author | bobv |
Tue, 10 Apr 2012 13:27:09 -0400 | |
changeset 12371 | e5bda259304d |
parent 12267 | a43041fec343 |
parent 12369 | 48fd3da4025c |
child 12587 | 8f819769ca1b |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 1997, 2012, 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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||
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#include "precompiled.hpp" |
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#include "classfile/classFileParser.hpp" |
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#include "classfile/classLoader.hpp" |
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#include "classfile/javaClasses.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 "memory/allocation.hpp" |
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#include "memory/gcLocker.hpp" |
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#include "memory/oopFactory.hpp" |
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#include "memory/universe.inline.hpp" |
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#include "oops/constantPoolOop.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/klassOop.hpp" |
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#include "oops/klassVtable.hpp" |
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#include "oops/methodOop.hpp" |
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#include "oops/symbol.hpp" |
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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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// 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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#define JAVA_MAX_SUPPORTED_VERSION 51 |
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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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#define JAVA_7_VERSION 51 |
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void ClassFileParser::parse_constant_pool_entries(Handle class_loader, constantPoolHandle cp, int length, TRAPS) { |
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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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ClassFileStream* cfs0 = stream(); |
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ClassFileStream cfs1 = *cfs0; |
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ClassFileStream* cfs = &cfs1; |
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#ifdef ASSERT |
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assert(cfs->allocated_on_stack(),"should be local"); |
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u1* old_current = cfs0->current(); |
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#endif |
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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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unsigned int hashValues[SymbolTable::symbol_alloc_batch_size]; |
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int names_count = 0; |
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// 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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u1 tag = cfs->get_u1_fast(); |
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switch (tag) { |
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case JVM_CONSTANT_Class : |
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{ |
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cfs->guarantee_more(3, CHECK); // name_index, tag/access_flags |
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u2 name_index = cfs->get_u2_fast(); |
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cp->klass_index_at_put(index, name_index); |
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} |
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break; |
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case JVM_CONSTANT_Fieldref : |
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{ |
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cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags |
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u2 class_index = cfs->get_u2_fast(); |
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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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} |
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break; |
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case JVM_CONSTANT_Methodref : |
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{ |
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cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags |
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u2 class_index = cfs->get_u2_fast(); |
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u2 name_and_type_index = cfs->get_u2_fast(); |
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cp->method_at_put(index, class_index, name_and_type_index); |
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} |
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break; |
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case JVM_CONSTANT_InterfaceMethodref : |
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{ |
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cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags |
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u2 class_index = cfs->get_u2_fast(); |
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u2 name_and_type_index = cfs->get_u2_fast(); |
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cp->interface_method_at_put(index, class_index, name_and_type_index); |
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} |
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break; |
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case JVM_CONSTANT_String : |
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{ |
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cfs->guarantee_more(3, CHECK); // string_index, tag/access_flags |
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u2 string_index = cfs->get_u2_fast(); |
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cp->string_index_at_put(index, string_index); |
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} |
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break; |
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case JVM_CONSTANT_MethodHandle : |
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case JVM_CONSTANT_MethodType : |
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if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
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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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} |
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if (!EnableInvokeDynamic) { |
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classfile_parse_error( |
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"This JVM does not support constant tag %u in class file %s", |
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tag, CHECK); |
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} |
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if (tag == JVM_CONSTANT_MethodHandle) { |
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cfs->guarantee_more(4, CHECK); // ref_kind, method_index, tag/access_flags |
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u1 ref_kind = cfs->get_u1_fast(); |
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u2 method_index = cfs->get_u2_fast(); |
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cp->method_handle_index_at_put(index, ref_kind, method_index); |
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} else if (tag == JVM_CONSTANT_MethodType) { |
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cfs->guarantee_more(3, CHECK); // signature_index, tag/access_flags |
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u2 signature_index = cfs->get_u2_fast(); |
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cp->method_type_index_at_put(index, signature_index); |
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} else { |
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ShouldNotReachHere(); |
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} |
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break; |
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case JVM_CONSTANT_InvokeDynamic : |
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{ |
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if (_major_version < Verifier::INVOKEDYNAMIC_MAJOR_VERSION) { |
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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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} |
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if (!EnableInvokeDynamic) { |
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classfile_parse_error( |
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"This JVM does not support constant tag %u in class file %s", |
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tag, CHECK); |
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} |
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cfs->guarantee_more(5, CHECK); // bsm_index, nt, tag/access_flags |
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u2 bootstrap_specifier_index = cfs->get_u2_fast(); |
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u2 name_and_type_index = cfs->get_u2_fast(); |
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if (_max_bootstrap_specifier_index < (int) bootstrap_specifier_index) |
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_max_bootstrap_specifier_index = (int) bootstrap_specifier_index; // collect for later |
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cp->invoke_dynamic_at_put(index, bootstrap_specifier_index, name_and_type_index); |
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} |
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break; |
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case JVM_CONSTANT_Integer : |
196 |
{ |
|
197 |
cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags |
|
198 |
u4 bytes = cfs->get_u4_fast(); |
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199 |
cp->int_at_put(index, (jint) bytes); |
|
200 |
} |
|
201 |
break; |
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202 |
case JVM_CONSTANT_Float : |
|
203 |
{ |
|
204 |
cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags |
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205 |
u4 bytes = cfs->get_u4_fast(); |
|
206 |
cp->float_at_put(index, *(jfloat*)&bytes); |
|
207 |
} |
|
208 |
break; |
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209 |
case JVM_CONSTANT_Long : |
|
210 |
// A mangled type might cause you to overrun allocated memory |
|
211 |
guarantee_property(index+1 < length, |
|
212 |
"Invalid constant pool entry %u in class file %s", |
|
213 |
index, CHECK); |
|
214 |
{ |
|
215 |
cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags |
|
216 |
u8 bytes = cfs->get_u8_fast(); |
|
217 |
cp->long_at_put(index, bytes); |
|
218 |
} |
|
219 |
index++; // Skip entry following eigth-byte constant, see JVM book p. 98 |
|
220 |
break; |
|
221 |
case JVM_CONSTANT_Double : |
|
222 |
// A mangled type might cause you to overrun allocated memory |
|
223 |
guarantee_property(index+1 < length, |
|
224 |
"Invalid constant pool entry %u in class file %s", |
|
225 |
index, CHECK); |
|
226 |
{ |
|
227 |
cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags |
|
228 |
u8 bytes = cfs->get_u8_fast(); |
|
229 |
cp->double_at_put(index, *(jdouble*)&bytes); |
|
230 |
} |
|
231 |
index++; // Skip entry following eigth-byte constant, see JVM book p. 98 |
|
232 |
break; |
|
233 |
case JVM_CONSTANT_NameAndType : |
|
234 |
{ |
|
235 |
cfs->guarantee_more(5, CHECK); // name_index, signature_index, tag/access_flags |
|
236 |
u2 name_index = cfs->get_u2_fast(); |
|
237 |
u2 signature_index = cfs->get_u2_fast(); |
|
238 |
cp->name_and_type_at_put(index, name_index, signature_index); |
|
239 |
} |
|
240 |
break; |
|
241 |
case JVM_CONSTANT_Utf8 : |
|
242 |
{ |
|
243 |
cfs->guarantee_more(2, CHECK); // utf8_length |
|
244 |
u2 utf8_length = cfs->get_u2_fast(); |
|
245 |
u1* utf8_buffer = cfs->get_u1_buffer(); |
|
246 |
assert(utf8_buffer != NULL, "null utf8 buffer"); |
|
247 |
// Got utf8 string, guarantee utf8_length+1 bytes, set stream position forward. |
|
248 |
cfs->guarantee_more(utf8_length+1, CHECK); // utf8 string, tag/access_flags |
|
249 |
cfs->skip_u1_fast(utf8_length); |
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1 | 251 |
// Before storing the symbol, make sure it's legal |
252 |
if (_need_verify) { |
|
253 |
verify_legal_utf8((unsigned char*)utf8_buffer, utf8_length, CHECK); |
|
254 |
} |
|
255 |
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if (EnableInvokeDynamic && has_cp_patch_at(index)) { |
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Handle patch = clear_cp_patch_at(index); |
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guarantee_property(java_lang_String::is_instance(patch()), |
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"Illegal utf8 patch at %d in class file %s", |
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index, CHECK); |
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char* str = java_lang_String::as_utf8_string(patch()); |
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// (could use java_lang_String::as_symbol instead, but might as well batch them) |
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|
263 |
utf8_buffer = (u1*) str; |
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|
264 |
utf8_length = (int) strlen(str); |
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|
265 |
} |
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|
266 |
|
1 | 267 |
unsigned int hash; |
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|
268 |
Symbol* result = SymbolTable::lookup_only((char*)utf8_buffer, utf8_length, hash); |
1 | 269 |
if (result == NULL) { |
270 |
names[names_count] = (char*)utf8_buffer; |
|
271 |
lengths[names_count] = utf8_length; |
|
272 |
indices[names_count] = index; |
|
273 |
hashValues[names_count++] = hash; |
|
274 |
if (names_count == SymbolTable::symbol_alloc_batch_size) { |
|
12263
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|
275 |
SymbolTable::new_symbols(class_loader, cp, names_count, names, lengths, indices, hashValues, CHECK); |
1 | 276 |
names_count = 0; |
277 |
} |
|
278 |
} else { |
|
279 |
cp->symbol_at_put(index, result); |
|
280 |
} |
|
281 |
} |
|
282 |
break; |
|
283 |
default: |
|
284 |
classfile_parse_error( |
|
285 |
"Unknown constant tag %u in class file %s", tag, CHECK); |
|
286 |
break; |
|
287 |
} |
|
288 |
} |
|
289 |
||
290 |
// Allocate the remaining symbols |
|
291 |
if (names_count > 0) { |
|
12263
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|
292 |
SymbolTable::new_symbols(class_loader, cp, names_count, names, lengths, indices, hashValues, CHECK); |
1 | 293 |
} |
294 |
||
295 |
// Copy _current pointer of local copy back to stream(). |
|
296 |
#ifdef ASSERT |
|
297 |
assert(cfs0->current() == old_current, "non-exclusive use of stream()"); |
|
298 |
#endif |
|
299 |
cfs0->set_current(cfs1.current()); |
|
300 |
} |
|
301 |
||
8076
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diff
changeset
|
302 |
// This class unreferences constant pool symbols if an error has occurred |
