | 1799 |
const u2 start_pc = cfs->get_u2_fast(); |
1800 |
const u2 length = cfs->get_u2_fast(); |
|
1801 |
const u2 name_index = cfs->get_u2_fast(); |
|
1802 |
const u2 descriptor_index = cfs->get_u2_fast(); |
|
1803 |
const u2 index = cfs->get_u2_fast(); |
|
1 | 1804 |
// Assign to a u4 to avoid overflow |
34666 | 1805 |
const u4 end_pc = (u4)start_pc + (u4)length; |
1 | 1806 |
|
1807 |
if (start_pc >= code_length) { |
|
1808 |
classfile_parse_error( |
|
1809 |
"Invalid start_pc %u in %s in class file %s", |
|
1810 |
start_pc, tbl_name, CHECK_NULL); |
|
1811 |
} |
|
1812 |
if (end_pc > code_length) { |
|
1813 |
classfile_parse_error( |
|
1814 |
"Invalid length %u in %s in class file %s", |
|
1815 |
length, tbl_name, CHECK_NULL); |
|
1816 |
} |
|
34666 | 1817 |
const int cp_size = cp->length(); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1818 |
guarantee_property(valid_symbol_at(name_index), |
1 | 1819 |
"Name index %u in %s has bad constant type in class file %s", |
1820 |
name_index, tbl_name, CHECK_NULL); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1821 |
guarantee_property(valid_symbol_at(descriptor_index), |
1 | 1822 |
"Signature index %u in %s has bad constant type in class file %s", |
1823 |
descriptor_index, tbl_name, CHECK_NULL); |
|
1824 |
||
34666 | 1825 |
const Symbol* const name = cp->symbol_at(name_index); |
1826 |
const Symbol* const sig = cp->symbol_at(descriptor_index); |
|
1 | 1827 |
verify_legal_field_name(name, CHECK_NULL); |
1828 |
u2 extra_slot = 0; |
|
1829 |
if (!isLVTT) { |
|
1830 |
verify_legal_field_signature(name, sig, CHECK_NULL); |
|
1831 |
||
1832 |
// 4894874: check special cases for double and long local variables |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1833 |
if (sig == vmSymbols::type_signature(T_DOUBLE) || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1834 |
sig == vmSymbols::type_signature(T_LONG)) { |
1 | 1835 |
extra_slot = 1; |
1836 |
} |
|
1837 |
} |
|
1838 |
guarantee_property((index + extra_slot) < max_locals, |
|
1839 |
"Invalid index %u in %s in class file %s", |
|
1840 |
index, tbl_name, CHECK_NULL); |
|
1841 |
} |
|
1842 |
} |
|
1843 |
return localvariable_table_start; |
|
1844 |
} |
|
1845 |
||
1846 |
||
34666 | 1847 |
void ClassFileParser::parse_type_array(u2 array_length, |
1848 |
u4 code_length, |
|
1849 |
u4* const u1_index, |
|
1850 |
u4* const u2_index, |
|
1851 |
u1* const u1_array, |
|
1852 |
u2* const u2_array, |
|
1853 |
TRAPS) { |
|
1854 |
const ClassFileStream* const cfs = _stream; |
|
1 | 1855 |
u2 index = 0; // index in the array with long/double occupying two slots |
1856 |
u4 i1 = *u1_index; |
|
1857 |
u4 i2 = *u2_index + 1; |
|
1858 |
for(int i = 0; i < array_length; i++) { |
|
34666 | 1859 |
const u1 tag = u1_array[i1++] = cfs->get_u1(CHECK); |
1 | 1860 |
index++; |
1861 |
if (tag == ITEM_Long || tag == ITEM_Double) { |
|
1862 |
index++; |
|
1863 |
} else if (tag == ITEM_Object) { |
|
34666 | 1864 |
const u2 class_index = u2_array[i2++] = cfs->get_u2(CHECK); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1865 |
guarantee_property(valid_klass_reference_at(class_index), |
1 | 1866 |
"Bad class index %u in StackMap in class file %s", |
1867 |
class_index, CHECK); |
|
1868 |
} else if (tag == ITEM_Uninitialized) { |
|
34666 | 1869 |
const u2 offset = u2_array[i2++] = cfs->get_u2(CHECK); |
1 | 1870 |
guarantee_property( |
1871 |
offset < code_length, |
|
1872 |
"Bad uninitialized type offset %u in StackMap in class file %s", |
|
1873 |
offset, CHECK); |
|
1874 |
} else { |
|
1875 |
guarantee_property( |
|
1876 |
tag <= (u1)ITEM_Uninitialized, |
|
1877 |
"Unknown variable type %u in StackMap in class file %s", |
|
1878 |
tag, CHECK); |
|
1879 |
} |
|
1880 |
} |
|
1881 |
u2_array[*u2_index] = index; |
|
1882 |
*u1_index = i1; |
|
1883 |
*u2_index = i2; |
|
1884 |
} |
|
1885 |
||
34666 | 1886 |
static const u1* parse_stackmap_table(const ClassFileStream* const cfs, |
1887 |
u4 code_attribute_length, |
|
1888 |
bool need_verify, |
|
1889 |
TRAPS) { |
|
1890 |
assert(cfs != NULL, "invariant"); |
|
1891 |
||
1892 |
if (0 == code_attribute_length) { |
|
1 | 1893 |
return NULL; |
34666 | 1894 |
} |
1895 |
||
1896 |
const u1* const stackmap_table_start = cfs->get_u1_buffer(); |
|
1 | 1897 |
assert(stackmap_table_start != NULL, "null stackmap table"); |
1898 |
||
1899 |
// check code_attribute_length first |
|
34666 | 1900 |
cfs->skip_u1(code_attribute_length, CHECK_NULL); |
1901 |
||
1902 |
if (!need_verify && !DumpSharedSpaces) { |
|
1 | 1903 |
return NULL; |
1904 |
} |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1905 |
return stackmap_table_start; |
1 | 1906 |
} |
1907 |
||
34666 | 1908 |
const u2* ClassFileParser::parse_checked_exceptions(const ClassFileStream* const cfs, |
1909 |
u2* const checked_exceptions_length, |
|
1910 |
u4 method_attribute_length, |
|
1911 |
TRAPS) { |
|
1912 |
assert(cfs != NULL, "invariant"); |
|
1913 |
assert(checked_exceptions_length != NULL, "invariant"); |
|
1914 |
||
1 | 1915 |
cfs->guarantee_more(2, CHECK_NULL); // checked_exceptions_length |
1916 |
*checked_exceptions_length = cfs->get_u2_fast(); |
|
34666 | 1917 |
const unsigned int size = |
1918 |
(*checked_exceptions_length) * sizeof(CheckedExceptionElement) / sizeof(u2); |
|
1919 |
const u2* const checked_exceptions_start = cfs->get_u2_buffer(); |
|
1 | 1920 |
assert(checked_exceptions_start != NULL, "null checked exceptions"); |
1921 |
if (!_need_verify) { |
|
1922 |
cfs->skip_u2_fast(size); |
|
1923 |
} else { |
|
1924 |
// Verify each value in the checked exception table |
|
1925 |
u2 checked_exception; |
|
34666 | 1926 |
const u2 len = *checked_exceptions_length; |
1 | 1927 |
cfs->guarantee_more(2 * len, CHECK_NULL); |
1928 |
for (int i = 0; i < len; i++) { |
|
1929 |
checked_exception = cfs->get_u2_fast(); |
|
1930 |
check_property( |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
1931 |
valid_klass_reference_at(checked_exception), |
1 | 1932 |
"Exception name has bad type at constant pool %u in class file %s", |
1933 |
checked_exception, CHECK_NULL); |
|
1934 |
} |
|
1935 |
} |
|
1936 |
// check exceptions attribute length |
|
1937 |
if (_need_verify) { |
|
1938 |
guarantee_property(method_attribute_length == (sizeof(*checked_exceptions_length) + |
|
1939 |
sizeof(u2) * size), |
|
1940 |
"Exceptions attribute has wrong length in class file %s", CHECK_NULL); |
|
1941 |
} |
|
1942 |
return checked_exceptions_start; |
|
1943 |
} |
|
1944 |
||
34666 | 1945 |
void ClassFileParser::throwIllegalSignature(const char* type, |
1946 |
const Symbol* name, |
|
1947 |
const Symbol* sig, |
|
1948 |
TRAPS) const { |
|
1949 |
assert(name != NULL, "invariant"); |
|
1950 |
assert(sig != NULL, "invariant"); |
|
1951 |
||
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1952 |
ResourceMark rm(THREAD); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1953 |
Exceptions::fthrow(THREAD_AND_LOCATION, |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1954 |
vmSymbols::java_lang_ClassFormatError(), |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1955 |
"%s \"%s\" in class %s has illegal signature \"%s\"", type, |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1956 |
name->as_C_string(), _class_name->as_C_string(), sig->as_C_string()); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1957 |
} |
1 | 1958 |
|
34666 | 1959 |
AnnotationCollector::ID |
1960 |
AnnotationCollector::annotation_index(const ClassLoaderData* loader_data, |
|
1961 |
const Symbol* name) { |
|
1962 |
const vmSymbols::SID sid = vmSymbols::find_sid(name); |
|
15244
83447fffce1e
8006758: LinkResolver assertion (caused by @Contended changes)
kmo
parents:
15221
diff
changeset
|
1963 |
// Privileged code can use all annotations. Other code silently drops some. |
16617
6235d2c7549f
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
15935
diff
changeset
|
1964 |
const bool privileged = loader_data->is_the_null_class_loader_data() || |
6235d2c7549f
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
15935
diff
changeset
|
1965 |
loader_data->is_ext_class_loader_data() || |
6235d2c7549f
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
15935
diff
changeset
|
1966 |
loader_data->is_anonymous(); |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
1967 |
switch (sid) { |
34666 | 1968 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_reflect_CallerSensitive_signature): { |
1969 |
if (_location != _in_method) break; // only allow for methods |
|
1970 |
if (!privileged) break; // only allow in privileged code |
|
1971 |
return _method_CallerSensitive; |
|
1972 |
} |
|
1973 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_ForceInline_signature): { |
|
1974 |
if (_location != _in_method) break; // only allow for methods |
|
1975 |
if (!privileged) break; // only allow in privileged code |
|
1976 |
return _method_ForceInline; |
|
1977 |
} |
|
1978 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_DontInline_signature): { |
|
1979 |
if (_location != _in_method) break; // only allow for methods |
|
1980 |
if (!privileged) break; // only allow in privileged code |
|
1981 |
return _method_DontInline; |
|
1982 |
} |
|
1983 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_InjectedProfile_signature): { |
|
1984 |
if (_location != _in_method) break; // only allow for methods |
|
1985 |
if (!privileged) break; // only allow in privileged code |
|
1986 |
return _method_InjectedProfile; |
|
1987 |
} |
|
1988 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Compiled_signature): { |
|
1989 |
if (_location != _in_method) break; // only allow for methods |
|
1990 |
if (!privileged) break; // only allow in privileged code |
|
1991 |
return _method_LambdaForm_Compiled; |
|
1992 |
} |
|
1993 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_LambdaForm_Hidden_signature): { |
|
1994 |
if (_location != _in_method) break; // only allow for methods |
|
1995 |
if (!privileged) break; // only allow in privileged code |
|
1996 |
return _method_LambdaForm_Hidden; |
|
1997 |
} |
|
1998 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_HotSpotIntrinsicCandidate_signature): { |
|
1999 |
if (_location != _in_method) break; // only allow for methods |
|
2000 |
if (!privileged) break; // only allow in privileged code |
|
2001 |
return _method_HotSpotIntrinsicCandidate; |
|
2002 |
} |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32824
diff
changeset
|
2003 |
#if INCLUDE_JVMCI |
34666 | 2004 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_vm_ci_hotspot_Stable_signature): { |
2005 |
if (_location != _in_field) break; // only allow for fields |
|
2006 |
if (!privileged) break; // only allow in privileged code |
|
2007 |
return _field_Stable; |
|
2008 |
} |
|
33160
c59f1676d27e
8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents:
32824
diff
changeset
|
2009 |
#endif |
34666 | 2010 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_Stable_signature): { |
2011 |
if (_location != _in_field) break; // only allow for fields |
|
2012 |
if (!privileged) break; // only allow in privileged code |
|
2013 |
return _field_Stable; |
|
2014 |
} |
|
2015 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_Contended_signature): { |
|
2016 |
if (_location != _in_field && _location != _in_class) { |
|
2017 |
break; // only allow for fields and classes |
|
2018 |
} |
|
2019 |
if (!EnableContended || (RestrictContended && !privileged)) { |
|
2020 |
break; // honor privileges |
|
2021 |
} |
|
2022 |
return _jdk_internal_vm_annotation_Contended; |
|
2023 |
} |
|
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2024 |
case vmSymbols::VM_SYMBOL_ENUM_NAME(jdk_internal_vm_annotation_ReservedStackAccess_signature): { |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2025 |
if (_location != _in_method) break; // only allow for methods |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2026 |
if (RestrictReservedStack && !privileged) break; // honor privileges |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2027 |
return _jdk_internal_vm_annotation_ReservedStackAccess; |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2028 |
} |
34666 | 2029 |
default: { |
2030 |
break; |
|
2031 |
} |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2032 |
} |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2033 |
return AnnotationCollector::_unknown; |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2034 |
} |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2035 |
|
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2036 |
void ClassFileParser::FieldAnnotationCollector::apply_to(FieldInfo* f) { |
15193
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
2037 |
if (is_contended()) |
8e6b5694267f
8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents:
15185
diff
changeset
|
2038 |
f->set_contended_group(contended_group()); |
19770
7cb9f982ea81
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
19681
diff
changeset
|
2039 |
if (is_stable()) |
7cb9f982ea81
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
19681
diff
changeset
|
2040 |
f->set_stable(true); |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2041 |
} |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2042 |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2043 |
ClassFileParser::FieldAnnotationCollector::~FieldAnnotationCollector() { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2044 |
// If there's an error deallocate metadata for field annotations |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2045 |
MetadataFactory::free_array<u1>(_loader_data, _field_annotations); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2046 |
MetadataFactory::free_array<u1>(_loader_data, _field_type_annotations); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2047 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2048 |
|
34666 | 2049 |
void MethodAnnotationCollector::apply_to(methodHandle m) { |
16617
6235d2c7549f
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
15935
diff
changeset
|
2050 |
if (has_annotation(_method_CallerSensitive)) |
6235d2c7549f
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
15935
diff
changeset
|
2051 |
m->set_caller_sensitive(true); |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2052 |
if (has_annotation(_method_ForceInline)) |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2053 |
m->set_force_inline(true); |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13296
diff
changeset
|
2054 |
if (has_annotation(_method_DontInline)) |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13296
diff
changeset
|
2055 |
m->set_dont_inline(true); |
31228
8e427370cdd1
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
30764
diff
changeset
|
2056 |
if (has_annotation(_method_InjectedProfile)) |
8e427370cdd1
8074551: GWT can be marked non-compilable due to deopt count pollution
vlivanov
parents:
30764
diff
changeset
|
2057 |
m->set_has_injected_profile(true); |
13391
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13296
diff
changeset
|
2058 |
if (has_annotation(_method_LambdaForm_Compiled) && m->intrinsic_id() == vmIntrinsics::_none) |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13296
diff
changeset
|
2059 |
m->set_intrinsic_id(vmIntrinsics::_compiledLambdaForm); |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13296
diff
changeset
|
2060 |
if (has_annotation(_method_LambdaForm_Hidden)) |
30245956af37
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13296
diff
changeset
|
2061 |
m->set_hidden(true); |
31587
e48945b7849c
8076112: Add @HotSpotIntrinsicCandidate annotation to indicate methods for which Java Runtime has intrinsics
zmajo
parents:
31402
diff
changeset
|
2062 |
if (has_annotation(_method_HotSpotIntrinsicCandidate) && !m->is_synthetic()) |
e48945b7849c
8076112: Add @HotSpotIntrinsicCandidate annotation to indicate methods for which Java Runtime has intrinsics
zmajo
parents:
31402
diff
changeset
|
2063 |
m->set_intrinsic_candidate(true); |
35071
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2064 |
if (has_annotation(_jdk_internal_vm_annotation_ReservedStackAccess)) |
a0910b1d3e0d
8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents:
34666
diff
changeset
|
2065 |
m->set_has_reserved_stack_access(true); |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2066 |
} |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2067 |
|
34666 | 2068 |
void ClassFileParser::ClassAnnotationCollector::apply_to(InstanceKlass* ik) { |
2069 |
assert(ik != NULL, "invariant"); |
|
2070 |
ik->set_is_contended(is_contended()); |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2071 |
} |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2072 |
|
1 | 2073 |
#define MAX_ARGS_SIZE 255 |
2074 |
#define MAX_CODE_SIZE 65535 |
|
2075 |
#define INITIAL_MAX_LVT_NUMBER 256 |
|
2076 |
||
15601 | 2077 |
/* Copy class file LVT's/LVTT's into the HotSpot internal LVT. |
2078 |
* |
|
2079 |
* Rules for LVT's and LVTT's are: |
|
2080 |
* - There can be any number of LVT's and LVTT's. |
|
2081 |
* - If there are n LVT's, it is the same as if there was just |
|
2082 |
* one LVT containing all the entries from the n LVT's. |
|
2083 |
* - There may be no more than one LVT entry per local variable. |
|
2084 |
* Two LVT entries are 'equal' if these fields are the same: |
|
2085 |
* start_pc, length, name, slot |
|
2086 |
* - There may be no more than one LVTT entry per each LVT entry. |
|
2087 |
* Each LVTT entry has to match some LVT entry. |
|
2088 |
* - HotSpot internal LVT keeps natural ordering of class file LVT entries. |
|
2089 |
*/ |
|
34666 | 2090 |
void ClassFileParser::copy_localvariable_table(const ConstMethod* cm, |
15601 | 2091 |
int lvt_cnt, |
34666 | 2092 |
u2* const localvariable_table_length, |
2093 |
const u2**const localvariable_table_start, |
|
15601 | 2094 |
int lvtt_cnt, |
34666 | 2095 |
u2* const localvariable_type_table_length, |
2096 |
const u2**const localvariable_type_table_start, |
|
15601 | 2097 |
TRAPS) { |
2098 |
||
28817
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2099 |
ResourceMark rm(THREAD); |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2100 |
|
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2101 |
typedef ResourceHashtable<LocalVariableTableElement, LocalVariableTableElement*, |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2102 |
&LVT_Hash::hash, &LVT_Hash::equals> LVT_HashTable; |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2103 |
|
34666 | 2104 |
LVT_HashTable* const table = new LVT_HashTable(); |
15601 | 2105 |
|
2106 |
// To fill LocalVariableTable in |
|
34666 | 2107 |
const Classfile_LVT_Element* cf_lvt; |
15601 | 2108 |
LocalVariableTableElement* lvt = cm->localvariable_table_start(); |
2109 |
||
2110 |
for (int tbl_no = 0; tbl_no < lvt_cnt; tbl_no++) { |
|
2111 |
cf_lvt = (Classfile_LVT_Element *) localvariable_table_start[tbl_no]; |
|
2112 |
for (int idx = 0; idx < localvariable_table_length[tbl_no]; idx++, lvt++) { |
|
2113 |
copy_lvt_element(&cf_lvt[idx], lvt); |
|
28817
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2114 |
// If no duplicates, add LVT elem in hashtable. |
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2115 |
if (table->put(*lvt, lvt) == false |
15601 | 2116 |
&& _need_verify |
2117 |
&& _major_version >= JAVA_1_5_VERSION) { |
|
2118 |
classfile_parse_error("Duplicated LocalVariableTable attribute " |
|
2119 |
"entry for '%s' in class file %s", |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2120 |
_cp->symbol_at(lvt->name_cp_index)->as_utf8(), |
15601 | 2121 |
CHECK); |
2122 |
} |
|
2123 |
} |
|
2124 |
} |
|
2125 |
||
2126 |
// To merge LocalVariableTable and LocalVariableTypeTable |
|
34666 | 2127 |
const Classfile_LVT_Element* cf_lvtt; |
15601 | 2128 |
LocalVariableTableElement lvtt_elem; |
2129 |
||
2130 |
for (int tbl_no = 0; tbl_no < lvtt_cnt; tbl_no++) { |
|
2131 |
cf_lvtt = (Classfile_LVT_Element *) localvariable_type_table_start[tbl_no]; |
|
2132 |
for (int idx = 0; idx < localvariable_type_table_length[tbl_no]; idx++) { |
|
2133 |
copy_lvt_element(&cf_lvtt[idx], &lvtt_elem); |
|
28817
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2134 |
LocalVariableTableElement** entry = table->get(lvtt_elem); |
15601 | 2135 |
if (entry == NULL) { |
2136 |
if (_need_verify) { |
|
2137 |
classfile_parse_error("LVTT entry for '%s' in class file %s " |
|
2138 |
"does not match any LVT entry", |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2139 |
_cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(), |
15601 | 2140 |
CHECK); |
2141 |
} |
|
28817
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2142 |
} else if ((*entry)->signature_cp_index != 0 && _need_verify) { |
15601 | 2143 |
classfile_parse_error("Duplicated LocalVariableTypeTable attribute " |
2144 |
"entry for '%s' in class file %s", |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2145 |
_cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(), |
15601 | 2146 |
CHECK); |
2147 |
} else { |
|
2148 |
// to add generic signatures into LocalVariableTable |
|
28817
09a44329d68d
8049632: JDK 1.8.0 b132 :Linux x64 : Crash in ClassFileParser::copy_localvariable_table(..)