96d498ec7ae1
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diff
changeset
|
303 |
// while parsing the class before it is assigned into the class. |
96d498ec7ae1
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diff
changeset
|
304 |
// If it gets an error after that it is unloaded and the constant pool will |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
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parents:
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diff
changeset
|
305 |
// be cleaned up then. |
96d498ec7ae1
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diff
changeset
|
306 |
class ConstantPoolCleaner : public StackObj { |
96d498ec7ae1
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parents:
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diff
changeset
|
307 |
constantPoolHandle _cphandle; |
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diff
changeset
|
308 |
bool _in_error; |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
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parents:
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diff
changeset
|
309 |
public: |
96d498ec7ae1
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diff
changeset
|
310 |
ConstantPoolCleaner(constantPoolHandle cp) : _cphandle(cp), _in_error(true) {} |
96d498ec7ae1
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parents:
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diff
changeset
|
311 |
~ConstantPoolCleaner() { |
96d498ec7ae1
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parents:
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diff
changeset
|
312 |
if (_in_error && _cphandle.not_null()) { |
96d498ec7ae1
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parents:
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diff
changeset
|
313 |
_cphandle->unreference_symbols(); |
96d498ec7ae1
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parents:
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diff
changeset
|
314 |
} |
96d498ec7ae1
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parents:
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diff
changeset
|
315 |
} |
96d498ec7ae1
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diff
changeset
|
316 |
void set_in_error(bool clean) { _in_error = clean; } |
96d498ec7ae1
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parents:
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diff
changeset
|
317 |
}; |
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diff
changeset
|
318 |
|
1 | 319 |
bool inline valid_cp_range(int index, int length) { return (index > 0 && index < length); } |
320 |
||
12263
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coleenp
parents:
11423
diff
changeset
|
321 |
constantPoolHandle ClassFileParser::parse_constant_pool(Handle class_loader, TRAPS) { |
1 | 322 |
ClassFileStream* cfs = stream(); |
323 |
constantPoolHandle nullHandle; |
|
324 |
||
325 |
cfs->guarantee_more(3, CHECK_(nullHandle)); // length, first cp tag |
|
326 |
u2 length = cfs->get_u2_fast(); |
|
327 |
guarantee_property( |
|
328 |
length >= 1, "Illegal constant pool size %u in class file %s", |
|
329 |
length, CHECK_(nullHandle)); |
|
330 |
constantPoolOop constant_pool = |
|
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
1661
diff
changeset
|
331 |
oopFactory::new_constantPool(length, |
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
332 |
oopDesc::IsSafeConc, |
1894
5c343868d071
6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents:
1661
diff
changeset
|
333 |
CHECK_(nullHandle)); |
1 | 334 |
constantPoolHandle cp (THREAD, constant_pool); |
335 |
||
336 |
cp->set_partially_loaded(); // Enables heap verify to work on partial constantPoolOops |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
337 |
ConstantPoolCleaner cp_in_error(cp); // set constant pool to be cleaned up. |
1 | 338 |
|
339 |
// parsing constant pool entries |
|
12263
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coleenp
parents:
11423
diff
changeset
|
340 |
parse_constant_pool_entries(class_loader, cp, length, CHECK_(nullHandle)); |
1 | 341 |
|
342 |
int index = 1; // declared outside of loops for portability |
|
343 |
||
344 |
// first verification pass - validate cross references and fixup class and string constants |
|
345 |
for (index = 1; index < length; index++) { // Index 0 is unused |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
346 |
jbyte tag = cp->tag_at(index).value(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
347 |
switch (tag) { |
1 | 348 |
case JVM_CONSTANT_Class : |
349 |
ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present |
|
350 |
break; |
|
351 |
case JVM_CONSTANT_Fieldref : |
|
352 |
// fall through |
|
353 |
case JVM_CONSTANT_Methodref : |
|
354 |
// fall through |
|
355 |
case JVM_CONSTANT_InterfaceMethodref : { |
|
356 |
if (!_need_verify) break; |
|
357 |
int klass_ref_index = cp->klass_ref_index_at(index); |
|
358 |
int name_and_type_ref_index = cp->name_and_type_ref_index_at(index); |
|
359 |
check_property(valid_cp_range(klass_ref_index, length) && |
|
1550
be2fc37a817f
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jrose
parents:
670
diff
changeset
|
360 |
is_klass_reference(cp, klass_ref_index), |
1 | 361 |
"Invalid constant pool index %u in class file %s", |
362 |
klass_ref_index, |
|
363 |
CHECK_(nullHandle)); |
|
364 |
check_property(valid_cp_range(name_and_type_ref_index, length) && |
|
365 |
cp->tag_at(name_and_type_ref_index).is_name_and_type(), |
|
366 |
"Invalid constant pool index %u in class file %s", |
|
367 |
name_and_type_ref_index, |
|
368 |
CHECK_(nullHandle)); |
|
369 |
break; |
|
370 |
} |
|
371 |
case JVM_CONSTANT_String : |
|
372 |
ShouldNotReachHere(); // Only JVM_CONSTANT_StringIndex should be present |
|
373 |
break; |
|
374 |
case JVM_CONSTANT_Integer : |
|
375 |
break; |
|
376 |
case JVM_CONSTANT_Float : |
|
377 |
break; |
|
378 |
case JVM_CONSTANT_Long : |
|
379 |
case JVM_CONSTANT_Double : |
|
380 |
index++; |
|
381 |
check_property( |
|
382 |
(index < length && cp->tag_at(index).is_invalid()), |
|
383 |
"Improper constant pool long/double index %u in class file %s", |
|
384 |
index, CHECK_(nullHandle)); |
|
385 |
break; |
|
386 |
case JVM_CONSTANT_NameAndType : { |
|
387 |
if (!_need_verify) break; |
|
388 |
int name_ref_index = cp->name_ref_index_at(index); |
|
389 |
int signature_ref_index = cp->signature_ref_index_at(index); |
|
390 |
check_property( |
|
391 |
valid_cp_range(name_ref_index, length) && |
|
392 |
cp->tag_at(name_ref_index).is_utf8(), |
|
393 |
"Invalid constant pool index %u in class file %s", |
|
394 |
name_ref_index, CHECK_(nullHandle)); |
|
395 |
check_property( |
|
396 |
valid_cp_range(signature_ref_index, length) && |
|
397 |
cp->tag_at(signature_ref_index).is_utf8(), |
|
398 |
"Invalid constant pool index %u in class file %s", |
|
399 |
signature_ref_index, CHECK_(nullHandle)); |
|
400 |
break; |
|
401 |
} |
|
402 |
case JVM_CONSTANT_Utf8 : |
|
403 |
break; |
|
404 |
case JVM_CONSTANT_UnresolvedClass : // fall-through |
|
405 |
case JVM_CONSTANT_UnresolvedClassInError: |
|
406 |
ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present |
|
407 |
break; |
|
408 |
case JVM_CONSTANT_ClassIndex : |
|
409 |
{ |
|
410 |
int class_index = cp->klass_index_at(index); |
|
411 |
check_property( |
|
412 |
valid_cp_range(class_index, length) && |
|
413 |
cp->tag_at(class_index).is_utf8(), |
|
414 |
"Invalid constant pool index %u in class file %s", |
|
415 |
class_index, CHECK_(nullHandle)); |
|
416 |
cp->unresolved_klass_at_put(index, cp->symbol_at(class_index)); |
|
417 |
} |
|
418 |
break; |
|
419 |
case JVM_CONSTANT_UnresolvedString : |
|
420 |
ShouldNotReachHere(); // Only JVM_CONSTANT_StringIndex should be present |
|
421 |
break; |
|
422 |
case JVM_CONSTANT_StringIndex : |
|
423 |
{ |
|
424 |
int string_index = cp->string_index_at(index); |
|
425 |
check_property( |
|
426 |
valid_cp_range(string_index, length) && |
|
427 |
cp->tag_at(string_index).is_utf8(), |
|
428 |
"Invalid constant pool index %u in class file %s", |
|
429 |
string_index, CHECK_(nullHandle)); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
430 |
Symbol* sym = cp->symbol_at(string_index); |
1 | 431 |
cp->unresolved_string_at_put(index, sym); |
432 |
} |
|
433 |
break; |
|
5882 | 434 |
case JVM_CONSTANT_MethodHandle : |
435 |
{ |
|
436 |
int ref_index = cp->method_handle_index_at(index); |
|
437 |
check_property( |
|
438 |
valid_cp_range(ref_index, length) && |
|
8883
5569135acca3
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
8725
diff
changeset
|
439 |
EnableInvokeDynamic, |
5882 | 440 |
"Invalid constant pool index %u in class file %s", |
441 |
ref_index, CHECK_(nullHandle)); |
|
442 |
constantTag tag = cp->tag_at(ref_index); |
|
443 |
int ref_kind = cp->method_handle_ref_kind_at(index); |
|
444 |
switch (ref_kind) { |
|
445 |
case JVM_REF_getField: |
|
446 |
case JVM_REF_getStatic: |
|
447 |
case JVM_REF_putField: |
|
448 |
case JVM_REF_putStatic: |
|
449 |
check_property( |
|
450 |
tag.is_field(), |
|
451 |
"Invalid constant pool index %u in class file %s (not a field)", |
|
452 |
ref_index, CHECK_(nullHandle)); |
|
453 |
break; |
|
454 |
case JVM_REF_invokeVirtual: |
|
455 |
case JVM_REF_invokeStatic: |
|
456 |
case JVM_REF_invokeSpecial: |
|
457 |
case JVM_REF_newInvokeSpecial: |
|
458 |
check_property( |
|
459 |
tag.is_method(), |
|
460 |
"Invalid constant pool index %u in class file %s (not a method)", |
|
461 |
ref_index, CHECK_(nullHandle)); |
|
462 |
break; |
|
463 |
case JVM_REF_invokeInterface: |
|
464 |
check_property( |
|
465 |
tag.is_interface_method(), |
|
466 |
"Invalid constant pool index %u in class file %s (not an interface method)", |
|
467 |
ref_index, CHECK_(nullHandle)); |
|
468 |
break; |
|
469 |
default: |
|
470 |
classfile_parse_error( |
|
471 |
"Bad method handle kind at constant pool index %u in class file %s", |
|
472 |
index, CHECK_(nullHandle)); |
|
473 |
} |
|
474 |
// Keep the ref_index unchanged. It will be indirected at link-time. |
|
475 |
} |
|
476 |
break; |
|
477 |
case JVM_CONSTANT_MethodType : |
|
478 |
{ |
|
479 |
int ref_index = cp->method_type_index_at(index); |
|
480 |
check_property( |
|
481 |
valid_cp_range(ref_index, length) && |
|
482 |
cp->tag_at(ref_index).is_utf8() && |
|
8883
5569135acca3
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
8725
diff
changeset
|
483 |
EnableInvokeDynamic, |
5882 | 484 |
"Invalid constant pool index %u in class file %s", |
485 |
ref_index, CHECK_(nullHandle)); |
|
486 |
} |
|
487 |
break; |
|
6062
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
488 |
case JVM_CONSTANT_InvokeDynamic : |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
489 |
{ |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
490 |
int name_and_type_ref_index = cp->invoke_dynamic_name_and_type_ref_index_at(index); |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
491 |
check_property(valid_cp_range(name_and_type_ref_index, length) && |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
492 |
cp->tag_at(name_and_type_ref_index).is_name_and_type(), |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
493 |
"Invalid constant pool index %u in class file %s", |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
494 |
name_and_type_ref_index, |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
495 |
CHECK_(nullHandle)); |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
496 |
// bootstrap specifier index must be checked later, when BootstrapMethods attr is available |
6062
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
497 |
break; |
bab93afe9df7
6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents:
5888
diff
changeset
|
498 |
} |
1 | 499 |
default: |
5403
6b0dd9c75dde
6888954: argument formatting for assert() and friends
jcoomes
parents:
5250
diff
changeset
|
500 |
fatal(err_msg("bad constant pool tag value %u", |
6b0dd9c75dde
6888954: argument formatting for assert() and friends
jcoomes
parents:
5250
diff
changeset
|
501 |
cp->tag_at(index).value())); |
1 | 502 |
ShouldNotReachHere(); |
503 |
break; |
|
504 |
} // end of switch |
|
505 |
} // end of for |
|
506 |
||
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
507 |
if (_cp_patches != NULL) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
508 |
// need to treat this_class specially... |
8883
5569135acca3
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
8725
diff
changeset
|
509 |
assert(EnableInvokeDynamic, ""); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
510 |
int this_class_index; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
511 |
{ |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
512 |
cfs->guarantee_more(8, CHECK_(nullHandle)); // flags, this_class, super_class, infs_len |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
513 |
u1* mark = cfs->current(); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
514 |
u2 flags = cfs->get_u2_fast(); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
515 |
this_class_index = cfs->get_u2_fast(); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
516 |
cfs->set_current(mark); // revert to mark |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
517 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
518 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
519 |
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
|
520 |
if (has_cp_patch_at(index)) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
521 |
guarantee_property(index != this_class_index, |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
522 |
"Illegal constant pool patch to self at %d in class file %s", |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
523 |
index, CHECK_(nullHandle)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
524 |
patch_constant_pool(cp, index, cp_patch_at(index), CHECK_(nullHandle)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
525 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
526 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
527 |
// Ensure that all the patches have been used. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
528 |
for (index = 0; index < _cp_patches->length(); index++) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
529 |
guarantee_property(!has_cp_patch_at(index), |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
530 |
"Unused constant pool patch at %d in class file %s", |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
531 |
index, CHECK_(nullHandle)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
532 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
533 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
534 |
|
1 | 535 |
if (!_need_verify) { |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
536 |
cp_in_error.set_in_error(false); |
1 | 537 |
return cp; |
538 |
} |
|
539 |
||
540 |
// 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
|
541 |
// but not yet to the other entries |
1 | 542 |
for (index = 1; index < length; index++) { |
543 |
jbyte tag = cp->tag_at(index).value(); |
|
544 |
switch (tag) { |
|
545 |
case JVM_CONSTANT_UnresolvedClass: { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
546 |
Symbol* class_name = cp->unresolved_klass_at(index); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
547 |
// check the name, even if _cp_patches will overwrite it |
1 | 548 |
verify_legal_class_name(class_name, CHECK_(nullHandle)); |
549 |
break; |
|
550 |
} |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
551 |
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
|
552 |
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
|
553 |
int sig_index = cp->signature_ref_index_at(index); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
554 |
int name_index = cp->name_ref_index_at(index); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
555 |
Symbol* name = cp->symbol_at(name_index); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
556 |
Symbol* sig = cp->symbol_at(sig_index); |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
557 |
if (sig->byte_at(0) == JVM_SIGNATURE_FUNC) { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
558 |
verify_legal_method_signature(name, sig, CHECK_(nullHandle)); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
559 |
} else { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
560 |
verify_legal_field_signature(name, sig, CHECK_(nullHandle)); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
561 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
562 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
563 |
break; |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
564 |
} |
9117
30d757743e56
7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents:
9116
diff
changeset
|
565 |
case JVM_CONSTANT_InvokeDynamic: |
1 | 566 |
case JVM_CONSTANT_Fieldref: |
567 |
case JVM_CONSTANT_Methodref: |
|
568 |
case JVM_CONSTANT_InterfaceMethodref: { |
|
569 |
int name_and_type_ref_index = cp->name_and_type_ref_index_at(index); |
|
570 |
// already verified to be utf8 |
|
571 |
int name_ref_index = cp->name_ref_index_at(name_and_type_ref_index); |
|
572 |
// already verified to be utf8 |
|
573 |
int signature_ref_index = cp->signature_ref_index_at(name_and_type_ref_index); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
574 |
Symbol* name = cp->symbol_at(name_ref_index); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
575 |
Symbol* signature = cp->symbol_at(signature_ref_index); |
1 | 576 |
if (tag == JVM_CONSTANT_Fieldref) { |
577 |
verify_legal_field_name(name, CHECK_(nullHandle)); |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
578 |
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
|
579 |
// Signature is verified above, when iterating NameAndType_info. |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
580 |
// Need only to be sure it's the right type. |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
581 |
if (signature->byte_at(0) == JVM_SIGNATURE_FUNC) { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
582 |
throwIllegalSignature( |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
583 |
"Field", name, signature, CHECK_(nullHandle)); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
584 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
585 |
} else { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
586 |
verify_legal_field_signature(name, signature, CHECK_(nullHandle)); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
587 |
} |
1 | 588 |
} else { |
589 |
verify_legal_method_name(name, CHECK_(nullHandle)); |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
590 |
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
|
591 |
// Signature is verified above, when iterating NameAndType_info. |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
592 |
// Need only to be sure it's the right type. |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
593 |
if (signature->byte_at(0) != JVM_SIGNATURE_FUNC) { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
594 |
throwIllegalSignature( |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
595 |
"Method", name, signature, CHECK_(nullHandle)); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
596 |
} |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
597 |
} else { |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
598 |
verify_legal_method_signature(name, signature, CHECK_(nullHandle)); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
599 |
} |
1 | 600 |
if (tag == JVM_CONSTANT_Methodref) { |
601 |
// 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
|
602 |
assert(name != NULL, "method name in constant pool is null"); |
1 | 603 |
unsigned int name_len = name->utf8_length(); |
604 |
assert(name_len > 0, "bad method name"); // already verified as legal name |
|
605 |
if (name->byte_at(0) == '<') { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
606 |
if (name != vmSymbols::object_initializer_name()) { |
1 | 607 |
classfile_parse_error( |
608 |
"Bad method name at constant pool index %u in class file %s", |
|
609 |
name_ref_index, CHECK_(nullHandle)); |
|
610 |
} |
|
611 |
} |
|
612 |
} |
|
613 |
} |
|
614 |
break; |
|
615 |
} |
|
5882 | 616 |
case JVM_CONSTANT_MethodHandle: { |
617 |
int ref_index = cp->method_handle_index_at(index); |
|
618 |
int ref_kind = cp->method_handle_ref_kind_at(index); |
|
619 |
switch (ref_kind) { |
|
620 |
case JVM_REF_invokeVirtual: |
|
621 |
case JVM_REF_invokeStatic: |
|
622 |
case JVM_REF_invokeSpecial: |
|
623 |
case JVM_REF_newInvokeSpecial: |
|
624 |
{ |
|
625 |
int name_and_type_ref_index = cp->name_and_type_ref_index_at(ref_index); |
|
626 |
int name_ref_index = cp->name_ref_index_at(name_and_type_ref_index); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
627 |
Symbol* name = cp->symbol_at(name_ref_index); |
5882 | 628 |
if (ref_kind == JVM_REF_newInvokeSpecial) { |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
629 |
if (name != vmSymbols::object_initializer_name()) { |
5882 | 630 |
classfile_parse_error( |
631 |
"Bad constructor name at constant pool index %u in class file %s", |
|
632 |
name_ref_index, CHECK_(nullHandle)); |
|
633 |
} |
|
634 |
} else { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
635 |
if (name == vmSymbols::object_initializer_name()) { |
5882 | 636 |
classfile_parse_error( |
637 |
"Bad method name at constant pool index %u in class file %s", |
|
638 |
name_ref_index, CHECK_(nullHandle)); |
|
639 |
} |
|
640 |
} |
|
641 |
} |
|
642 |
break; |
|
643 |
// Other ref_kinds are already fully checked in previous pass. |
|
644 |
} |
|
645 |
break; |
|
646 |
} |
|
647 |
case JVM_CONSTANT_MethodType: { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
648 |
Symbol* no_name = vmSymbols::type_name(); // place holder |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
649 |
Symbol* signature = cp->method_type_signature_at(index); |
5882 | 650 |
verify_legal_method_signature(no_name, signature, CHECK_(nullHandle)); |
651 |
break; |
|
652 |
} |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
653 |
case JVM_CONSTANT_Utf8: { |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
654 |
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
|
655 |
} |
1 | 656 |
} // end of switch |
657 |
} // end of for |
|
658 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
659 |
cp_in_error.set_in_error(false); |
1 | 660 |
return cp; |
661 |
} |
|
662 |
||
663 |
||
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
664 |
void ClassFileParser::patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS) { |
8883
5569135acca3
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
8725
diff
changeset
|
665 |
assert(EnableInvokeDynamic, ""); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
666 |
BasicType patch_type = T_VOID; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
667 |
switch (cp->tag_at(index).value()) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
668 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
669 |
case JVM_CONSTANT_UnresolvedClass : |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
670 |
// Patching a class means pre-resolving it. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
671 |
// The name in the constant pool is ignored. |
5882 | 672 |
if (java_lang_Class::is_instance(patch())) { |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
673 |
guarantee_property(!java_lang_Class::is_primitive(patch()), |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
674 |
"Illegal class patch at %d in class file %s", |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
675 |
index, CHECK); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
676 |
cp->klass_at_put(index, java_lang_Class::as_klassOop(patch())); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
677 |
} else { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
678 |
guarantee_property(java_lang_String::is_instance(patch()), |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
679 |
"Illegal class patch at %d in class file %s", |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
680 |
index, CHECK); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
681 |
Symbol* name = java_lang_String::as_symbol(patch(), CHECK); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
682 |
cp->unresolved_klass_at_put(index, name); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
683 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
684 |
break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
685 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
686 |
case JVM_CONSTANT_UnresolvedString : |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
687 |
// Patching a string means pre-resolving it. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
688 |
// The spelling in the constant pool is ignored. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
689 |
// The constant reference may be any object whatever. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
690 |
// If it is not a real interned string, the constant is referred |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
691 |
// to as a "pseudo-string", and must be presented to the CP |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
692 |
// explicitly, because it may require scavenging. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
693 |
cp->pseudo_string_at_put(index, patch()); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
694 |
break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
695 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
696 |
case JVM_CONSTANT_Integer : patch_type = T_INT; goto patch_prim; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
697 |
case JVM_CONSTANT_Float : patch_type = T_FLOAT; goto patch_prim; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
698 |
case JVM_CONSTANT_Long : patch_type = T_LONG; goto patch_prim; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
699 |
case JVM_CONSTANT_Double : patch_type = T_DOUBLE; goto patch_prim; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
700 |
patch_prim: |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
701 |
{ |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
702 |
jvalue value; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
703 |
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
|
704 |
guarantee_property(value_type == patch_type, |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
705 |
"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
|
706 |
index, CHECK); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
707 |
switch (value_type) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
708 |
case T_INT: cp->int_at_put(index, value.i); break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
709 |
case T_FLOAT: cp->float_at_put(index, value.f); break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
710 |
case T_LONG: cp->long_at_put(index, value.j); break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
711 |
case T_DOUBLE: cp->double_at_put(index, value.d); break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
712 |
default: assert(false, ""); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
713 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
714 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
715 |
break; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
716 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
717 |
default: |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
718 |
// %%% TODO: put method handles into CONSTANT_InterfaceMethodref, etc. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
719 |
guarantee_property(!has_cp_patch_at(index), |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
720 |
"Illegal unexpected patch at %d in class file %s", |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
721 |
index, CHECK); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
722 |
return; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
723 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
724 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
725 |
// 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
|
726 |
clear_cp_patch_at(index); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
727 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
728 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
729 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
730 |
|
1 | 731 |
class NameSigHash: public ResourceObj { |
732 |
public: |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
733 |
Symbol* _name; // name |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
734 |
Symbol* _sig; // signature |
1 | 735 |
NameSigHash* _next; // Next entry in hash table |
736 |
}; |
|
737 |
||
738 |
||
739 |
#define HASH_ROW_SIZE 256 |
|
740 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
741 |
unsigned int hash(Symbol* name, Symbol* sig) { |
1 | 742 |
unsigned int raw_hash = 0; |
743 |
raw_hash += ((unsigned int)(uintptr_t)name) >> (LogHeapWordSize + 2); |
|
744 |
raw_hash += ((unsigned int)(uintptr_t)sig) >> LogHeapWordSize; |
|
745 |
||
746 |
return (raw_hash + (unsigned int)(uintptr_t)name) % HASH_ROW_SIZE; |
|
747 |
} |
|
748 |
||
749 |
||
750 |
void initialize_hashtable(NameSigHash** table) { |
|
751 |
memset((void*)table, 0, sizeof(NameSigHash*) * HASH_ROW_SIZE); |
|
752 |
} |
|
753 |
||
754 |
// Return false if the name/sig combination is found in table. |
|
755 |
// Return true if no duplicate is found. And name/sig is added as a new entry in table. |
|
756 |
// The old format checker uses heap sort to find duplicates. |
|
757 |
// 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
|
758 |
// of table since we don't expect Symbol*'s to move. |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
759 |
bool put_after_lookup(Symbol* name, Symbol* sig, NameSigHash** table) { |
1 | 760 |
assert(name != NULL, "name in constant pool is NULL"); |
761 |
||
762 |
// First lookup for duplicates |
|
763 |
int index = hash(name, sig); |
|
764 |
NameSigHash* entry = table[index]; |
|
765 |
while (entry != NULL) { |
|
766 |
if (entry->_name == name && entry->_sig == sig) { |
|
767 |
return false; |
|
768 |
} |
|
769 |
entry = entry->_next; |
|
770 |
} |
|
771 |
||
772 |
// No duplicate is found, allocate a new entry and fill it. |
|
773 |
entry = new NameSigHash(); |
|
774 |
entry->_name = name; |
|
775 |
entry->_sig = sig; |
|
776 |
||
777 |
// Insert into hash table |
|
778 |
entry->_next = table[index]; |
|
779 |
table[index] = entry; |
|
780 |
||
781 |
return true; |
|
782 |
} |
|
783 |
||
784 |
||
785 |
objArrayHandle ClassFileParser::parse_interfaces(constantPoolHandle cp, |
|
786 |
int length, |
|
787 |
Handle class_loader, |
|
788 |
Handle protection_domain, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
789 |
Symbol* class_name, |
1 | 790 |
TRAPS) { |
791 |
ClassFileStream* cfs = stream(); |
|
792 |
assert(length > 0, "only called for length>0"); |
|
793 |
objArrayHandle nullHandle; |
|
794 |
objArrayOop interface_oop = oopFactory::new_system_objArray(length, CHECK_(nullHandle)); |
|
795 |
objArrayHandle interfaces (THREAD, interface_oop); |
|
796 |
||
797 |
int index; |
|
798 |
for (index = 0; index < length; index++) { |
|
799 |