coleenp
parents:
28027
diff
changeset
|
2149 |
(*entry)->signature_cp_index = lvtt_elem.descriptor_cp_index; |
15601 | 2150 |
} |
2151 |
} |
|
2152 |
} |
|
2153 |
} |
|
2154 |
||
2155 |
||
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2156 |
void ClassFileParser::copy_method_annotations(ConstMethod* cm, |
34666 | 2157 |
const u1* runtime_visible_annotations, |
15601 | 2158 |
int runtime_visible_annotations_length, |
34666 | 2159 |
const u1* runtime_invisible_annotations, |
15601 | 2160 |
int runtime_invisible_annotations_length, |
34666 | 2161 |
const u1* runtime_visible_parameter_annotations, |
15601 | 2162 |
int runtime_visible_parameter_annotations_length, |
34666 | 2163 |
const u1* runtime_invisible_parameter_annotations, |
15601 | 2164 |
int runtime_invisible_parameter_annotations_length, |
34666 | 2165 |
const u1* runtime_visible_type_annotations, |
15601 | 2166 |
int runtime_visible_type_annotations_length, |
34666 | 2167 |
const u1* runtime_invisible_type_annotations, |
15601 | 2168 |
int runtime_invisible_type_annotations_length, |
34666 | 2169 |
const u1* annotation_default, |
15601 | 2170 |
int annotation_default_length, |
2171 |
TRAPS) { |
|
2172 |
||
2173 |
AnnotationArray* a; |
|
2174 |
||
2175 |
if (runtime_visible_annotations_length + |
|
2176 |
runtime_invisible_annotations_length > 0) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2177 |
a = assemble_annotations(runtime_visible_annotations, |
15601 | 2178 |
runtime_visible_annotations_length, |
2179 |
runtime_invisible_annotations, |
|
2180 |
runtime_invisible_annotations_length, |
|
2181 |
CHECK); |
|
2182 |
cm->set_method_annotations(a); |
|
2183 |
} |
|
2184 |
||
2185 |
if (runtime_visible_parameter_annotations_length + |
|
2186 |
runtime_invisible_parameter_annotations_length > 0) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2187 |
a = assemble_annotations(runtime_visible_parameter_annotations, |
15601 | 2188 |
runtime_visible_parameter_annotations_length, |
2189 |
runtime_invisible_parameter_annotations, |
|
2190 |
runtime_invisible_parameter_annotations_length, |
|
2191 |
CHECK); |
|
2192 |
cm->set_parameter_annotations(a); |
|
2193 |
} |
|
2194 |
||
2195 |
if (annotation_default_length > 0) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2196 |
a = assemble_annotations(annotation_default, |
15601 | 2197 |
annotation_default_length, |
2198 |
NULL, |
|
2199 |
0, |
|
2200 |
CHECK); |
|
2201 |
cm->set_default_annotations(a); |
|
2202 |
} |
|
2203 |
||
2204 |
if (runtime_visible_type_annotations_length + |
|
2205 |
runtime_invisible_type_annotations_length > 0) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2206 |
a = assemble_annotations(runtime_visible_type_annotations, |
15601 | 2207 |
runtime_visible_type_annotations_length, |
2208 |
runtime_invisible_type_annotations, |
|
2209 |
runtime_invisible_type_annotations_length, |
|
2210 |
CHECK); |
|
2211 |
cm->set_type_annotations(a); |
|
2212 |
} |
|
2213 |
} |
|
2214 |
||
2215 |
||
1 | 2216 |
// Note: the parse_method below is big and clunky because all parsing of the code and exceptions |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2217 |
// attribute is inlined. This is cumbersome to avoid since we inline most of the parts in the |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2218 |
// Method* to save footprint, so we only know the size of the resulting Method* when the |
1 | 2219 |
// entire method attribute is parsed. |
2220 |
// |
|
2221 |
// The promoted_flags parameter is used to pass relevant access_flags |
|
2222 |
// from the method back up to the containing klass. These flag values |
|
2223 |
// are added to klass's access_flags. |
|
2224 |
||
34666 | 2225 |
Method* ClassFileParser::parse_method(const ClassFileStream* const cfs, |
2226 |
bool is_interface, |
|
2227 |
const ConstantPool* cp, |
|
2228 |
AccessFlags* const promoted_flags, |
|
2229 |
TRAPS) { |
|
2230 |
assert(cfs != NULL, "invariant"); |
|
2231 |
assert(cp != NULL, "invariant"); |
|
2232 |
assert(promoted_flags != NULL, "invariant"); |
|
2233 |
||
1 | 2234 |
ResourceMark rm(THREAD); |
34666 | 2235 |
// Parse fixed parts: |
2236 |
// access_flags, name_index, descriptor_index, attributes_count |
|
2237 |
cfs->guarantee_more(8, CHECK_NULL); |
|
1 | 2238 |
|
2239 |
int flags = cfs->get_u2_fast(); |
|
34666 | 2240 |
const u2 name_index = cfs->get_u2_fast(); |
2241 |
const int cp_size = cp->length(); |
|
1 | 2242 |
check_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2243 |
valid_symbol_at(name_index), |
1 | 2244 |
"Illegal constant pool index %u for method name in class file %s", |
34666 | 2245 |
name_index, CHECK_NULL); |
2246 |
const Symbol* const name = cp->symbol_at(name_index); |
|
2247 |
verify_legal_method_name(name, CHECK_NULL); |
|
2248 |
||
2249 |
const u2 signature_index = cfs->get_u2_fast(); |
|
1 | 2250 |
guarantee_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2251 |
valid_symbol_at(signature_index), |
1 | 2252 |
"Illegal constant pool index %u for method signature in class file %s", |
34666 | 2253 |
signature_index, CHECK_NULL); |
2254 |
const Symbol* const signature = cp->symbol_at(signature_index); |
|
2255 |
||
1 | 2256 |
if (name == vmSymbols::class_initializer_name()) { |
8653
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2257 |
// We ignore the other access flags for a valid class initializer. |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2258 |
// (JVM Spec 2nd ed., chapter 4.6) |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2259 |
if (_major_version < 51) { // backward compatibility |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2260 |
flags = JVM_ACC_STATIC; |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2261 |
} else if ((flags & JVM_ACC_STATIC) == JVM_ACC_STATIC) { |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2262 |
flags &= JVM_ACC_STATIC | JVM_ACC_STRICT; |
32824
3b686e54dece
8135208: VM permits illegal <clinit> access_flags, versions 51-52
hseigel
parents:
31867
diff
changeset
|
2263 |
} else { |
34666 | 2264 |
classfile_parse_error("Method <clinit> is not static in class file %s", CHECK_NULL); |
8653
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
2265 |
} |
1 | 2266 |
} else { |
34666 | 2267 |
verify_legal_method_modifiers(flags, is_interface, name, CHECK_NULL); |
1 | 2268 |
} |
2269 |
||
33207
edc4431940b2
8139069: JVM should throw ClassFormatError for <init> methods in interfaces
hseigel
parents:
33105
diff
changeset
|
2270 |
if (name == vmSymbols::object_initializer_name() && is_interface) { |
34666 | 2271 |
classfile_parse_error("Interface cannot have a method named <init>, class file %s", CHECK_NULL); |
33207
edc4431940b2
8139069: JVM should throw ClassFormatError for <init> methods in interfaces
hseigel
parents:
33105
diff
changeset
|
2272 |
} |
edc4431940b2
8139069: JVM should throw ClassFormatError for <init> methods in interfaces
hseigel
parents:
33105
diff
changeset
|
2273 |
|
1 | 2274 |
int args_size = -1; // only used when _need_verify is true |
2275 |
if (_need_verify) { |
|
2276 |
args_size = ((flags & JVM_ACC_STATIC) ? 0 : 1) + |
|
34666 | 2277 |
verify_legal_method_signature(name, signature, CHECK_NULL); |
1 | 2278 |
if (args_size > MAX_ARGS_SIZE) { |
34666 | 2279 |
classfile_parse_error("Too many arguments in method signature in class file %s", CHECK_NULL); |
1 | 2280 |
} |
2281 |
} |
|
2282 |
||
34666 | 2283 |
AccessFlags access_flags(flags & JVM_RECOGNIZED_METHOD_MODIFIERS); |
1 | 2284 |
|
2285 |
// Default values for code and exceptions attribute elements |
|
2286 |
u2 max_stack = 0; |
|
2287 |
u2 max_locals = 0; |
|
2288 |
u4 code_length = 0; |
|
34666 | 2289 |
const u1* code_start = 0; |
1 | 2290 |
u2 exception_table_length = 0; |
34666 | 2291 |
const u2* exception_table_start = NULL; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2292 |
Array<int>* exception_handlers = Universe::the_empty_int_array(); |
1 | 2293 |
u2 checked_exceptions_length = 0; |
34666 | 2294 |
const u2* checked_exceptions_start = NULL; |
1 | 2295 |
CompressedLineNumberWriteStream* linenumber_table = NULL; |
2296 |
int linenumber_table_length = 0; |
|
2297 |
int total_lvt_length = 0; |
|
2298 |
u2 lvt_cnt = 0; |
|
2299 |
u2 lvtt_cnt = 0; |
|
2300 |
bool lvt_allocated = false; |
|
2301 |
u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER; |
|
2302 |
u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER; |
|
31851
ec2f9350c499
8079825: Uninitialised variable in hotspot/src/share/vm & cpu/x86/vm (runtime)
ccheung
parents:
31778
diff
changeset
|
2303 |
u2* localvariable_table_length = NULL; |
34666 | 2304 |
const u2** localvariable_table_start = NULL; |
31851
ec2f9350c499
8079825: Uninitialised variable in hotspot/src/share/vm & cpu/x86/vm (runtime)
ccheung
parents:
31778
diff
changeset
|
2305 |
u2* localvariable_type_table_length = NULL; |
34666 | 2306 |
const u2** localvariable_type_table_start = NULL; |
27612
7201412afbd0
8058313: Mismatch of method descriptor and MethodParameters.parameters_count should cause MalformedParameterException
emc
parents:
27402
diff
changeset
|
2307 |
int method_parameters_length = -1; |
34666 | 2308 |
const u1* method_parameters_data = NULL; |
15464
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2309 |
bool method_parameters_seen = false; |
1 | 2310 |
bool parsed_code_attribute = false; |
2311 |
bool parsed_checked_exceptions_attribute = false; |
|
2312 |
bool parsed_stackmap_attribute = false; |
|
2313 |
// stackmap attribute - JDK1.5 |
|
34666 | 2314 |
const u1* stackmap_data = NULL; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2315 |
int stackmap_data_length = 0; |
1 | 2316 |
u2 generic_signature_index = 0; |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2317 |
MethodAnnotationCollector parsed_annotations; |
34666 | 2318 |
const u1* runtime_visible_annotations = NULL; |
1 | 2319 |
int runtime_visible_annotations_length = 0; |
34666 | 2320 |
const u1* runtime_invisible_annotations = NULL; |
1 | 2321 |
int runtime_invisible_annotations_length = 0; |
34666 | 2322 |
const u1* runtime_visible_parameter_annotations = NULL; |
1 | 2323 |
int runtime_visible_parameter_annotations_length = 0; |
34666 | 2324 |
const u1* runtime_invisible_parameter_annotations = NULL; |
1 | 2325 |
int runtime_invisible_parameter_annotations_length = 0; |
34666 | 2326 |
const u1* runtime_visible_type_annotations = NULL; |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2327 |
int runtime_visible_type_annotations_length = 0; |
34666 | 2328 |
const u1* runtime_invisible_type_annotations = NULL; |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2329 |
int runtime_invisible_type_annotations_length = 0; |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2330 |
bool runtime_invisible_annotations_exists = false; |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2331 |
bool runtime_invisible_type_annotations_exists = false; |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2332 |
bool runtime_invisible_parameter_annotations_exists = false; |
34666 | 2333 |
const u1* annotation_default = NULL; |
1 | 2334 |
int annotation_default_length = 0; |
2335 |
||
2336 |
// Parse code and exceptions attribute |
|
2337 |
u2 method_attributes_count = cfs->get_u2_fast(); |
|
2338 |
while (method_attributes_count--) { |
|
34666 | 2339 |
cfs->guarantee_more(6, CHECK_NULL); // method_attribute_name_index, method_attribute_length |
2340 |
const u2 method_attribute_name_index = cfs->get_u2_fast(); |
|
2341 |
const u4 method_attribute_length = cfs->get_u4_fast(); |
|
1 | 2342 |
check_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2343 |
valid_symbol_at(method_attribute_name_index), |
1 | 2344 |
"Invalid method attribute name index %u in class file %s", |
34666 | 2345 |
method_attribute_name_index, CHECK_NULL); |
2346 |
||
2347 |
const Symbol* const method_attribute_name = cp->symbol_at(method_attribute_name_index); |
|
1 | 2348 |
if (method_attribute_name == vmSymbols::tag_code()) { |
2349 |
// Parse Code attribute |
|
2350 |
if (_need_verify) { |
|
14385 | 2351 |
guarantee_property( |
2352 |
!access_flags.is_native() && !access_flags.is_abstract(), |
|
1 | 2353 |
"Code attribute in native or abstract methods in class file %s", |
34666 | 2354 |
CHECK_NULL); |
1 | 2355 |
} |
2356 |
if (parsed_code_attribute) { |
|
34666 | 2357 |
classfile_parse_error("Multiple Code attributes in class file %s", |
2358 |
CHECK_NULL); |
|
1 | 2359 |
} |
2360 |
parsed_code_attribute = true; |
|
2361 |
||
2362 |
// Stack size, locals size, and code size |
|
2363 |
if (_major_version == 45 && _minor_version <= 2) { |
|
34666 | 2364 |
cfs->guarantee_more(4, CHECK_NULL); |
1 | 2365 |
max_stack = cfs->get_u1_fast(); |
2366 |
max_locals = cfs->get_u1_fast(); |
|
2367 |
code_length = cfs->get_u2_fast(); |
|
2368 |
} else { |
|
34666 | 2369 |
cfs->guarantee_more(8, CHECK_NULL); |
1 | 2370 |
max_stack = cfs->get_u2_fast(); |
2371 |
max_locals = cfs->get_u2_fast(); |
|
2372 |
code_length = cfs->get_u4_fast(); |
|
2373 |
} |
|
2374 |
if (_need_verify) { |
|
2375 |
guarantee_property(args_size <= max_locals, |
|
34666 | 2376 |
"Arguments can't fit into locals in class file %s", |
2377 |
CHECK_NULL); |
|
1 | 2378 |
guarantee_property(code_length > 0 && code_length <= MAX_CODE_SIZE, |
2379 |
"Invalid method Code length %u in class file %s", |
|
34666 | 2380 |
code_length, CHECK_NULL); |
1 | 2381 |
} |
2382 |
// Code pointer |
|
2383 |
code_start = cfs->get_u1_buffer(); |
|
2384 |
assert(code_start != NULL, "null code start"); |
|
34666 | 2385 |
cfs->guarantee_more(code_length, CHECK_NULL); |
1 | 2386 |
cfs->skip_u1_fast(code_length); |
2387 |
||
2388 |
// Exception handler table |
|
34666 | 2389 |
cfs->guarantee_more(2, CHECK_NULL); // exception_table_length |
1 | 2390 |
exception_table_length = cfs->get_u2_fast(); |
2391 |
if (exception_table_length > 0) { |
|
34666 | 2392 |
exception_table_start = parse_exception_table(cfs, |
2393 |
code_length, |
|
2394 |
exception_table_length, |
|
2395 |
CHECK_NULL); |
|
1 | 2396 |
} |
2397 |
||
2398 |
// Parse additional attributes in code attribute |
|
34666 | 2399 |
cfs->guarantee_more(2, CHECK_NULL); // code_attributes_count |
1 | 2400 |
u2 code_attributes_count = cfs->get_u2_fast(); |
339
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2401 |
|
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2402 |
unsigned int calculated_attribute_length = 0; |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2403 |
|
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2404 |
if (_major_version > 45 || (_major_version == 45 && _minor_version > 2)) { |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2405 |
calculated_attribute_length = |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2406 |
sizeof(max_stack) + sizeof(max_locals) + sizeof(code_length); |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2407 |
} else { |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2408 |
// max_stack, locals and length are smaller in pre-version 45.2 classes |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2409 |
calculated_attribute_length = sizeof(u1) + sizeof(u1) + sizeof(u2); |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2410 |
} |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2411 |
calculated_attribute_length += |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2412 |
code_length + |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2413 |
sizeof(exception_table_length) + |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2414 |
sizeof(code_attributes_count) + |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2415 |
exception_table_length * |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2416 |
( sizeof(u2) + // start_pc |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2417 |
sizeof(u2) + // end_pc |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2418 |
sizeof(u2) + // handler_pc |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
2419 |
sizeof(u2) ); // catch_type_index |
1 | 2420 |
|
2421 |
while (code_attributes_count--) { |
|
34666 | 2422 |
cfs->guarantee_more(6, CHECK_NULL); // code_attribute_name_index, code_attribute_length |
2423 |
const u2 code_attribute_name_index = cfs->get_u2_fast(); |
|
2424 |
const u4 code_attribute_length = cfs->get_u4_fast(); |
|
1 | 2425 |
calculated_attribute_length += code_attribute_length + |
2426 |
sizeof(code_attribute_name_index) + |
|
2427 |
sizeof(code_attribute_length); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2428 |
check_property(valid_symbol_at(code_attribute_name_index), |
1 | 2429 |
"Invalid code attribute name index %u in class file %s", |
2430 |
code_attribute_name_index, |
|
34666 | 2431 |
CHECK_NULL); |
1 | 2432 |
if (LoadLineNumberTables && |
34666 | 2433 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_line_number_table()) { |
1 | 2434 |
// Parse and compress line number table |
34666 | 2435 |
parse_linenumber_table(code_attribute_length, |
2436 |
code_length, |
|
2437 |
&linenumber_table, |
|
2438 |
CHECK_NULL); |
|
1 | 2439 |
|
2440 |
} else if (LoadLocalVariableTables && |
|
34666 | 2441 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_table()) { |
1 | 2442 |
// Parse local variable table |
2443 |
if (!lvt_allocated) { |
|
2444 |
localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
2445 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
2446 |
localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
34666 | 2447 |
THREAD, const u2*, INITIAL_MAX_LVT_NUMBER); |
1 | 2448 |
localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
2449 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
2450 |
localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
34666 | 2451 |
THREAD, const u2*, INITIAL_MAX_LVT_NUMBER); |
1 | 2452 |
lvt_allocated = true; |
2453 |
} |
|
2454 |
if (lvt_cnt == max_lvt_cnt) { |
|
2455 |
max_lvt_cnt <<= 1; |
|
20668 | 2456 |
localvariable_table_length = REALLOC_RESOURCE_ARRAY(u2, localvariable_table_length, lvt_cnt, max_lvt_cnt); |
34666 | 2457 |
localvariable_table_start = REALLOC_RESOURCE_ARRAY(const u2*, localvariable_table_start, lvt_cnt, max_lvt_cnt); |
1 | 2458 |
} |
2459 |
localvariable_table_start[lvt_cnt] = |
|
34666 | 2460 |
parse_localvariable_table(cfs, |
2461 |
code_length, |
|
1 | 2462 |
max_locals, |
2463 |
code_attribute_length, |
|
2464 |
&localvariable_table_length[lvt_cnt], |
|
2465 |
false, // is not LVTT |
|
34666 | 2466 |
CHECK_NULL); |
1 | 2467 |
total_lvt_length += localvariable_table_length[lvt_cnt]; |
2468 |
lvt_cnt++; |
|
2469 |
} else if (LoadLocalVariableTypeTables && |
|
2470 |
_major_version >= JAVA_1_5_VERSION && |
|
34666 | 2471 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_type_table()) { |
1 | 2472 |
if (!lvt_allocated) { |
2473 |
localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
2474 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
2475 |
localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
34666 | 2476 |
THREAD, const u2*, INITIAL_MAX_LVT_NUMBER); |
1 | 2477 |
localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
2478 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
2479 |
localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
34666 | 2480 |
THREAD, const u2*, INITIAL_MAX_LVT_NUMBER); |
1 | 2481 |
lvt_allocated = true; |
2482 |
} |
|
2483 |
// Parse local variable type table |
|
2484 |
if (lvtt_cnt == max_lvtt_cnt) { |
|
2485 |
max_lvtt_cnt <<= 1; |
|
20668 | 2486 |
localvariable_type_table_length = REALLOC_RESOURCE_ARRAY(u2, localvariable_type_table_length, lvtt_cnt, max_lvtt_cnt); |
34666 | 2487 |
localvariable_type_table_start = REALLOC_RESOURCE_ARRAY(const u2*, localvariable_type_table_start, lvtt_cnt, max_lvtt_cnt); |
1 | 2488 |
} |
2489 |
localvariable_type_table_start[lvtt_cnt] = |
|
34666 | 2490 |
parse_localvariable_table(cfs, |
2491 |
code_length, |
|
1 | 2492 |
max_locals, |
2493 |
code_attribute_length, |
|
2494 |
&localvariable_type_table_length[lvtt_cnt], |
|
2495 |
true, // is LVTT |
|
34666 | 2496 |
CHECK_NULL); |
1 | 2497 |
lvtt_cnt++; |
16445
cb44d5b3ad89
8009595: The UseSplitVerifier option needs to be deprecated.
hseigel
parents:
15935
diff
changeset
|
2498 |
} else if (_major_version >= Verifier::STACKMAP_ATTRIBUTE_MAJOR_VERSION && |
34666 | 2499 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_stack_map_table()) { |
1 | 2500 |
// Stack map is only needed by the new verifier in JDK1.5. |
2501 |
if (parsed_stackmap_attribute) { |
|
34666 | 2502 |
classfile_parse_error("Multiple StackMapTable attributes in class file %s", CHECK_NULL); |
1 | 2503 |
} |
34666 | 2504 |
stackmap_data = parse_stackmap_table(cfs, code_attribute_length, _need_verify, CHECK_NULL); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2505 |
stackmap_data_length = code_attribute_length; |
1 | 2506 |
parsed_stackmap_attribute = true; |
2507 |
} else { |
|
2508 |
// Skip unknown attributes |
|
34666 | 2509 |
cfs->skip_u1(code_attribute_length, CHECK_NULL); |
1 | 2510 |
} |
2511 |
} |
|
2512 |
// check method attribute length |
|
2513 |
if (_need_verify) { |
|
2514 |
guarantee_property(method_attribute_length == calculated_attribute_length, |
|
34666 | 2515 |
"Code segment has wrong length in class file %s", |
2516 |
CHECK_NULL); |
|
1 | 2517 |
} |
2518 |
} else if (method_attribute_name == vmSymbols::tag_exceptions()) { |
|
2519 |
// Parse Exceptions attribute |
|
2520 |
if (parsed_checked_exceptions_attribute) { |
|
34666 | 2521 |
classfile_parse_error("Multiple Exceptions attributes in class file %s", |
2522 |
CHECK_NULL); |
|
1 | 2523 |
} |
2524 |
parsed_checked_exceptions_attribute = true; |
|
2525 |
checked_exceptions_start = |
|
34666 | 2526 |
parse_checked_exceptions(cfs, |
2527 |
&checked_exceptions_length, |
|
1 | 2528 |
method_attribute_length, |
34666 | 2529 |
CHECK_NULL); |
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2530 |
} else if (method_attribute_name == vmSymbols::tag_method_parameters()) { |
15464
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2531 |
// reject multiple method parameters |
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2532 |
if (method_parameters_seen) { |
34666 | 2533 |
classfile_parse_error("Multiple MethodParameters attributes in class file %s", |
2534 |
CHECK_NULL); |
|
15464
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2535 |
} |
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2536 |
method_parameters_seen = true; |
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2537 |
method_parameters_length = cfs->get_u1_fast(); |
27612
7201412afbd0
8058313: Mismatch of method descriptor and MethodParameters.parameters_count should cause MalformedParameterException
emc
parents:
27402
diff
changeset
|
2538 |
const u2 real_length = (method_parameters_length * 4u) + 1u; |
7201412afbd0
8058313: Mismatch of method descriptor and MethodParameters.parameters_count should cause MalformedParameterException
emc
parents:
27402
diff
changeset
|
2539 |
if (method_attribute_length != real_length) { |
15464
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2540 |
classfile_parse_error( |
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2541 |
"Invalid MethodParameters method attribute length %u in class file", |
34666 | 2542 |
method_attribute_length, CHECK_NULL); |
15464
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2543 |
} |
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2544 |
method_parameters_data = cfs->get_u1_buffer(); |
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2545 |
cfs->skip_u2_fast(method_parameters_length); |
17080
9151a26f5888
8007154: Remove support for u4 MethodParameter flags fields
emc
parents:
17024
diff
changeset
|
2546 |
cfs->skip_u2_fast(method_parameters_length); |
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2547 |
// ignore this attribute if it cannot be reflected |
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2548 |
if (!SystemDictionary::Parameter_klass_loaded()) |
27612
7201412afbd0
8058313: Mismatch of method descriptor and MethodParameters.parameters_count should cause MalformedParameterException
emc
parents:
27402
diff
changeset
|
2549 |
method_parameters_length = -1; |
1 | 2550 |
} else if (method_attribute_name == vmSymbols::tag_synthetic()) { |
2551 |
if (method_attribute_length != 0) { |
|
2552 |
classfile_parse_error( |
|
2553 |
"Invalid Synthetic method attribute length %u in class file %s", |
|
34666 | 2554 |
method_attribute_length, CHECK_NULL); |
1 | 2555 |
} |
2556 |
// Should we check that there hasn't already been a synthetic attribute? |
|
2557 |
access_flags.set_is_synthetic(); |
|
2558 |
} else if (method_attribute_name == vmSymbols::tag_deprecated()) { // 4276120 |
|
2559 |
if (method_attribute_length != 0) { |
|
2560 |
classfile_parse_error( |
|
2561 |
"Invalid Deprecated method attribute length %u in class file %s", |
|
34666 | 2562 |
method_attribute_length, CHECK_NULL); |
1 | 2563 |
} |
2564 |
} else if (_major_version >= JAVA_1_5_VERSION) { |
|
2565 |
if (method_attribute_name == vmSymbols::tag_signature()) { |
|
2566 |
if (method_attribute_length != 2) { |
|
2567 |
classfile_parse_error( |
|
2568 |
"Invalid Signature attribute length %u in class file %s", |
|
34666 | 2569 |
method_attribute_length, CHECK_NULL); |
1 | 2570 |
} |
34666 | 2571 |
generic_signature_index = parse_generic_signature_attribute(cfs, CHECK_NULL); |
1 | 2572 |
} else if (method_attribute_name == vmSymbols::tag_runtime_visible_annotations()) { |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2573 |
if (runtime_visible_annotations != NULL) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2574 |
classfile_parse_error( |
34666 | 2575 |
"Multiple RuntimeVisibleAnnotations attributes for method in class file %s", |
2576 |
CHECK_NULL); |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2577 |
} |
1 | 2578 |
runtime_visible_annotations_length = method_attribute_length; |
2579 |
runtime_visible_annotations = cfs->get_u1_buffer(); |
|
2580 |
assert(runtime_visible_annotations != NULL, "null visible annotations"); |
|
34666 | 2581 |
parse_annotations(cp, |
2582 |
runtime_visible_annotations, |
|
2583 |
runtime_visible_annotations_length, |
|
2584 |
&parsed_annotations, |
|
2585 |
_loader_data, |
|
2586 |
CHECK_NULL); |
|
2587 |
cfs->skip_u1(runtime_visible_annotations_length, CHECK_NULL); |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2588 |
} else if (method_attribute_name == vmSymbols::tag_runtime_invisible_annotations()) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2589 |
if (runtime_invisible_annotations_exists) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2590 |
classfile_parse_error( |
34666 | 2591 |
"Multiple RuntimeInvisibleAnnotations attributes for method in class file %s", |
2592 |
CHECK_NULL); |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2593 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2594 |
runtime_invisible_annotations_exists = true; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2595 |
if (PreserveAllAnnotations) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2596 |
runtime_invisible_annotations_length = method_attribute_length; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2597 |
runtime_invisible_annotations = cfs->get_u1_buffer(); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2598 |
assert(runtime_invisible_annotations != NULL, "null invisible annotations"); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2599 |
} |
34666 | 2600 |
cfs->skip_u1(method_attribute_length, CHECK_NULL); |
1 | 2601 |
} else if (method_attribute_name == vmSymbols::tag_runtime_visible_parameter_annotations()) { |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2602 |
if (runtime_visible_parameter_annotations != NULL) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2603 |
classfile_parse_error( |
34666 | 2604 |
"Multiple RuntimeVisibleParameterAnnotations attributes for method in class file %s", |
2605 |
CHECK_NULL); |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2606 |
} |
1 | 2607 |
runtime_visible_parameter_annotations_length = method_attribute_length; |
2608 |
runtime_visible_parameter_annotations = cfs->get_u1_buffer(); |
|
2609 |
assert(runtime_visible_parameter_annotations != NULL, "null visible parameter annotations"); |
|
34666 | 2610 |
cfs->skip_u1(runtime_visible_parameter_annotations_length, CHECK_NULL); |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2611 |
} else if (method_attribute_name == vmSymbols::tag_runtime_invisible_parameter_annotations()) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2612 |
if (runtime_invisible_parameter_annotations_exists) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2613 |
classfile_parse_error( |
34666 | 2614 |
"Multiple RuntimeInvisibleParameterAnnotations attributes for method in class file %s", |
2615 |
CHECK_NULL); |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2616 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2617 |
runtime_invisible_parameter_annotations_exists = true; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2618 |
if (PreserveAllAnnotations) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2619 |
runtime_invisible_parameter_annotations_length = method_attribute_length; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2620 |
runtime_invisible_parameter_annotations = cfs->get_u1_buffer(); |
34666 | 2621 |
assert(runtime_invisible_parameter_annotations != NULL, |
2622 |
"null invisible parameter annotations"); |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2623 |
} |
34666 | 2624 |
cfs->skip_u1(method_attribute_length, CHECK_NULL); |
1 | 2625 |
} else if (method_attribute_name == vmSymbols::tag_annotation_default()) { |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2626 |
if (annotation_default != NULL) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2627 |
classfile_parse_error( |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2628 |
"Multiple AnnotationDefault attributes for method in class file %s", |
34666 | 2629 |
CHECK_NULL); |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
2630 |
} |
1 | 2631 |
annotation_default_length = method_attribute_length; |
2632 |
annotation_default = cfs->get_u1_buffer(); |
|
2633 |
assert(annotation_default != NULL, "null annotation default"); |
|
34666 | 2634 |
cfs->skip_u1(annotation_default_length, CHECK_NULL); |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2635 |
} else if (method_attribute_name == vmSymbols::tag_runtime_visible_type_annotations()) { |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2636 |
if (runtime_visible_type_annotations != NULL) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2637 |
classfile_parse_error( |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2638 |
"Multiple RuntimeVisibleTypeAnnotations attributes for method in class file %s", |
34666 | 2639 |
CHECK_NULL); |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2640 |
} |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2641 |
runtime_visible_type_annotations_length = method_attribute_length; |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2642 |
runtime_visible_type_annotations = cfs->get_u1_buffer(); |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2643 |
assert(runtime_visible_type_annotations != NULL, "null visible type annotations"); |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2644 |
// No need for the VM to parse Type annotations |
34666 | 2645 |
cfs->skip_u1(runtime_visible_type_annotations_length, CHECK_NULL); |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2646 |
} else if (method_attribute_name == vmSymbols::tag_runtime_invisible_type_annotations()) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2647 |
if (runtime_invisible_type_annotations_exists) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2648 |
classfile_parse_error( |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2649 |
"Multiple RuntimeInvisibleTypeAnnotations attributes for method in class file %s", |
34666 | 2650 |
CHECK_NULL); |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2651 |
} else { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2652 |
runtime_invisible_type_annotations_exists = true; |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2653 |
} |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2654 |
if (PreserveAllAnnotations) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2655 |
runtime_invisible_type_annotations_length = method_attribute_length; |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2656 |
runtime_invisible_type_annotations = cfs->get_u1_buffer(); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2657 |
assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations"); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
2658 |
} |
34666 | 2659 |
cfs->skip_u1(method_attribute_length, CHECK_NULL); |
1 | 2660 |
} else { |
2661 |
// Skip unknown attributes |
|
34666 | 2662 |
cfs->skip_u1(method_attribute_length, CHECK_NULL); |
1 | 2663 |
} |
2664 |
} else { |
|
2665 |
// Skip unknown attributes |
|
34666 | 2666 |
cfs->skip_u1(method_attribute_length, CHECK_NULL); |
1 | 2667 |
} |
2668 |
} |
|
2669 |
||
2670 |
if (linenumber_table != NULL) { |
|
2671 |
linenumber_table->write_terminator(); |
|
2672 |
linenumber_table_length = linenumber_table->position(); |
|
2673 |
} |
|
2674 |
||
2675 |
// Make sure there's at least one Code attribute in non-native/non-abstract method |
|
2676 |
if (_need_verify) { |
|
34666 | 2677 |
guarantee_property(access_flags.is_native() || |
2678 |
access_flags.is_abstract() || |
|
2679 |
parsed_code_attribute, |
|
2680 |
"Absent Code attribute in method that is not native or abstract in class file %s", |
|
2681 |
CHECK_NULL); |
|
1 | 2682 |
} |
2683 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2684 |
// All sizing information for a Method* is finally available, now create it |
15601 | 2685 |
InlineTableSizes sizes( |
2686 |
total_lvt_length, |
|
2687 |
linenumber_table_length, |
|
2688 |
exception_table_length, |
|
2689 |
checked_exceptions_length, |
|
2690 |
method_parameters_length, |
|
2691 |
generic_signature_index, |
|
2692 |
runtime_visible_annotations_length + |
|
2693 |
runtime_invisible_annotations_length, |
|
2694 |
runtime_visible_parameter_annotations_length + |
|
2695 |
runtime_invisible_parameter_annotations_length, |
|
2696 |
runtime_visible_type_annotations_length + |
|
2697 |
runtime_invisible_type_annotations_length, |
|
2698 |
annotation_default_length, |
|
2699 |
0); |
|
2700 |
||
34666 | 2701 |
Method* const m = Method::allocate(_loader_data, |
2702 |
code_length, |
|
2703 |
access_flags, |
|
2704 |
&sizes, |
|
2705 |
ConstMethod::NORMAL, |
|
2706 |
CHECK_NULL); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2707 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2708 |
ClassLoadingService::add_class_method_size(m->size()*HeapWordSize); |
1 | 2709 |
|
2710 |
// Fill in information from fixed part (access_flags already set) |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2711 |
m->set_constants(_cp); |
1 | 2712 |
m->set_name_index(name_index); |
2713 |
m->set_signature_index(signature_index); |
|
2714 |
#ifdef CC_INTERP |
|
2715 |
// hmm is there a gc issue here?? |
|
34666 | 2716 |
ResultTypeFinder rtf(cp->symbol_at(signature_index)); |
1 | 2717 |
m->set_result_index(rtf.type()); |
2718 |
#endif |
|
2719 |
||
2720 |
if (args_size >= 0) { |
|
2721 |
m->set_size_of_parameters(args_size); |
|
2722 |
} else { |
|
2723 |
m->compute_size_of_parameters(THREAD); |
|
2724 |
} |
|
2725 |
#ifdef ASSERT |
|
2726 |
if (args_size >= 0) { |
|
2727 |
m->compute_size_of_parameters(THREAD); |
|
2728 |
assert(args_size == m->size_of_parameters(), ""); |
|
2729 |
} |
|
2730 |
#endif |
|
2731 |
||
2732 |
// Fill in code attribute information |
|
2733 |
m->set_max_stack(max_stack); |
|
2734 |
m->set_max_locals(max_locals); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2735 |
if (stackmap_data != NULL) { |
34666 | 2736 |
m->constMethod()->copy_stackmap_data(_loader_data, |
2737 |
(u1*)stackmap_data, |
|
2738 |
stackmap_data_length, |
|
2739 |
CHECK_NULL); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2740 |
} |
1 | 2741 |
|
2742 |
// Copy byte codes |
|
34666 | 2743 |
m->set_code((u1*)code_start); |
1 | 2744 |
|
2745 |
// Copy line number table |
|
2746 |
if (linenumber_table != NULL) { |
|
2747 |
memcpy(m->compressed_linenumber_table(), |
|
34666 | 2748 |
linenumber_table->buffer(), |
2749 |
linenumber_table_length); |
|
1 | 2750 |
} |
2751 |
||
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2752 |
// Copy exception table |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2753 |
if (exception_table_length > 0) { |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2754 |
int size = |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2755 |
exception_table_length * sizeof(ExceptionTableElement) / sizeof(u2); |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2756 |
copy_u2_with_conversion((u2*) m->exception_table_start(), |
34666 | 2757 |
exception_table_start, size); |
13282
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2758 |
} |
9872915dd78d
7178145: Change constMethodOop::_exception_table to optionally inlined u2 table.