u2 interface_index = cfs->get_u2(CHECK_(nullHandle)); |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
800 |
KlassHandle interf; |
1 | 801 |
check_property( |
802 |
valid_cp_range(interface_index, cp->length()) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
803 |
is_klass_reference(cp, interface_index), |
1 | 804 |
"Interface name has bad constant pool index %u in class file %s", |
805 |
interface_index, CHECK_(nullHandle)); |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
806 |
if (cp->tag_at(interface_index).is_klass()) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
807 |
interf = KlassHandle(THREAD, cp->resolved_klass_at(interface_index)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
808 |
} else { |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
809 |
Symbol* unresolved_klass = cp->klass_name_at(interface_index); |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
810 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
811 |
// Don't need to check legal name because it's checked when parsing constant pool. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
812 |
// But need to make sure it's not an array type. |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
813 |
guarantee_property(unresolved_klass->byte_at(0) != JVM_SIGNATURE_ARRAY, |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
814 |
"Bad interface name in class file %s", CHECK_(nullHandle)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
815 |
|
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
816 |
// Call resolve_super so classcircularity is checked |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
817 |
klassOop k = SystemDictionary::resolve_super_or_fail(class_name, |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
818 |
unresolved_klass, class_loader, protection_domain, |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
819 |
false, CHECK_(nullHandle)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
820 |
interf = KlassHandle(THREAD, k); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
821 |
|
1661
7cb0f0d385f3
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
1550
diff
changeset
|
822 |
if (LinkWellKnownClasses) // my super type is well known to me |
7cb0f0d385f3
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
1550
diff
changeset
|
823 |
cp->klass_at_put(interface_index, interf()); // eagerly resolve |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
824 |
} |
1 | 825 |
|
826 |
if (!Klass::cast(interf())->is_interface()) { |
|
827 |
THROW_MSG_(vmSymbols::java_lang_IncompatibleClassChangeError(), "Implementing class", nullHandle); |
|
828 |
} |
|
829 |
interfaces->obj_at_put(index, interf()); |
|
830 |
} |
|
831 |
||
832 |
if (!_need_verify || length <= 1) { |
|
833 |
return interfaces; |
|
834 |
} |
|
835 |
||
836 |
// Check if there's any duplicates in interfaces |
|
837 |
ResourceMark rm(THREAD); |
|
838 |
NameSigHash** interface_names = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
839 |
THREAD, NameSigHash*, HASH_ROW_SIZE); |
|
840 |
initialize_hashtable(interface_names); |
|
841 |
bool dup = false; |
|
842 |
{ |
|
843 |
debug_only(No_Safepoint_Verifier nsv;) |
|
844 |
for (index = 0; index < length; index++) { |
|
845 |
klassOop k = (klassOop)interfaces->obj_at(index); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
846 |
Symbol* name = instanceKlass::cast(k)->name(); |
1 | 847 |
// If no duplicates, add (name, NULL) in hashtable interface_names. |
848 |
if (!put_after_lookup(name, NULL, interface_names)) { |
|
849 |
dup = true; |
|
850 |
break; |
|
851 |
} |
|
852 |
} |
|
853 |
} |
|
854 |
if (dup) { |
|
855 |
classfile_parse_error("Duplicate interface name in class file %s", |
|
856 |
CHECK_(nullHandle)); |
|
857 |
} |
|
858 |
||
859 |
return interfaces; |
|
860 |
} |
|
861 |
||
862 |
||
863 |
void ClassFileParser::verify_constantvalue(int constantvalue_index, int signature_index, constantPoolHandle cp, TRAPS) { |
|
864 |
// Make sure the constant pool entry is of a type appropriate to this field |
|
865 |
guarantee_property( |
|
866 |
(constantvalue_index > 0 && |
|
867 |
constantvalue_index < cp->length()), |
|
868 |
"Bad initial value index %u in ConstantValue attribute in class file %s", |
|
869 |
constantvalue_index, CHECK); |
|
870 |
constantTag value_type = cp->tag_at(constantvalue_index); |
|
871 |
switch ( cp->basic_type_for_signature_at(signature_index) ) { |
|
872 |
case T_LONG: |
|
873 |
guarantee_property(value_type.is_long(), "Inconsistent constant value type in class file %s", CHECK); |
|
874 |
break; |
|
875 |
case T_FLOAT: |
|
876 |
guarantee_property(value_type.is_float(), "Inconsistent constant value type in class file %s", CHECK); |
|
877 |
break; |
|
878 |
case T_DOUBLE: |
|
879 |
guarantee_property(value_type.is_double(), "Inconsistent constant value type in class file %s", CHECK); |
|
880 |
break; |
|
881 |
case T_BYTE: case T_CHAR: case T_SHORT: case T_BOOLEAN: case T_INT: |
|
882 |
guarantee_property(value_type.is_int(), "Inconsistent constant value type in class file %s", CHECK); |
|
883 |
break; |
|
884 |
case T_OBJECT: |
|
4567
7fc02fbe5c7a
6893268: additional dynamic language related optimizations in C2
twisti
parents:
4478
diff
changeset
|
885 |
guarantee_property((cp->symbol_at(signature_index)->equals("Ljava/lang/String;") |
1 | 886 |
&& (value_type.is_string() || value_type.is_unresolved_string())), |
887 |
"Bad string initial value in class file %s", CHECK); |
|
888 |
break; |
|
889 |
default: |
|
890 |
classfile_parse_error( |
|
891 |
"Unable to set initial value %u in class file %s", |
|
892 |
constantvalue_index, CHECK); |
|
893 |
} |
|
894 |
} |
|
895 |
||
896 |
||
897 |
// Parse attributes for a field. |
|
898 |
void ClassFileParser::parse_field_attributes(constantPoolHandle cp, |
|
899 |
u2 attributes_count, |
|
900 |
bool is_static, u2 signature_index, |
|
901 |
u2* constantvalue_index_addr, |
|
902 |
bool* is_synthetic_addr, |
|
903 |
u2* generic_signature_index_addr, |
|
904 |
typeArrayHandle* field_annotations, |
|
905 |
TRAPS) { |
|
906 |
ClassFileStream* cfs = stream(); |
|
907 |
assert(attributes_count > 0, "length should be greater than 0"); |
|
908 |
u2 constantvalue_index = 0; |
|
909 |
u2 generic_signature_index = 0; |
|
910 |
bool is_synthetic = false; |
|
911 |
u1* runtime_visible_annotations = NULL; |
|
912 |
int runtime_visible_annotations_length = 0; |
|
913 |
u1* runtime_invisible_annotations = NULL; |
|
914 |
int runtime_invisible_annotations_length = 0; |
|
915 |
while (attributes_count--) { |
|
916 |
cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length |
|
917 |
u2 attribute_name_index = cfs->get_u2_fast(); |
|
918 |
u4 attribute_length = cfs->get_u4_fast(); |
|
919 |
check_property(valid_cp_range(attribute_name_index, cp->length()) && |
|
920 |
cp->tag_at(attribute_name_index).is_utf8(), |
|
921 |
"Invalid field attribute index %u in class file %s", |
|
922 |
attribute_name_index, |
|
923 |
CHECK); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
924 |
Symbol* attribute_name = cp->symbol_at(attribute_name_index); |
1 | 925 |
if (is_static && attribute_name == vmSymbols::tag_constant_value()) { |
926 |
// ignore if non-static |
|
927 |
if (constantvalue_index != 0) { |
|
928 |
classfile_parse_error("Duplicate ConstantValue attribute in class file %s", CHECK); |
|
929 |
} |
|
930 |
check_property( |
|
931 |
attribute_length == 2, |
|
932 |
"Invalid ConstantValue field attribute length %u in class file %s", |
|
933 |
attribute_length, CHECK); |
|
934 |
constantvalue_index = cfs->get_u2(CHECK); |
|
935 |
if (_need_verify) { |
|
936 |
verify_constantvalue(constantvalue_index, signature_index, cp, CHECK); |
|
937 |
} |
|
938 |
} else if (attribute_name == vmSymbols::tag_synthetic()) { |
|
939 |
if (attribute_length != 0) { |
|
940 |
classfile_parse_error( |
|
941 |
"Invalid Synthetic field attribute length %u in class file %s", |
|
942 |
attribute_length, CHECK); |
|
943 |
} |
|
944 |
is_synthetic = true; |
|
945 |
} else if (attribute_name == vmSymbols::tag_deprecated()) { // 4276120 |
|
946 |
if (attribute_length != 0) { |
|
947 |
classfile_parse_error( |
|
948 |
"Invalid Deprecated field attribute length %u in class file %s", |
|
949 |
attribute_length, CHECK); |
|
950 |
} |
|
951 |
} else if (_major_version >= JAVA_1_5_VERSION) { |
|
952 |
if (attribute_name == vmSymbols::tag_signature()) { |
|
953 |
if (attribute_length != 2) { |
|
954 |
classfile_parse_error( |
|
955 |
"Wrong size %u for field's Signature attribute in class file %s", |
|
956 |
attribute_length, CHECK); |
|
957 |
} |
|
958 |
generic_signature_index = cfs->get_u2(CHECK); |
|
959 |
} else if (attribute_name == vmSymbols::tag_runtime_visible_annotations()) { |
|
960 |
runtime_visible_annotations_length = attribute_length; |
|
961 |
runtime_visible_annotations = cfs->get_u1_buffer(); |
|
962 |
assert(runtime_visible_annotations != NULL, "null visible annotations"); |
|
963 |
cfs->skip_u1(runtime_visible_annotations_length, CHECK); |
|
964 |
} else if (PreserveAllAnnotations && attribute_name == vmSymbols::tag_runtime_invisible_annotations()) { |
|
965 |
runtime_invisible_annotations_length = attribute_length; |
|
966 |
runtime_invisible_annotations = cfs->get_u1_buffer(); |
|
967 |
assert(runtime_invisible_annotations != NULL, "null invisible annotations"); |
|
968 |
cfs->skip_u1(runtime_invisible_annotations_length, CHECK); |
|
969 |
} else { |
|
970 |
cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes |
|
971 |
} |
|
972 |
} else { |
|
973 |
cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes |
|
974 |
} |
|
975 |
} |
|
976 |
||
977 |
*constantvalue_index_addr = constantvalue_index; |
|
978 |
*is_synthetic_addr = is_synthetic; |
|
979 |
*generic_signature_index_addr = generic_signature_index; |
|
980 |
*field_annotations = assemble_annotations(runtime_visible_annotations, |
|
981 |
runtime_visible_annotations_length, |
|
982 |
runtime_invisible_annotations, |
|
983 |
runtime_invisible_annotations_length, |
|
984 |
CHECK); |
|
985 |
return; |
|
986 |
} |
|
987 |
||
988 |
||
989 |
// Field allocation types. Used for computing field offsets. |
|
990 |
||
991 |
enum FieldAllocationType { |
|
992 |
STATIC_OOP, // Oops |
|
993 |
STATIC_BYTE, // Boolean, Byte, char |
|
994 |
STATIC_SHORT, // shorts |
|
995 |
STATIC_WORD, // ints |
|
10546 | 996 |
STATIC_DOUBLE, // aligned long or double |
1 | 997 |
NONSTATIC_OOP, |
998 |
NONSTATIC_BYTE, |
|
999 |
NONSTATIC_SHORT, |
|
1000 |
NONSTATIC_WORD, |
|
1001 |
NONSTATIC_DOUBLE, |
|
10546 | 1002 |
MAX_FIELD_ALLOCATION_TYPE, |
1003 |
BAD_ALLOCATION_TYPE = -1 |
|
1 | 1004 |
}; |
1005 |
||
10546 | 1006 |
static FieldAllocationType _basic_type_to_atype[2 * (T_CONFLICT + 1)] = { |
1007 |
BAD_ALLOCATION_TYPE, // 0 |
|
1008 |
BAD_ALLOCATION_TYPE, // 1 |
|
1009 |
BAD_ALLOCATION_TYPE, // 2 |
|
1010 |
BAD_ALLOCATION_TYPE, // 3 |
|
1011 |
NONSTATIC_BYTE , // T_BOOLEAN = 4, |
|
1012 |
NONSTATIC_SHORT, // T_CHAR = 5, |
|
1013 |
NONSTATIC_WORD, // T_FLOAT = 6, |
|
1014 |
NONSTATIC_DOUBLE, // T_DOUBLE = 7, |
|
1015 |
NONSTATIC_BYTE, // T_BYTE = 8, |
|
1016 |
NONSTATIC_SHORT, // T_SHORT = 9, |
|
1017 |
NONSTATIC_WORD, // T_INT = 10, |
|
1018 |
NONSTATIC_DOUBLE, // T_LONG = 11, |
|
1019 |
NONSTATIC_OOP, // T_OBJECT = 12, |
|
1020 |
NONSTATIC_OOP, // T_ARRAY = 13, |
|
1021 |
BAD_ALLOCATION_TYPE, // T_VOID = 14, |
|
1022 |
BAD_ALLOCATION_TYPE, // T_ADDRESS = 15, |
|
1023 |
BAD_ALLOCATION_TYPE, // T_NARROWOOP= 16, |
|
1024 |
BAD_ALLOCATION_TYPE, // T_CONFLICT = 17, |
|
1025 |
BAD_ALLOCATION_TYPE, // 0 |
|
1026 |
BAD_ALLOCATION_TYPE, // 1 |
|
1027 |
BAD_ALLOCATION_TYPE, // 2 |
|
1028 |
BAD_ALLOCATION_TYPE, // 3 |
|
1029 |
STATIC_BYTE , // T_BOOLEAN = 4, |
|
1030 |
STATIC_SHORT, // T_CHAR = 5, |
|
1031 |
STATIC_WORD, // T_FLOAT = 6, |
|
1032 |
STATIC_DOUBLE, // T_DOUBLE = 7, |
|
1033 |
STATIC_BYTE, // T_BYTE = 8, |
|
1034 |
STATIC_SHORT, // T_SHORT = 9, |
|
1035 |
STATIC_WORD, // T_INT = 10, |
|
1036 |
STATIC_DOUBLE, // T_LONG = 11, |
|
1037 |
STATIC_OOP, // T_OBJECT = 12, |
|
1038 |
STATIC_OOP, // T_ARRAY = 13, |
|
1039 |
BAD_ALLOCATION_TYPE, // T_VOID = 14, |
|
1040 |
BAD_ALLOCATION_TYPE, // T_ADDRESS = 15, |
|
1041 |
BAD_ALLOCATION_TYPE, // T_NARROWOOP= 16, |
|
1042 |
BAD_ALLOCATION_TYPE, // T_CONFLICT = 17, |
|
1 | 1043 |
}; |
1044 |
||
10546 | 1045 |
static FieldAllocationType basic_type_to_atype(bool is_static, BasicType type) { |
1046 |
assert(type >= T_BOOLEAN && type < T_VOID, "only allowable values"); |
|
1047 |
FieldAllocationType result = _basic_type_to_atype[type + (is_static ? (T_CONFLICT + 1) : 0)]; |
|
1048 |
assert(result != BAD_ALLOCATION_TYPE, "bad type"); |
|
1049 |
return result; |
|
1050 |
} |
|
1051 |
||
1052 |
class FieldAllocationCount: public ResourceObj { |
|
1053 |
public: |
|
11412
62fe312f32c5
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
10546
diff
changeset
|
1054 |
u2 count[MAX_FIELD_ALLOCATION_TYPE]; |
10546 | 1055 |
|
1056 |
FieldAllocationCount() { |
|
1057 |
for (int i = 0; i < MAX_FIELD_ALLOCATION_TYPE; i++) { |
|
1058 |
count[i] = 0; |
|
1059 |
} |
|
1060 |
} |
|
1061 |
||
1062 |
FieldAllocationType update(bool is_static, BasicType type) { |
|
1063 |
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
|
1064 |
// 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
|
1065 |
assert(count[atype] < 0xFFFF, "More than 65535 fields"); |
10546 | 1066 |
count[atype]++; |
1067 |
return atype; |
|
1068 |
} |
|
1069 |
}; |
|
1070 |
||
1071 |
||
1072 |
typeArrayHandle ClassFileParser::parse_fields(Symbol* class_name, |
|
1073 |
constantPoolHandle cp, bool is_interface, |
|
1074 |
FieldAllocationCount *fac, |
|
1075 |
objArrayHandle* fields_annotations, |
|
11412
62fe312f32c5
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
10546
diff
changeset
|
1076 |
u2* java_fields_count_ptr, TRAPS) { |
1 | 1077 |
ClassFileStream* cfs = stream(); |
1078 |
typeArrayHandle nullHandle; |
|
1079 |
cfs->guarantee_more(2, CHECK_(nullHandle)); // length |
|
1080 |
u2 length = cfs->get_u2_fast(); |
|
10546 | 1081 |
*java_fields_count_ptr = length; |
1082 |
||
1083 |
int num_injected = 0; |
|
1084 |
InjectedField* injected = JavaClasses::get_injected(class_name, &num_injected); |
|
1085 |
||
1 | 1086 |
// Tuples of shorts [access, name index, sig index, initial value index, byte offset, generic signature index] |
10546 | 1087 |
typeArrayOop new_fields = oopFactory::new_permanent_shortArray((length + num_injected) * FieldInfo::field_slots, CHECK_(nullHandle)); |
1 | 1088 |
typeArrayHandle fields(THREAD, new_fields); |
1089 |
||
1090 |
typeArrayHandle field_annotations; |
|
1091 |
for (int n = 0; n < length; n++) { |
|
1092 |
cfs->guarantee_more(8, CHECK_(nullHandle)); // access_flags, name_index, descriptor_index, attributes_count |
|
1093 |
||
1094 |
AccessFlags access_flags; |
|
1095 |
jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_FIELD_MODIFIERS; |
|
1096 |
verify_legal_field_modifiers(flags, is_interface, CHECK_(nullHandle)); |
|
1097 |
access_flags.set_flags(flags); |
|
1098 |
||
1099 |
u2 name_index = cfs->get_u2_fast(); |
|
1100 |
int cp_size = cp->length(); |
|
1101 |
check_property( |
|
1102 |
valid_cp_range(name_index, cp_size) && cp->tag_at(name_index).is_utf8(), |
|
1103 |
"Invalid constant pool index %u for field name in class file %s", |
|
1104 |
name_index, CHECK_(nullHandle)); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1105 |
Symbol* name = cp->symbol_at(name_index); |
1 | 1106 |
verify_legal_field_name(name, CHECK_(nullHandle)); |
1107 |
||
1108 |
u2 signature_index = cfs->get_u2_fast(); |
|
1109 |
check_property( |
|
1110 |
valid_cp_range(signature_index, cp_size) && |
|
1111 |
cp->tag_at(signature_index).is_utf8(), |
|
1112 |
"Invalid constant pool index %u for field signature in class file %s", |
|
1113 |
signature_index, CHECK_(nullHandle)); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1114 |
Symbol* sig = cp->symbol_at(signature_index); |
1 | 1115 |
verify_legal_field_signature(name, sig, CHECK_(nullHandle)); |
1116 |
||
1117 |
u2 constantvalue_index = 0; |
|
1118 |
bool is_synthetic = false; |
|
1119 |
u2 generic_signature_index = 0; |
|
1120 |
bool is_static = access_flags.is_static(); |
|
1121 |
||
1122 |
u2 attributes_count = cfs->get_u2_fast(); |
|
1123 |
if (attributes_count > 0) { |
|
1124 |
parse_field_attributes(cp, attributes_count, is_static, signature_index, |
|
1125 |
&constantvalue_index, &is_synthetic, |
|
1126 |
&generic_signature_index, &field_annotations, |
|
1127 |
CHECK_(nullHandle)); |
|
1128 |
if (field_annotations.not_null()) { |
|
1129 |
if (fields_annotations->is_null()) { |
|
1130 |
objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle)); |
|
1131 |
*fields_annotations = objArrayHandle(THREAD, md); |
|
1132 |
} |
|
1133 |
(*fields_annotations)->obj_at_put(n, field_annotations()); |
|
1134 |
} |
|
1135 |
if (is_synthetic) { |
|
1136 |
access_flags.set_is_synthetic(); |
|
1137 |
} |
|
1138 |
} |
|
1139 |
||
10546 | 1140 |
FieldInfo* field = FieldInfo::from_field_array(fields(), n); |
1141 |
field->initialize(access_flags.as_short(), |
|
1142 |
name_index, |
|
1143 |
signature_index, |
|
1144 |
constantvalue_index, |
|
1145 |
generic_signature_index, |
|
1146 |
0); |
|
1147 |
||
1148 |
BasicType type = cp->basic_type_for_signature_at(signature_index); |
|
1 | 1149 |
|
1150 |
// Remember how many oops we encountered and compute allocation type |
|
10546 | 1151 |
FieldAllocationType atype = fac->update(is_static, type); |
1 | 1152 |
|
1153 |
// The correct offset is computed later (all oop fields will be located together) |
|
1154 |
// We temporarily store the allocation type in the offset field |
|
10546 | 1155 |
field->set_offset(atype); |
1156 |
} |
|
1157 |
||
1158 |
if (num_injected != 0) { |
|
1159 |
int index = length; |
|
1160 |
for (int n = 0; n < num_injected; n++) { |
|
1161 |
// Check for duplicates |
|
1162 |
if (injected[n].may_be_java) { |
|
1163 |
Symbol* name = injected[n].name(); |
|
1164 |
Symbol* signature = injected[n].signature(); |
|
1165 |
bool duplicate = false; |
|
1166 |
for (int i = 0; i < length; i++) { |
|
1167 |
FieldInfo* f = FieldInfo::from_field_array(fields(), i); |
|
1168 |
if (name == cp->symbol_at(f->name_index()) && |
|
1169 |
signature == cp->symbol_at(f->signature_index())) { |
|
1170 |
// Symbol is desclared in Java so skip this one |
|
1171 |
duplicate = true; |
|
1172 |
break; |
|
1173 |
} |
|
1174 |
} |
|
1175 |
if (duplicate) { |
|
1176 |
// These will be removed from the field array at the end |
|
1177 |
continue; |
|
1178 |
} |
|
1179 |
} |
|
1180 |
||
1181 |
// Injected field |
|
1182 |
FieldInfo* field = FieldInfo::from_field_array(fields(), index); |
|
1183 |
field->initialize(JVM_ACC_FIELD_INTERNAL, |
|
1184 |
injected[n].name_index, |
|
1185 |
injected[n].signature_index, |
|
1186 |
0, |
|
1187 |
0, |
|
1188 |
0); |
|
1189 |
||
1190 |
BasicType type = FieldType::basic_type(injected[n].signature()); |
|
1191 |
||
1192 |
// Remember how many oops we encountered and compute allocation type |
|
1193 |
FieldAllocationType atype = fac->update(false, type); |
|
1194 |
||
1195 |
// The correct offset is computed later (all oop fields will be located together) |
|
1196 |
// We temporarily store the allocation type in the offset field |
|
1197 |
field->set_offset(atype); |
|
1198 |
index++; |
|
1199 |
} |
|
1200 |
||
1201 |
if (index < length + num_injected) { |
|
1202 |
// sometimes injected fields already exist in the Java source so |
|
1203 |
// the fields array could be too long. In that case trim the |
|
1204 |
// fields array. |
|
1205 |
new_fields = oopFactory::new_permanent_shortArray(index * FieldInfo::field_slots, CHECK_(nullHandle)); |
|
1206 |
for (int i = 0; i < index * FieldInfo::field_slots; i++) { |
|
1207 |
new_fields->short_at_put(i, fields->short_at(i)); |
|
1208 |
} |
|
1209 |
fields = new_fields; |
|
1210 |
} |
|
1 | 1211 |
} |
1212 |
||
1213 |
if (_need_verify && length > 1) { |
|
1214 |
// Check duplicated fields |
|
1215 |
ResourceMark rm(THREAD); |
|
1216 |
NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1217 |
THREAD, NameSigHash*, HASH_ROW_SIZE); |
|
1218 |
initialize_hashtable(names_and_sigs); |
|
1219 |
bool dup = false; |
|
1220 |
{ |
|
1221 |
debug_only(No_Safepoint_Verifier nsv;) |
|
10546 | 1222 |
for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) { |
1223 |
Symbol* name = fs.name(); |
|
1224 |
Symbol* sig = fs.signature(); |
|
1 | 1225 |
// If no duplicates, add name/signature in hashtable names_and_sigs. |
1226 |
if (!put_after_lookup(name, sig, names_and_sigs)) { |
|
1227 |
dup = true; |
|
1228 |
break; |
|
1229 |
} |
|
1230 |
} |
|
1231 |
} |
|
1232 |
if (dup) { |
|
1233 |
classfile_parse_error("Duplicate field name&signature in class file %s", |
|
1234 |
CHECK_(nullHandle)); |
|
1235 |
} |
|
1236 |
} |
|
1237 |
||
1238 |
return fields; |
|
1239 |
} |
|
1240 |
||
1241 |
||
1242 |
static void copy_u2_with_conversion(u2* dest, u2* src, int length) { |
|
1243 |
while (length-- > 0) { |
|
1244 |
*dest++ = Bytes::get_Java_u2((u1*) (src++)); |
|
1245 |
} |
|
1246 |
} |
|
1247 |
||
1248 |
||
1249 |
typeArrayHandle ClassFileParser::parse_exception_table(u4 code_length, |
|
1250 |
u4 exception_table_length, |
|
1251 |
constantPoolHandle cp, |
|
1252 |
TRAPS) { |
|
1253 |
ClassFileStream* cfs = stream(); |
|
1254 |
typeArrayHandle nullHandle; |
|
1255 |
||
1256 |
// 4-tuples of ints [start_pc, end_pc, handler_pc, catch_type index] |
|
1257 |
typeArrayOop eh = oopFactory::new_permanent_intArray(exception_table_length*4, CHECK_(nullHandle)); |
|
1258 |
typeArrayHandle exception_handlers = typeArrayHandle(THREAD, eh); |
|
1259 |
||
1260 |
int index = 0; |
|
1261 |
cfs->guarantee_more(8 * exception_table_length, CHECK_(nullHandle)); // start_pc, end_pc, handler_pc, catch_type_index |
|
1262 |
for (unsigned int i = 0; i < exception_table_length; i++) { |
|
1263 |
u2 start_pc = cfs->get_u2_fast(); |
|
1264 |
u2 end_pc = cfs->get_u2_fast(); |
|
1265 |
u2 handler_pc = cfs->get_u2_fast(); |
|
1266 |
u2 catch_type_index = cfs->get_u2_fast(); |
|
1267 |
// Will check legal target after parsing code array in verifier. |
|
1268 |
if (_need_verify) { |
|
1269 |
guarantee_property((start_pc < end_pc) && (end_pc <= code_length), |
|
1270 |
"Illegal exception table range in class file %s", CHECK_(nullHandle)); |
|
1271 |
guarantee_property(handler_pc < code_length, |
|
1272 |
"Illegal exception table handler in class file %s", CHECK_(nullHandle)); |
|
1273 |
if (catch_type_index != 0) { |
|
1274 |
guarantee_property(valid_cp_range(catch_type_index, cp->length()) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
1275 |
is_klass_reference(cp, catch_type_index), |
1 | 1276 |
"Catch type in exception table has bad constant type in class file %s", CHECK_(nullHandle)); |
1277 |
} |
|
1278 |
} |
|
1279 |
exception_handlers->int_at_put(index++, start_pc); |
|
1280 |
exception_handlers->int_at_put(index++, end_pc); |
|
1281 |
exception_handlers->int_at_put(index++, handler_pc); |
|
1282 |
exception_handlers->int_at_put(index++, catch_type_index); |
|
1283 |
} |
|
1284 |
return exception_handlers; |
|
1285 |
} |
|
1286 |
||
1287 |
void ClassFileParser::parse_linenumber_table( |
|
1288 |
u4 code_attribute_length, u4 code_length, |
|
1289 |
CompressedLineNumberWriteStream** write_stream, TRAPS) { |
|
1290 |
ClassFileStream* cfs = stream(); |
|
1291 |
unsigned int num_entries = cfs->get_u2(CHECK); |
|
1292 |
||
1293 |
// Each entry is a u2 start_pc, and a u2 line_number |
|
1294 |
unsigned int length_in_bytes = num_entries * (sizeof(u2) + sizeof(u2)); |
|
1295 |
||
1296 |
// Verify line number attribute and table length |
|
1297 |
check_property( |
|
1298 |
code_attribute_length == sizeof(u2) + length_in_bytes, |
|
1299 |
"LineNumberTable attribute has wrong length in class file %s", CHECK); |
|
1300 |
||
1301 |
cfs->guarantee_more(length_in_bytes, CHECK); |
|
1302 |
||
1303 |
if ((*write_stream) == NULL) { |
|
1304 |
if (length_in_bytes > fixed_buffer_size) { |
|
1305 |
(*write_stream) = new CompressedLineNumberWriteStream(length_in_bytes); |
|
1306 |
} else { |
|
1307 |
(*write_stream) = new CompressedLineNumberWriteStream( |
|
1308 |
linenumbertable_buffer, fixed_buffer_size); |
|
1309 |
} |
|
1310 |
} |
|
1311 |
||
1312 |
while (num_entries-- > 0) { |
|
1313 |
u2 bci = cfs->get_u2_fast(); // start_pc |
|
1314 |
u2 line = cfs->get_u2_fast(); // line_number |
|
1315 |
guarantee_property(bci < code_length, |
|
1316 |
"Invalid pc in LineNumberTable in class file %s", CHECK); |
|
1317 |
(*write_stream)->write_pair(bci, line); |
|
1318 |
} |
|
1319 |
} |
|
1320 |
||
1321 |
||
1322 |
// Class file LocalVariableTable elements. |
|
1323 |
class Classfile_LVT_Element VALUE_OBJ_CLASS_SPEC { |
|
1324 |
public: |
|
1325 |
u2 start_bci; |
|
1326 |
u2 length; |
|
1327 |
u2 name_cp_index; |
|
1328 |
u2 descriptor_cp_index; |
|
1329 |
u2 slot; |
|
1330 |
}; |
|
1331 |
||
1332 |
||
1333 |
class LVT_Hash: public CHeapObj { |
|
1334 |
public: |
|
1335 |
LocalVariableTableElement *_elem; // element |
|
1336 |
LVT_Hash* _next; // Next entry in hash table |
|
1337 |
}; |
|
1338 |
||
1339 |
unsigned int hash(LocalVariableTableElement *elem) { |
|
1340 |
unsigned int raw_hash = elem->start_bci; |
|
1341 |
||
1342 |
raw_hash = elem->length + raw_hash * 37; |
|
1343 |
raw_hash = elem->name_cp_index + raw_hash * 37; |
|
1344 |
raw_hash = elem->slot + raw_hash * 37; |
|
1345 |
||
1346 |
return raw_hash % HASH_ROW_SIZE; |
|
1347 |
} |
|
1348 |
||
1349 |
void initialize_hashtable(LVT_Hash** table) { |
|
1350 |
for (int i = 0; i < HASH_ROW_SIZE; i++) { |
|
1351 |
table[i] = NULL; |
|
1352 |
} |
|
1353 |
} |
|
1354 |
||
1355 |
void clear_hashtable(LVT_Hash** table) { |
|
1356 |
for (int i = 0; i < HASH_ROW_SIZE; i++) { |
|
1357 |
LVT_Hash* current = table[i]; |
|
1358 |
LVT_Hash* next; |
|
1359 |
while (current != NULL) { |
|
1360 |
next = current->_next; |
|
1361 |
current->_next = NULL; |
|
1362 |
delete(current); |
|
1363 |
current = next; |
|
1364 |
} |
|
1365 |
table[i] = NULL; |
|
1366 |
} |
|
1367 |
} |
|
1368 |
||
1369 |
LVT_Hash* LVT_lookup(LocalVariableTableElement *elem, int index, LVT_Hash** table) { |
|
1370 |
LVT_Hash* entry = table[index]; |
|
1371 |
||
1372 |
/* |
|
1373 |
* 3-tuple start_bci/length/slot has to be unique key, |
|
1374 |
* so the following comparison seems to be redundant: |
|
1375 |
* && elem->name_cp_index == entry->_elem->name_cp_index |
|
1376 |
*/ |
|
1377 |
while (entry != NULL) { |
|
1378 |
if (elem->start_bci == entry->_elem->start_bci |
|
1379 |
&& elem->length == entry->_elem->length |
|
1380 |
&& elem->name_cp_index == entry->_elem->name_cp_index |
|
1381 |
&& elem->slot == entry->_elem->slot |
|
1382 |
) { |
|
1383 |
return entry; |
|
1384 |
} |
|
1385 |
entry = entry->_next; |
|
1386 |
} |
|
1387 |
return NULL; |
|
1388 |
} |
|
1389 |
||
1390 |
// Return false if the local variable is found in table. |
|
1391 |
// Return true if no duplicate is found. |
|
1392 |
// And local variable is added as a new entry in table. |
|
1393 |
bool LVT_put_after_lookup(LocalVariableTableElement *elem, LVT_Hash** table) { |
|
1394 |
// First lookup for duplicates |
|
1395 |
int index = hash(elem); |
|
1396 |
LVT_Hash* entry = LVT_lookup(elem, index, table); |
|
1397 |
||
1398 |
if (entry != NULL) { |
|
1399 |
return false; |
|
1400 |
} |
|
1401 |
// No duplicate is found, allocate a new entry and fill it. |
|
1402 |
if ((entry = new LVT_Hash()) == NULL) { |
|
1403 |
return false; |
|
1404 |
} |
|
1405 |
entry->_elem = elem; |
|
1406 |
||
1407 |
// Insert into hash table |
|
1408 |
entry->_next = table[index]; |
|
1409 |
table[index] = entry; |
|
1410 |
||
1411 |
return true; |
|
1412 |
} |
|
1413 |
||
1414 |
void copy_lvt_element(Classfile_LVT_Element *src, LocalVariableTableElement *lvt) { |
|
1415 |
lvt->start_bci = Bytes::get_Java_u2((u1*) &src->start_bci); |
|
1416 |
lvt->length = Bytes::get_Java_u2((u1*) &src->length); |
|
1417 |
lvt->name_cp_index = Bytes::get_Java_u2((u1*) &src->name_cp_index); |
|
1418 |
lvt->descriptor_cp_index = Bytes::get_Java_u2((u1*) &src->descriptor_cp_index); |
|
1419 |
lvt->signature_cp_index = 0; |
|
1420 |
lvt->slot = Bytes::get_Java_u2((u1*) &src->slot); |
|
1421 |
} |
|
1422 |
||
1423 |
// Function is used to parse both attributes: |
|
1424 |
// LocalVariableTable (LVT) and LocalVariableTypeTable (LVTT) |
|
1425 |
u2* ClassFileParser::parse_localvariable_table(u4 code_length, |
|
1426 |
u2 max_locals, |
|
1427 |
u4 code_attribute_length, |
|
1428 |
constantPoolHandle cp, |
|
1429 |
u2* localvariable_table_length, |
|
1430 |
bool isLVTT, |
|
1431 |
TRAPS) { |
|
1432 |
ClassFileStream* cfs = stream(); |
|
1433 |
const char * tbl_name = (isLVTT) ? "LocalVariableTypeTable" : "LocalVariableTable"; |
|
1434 |
*localvariable_table_length = cfs->get_u2(CHECK_NULL); |
|
1435 |
unsigned int size = (*localvariable_table_length) * sizeof(Classfile_LVT_Element) / sizeof(u2); |
|
1436 |
// Verify local variable table attribute has right length |
|
1437 |
if (_need_verify) { |
|
1438 |
guarantee_property(code_attribute_length == (sizeof(*localvariable_table_length) + size * sizeof(u2)), |
|
1439 |
"%s has wrong length in class file %s", tbl_name, CHECK_NULL); |
|
1440 |
} |
|
1441 |
u2* localvariable_table_start = cfs->get_u2_buffer(); |
|
1442 |
assert(localvariable_table_start != NULL, "null local variable table"); |
|
1443 |
if (!_need_verify) { |
|
1444 |
cfs->skip_u2_fast(size); |
|
1445 |
} else { |
|
1446 |
cfs->guarantee_more(size * 2, CHECK_NULL); |
|
1447 |
for(int i = 0; i < (*localvariable_table_length); i++) { |
|
1448 |
u2 start_pc = cfs->get_u2_fast(); |
|
1449 |
u2 length = cfs->get_u2_fast(); |
|
1450 |
u2 name_index = cfs->get_u2_fast(); |
|
1451 |
u2 descriptor_index = cfs->get_u2_fast(); |
|
1452 |
u2 index = cfs->get_u2_fast(); |
|
1453 |
// Assign to a u4 to avoid overflow |
|
1454 |
u4 end_pc = (u4)start_pc + (u4)length; |
|
1455 |
||
1456 |
if (start_pc >= code_length) { |
|
1457 |
classfile_parse_error( |
|
1458 |
"Invalid start_pc %u in %s in class file %s", |
|
1459 |
start_pc, tbl_name, CHECK_NULL); |
|
1460 |
} |
|
1461 |
if (end_pc > code_length) { |
|
1462 |
classfile_parse_error( |
|
1463 |
"Invalid length %u in %s in class file %s", |
|
1464 |
length, tbl_name, CHECK_NULL); |
|
1465 |
} |
|
1466 |
int cp_size = cp->length(); |
|
1467 |
guarantee_property( |
|
1468 |
valid_cp_range(name_index, cp_size) && |
|
1469 |
cp->tag_at(name_index).is_utf8(), |
|
1470 |
"Name index %u in %s has bad constant type in class file %s", |
|
1471 |
name_index, tbl_name, CHECK_NULL); |
|
1472 |
guarantee_property( |
|
1473 |
valid_cp_range(descriptor_index, cp_size) && |
|
1474 |
cp->tag_at(descriptor_index).is_utf8(), |
|
1475 |
"Signature index %u in %s has bad constant type in class file %s", |
|
1476 |
descriptor_index, tbl_name, CHECK_NULL); |
|
1477 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1478 |
Symbol* name = cp->symbol_at(name_index); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1479 |
Symbol* sig = cp->symbol_at(descriptor_index); |
1 | 1480 |
verify_legal_field_name(name, CHECK_NULL); |
1481 |
u2 extra_slot = 0; |
|
1482 |
if (!isLVTT) { |
|
1483 |
verify_legal_field_signature(name, sig, CHECK_NULL); |
|
1484 |
||
1485 |
// 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
|
1486 |