jiangli
parents:
12772
diff
changeset
|
2759 |
|
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2760 |
// Copy method parameters |
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2761 |
if (method_parameters_length > 0) { |
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2762 |
MethodParametersElement* elem = m->constMethod()->method_parameters_start(); |
15464
1f2cca0aa501
8006949: Update hotspot for MethodParameters format change
emc
parents:
15244
diff
changeset
|
2763 |
for (int i = 0; i < method_parameters_length; i++) { |
34666 | 2764 |
elem[i].name_cp_index = Bytes::get_Java_u2((address)method_parameters_data); |
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2765 |
method_parameters_data += 2; |
34666 | 2766 |
elem[i].flags = Bytes::get_Java_u2((address)method_parameters_data); |
17080
9151a26f5888
8007154: Remove support for u4 MethodParameter flags fields
emc
parents:
17024
diff
changeset
|
2767 |
method_parameters_data += 2; |
15102
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2768 |
} |
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2769 |
} |
0a86564e5f61
8004728: Add hotspot support for parameter reflection
coleenp
parents:
15097
diff
changeset
|
2770 |
|
1 | 2771 |
// Copy checked exceptions |
2772 |
if (checked_exceptions_length > 0) { |
|
34666 | 2773 |
const int size = |
2774 |
checked_exceptions_length * sizeof(CheckedExceptionElement) / sizeof(u2); |
|
2775 |
copy_u2_with_conversion((u2*) m->checked_exceptions_start(), |
|
2776 |
checked_exceptions_start, |
|
2777 |
size); |
|
1 | 2778 |
} |
2779 |
||
15601 | 2780 |
// Copy class file LVT's/LVTT's into the HotSpot internal LVT. |
1 | 2781 |
if (total_lvt_length > 0) { |
2782 |
promoted_flags->set_has_localvariable_table(); |
|
34666 | 2783 |
copy_localvariable_table(m->constMethod(), |
2784 |
lvt_cnt, |
|
15601 | 2785 |
localvariable_table_length, |
2786 |
localvariable_table_start, |
|
2787 |
lvtt_cnt, |
|
2788 |
localvariable_type_table_length, |
|
34666 | 2789 |
localvariable_type_table_start, |
2790 |
CHECK_NULL); |
|
1 | 2791 |
} |
2792 |
||
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2793 |
if (parsed_annotations.has_any_annotations()) |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
2794 |
parsed_annotations.apply_to(m); |
15601 | 2795 |
|
2796 |
// Copy annotations |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2797 |
copy_method_annotations(m->constMethod(), |
15601 | 2798 |
runtime_visible_annotations, |
2799 |
runtime_visible_annotations_length, |
|
2800 |
runtime_invisible_annotations, |
|
2801 |
runtime_invisible_annotations_length, |
|
2802 |
runtime_visible_parameter_annotations, |
|
2803 |
runtime_visible_parameter_annotations_length, |
|
2804 |
runtime_invisible_parameter_annotations, |
|
2805 |
runtime_invisible_parameter_annotations_length, |
|
2806 |
runtime_visible_type_annotations, |
|
2807 |
runtime_visible_type_annotations_length, |
|
2808 |
runtime_invisible_type_annotations, |
|
2809 |
runtime_invisible_type_annotations_length, |
|
2810 |
annotation_default, |
|
2811 |
annotation_default_length, |
|
2812 |
CHECK_NULL); |
|
1 | 2813 |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2814 |
if (name == vmSymbols::finalize_method_name() && |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2815 |
signature == vmSymbols::void_method_signature()) { |
1 | 2816 |
if (m->is_empty_method()) { |
2817 |
_has_empty_finalizer = true; |
|
2818 |
} else { |
|
2819 |
_has_finalizer = true; |
|
2820 |
} |
|
2821 |
} |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2822 |
if (name == vmSymbols::object_initializer_name() && |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2823 |
signature == vmSymbols::void_method_signature() && |
1 | 2824 |
m->is_vanilla_constructor()) { |
2825 |
_has_vanilla_constructor = true; |
|
2826 |
} |
|
2827 |
||
15601 | 2828 |
NOT_PRODUCT(m->verify()); |
1 | 2829 |
return m; |
2830 |
} |
|
2831 |
||
2832 |
||
2833 |
// The promoted_flags parameter is used to pass relevant access_flags |
|
2834 |
// from the methods back up to the containing klass. These flag values |
|
2835 |
// are added to klass's access_flags. |
|
34666 | 2836 |
// Side-effects: populates the _methods field in the parser |
2837 |
void ClassFileParser::parse_methods(const ClassFileStream* const cfs, |
|
2838 |
bool is_interface, |
|
2839 |
AccessFlags* promoted_flags, |
|
2840 |
bool* has_final_method, |
|
2841 |
bool* declares_default_methods, |
|
2842 |
TRAPS) { |
|
2843 |
assert(cfs != NULL, "invariant"); |
|
2844 |
assert(promoted_flags != NULL, "invariant"); |
|
2845 |
assert(has_final_method != NULL, "invariant"); |
|
2846 |
assert(declares_default_methods != NULL, "invariant"); |
|
2847 |
||
2848 |
assert(NULL == _methods, "invariant"); |
|
2849 |
||
2850 |
cfs->guarantee_more(2, CHECK); // length |
|
2851 |
const u2 length = cfs->get_u2_fast(); |
|
1 | 2852 |
if (length == 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2853 |
_methods = Universe::the_empty_method_array(); |
1 | 2854 |
} else { |
34666 | 2855 |
_methods = MetadataFactory::new_array<Method*>(_loader_data, |
2856 |
length, |
|
2857 |
NULL, |
|
2858 |
CHECK); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2859 |
|
1 | 2860 |
HandleMark hm(THREAD); |
2861 |
for (int index = 0; index < length; index++) { |
|
34666 | 2862 |
Method* method = parse_method(cfs, |
2863 |
is_interface, |
|
2864 |
_cp, |
|
2865 |
promoted_flags, |
|
2866 |
CHECK); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2867 |
|
1 | 2868 |
if (method->is_final()) { |
2869 |
*has_final_method = true; |
|
2870 |
} |
|
27402
5c4675ddc00c
8043275: Fix interface initialization for default methods.
acorn
parents:
27023
diff
changeset
|
2871 |
// declares_default_methods: declares concrete instance methods, any access flags |
5c4675ddc00c
8043275: Fix interface initialization for default methods.
acorn
parents:
27023
diff
changeset
|
2872 |
// used for interface initialization, and default method inheritance analysis |
5c4675ddc00c
8043275: Fix interface initialization for default methods.
acorn
parents:
27023
diff
changeset
|
2873 |
if (is_interface && !(*declares_default_methods) |
5c4675ddc00c
8043275: Fix interface initialization for default methods.
acorn
parents:
27023
diff
changeset
|
2874 |
&& !method->is_abstract() && !method->is_static()) { |
5c4675ddc00c
8043275: Fix interface initialization for default methods.
acorn
parents:
27023
diff
changeset
|
2875 |
*declares_default_methods = true; |
14385 | 2876 |
} |
34666 | 2877 |
_methods->at_put(index, method); |
1 | 2878 |
} |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
2879 |
|
1 | 2880 |
if (_need_verify && length > 1) { |
2881 |
// Check duplicated methods |
|
2882 |
ResourceMark rm(THREAD); |
|
2883 |
NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
2884 |
THREAD, NameSigHash*, HASH_ROW_SIZE); |
|
2885 |
initialize_hashtable(names_and_sigs); |
|
2886 |
bool dup = false; |
|
2887 |
{ |
|
2888 |
debug_only(No_Safepoint_Verifier nsv;) |
|
2889 |
for (int i = 0; i < length; i++) { |
|
34666 | 2890 |
const Method* const m = _methods->at(i); |
1 | 2891 |
// If no duplicates, add name/signature in hashtable names_and_sigs. |
2892 |
if (!put_after_lookup(m->name(), m->signature(), names_and_sigs)) { |
|
2893 |
dup = true; |
|
2894 |
break; |
|
2895 |
} |
|
2896 |
} |
|
2897 |
} |
|
2898 |
if (dup) { |
|
2899 |
classfile_parse_error("Duplicate method name&signature in class file %s", |
|
34666 | 2900 |
CHECK); |
1 | 2901 |
} |
2902 |
} |
|
2903 |
} |
|
2904 |
} |
|
2905 |
||
34666 | 2906 |
static const intArray* sort_methods(Array<Method*>* methods) { |
2907 |
const int length = methods->length(); |
|
9172
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2908 |
// If JVMTI original method ordering or sharing is enabled we have to |
1 | 2909 |
// remember the original class file ordering. |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2910 |
// We temporarily use the vtable_index field in the Method* to store the |
1 | 2911 |
// class file index, so we can read in after calling qsort. |
9172
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2912 |
// Put the method ordering in the shared archive. |
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2913 |
if (JvmtiExport::can_maintain_original_method_order() || DumpSharedSpaces) { |
1 | 2914 |
for (int index = 0; index < length; index++) { |
34666 | 2915 |
Method* const m = methods->at(index); |
1 | 2916 |
assert(!m->valid_vtable_index(), "vtable index should not be set"); |
2917 |
m->set_vtable_index(index); |
|
2918 |
} |
|
2919 |
} |
|
2920 |
// Sort method array by ascending method name (for faster lookups & vtable construction) |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2921 |
// Note that the ordering is not alphabetical, see Symbol::fast_compare |
15601 | 2922 |
Method::sort_methods(methods); |
1 | 2923 |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2924 |
intArray* method_ordering = NULL; |
9172
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2925 |
// If JVMTI original method ordering or sharing is enabled construct int |
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2926 |
// array remembering the original ordering |
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2927 |
if (JvmtiExport::can_maintain_original_method_order() || DumpSharedSpaces) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2928 |
method_ordering = new intArray(length); |
1 | 2929 |
for (int index = 0; index < length; index++) { |
34666 | 2930 |
Method* const m = methods->at(index); |
2931 |
const int old_index = m->vtable_index(); |
|
1 | 2932 |
assert(old_index >= 0 && old_index < length, "invalid method index"); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2933 |
method_ordering->at_put(index, old_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
2934 |
m->set_vtable_index(Method::invalid_vtable_index); |
1 | 2935 |
} |
2936 |
} |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2937 |
return method_ordering; |
1 | 2938 |
} |
2939 |
||
25507 | 2940 |
// Parse generic_signature attribute for methods and fields |
34666 | 2941 |
u2 ClassFileParser::parse_generic_signature_attribute(const ClassFileStream* const cfs, |
2942 |
TRAPS) { |
|
2943 |
assert(cfs != NULL, "invariant"); |
|
2944 |
||
25507 | 2945 |
cfs->guarantee_more(2, CHECK_0); // generic_signature_index |
34666 | 2946 |
const u2 generic_signature_index = cfs->get_u2_fast(); |
25507 | 2947 |
check_property( |
2948 |
valid_symbol_at(generic_signature_index), |
|
2949 |
"Invalid Signature attribute at constant pool index %u in class file %s", |
|
2950 |
generic_signature_index, CHECK_0); |
|
2951 |
return generic_signature_index; |
|
2952 |
} |
|
1 | 2953 |
|
34666 | 2954 |
void ClassFileParser::parse_classfile_sourcefile_attribute(const ClassFileStream* const cfs, |
2955 |
TRAPS) { |
|
2956 |
||
2957 |
assert(cfs != NULL, "invariant"); |
|
2958 |
||
1 | 2959 |
cfs->guarantee_more(2, CHECK); // sourcefile_index |
34666 | 2960 |
const u2 sourcefile_index = cfs->get_u2_fast(); |
1 | 2961 |
check_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
2962 |
valid_symbol_at(sourcefile_index), |
1 | 2963 |
"Invalid SourceFile attribute at constant pool index %u in class file %s", |
2964 |
sourcefile_index, CHECK); |
|
19326
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
2965 |
set_class_sourcefile_index(sourcefile_index); |
1 | 2966 |
} |
2967 |
||
34666 | 2968 |
void ClassFileParser::parse_classfile_source_debug_extension_attribute(const ClassFileStream* const cfs, |
2969 |
int length, |
|
2970 |
TRAPS) { |
|
2971 |
assert(cfs != NULL, "invariant"); |
|
2972 |
||
2973 |
const u1* const sde_buffer = cfs->get_u1_buffer(); |
|
1 | 2974 |
assert(sde_buffer != NULL, "null sde buffer"); |
2975 |
||
2976 |
// Don't bother storing it if there is no way to retrieve it |
|
2977 |
if (JvmtiExport::can_get_source_debug_extension()) { |
|
13295 | 2978 |
assert((length+1) > length, "Overflow checking"); |
34666 | 2979 |
u1* const sde = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, u1, length+1); |
13295 | 2980 |
for (int i = 0; i < length; i++) { |
2981 |
sde[i] = sde_buffer[i]; |
|
2982 |
} |
|
2983 |
sde[length] = '\0'; |
|
34666 | 2984 |
set_class_sde_buffer((const char*)sde, length); |
1 | 2985 |
} |
2986 |
// Got utf8 string, set stream position forward |
|
2987 |
cfs->skip_u1(length, CHECK); |
|
2988 |
} |
|
2989 |
||
2990 |
||
2991 |
// Inner classes can be static, private or protected (classic VM does this) |
|
34666 | 2992 |
#define RECOGNIZED_INNER_CLASS_MODIFIERS ( JVM_RECOGNIZED_CLASS_MODIFIERS | \ |
2993 |
JVM_ACC_PRIVATE | \ |
|
2994 |
JVM_ACC_PROTECTED | \ |
|
2995 |
JVM_ACC_STATIC \ |
|
2996 |
) |
|
1 | 2997 |
|
2998 |
// Return number of classes in the inner classes attribute table |
|
34666 | 2999 |
u2 ClassFileParser::parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs, |
3000 |
const u1* const inner_classes_attribute_start, |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3001 |
bool parsed_enclosingmethod_attribute, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3002 |
u2 enclosing_method_class_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3003 |
u2 enclosing_method_method_index, |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3004 |
TRAPS) { |
34666 | 3005 |
const u1* const current_mark = cfs->current(); |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3006 |
u2 length = 0; |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3007 |
if (inner_classes_attribute_start != NULL) { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3008 |
cfs->set_current(inner_classes_attribute_start); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3009 |
cfs->guarantee_more(2, CHECK_0); // length |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3010 |
length = cfs->get_u2_fast(); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3011 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3012 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3013 |
// 4-tuples of shorts of inner classes data and 2 shorts of enclosing |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3014 |
// method data: |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3015 |
// [inner_class_info_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3016 |
// outer_class_info_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3017 |
// inner_name_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3018 |
// inner_class_access_flags, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3019 |
// ... |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3020 |
// enclosing_method_class_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3021 |
// enclosing_method_method_index] |
34666 | 3022 |
const int size = length * 4 + (parsed_enclosingmethod_attribute ? 2 : 0); |
3023 |
Array<u2>* const inner_classes = MetadataFactory::new_array<u2>(_loader_data, size, CHECK_0); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3024 |
_inner_classes = inner_classes; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3025 |
|
1 | 3026 |
int index = 0; |
34666 | 3027 |
const int cp_size = _cp->length(); |
1 | 3028 |
cfs->guarantee_more(8 * length, CHECK_0); // 4-tuples of u2 |
3029 |
for (int n = 0; n < length; n++) { |
|
3030 |
// Inner class index |
|
34666 | 3031 |
const u2 inner_class_info_index = cfs->get_u2_fast(); |
1 | 3032 |
check_property( |
31776
70dd826a47b5
8130183: InnerClasses: VM permits wrong inner_class_info_index value of zero
hseigel
parents:
31402
diff
changeset
|
3033 |
valid_klass_reference_at(inner_class_info_index), |
1 | 3034 |
"inner_class_info_index %u has bad constant type in class file %s", |
3035 |
inner_class_info_index, CHECK_0); |
|
3036 |
// Outer class index |
|
34666 | 3037 |
const u2 outer_class_info_index = cfs->get_u2_fast(); |
1 | 3038 |
check_property( |
3039 |
outer_class_info_index == 0 || |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3040 |
valid_klass_reference_at(outer_class_info_index), |
1 | 3041 |
"outer_class_info_index %u has bad constant type in class file %s", |
3042 |
outer_class_info_index, CHECK_0); |
|
3043 |
// Inner class name |
|
34666 | 3044 |
const u2 inner_name_index = cfs->get_u2_fast(); |
1 | 3045 |
check_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3046 |
inner_name_index == 0 || valid_symbol_at(inner_name_index), |
1 | 3047 |
"inner_name_index %u has bad constant type in class file %s", |
3048 |
inner_name_index, CHECK_0); |
|
3049 |
if (_need_verify) { |
|
3050 |
guarantee_property(inner_class_info_index != outer_class_info_index, |
|
3051 |
"Class is both outer and inner class in class file %s", CHECK_0); |
|
3052 |
} |
|
3053 |
// Access flags |
|
3054 |
jint flags = cfs->get_u2_fast() & RECOGNIZED_INNER_CLASS_MODIFIERS; |
|
3055 |
if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) { |
|
3056 |
// Set abstract bit for old class files for backward compatibility |
|
3057 |
flags |= JVM_ACC_ABSTRACT; |
|
3058 |
} |
|
3059 |
verify_legal_class_modifiers(flags, CHECK_0); |
|
34666 | 3060 |
AccessFlags inner_access_flags(flags); |
1 | 3061 |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3062 |
inner_classes->at_put(index++, inner_class_info_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3063 |
inner_classes->at_put(index++, outer_class_info_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3064 |
inner_classes->at_put(index++, inner_name_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3065 |
inner_classes->at_put(index++, inner_access_flags.as_short()); |
1 | 3066 |
} |
3067 |
||
3068 |
// 4347400: make sure there's no duplicate entry in the classes array |
|
3069 |
if (_need_verify && _major_version >= JAVA_1_5_VERSION) { |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3070 |
for(int i = 0; i < length * 4; i += 4) { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3071 |
for(int j = i + 4; j < length * 4; j += 4) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3072 |
guarantee_property((inner_classes->at(i) != inner_classes->at(j) || |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3073 |
inner_classes->at(i+1) != inner_classes->at(j+1) || |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3074 |
inner_classes->at(i+2) != inner_classes->at(j+2) || |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3075 |
inner_classes->at(i+3) != inner_classes->at(j+3)), |
1 | 3076 |
"Duplicate entry in InnerClasses in class file %s", |
3077 |
CHECK_0); |
|
3078 |
} |
|
3079 |
} |
|
3080 |
} |
|
3081 |
||
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3082 |
// Set EnclosingMethod class and method indexes. |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3083 |
if (parsed_enclosingmethod_attribute) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3084 |
inner_classes->at_put(index++, enclosing_method_class_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3085 |
inner_classes->at_put(index++, enclosing_method_method_index); |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3086 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3087 |
assert(index == size, "wrong size"); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3088 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3089 |
// Restore buffer's current position. |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3090 |
cfs->set_current(current_mark); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3091 |
|
1 | 3092 |
return length; |
3093 |
} |
|
3094 |
||
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3095 |
void ClassFileParser::parse_classfile_synthetic_attribute(TRAPS) { |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3096 |
set_class_synthetic_flag(true); |
1 | 3097 |
} |
3098 |
||
34666 | 3099 |
void ClassFileParser::parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS) { |
3100 |
assert(cfs != NULL, "invariant"); |
|
3101 |
||
3102 |
const u2 signature_index = cfs->get_u2(CHECK); |
|
1 | 3103 |
check_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3104 |
valid_symbol_at(signature_index), |
1 | 3105 |
"Invalid constant pool index %u in Signature attribute in class file %s", |
3106 |
signature_index, CHECK); |
|
19326
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
3107 |
set_class_generic_signature_index(signature_index); |
1 | 3108 |
} |
3109 |
||
34666 | 3110 |
void ClassFileParser::parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs, |
3111 |
ConstantPool* cp, |
|
3112 |
u4 attribute_byte_length, |
|
3113 |
TRAPS) { |
|
3114 |
assert(cfs != NULL, "invariant"); |
|
3115 |
assert(cp != NULL, "invariant"); |
|
3116 |
||
3117 |
const u1* const current_start = cfs->current(); |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3118 |
|
25506 | 3119 |
guarantee_property(attribute_byte_length >= sizeof(u2), |
3120 |
"Invalid BootstrapMethods attribute length %u in class file %s", |
|
3121 |
attribute_byte_length, |
|
3122 |
CHECK); |
|
3123 |
||
3124 |
cfs->guarantee_more(attribute_byte_length, CHECK); |
|
3125 |
||
34666 | 3126 |
const int attribute_array_length = cfs->get_u2_fast(); |
7436
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7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
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parents:
7397
diff
changeset
|
3127 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3128 |
guarantee_property(_max_bootstrap_specifier_index < attribute_array_length, |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3129 |
"Short length on BootstrapMethods in class file %s", |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3130 |
CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3131 |
|
23840 | 3132 |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3133 |
// The attribute contains a counted array of counted tuples of shorts, |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
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diff
changeset
|
3134 |
// represending bootstrap specifiers: |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3135 |
// length*{bootstrap_method_index, argument_count*{argument_index}} |
34666 | 3136 |
const int operand_count = (attribute_byte_length - sizeof(u2)) / sizeof(u2); |
7436
dbc43da3d512
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jrose
parents:
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diff
changeset
|
3137 |
// operand_count = number of shorts in attr, except for leading length |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
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diff
changeset
|
3138 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3139 |
// The attribute is copied into a short[] array. |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3140 |
// The array begins with a series of short[2] pairs, one for each tuple. |
34666 | 3141 |
const int index_size = (attribute_array_length * 2); |
3142 |
||
3143 |
Array<u2>* const operands = |
|
3144 |
MetadataFactory::new_array<u2>(_loader_data, index_size + operand_count, CHECK); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3145 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3146 |
// Eagerly assign operands so they will be deallocated with the constant |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3147 |
// pool if there is an error. |
34666 | 3148 |
cp->set_operands(operands); |
7436
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7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
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diff
changeset
|
3149 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3150 |
int operand_fill_index = index_size; |
34666 | 3151 |
const int cp_size = cp->length(); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
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diff
changeset
|
3152 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3153 |
for (int n = 0; n < attribute_array_length; n++) { |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3154 |
// Store a 32-bit offset into the header of the operand array. |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3155 |
ConstantPool::operand_offset_at_put(operands, n, operand_fill_index); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3156 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3157 |
// Read a bootstrap specifier. |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3158 |
cfs->guarantee_more(sizeof(u2) * 2, CHECK); // bsm, argc |
34666 | 3159 |
const u2 bootstrap_method_index = cfs->get_u2_fast(); |
3160 |
const u2 argument_count = cfs->get_u2_fast(); |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3161 |
check_property( |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3162 |
valid_cp_range(bootstrap_method_index, cp_size) && |
34666 | 3163 |
cp->tag_at(bootstrap_method_index).is_method_handle(), |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3164 |
"bootstrap_method_index %u has bad constant type in class file %s", |
7709 | 3165 |
bootstrap_method_index, |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3166 |
CHECK); |
27023 | 3167 |
|
3168 |
guarantee_property((operand_fill_index + 1 + argument_count) < operands->length(), |
|
3169 |
"Invalid BootstrapMethods num_bootstrap_methods or num_bootstrap_arguments value in class file %s", |
|
3170 |
CHECK); |
|
3171 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3172 |
operands->at_put(operand_fill_index++, bootstrap_method_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3173 |
operands->at_put(operand_fill_index++, argument_count); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3174 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3175 |
cfs->guarantee_more(sizeof(u2) * argument_count, CHECK); // argv[argc] |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3176 |
for (int j = 0; j < argument_count; j++) { |
34666 | 3177 |
const u2 argument_index = cfs->get_u2_fast(); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3178 |
check_property( |
7709 | 3179 |
valid_cp_range(argument_index, cp_size) && |
34666 | 3180 |
cp->tag_at(argument_index).is_loadable_constant(), |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3181 |
"argument_index %u has bad constant type in class file %s", |
7709 | 3182 |
argument_index, |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3183 |
CHECK); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3184 |
operands->at_put(operand_fill_index++, argument_index); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3185 |
} |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3186 |
} |
34666 | 3187 |
guarantee_property(current_start + attribute_byte_length == cfs->current(), |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3188 |
"Bad length on BootstrapMethods in class file %s", |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3189 |
CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3190 |
} |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3191 |
|
34666 | 3192 |
void ClassFileParser::parse_classfile_attributes(const ClassFileStream* const cfs, |
3193 |
ConstantPool* cp, |
|
3194 |
ClassFileParser::ClassAnnotationCollector* parsed_annotations, |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3195 |
TRAPS) { |
34666 | 3196 |
assert(cfs != NULL, "invariant"); |
3197 |
assert(cp != NULL, "invariant"); |
|
3198 |
assert(parsed_annotations != NULL, "invariant"); |
|
3199 |
||
1 | 3200 |
// Set inner classes attribute to default sentinel |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3201 |
_inner_classes = Universe::the_empty_short_array(); |
1 | 3202 |
cfs->guarantee_more(2, CHECK); // attributes_count |
3203 |
u2 attributes_count = cfs->get_u2_fast(); |
|
3204 |
bool parsed_sourcefile_attribute = false; |
|
3205 |
bool parsed_innerclasses_attribute = false; |
|
3206 |
bool parsed_enclosingmethod_attribute = false; |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3207 |
bool parsed_bootstrap_methods_attribute = false; |
34666 | 3208 |
const u1* runtime_visible_annotations = NULL; |
1 | 3209 |
int runtime_visible_annotations_length = 0; |
34666 | 3210 |
const u1* runtime_invisible_annotations = NULL; |
1 | 3211 |
int runtime_invisible_annotations_length = 0; |
34666 | 3212 |
const u1* runtime_visible_type_annotations = NULL; |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3213 |
int runtime_visible_type_annotations_length = 0; |
34666 | 3214 |
const u1* runtime_invisible_type_annotations = NULL; |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3215 |
int runtime_invisible_type_annotations_length = 0; |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3216 |
bool runtime_invisible_type_annotations_exists = false; |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3217 |
bool runtime_invisible_annotations_exists = false; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3218 |
bool parsed_source_debug_ext_annotations_exist = false; |
34666 | 3219 |
const u1* inner_classes_attribute_start = NULL; |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3220 |
u4 inner_classes_attribute_length = 0; |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3221 |
u2 enclosing_method_class_index = 0; |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3222 |
u2 enclosing_method_method_index = 0; |
1 | 3223 |
// Iterate over attributes |
3224 |
while (attributes_count--) { |
|
3225 |
cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length |
|
34666 | 3226 |
const u2 attribute_name_index = cfs->get_u2_fast(); |
3227 |
const u4 attribute_length = cfs->get_u4_fast(); |
|
1 | 3228 |
check_property( |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3229 |
valid_symbol_at(attribute_name_index), |
1 | 3230 |
"Attribute name has bad constant pool index %u in class file %s", |
3231 |
attribute_name_index, CHECK); |
|
34666 | 3232 |
const Symbol* const tag = cp->symbol_at(attribute_name_index); |
1 | 3233 |
if (tag == vmSymbols::tag_source_file()) { |
3234 |
// Check for SourceFile tag |
|
3235 |
if (_need_verify) { |
|
3236 |
guarantee_property(attribute_length == 2, "Wrong SourceFile attribute length in class file %s", CHECK); |
|
3237 |
} |
|
3238 |
if (parsed_sourcefile_attribute) { |
|
3239 |
classfile_parse_error("Multiple SourceFile attributes in class file %s", CHECK); |
|
3240 |
} else { |
|
3241 |
parsed_sourcefile_attribute = true; |
|
3242 |
} |
|
34666 | 3243 |
parse_classfile_sourcefile_attribute(cfs, CHECK); |
1 | 3244 |
} else if (tag == vmSymbols::tag_source_debug_extension()) { |
3245 |
// Check for SourceDebugExtension tag |
|
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3246 |
if (parsed_source_debug_ext_annotations_exist) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3247 |
classfile_parse_error( |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3248 |
"Multiple SourceDebugExtension attributes in class file %s", CHECK); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3249 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3250 |
parsed_source_debug_ext_annotations_exist = true; |
34666 | 3251 |
parse_classfile_source_debug_extension_attribute(cfs, (int)attribute_length, CHECK); |
1 | 3252 |
} else if (tag == vmSymbols::tag_inner_classes()) { |
3253 |
// Check for InnerClasses tag |
|
3254 |
if (parsed_innerclasses_attribute) { |
|
3255 |
classfile_parse_error("Multiple InnerClasses attributes in class file %s", CHECK); |
|
3256 |
} else { |
|
3257 |
parsed_innerclasses_attribute = true; |
|
3258 |
} |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3259 |
inner_classes_attribute_start = cfs->get_u1_buffer(); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3260 |
inner_classes_attribute_length = attribute_length; |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3261 |
cfs->skip_u1(inner_classes_attribute_length, CHECK); |
1 | 3262 |
} else if (tag == vmSymbols::tag_synthetic()) { |
3263 |
// Check for Synthetic tag |
|
3264 |
// Shouldn't we check that the synthetic flags wasn't already set? - not required in spec |
|
3265 |
if (attribute_length != 0) { |
|
3266 |
classfile_parse_error( |
|
3267 |
"Invalid Synthetic classfile attribute length %u in class file %s", |
|
3268 |
attribute_length, CHECK); |
|
3269 |
} |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3270 |
parse_classfile_synthetic_attribute(CHECK); |
1 | 3271 |
} else if (tag == vmSymbols::tag_deprecated()) { |
3272 |
// Check for Deprecatd tag - 4276120 |
|
3273 |
if (attribute_length != 0) { |
|
3274 |
classfile_parse_error( |
|
3275 |
"Invalid Deprecated classfile attribute length %u in class file %s", |
|
3276 |
attribute_length, CHECK); |
|
3277 |
} |
|
3278 |
} else if (_major_version >= JAVA_1_5_VERSION) { |
|
3279 |
if (tag == vmSymbols::tag_signature()) { |
|
3280 |
if (attribute_length != 2) { |
|
3281 |
classfile_parse_error( |
|
3282 |
"Wrong Signature attribute length %u in class file %s", |
|
3283 |
attribute_length, CHECK); |
|
3284 |
} |
|
34666 | 3285 |