if (sig == vmSymbols::type_signature(T_DOUBLE) || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1487 |
sig == vmSymbols::type_signature(T_LONG)) { |
1 | 1488 |
extra_slot = 1; |
1489 |
} |
|
1490 |
} |
|
1491 |
guarantee_property((index + extra_slot) < max_locals, |
|
1492 |
"Invalid index %u in %s in class file %s", |
|
1493 |
index, tbl_name, CHECK_NULL); |
|
1494 |
} |
|
1495 |
} |
|
1496 |
return localvariable_table_start; |
|
1497 |
} |
|
1498 |
||
1499 |
||
1500 |
void ClassFileParser::parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, |
|
1501 |
u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS) { |
|
1502 |
ClassFileStream* cfs = stream(); |
|
1503 |
u2 index = 0; // index in the array with long/double occupying two slots |
|
1504 |
u4 i1 = *u1_index; |
|
1505 |
u4 i2 = *u2_index + 1; |
|
1506 |
for(int i = 0; i < array_length; i++) { |
|
1507 |
u1 tag = u1_array[i1++] = cfs->get_u1(CHECK); |
|
1508 |
index++; |
|
1509 |
if (tag == ITEM_Long || tag == ITEM_Double) { |
|
1510 |
index++; |
|
1511 |
} else if (tag == ITEM_Object) { |
|
1512 |
u2 class_index = u2_array[i2++] = cfs->get_u2(CHECK); |
|
1513 |
guarantee_property(valid_cp_range(class_index, cp->length()) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
1514 |
is_klass_reference(cp, class_index), |
1 | 1515 |
"Bad class index %u in StackMap in class file %s", |
1516 |
class_index, CHECK); |
|
1517 |
} else if (tag == ITEM_Uninitialized) { |
|
1518 |
u2 offset = u2_array[i2++] = cfs->get_u2(CHECK); |
|
1519 |
guarantee_property( |
|
1520 |
offset < code_length, |
|
1521 |
"Bad uninitialized type offset %u in StackMap in class file %s", |
|
1522 |
offset, CHECK); |
|
1523 |
} else { |
|
1524 |
guarantee_property( |
|
1525 |
tag <= (u1)ITEM_Uninitialized, |
|
1526 |
"Unknown variable type %u in StackMap in class file %s", |
|
1527 |
tag, CHECK); |
|
1528 |
} |
|
1529 |
} |
|
1530 |
u2_array[*u2_index] = index; |
|
1531 |
*u1_index = i1; |
|
1532 |
*u2_index = i2; |
|
1533 |
} |
|
1534 |
||
1535 |
typeArrayOop ClassFileParser::parse_stackmap_table( |
|
1536 |
u4 code_attribute_length, TRAPS) { |
|
1537 |
if (code_attribute_length == 0) |
|
1538 |
return NULL; |
|
1539 |
||
1540 |
ClassFileStream* cfs = stream(); |
|
1541 |
u1* stackmap_table_start = cfs->get_u1_buffer(); |
|
1542 |
assert(stackmap_table_start != NULL, "null stackmap table"); |
|
1543 |
||
1544 |
// check code_attribute_length first |
|
1545 |
stream()->skip_u1(code_attribute_length, CHECK_NULL); |
|
1546 |
||
1547 |
if (!_need_verify && !DumpSharedSpaces) { |
|
1548 |
return NULL; |
|
1549 |
} |
|
1550 |
||
1551 |
typeArrayOop stackmap_data = |
|
1552 |
oopFactory::new_permanent_byteArray(code_attribute_length, CHECK_NULL); |
|
1553 |
||
1554 |
stackmap_data->set_length(code_attribute_length); |
|
1555 |
memcpy((void*)stackmap_data->byte_at_addr(0), |
|
1556 |
(void*)stackmap_table_start, code_attribute_length); |
|
1557 |
return stackmap_data; |
|
1558 |
} |
|
1559 |
||
1560 |
u2* ClassFileParser::parse_checked_exceptions(u2* checked_exceptions_length, |
|
1561 |
u4 method_attribute_length, |
|
1562 |
constantPoolHandle cp, TRAPS) { |
|
1563 |
ClassFileStream* cfs = stream(); |
|
1564 |
cfs->guarantee_more(2, CHECK_NULL); // checked_exceptions_length |
|
1565 |
*checked_exceptions_length = cfs->get_u2_fast(); |
|
1566 |
unsigned int size = (*checked_exceptions_length) * sizeof(CheckedExceptionElement) / sizeof(u2); |
|
1567 |
u2* checked_exceptions_start = cfs->get_u2_buffer(); |
|
1568 |
assert(checked_exceptions_start != NULL, "null checked exceptions"); |
|
1569 |
if (!_need_verify) { |
|
1570 |
cfs->skip_u2_fast(size); |
|
1571 |
} else { |
|
1572 |
// Verify each value in the checked exception table |
|
1573 |
u2 checked_exception; |
|
1574 |
u2 len = *checked_exceptions_length; |
|
1575 |
cfs->guarantee_more(2 * len, CHECK_NULL); |
|
1576 |
for (int i = 0; i < len; i++) { |
|
1577 |
checked_exception = cfs->get_u2_fast(); |
|
1578 |
check_property( |
|
1579 |
valid_cp_range(checked_exception, cp->length()) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
1580 |
is_klass_reference(cp, checked_exception), |
1 | 1581 |
"Exception name has bad type at constant pool %u in class file %s", |
1582 |
checked_exception, CHECK_NULL); |
|
1583 |
} |
|
1584 |
} |
|
1585 |
// check exceptions attribute length |
|
1586 |
if (_need_verify) { |
|
1587 |
guarantee_property(method_attribute_length == (sizeof(*checked_exceptions_length) + |
|
1588 |
sizeof(u2) * size), |
|
1589 |
"Exceptions attribute has wrong length in class file %s", CHECK_NULL); |
|
1590 |
} |
|
1591 |
return checked_exceptions_start; |
|
1592 |
} |
|
1593 |
||
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1594 |
void ClassFileParser::throwIllegalSignature( |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1595 |
const char* type, Symbol* name, Symbol* sig, TRAPS) { |
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1596 |
ResourceMark rm(THREAD); |
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
1597 |
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
|
1598 |
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
|
1599 |
"%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
|
1600 |
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
|
1601 |
} |
1 | 1602 |
|
1603 |
#define MAX_ARGS_SIZE 255 |
|
1604 |
#define MAX_CODE_SIZE 65535 |
|
1605 |
#define INITIAL_MAX_LVT_NUMBER 256 |
|
1606 |
||
1607 |
// Note: the parse_method below is big and clunky because all parsing of the code and exceptions |
|
1608 |
// attribute is inlined. This is curbersome to avoid since we inline most of the parts in the |
|
1609 |
// methodOop to save footprint, so we only know the size of the resulting methodOop when the |
|
1610 |
// entire method attribute is parsed. |
|
1611 |
// |
|
1612 |
// The promoted_flags parameter is used to pass relevant access_flags |
|
1613 |
// from the method back up to the containing klass. These flag values |
|
1614 |
// are added to klass's access_flags. |
|
1615 |
||
1616 |
methodHandle ClassFileParser::parse_method(constantPoolHandle cp, bool is_interface, |
|
1617 |
AccessFlags *promoted_flags, |
|
1618 |
typeArrayHandle* method_annotations, |
|
1619 |
typeArrayHandle* method_parameter_annotations, |
|
1620 |
typeArrayHandle* method_default_annotations, |
|
1621 |
TRAPS) { |
|
1622 |
ClassFileStream* cfs = stream(); |
|
1623 |
methodHandle nullHandle; |
|
1624 |
ResourceMark rm(THREAD); |
|
1625 |
// Parse fixed parts |
|
1626 |
cfs->guarantee_more(8, CHECK_(nullHandle)); // access_flags, name_index, descriptor_index, attributes_count |
|
1627 |
||
1628 |
int flags = cfs->get_u2_fast(); |
|
1629 |
u2 name_index = cfs->get_u2_fast(); |
|
1630 |
int cp_size = cp->length(); |
|
1631 |
check_property( |
|
1632 |
valid_cp_range(name_index, cp_size) && |
|
1633 |
cp->tag_at(name_index).is_utf8(), |
|
1634 |
"Illegal constant pool index %u for method name in class file %s", |
|
1635 |
name_index, CHECK_(nullHandle)); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1636 |
Symbol* name = cp->symbol_at(name_index); |
1 | 1637 |
verify_legal_method_name(name, CHECK_(nullHandle)); |
1638 |
||
1639 |
u2 signature_index = cfs->get_u2_fast(); |
|
1640 |
guarantee_property( |
|
1641 |
valid_cp_range(signature_index, cp_size) && |
|
1642 |
cp->tag_at(signature_index).is_utf8(), |
|
1643 |
"Illegal constant pool index %u for method signature in class file %s", |
|
1644 |
signature_index, CHECK_(nullHandle)); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1645 |
Symbol* signature = cp->symbol_at(signature_index); |
1 | 1646 |
|
1647 |
AccessFlags access_flags; |
|
1648 |
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
|
1649 |
// 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
|
1650 |
// (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
|
1651 |
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
|
1652 |
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
|
1653 |
} 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
|
1654 |
flags &= JVM_ACC_STATIC | JVM_ACC_STRICT; |
8797d788a4f1
6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents:
8296
diff
changeset
|
1655 |
} |
1 | 1656 |
} else { |
1657 |
verify_legal_method_modifiers(flags, is_interface, name, CHECK_(nullHandle)); |
|
1658 |
} |
|
1659 |
||
1660 |
int args_size = -1; // only used when _need_verify is true |
|
1661 |
if (_need_verify) { |
|
1662 |
args_size = ((flags & JVM_ACC_STATIC) ? 0 : 1) + |
|
1663 |
verify_legal_method_signature(name, signature, CHECK_(nullHandle)); |
|
1664 |
if (args_size > MAX_ARGS_SIZE) { |
|
1665 |
classfile_parse_error("Too many arguments in method signature in class file %s", CHECK_(nullHandle)); |
|
1666 |
} |
|
1667 |
} |
|
1668 |
||
1669 |
access_flags.set_flags(flags & JVM_RECOGNIZED_METHOD_MODIFIERS); |
|
1670 |
||
1671 |
// Default values for code and exceptions attribute elements |
|
1672 |
u2 max_stack = 0; |
|
1673 |
u2 max_locals = 0; |
|
1674 |
u4 code_length = 0; |
|
1675 |
u1* code_start = 0; |
|
1676 |
u2 exception_table_length = 0; |
|
1677 |
typeArrayHandle exception_handlers(THREAD, Universe::the_empty_int_array()); |
|
1678 |
u2 checked_exceptions_length = 0; |
|
1679 |
u2* checked_exceptions_start = NULL; |
|
1680 |
CompressedLineNumberWriteStream* linenumber_table = NULL; |
|
1681 |
int linenumber_table_length = 0; |
|
1682 |
int total_lvt_length = 0; |
|
1683 |
u2 lvt_cnt = 0; |
|
1684 |
u2 lvtt_cnt = 0; |
|
1685 |
bool lvt_allocated = false; |
|
1686 |
u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER; |
|
1687 |
u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER; |
|
1688 |
u2* localvariable_table_length; |
|
1689 |
u2** localvariable_table_start; |
|
1690 |
u2* localvariable_type_table_length; |
|
1691 |
u2** localvariable_type_table_start; |
|
1692 |
bool parsed_code_attribute = false; |
|
1693 |
bool parsed_checked_exceptions_attribute = false; |
|
1694 |
bool parsed_stackmap_attribute = false; |
|
1695 |
// stackmap attribute - JDK1.5 |
|
1696 |
typeArrayHandle stackmap_data; |
|
1697 |
u2 generic_signature_index = 0; |
|
1698 |
u1* runtime_visible_annotations = NULL; |
|
1699 |
int runtime_visible_annotations_length = 0; |
|
1700 |
u1* runtime_invisible_annotations = NULL; |
|
1701 |
int runtime_invisible_annotations_length = 0; |
|
1702 |
u1* runtime_visible_parameter_annotations = NULL; |
|
1703 |
int runtime_visible_parameter_annotations_length = 0; |
|
1704 |
u1* runtime_invisible_parameter_annotations = NULL; |
|
1705 |
int runtime_invisible_parameter_annotations_length = 0; |
|
1706 |
u1* annotation_default = NULL; |
|
1707 |
int annotation_default_length = 0; |
|
1708 |
||
1709 |
// Parse code and exceptions attribute |
|
1710 |
u2 method_attributes_count = cfs->get_u2_fast(); |
|
1711 |
while (method_attributes_count--) { |
|
1712 |
cfs->guarantee_more(6, CHECK_(nullHandle)); // method_attribute_name_index, method_attribute_length |
|
1713 |
u2 method_attribute_name_index = cfs->get_u2_fast(); |
|
1714 |
u4 method_attribute_length = cfs->get_u4_fast(); |
|
1715 |
check_property( |
|
1716 |
valid_cp_range(method_attribute_name_index, cp_size) && |
|
1717 |
cp->tag_at(method_attribute_name_index).is_utf8(), |
|
1718 |
"Invalid method attribute name index %u in class file %s", |
|
1719 |
method_attribute_name_index, CHECK_(nullHandle)); |
|
1720 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
1721 |
Symbol* method_attribute_name = cp->symbol_at(method_attribute_name_index); |
1 | 1722 |
if (method_attribute_name == vmSymbols::tag_code()) { |
1723 |
// Parse Code attribute |
|
1724 |
if (_need_verify) { |
|
1725 |
guarantee_property(!access_flags.is_native() && !access_flags.is_abstract(), |
|
1726 |
"Code attribute in native or abstract methods in class file %s", |
|
1727 |
CHECK_(nullHandle)); |
|
1728 |
} |
|
1729 |
if (parsed_code_attribute) { |
|
1730 |
classfile_parse_error("Multiple Code attributes in class file %s", CHECK_(nullHandle)); |
|
1731 |
} |
|
1732 |
parsed_code_attribute = true; |
|
1733 |
||
1734 |
// Stack size, locals size, and code size |
|
1735 |
if (_major_version == 45 && _minor_version <= 2) { |
|
1736 |
cfs->guarantee_more(4, CHECK_(nullHandle)); |
|
1737 |
max_stack = cfs->get_u1_fast(); |
|
1738 |
max_locals = cfs->get_u1_fast(); |
|
1739 |
code_length = cfs->get_u2_fast(); |
|
1740 |
} else { |
|
1741 |
cfs->guarantee_more(8, CHECK_(nullHandle)); |
|
1742 |
max_stack = cfs->get_u2_fast(); |
|
1743 |
max_locals = cfs->get_u2_fast(); |
|
1744 |
code_length = cfs->get_u4_fast(); |
|
1745 |
} |
|
1746 |
if (_need_verify) { |
|
1747 |
guarantee_property(args_size <= max_locals, |
|
1748 |
"Arguments can't fit into locals in class file %s", CHECK_(nullHandle)); |
|
1749 |
guarantee_property(code_length > 0 && code_length <= MAX_CODE_SIZE, |
|
1750 |
"Invalid method Code length %u in class file %s", |
|
1751 |
code_length, CHECK_(nullHandle)); |
|
1752 |
} |
|
1753 |
// Code pointer |
|
1754 |
code_start = cfs->get_u1_buffer(); |
|
1755 |
assert(code_start != NULL, "null code start"); |
|
1756 |
cfs->guarantee_more(code_length, CHECK_(nullHandle)); |
|
1757 |
cfs->skip_u1_fast(code_length); |
|
1758 |
||
1759 |
// Exception handler table |
|
1760 |
cfs->guarantee_more(2, CHECK_(nullHandle)); // exception_table_length |
|
1761 |
exception_table_length = cfs->get_u2_fast(); |
|
1762 |
if (exception_table_length > 0) { |
|
1763 |
exception_handlers = |
|
1764 |
parse_exception_table(code_length, exception_table_length, cp, CHECK_(nullHandle)); |
|
1765 |
} |
|
1766 |
||
1767 |
// Parse additional attributes in code attribute |
|
1768 |
cfs->guarantee_more(2, CHECK_(nullHandle)); // code_attributes_count |
|
1769 |
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
|
1770 |
|
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1771 |
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
|
1772 |
|
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1773 |
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
|
1774 |
calculated_attribute_length = |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1775 |
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
|
1776 |
} else { |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1777 |
// 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
|
1778 |
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
|
1779 |
} |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1780 |
calculated_attribute_length += |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1781 |
code_length + |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1782 |
sizeof(exception_table_length) + |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1783 |
sizeof(code_attributes_count) + |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1784 |
exception_table_length * |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1785 |
( sizeof(u2) + // start_pc |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1786 |
sizeof(u2) + // end_pc |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1787 |
sizeof(u2) + // handler_pc |
2d9c1e9e9f98
6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents:
1
diff
changeset
|
1788 |
sizeof(u2) ); // catch_type_index |
1 | 1789 |
|
1790 |
while (code_attributes_count--) { |
|
1791 |
cfs->guarantee_more(6, CHECK_(nullHandle)); // code_attribute_name_index, code_attribute_length |
|
1792 |
u2 code_attribute_name_index = cfs->get_u2_fast(); |
|
1793 |
u4 code_attribute_length = cfs->get_u4_fast(); |
|
1794 |
calculated_attribute_length += code_attribute_length + |
|
1795 |
sizeof(code_attribute_name_index) + |
|
1796 |
sizeof(code_attribute_length); |
|
1797 |
check_property(valid_cp_range(code_attribute_name_index, cp_size) && |
|
1798 |
cp->tag_at(code_attribute_name_index).is_utf8(), |
|
1799 |
"Invalid code attribute name index %u in class file %s", |
|
1800 |
code_attribute_name_index, |
|
1801 |
CHECK_(nullHandle)); |
|
1802 |
if (LoadLineNumberTables && |
|
1803 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_line_number_table()) { |
|
1804 |
// Parse and compress line number table |
|
1805 |
parse_linenumber_table(code_attribute_length, code_length, |
|
1806 |
&linenumber_table, CHECK_(nullHandle)); |
|
1807 |
||
1808 |
} else if (LoadLocalVariableTables && |
|
1809 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_table()) { |
|
1810 |
// Parse local variable table |
|
1811 |
if (!lvt_allocated) { |
|
1812 |
localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1813 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
1814 |
localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1815 |
THREAD, u2*, INITIAL_MAX_LVT_NUMBER); |
|
1816 |
localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1817 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
1818 |
localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1819 |
THREAD, u2*, INITIAL_MAX_LVT_NUMBER); |
|
1820 |
lvt_allocated = true; |
|
1821 |
} |
|
1822 |
if (lvt_cnt == max_lvt_cnt) { |
|
1823 |
max_lvt_cnt <<= 1; |
|
1824 |
REALLOC_RESOURCE_ARRAY(u2, localvariable_table_length, lvt_cnt, max_lvt_cnt); |
|
1825 |
REALLOC_RESOURCE_ARRAY(u2*, localvariable_table_start, lvt_cnt, max_lvt_cnt); |
|
1826 |
} |
|
1827 |
localvariable_table_start[lvt_cnt] = |
|
1828 |
parse_localvariable_table(code_length, |
|
1829 |
max_locals, |
|
1830 |
code_attribute_length, |
|
1831 |
cp, |
|
1832 |
&localvariable_table_length[lvt_cnt], |
|
1833 |
false, // is not LVTT |
|
1834 |
CHECK_(nullHandle)); |
|
1835 |
total_lvt_length += localvariable_table_length[lvt_cnt]; |
|
1836 |
lvt_cnt++; |
|
1837 |
} else if (LoadLocalVariableTypeTables && |
|
1838 |
_major_version >= JAVA_1_5_VERSION && |
|
1839 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_type_table()) { |
|
1840 |
if (!lvt_allocated) { |
|
1841 |
localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1842 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
1843 |
localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1844 |
THREAD, u2*, INITIAL_MAX_LVT_NUMBER); |
|
1845 |
localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1846 |
THREAD, u2, INITIAL_MAX_LVT_NUMBER); |
|
1847 |
localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
1848 |
THREAD, u2*, INITIAL_MAX_LVT_NUMBER); |
|
1849 |
lvt_allocated = true; |
|
1850 |
} |
|
1851 |
// Parse local variable type table |
|
1852 |
if (lvtt_cnt == max_lvtt_cnt) { |
|
1853 |
max_lvtt_cnt <<= 1; |
|
1854 |
REALLOC_RESOURCE_ARRAY(u2, localvariable_type_table_length, lvtt_cnt, max_lvtt_cnt); |
|
1855 |
REALLOC_RESOURCE_ARRAY(u2*, localvariable_type_table_start, lvtt_cnt, max_lvtt_cnt); |
|
1856 |
} |
|
1857 |
localvariable_type_table_start[lvtt_cnt] = |
|
1858 |
parse_localvariable_table(code_length, |
|
1859 |
max_locals, |
|
1860 |
code_attribute_length, |
|
1861 |
cp, |
|
1862 |
&localvariable_type_table_length[lvtt_cnt], |
|
1863 |
true, // is LVTT |
|
1864 |
CHECK_(nullHandle)); |
|
1865 |
lvtt_cnt++; |
|
1866 |
} else if (UseSplitVerifier && |
|
1867 |
_major_version >= Verifier::STACKMAP_ATTRIBUTE_MAJOR_VERSION && |
|
1868 |
cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_stack_map_table()) { |
|
1869 |
// Stack map is only needed by the new verifier in JDK1.5. |
|
1870 |
if (parsed_stackmap_attribute) { |
|
1871 |
classfile_parse_error("Multiple StackMapTable attributes in class file %s", CHECK_(nullHandle)); |
|
1872 |
} |
|
1873 |
typeArrayOop sm = |
|
1874 |
parse_stackmap_table(code_attribute_length, CHECK_(nullHandle)); |
|
1875 |
stackmap_data = typeArrayHandle(THREAD, sm); |
|
1876 |
parsed_stackmap_attribute = true; |
|
1877 |
} else { |
|
1878 |
// Skip unknown attributes |
|
1879 |
cfs->skip_u1(code_attribute_length, CHECK_(nullHandle)); |
|
1880 |
} |
|
1881 |
} |
|
1882 |
// check method attribute length |
|
1883 |
if (_need_verify) { |
|
1884 |
guarantee_property(method_attribute_length == calculated_attribute_length, |
|
1885 |
"Code segment has wrong length in class file %s", CHECK_(nullHandle)); |
|
1886 |
} |
|
1887 |
} else if (method_attribute_name == vmSymbols::tag_exceptions()) { |
|
1888 |
// Parse Exceptions attribute |
|
1889 |
if (parsed_checked_exceptions_attribute) { |
|
1890 |
classfile_parse_error("Multiple Exceptions attributes in class file %s", CHECK_(nullHandle)); |
|
1891 |
} |
|
1892 |
parsed_checked_exceptions_attribute = true; |
|
1893 |
checked_exceptions_start = |
|
1894 |
parse_checked_exceptions(&checked_exceptions_length, |
|
1895 |
method_attribute_length, |
|
1896 |
cp, CHECK_(nullHandle)); |
|
1897 |
} else if (method_attribute_name == vmSymbols::tag_synthetic()) { |
|
1898 |
if (method_attribute_length != 0) { |
|
1899 |
classfile_parse_error( |
|
1900 |
"Invalid Synthetic method attribute length %u in class file %s", |
|
1901 |
method_attribute_length, CHECK_(nullHandle)); |
|
1902 |
} |
|
1903 |
// Should we check that there hasn't already been a synthetic attribute? |
|
1904 |
access_flags.set_is_synthetic(); |
|
1905 |
} else if (method_attribute_name == vmSymbols::tag_deprecated()) { // 4276120 |
|
1906 |
if (method_attribute_length != 0) { |
|
1907 |
classfile_parse_error( |
|
1908 |
"Invalid Deprecated method attribute length %u in class file %s", |
|
1909 |
method_attribute_length, CHECK_(nullHandle)); |
|
1910 |
} |
|
1911 |
} else if (_major_version >= JAVA_1_5_VERSION) { |
|
1912 |
if (method_attribute_name == vmSymbols::tag_signature()) { |
|
1913 |
if (method_attribute_length != 2) { |
|
1914 |
classfile_parse_error( |
|
1915 |
"Invalid Signature attribute length %u in class file %s", |
|
1916 |
method_attribute_length, CHECK_(nullHandle)); |
|
1917 |
} |
|
1918 |
cfs->guarantee_more(2, CHECK_(nullHandle)); // generic_signature_index |
|
1919 |
generic_signature_index = cfs->get_u2_fast(); |
|
1920 |
} else if (method_attribute_name == vmSymbols::tag_runtime_visible_annotations()) { |
|
1921 |
runtime_visible_annotations_length = method_attribute_length; |
|
1922 |
runtime_visible_annotations = cfs->get_u1_buffer(); |
|
1923 |
assert(runtime_visible_annotations != NULL, "null visible annotations"); |
|
1924 |
cfs->skip_u1(runtime_visible_annotations_length, CHECK_(nullHandle)); |
|
1925 |
} else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_annotations()) { |
|
1926 |
runtime_invisible_annotations_length = method_attribute_length; |
|
1927 |
runtime_invisible_annotations = cfs->get_u1_buffer(); |
|
1928 |
assert(runtime_invisible_annotations != NULL, "null invisible annotations"); |
|
1929 |
cfs->skip_u1(runtime_invisible_annotations_length, CHECK_(nullHandle)); |
|
1930 |
} else if (method_attribute_name == vmSymbols::tag_runtime_visible_parameter_annotations()) { |
|
1931 |
runtime_visible_parameter_annotations_length = method_attribute_length; |
|
1932 |
runtime_visible_parameter_annotations = cfs->get_u1_buffer(); |
|
1933 |
assert(runtime_visible_parameter_annotations != NULL, "null visible parameter annotations"); |
|
1934 |
cfs->skip_u1(runtime_visible_parameter_annotations_length, CHECK_(nullHandle)); |
|
1935 |
} else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_parameter_annotations()) { |
|
1936 |
runtime_invisible_parameter_annotations_length = method_attribute_length; |
|
1937 |
runtime_invisible_parameter_annotations = cfs->get_u1_buffer(); |
|
1938 |
assert(runtime_invisible_parameter_annotations != NULL, "null invisible parameter annotations"); |
|
1939 |
cfs->skip_u1(runtime_invisible_parameter_annotations_length, CHECK_(nullHandle)); |
|
1940 |
} else if (method_attribute_name == vmSymbols::tag_annotation_default()) { |
|
1941 |
annotation_default_length = method_attribute_length; |
|
1942 |
annotation_default = cfs->get_u1_buffer(); |
|
1943 |
assert(annotation_default != NULL, "null annotation default"); |
|
1944 |
cfs->skip_u1(annotation_default_length, CHECK_(nullHandle)); |
|
1945 |
} else { |
|
1946 |
// Skip unknown attributes |
|
1947 |
cfs->skip_u1(method_attribute_length, CHECK_(nullHandle)); |
|
1948 |
} |
|
1949 |
} else { |
|
1950 |
// Skip unknown attributes |
|
1951 |
cfs->skip_u1(method_attribute_length, CHECK_(nullHandle)); |
|
1952 |
} |
|
1953 |
} |
|
1954 |
||
1955 |
if (linenumber_table != NULL) { |
|
1956 |
linenumber_table->write_terminator(); |
|
1957 |
linenumber_table_length = linenumber_table->position(); |
|
1958 |
} |
|
1959 |
||
1960 |
// Make sure there's at least one Code attribute in non-native/non-abstract method |
|
1961 |
if (_need_verify) { |
|
1962 |
guarantee_property(access_flags.is_native() || access_flags.is_abstract() || parsed_code_attribute, |
|
1963 |
"Absent Code attribute in method that is not native or abstract in class file %s", CHECK_(nullHandle)); |
|
1964 |
} |
|
1965 |
||
1966 |
// All sizing information for a methodOop is finally available, now create it |
|
8296
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1967 |
methodOop m_oop = oopFactory::new_method(code_length, access_flags, linenumber_table_length, |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1968 |
total_lvt_length, checked_exceptions_length, |
b1c2163e4e59
6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents:
8076
diff
changeset
|
1969 |
oopDesc::IsSafeConc, CHECK_(nullHandle)); |
1 | 1970 |
methodHandle m (THREAD, m_oop); |
1971 |
||
1972 |
ClassLoadingService::add_class_method_size(m_oop->size()*HeapWordSize); |
|
1973 |
||
1974 |
// Fill in information from fixed part (access_flags already set) |
|
1975 |
m->set_constants(cp()); |
|
1976 |
m->set_name_index(name_index); |
|
1977 |
m->set_signature_index(signature_index); |
|
1978 |
m->set_generic_signature_index(generic_signature_index); |
|
1979 |
#ifdef CC_INTERP |
|
1980 |
// hmm is there a gc issue here?? |
|
1981 |
ResultTypeFinder rtf(cp->symbol_at(signature_index)); |
|
1982 |
m->set_result_index(rtf.type()); |
|
1983 |
#endif |
|
1984 |
||
1985 |
if (args_size >= 0) { |
|
1986 |
m->set_size_of_parameters(args_size); |
|
1987 |
} else { |
|
1988 |
m->compute_size_of_parameters(THREAD); |
|
1989 |
} |
|
1990 |
#ifdef ASSERT |
|
1991 |
if (args_size >= 0) { |
|
1992 |
m->compute_size_of_parameters(THREAD); |
|
1993 |
assert(args_size == m->size_of_parameters(), ""); |
|
1994 |
} |
|
1995 |
#endif |
|
1996 |
||
1997 |
// Fill in code attribute information |
|
1998 |
m->set_max_stack(max_stack); |
|
1999 |
m->set_max_locals(max_locals); |
|
2000 |
m->constMethod()->set_stackmap_data(stackmap_data()); |
|
2001 |
||
2002 |
/** |
|
2003 |
* The exception_table field is the flag used to indicate |
|
2004 |
* that the methodOop and it's associated constMethodOop are partially |
|
2005 |
* initialized and thus are exempt from pre/post GC verification. Once |
|
2006 |
* the field is set, the oops are considered fully initialized so make |
|
2007 |
* sure that the oops can pass verification when this field is set. |
|
2008 |
*/ |
|
2009 |
m->set_exception_table(exception_handlers()); |
|
2010 |
||
2011 |
// Copy byte codes |
|
4567
7fc02fbe5c7a
6893268: additional dynamic language related optimizations in C2
twisti
parents:
4478
diff
changeset
|
2012 |
m->set_code(code_start); |
1 | 2013 |
|
2014 |
// Copy line number table |
|
2015 |
if (linenumber_table != NULL) { |
|
2016 |
memcpy(m->compressed_linenumber_table(), |
|
2017 |
linenumber_table->buffer(), linenumber_table_length); |
|
2018 |
} |
|
2019 |
||
2020 |
// Copy checked exceptions |
|
2021 |
if (checked_exceptions_length > 0) { |
|
2022 |
int size = checked_exceptions_length * sizeof(CheckedExceptionElement) / sizeof(u2); |
|
2023 |
copy_u2_with_conversion((u2*) m->checked_exceptions_start(), checked_exceptions_start, size); |
|
2024 |
} |
|
2025 |
||
2026 |
/* Copy class file LVT's/LVTT's into the HotSpot internal LVT. |
|
2027 |
* |
|
2028 |
* Rules for LVT's and LVTT's are: |
|
2029 |
* - There can be any number of LVT's and LVTT's. |
|
2030 |
* - If there are n LVT's, it is the same as if there was just |
|
2031 |
* one LVT containing all the entries from the n LVT's. |
|
2032 |
* - There may be no more than one LVT entry per local variable. |
|
2033 |
* Two LVT entries are 'equal' if these fields are the same: |
|
2034 |
* start_pc, length, name, slot |
|
2035 |
* - There may be no more than one LVTT entry per each LVT entry. |
|
2036 |
* Each LVTT entry has to match some LVT entry. |
|
2037 |
* - HotSpot internal LVT keeps natural ordering of class file LVT entries. |
|
2038 |
*/ |
|
2039 |
if (total_lvt_length > 0) { |
|
2040 |
int tbl_no, idx; |
|
2041 |
||
2042 |
promoted_flags->set_has_localvariable_table(); |
|
2043 |
||
2044 |
LVT_Hash** lvt_Hash = NEW_RESOURCE_ARRAY(LVT_Hash*, HASH_ROW_SIZE); |
|
2045 |
initialize_hashtable(lvt_Hash); |
|
2046 |
||
2047 |
// To fill LocalVariableTable in |
|
2048 |
Classfile_LVT_Element* cf_lvt; |
|
2049 |
LocalVariableTableElement* lvt = m->localvariable_table_start(); |
|
2050 |
||
2051 |
for (tbl_no = 0; tbl_no < lvt_cnt; tbl_no++) { |
|
2052 |
cf_lvt = (Classfile_LVT_Element *) localvariable_table_start[tbl_no]; |
|
2053 |
for (idx = 0; idx < localvariable_table_length[tbl_no]; idx++, lvt++) { |
|
2054 |
copy_lvt_element(&cf_lvt[idx], lvt); |
|
2055 |
// If no duplicates, add LVT elem in hashtable lvt_Hash. |
|
2056 |
if (LVT_put_after_lookup(lvt, lvt_Hash) == false |
|
2057 |
&& _need_verify |
|
2058 |
&& _major_version >= JAVA_1_5_VERSION ) { |
|
2059 |
clear_hashtable(lvt_Hash); |
|
2060 |
classfile_parse_error("Duplicated LocalVariableTable attribute " |
|
2061 |
"entry for '%s' in class file %s", |
|
2062 |
cp->symbol_at(lvt->name_cp_index)->as_utf8(), |
|
2063 |
CHECK_(nullHandle)); |
|
2064 |
} |
|
2065 |
} |
|
2066 |
} |
|
2067 |
||
2068 |
// To merge LocalVariableTable and LocalVariableTypeTable |
|
2069 |
Classfile_LVT_Element* cf_lvtt; |
|
2070 |
LocalVariableTableElement lvtt_elem; |
|
2071 |
||
2072 |
for (tbl_no = 0; tbl_no < lvtt_cnt; tbl_no++) { |
|
2073 |
cf_lvtt = (Classfile_LVT_Element *) localvariable_type_table_start[tbl_no]; |
|
2074 |
for (idx = 0; idx < localvariable_type_table_length[tbl_no]; idx++) { |
|
2075 |
copy_lvt_element(&cf_lvtt[idx], &lvtt_elem); |
|
2076 |
int index = hash(&lvtt_elem); |
|
2077 |
LVT_Hash* entry = LVT_lookup(&lvtt_elem, index, lvt_Hash); |
|
2078 |
if (entry == NULL) { |
|
2079 |
if (_need_verify) { |
|
2080 |
clear_hashtable(lvt_Hash); |
|
2081 |
classfile_parse_error("LVTT entry for '%s' in class file %s " |
|
2082 |
"does not match any LVT entry", |
|
2083 |
cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(), |
|
2084 |
CHECK_(nullHandle)); |
|
2085 |
} |
|
2086 |
} else if (entry->_elem->signature_cp_index != 0 && _need_verify) { |
|
2087 |
clear_hashtable(lvt_Hash); |
|
2088 |
classfile_parse_error("Duplicated LocalVariableTypeTable attribute " |
|
2089 |
"entry for '%s' in class file %s", |
|
2090 |
cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(), |
|
2091 |
CHECK_(nullHandle)); |
|
2092 |
} else { |
|
2093 |
// to add generic signatures into LocalVariableTable |
|
2094 |
entry->_elem->signature_cp_index = lvtt_elem.descriptor_cp_index; |
|
2095 |
} |
|
2096 |
} |
|
2097 |
} |
|
2098 |
clear_hashtable(lvt_Hash); |
|
2099 |
} |
|
2100 |
||
2101 |
*method_annotations = assemble_annotations(runtime_visible_annotations, |
|
2102 |
runtime_visible_annotations_length, |
|
2103 |
runtime_invisible_annotations, |
|
2104 |
runtime_invisible_annotations_length, |
|
2105 |
CHECK_(nullHandle)); |
|
2106 |
*method_parameter_annotations = assemble_annotations(runtime_visible_parameter_annotations, |