parse_classfile_signature_attribute(cfs, CHECK); |
1 | 3286 |
} else if (tag == vmSymbols::tag_runtime_visible_annotations()) { |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3287 |
if (runtime_visible_annotations != NULL) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3288 |
classfile_parse_error( |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3289 |
"Multiple RuntimeVisibleAnnotations attributes in class file %s", CHECK); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3290 |
} |
1 | 3291 |
runtime_visible_annotations_length = attribute_length; |
3292 |
runtime_visible_annotations = cfs->get_u1_buffer(); |
|
3293 |
assert(runtime_visible_annotations != NULL, "null visible annotations"); |
|
34666 | 3294 |
parse_annotations(cp, |
3295 |
runtime_visible_annotations, |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3296 |
runtime_visible_annotations_length, |
34666 | 3297 |
parsed_annotations, |
3298 |
_loader_data, |
|
3299 |
CHECK); |
|
1 | 3300 |
cfs->skip_u1(runtime_visible_annotations_length, CHECK); |
24432
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3301 |
} else if (tag == vmSymbols::tag_runtime_invisible_annotations()) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3302 |
if (runtime_invisible_annotations_exists) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3303 |
classfile_parse_error( |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3304 |
"Multiple RuntimeInvisibleAnnotations attributes in class file %s", CHECK); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3305 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3306 |
runtime_invisible_annotations_exists = true; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3307 |
if (PreserveAllAnnotations) { |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3308 |
runtime_invisible_annotations_length = attribute_length; |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3309 |
runtime_invisible_annotations = cfs->get_u1_buffer(); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3310 |
assert(runtime_invisible_annotations != NULL, "null invisible annotations"); |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3311 |
} |
482afb00f089
8040292: Annotation attributes must not appear more than once
hseigel
parents:
24322
diff
changeset
|
3312 |
cfs->skip_u1(attribute_length, CHECK); |
1 | 3313 |
} else if (tag == vmSymbols::tag_enclosing_method()) { |
3314 |
if (parsed_enclosingmethod_attribute) { |
|
3315 |
classfile_parse_error("Multiple EnclosingMethod attributes in class file %s", CHECK); |
|
25054
8a12137a8422
8044738: Check attribute_length of EnclosingMethod attribute
hseigel
parents:
24828
diff
changeset
|
3316 |
} else { |
1 | 3317 |
parsed_enclosingmethod_attribute = true; |
3318 |
} |
|
25054
8a12137a8422
8044738: Check attribute_length of EnclosingMethod attribute
hseigel
parents:
24828
diff
changeset
|
3319 |
guarantee_property(attribute_length == 4, |
8a12137a8422
8044738: Check attribute_length of EnclosingMethod attribute
hseigel
parents:
24828
diff
changeset
|
3320 |
"Wrong EnclosingMethod attribute length %u in class file %s", |
8a12137a8422
8044738: Check attribute_length of EnclosingMethod attribute
hseigel
parents:
24828
diff
changeset
|
3321 |
attribute_length, CHECK); |
1 | 3322 |
cfs->guarantee_more(4, CHECK); // class_index, method_index |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3323 |
enclosing_method_class_index = cfs->get_u2_fast(); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3324 |
enclosing_method_method_index = cfs->get_u2_fast(); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3325 |
if (enclosing_method_class_index == 0) { |
1 | 3326 |
classfile_parse_error("Invalid class index in EnclosingMethod attribute in class file %s", CHECK); |
3327 |
} |
|
3328 |
// Validate the constant pool indices and types |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3329 |
check_property(valid_klass_reference_at(enclosing_method_class_index), |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3330 |
"Invalid or out-of-bounds class index in EnclosingMethod attribute in class file %s", CHECK); |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3331 |
if (enclosing_method_method_index != 0 && |
34666 | 3332 |
(!cp->is_within_bounds(enclosing_method_method_index) || |
3333 |
!cp->tag_at(enclosing_method_method_index).is_name_and_type())) { |
|
1 | 3334 |
classfile_parse_error("Invalid or out-of-bounds method index in EnclosingMethod attribute in class file %s", CHECK); |
3335 |
} |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3336 |
} else if (tag == vmSymbols::tag_bootstrap_methods() && |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3337 |
_major_version >= Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3338 |
if (parsed_bootstrap_methods_attribute) |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3339 |
classfile_parse_error("Multiple BootstrapMethods attributes in class file %s", CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3340 |
parsed_bootstrap_methods_attribute = true; |
34666 | 3341 |
parse_classfile_bootstrap_methods_attribute(cfs, cp, attribute_length, CHECK); |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3342 |
} else if (tag == vmSymbols::tag_runtime_visible_type_annotations()) { |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3343 |
if (runtime_visible_type_annotations != NULL) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3344 |
classfile_parse_error( |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3345 |
"Multiple RuntimeVisibleTypeAnnotations attributes in class file %s", CHECK); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3346 |
} |
15097
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3347 |
runtime_visible_type_annotations_length = attribute_length; |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3348 |
runtime_visible_type_annotations = cfs->get_u1_buffer(); |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3349 |
assert(runtime_visible_type_annotations != NULL, "null visible type annotations"); |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3350 |
// No need for the VM to parse Type annotations |
9db149412e0e
8004823: Add VM support for type annotation reflection
stefank
parents:
14590
diff
changeset
|
3351 |
cfs->skip_u1(runtime_visible_type_annotations_length, CHECK); |
19954
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3352 |
} else if (tag == vmSymbols::tag_runtime_invisible_type_annotations()) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3353 |
if (runtime_invisible_type_annotations_exists) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3354 |
classfile_parse_error( |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3355 |
"Multiple RuntimeInvisibleTypeAnnotations attributes in class file %s", CHECK); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3356 |
} else { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3357 |
runtime_invisible_type_annotations_exists = true; |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3358 |
} |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3359 |
if (PreserveAllAnnotations) { |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3360 |
runtime_invisible_type_annotations_length = attribute_length; |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3361 |
runtime_invisible_type_annotations = cfs->get_u1_buffer(); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3362 |
assert(runtime_invisible_type_annotations != NULL, "null invisible type annotations"); |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3363 |
} |
1642109d1a2c
8023167: JVM allows duplicate Runtime[In]VisibleTypeAnnotations attributes in ClassFile/field_info/method_info structures
hseigel
parents:
19681
diff
changeset
|
3364 |
cfs->skip_u1(attribute_length, CHECK); |
1 | 3365 |
} else { |
3366 |
// Unknown attribute |
|
3367 |
cfs->skip_u1(attribute_length, CHECK); |
|
3368 |
} |
|
3369 |
} else { |
|
3370 |
// Unknown attribute |
|
3371 |
cfs->skip_u1(attribute_length, CHECK); |
|
3372 |
} |
|
3373 |
} |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3374 |
_annotations = assemble_annotations(runtime_visible_annotations, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3375 |
runtime_visible_annotations_length, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3376 |
runtime_invisible_annotations, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3377 |
runtime_invisible_annotations_length, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3378 |
CHECK); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3379 |
_type_annotations = assemble_annotations(runtime_visible_type_annotations, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3380 |
runtime_visible_type_annotations_length, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3381 |
runtime_invisible_type_annotations, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3382 |
runtime_invisible_type_annotations_length, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3383 |
CHECK); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3384 |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3385 |
if (parsed_innerclasses_attribute || parsed_enclosingmethod_attribute) { |
34666 | 3386 |
const u2 num_of_classes = parse_classfile_inner_classes_attribute( |
3387 |
cfs, |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3388 |
inner_classes_attribute_start, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3389 |
parsed_innerclasses_attribute, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3390 |
enclosing_method_class_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3391 |
enclosing_method_method_index, |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3392 |
CHECK); |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3393 |
if (parsed_innerclasses_attribute &&_need_verify && _major_version >= JAVA_1_5_VERSION) { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3394 |
guarantee_property( |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3395 |
inner_classes_attribute_length == sizeof(num_of_classes) + 4 * sizeof(u2) * num_of_classes, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3396 |
"Wrong InnerClasses attribute length in class file %s", CHECK); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3397 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3398 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
3399 |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3400 |
if (_max_bootstrap_specifier_index >= 0) { |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3401 |
guarantee_property(parsed_bootstrap_methods_attribute, |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3402 |
"Missing BootstrapMethods attribute in class file %s", CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
3403 |
} |
1 | 3404 |
} |
3405 |
||
34666 | 3406 |
void ClassFileParser::apply_parsed_class_attributes(InstanceKlass* k) { |
3407 |
assert(k != NULL, "invariant"); |
|
3408 |
||
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3409 |
if (_synthetic_flag) |
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3410 |
k->set_is_synthetic(); |
19326
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
3411 |
if (_sourcefile_index != 0) { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
3412 |
k->set_source_file_name_index(_sourcefile_index); |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3413 |
} |
19326
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
3414 |
if (_generic_signature_index != 0) { |
14cb6cf26a96
8021948: Change InstanceKlass::_source_file_name and _generic_signature from Symbol* to constant pool indexes.
jiangli
parents:
18940
diff
changeset
|
3415 |
k->set_generic_signature_index(_generic_signature_index); |
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3416 |
} |
13295 | 3417 |
if (_sde_buffer != NULL) { |
3418 |
k->set_source_debug_extension(_sde_buffer, _sde_length); |
|
3419 |
} |
|
13291
9de3b1387cb8
6711908: JVM needs direct access to some annotations
jrose
parents:
12772
diff
changeset
|
3420 |
} |
1 | 3421 |
|
28027
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3422 |
// Create the Annotations object that will |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3423 |
// hold the annotations array for the Klass. |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3424 |
void ClassFileParser::create_combined_annotations(TRAPS) { |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3425 |
if (_annotations == NULL && |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3426 |
_type_annotations == NULL && |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3427 |
_fields_annotations == NULL && |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3428 |
_fields_type_annotations == NULL) { |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3429 |
// Don't create the Annotations object unnecessarily. |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3430 |
return; |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3431 |
} |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3432 |
|
34666 | 3433 |
Annotations* const annotations = Annotations::allocate(_loader_data, CHECK); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3434 |
annotations->set_class_annotations(_annotations); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3435 |
annotations->set_class_type_annotations(_type_annotations); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3436 |
annotations->set_fields_annotations(_fields_annotations); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3437 |
annotations->set_fields_type_annotations(_fields_type_annotations); |
28027
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3438 |
|
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3439 |
// This is the Annotations object that will be |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3440 |
// assigned to InstanceKlass being constructed. |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3441 |
_combined_annotations = annotations; |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3442 |
|
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3443 |
// The annotations arrays below has been transfered the |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3444 |
// _combined_annotations so these fields can now be cleared. |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3445 |
_annotations = NULL; |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3446 |
_type_annotations = NULL; |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3447 |
_fields_annotations = NULL; |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3448 |
_fields_type_annotations = NULL; |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3449 |
} |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3450 |
|
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3451 |
// Transfer ownership of metadata allocated to the InstanceKlass. |
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3452 |
void ClassFileParser::apply_parsed_class_metadata( |
34666 | 3453 |
InstanceKlass* this_klass, |
28027
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3454 |
int java_fields_count, TRAPS) { |
34666 | 3455 |
assert(this_klass != NULL, "invariant"); |
3456 |
||
3457 |
_cp->set_pool_holder(this_klass); |
|
15935
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coleenp
parents:
15932
diff
changeset
|
3458 |
this_klass->set_constants(_cp); |
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3459 |
this_klass->set_fields(_fields, java_fields_count); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3460 |
this_klass->set_methods(_methods); |
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3461 |
this_klass->set_inner_classes(_inner_classes); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3462 |
this_klass->set_local_interfaces(_local_interfaces); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3463 |
this_klass->set_transitive_interfaces(_transitive_interfaces); |
28027
c63d0bb0101c
8065634: Crash in InstanceKlass::clean_method_data when _method is NULL
stefank
parents:
27685
diff
changeset
|
3464 |
this_klass->set_annotations(_combined_annotations); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3465 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
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parents:
15932
diff
changeset
|
3466 |
// Clear out these fields so they don't get deallocated by the destructor |
50da9e5eb858
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coleenp
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15932
diff
changeset
|
3467 |
clear_class_metadata(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3468 |
} |
50da9e5eb858
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diff
changeset
|
3469 |
|
34666 | 3470 |
AnnotationArray* ClassFileParser::assemble_annotations(const u1* const runtime_visible_annotations, |
13952
e3cf184080bc
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
13738
diff
changeset
|
3471 |
int runtime_visible_annotations_length, |
34666 | 3472 |
const u1* const runtime_invisible_annotations, |
3473 |
int runtime_invisible_annotations_length, |
|
3474 |
TRAPS) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
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13391
diff
changeset
|
3475 |
AnnotationArray* annotations = NULL; |
1 | 3476 |
if (runtime_visible_annotations != NULL || |
3477 |
runtime_invisible_annotations != NULL) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3478 |
annotations = MetadataFactory::new_array<u1>(_loader_data, |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3479 |
runtime_visible_annotations_length + |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3480 |
runtime_invisible_annotations_length, |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3481 |
CHECK_(annotations)); |
1 | 3482 |
if (runtime_visible_annotations != NULL) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3483 |
for (int i = 0; i < runtime_visible_annotations_length; i++) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3484 |
annotations->at_put(i, runtime_visible_annotations[i]); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3485 |
} |
1 | 3486 |
} |
3487 |
if (runtime_invisible_annotations != NULL) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3488 |
for (int i = 0; i < runtime_invisible_annotations_length; i++) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3489 |
int append = runtime_visible_annotations_length+i; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3490 |
annotations->at_put(append, runtime_invisible_annotations[i]); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
3491 |
} |
1 | 3492 |
} |
3493 |
} |
|
3494 |
return annotations; |
|
3495 |
} |
|
3496 |
||
34666 | 3497 |
const InstanceKlass* ClassFileParser::parse_super_class(ConstantPool* const cp, |
3498 |
const int super_class_index, |
|
3499 |
const bool need_verify, |
|
3500 |
TRAPS) { |
|
3501 |
assert(cp != NULL, "invariant"); |
|
3502 |
const InstanceKlass* super_klass = NULL; |
|
3503 |
||
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3504 |
if (super_class_index == 0) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3505 |
check_property(_class_name == vmSymbols::java_lang_Object(), |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3506 |
"Invalid superclass index %u in class file %s", |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3507 |
super_class_index, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3508 |
CHECK_NULL); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3509 |
} else { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3510 |
check_property(valid_klass_reference_at(super_class_index), |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3511 |
"Invalid superclass index %u in class file %s", |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3512 |
super_class_index, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3513 |
CHECK_NULL); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3514 |
// The class name should be legal because it is checked when parsing constant pool. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3515 |
// However, make sure it is not an array type. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3516 |
bool is_array = false; |
34666 | 3517 |
if (cp->tag_at(super_class_index).is_klass()) { |
3518 |
super_klass = InstanceKlass::cast(cp->resolved_klass_at(super_class_index)); |
|
3519 |
if (need_verify) |
|
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33602
diff
changeset
|
3520 |
is_array = super_klass->is_array_klass(); |
34666 | 3521 |
} else if (need_verify) { |
3522 |
is_array = (cp->klass_name_at(super_class_index)->byte_at(0) == JVM_SIGNATURE_ARRAY); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3523 |
} |
34666 | 3524 |
if (need_verify) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3525 |
guarantee_property(!is_array, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3526 |
"Bad superclass name in class file %s", CHECK_NULL); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3527 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3528 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3529 |
return super_klass; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3530 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3531 |
|
34666 | 3532 |
static unsigned int compute_oop_map_count(const InstanceKlass* super, |
3533 |
unsigned int nonstatic_oop_map_count, |
|
3534 |
int first_nonstatic_oop_offset) { |
|
3535 |
||
3536 |
unsigned int map_count = |
|
3537 |
NULL == super ? 0 : super->nonstatic_oop_map_count(); |
|
3538 |
if (nonstatic_oop_map_count > 0) { |
|
3539 |
// We have oops to add to map |
|
3540 |
if (map_count == 0) { |
|
3541 |
map_count = nonstatic_oop_map_count; |
|
3542 |
} |
|
3543 |
else { |
|
3544 |
// Check whether we should add a new map block or whether the last one can |
|
3545 |
// be extended |
|
3546 |
const OopMapBlock* const first_map = super->start_of_nonstatic_oop_maps(); |
|
3547 |
const OopMapBlock* const last_map = first_map + map_count - 1; |
|
3548 |
||
3549 |
const int next_offset = last_map->offset() + last_map->count() * heapOopSize; |
|
3550 |
if (next_offset == first_nonstatic_oop_offset) { |
|
3551 |
// There is no gap bettwen superklass's last oop field and first |
|
3552 |
// local oop field, merge maps. |
|
3553 |
nonstatic_oop_map_count -= 1; |
|
3554 |
} |
|
3555 |
else { |
|
3556 |
// Superklass didn't end with a oop field, add extra maps |
|
3557 |
assert(next_offset < first_nonstatic_oop_offset, "just checking"); |
|
3558 |
} |
|
3559 |
map_count += nonstatic_oop_map_count; |
|
3560 |
} |
|
3561 |
} |
|
3562 |
return map_count; |
|
3563 |
} |
|
3564 |
||
3565 |
#ifndef PRODUCT |
|
3566 |
static void print_field_layout(const Symbol* name, |
|
3567 |
Array<u2>* fields, |
|
3568 |
constantPoolHandle cp, |
|
3569 |
int instance_size, |
|
3570 |
int instance_fields_start, |
|
3571 |
int instance_fields_end, |
|
3572 |
int static_fields_end) { |
|
3573 |
||
3574 |
assert(name != NULL, "invariant"); |
|
3575 |
||
3576 |
tty->print("%s: field layout\n", name->as_klass_external_name()); |
|
3577 |
tty->print(" @%3d %s\n", instance_fields_start, "--- instance fields start ---"); |
|
3578 |
for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) { |
|
3579 |
if (!fs.access_flags().is_static()) { |
|
3580 |
tty->print(" @%3d \"%s\" %s\n", |
|
3581 |
fs.offset(), |
|
3582 |
fs.name()->as_klass_external_name(), |
|
3583 |
fs.signature()->as_klass_external_name()); |
|
3584 |
} |
|
3585 |
} |
|
3586 |
tty->print(" @%3d %s\n", instance_fields_end, "--- instance fields end ---"); |
|
3587 |
tty->print(" @%3d %s\n", instance_size * wordSize, "--- instance ends ---"); |
|
3588 |
tty->print(" @%3d %s\n", InstanceMirrorKlass::offset_of_static_fields(), "--- static fields start ---"); |
|
3589 |
for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) { |
|
3590 |
if (fs.access_flags().is_static()) { |
|
3591 |
tty->print(" @%3d \"%s\" %s\n", |
|
3592 |
fs.offset(), |
|
3593 |
fs.name()->as_klass_external_name(), |
|
3594 |
fs.signature()->as_klass_external_name()); |
|
3595 |
} |
|
3596 |
} |
|
3597 |
tty->print(" @%3d %s\n", static_fields_end, "--- static fields end ---"); |
|
3598 |
tty->print("\n"); |
|
3599 |
} |
|
3600 |
#endif |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3601 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3602 |
// Values needed for oopmap and InstanceKlass creation |
34666 | 3603 |
class ClassFileParser::FieldLayoutInfo : public ResourceObj { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3604 |
public: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3605 |
int* nonstatic_oop_offsets; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3606 |
unsigned int* nonstatic_oop_counts; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3607 |
unsigned int nonstatic_oop_map_count; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3608 |
unsigned int total_oop_map_count; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3609 |
int instance_size; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3610 |
int nonstatic_field_size; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3611 |
int static_field_size; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3612 |
bool has_nonstatic_fields; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3613 |
}; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3614 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3615 |
// Layout fields and fill in FieldLayoutInfo. Could use more refactoring! |
34666 | 3616 |
void ClassFileParser::layout_fields(ConstantPool* cp, |
3617 |
const FieldAllocationCount* fac, |
|
3618 |
const ClassAnnotationCollector* parsed_annotations, |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3619 |
FieldLayoutInfo* info, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3620 |
TRAPS) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3621 |
|
34666 | 3622 |
assert(cp != NULL, "invariant"); |
3623 |
||
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3624 |
// Field size and offset computation |
34666 | 3625 |
int nonstatic_field_size = _super_klass == NULL ? 0 : |
3626 |
_super_klass->nonstatic_field_size(); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3627 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3628 |
// Count the contended fields by type. |
17612 | 3629 |
// |
3630 |
// We ignore static fields, because @Contended is not supported for them. |
|
3631 |
// The layout code below will also ignore the static fields. |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3632 |
int nonstatic_contended_count = 0; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3633 |
FieldAllocationCount fac_contended; |
34666 | 3634 |
for (AllFieldStream fs(_fields, cp); !fs.done(); fs.next()) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3635 |
FieldAllocationType atype = (FieldAllocationType) fs.allocation_type(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3636 |
if (fs.is_contended()) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3637 |
fac_contended.count[atype]++; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3638 |
if (!fs.access_flags().is_static()) { |
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changeset
|
3639 |
nonstatic_contended_count++; |
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diff
changeset
|
3640 |
} |
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diff
changeset
|
3641 |
} |
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diff
changeset
|
3642 |
} |
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diff
changeset
|
3643 |
|
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diff
changeset
|
3644 |
|
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diff
changeset
|
3645 |
// Calculate the starting byte offsets |
34666 | 3646 |
int next_static_oop_offset = InstanceMirrorKlass::offset_of_static_fields(); |
3647 |
int next_static_double_offset = next_static_oop_offset + |
|
3648 |
((fac->count[STATIC_OOP]) * heapOopSize); |
|
15935
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changeset
|
3649 |
if ( fac->count[STATIC_DOUBLE] && |
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changeset
|
3650 |
(Universe::field_type_should_be_aligned(T_DOUBLE) || |
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diff
changeset
|
3651 |
Universe::field_type_should_be_aligned(T_LONG)) ) { |
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coleenp
parents:
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diff
changeset
|
3652 |
next_static_double_offset = align_size_up(next_static_double_offset, BytesPerLong); |
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parents:
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diff
changeset
|
3653 |
} |
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diff
changeset
|
3654 |
|
34666 | 3655 |
int next_static_word_offset = next_static_double_offset + |
3656 |
((fac->count[STATIC_DOUBLE]) * BytesPerLong); |
|
3657 |
int next_static_short_offset = next_static_word_offset + |
|
3658 |
((fac->count[STATIC_WORD]) * BytesPerInt); |
|
3659 |
int next_static_byte_offset = next_static_short_offset + |
|
3660 |
((fac->count[STATIC_SHORT]) * BytesPerShort); |
|
15935
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parents:
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diff
changeset
|
3661 |
|
17612 | 3662 |
int nonstatic_fields_start = instanceOopDesc::base_offset_in_bytes() + |
3663 |
nonstatic_field_size * heapOopSize; |
|
3664 |
||
34666 | 3665 |
int next_nonstatic_field_offset = nonstatic_fields_start; |
3666 |
||
3667 |
const bool is_contended_class = parsed_annotations->is_contended(); |
|
17831
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changeset
|
3668 |
|
17612 | 3669 |
// Class is contended, pad before all the fields |
17831
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shade
parents:
17826
diff
changeset
|
3670 |
if (is_contended_class) { |
17612 | 3671 |
next_nonstatic_field_offset += ContendedPaddingWidth; |
15935
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diff
changeset
|
3672 |
} |
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diff
changeset
|
3673 |
|
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3674 |
// Compute the non-contended fields count. |
d8112d90739f
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shade
parents:
17826
diff
changeset
|
3675 |
// The packing code below relies on these counts to determine if some field |
d8112d90739f
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shade
parents:
17826
diff
changeset
|
3676 |
// can be squeezed into the alignment gap. Contended fields are obviously |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3677 |
// exempt from that. |
15935
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coleenp
parents:
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diff
changeset
|
3678 |
unsigned int nonstatic_double_count = fac->count[NONSTATIC_DOUBLE] - fac_contended.count[NONSTATIC_DOUBLE]; |
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parents:
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diff
changeset
|
3679 |
unsigned int nonstatic_word_count = fac->count[NONSTATIC_WORD] - fac_contended.count[NONSTATIC_WORD]; |
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parents:
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diff
changeset
|
3680 |
unsigned int nonstatic_short_count = fac->count[NONSTATIC_SHORT] - fac_contended.count[NONSTATIC_SHORT]; |
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parents:
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diff
changeset
|
3681 |
unsigned int nonstatic_byte_count = fac->count[NONSTATIC_BYTE] - fac_contended.count[NONSTATIC_BYTE]; |
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coleenp
parents:
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diff
changeset
|
3682 |
unsigned int nonstatic_oop_count = fac->count[NONSTATIC_OOP] - fac_contended.count[NONSTATIC_OOP]; |
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coleenp
parents:
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diff
changeset
|
3683 |
|
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3684 |
// Total non-static fields count, including every contended field |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3685 |
unsigned int nonstatic_fields_count = fac->count[NONSTATIC_DOUBLE] + fac->count[NONSTATIC_WORD] + |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3686 |
fac->count[NONSTATIC_SHORT] + fac->count[NONSTATIC_BYTE] + |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3687 |
fac->count[NONSTATIC_OOP]; |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3688 |
|
34666 | 3689 |
const bool super_has_nonstatic_fields = |
3690 |
(_super_klass != NULL && _super_klass->has_nonstatic_fields()); |
|
3691 |
const bool has_nonstatic_fields = |
|
3692 |
super_has_nonstatic_fields || (nonstatic_fields_count != 0); |
|
15935
50da9e5eb858
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coleenp
parents:
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diff
changeset
|
3693 |
|
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3694 |
|
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3695 |
// Prepare list of oops for oop map generation. |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3696 |
// |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3697 |
// "offset" and "count" lists are describing the set of contiguous oop |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3698 |
// regions. offset[i] is the start of the i-th region, which then has |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3699 |
// count[i] oops following. Before we know how many regions are required, |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3700 |
// we pessimistically allocate the maps to fit all the oops into the |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3701 |
// distinct regions. |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3702 |
// |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3703 |
// TODO: We add +1 to always allocate non-zero resource arrays; we need |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3704 |
// to figure out if we still need to do this. |
15935
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coleenp
parents:
15932
diff
changeset
|
3705 |
unsigned int nonstatic_oop_map_count = 0; |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3706 |
unsigned int max_nonstatic_oop_maps = fac->count[NONSTATIC_OOP] + 1; |
15935
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3707 |
|
34666 | 3708 |
int* nonstatic_oop_offsets = NEW_RESOURCE_ARRAY_IN_THREAD( |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3709 |
THREAD, int, max_nonstatic_oop_maps); |
34666 | 3710 |
unsigned int* const nonstatic_oop_counts = NEW_RESOURCE_ARRAY_IN_THREAD( |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3711 |
THREAD, unsigned int, max_nonstatic_oop_maps); |
15935
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3712 |
|
34666 | 3713 |
int first_nonstatic_oop_offset = 0; // will be set for first oop field |
15935
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3714 |
|
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3715 |
bool compact_fields = CompactFields; |
34666 | 3716 |
int allocation_style = FieldsAllocationStyle; |
15935
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3717 |
if( allocation_style < 0 || allocation_style > 2 ) { // Out of range? |
50da9e5eb858
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coleenp
parents:
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diff
changeset
|
3718 |
assert(false, "0 <= FieldsAllocationStyle <= 2"); |
50da9e5eb858
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coleenp
parents:
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diff
changeset
|
3719 |
allocation_style = 1; // Optimistic |
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3720 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3721 |
|
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3722 |
// The next classes have predefined hard-coded fields offsets |
50da9e5eb858
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coleenp
parents:
15932
diff
changeset
|
3723 |
// (see in JavaClasses::compute_hard_coded_offsets()). |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3724 |
// Use default fields allocation order for them. |
34666 | 3725 |
if( (allocation_style != 0 || compact_fields ) && _loader_data->class_loader() == NULL && |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3726 |
(_class_name == vmSymbols::java_lang_AssertionStatusDirectives() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3727 |
_class_name == vmSymbols::java_lang_Class() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3728 |
_class_name == vmSymbols::java_lang_ClassLoader() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3729 |
_class_name == vmSymbols::java_lang_ref_Reference() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3730 |
_class_name == vmSymbols::java_lang_ref_SoftReference() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3731 |
_class_name == vmSymbols::java_lang_StackTraceElement() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3732 |
_class_name == vmSymbols::java_lang_String() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3733 |
_class_name == vmSymbols::java_lang_Throwable() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3734 |
_class_name == vmSymbols::java_lang_Boolean() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3735 |
_class_name == vmSymbols::java_lang_Character() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3736 |
_class_name == vmSymbols::java_lang_Float() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3737 |
_class_name == vmSymbols::java_lang_Double() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3738 |
_class_name == vmSymbols::java_lang_Byte() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3739 |
_class_name == vmSymbols::java_lang_Short() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3740 |
_class_name == vmSymbols::java_lang_Integer() || |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3741 |
_class_name == vmSymbols::java_lang_Long())) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3742 |
allocation_style = 0; // Allocate oops first |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3743 |
compact_fields = false; // Don't compact fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3744 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3745 |
|
34666 | 3746 |
int next_nonstatic_oop_offset = 0; |
3747 |
int next_nonstatic_double_offset = 0; |
|
3748 |
||
17612 | 3749 |
// Rearrange fields for a given allocation style |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3750 |
if( allocation_style == 0 ) { |
50da9e5eb858
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coleenp
parents:
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diff
changeset
|
3751 |
// Fields order: oops, longs/doubles, ints, shorts/chars, bytes, padded fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3752 |
next_nonstatic_oop_offset = next_nonstatic_field_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3753 |
next_nonstatic_double_offset = next_nonstatic_oop_offset + |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3754 |
(nonstatic_oop_count * heapOopSize); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3755 |
} else if( allocation_style == 1 ) { |
50da9e5eb858
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coleenp
parents:
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diff
changeset
|
3756 |
// Fields order: longs/doubles, ints, shorts/chars, bytes, oops, padded fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3757 |
next_nonstatic_double_offset = next_nonstatic_field_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3758 |
} else if( allocation_style == 2 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3759 |
// Fields allocation: oops fields in super and sub classes are together. |
34666 | 3760 |
if( nonstatic_field_size > 0 && _super_klass != NULL && |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3761 |
_super_klass->nonstatic_oop_map_size() > 0 ) { |
34666 | 3762 |
const unsigned int map_count = _super_klass->nonstatic_oop_map_count(); |
3763 |
const OopMapBlock* const first_map = _super_klass->start_of_nonstatic_oop_maps(); |
|
3764 |
const OopMapBlock* const last_map = first_map + map_count - 1; |
|
3765 |
const int next_offset = last_map->offset() + (last_map->count() * heapOopSize); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3766 |
if (next_offset == next_nonstatic_field_offset) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3767 |
allocation_style = 0; // allocate oops first |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3768 |
next_nonstatic_oop_offset = next_nonstatic_field_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3769 |
next_nonstatic_double_offset = next_nonstatic_oop_offset + |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
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diff
changeset
|
3770 |
(nonstatic_oop_count * heapOopSize); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3771 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3772 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3773 |
if( allocation_style == 2 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3774 |
allocation_style = 1; // allocate oops last |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3775 |
next_nonstatic_double_offset = next_nonstatic_field_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3776 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3777 |
} else { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3778 |
ShouldNotReachHere(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3779 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3780 |
|
34666 | 3781 |
int nonstatic_oop_space_count = 0; |
3782 |
int nonstatic_word_space_count = 0; |
|
3783 |
int nonstatic_short_space_count = 0; |
|
3784 |
int nonstatic_byte_space_count = 0; |
|
3785 |
int nonstatic_oop_space_offset = 0; |
|
3786 |
int nonstatic_word_space_offset = 0; |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
33230
diff
changeset
|
3787 |
int nonstatic_short_space_offset = 0; |
34666 | 3788 |
int nonstatic_byte_space_offset = 0; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3789 |
|
17612 | 3790 |
// Try to squeeze some of the fields into the gaps due to |
3791 |
// long/double alignment. |
|
34666 | 3792 |
if (nonstatic_double_count > 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3793 |
int offset = next_nonstatic_double_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3794 |
next_nonstatic_double_offset = align_size_up(offset, BytesPerLong); |
34666 | 3795 |
if (compact_fields && offset != next_nonstatic_double_offset) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3796 |
// Allocate available fields into the gap before double field. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3797 |
int length = next_nonstatic_double_offset - offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3798 |
assert(length == BytesPerInt, ""); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3799 |
nonstatic_word_space_offset = offset; |
34666 | 3800 |
if (nonstatic_word_count > 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3801 |
nonstatic_word_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3802 |
nonstatic_word_space_count = 1; // Only one will fit |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3803 |
length -= BytesPerInt; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3804 |
offset += BytesPerInt; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3805 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3806 |
nonstatic_short_space_offset = offset; |
34666 | 3807 |
while (length >= BytesPerShort && nonstatic_short_count > 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3808 |
nonstatic_short_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3809 |
nonstatic_short_space_count += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3810 |
length -= BytesPerShort; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3811 |
offset += BytesPerShort; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3812 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3813 |
nonstatic_byte_space_offset = offset; |
34666 | 3814 |
while (length > 0 && nonstatic_byte_count > 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3815 |
nonstatic_byte_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3816 |
nonstatic_byte_space_count += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3817 |
length -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3818 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3819 |
// Allocate oop field in the gap if there are no other fields for that. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3820 |
nonstatic_oop_space_offset = offset; |
34666 | 3821 |
if (length >= heapOopSize && nonstatic_oop_count > 0 && |
3822 |
allocation_style != 0) { // when oop fields not first |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3823 |
nonstatic_oop_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3824 |
nonstatic_oop_space_count = 1; // Only one will fit |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3825 |
length -= heapOopSize; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3826 |
offset += heapOopSize; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3827 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3828 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3829 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3830 |
|
34666 | 3831 |
int next_nonstatic_word_offset = next_nonstatic_double_offset + |
3832 |
(nonstatic_double_count * BytesPerLong); |
|
3833 |
int next_nonstatic_short_offset = next_nonstatic_word_offset + |
|
3834 |
(nonstatic_word_count * BytesPerInt); |
|
3835 |
int next_nonstatic_byte_offset = next_nonstatic_short_offset + |
|
3836 |
(nonstatic_short_count * BytesPerShort); |
|
3837 |
int next_nonstatic_padded_offset = next_nonstatic_byte_offset + |
|
3838 |
nonstatic_byte_count; |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3839 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3840 |
// let oops jump before padding with this allocation style |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3841 |
if( allocation_style == 1 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3842 |
next_nonstatic_oop_offset = next_nonstatic_padded_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3843 |
if( nonstatic_oop_count > 0 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3844 |
next_nonstatic_oop_offset = align_size_up(next_nonstatic_oop_offset, heapOopSize); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3845 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3846 |
next_nonstatic_padded_offset = next_nonstatic_oop_offset + (nonstatic_oop_count * heapOopSize); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3847 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3848 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3849 |
// Iterate over fields again and compute correct offsets. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3850 |
// The field allocation type was temporarily stored in the offset slot. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3851 |
// oop fields are located before non-oop fields (static and non-static). |
34666 | 3852 |
for (AllFieldStream fs(_fields, cp); !fs.done(); fs.next()) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3853 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3854 |
// skip already laid out fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3855 |
if (fs.is_offset_set()) continue; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3856 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3857 |
// contended instance fields are handled below |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3858 |
if (fs.is_contended() && !fs.access_flags().is_static()) continue; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3859 |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
33230
diff
changeset
|
3860 |
int real_offset = 0; |
34666 | 3861 |
const FieldAllocationType atype = (const FieldAllocationType) fs.allocation_type(); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3862 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3863 |
// pack the rest of the fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3864 |
switch (atype) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3865 |
case STATIC_OOP: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3866 |
real_offset = next_static_oop_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3867 |
next_static_oop_offset += heapOopSize; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3868 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3869 |
case STATIC_BYTE: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3870 |
real_offset = next_static_byte_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3871 |
next_static_byte_offset += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3872 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3873 |
case STATIC_SHORT: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3874 |
real_offset = next_static_short_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3875 |
next_static_short_offset += BytesPerShort; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3876 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3877 |
case STATIC_WORD: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3878 |
real_offset = next_static_word_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3879 |
next_static_word_offset += BytesPerInt; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3880 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3881 |
case STATIC_DOUBLE: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3882 |
real_offset = next_static_double_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3883 |
next_static_double_offset += BytesPerLong; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3884 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3885 |
case NONSTATIC_OOP: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3886 |
if( nonstatic_oop_space_count > 0 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3887 |
real_offset = nonstatic_oop_space_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3888 |
nonstatic_oop_space_offset += heapOopSize; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3889 |
nonstatic_oop_space_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3890 |
} else { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3891 |
real_offset = next_nonstatic_oop_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3892 |
next_nonstatic_oop_offset += heapOopSize; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3893 |
} |
27616
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
3894 |
|
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
3895 |
// Record this oop in the oop maps |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3896 |
if( nonstatic_oop_map_count > 0 && |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3897 |
nonstatic_oop_offsets[nonstatic_oop_map_count - 1] == |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3898 |
real_offset - |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3899 |
int(nonstatic_oop_counts[nonstatic_oop_map_count - 1]) * |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3900 |
heapOopSize ) { |
27616
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
3901 |
// This oop is adjacent to the previous one, add to current oop map |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3902 |
assert(nonstatic_oop_map_count - 1 < max_nonstatic_oop_maps, "range check"); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3903 |
nonstatic_oop_counts[nonstatic_oop_map_count - 1] += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3904 |
} else { |
27616
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
3905 |
// This oop is not adjacent to the previous one, create new oop map |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3906 |
assert(nonstatic_oop_map_count < max_nonstatic_oop_maps, "range check"); |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3907 |
nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3908 |
nonstatic_oop_counts [nonstatic_oop_map_count] = 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3909 |
nonstatic_oop_map_count += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3910 |
if( first_nonstatic_oop_offset == 0 ) { // Undefined |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3911 |
first_nonstatic_oop_offset = real_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3912 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3913 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3914 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3915 |
case NONSTATIC_BYTE: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3916 |
if( nonstatic_byte_space_count > 0 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3917 |
real_offset = nonstatic_byte_space_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3918 |
nonstatic_byte_space_offset += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3919 |
nonstatic_byte_space_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3920 |
} else { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3921 |
real_offset = next_nonstatic_byte_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3922 |
next_nonstatic_byte_offset += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3923 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3924 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3925 |
case NONSTATIC_SHORT: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3926 |
if( nonstatic_short_space_count > 0 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3927 |
real_offset = nonstatic_short_space_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3928 |
nonstatic_short_space_offset += BytesPerShort; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3929 |
nonstatic_short_space_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3930 |
} else { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3931 |
real_offset = next_nonstatic_short_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3932 |
next_nonstatic_short_offset += BytesPerShort; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3933 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3934 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3935 |
case NONSTATIC_WORD: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3936 |
if( nonstatic_word_space_count > 0 ) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3937 |
real_offset = nonstatic_word_space_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3938 |
nonstatic_word_space_offset += BytesPerInt; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3939 |
nonstatic_word_space_count -= 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3940 |
} else { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3941 |
real_offset = next_nonstatic_word_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3942 |
next_nonstatic_word_offset += BytesPerInt; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3943 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3944 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3945 |
case NONSTATIC_DOUBLE: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3946 |
real_offset = next_nonstatic_double_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3947 |
next_nonstatic_double_offset += BytesPerLong; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3948 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3949 |
default: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3950 |
ShouldNotReachHere(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3951 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3952 |
fs.set_offset(real_offset); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3953 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3954 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3955 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3956 |
// Handle the contended cases. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3957 |
// |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3958 |
// Each contended field should not intersect the cache line with another contended field. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3959 |
// In the absence of alignment information, we end up with pessimistically separating |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3960 |
// the fields with full-width padding. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3961 |
// |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3962 |
// Additionally, this should not break alignment for the fields, so we round the alignment up |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3963 |
// for each field. |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3964 |
if (nonstatic_contended_count > 0) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3965 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3966 |
// if there is at least one contended field, we need to have pre-padding for them |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
3967 |
next_nonstatic_padded_offset += ContendedPaddingWidth; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3968 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3969 |
// collect all contended groups |
34666 | 3970 |
BitMap bm(cp->size()); |
3971 |
for (AllFieldStream fs(_fields, cp); !fs.done(); fs.next()) { |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3972 |
// skip already laid out fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3973 |
if (fs.is_offset_set()) continue; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3974 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3975 |
if (fs.is_contended()) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3976 |
bm.set_bit(fs.contended_group()); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3977 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3978 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3979 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3980 |
int current_group = -1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3981 |
while ((current_group = (int)bm.get_next_one_offset(current_group + 1)) != (int)bm.size()) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3982 |
|
34666 | 3983 |
for (AllFieldStream fs(_fields, cp); !fs.done(); fs.next()) { |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3984 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3985 |
// skip already laid out fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3986 |
if (fs.is_offset_set()) continue; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3987 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3988 |
// skip non-contended fields and fields from different group |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3989 |
if (!fs.is_contended() || (fs.contended_group() != current_group)) continue; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3990 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3991 |
// handle statics below |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3992 |
if (fs.access_flags().is_static()) continue; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3993 |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
33230
diff
changeset
|
3994 |
int real_offset = 0; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3995 |
FieldAllocationType atype = (FieldAllocationType) fs.allocation_type(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3996 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3997 |
switch (atype) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3998 |
case NONSTATIC_BYTE: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
3999 |
next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, 1); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4000 |
real_offset = next_nonstatic_padded_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4001 |
next_nonstatic_padded_offset += 1; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4002 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4003 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4004 |
case NONSTATIC_SHORT: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4005 |
next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerShort); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4006 |
real_offset = next_nonstatic_padded_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4007 |
next_nonstatic_padded_offset += BytesPerShort; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4008 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4009 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4010 |
case NONSTATIC_WORD: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4011 |
next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerInt); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4012 |
real_offset = next_nonstatic_padded_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4013 |
next_nonstatic_padded_offset += BytesPerInt; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4014 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4015 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4016 |
case NONSTATIC_DOUBLE: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4017 |
next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, BytesPerLong); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4018 |
real_offset = next_nonstatic_padded_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4019 |
next_nonstatic_padded_offset += BytesPerLong; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4020 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4021 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4022 |
case NONSTATIC_OOP: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4023 |
next_nonstatic_padded_offset = align_size_up(next_nonstatic_padded_offset, heapOopSize); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4024 |
real_offset = next_nonstatic_padded_offset; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4025 |
next_nonstatic_padded_offset += heapOopSize; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4026 |
|
27616
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4027 |
// Record this oop in the oop maps |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4028 |
if( nonstatic_oop_map_count > 0 && |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4029 |
nonstatic_oop_offsets[nonstatic_oop_map_count - 1] == |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4030 |
real_offset - |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4031 |
int(nonstatic_oop_counts[nonstatic_oop_map_count - 1]) * |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4032 |
heapOopSize ) { |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4033 |
// This oop is adjacent to the previous one, add to current oop map |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4034 |
assert(nonstatic_oop_map_count - 1 < max_nonstatic_oop_maps, "range check"); |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4035 |
nonstatic_oop_counts[nonstatic_oop_map_count - 1] += 1; |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4036 |
} else { |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4037 |
// This oop is not adjacent to the previous one, create new oop map |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4038 |
assert(nonstatic_oop_map_count < max_nonstatic_oop_maps, "range check"); |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4039 |
nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset; |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4040 |
nonstatic_oop_counts [nonstatic_oop_map_count] = 1; |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4041 |
nonstatic_oop_map_count += 1; |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4042 |
if( first_nonstatic_oop_offset == 0 ) { // Undefined |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4043 |
first_nonstatic_oop_offset = real_offset; |
6a63de6a8276
8015272: Make @Contended within the same group to use the same oop map
shade
parents:
27612
diff
changeset
|
4044 |
} |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4045 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4046 |
break; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4047 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4048 |
default: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4049 |
ShouldNotReachHere(); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4050 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4051 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4052 |
if (fs.contended_group() == 0) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4053 |
// Contended group defines the equivalence class over the fields: |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4054 |
// the fields within the same contended group are not inter-padded. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4055 |
// The only exception is default group, which does not incur the |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4056 |
// equivalence, and so requires intra-padding. |
17612 | 4057 |
next_nonstatic_padded_offset += ContendedPaddingWidth; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4058 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4059 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4060 |
fs.set_offset(real_offset); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4061 |
} // for |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4062 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4063 |
// Start laying out the next group. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4064 |
// Note that this will effectively pad the last group in the back; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4065 |
// this is expected to alleviate memory contention effects for |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4066 |
// subclass fields and/or adjacent object. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4067 |
// If this was the default group, the padding is already in place. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4068 |
if (current_group != 0) { |
17612 | 4069 |
next_nonstatic_padded_offset += ContendedPaddingWidth; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4070 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4071 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4072 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4073 |
// handle static fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4074 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4075 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4076 |
// Entire class is contended, pad in the back. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4077 |
// This helps to alleviate memory contention effects for subclass fields |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4078 |
// and/or adjacent object. |
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4079 |
if (is_contended_class) { |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4080 |
next_nonstatic_padded_offset += ContendedPaddingWidth; |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4081 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4082 |
|
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4083 |
int notaligned_nonstatic_fields_end = next_nonstatic_padded_offset; |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4084 |
|
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4085 |
int nonstatic_fields_end = align_size_up(notaligned_nonstatic_fields_end, heapOopSize); |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4086 |
int instance_end = align_size_up(notaligned_nonstatic_fields_end, wordSize); |
17612 | 4087 |
int static_fields_end = align_size_up(next_static_byte_offset, wordSize); |
4088 |
||
4089 |
int static_field_size = (static_fields_end - |
|
4090 |
InstanceMirrorKlass::offset_of_static_fields()) / wordSize; |
|
4091 |
nonstatic_field_size = nonstatic_field_size + |
|
4092 |
(nonstatic_fields_end - nonstatic_fields_start) / heapOopSize; |
|
4093 |
||
4094 |
int instance_size = align_object_size(instance_end / wordSize); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4095 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4096 |
assert(instance_size == align_object_size(align_size_up( |
17601
0db4dfbb42ca
8012939: @Contended doesn't work correctly with inheritance
shade
parents:
17374
diff
changeset
|
4097 |
(instanceOopDesc::base_offset_in_bytes() + nonstatic_field_size*heapOopSize), |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4098 |
wordSize) / wordSize), "consistent layout helper value"); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4099 |
|
17831
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4100 |
// Invariant: nonstatic_field end/start should only change if there are |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4101 |
// nonstatic fields in the class, or if the class is contended. We compare |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4102 |
// against the non-aligned value, so that end alignment will not fail the |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4103 |
// assert without actually having the fields. |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4104 |
assert((notaligned_nonstatic_fields_end == nonstatic_fields_start) || |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4105 |
is_contended_class || |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4106 |
(nonstatic_fields_count > 0), "double-check nonstatic start/end"); |
d8112d90739f
8015270: @Contended: fix multiple issues in the layout code
shade
parents:
17826
diff
changeset
|
4107 |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4108 |
// Number of non-static oop map blocks allocated at end of klass. |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4109 |
const unsigned int total_oop_map_count = |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4110 |
compute_oop_map_count(_super_klass, nonstatic_oop_map_count, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4111 |
first_nonstatic_oop_offset); |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4112 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4113 |
#ifndef PRODUCT |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4114 |
if (PrintFieldLayout) { |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4115 |
print_field_layout(_class_name, |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4116 |
_fields, |
34666 | 4117 |
cp, |
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4118 |
instance_size, |
17612 | 4119 |
nonstatic_fields_start, |
4120 |
nonstatic_fields_end, |
|
4121 |
static_fields_end); |
|
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4122 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4123 |
|
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4124 |
#endif |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4125 |
// Pass back information needed for InstanceKlass creation |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4126 |
info->nonstatic_oop_offsets = nonstatic_oop_offsets; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4127 |
info->nonstatic_oop_counts = nonstatic_oop_counts; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4128 |
info->nonstatic_oop_map_count = nonstatic_oop_map_count; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4129 |
info->total_oop_map_count = total_oop_map_count; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4130 |
info->instance_size = instance_size; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4131 |
info->static_field_size = static_field_size; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4132 |
info->nonstatic_field_size = nonstatic_field_size; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4133 |
info->has_nonstatic_fields = has_nonstatic_fields; |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4134 |
} |
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4135 |
|
34666 | 4136 |
static void fill_oop_maps(const InstanceKlass* k, |
4137 |
unsigned int nonstatic_oop_map_count, |
|
4138 |
const int* nonstatic_oop_offsets, |
|
4139 |
const unsigned int* nonstatic_oop_counts) { |
|
4140 |
||
4141 |
assert(k != NULL, "invariant"); |
|
4142 |
||
1 | 4143 |
OopMapBlock* this_oop_map = k->start_of_nonstatic_oop_maps(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4144 |
const InstanceKlass* const super = k->superklass(); |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
4145 |
const unsigned int super_count = super ? super->nonstatic_oop_map_count() : 0; |
3693 | 4146 |
if (super_count > 0) { |
4147 |
// Copy maps from superklass |
|
1 | 4148 |
OopMapBlock* super_oop_map = super->start_of_nonstatic_oop_maps(); |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
4149 |
for (unsigned int i = 0; i < super_count; ++i) { |
1 | 4150 |
*this_oop_map++ = *super_oop_map++; |
4151 |
} |
|
4152 |
} |
|
3693 | 4153 |
|
1 | 4154 |
if (nonstatic_oop_map_count > 0) { |
3693 | 4155 |
if (super_count + nonstatic_oop_map_count > k->nonstatic_oop_map_count()) { |
4156 |
// The counts differ because there is no gap between superklass's last oop |
|
4157 |
// field and the first local oop field. Extend the last oop map copied |
|
1 | 4158 |
// from the superklass instead of creating new one. |
4159 |
nonstatic_oop_map_count--; |
|
4160 |
nonstatic_oop_offsets++; |
|
4161 |
this_oop_map--; |
|
3693 | 4162 |
this_oop_map->set_count(this_oop_map->count() + *nonstatic_oop_counts++); |
1 | 4163 |
this_oop_map++; |
4164 |
} |
|
3693 | 4165 |
|
1 | 4166 |
// Add new map blocks, fill them |
4167 |
while (nonstatic_oop_map_count-- > 0) { |
|
4168 |
this_oop_map->set_offset(*nonstatic_oop_offsets++); |
|
3693 | 4169 |
this_oop_map->set_count(*nonstatic_oop_counts++); |
1 | 4170 |
this_oop_map++; |
4171 |
} |
|
3693 | 4172 |
assert(k->start_of_nonstatic_oop_maps() + k->nonstatic_oop_map_count() == |
4173 |
this_oop_map, "sanity"); |
|
1 | 4174 |
} |
4175 |
} |
|
4176 |
||
4177 |
||
34666 | 4178 |
void ClassFileParser::set_precomputed_flags(InstanceKlass* ik) { |
4179 |
assert(ik != NULL, "invariant"); |
|
4180 |
||
4181 |
const Klass* const super = ik->super(); |
|
1 | 4182 |
|
4183 |
// Check if this klass has an empty finalize method (i.e. one with return bytecode only), |
|
4184 |
// in which case we don't have to register objects as finalizable |
|
4185 |
if (!_has_empty_finalizer) { |
|
4186 |
if (_has_finalizer || |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4187 |
(super != NULL && super->has_finalizer())) { |
34666 | 4188 |
ik->set_has_finalizer(); |
1 | 4189 |
} |
4190 |
} |
|
4191 |
||
4192 |
#ifdef ASSERT |
|
4193 |
bool f = false; |
|
34666 | 4194 |
const Method* const m = ik->lookup_method(vmSymbols::finalize_method_name(), |
4195 |
vmSymbols::void_method_signature()); |
|
1 | 4196 |
if (m != NULL && !m->is_empty_method()) { |
24828
dd5406c950a1
6904403: assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
dsamersoff
parents:
24454
diff
changeset
|
4197 |
f = true; |
1 | 4198 |
} |
24828
dd5406c950a1
6904403: assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
dsamersoff
parents:
24454
diff
changeset
|
4199 |
|
dd5406c950a1
6904403: assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
dsamersoff
parents:
24454
diff
changeset
|
4200 |
// Spec doesn't prevent agent from redefinition of empty finalizer. |
dd5406c950a1
6904403: assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
dsamersoff
parents:
24454
diff
changeset
|
4201 |
// Despite the fact that it's generally bad idea and redefined finalizer |
dd5406c950a1
6904403: assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
dsamersoff
parents:
24454
diff
changeset
|
4202 |
// will not work as expected we shouldn't abort vm in this case |
34666 | 4203 |
if (!ik->has_redefined_this_or_super()) { |
4204 |
assert(ik->has_finalizer() == f, "inconsistent has_finalizer"); |
|
24828
dd5406c950a1
6904403: assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
dsamersoff
parents:
24454
diff
changeset
|
4205 |
} |
1 | 4206 |
#endif |
4207 |
||
4208 |
// Check if this klass supports the java.lang.Cloneable interface |
|
4571 | 4209 |
if (SystemDictionary::Cloneable_klass_loaded()) { |
34666 | 4210 |
if (ik->is_subtype_of(SystemDictionary::Cloneable_klass())) { |
4211 |
ik->set_is_cloneable(); |
|
1 | 4212 |
} |
4213 |
} |
|
4214 |
||
4215 |
// Check if this klass has a vanilla default constructor |
|
4216 |
if (super == NULL) { |
|
4217 |
// java.lang.Object has empty default constructor |
|
34666 | 4218 |
ik->set_has_vanilla_constructor(); |
1 | 4219 |
} else { |
14488 | 4220 |
if (super->has_vanilla_constructor() && |
1 | 4221 |
_has_vanilla_constructor) { |
34666 | 4222 |
ik->set_has_vanilla_constructor(); |
1 | 4223 |
} |
4224 |
#ifdef ASSERT |
|
4225 |
bool v = false; |
|
14488 | 4226 |
if (super->has_vanilla_constructor()) { |
34666 | 4227 |
const Method* const constructor = |
4228 |
ik->find_method(vmSymbols::object_initializer_name(), |
|
4229 |
vmSymbols::void_method_signature()); |
|
1 | 4230 |
if (constructor != NULL && constructor->is_vanilla_constructor()) { |
4231 |
v = true; |
|
4232 |
} |
|
4233 |
} |
|
34666 | 4234 |
assert(v == ik->has_vanilla_constructor(), "inconsistent has_vanilla_constructor"); |
1 | 4235 |
#endif |
4236 |
} |
|
4237 |
||
4238 |
// If it cannot be fast-path allocated, set a bit in the layout helper. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4239 |
// See documentation of InstanceKlass::can_be_fastpath_allocated(). |
34666 | 4240 |
assert(ik->size_helper() > 0, "layout_helper is initialized"); |
4241 |
if ((!RegisterFinalizersAtInit && ik->has_finalizer()) |
|
4242 |
|| ik->is_abstract() || ik->is_interface() |
|
4243 |
|| (ik->name() == vmSymbols::java_lang_Class() && ik->class_loader() == NULL) |
|
4244 |
|| ik->size_helper() >= FastAllocateSizeLimit) { |
|
1 | 4245 |
// Forbid fast-path allocation. |
34666 | 4246 |
const jint lh = Klass::instance_layout_helper(ik->size_helper(), true); |
4247 |
ik->set_layout_helper(lh); |
|
1 | 4248 |
} |
4249 |
} |
|
4250 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4251 |
// Attach super classes and interface classes to class loader data |
34666 | 4252 |
static void record_defined_class_dependencies(const InstanceKlass* defined_klass, |
4253 |
TRAPS) { |
|
4254 |
assert(defined_klass != NULL, "invariant"); |
|
4255 |
||
4256 |
ClassLoaderData* const defining_loader_data = defined_klass->class_loader_data(); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4257 |
if (defining_loader_data->is_the_null_class_loader_data()) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4258 |
// Dependencies to null class loader data are implicit. |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4259 |
return; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4260 |
} else { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4261 |
// add super class dependency |
34666 | 4262 |
Klass* const super = defined_klass->super(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4263 |
if (super != NULL) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4264 |
defining_loader_data->record_dependency(super, CHECK); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4265 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4266 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4267 |
// add super interface dependencies |
34666 | 4268 |
const Array<Klass*>* const local_interfaces = defined_klass->local_interfaces(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4269 |
if (local_interfaces != NULL) { |
34666 | 4270 |
const int length = local_interfaces->length(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4271 |
for (int i = 0; i < length; i++) { |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4272 |
defining_loader_data->record_dependency(local_interfaces->at(i), CHECK); |
1 | 4273 |
} |
4274 |
} |
|
4275 |
} |
|
4276 |
} |
|
4277 |
||
15935
50da9e5eb858
8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents:
15932
diff
changeset
|
4278 |
// utility methods for appending an array with check for duplicates |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4279 |
|
34666 | 4280 |
static void append_interfaces(GrowableArray<Klass*>* result, |
4281 |
const Array<Klass*>* const ifs) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4282 |
// iterate over new interfaces |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4283 |
for (int i = 0; i < ifs->length(); i++) { |
34666 | 4284 |
Klass* const e = ifs->at(i); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4285 |
assert(e->is_klass() && InstanceKlass::cast(e)->is_interface(), "just checking"); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4286 |
// add new interface |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4287 |
result->append_if_missing(e); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4288 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4289 |
} |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4290 |
|
34666 | 4291 |
static Array<Klass*>* compute_transitive_interfaces(const InstanceKlass* super, |
4292 |
Array<Klass*>* local_ifs, |
|
4293 |
ClassLoaderData* loader_data, |
|
4294 |
TRAPS) { |
|
4295 |
assert(local_ifs != NULL, "invariant"); |
|
4296 |
assert(loader_data != NULL, "invariant"); |
|
4297 |
||
1 | 4298 |
// Compute maximum size for transitive interfaces |
4299 |
int max_transitive_size = 0; |
|
4300 |
int super_size = 0; |
|
4301 |
// Add superclass transitive interfaces size |
|
34666 | 4302 |
if (super != NULL) { |
1 | 4303 |
super_size = super->transitive_interfaces()->length(); |
4304 |
max_transitive_size += super_size; |
|
4305 |
} |
|
4306 |
// Add local interfaces' super interfaces |
|
34666 | 4307 |
const int local_size = local_ifs->length(); |
1 | 4308 |
for (int i = 0; i < local_size; i++) { |
34666 | 4309 |
Klass* const l = local_ifs->at(i); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4310 |
max_transitive_size += InstanceKlass::cast(l)->transitive_interfaces()->length(); |
1 | 4311 |
} |
4312 |
// Finally add local interfaces |
|
4313 |
max_transitive_size += local_size; |
|
4314 |
// Construct array |
|
4315 |
if (max_transitive_size == 0) { |
|
4316 |
// no interfaces, use canonicalized array |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4317 |
return Universe::the_empty_klass_array(); |
1 | 4318 |
} else if (max_transitive_size == super_size) { |
4319 |
// no new local interfaces added, share superklass' transitive interface array |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4320 |
return super->transitive_interfaces(); |
1 | 4321 |
} else if (max_transitive_size == local_size) { |
4322 |
// only local interfaces added, share local interface array |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4323 |
return local_ifs; |
1 | 4324 |
} else { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4325 |
ResourceMark rm; |
34666 | 4326 |
GrowableArray<Klass*>* const result = new GrowableArray<Klass*>(max_transitive_size); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4327 |
|
1 | 4328 |
// Copy down from superclass |
34666 | 4329 |
if (super != NULL) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4330 |
append_interfaces(result, super->transitive_interfaces()); |
1 | 4331 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4332 |
|
1 | 4333 |
// Copy down from local interfaces' superinterfaces |
34666 | 4334 |
for (int i = 0; i < local_size; i++) { |
4335 |
Klass* const l = local_ifs->at(i); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4336 |
append_interfaces(result, InstanceKlass::cast(l)->transitive_interfaces()); |
1 | 4337 |
} |
4338 |
// Finally add local interfaces |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4339 |
append_interfaces(result, local_ifs); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4340 |
|
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4341 |
// length will be less than the max_transitive_size if duplicates were removed |
34666 | 4342 |
const int length = result->length(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4343 |
assert(length <= max_transitive_size, "just checking"); |
34666 | 4344 |
Array<Klass*>* const new_result = |
4345 |
MetadataFactory::new_array<Klass*>(loader_data, length, CHECK_NULL); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4346 |
for (int i = 0; i < length; i++) { |
34666 | 4347 |
Klass* const e = result->at(i); |
4348 |
assert(e != NULL, "just checking"); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4349 |
new_result->at_put(i, e); |
1 | 4350 |
} |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4351 |
return new_result; |
1 | 4352 |
} |
4353 |
} |
|
4354 |
||
34666 | 4355 |
static void check_super_class_access(const InstanceKlass* this_klass, TRAPS) { |
4356 |
assert(this_klass != NULL, "invariant"); |
|
4357 |
const Klass* const super = this_klass->super(); |
|
1 | 4358 |
if ((super != NULL) && |
34666 | 4359 |
(!Reflection::verify_class_access(this_klass, super, false))) { |
1 | 4360 |
ResourceMark rm(THREAD); |
4361 |
Exceptions::fthrow( |
|
4362 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4363 |
vmSymbols::java_lang_IllegalAccessError(), |
1 | 4364 |
"class %s cannot access its superclass %s", |
4365 |
this_klass->external_name(), |
|
33602 | 4366 |
super->external_name() |
1 | 4367 |
); |
4368 |
return; |
|
4369 |
} |
|
4370 |
} |
|
4371 |
||
4372 |
||
34666 | 4373 |
static void check_super_interface_access(const InstanceKlass* this_klass, TRAPS) { |
4374 |
assert(this_klass != NULL, "invariant"); |
|
4375 |
const Array<Klass*>* const local_interfaces = this_klass->local_interfaces(); |
|
4376 |
const int lng = local_interfaces->length(); |
|
1 | 4377 |
for (int i = lng - 1; i >= 0; i--) { |
34666 | 4378 |
Klass* const k = local_interfaces->at(i); |
14488 | 4379 |
assert (k != NULL && k->is_interface(), "invalid interface"); |
34666 | 4380 |
if (!Reflection::verify_class_access(this_klass, k, false)) { |
1 | 4381 |
ResourceMark rm(THREAD); |
4382 |
Exceptions::fthrow( |
|
4383 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4384 |
vmSymbols::java_lang_IllegalAccessError(), |
1 | 4385 |
"class %s cannot access its superinterface %s", |
4386 |
this_klass->external_name(), |
|
33602 | 4387 |
k->external_name() |
1 | 4388 |
); |
4389 |
return; |
|
4390 |
} |
|
4391 |
} |
|
4392 |
} |
|
4393 |
||
4394 |
||
34666 | 4395 |
static void check_final_method_override(const InstanceKlass* this_klass, TRAPS) { |
4396 |
assert(this_klass != NULL, "invariant"); |
|
4397 |
const Array<Method*>* const methods = this_klass->methods(); |
|
4398 |
const int num_methods = methods->length(); |
|
1 | 4399 |
|
4400 |
// go thru each method and check if it overrides a final method |
|
4401 |
for (int index = 0; index < num_methods; index++) { |
|
34666 | 4402 |
const Method* const m = methods->at(index); |
1 | 4403 |
|
21765
e2c19a9f1039
8028520: JVM should not throw VerifyError when a private method overrides a final method
hseigel
parents:
21556
diff
changeset
|
4404 |
// skip private, static, and <init> methods |
e2c19a9f1039
8028520: JVM should not throw VerifyError when a private method overrides a final method
hseigel
parents:
21556
diff
changeset
|
4405 |
if ((!m->is_private() && !m->is_static()) && |
1 | 4406 |
(m->name() != vmSymbols::object_initializer_name())) { |
4407 |
||
34666 | 4408 |
const Symbol* const name = m->name(); |
4409 |
const Symbol* const signature = m->signature(); |
|
4410 |
const Klass* k = this_klass->super(); |
|
4411 |
const Method* super_m = NULL; |
|
1 | 4412 |
while (k != NULL) { |
4413 |
// skip supers that don't have final methods. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4414 |
if (k->has_final_method()) { |
1 | 4415 |
// lookup a matching method in the super class hierarchy |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4416 |
super_m = InstanceKlass::cast(k)->lookup_method(name, signature); |
1 | 4417 |
if (super_m == NULL) { |
4418 |
break; // didn't find any match; get out |
|
4419 |
} |
|
4420 |
||
22534
520f7a937396
8028553: The JVM should not throw VerifyError when 'overriding' a static final method in a superclass.
hseigel
parents:
22485
diff
changeset
|
4421 |
if (super_m->is_final() && !super_m->is_static() && |
520f7a937396
8028553: The JVM should not throw VerifyError when 'overriding' a static final method in a superclass.
hseigel
parents:
22485
diff
changeset
|
4422 |
// matching method in super is final, and not static |
34666 | 4423 |
(Reflection::verify_field_access(this_klass, |
1 | 4424 |
super_m->method_holder(), |
4425 |
super_m->method_holder(), |
|
4426 |
super_m->access_flags(), false)) |
|
4427 |
// this class can access super final method and therefore override |
|
4428 |
) { |
|
4429 |
ResourceMark rm(THREAD); |
|
4430 |
Exceptions::fthrow( |
|
4431 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4432 |
vmSymbols::java_lang_VerifyError(), |
25470
4e69740b1547
8026894: Improve VerifyError message about overriding a final method
hseigel
parents:
25326
diff
changeset
|
4433 |
"class %s overrides final method %s.%s%s", |
1 | 4434 |
this_klass->external_name(), |
25470
4e69740b1547
8026894: Improve VerifyError message about overriding a final method
hseigel
parents:
25326
diff
changeset
|
4435 |
super_m->method_holder()->external_name(), |
1 | 4436 |
name->as_C_string(), |
4437 |
signature->as_C_string() |
|
4438 |
); |
|
4439 |
return; |
|
4440 |
} |
|
4441 |
||
4442 |
// continue to look from super_m's holder's super. |
|
14391
df0a1573d5bd
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
14385
diff
changeset
|
4443 |
k = super_m->method_holder()->super(); |
1 | 4444 |
continue; |
4445 |
} |
|
4446 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13391
diff
changeset
|
4447 |
k = k->super(); |
1 | 4448 |
} |
4449 |
} |
|
4450 |
} |
|
4451 |
} |
|
4452 |
||
4453 |
||
4454 |
// assumes that this_klass is an interface |
|
34666 | 4455 |
static void check_illegal_static_method(const InstanceKlass* this_klass, TRAPS) { |
4456 |
assert(this_klass != NULL, "invariant"); |
|
1 | 4457 |
assert(this_klass->is_interface(), "not an interface"); |
34666 | 4458 |
const Array<Method*>* methods = this_klass->methods(); |
4459 |
const int num_methods = methods->length(); |
|
1 | 4460 |
|
4461 |
for (int index = 0; index < num_methods; index++) { |
|
34666 | 4462 |
const Method* const m = methods->at(index); |
1 | 4463 |
// if m is static and not the init method, throw a verify error |
4464 |
if ((m->is_static()) && (m->name() != vmSymbols::class_initializer_name())) { |
|
4465 |
ResourceMark rm(THREAD); |
|
4466 |
Exceptions::fthrow( |
|
4467 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4468 |
vmSymbols::java_lang_VerifyError(), |
1 | 4469 |
"Illegal static method %s in interface %s", |
4470 |
m->name()->as_C_string(), |
|
4471 |
this_klass->external_name() |
|
4472 |
); |
|
4473 |
return; |
|
4474 |
} |
|
4475 |
} |
|
4476 |
} |
|
4477 |
||
4478 |
// utility methods for format checking |
|
4479 |
||
34666 | 4480 |
void ClassFileParser::verify_legal_class_modifiers(jint flags, TRAPS) const { |
1 | 4481 |
if (!_need_verify) { return; } |
4482 |
||
4483 |
const bool is_interface = (flags & JVM_ACC_INTERFACE) != 0; |
|
4484 |
const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0; |
|
4485 |
const bool is_final = (flags & JVM_ACC_FINAL) != 0; |
|
4486 |
const bool is_super = (flags & JVM_ACC_SUPER) != 0; |
|
4487 |
const bool is_enum = (flags & JVM_ACC_ENUM) != 0; |
|
4488 |
const bool is_annotation = (flags & JVM_ACC_ANNOTATION) != 0; |
|
4489 |
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
|
4490 |
||
4491 |
if ((is_abstract && is_final) || |
|
4492 |
(is_interface && !is_abstract) || |
|
4493 |
(is_interface && major_gte_15 && (is_super || is_enum)) || |
|
4494 |
(!is_interface && major_gte_15 && is_annotation)) { |
|
4495 |
ResourceMark rm(THREAD); |
|
4496 |
Exceptions::fthrow( |
|
4497 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4498 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4499 |
"Illegal class modifiers in class %s: 0x%X", |
4500 |
_class_name->as_C_string(), flags |
|
4501 |
); |
|
4502 |
return; |
|
4503 |
} |
|
4504 |
} |
|
4505 |
||
34666 | 4506 |
static bool has_illegal_visibility(jint flags) { |
1 | 4507 |
const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; |
4508 |
const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; |
|
4509 |
const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; |
|
4510 |
||
4511 |
return ((is_public && is_protected) || |
|
4512 |
(is_public && is_private) || |
|
4513 |
(is_protected && is_private)); |
|
4514 |
} |
|
4515 |
||
34666 | 4516 |
static bool is_supported_version(u2 major, u2 minor){ |
4517 |
const u2 max_version = JAVA_MAX_SUPPORTED_VERSION; |
|
1 | 4518 |
return (major >= JAVA_MIN_SUPPORTED_VERSION) && |
602
92e03692ddd6
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
383
diff
changeset
|
4519 |
(major <= max_version) && |
92e03692ddd6
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
383
diff
changeset
|
4520 |
((major != max_version) || |
1 | 4521 |
(minor <= JAVA_MAX_SUPPORTED_MINOR_VERSION)); |
4522 |
} |
|
4523 |
||
34666 | 4524 |
void ClassFileParser::verify_legal_field_modifiers(jint flags, |
4525 |
bool is_interface, |
|
4526 |
TRAPS) const { |
|
1 | 4527 |
if (!_need_verify) { return; } |
4528 |
||
4529 |
const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; |
|
4530 |
const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; |
|
4531 |
const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; |
|
4532 |
const bool is_static = (flags & JVM_ACC_STATIC) != 0; |
|
4533 |
const bool is_final = (flags & JVM_ACC_FINAL) != 0; |
|
4534 |
const bool is_volatile = (flags & JVM_ACC_VOLATILE) != 0; |
|
4535 |
const bool is_transient = (flags & JVM_ACC_TRANSIENT) != 0; |
|
4536 |
const bool is_enum = (flags & JVM_ACC_ENUM) != 0; |
|
4537 |
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
|
4538 |
||
4539 |
bool is_illegal = false; |
|
4540 |
||
4541 |
if (is_interface) { |
|
4542 |
if (!is_public || !is_static || !is_final || is_private || |
|
4543 |
is_protected || is_volatile || is_transient || |
|
4544 |
(major_gte_15 && is_enum)) { |
|
4545 |
is_illegal = true; |
|
4546 |
} |
|
4547 |
} else { // not interface |
|
4548 |
if (has_illegal_visibility(flags) || (is_final && is_volatile)) { |
|
4549 |
is_illegal = true; |
|
4550 |
} |
|
4551 |
} |
|
4552 |
||
4553 |
if (is_illegal) { |
|
4554 |
ResourceMark rm(THREAD); |
|
4555 |
Exceptions::fthrow( |
|
4556 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4557 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4558 |
"Illegal field modifiers in class %s: 0x%X", |
4559 |
_class_name->as_C_string(), flags); |
|
4560 |
return; |
|
4561 |
} |
|
4562 |
} |
|
4563 |
||
34666 | 4564 |
void ClassFileParser::verify_legal_method_modifiers(jint flags, |
4565 |
bool is_interface, |
|
4566 |
const Symbol* name, |
|
4567 |
TRAPS) const { |
|
1 | 4568 |
if (!_need_verify) { return; } |
4569 |
||
4570 |
const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; |
|
4571 |
const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; |
|
4572 |
const bool is_static = (flags & JVM_ACC_STATIC) != 0; |
|
4573 |
const bool is_final = (flags & JVM_ACC_FINAL) != 0; |
|
4574 |
const bool is_native = (flags & JVM_ACC_NATIVE) != 0; |
|
4575 |
const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0; |
|
4576 |
const bool is_bridge = (flags & JVM_ACC_BRIDGE) != 0; |
|
4577 |
const bool is_strict = (flags & JVM_ACC_STRICT) != 0; |
|
4578 |
const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0; |
|
15185
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4579 |
const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; |
1 | 4580 |
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
14385 | 4581 |
const bool major_gte_8 = _major_version >= JAVA_8_VERSION; |
1 | 4582 |
const bool is_initializer = (name == vmSymbols::object_initializer_name()); |
4583 |
||
4584 |
bool is_illegal = false; |
|
4585 |
||
4586 |
if (is_interface) { |
|
15185
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4587 |
if (major_gte_8) { |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4588 |
// Class file version is JAVA_8_VERSION or later Methods of |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4589 |
// interfaces may set any of the flags except ACC_PROTECTED, |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4590 |
// ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED; they must |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4591 |
// have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set. |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4592 |
if ((is_public == is_private) || /* Only one of private and public should be true - XNOR */ |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4593 |
(is_native || is_protected || is_final || is_synchronized) || |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4594 |
// If a specific method of a class or interface has its |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4595 |
// ACC_ABSTRACT flag set, it must not have any of its |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4596 |
// ACC_FINAL, ACC_NATIVE, ACC_PRIVATE, ACC_STATIC, |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4597 |
// ACC_STRICT, or ACC_SYNCHRONIZED flags set. No need to |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4598 |
// check for ACC_FINAL, ACC_NATIVE or ACC_SYNCHRONIZED as |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4599 |
// those flags are illegal irrespective of ACC_ABSTRACT being set or not. |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4600 |
(is_abstract && (is_private || is_static || is_strict))) { |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4601 |
is_illegal = true; |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4602 |
} |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4603 |
} else if (major_gte_15) { |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4604 |
// Class file version in the interval [JAVA_1_5_VERSION, JAVA_8_VERSION) |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4605 |
if (!is_public || is_static || is_final || is_synchronized || |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4606 |
is_native || !is_abstract || is_strict) { |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4607 |
is_illegal = true; |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4608 |
} |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4609 |
} else { |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4610 |
// Class file version is pre-JAVA_1_5_VERSION |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4611 |
if (!is_public || is_static || is_final || is_native || !is_abstract) { |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4612 |
is_illegal = true; |
1ce0205b9a47
8005689: InterfaceAccessFlagsTest failures in Lambda-JDK tests
acorn
parents:
15102
diff
changeset
|
4613 |
} |
1 | 4614 |
} |
4615 |
} else { // not interface |
|
30136
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4616 |
if (has_illegal_visibility(flags)) { |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4617 |
is_illegal = true; |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4618 |
} else { |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4619 |
if (is_initializer) { |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4620 |
if (is_static || is_final || is_synchronized || is_native || |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4621 |
is_abstract || (major_gte_15 && is_bridge)) { |
1 | 4622 |
is_illegal = true; |
4623 |
} |
|
30136
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4624 |
} else { // not initializer |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4625 |
if (is_abstract) { |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4626 |
if ((is_final || is_native || is_private || is_static || |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4627 |
(major_gte_15 && (is_synchronized || is_strict)))) { |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4628 |
is_illegal = true; |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4629 |
} |
1c5202fa105b
8076236: VM permits illegal flags for class init method
hseigel
parents:
29201
diff
changeset
|
4630 |
} |
1 | 4631 |
} |
4632 |
} |
|
4633 |
} |
|
4634 |
||
4635 |
if (is_illegal) { |
|
4636 |
ResourceMark rm(THREAD); |
|
4637 |
Exceptions::fthrow( |
|
4638 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4639 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4640 |
"Method %s in class %s has illegal modifiers: 0x%X", |
4641 |
name->as_C_string(), _class_name->as_C_string(), flags); |
|
4642 |
return; |
|
4643 |
} |
|
4644 |
} |
|
4645 |
||
34666 | 4646 |
void ClassFileParser::verify_legal_utf8(const unsigned char* buffer, |
4647 |
int length, |
|
4648 |
TRAPS) const { |
|
1 | 4649 |
assert(_need_verify, "only called when _need_verify is true"); |
4650 |
int i = 0; |
|
34666 | 4651 |
const int count = length >> 2; |
1 | 4652 |
for (int k=0; k<count; k++) { |
4653 |
unsigned char b0 = buffer[i]; |
|
4654 |
unsigned char b1 = buffer[i+1]; |
|
4655 |
unsigned char b2 = buffer[i+2]; |
|
4656 |
unsigned char b3 = buffer[i+3]; |
|
4657 |
// For an unsigned char v, |
|
4658 |
// (v | v - 1) is < 128 (highest bit 0) for 0 < v < 128; |
|
4659 |
// (v | v - 1) is >= 128 (highest bit 1) for v == 0 or v >= 128. |
|
34666 | 4660 |
const unsigned char res = b0 | b0 - 1 | |
4661 |
b1 | b1 - 1 | |
|
4662 |
b2 | b2 - 1 | |
|
4663 |
b3 | b3 - 1; |
|
1 | 4664 |
if (res >= 128) break; |
4665 |
i += 4; |
|
4666 |
} |
|
4667 |
for(; i < length; i++) { |
|
4668 |
unsigned short c; |
|
4669 |
// no embedded zeros |
|
4670 |
guarantee_property((buffer[i] != 0), "Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4671 |
if(buffer[i] < 128) { |
|
4672 |
continue; |
|
4673 |
} |
|
4674 |
if ((i + 5) < length) { // see if it's legal supplementary character |
|
4675 |
if (UTF8::is_supplementary_character(&buffer[i])) { |
|
4676 |
c = UTF8::get_supplementary_character(&buffer[i]); |
|
4677 |
i += 5; |
|
4678 |
continue; |
|
4679 |
} |
|
4680 |
} |
|
4681 |
switch (buffer[i] >> 4) { |
|
4682 |
default: break; |
|
4683 |
case 0x8: case 0x9: case 0xA: case 0xB: case 0xF: |
|
4684 |
classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4685 |
case 0xC: case 0xD: // 110xxxxx 10xxxxxx |
|
4686 |
c = (buffer[i] & 0x1F) << 6; |
|
4687 |
i++; |
|
4688 |
if ((i < length) && ((buffer[i] & 0xC0) == 0x80)) { |
|
4689 |
c += buffer[i] & 0x3F; |
|
4690 |
if (_major_version <= 47 || c == 0 || c >= 0x80) { |
|
4691 |
// for classes with major > 47, c must a null or a character in its shortest form |
|
4692 |
break; |
|
4693 |
} |
|
4694 |
} |
|
4695 |
classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4696 |
case 0xE: // 1110xxxx 10xxxxxx 10xxxxxx |
|
4697 |
c = (buffer[i] & 0xF) << 12; |
|
4698 |
i += 2; |
|
4699 |
if ((i < length) && ((buffer[i-1] & 0xC0) == 0x80) && ((buffer[i] & 0xC0) == 0x80)) { |
|
4700 |
c += ((buffer[i-1] & 0x3F) << 6) + (buffer[i] & 0x3F); |
|
4701 |
if (_major_version <= 47 || c >= 0x800) { |
|
4702 |
// for classes with major > 47, c must be in its shortest form |
|
4703 |
break; |
|
4704 |
} |
|
4705 |
} |
|
4706 |
classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4707 |
} // end of switch |
|
4708 |
} // end of for |
|
4709 |
} |
|
4710 |
||
34666 | 4711 |
// Unqualified names may not contain the characters '.', ';', '[', or '/'. |
4712 |
// Method names also may not contain the characters '<' or '>', unless <init> |
|
4713 |
// or <clinit>. Note that method names may not be <init> or <clinit> in this |
|
4714 |
// method. Because these names have been checked as special cases before |
|
4715 |
// calling this method in verify_legal_method_name. |
|
4716 |
static bool verify_unqualified_name(const char* name, |
|
4717 |
unsigned int length, |
|
4718 |
int type) { |
|
4719 |
for (const char* p = name; p != name + length;) { |
|
4720 |
jchar ch = *p; |
|
4721 |
if (ch < 128) { |
|
4722 |
p++; |
|
4723 |
if (ch == '.' || ch == ';' || ch == '[') { |
|
4724 |
return false; // do not permit '.', ';', or '[' |
|
4725 |
} |
|
4726 |
if (type != LegalClass && ch == '/') { |
|
4727 |
return false; // do not permit '/' unless it's class name |
|
4728 |
} |
|
4729 |
if (type == LegalMethod && (ch == '<' || ch == '>')) { |
|
4730 |
return false; // do not permit '<' or '>' in method names |
|
4731 |
} |
|
4732 |
} |
|
4733 |
else { |
|
4734 |
char* tmp_p = UTF8::next(p, &ch); |
|
4735 |
p = tmp_p; |
|
4736 |
} |
|
4737 |
} |
|
4738 |
return true; |
|
4739 |
} |
|
4740 |
||
4741 |
// Take pointer to a string. Skip over the longest part of the string that could |
|
4742 |
// be taken as a fieldname. Allow '/' if slash_ok is true. |
|
4743 |
// Return a pointer to just past the fieldname. |
|
4744 |
// Return NULL if no fieldname at all was found, or in the case of slash_ok |
|
4745 |
// being true, we saw consecutive slashes (meaning we were looking for a |
|
4746 |
// qualified path but found something that was badly-formed). |
|
4747 |
static const char* skip_over_field_name(const char* name, |
|
4748 |
bool slash_ok, |
|
4749 |
unsigned int length) { |
|
4750 |
const char* p; |
|
4751 |
jboolean last_is_slash = false; |
|
4752 |
jboolean not_first_ch = false; |
|
4753 |
||
4754 |
for (p = name; p != name + length; not_first_ch = true) { |
|
4755 |
const char* old_p = p; |
|
4756 |
jchar ch = *p; |
|
4757 |
if (ch < 128) { |
|
4758 |
p++; |
|
4759 |
// quick check for ascii |
|
4760 |
if ((ch >= 'a' && ch <= 'z') || |
|
4761 |
(ch >= 'A' && ch <= 'Z') || |
|
4762 |
(ch == '_' || ch == '$') || |
|
4763 |
(not_first_ch && ch >= '0' && ch <= '9')) { |
|
4764 |
last_is_slash = false; |
|
4765 |
continue; |
|
4766 |
} |
|
4767 |
if (slash_ok && ch == '/') { |
|
4768 |
if (last_is_slash) { |
|
4769 |
return NULL; // Don't permit consecutive slashes |
|
4770 |
} |
|
4771 |
last_is_slash = true; |
|
4772 |
continue; |
|
4773 |
} |
|
4774 |
} |
|
4775 |
else { |
|
4776 |
jint unicode_ch; |
|
4777 |
char* tmp_p = UTF8::next_character(p, &unicode_ch); |
|
4778 |
p = tmp_p; |
|
4779 |
last_is_slash = false; |
|
4780 |
// Check if ch is Java identifier start or is Java identifier part |
|
4781 |
// 4672820: call java.lang.Character methods directly without generating separate tables. |
|
4782 |
EXCEPTION_MARK; |
|
4783 |
||
4784 |
// return value |
|
4785 |
JavaValue result(T_BOOLEAN); |
|
4786 |
// Set up the arguments to isJavaIdentifierStart and isJavaIdentifierPart |
|
4787 |
JavaCallArguments args; |
|
4788 |
args.push_int(unicode_ch); |
|
4789 |
||
4790 |
// public static boolean isJavaIdentifierStart(char ch); |
|
4791 |
JavaCalls::call_static(&result, |
|
4792 |
SystemDictionary::Character_klass(), |
|
4793 |
vmSymbols::isJavaIdentifierStart_name(), |
|
4794 |
vmSymbols::int_bool_signature(), |
|
4795 |
&args, |
|
4796 |
THREAD); |
|
4797 |
||
4798 |
if (HAS_PENDING_EXCEPTION) { |
|
4799 |
CLEAR_PENDING_EXCEPTION; |
|
4800 |
return 0; |
|
4801 |
} |
|
4802 |
if (result.get_jboolean()) { |
|
4803 |
continue; |
|
4804 |
} |
|
4805 |
||
4806 |
if (not_first_ch) { |
|
4807 |
// public static boolean isJavaIdentifierPart(char ch); |
|
4808 |
JavaCalls::call_static(&result, |
|
4809 |
SystemDictionary::Character_klass(), |
|
4810 |
vmSymbols::isJavaIdentifierPart_name(), |
|
4811 |
vmSymbols::int_bool_signature(), |
|
4812 |
&args, |
|
4813 |
THREAD); |
|
4814 |
||
4815 |
if (HAS_PENDING_EXCEPTION) { |
|
4816 |
CLEAR_PENDING_EXCEPTION; |
|
4817 |
return 0; |
|
4818 |
} |
|
4819 |
||
4820 |
if (result.get_jboolean()) { |
|
4821 |
continue; |
|
4822 |
} |
|
4823 |
} |
|
4824 |
} |
|
4825 |
return (not_first_ch) ? old_p : NULL; |
|
4826 |
} |
|
4827 |
return (not_first_ch) ? p : NULL; |
|
4828 |
} |
|
4829 |
||
4830 |
// Take pointer to a string. Skip over the longest part of the string that could |
|
4831 |
// be taken as a field signature. Allow "void" if void_ok. |
|
4832 |
// Return a pointer to just past the signature. |
|
4833 |
// Return NULL if no legal signature is found. |
|
4834 |
const char* ClassFileParser::skip_over_field_signature(const char* signature, |
|
4835 |
bool void_ok, |
|
4836 |
unsigned int length, |
|
4837 |
TRAPS) const { |
|
4838 |
unsigned int array_dim = 0; |
|
4839 |
while (length > 0) { |
|
4840 |
switch (signature[0]) { |
|
4841 |
case JVM_SIGNATURE_VOID: if (!void_ok) { return NULL; } |
|
4842 |
case JVM_SIGNATURE_BOOLEAN: |
|
4843 |
case JVM_SIGNATURE_BYTE: |
|
4844 |
case JVM_SIGNATURE_CHAR: |
|
4845 |
case JVM_SIGNATURE_SHORT: |
|
4846 |
case JVM_SIGNATURE_INT: |
|
4847 |
case JVM_SIGNATURE_FLOAT: |
|
4848 |
case JVM_SIGNATURE_LONG: |
|
4849 |
case JVM_SIGNATURE_DOUBLE: |
|
4850 |
return signature + 1; |
|
4851 |
case JVM_SIGNATURE_CLASS: { |
|
4852 |
if (_major_version < JAVA_1_5_VERSION) { |
|
4853 |
// Skip over the class name if one is there |
|
4854 |
const char* const p = skip_over_field_name(signature + 1, true, --length); |
|
4855 |
||
4856 |
// The next character better be a semicolon |
|
4857 |
if (p && (p - signature) > 1 && p[0] == ';') { |
|
4858 |
return p + 1; |
|
4859 |
} |
|
4860 |
} |
|
4861 |
else { |
|
4862 |
// 4900761: For class version > 48, any unicode is allowed in class name. |
|
4863 |
length--; |
|
4864 |
signature++; |
|
4865 |
while (length > 0 && signature[0] != ';') { |
|
4866 |
if (signature[0] == '.') { |
|
4867 |
classfile_parse_error("Class name contains illegal character '.' in descriptor in class file %s", CHECK_0); |
|
4868 |
} |
|
4869 |
length--; |
|
4870 |
signature++; |
|
4871 |
} |
|
4872 |
if (signature[0] == ';') { return signature + 1; } |
|
4873 |
} |
|
4874 |
||
4875 |
return NULL; |
|
4876 |
} |
|
4877 |
case JVM_SIGNATURE_ARRAY: |
|
4878 |
array_dim++; |
|
4879 |
if (array_dim > 255) { |
|
4880 |
// 4277370: array descriptor is valid only if it represents 255 or fewer dimensions. |
|
4881 |
classfile_parse_error("Array type descriptor has more than 255 dimensions in class file %s", CHECK_0); |
|
4882 |
} |
|
4883 |
// The rest of what's there better be a legal signature |
|
4884 |
signature++; |
|
4885 |
length--; |
|
4886 |
void_ok = false; |
|
4887 |
break; |
|
4888 |
||
4889 |
default: |
|
4890 |
return NULL; |
|
4891 |
} |
|
4892 |
} |
|
4893 |
return NULL; |
|
4894 |
} |
|
4895 |
||
1 | 4896 |
// Checks if name is a legal class name. |
34666 | 4897 |
void ClassFileParser::verify_legal_class_name(const Symbol* name, TRAPS) const { |
1 | 4898 |
if (!_need_verify || _relax_verify) { return; } |
4899 |
||
4900 |
char buf[fixed_buffer_size]; |
|
4901 |
char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4902 |
unsigned int length = name->utf8_length(); |
|
4903 |
bool legal = false; |
|
4904 |
||
4905 |
if (length > 0) { |
|
34666 | 4906 |
const char* p; |
1 | 4907 |
if (bytes[0] == JVM_SIGNATURE_ARRAY) { |
4908 |
p = skip_over_field_signature(bytes, false, length, CHECK); |
|
4909 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4910 |
} else if (_major_version < JAVA_1_5_VERSION) { |
|
4911 |
if (bytes[0] != '<') { |
|
4912 |
p = skip_over_field_name(bytes, true, length); |
|
4913 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4914 |
} |
|
4915 |
} else { |
|
4916 |
// 4900761: relax the constraints based on JSR202 spec |
|
4917 |
// Class names may be drawn from the entire Unicode character set. |
|
4918 |
// Identifiers between '/' must be unqualified names. |
|
4919 |
// The utf8 string has been verified when parsing cpool entries. |
|
4920 |
legal = verify_unqualified_name(bytes, length, LegalClass); |
|
4921 |
} |
|
4922 |
} |
|
4923 |
if (!legal) { |
|
4924 |
ResourceMark rm(THREAD); |
|
34666 | 4925 |
assert(_class_name != NULL, "invariant"); |
1 | 4926 |
Exceptions::fthrow( |
4927 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4928 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4929 |
"Illegal class name \"%s\" in class file %s", bytes, |
4930 |
_class_name->as_C_string() |
|
4931 |
); |
|
4932 |
return; |
|
4933 |
} |
|
4934 |
} |
|
4935 |
||
4936 |
// Checks if name is a legal field name. |
|
34666 | 4937 |
void ClassFileParser::verify_legal_field_name(const Symbol* name, TRAPS) const { |
1 | 4938 |
if (!_need_verify || _relax_verify) { return; } |
4939 |
||
4940 |
char buf[fixed_buffer_size]; |
|
4941 |
char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4942 |
unsigned int length = name->utf8_length(); |
|
4943 |
bool legal = false; |
|
4944 |
||
4945 |
if (length > 0) { |
|
4946 |
if (_major_version < JAVA_1_5_VERSION) { |
|
4947 |
if (bytes[0] != '<') { |
|
34666 | 4948 |
const char* p = skip_over_field_name(bytes, false, length); |
1 | 4949 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
4950 |
} |
|
4951 |
} else { |
|
4952 |
// 4881221: relax the constraints based on JSR202 spec |
|
4953 |
legal = verify_unqualified_name(bytes, length, LegalField); |
|
4954 |
} |
|
4955 |
} |
|
4956 |
||
4957 |
if (!legal) { |
|
4958 |
ResourceMark rm(THREAD); |
|
34666 | 4959 |
assert(_class_name != NULL, "invariant"); |
1 | 4960 |
Exceptions::fthrow( |
4961 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4962 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4963 |
"Illegal field name \"%s\" in class %s", bytes, |
4964 |
_class_name->as_C_string() |
|
4965 |
); |
|
4966 |
return; |
|
4967 |
} |
|
4968 |
} |
|
4969 |
||
4970 |
// Checks if name is a legal method name. |
|
34666 | 4971 |
void ClassFileParser::verify_legal_method_name(const Symbol* name, TRAPS) const { |
1 | 4972 |
if (!_need_verify || _relax_verify) { return; } |
4973 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4974 |
assert(name != NULL, "method name is null"); |
1 | 4975 |
char buf[fixed_buffer_size]; |
4976 |
char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4977 |
unsigned int length = name->utf8_length(); |
|
4978 |
bool legal = false; |
|
4979 |
||
4980 |
if (length > 0) { |
|
4981 |
if (bytes[0] == '<') { |
|
4982 |
if (name == vmSymbols::object_initializer_name() || name == vmSymbols::class_initializer_name()) { |
|
4983 |
legal = true; |
|
4984 |
} |
|
4985 |
} else if (_major_version < JAVA_1_5_VERSION) { |
|
34666 | 4986 |
const char* p; |
1 | 4987 |
p = skip_over_field_name(bytes, false, length); |
4988 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4989 |
} else { |
|
4990 |
// 4881221: relax the constraints based on JSR202 spec |
|
4991 |
legal = verify_unqualified_name(bytes, length, LegalMethod); |
|
4992 |
} |
|
4993 |
} |
|
4994 |
||
4995 |
if (!legal) { |
|
4996 |
ResourceMark rm(THREAD); |
|
34666 | 4997 |
assert(_class_name != NULL, "invariant"); |
1 | 4998 |
Exceptions::fthrow( |
4999 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
5000 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 5001 |
"Illegal method name \"%s\" in class %s", bytes, |
5002 |
_class_name->as_C_string() |
|
5003 |
); |
|
5004 |
return; |
|
5005 |
} |
|
5006 |
} |
|
5007 |
||
5008 |
||
5009 |
// Checks if signature is a legal field signature. |
|
34666 | 5010 |
void ClassFileParser::verify_legal_field_signature(const Symbol* name, |
5011 |
const Symbol* signature, |
|
5012 |
TRAPS) const { |
|
1 | 5013 |
if (!_need_verify) { return; } |
5014 |
||
5015 |
char buf[fixed_buffer_size]; |
|
34666 | 5016 |
const char* const bytes = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
5017 |
const unsigned int length = signature->utf8_length(); |
|
5018 |
const char* const p = skip_over_field_signature(bytes, false, length, CHECK); |
|
1 | 5019 |
|
5020 |
if (p == NULL || (p - bytes) != (int)length) { |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
5021 |
throwIllegalSignature("Field", name, signature, CHECK); |
1 | 5022 |
} |
5023 |
} |
|
5024 |
||
5025 |
// Checks if signature is a legal method signature. |
|
5026 |
// Returns number of parameters |
|
34666 | 5027 |
int ClassFileParser::verify_legal_method_signature(const Symbol* name, |
5028 |
const Symbol* signature, |
|
5029 |
TRAPS) const { |
|
1 | 5030 |
if (!_need_verify) { |
5031 |
// make sure caller's args_size will be less than 0 even for non-static |
|
5032 |
// method so it will be recomputed in compute_size_of_parameters(). |
|
5033 |
return -2; |
|
5034 |
} |
|
5035 |
||
33799
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5036 |
// Class initializers cannot have args for class format version >= 51. |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5037 |
if (name == vmSymbols::class_initializer_name() && |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5038 |
signature != vmSymbols::void_method_signature() && |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5039 |
_major_version >= JAVA_7_VERSION) { |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5040 |
throwIllegalSignature("Method", name, signature, CHECK_0); |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5041 |
return 0; |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5042 |
} |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5043 |
|
1 | 5044 |
unsigned int args_size = 0; |
5045 |
char buf[fixed_buffer_size]; |
|
34666 | 5046 |
const char* p = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
1 | 5047 |
unsigned int length = signature->utf8_length(); |
34666 | 5048 |
const char* nextp; |
1 | 5049 |
|
5050 |
// The first character must be a '(' |
|
5051 |
if ((length > 0) && (*p++ == JVM_SIGNATURE_FUNC)) { |
|
5052 |
length--; |
|
5053 |
// Skip over legal field signatures |
|
5054 |
nextp = skip_over_field_signature(p, false, length, CHECK_0); |
|
5055 |
while ((length > 0) && (nextp != NULL)) { |
|
5056 |
args_size++; |
|
5057 |
if (p[0] == 'J' || p[0] == 'D') { |
|
5058 |
args_size++; |
|
5059 |
} |
|
5060 |
length -= nextp - p; |
|
5061 |
p = nextp; |
|
5062 |
nextp = skip_over_field_signature(p, false, length, CHECK_0); |
|
5063 |
} |
|
5064 |
// The first non-signature thing better be a ')' |
|
5065 |
if ((length > 0) && (*p++ == JVM_SIGNATURE_ENDFUNC)) { |
|
5066 |
length--; |
|
33799
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5067 |
if (name->utf8_length() > 0 && name->byte_at(0) == '<') { |
77ebbd9b0ecc
8139164: JVM should throw ClassFormatError for non-void methods named <clinit>
hseigel
parents:
33612
diff
changeset
|
5068 |
// All internal methods must return void |
1 | 5069 |
if ((length == 1) && (p[0] == JVM_SIGNATURE_VOID)) { |
5070 |
return args_size; |
|
5071 |
} |
|
5072 |
} else { |
|
5073 |
// Now we better just have a return value |
|
5074 |
nextp = skip_over_field_signature(p, true, length, CHECK_0); |
|
5075 |
if (nextp && ((int)length == (nextp - p))) { |
|
5076 |
return args_size; |
|
5077 |
} |
|
5078 |
} |
|
5079 |
} |
|
5080 |
} |
|
5081 |
// Report error |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
5082 |
throwIllegalSignature("Method", name, signature, CHECK_0); |
1 | 5083 |
return 0; |
5084 |
} |
|
5085 |
||
34666 | 5086 |
int ClassFileParser::static_field_size() const { |
5087 |
assert(_field_info != NULL, "invariant"); |
|
5088 |
return _field_info->static_field_size; |
|
5089 |
} |
|
5090 |
||
5091 |
int ClassFileParser::total_oop_map_count() const { |
|
5092 |
assert(_field_info != NULL, "invariant"); |
|
5093 |
return _field_info->total_oop_map_count; |
|
5094 |
} |
|
5095 |
||
5096 |
jint ClassFileParser::layout_size() const { |
|
5097 |
assert(_field_info != NULL, "invariant"); |
|
5098 |
return _field_info->instance_size; |
|
5099 |
} |
|
5100 |
||
5101 |
static void check_methods_for_intrinsics(const InstanceKlass* ik, |
|
5102 |
const Array<Method*>* methods) { |
|
5103 |
assert(ik != NULL, "invariant"); |
|
5104 |
assert(methods != NULL, "invariant"); |
|
5105 |
||
5106 |
// Set up Method*::intrinsic_id as soon as we know the names of methods. |
|
5107 |
// (We used to do this lazily, but now we query it in Rewriter, |
|
5108 |
// which is eagerly done for every method, so we might as well do it now, |
|
5109 |
// when everything is fresh in memory.) |
|
5110 |
const vmSymbols::SID klass_id = Method::klass_id_for_intrinsics(ik); |
|
5111 |
||
5112 |
if (klass_id != vmSymbols::NO_SID) { |
|
5113 |
for (int j = 0; j < methods->length(); ++j) { |
|
5114 |
Method* method = methods->at(j); |
|
5115 |
method->init_intrinsic_id(); |
|
5116 |
||
5117 |
if (CheckIntrinsics) { |
|
5118 |
// Check if an intrinsic is defined for method 'method', |
|
5119 |
// but the method is not annotated with @HotSpotIntrinsicCandidate. |
|
5120 |
if (method->intrinsic_id() != vmIntrinsics::_none && |
|
5121 |
!method->intrinsic_candidate()) { |
|
5122 |
tty->print("Compiler intrinsic is defined for method [%s], " |
|
5123 |
"but the method is not annotated with @HotSpotIntrinsicCandidate.%s", |
|
5124 |
method->name_and_sig_as_C_string(), |
|
5125 |
NOT_DEBUG(" Method will not be inlined.") DEBUG_ONLY(" Exiting.") |
|
5126 |
); |
|
5127 |
tty->cr(); |
|
5128 |
DEBUG_ONLY(vm_exit(1)); |
|
5129 |
} |
|
5130 |
// Check is the method 'method' is annotated with @HotSpotIntrinsicCandidate, |
|
5131 |
// but there is no intrinsic available for it. |
|
5132 |
if (method->intrinsic_candidate() && |
|
5133 |
method->intrinsic_id() == vmIntrinsics::_none) { |
|
5134 |
tty->print("Method [%s] is annotated with @HotSpotIntrinsicCandidate, " |
|
5135 |
"but no compiler intrinsic is defined for the method.%s", |
|
5136 |
method->name_and_sig_as_C_string(), |
|
5137 |
NOT_DEBUG("") DEBUG_ONLY(" Exiting.") |
|
5138 |
); |
|
5139 |
tty->cr(); |
|
5140 |
DEBUG_ONLY(vm_exit(1)); |
|
5141 |
} |
|
1 | 5142 |
} |
34666 | 5143 |
} // end for |
5144 |
||
5145 |
#ifdef ASSERT |
|
5146 |
if (CheckIntrinsics) { |
|
5147 |
// Check for orphan methods in the current class. A method m |
|
5148 |
// of a class C is orphan if an intrinsic is defined for method m, |
|
5149 |
// but class C does not declare m. |
|
5150 |
// The check is potentially expensive, therefore it is available |
|
5151 |
// only in debug builds. |
|
5152 |
||
5153 |
for (int id = vmIntrinsics::FIRST_ID; id < (int)vmIntrinsics::ID_LIMIT; ++id) { |
|
5154 |
if (vmIntrinsics::_compiledLambdaForm == id) { |
|
5155 |
// The _compiledLamdbdaForm intrinsic is a special marker for bytecode |
|
5156 |
// generated for the JVM from a LambdaForm and therefore no method |
|
5157 |
// is defined for it. |
|
5158 |
continue; |
|
5159 |
} |
|
5160 |
||
5161 |
if (vmIntrinsics::class_for(vmIntrinsics::ID_from(id)) == klass_id) { |
|
5162 |
// Check if the current class contains a method with the same |
|
5163 |
// name, flags, signature. |
|
5164 |
bool match = false; |
|
5165 |
for (int j = 0; j < methods->length(); ++j) { |
|
5166 |
const Method* method = methods->at(j); |
|
5167 |
if (method->intrinsic_id() == id) { |
|
5168 |
match = true; |
|
5169 |
break; |
|
5170 |
} |
|
5171 |
} |
|
5172 |
||
5173 |
if (!match) { |
|
5174 |
char buf[1000]; |
|
5175 |
tty->print("Compiler intrinsic is defined for method [%s], " |
|
5176 |
"but the method is not available in class [%s].%s", |
|
5177 |
vmIntrinsics::short_name_as_C_string(vmIntrinsics::ID_from(id), |
|
5178 |
buf, sizeof(buf)), |
|
5179 |
ik->name()->as_C_string(), |
|
5180 |
NOT_DEBUG("") DEBUG_ONLY(" Exiting.") |
|
5181 |
); |
|
5182 |
tty->cr(); |
|
5183 |
DEBUG_ONLY(vm_exit(1)); |
|
5184 |
} |
|
5185 |
} |
|
5186 |
} // end for |
|
5187 |
} // CheckIntrinsics |
|
5188 |
#endif // ASSERT |
|
5189 |
} |
|
5190 |
} |
|
5191 |
||
5192 |
InstanceKlass* ClassFileParser::create_instance_klass(TRAPS) { |
|
5193 |
if (_klass != NULL) { |
|
5194 |
return _klass; |
|
5195 |
} |
|
5196 |
||
5197 |
InstanceKlass* const ik = |
|
5198 |
InstanceKlass::allocate_instance_klass(*this, CHECK_NULL); |
|
5199 |
||
5200 |
fill_instance_klass(ik, CHECK_NULL); |
|
5201 |
||
5202 |
assert(_klass == ik, "invariant"); |
|
5203 |
||
5204 |
return ik; |
|
5205 |
} |
|
5206 |
||
5207 |
void ClassFileParser::fill_instance_klass(InstanceKlass* ik, TRAPS) { |
|
5208 |
assert(ik != NULL, "invariant"); |
|
5209 |
||
5210 |
set_klass_to_deallocate(ik); |
|
5211 |
||
5212 |
assert(_field_info != NULL, "invariant"); |
|
5213 |
assert(ik->static_field_size() == _field_info->static_field_size, "sanity"); |
|
5214 |
assert(ik->nonstatic_oop_map_count() == _field_info->total_oop_map_count, |
|
5215 |
"sanity"); |
|
5216 |
||
5217 |
assert(ik->is_instance_klass(), "sanity"); |
|
5218 |
assert(ik->size_helper() == _field_info->instance_size, "sanity"); |
|
5219 |
||
5220 |
// Fill in information already parsed |
|
5221 |
ik->set_should_verify_class(_need_verify); |
|
5222 |
||
5223 |
// Not yet: supers are done below to support the new subtype-checking fields |
|
5224 |
ik->set_class_loader_data(_loader_data); |
|
5225 |
ik->set_nonstatic_field_size(_field_info->nonstatic_field_size); |
|
5226 |
ik->set_has_nonstatic_fields(_field_info->has_nonstatic_fields); |
|
5227 |
assert(_fac != NULL, "invariant"); |
|
5228 |
ik->set_static_oop_field_count(_fac->count[STATIC_OOP]); |
|
5229 |
||
5230 |
// this transfers ownership of a lot of arrays from |
|
5231 |
// the parser onto the InstanceKlass* |
|
5232 |
apply_parsed_class_metadata(ik, _java_fields_count, CHECK); |
|
5233 |
||
5234 |
// note that is not safe to use the fields in the parser from this point on |
|
5235 |
assert(NULL == _cp, "invariant"); |
|
5236 |
assert(NULL == _fields, "invariant"); |
|
5237 |
assert(NULL == _methods, "invariant"); |
|
5238 |
assert(NULL == _inner_classes, "invariant"); |
|
5239 |
assert(NULL == _local_interfaces, "invariant"); |
|
5240 |
assert(NULL == _transitive_interfaces, "invariant"); |
|
5241 |
assert(NULL == _combined_annotations, "invariant"); |
|
5242 |
||
5243 |
if (_has_final_method) { |
|
5244 |
ik->set_has_final_method(); |
|
5245 |
} |
|
5246 |
||
5247 |
ik->copy_method_ordering(_method_ordering, CHECK); |
|
5248 |
// The InstanceKlass::_methods_jmethod_ids cache |
|
5249 |
// is managed on the assumption that the initial cache |
|
5250 |
// size is equal to the number of methods in the class. If |
|
5251 |
// that changes, then InstanceKlass::idnum_can_increment() |
|
5252 |
// has to be changed accordingly. |
|
5253 |
ik->set_initial_method_idnum(ik->methods()->length()); |
|
5254 |
||
5255 |
ik->set_name(_class_name); |
|
5256 |
||
5257 |
if (is_anonymous()) { |
|
5258 |
// I am well known to myself |
|
5259 |
ik->constants()->klass_at_put(_this_class_index, ik); // eagerly resolve |
|
5260 |
} |
|
5261 |
||
5262 |
ik->set_minor_version(_minor_version); |
|
5263 |
ik->set_major_version(_major_version); |
|
5264 |
ik->set_has_default_methods(_has_default_methods); |
|
5265 |
ik->set_declares_default_methods(_declares_default_methods); |
|
5266 |
||
5267 |
if (_host_klass != NULL) { |
|
5268 |
assert (ik->is_anonymous(), "should be the same"); |
|
5269 |
ik->set_host_klass(_host_klass); |
|
5270 |
} |
|
5271 |
||
5272 |
const Array<Method*>* const methods = ik->methods(); |
|
5273 |
assert(methods != NULL, "invariant"); |
|
5274 |
const int methods_len = methods->length(); |
|
5275 |
||
5276 |
check_methods_for_intrinsics(ik, methods); |
|
5277 |
||
5278 |
// Fill in field values obtained by parse_classfile_attributes |
|
5279 |
if (_parsed_annotations->has_any_annotations()) { |
|
5280 |
_parsed_annotations->apply_to(ik); |
|
5281 |
} |
|
5282 |
||
5283 |
apply_parsed_class_attributes(ik); |
|
5284 |
||
5285 |
// Miranda methods |
|
5286 |
if ((_num_miranda_methods > 0) || |
|
5287 |
// if this class introduced new miranda methods or |
|
5288 |
(_super_klass != NULL && _super_klass->has_miranda_methods()) |
|
5289 |
// super class exists and this class inherited miranda methods |
|
5290 |
) { |
|
5291 |
ik->set_has_miranda_methods(); // then set a flag |
|
5292 |
} |
|
5293 |
||
5294 |
// Fill in information needed to compute superclasses. |
|
5295 |
ik->initialize_supers(const_cast<InstanceKlass*>(_super_klass), CHECK); |
|
5296 |
||
5297 |
// Initialize itable offset tables |
|
5298 |
klassItable::setup_itable_offset_table(ik); |
|
5299 |
||
5300 |
// Compute transitive closure of interfaces this class implements |
|
5301 |
// Do final class setup |
|
5302 |
fill_oop_maps(ik, |
|
5303 |
_field_info->nonstatic_oop_map_count, |
|
5304 |
_field_info->nonstatic_oop_offsets, |
|
5305 |
_field_info->nonstatic_oop_counts); |
|
5306 |
||
5307 |
// Fill in has_finalizer, has_vanilla_constructor, and layout_helper |
|
5308 |
set_precomputed_flags(ik); |
|
5309 |
||
5310 |
// check if this class can access its super class |
|
5311 |
check_super_class_access(ik, CHECK); |
|
5312 |
||
5313 |
// check if this class can access its superinterfaces |
|
5314 |
check_super_interface_access(ik, CHECK); |
|
5315 |
||
5316 |
// check if this class overrides any final method |
|
5317 |
check_final_method_override(ik, CHECK); |
|
5318 |
||
5319 |
// check that if this class is an interface then it doesn't have static methods |
|
5320 |
if (ik->is_interface()) { |
|
5321 |
/* An interface in a JAVA 8 classfile can be static */ |
|
5322 |
if (_major_version < JAVA_8_VERSION) { |
|
5323 |
check_illegal_static_method(ik, CHECK); |
|
1 | 5324 |
} |
5325 |
} |
|
34666 | 5326 |
|
5327 |
// Allocate mirror and initialize static fields |
|
5328 |
// The create_mirror() call will also call compute_modifiers() |
|
5329 |
java_lang_Class::create_mirror(ik, |
|
5330 |
_loader_data->class_loader(), |
|
5331 |
_protection_domain, |
|
5332 |
CHECK); |
|
5333 |
||
5334 |
assert(_all_mirandas != NULL, "invariant"); |
|
5335 |
||
5336 |
// Generate any default methods - default methods are interface methods |
|
5337 |
// that have a default implementation. This is new with Lambda project. |
|
5338 |
if (_has_default_methods ) { |
|
5339 |
DefaultMethods::generate_default_methods(ik, |
|
5340 |
_all_mirandas, |
|
5341 |
CHECK); |
|
5342 |
} |
|
5343 |
||
5344 |
// Update the loader_data graph. |
|
5345 |
record_defined_class_dependencies(ik, CHECK); |
|
5346 |
||
5347 |
ClassLoadingService::notify_class_loaded(ik, false /* not shared class */); |
|
5348 |
||
5349 |
if (!is_internal()) { |
|
5350 |
if (TraceClassLoading) { |
|
5351 |
ResourceMark rm; |
|
5352 |
// print in a single call to reduce interleaving of output |
|
5353 |
if (_stream->source() != NULL) { |
|
5354 |
tty->print("[Loaded %s from %s]\n", |
|
5355 |
ik->external_name(), |
|
5356 |
_stream->source()); |
|
5357 |
} else if (_loader_data->class_loader() == NULL) { |
|
5358 |
const Klass* const caller = |
|
5359 |
THREAD->is_Java_thread() |
|
5360 |
? ((JavaThread*)THREAD)->security_get_caller_class(1) |
|
5361 |
: NULL; |
|
5362 |
// caller can be NULL, for example, during a JVMTI VM_Init hook |
|
5363 |
if (caller != NULL) { |
|
5364 |
tty->print("[Loaded %s by instance of %s]\n", |
|
5365 |
ik->external_name(), |
|
5366 |
caller->external_name()); |
|
5367 |
} else { |
|
5368 |
tty->print("[Loaded %s]\n", ik->external_name()); |
|
1 | 5369 |
} |
34666 | 5370 |
} else { |
5371 |
tty->print("[Loaded %s from %s]\n", ik->external_name(), |
|
5372 |
_loader_data->class_loader()->klass()->external_name()); |
|
1 | 5373 |
} |
34666 | 5374 |
} |
5375 |
||
35219
b9ef87beb87c
8144874: Reimplement TraceClassResolution with Unified Logging.
mockner
parents:
35071
diff
changeset
|
5376 |
if (log_is_enabled(Info, classresolve)) { |
34666 | 5377 |
ResourceMark rm; |
5378 |
// print out the superclass. |
|
5379 |
const char * from = ik->external_name(); |
|
5380 |
if (ik->java_super() != NULL) { |
|
35219
b9ef87beb87c
8144874: Reimplement TraceClassResolution with Unified Logging.
mockner
parents:
35071
diff
changeset
|
5381 |
log_info(classresolve)("%s %s (super)", |
34666 | 5382 |
from, |
5383 |
ik->java_super()->external_name()); |
|
1 | 5384 |
} |
34666 | 5385 |
// print out each of the interface classes referred to by this class. |
5386 |
const Array<Klass*>* const local_interfaces = ik->local_interfaces(); |
|
5387 |
if (local_interfaces != NULL) { |
|
5388 |
const int length = local_interfaces->length(); |
|
5389 |
for (int i = 0; i < length; i++) { |
|
5390 |
const Klass* const k = local_interfaces->at(i); |
|
5391 |
const char * to = k->external_name(); |
|
35219
b9ef87beb87c
8144874: Reimplement TraceClassResolution with Unified Logging.
mockner
parents:
35071
diff
changeset
|
5392 |
log_info(classresolve)("%s %s (interface)", from, to); |
1 | 5393 |
} |
5394 |
} |
|
5395 |
} |
|
5396 |
} |
|
34666 | 5397 |
|
5398 |
TRACE_INIT_ID(ik); |
|
5399 |
||
5400 |
// If we reach here, all is well. |
|
5401 |
// Now remove the InstanceKlass* from the _klass_to_deallocate field |
|
5402 |
// in order for it to not be destroyed in the ClassFileParser destructor. |
|
5403 |
set_klass_to_deallocate(NULL); |
|
5404 |
||
5405 |
// it's official |
|
5406 |
set_klass(ik); |
|
5407 |
||
5408 |
debug_only(ik->verify();) |
|
5409 |
} |
|
5410 |
||
5411 |
ClassFileParser::ClassFileParser(ClassFileStream* stream, |
|
5412 |
Symbol* name, |
|
5413 |
ClassLoaderData* loader_data, |
|
5414 |
Handle protection_domain, |
|
5415 |
TempNewSymbol* parsed_name, |
|
5416 |
const Klass* host_klass, |
|
5417 |
GrowableArray<Handle>* cp_patches, |
|
5418 |
Publicity pub_level, |
|
5419 |
TRAPS) : |
|
5420 |
_stream(stream), |
|
5421 |
_requested_name(name), |
|
5422 |
_loader_data(loader_data), |
|
5423 |
_host_klass(host_klass), |
|
5424 |
_cp_patches(cp_patches), |
|
5425 |
_parsed_name(parsed_name), |
|
5426 |
_super_klass(), |
|
5427 |
_cp(NULL), |
|
5428 |
_fields(NULL), |
|
5429 |
_methods(NULL), |
|
5430 |
_inner_classes(NULL), |
|
5431 |
_local_interfaces(NULL), |
|
5432 |
_transitive_interfaces(NULL), |
|
5433 |
_combined_annotations(NULL), |
|
5434 |
_annotations(NULL), |
|
5435 |
_type_annotations(NULL), |
|
5436 |
_fields_annotations(NULL), |
|
5437 |
_fields_type_annotations(NULL), |
|
5438 |
_klass(NULL), |
|
5439 |
_klass_to_deallocate(NULL), |
|
5440 |
_parsed_annotations(NULL), |
|
5441 |
_fac(NULL), |
|
5442 |
_field_info(NULL), |
|
5443 |
_method_ordering(NULL), |
|
5444 |
_all_mirandas(NULL), |
|
5445 |
_vtable_size(0), |
|
5446 |
_itable_size(0), |
|
5447 |
_num_miranda_methods(0), |
|
5448 |
_rt(REF_NONE), |
|
5449 |
_protection_domain(protection_domain), |
|
5450 |
_access_flags(), |
|
5451 |
_pub_level(pub_level), |
|
5452 |
_synthetic_flag(false), |
|
5453 |
_sde_length(false), |
|
5454 |
_sde_buffer(NULL), |
|
5455 |
_sourcefile_index(0), |
|
5456 |
_generic_signature_index(0), |
|
5457 |
_major_version(0), |
|
5458 |
_minor_version(0), |
|
5459 |
_this_class_index(0), |
|
5460 |
_super_class_index(0), |
|
5461 |
_itfs_len(0), |
|
5462 |
_java_fields_count(0), |
|
5463 |
_need_verify(false), |
|
5464 |
_relax_verify(false), |
|
5465 |
_has_default_methods(false), |
|
5466 |
_declares_default_methods(false), |
|
5467 |
_has_final_method(false), |
|
5468 |
_has_finalizer(false), |
|
5469 |
_has_empty_finalizer(false), |
|
5470 |
_has_vanilla_constructor(false), |
|
5471 |
_max_bootstrap_specifier_index(-1) { |
|
5472 |
||
5473 |
_class_name = name != NULL ? name : vmSymbols::unknown_class_name(); |
|
5474 |
||
5475 |
assert(THREAD->is_Java_thread(), "invariant"); |
|
5476 |
assert(_loader_data != NULL, "invariant"); |
|
5477 |
assert(stream != NULL, "invariant"); |
|
5478 |
assert(_stream != NULL, "invariant"); |
|
5479 |
assert(_stream->buffer() == _stream->current(), "invariant"); |
|
5480 |
assert(_class_name != NULL, "invariant"); |
|
5481 |
assert(0 == _access_flags.as_int(), "invariant"); |
|
5482 |
||
5483 |
// Figure out whether we can skip format checking (matching classic VM behavior) |
|
5484 |
if (DumpSharedSpaces) { |
|
5485 |
// verify == true means it's a 'remote' class (i.e., non-boot class) |
|
5486 |
// Verification decision is based on BytecodeVerificationRemote flag |
|
5487 |
// for those classes. |
|
5488 |
_need_verify = (stream->need_verify()) ? BytecodeVerificationRemote : |
|
5489 |
BytecodeVerificationLocal; |
|
5490 |
} |
|
5491 |
else { |
|
5492 |
_need_verify = Verifier::should_verify_for(_loader_data->class_loader(), |
|
5493 |
stream->need_verify()); |
|
5494 |
} |
|
5495 |
||
5496 |
// synch back verification state to stream |
|
5497 |
stream->set_verify(_need_verify); |
|
5498 |
||
5499 |
// Check if verification needs to be relaxed for this class file |
|
5500 |
// Do not restrict it to jdk1.0 or jdk1.1 to maintain backward compatibility (4982376) |
|
5501 |
_relax_verify = Verifier::relax_verify_for(_loader_data->class_loader()); |
|
5502 |
||
5503 |
parse_stream(stream, CHECK); |
|
5504 |
||
5505 |
post_process_parsed_stream(stream, _cp, CHECK); |
|
5506 |
} |
|
5507 |
||
5508 |
void ClassFileParser::clear_class_metadata() { |
|
5509 |
// metadata created before the instance klass is created. Must be |
|
5510 |
// deallocated if classfile parsing returns an error. |
|
5511 |
_cp = NULL; |
|
5512 |
_fields = NULL; |
|
5513 |
_methods = NULL; |
|
5514 |
_inner_classes = NULL; |
|
5515 |
_local_interfaces = NULL; |
|
5516 |
_transitive_interfaces = NULL; |
|
5517 |
_combined_annotations = NULL; |
|
5518 |
_annotations = _type_annotations = NULL; |
|
5519 |
_fields_annotations = _fields_type_annotations = NULL; |
|
5520 |
} |
|
5521 |
||
5522 |
// Destructor to clean up |
|
5523 |
ClassFileParser::~ClassFileParser() { |
|
5524 |
if (_cp != NULL) { |
|
5525 |
MetadataFactory::free_metadata(_loader_data, _cp); |
|
5526 |
} |
|
5527 |
if (_fields != NULL) { |
|
5528 |
MetadataFactory::free_array<u2>(_loader_data, _fields); |
|
5529 |
} |
|
5530 |
||
5531 |
if (_methods != NULL) { |
|
5532 |
// Free methods |
|
5533 |
InstanceKlass::deallocate_methods(_loader_data, _methods); |
|
5534 |
} |
|
5535 |
||
5536 |
// beware of the Universe::empty_blah_array!! |
|
5537 |
if (_inner_classes != NULL && _inner_classes != Universe::the_empty_short_array()) { |
|
5538 |
MetadataFactory::free_array<u2>(_loader_data, _inner_classes); |
|
5539 |
} |
|
5540 |
||
5541 |
// Free interfaces |
|
5542 |
InstanceKlass::deallocate_interfaces(_loader_data, _super_klass, |
|
5543 |
_local_interfaces, _transitive_interfaces); |
|
5544 |
||
5545 |
if (_combined_annotations != NULL) { |
|
5546 |
// After all annotations arrays have been created, they are installed into the |
|
5547 |
// Annotations object that will be assigned to the InstanceKlass being created. |
|
5548 |
||
5549 |
// Deallocate the Annotations object and the installed annotations arrays. |
|
5550 |
_combined_annotations->deallocate_contents(_loader_data); |
|
5551 |
||
5552 |
// If the _combined_annotations pointer is non-NULL, |
|
5553 |
// then the other annotations fields should have been cleared. |
|
5554 |
assert(_annotations == NULL, "Should have been cleared"); |
|
5555 |
assert(_type_annotations == NULL, "Should have been cleared"); |
|
5556 |
assert(_fields_annotations == NULL, "Should have been cleared"); |
|
5557 |
assert(_fields_type_annotations == NULL, "Should have been cleared"); |
|
5558 |
} else { |
|
5559 |
// If the annotations arrays were not installed into the Annotations object, |
|
5560 |
// then they have to be deallocated explicitly. |
|
5561 |
MetadataFactory::free_array<u1>(_loader_data, _annotations); |
|
5562 |
MetadataFactory::free_array<u1>(_loader_data, _type_annotations); |
|
5563 |
Annotations::free_contents(_loader_data, _fields_annotations); |
|
5564 |
Annotations::free_contents(_loader_data, _fields_type_annotations); |
|
5565 |
} |
|
5566 |
||
5567 |
clear_class_metadata(); |
|
5568 |
||
5569 |
// deallocate the klass if already created. Don't directly deallocate, but add |
|
5570 |
// to the deallocate list so that the klass is removed from the CLD::_klasses list |
|
5571 |
// at a safepoint. |
|
5572 |
if (_klass_to_deallocate != NULL) { |
|
5573 |
_loader_data->add_to_deallocate_list(_klass_to_deallocate); |
|
5574 |
} |
|
1 | 5575 |
} |
5576 |
||
34666 | 5577 |
void ClassFileParser::parse_stream(const ClassFileStream* const stream, |
5578 |
TRAPS) { |
|
5579 |
||
5580 |
assert(stream != NULL, "invariant"); |
|
5581 |
assert(_class_name != NULL, "invariant"); |
|
5582 |
||
5583 |
// BEGIN STREAM PARSING |
|
5584 |
stream->guarantee_more(8, CHECK); // magic, major, minor |
|
5585 |
// Magic value |
|
5586 |
const u4 magic = stream->get_u4_fast(); |
|
5587 |
guarantee_property(magic == JAVA_CLASSFILE_MAGIC, |
|
5588 |
"Incompatible magic value %u in class file %s", |
|
5589 |
magic, CHECK); |
|
5590 |
||
5591 |
// Version numbers |
|
5592 |
_minor_version = stream->get_u2_fast(); |
|
5593 |
_major_version = stream->get_u2_fast(); |
|
5594 |
||
5595 |
if (DumpSharedSpaces && _major_version < JAVA_1_5_VERSION) { |
|
5596 |
ResourceMark rm; |
|
5597 |
warning("Pre JDK 1.5 class not supported by CDS: %u.%u %s", |
|
5598 |
_major_version, _minor_version, _class_name->as_C_string()); |
|
5599 |
Exceptions::fthrow( |
|
5600 |
THREAD_AND_LOCATION, |
|
5601 |
vmSymbols::java_lang_UnsupportedClassVersionError(), |
|
5602 |
"Unsupported major.minor version for dump time %u.%u", |
|
5603 |
_major_version, |
|
5604 |
_minor_version); |
|
5605 |
} |
|
5606 |
||
5607 |
// Check version numbers - we check this even with verifier off |
|
5608 |
if (!is_supported_version(_major_version, _minor_version)) { |
|
5609 |
ResourceMark rm(THREAD); |
|
5610 |
Exceptions::fthrow( |
|
5611 |
THREAD_AND_LOCATION, |
|
5612 |
vmSymbols::java_lang_UnsupportedClassVersionError(), |
|
5613 |
"%s has been compiled by a more recent version of the Java Runtime (class file version %u.%u), " |
|
5614 |
"this version of the Java Runtime only recognizes class file versions up to %u.%u", |
|
5615 |
_class_name->as_C_string(), |
|
5616 |
_major_version, |
|
5617 |
_minor_version, |
|
5618 |
JAVA_MAX_SUPPORTED_VERSION, |
|
5619 |
JAVA_MAX_SUPPORTED_MINOR_VERSION); |
|
5620 |
return; |
|
5621 |
} |
|
5622 |
||
5623 |
stream->guarantee_more(3, CHECK); // length, first cp tag |
|
5624 |
const u2 cp_size = stream->get_u2_fast(); |
|
5625 |
||
5626 |
guarantee_property( |
|
5627 |
cp_size >= 1, "Illegal constant pool size %u in class file %s", |
|
5628 |
cp_size, CHECK); |
|
5629 |
||
5630 |
_cp = ConstantPool::allocate(_loader_data, |
|
5631 |
cp_size, |
|
5632 |
CHECK); |
|
5633 |
||
5634 |
ConstantPool* const cp = _cp; |
|
5635 |
||
5636 |
parse_constant_pool(stream, cp, cp_size, CHECK); |
|
5637 |
||
5638 |
assert(cp_size == (const u2)cp->length(), "invariant"); |
|
5639 |
||
5640 |
// ACCESS FLAGS |
|
5641 |
stream->guarantee_more(8, CHECK); // flags, this_class, super_class, infs_len |
|
5642 |
||
5643 |
// Access flags |
|
5644 |
jint flags = stream->get_u2_fast() & JVM_RECOGNIZED_CLASS_MODIFIERS; |
|
5645 |
||
5646 |
if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) { |
|
5647 |
// Set abstract bit for old class files for backward compatibility |
|
5648 |
flags |= JVM_ACC_ABSTRACT; |
|
5649 |
} |
|
5650 |
||
5651 |
_access_flags.set_flags(flags); |
|
5652 |
||
5653 |
verify_legal_class_modifiers((jint)_access_flags.as_int(), CHECK); |
|
5654 |
||
5655 |
// This class and superclass |
|
5656 |
_this_class_index = stream->get_u2_fast(); |
|
5657 |
check_property( |
|
5658 |
valid_cp_range(_this_class_index, cp_size) && |
|
5659 |
cp->tag_at(_this_class_index).is_unresolved_klass(), |
|
5660 |
"Invalid this class index %u in constant pool in class file %s", |
|
5661 |
_this_class_index, CHECK); |
|
5662 |
||
5663 |
Symbol* const class_name_in_cp = cp->klass_name_at(_this_class_index); |
|
5664 |
assert(class_name_in_cp != NULL, "class_name can't be null"); |
|
5665 |
||
5666 |
if (_parsed_name != NULL) { |
|
5667 |
// It's important to set parsed_name *before* resolving the super class. |
|
5668 |
// (it's used for cleanup by the caller if parsing fails) |
|
5669 |
*_parsed_name = class_name_in_cp; |
|
5670 |
// parsed_name is returned and can be used if there's an error, so add to |
|
5671 |
// its reference count. Caller will decrement the refcount. |
|
5672 |
(*_parsed_name)->increment_refcount(); |
|
5673 |
} |
|
5674 |
||
5675 |
// Update _class_name which could be null previously |
|
5676 |
// to reflect the name in the constant pool |
|
5677 |
_class_name = class_name_in_cp; |
|
5678 |
||
5679 |
// Don't need to check whether this class name is legal or not. |
|
5680 |
// It has been checked when constant pool is parsed. |
|
5681 |
// However, make sure it is not an array type. |
|
5682 |
if (_need_verify) { |
|
5683 |
guarantee_property(_class_name->byte_at(0) != JVM_SIGNATURE_ARRAY, |
|
5684 |
"Bad class name in class file %s", |
|
5685 |
CHECK); |
|
5686 |
} |
|
5687 |
||
5688 |
// Checks if name in class file matches requested name |
|
5689 |
if (_requested_name != NULL && _requested_name != _class_name) { |
|
5690 |
ResourceMark rm(THREAD); |
|
5691 |
Exceptions::fthrow( |
|
5692 |
THREAD_AND_LOCATION, |
|
5693 |
vmSymbols::java_lang_NoClassDefFoundError(), |
|
5694 |
"%s (wrong name: %s)", |
|
5695 |
_class_name->as_C_string(), |
|
5696 |
_requested_name != NULL ? _requested_name->as_C_string() : "NoName" |
|
5697 |
); |
|
5698 |
return; |
|
5699 |
} |
|
5700 |
||
5701 |
if (!is_internal()) { |
|
5702 |
if (TraceClassLoadingPreorder) { |
|
5703 |
tty->print("[Loading %s", |
|
5704 |
_class_name->as_klass_external_name()); |
|
5705 |
||
5706 |
if (stream->source() != NULL) { |
|
5707 |
tty->print(" from %s", stream->source()); |
|
5708 |
} |
|
5709 |
tty->print_cr("]"); |
|
5710 |
} |
|
5711 |
#if INCLUDE_CDS |
|
5712 |
if (DumpLoadedClassList != NULL && stream->source() != NULL && classlist_file->is_open()) { |
|
5713 |
// Only dump the classes that can be stored into CDS archive |
|
5714 |
if (SystemDictionaryShared::is_sharing_possible(_loader_data)) { |
|
5715 |
ResourceMark rm(THREAD); |
|
5716 |
classlist_file->print_cr("%s", _class_name->as_C_string()); |
|
5717 |
classlist_file->flush(); |
|
5718 |
} |
|
5719 |
} |
|
5720 |
#endif |
|
5721 |
} |
|
5722 |
||
5723 |
// SUPERKLASS |
|
5724 |
_super_class_index = stream->get_u2_fast(); |
|
5725 |
_super_klass = parse_super_class(cp, |
|
5726 |
_super_class_index, |
|
5727 |
_need_verify, |
|
5728 |
CHECK); |
|
5729 |
||
5730 |
// Interfaces |
|
5731 |
_itfs_len = stream->get_u2_fast(); |
|
5732 |
parse_interfaces(stream, |
|
5733 |
_itfs_len, |
|
5734 |
cp, |
|
5735 |
&_has_default_methods, |
|
5736 |
CHECK); |
|
5737 |
||
5738 |
assert(_local_interfaces != NULL, "invariant"); |
|
5739 |
||
5740 |
// Fields (offsets are filled in later) |
|
5741 |
_fac = new FieldAllocationCount(); |
|
5742 |
parse_fields(stream, |
|
5743 |
_access_flags.is_interface(), |
|
5744 |
_fac, |
|
5745 |
cp, |
|
5746 |
cp_size, |
|
5747 |
&_java_fields_count, |
|
5748 |
CHECK); |
|
5749 |
||
5750 |
assert(_fields != NULL, "invariant"); |
|
5751 |
||
5752 |
// Methods |
|
5753 |
AccessFlags promoted_flags; |
|
5754 |
parse_methods(stream, |
|
5755 |
_access_flags.is_interface(), |
|
5756 |
&promoted_flags, |
|
5757 |
&_has_final_method, |
|
5758 |
&_declares_default_methods, |
|
5759 |
CHECK); |
|
5760 |
||
5761 |
assert(_methods != NULL, "invariant"); |
|
5762 |
||
5763 |
// promote flags from parse_methods() to the klass' flags |
|
5764 |
_access_flags.add_promoted_flags(promoted_flags.as_int()); |
|
5765 |
||
5766 |
if (_declares_default_methods) { |
|
5767 |
_has_default_methods = true; |
|
5768 |
} |
|
5769 |
||
5770 |
// Additional attributes/annotations |
|
5771 |
_parsed_annotations = new ClassAnnotationCollector(); |
|
5772 |
parse_classfile_attributes(stream, cp, _parsed_annotations, CHECK); |
|
5773 |
||
5774 |
assert(_inner_classes != NULL, "invariant"); |
|
5775 |
||
5776 |
// Finalize the Annotations metadata object, |
|
5777 |
// now that all annotation arrays have been created. |
|
5778 |
create_combined_annotations(CHECK); |
|
5779 |
||
5780 |
// Make sure this is the end of class file stream |
|
5781 |
guarantee_property(stream->at_eos(), |
|
5782 |
"Extra bytes at the end of class file %s", |
|
5783 |
CHECK); |
|
5784 |
||
5785 |
// all bytes in stream read and parsed |
|
5786 |
} |
|
5787 |
||
5788 |
void ClassFileParser::post_process_parsed_stream(const ClassFileStream* const stream, |
|
5789 |
ConstantPool* cp, |
|
1 | 5790 |
TRAPS) { |
34666 | 5791 |
assert(stream != NULL, "invariant"); |
5792 |
assert(stream->at_eos(), "invariant"); |
|
5793 |
assert(cp != NULL, "invariant"); |
|
5794 |
assert(_loader_data != NULL, "invariant"); |
|
5795 |
||
5796 |
// We check super class after class file is parsed and format is checked |
|
5797 |
if (_super_class_index > 0 && NULL ==_super_klass) { |
|
5798 |
Symbol* const super_class_name = cp->klass_name_at(_super_class_index); |
|
5799 |
if (_access_flags.is_interface()) { |
|
5800 |
// Before attempting to resolve the superclass, check for class format |
|
5801 |
// errors not checked yet. |
|
5802 |
guarantee_property(super_class_name == vmSymbols::java_lang_Object(), |
|
5803 |
"Interfaces must have java.lang.Object as superclass in class file %s", |
|
5804 |
CHECK); |
|
1 | 5805 |
} |
34666 | 5806 |
_super_klass = (const InstanceKlass*) |
5807 |
SystemDictionary::resolve_super_or_fail(_class_name, |
|
5808 |
super_class_name, |
|
5809 |
_loader_data->class_loader(), |
|
5810 |
_protection_domain, |
|
5811 |
true, |
|
5812 |
CHECK); |
|
5813 |
} |
|
5814 |
||
5815 |
if (_super_klass != NULL) { |
|
5816 |
if (_super_klass->has_default_methods()) { |
|
5817 |
_has_default_methods = true; |
|
5818 |
} |
|
5819 |
||
5820 |
if (_super_klass->is_interface()) { |
|
5821 |
ResourceMark rm(THREAD); |
|
5822 |
Exceptions::fthrow( |
|
5823 |
THREAD_AND_LOCATION, |
|
5824 |
vmSymbols::java_lang_IncompatibleClassChangeError(), |
|
5825 |
"class %s has interface %s as super class", |
|
5826 |
_class_name->as_klass_external_name(), |
|
5827 |
_super_klass->external_name() |
|
5828 |
); |
|
5829 |
return; |
|
5830 |
} |
|
5831 |
// Make sure super class is not final |
|
5832 |
if (_super_klass->is_final()) { |
|
5833 |
THROW_MSG(vmSymbols::java_lang_VerifyError(), "Cannot inherit from final class"); |
|
1 | 5834 |
} |
5835 |
} |
|
34666 | 5836 |
|
5837 |
// Compute the transitive list of all unique interfaces implemented by this class |
|
5838 |
_transitive_interfaces = |
|
5839 |
compute_transitive_interfaces(_super_klass, |
|
5840 |
_local_interfaces, |
|
5841 |
_loader_data, |
|
5842 |
CHECK); |
|
5843 |
||
5844 |
assert(_transitive_interfaces != NULL, "invariant"); |
|
5845 |
||
5846 |
// sort methods |
|
5847 |
_method_ordering = sort_methods(_methods); |
|
5848 |
||
5849 |
_all_mirandas = new GrowableArray<Method*>(20); |
|
5850 |
||
5851 |
klassVtable::compute_vtable_size_and_num_mirandas(&_vtable_size, |
|
5852 |
&_num_miranda_methods, |
|
5853 |
_all_mirandas, |
|
5854 |
_super_klass, |
|
5855 |
_methods, |
|
5856 |
_access_flags, |
|
5857 |
_loader_data->class_loader(), |
|
5858 |
_class_name, |
|
5859 |
_local_interfaces, |
|
5860 |
CHECK); |
|
5861 |
||
5862 |
// Size of Java itable (in words) |
|
5863 |
_itable_size = _access_flags.is_interface() ? 0 : |
|
5864 |
klassItable::compute_itable_size(_transitive_interfaces); |
|
5865 |
||
5866 |
assert(_fac != NULL, "invariant"); |
|
5867 |
assert(_parsed_annotations != NULL, "invariant"); |
|
5868 |
||
5869 |
_field_info = new FieldLayoutInfo(); |
|
5870 |
layout_fields(cp, _fac, _parsed_annotations, _field_info, CHECK); |
|
5871 |
||
5872 |
// Compute reference typ |
|
5873 |
_rt = (NULL ==_super_klass) ? REF_NONE : _super_klass->reference_type(); |
|
5874 |
||
1 | 5875 |
} |
34666 | 5876 |
|
5877 |
void ClassFileParser::set_klass(InstanceKlass* klass) { |
|
5878 |
||
5879 |
#ifdef ASSERT |
|
5880 |
if (klass != NULL) { |
|
5881 |
assert(NULL == _klass, "leaking?"); |
|
5882 |
} |
|
5883 |
#endif |
|
5884 |
||
5885 |
_klass = klass; |
|
5886 |
} |
|
5887 |
||
5888 |
void ClassFileParser::set_klass_to_deallocate(InstanceKlass* klass) { |
|
5889 |
||
5890 |
#ifdef ASSERT |
|
5891 |
if (klass != NULL) { |
|
5892 |
assert(NULL == _klass_to_deallocate, "leaking?"); |
|
5893 |
} |
|
5894 |
#endif |
|
5895 |
||
5896 |
_klass_to_deallocate = klass; |
|
5897 |
} |
|
5898 |
||
5899 |
// Caller responsible for ResourceMark |
|
5900 |
// clone stream with rewound position |
|
5901 |
const ClassFileStream* ClassFileParser::clone_stream() const { |
|
5902 |
assert(_stream != NULL, "invariant"); |
|
5903 |
||
5904 |
return _stream->clone(); |
|
5905 |
} |