|
2107 |
runtime_visible_parameter_annotations_length, |
|
2108 |
runtime_invisible_parameter_annotations, |
|
2109 |
runtime_invisible_parameter_annotations_length, |
|
2110 |
CHECK_(nullHandle)); |
|
2111 |
*method_default_annotations = assemble_annotations(annotation_default, |
|
2112 |
annotation_default_length, |
|
2113 |
NULL, |
|
2114 |
0, |
|
2115 |
CHECK_(nullHandle)); |
|
2116 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2117 |
if (name == vmSymbols::finalize_method_name() && |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2118 |
signature == vmSymbols::void_method_signature()) { |
1 | 2119 |
if (m->is_empty_method()) { |
2120 |
_has_empty_finalizer = true; |
|
2121 |
} else { |
|
2122 |
_has_finalizer = true; |
|
2123 |
} |
|
2124 |
} |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2125 |
if (name == vmSymbols::object_initializer_name() && |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2126 |
signature == vmSymbols::void_method_signature() && |
1 | 2127 |
m->is_vanilla_constructor()) { |
2128 |
_has_vanilla_constructor = true; |
|
2129 |
} |
|
2130 |
||
8883
5569135acca3
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
8725
diff
changeset
|
2131 |
if (EnableInvokeDynamic && (m->is_method_handle_invoke() || |
5420
586d3988e72b
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
5250
diff
changeset
|
2132 |
m->is_method_handle_adapter())) { |
2534 | 2133 |
THROW_MSG_(vmSymbols::java_lang_VirtualMachineError(), |
2134 |
"Method handle invokers must be defined internally to the VM", nullHandle); |
|
2135 |
} |
|
2136 |
||
1 | 2137 |
return m; |
2138 |
} |
|
2139 |
||
2140 |
||
2141 |
// The promoted_flags parameter is used to pass relevant access_flags |
|
2142 |
// from the methods back up to the containing klass. These flag values |
|
2143 |
// are added to klass's access_flags. |
|
2144 |
||
2145 |
objArrayHandle ClassFileParser::parse_methods(constantPoolHandle cp, bool is_interface, |
|
2146 |
AccessFlags* promoted_flags, |
|
2147 |
bool* has_final_method, |
|
2148 |
objArrayOop* methods_annotations_oop, |
|
2149 |
objArrayOop* methods_parameter_annotations_oop, |
|
2150 |
objArrayOop* methods_default_annotations_oop, |
|
2151 |
TRAPS) { |
|
2152 |
ClassFileStream* cfs = stream(); |
|
2153 |
objArrayHandle nullHandle; |
|
2154 |
typeArrayHandle method_annotations; |
|
2155 |
typeArrayHandle method_parameter_annotations; |
|
2156 |
typeArrayHandle method_default_annotations; |
|
2157 |
cfs->guarantee_more(2, CHECK_(nullHandle)); // length |
|
2158 |
u2 length = cfs->get_u2_fast(); |
|
2159 |
if (length == 0) { |
|
2160 |
return objArrayHandle(THREAD, Universe::the_empty_system_obj_array()); |
|
2161 |
} else { |
|
2162 |
objArrayOop m = oopFactory::new_system_objArray(length, CHECK_(nullHandle)); |
|
2163 |
objArrayHandle methods(THREAD, m); |
|
2164 |
HandleMark hm(THREAD); |
|
2165 |
objArrayHandle methods_annotations; |
|
2166 |
objArrayHandle methods_parameter_annotations; |
|
2167 |
objArrayHandle methods_default_annotations; |
|
2168 |
for (int index = 0; index < length; index++) { |
|
2169 |
methodHandle method = parse_method(cp, is_interface, |
|
2170 |
promoted_flags, |
|
2171 |
&method_annotations, |
|
2172 |
&method_parameter_annotations, |
|
2173 |
&method_default_annotations, |
|
2174 |
CHECK_(nullHandle)); |
|
2175 |
if (method->is_final()) { |
|
2176 |
*has_final_method = true; |
|
2177 |
} |
|
2178 |
methods->obj_at_put(index, method()); |
|
2179 |
if (method_annotations.not_null()) { |
|
2180 |
if (methods_annotations.is_null()) { |
|
2181 |
objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle)); |
|
2182 |
methods_annotations = objArrayHandle(THREAD, md); |
|
2183 |
} |
|
2184 |
methods_annotations->obj_at_put(index, method_annotations()); |
|
2185 |
} |
|
2186 |
if (method_parameter_annotations.not_null()) { |
|
2187 |
if (methods_parameter_annotations.is_null()) { |
|
2188 |
objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle)); |
|
2189 |
methods_parameter_annotations = objArrayHandle(THREAD, md); |
|
2190 |
} |
|
2191 |
methods_parameter_annotations->obj_at_put(index, method_parameter_annotations()); |
|
2192 |
} |
|
2193 |
if (method_default_annotations.not_null()) { |
|
2194 |
if (methods_default_annotations.is_null()) { |
|
2195 |
objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle)); |
|
2196 |
methods_default_annotations = objArrayHandle(THREAD, md); |
|
2197 |
} |
|
2198 |
methods_default_annotations->obj_at_put(index, method_default_annotations()); |
|
2199 |
} |
|
2200 |
} |
|
2201 |
if (_need_verify && length > 1) { |
|
2202 |
// Check duplicated methods |
|
2203 |
ResourceMark rm(THREAD); |
|
2204 |
NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
2205 |
THREAD, NameSigHash*, HASH_ROW_SIZE); |
|
2206 |
initialize_hashtable(names_and_sigs); |
|
2207 |
bool dup = false; |
|
2208 |
{ |
|
2209 |
debug_only(No_Safepoint_Verifier nsv;) |
|
2210 |
for (int i = 0; i < length; i++) { |
|
2211 |
methodOop m = (methodOop)methods->obj_at(i); |
|
2212 |
// If no duplicates, add name/signature in hashtable names_and_sigs. |
|
2213 |
if (!put_after_lookup(m->name(), m->signature(), names_and_sigs)) { |
|
2214 |
dup = true; |
|
2215 |
break; |
|
2216 |
} |
|
2217 |
} |
|
2218 |
} |
|
2219 |
if (dup) { |
|
2220 |
classfile_parse_error("Duplicate method name&signature in class file %s", |
|
2221 |
CHECK_(nullHandle)); |
|
2222 |
} |
|
2223 |
} |
|
2224 |
||
2225 |
*methods_annotations_oop = methods_annotations(); |
|
2226 |
*methods_parameter_annotations_oop = methods_parameter_annotations(); |
|
2227 |
*methods_default_annotations_oop = methods_default_annotations(); |
|
2228 |
||
2229 |
return methods; |
|
2230 |
} |
|
2231 |
} |
|
2232 |
||
2233 |
||
2234 |
typeArrayHandle ClassFileParser::sort_methods(objArrayHandle methods, |
|
2235 |
objArrayHandle methods_annotations, |
|
2236 |
objArrayHandle methods_parameter_annotations, |
|
2237 |
objArrayHandle methods_default_annotations, |
|
2238 |
TRAPS) { |
|
2239 |
typeArrayHandle nullHandle; |
|
2240 |
int length = methods()->length(); |
|
9172
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2241 |
// If JVMTI original method ordering or sharing is enabled we have to |
1 | 2242 |
// remember the original class file ordering. |
2243 |
// We temporarily use the vtable_index field in the methodOop to store the |
|
2244 |
// 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
|
2245 |
// Put the method ordering in the shared archive. |
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2246 |
if (JvmtiExport::can_maintain_original_method_order() || DumpSharedSpaces) { |
1 | 2247 |
for (int index = 0; index < length; index++) { |
2248 |
methodOop m = methodOop(methods->obj_at(index)); |
|
2249 |
assert(!m->valid_vtable_index(), "vtable index should not be set"); |
|
2250 |
m->set_vtable_index(index); |
|
2251 |
} |
|
2252 |
} |
|
2253 |
// 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
|
2254 |
// Note that the ordering is not alphabetical, see Symbol::fast_compare |
1 | 2255 |
methodOopDesc::sort_methods(methods(), |
2256 |
methods_annotations(), |
|
2257 |
methods_parameter_annotations(), |
|
2258 |
methods_default_annotations()); |
|
2259 |
||
9172
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2260 |
// 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
|
2261 |
// array remembering the original ordering |
a4e13ccafc44
7032407: Crash in LinkResolver::runtime_resolve_virtual_method()
coleenp
parents:
9117
diff
changeset
|
2262 |
if (JvmtiExport::can_maintain_original_method_order() || DumpSharedSpaces) { |
1 | 2263 |
typeArrayOop new_ordering = oopFactory::new_permanent_intArray(length, CHECK_(nullHandle)); |
2264 |
typeArrayHandle method_ordering(THREAD, new_ordering); |
|
2265 |
for (int index = 0; index < length; index++) { |
|
2266 |
methodOop m = methodOop(methods->obj_at(index)); |
|
2267 |
int old_index = m->vtable_index(); |
|
2268 |
assert(old_index >= 0 && old_index < length, "invalid method index"); |
|
2269 |
method_ordering->int_at_put(index, old_index); |
|
2270 |
m->set_vtable_index(methodOopDesc::invalid_vtable_index); |
|
2271 |
} |
|
2272 |
return method_ordering; |
|
2273 |
} else { |
|
2274 |
return typeArrayHandle(THREAD, Universe::the_empty_int_array()); |
|
2275 |
} |
|
2276 |
} |
|
2277 |
||
2278 |
||
2279 |
void ClassFileParser::parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) { |
|
2280 |
ClassFileStream* cfs = stream(); |
|
2281 |
cfs->guarantee_more(2, CHECK); // sourcefile_index |
|
2282 |
u2 sourcefile_index = cfs->get_u2_fast(); |
|
2283 |
check_property( |
|
2284 |
valid_cp_range(sourcefile_index, cp->length()) && |
|
2285 |
cp->tag_at(sourcefile_index).is_utf8(), |
|
2286 |
"Invalid SourceFile attribute at constant pool index %u in class file %s", |
|
2287 |
sourcefile_index, CHECK); |
|
2288 |
k->set_source_file_name(cp->symbol_at(sourcefile_index)); |
|
2289 |
} |
|
2290 |
||
2291 |
||
2292 |
||
2293 |
void ClassFileParser::parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, |
|
2294 |
instanceKlassHandle k, |
|
2295 |
int length, TRAPS) { |
|
2296 |
ClassFileStream* cfs = stream(); |
|
2297 |
u1* sde_buffer = cfs->get_u1_buffer(); |
|
2298 |
assert(sde_buffer != NULL, "null sde buffer"); |
|
2299 |
||
2300 |
// Don't bother storing it if there is no way to retrieve it |
|
2301 |
if (JvmtiExport::can_get_source_debug_extension()) { |
|
2302 |
// Optimistically assume that only 1 byte UTF format is used |
|
2303 |
// (common case) |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2304 |
TempNewSymbol sde_symbol = SymbolTable::new_symbol((const char*)sde_buffer, length, CHECK); |
1 | 2305 |
k->set_source_debug_extension(sde_symbol); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2306 |
// Note that set_source_debug_extension() increments the reference count |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2307 |
// for its copy of the Symbol*, so use a TempNewSymbol here. |
1 | 2308 |
} |
2309 |
// Got utf8 string, set stream position forward |
|
2310 |
cfs->skip_u1(length, CHECK); |
|
2311 |
} |
|
2312 |
||
2313 |
||
2314 |
// Inner classes can be static, private or protected (classic VM does this) |
|
2315 |
#define RECOGNIZED_INNER_CLASS_MODIFIERS (JVM_RECOGNIZED_CLASS_MODIFIERS | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED | JVM_ACC_STATIC) |
|
2316 |
||
2317 |
// Return number of classes in the inner classes attribute table |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2318 |
u2 ClassFileParser::parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2319 |
bool parsed_enclosingmethod_attribute, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2320 |
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
|
2321 |
u2 enclosing_method_method_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2322 |
constantPoolHandle cp, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2323 |
instanceKlassHandle k, TRAPS) { |
1 | 2324 |
ClassFileStream* cfs = stream(); |
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2325 |
u1* current_mark = cfs->current(); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2326 |
u2 length = 0; |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2327 |
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
|
2328 |
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
|
2329 |
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
|
2330 |
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
|
2331 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2332 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2333 |
// 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
|
2334 |
// method data: |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2335 |
// [inner_class_info_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2336 |
// outer_class_info_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2337 |
// inner_name_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2338 |
// inner_class_access_flags, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2339 |
// ... |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2340 |
// enclosing_method_class_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2341 |
// enclosing_method_method_index] |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2342 |
int size = length * 4 + (parsed_enclosingmethod_attribute ? 2 : 0); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2343 |
typeArrayOop ic = oopFactory::new_permanent_shortArray(size, CHECK_0); |
1 | 2344 |
typeArrayHandle inner_classes(THREAD, ic); |
2345 |
int index = 0; |
|
2346 |
int cp_size = cp->length(); |
|
2347 |
cfs->guarantee_more(8 * length, CHECK_0); // 4-tuples of u2 |
|
2348 |
for (int n = 0; n < length; n++) { |
|
2349 |
// Inner class index |
|
2350 |
u2 inner_class_info_index = cfs->get_u2_fast(); |
|
2351 |
check_property( |
|
2352 |
inner_class_info_index == 0 || |
|
2353 |
(valid_cp_range(inner_class_info_index, cp_size) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2354 |
is_klass_reference(cp, inner_class_info_index)), |
1 | 2355 |
"inner_class_info_index %u has bad constant type in class file %s", |
2356 |
inner_class_info_index, CHECK_0); |
|
2357 |
// Outer class index |
|
2358 |
u2 outer_class_info_index = cfs->get_u2_fast(); |
|
2359 |
check_property( |
|
2360 |
outer_class_info_index == 0 || |
|
2361 |
(valid_cp_range(outer_class_info_index, cp_size) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2362 |
is_klass_reference(cp, outer_class_info_index)), |
1 | 2363 |
"outer_class_info_index %u has bad constant type in class file %s", |
2364 |
outer_class_info_index, CHECK_0); |
|
2365 |
// Inner class name |
|
2366 |
u2 inner_name_index = cfs->get_u2_fast(); |
|
2367 |
check_property( |
|
2368 |
inner_name_index == 0 || (valid_cp_range(inner_name_index, cp_size) && |
|
2369 |
cp->tag_at(inner_name_index).is_utf8()), |
|
2370 |
"inner_name_index %u has bad constant type in class file %s", |
|
2371 |
inner_name_index, CHECK_0); |
|
2372 |
if (_need_verify) { |
|
2373 |
guarantee_property(inner_class_info_index != outer_class_info_index, |
|
2374 |
"Class is both outer and inner class in class file %s", CHECK_0); |
|
2375 |
} |
|
2376 |
// Access flags |
|
2377 |
AccessFlags inner_access_flags; |
|
2378 |
jint flags = cfs->get_u2_fast() & RECOGNIZED_INNER_CLASS_MODIFIERS; |
|
2379 |
if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) { |
|
2380 |
// Set abstract bit for old class files for backward compatibility |
|
2381 |
flags |= JVM_ACC_ABSTRACT; |
|
2382 |
} |
|
2383 |
verify_legal_class_modifiers(flags, CHECK_0); |
|
2384 |
inner_access_flags.set_flags(flags); |
|
2385 |
||
2386 |
inner_classes->short_at_put(index++, inner_class_info_index); |
|
2387 |
inner_classes->short_at_put(index++, outer_class_info_index); |
|
2388 |
inner_classes->short_at_put(index++, inner_name_index); |
|
2389 |
inner_classes->short_at_put(index++, inner_access_flags.as_short()); |
|
2390 |
} |
|
2391 |
||
2392 |
// 4347400: make sure there's no duplicate entry in the classes array |
|
2393 |
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
|
2394 |
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
|
2395 |
for(int j = i + 4; j < length * 4; j += 4) { |
1 | 2396 |
guarantee_property((inner_classes->ushort_at(i) != inner_classes->ushort_at(j) || |
2397 |
inner_classes->ushort_at(i+1) != inner_classes->ushort_at(j+1) || |
|
2398 |
inner_classes->ushort_at(i+2) != inner_classes->ushort_at(j+2) || |
|
2399 |
inner_classes->ushort_at(i+3) != inner_classes->ushort_at(j+3)), |
|
2400 |
"Duplicate entry in InnerClasses in class file %s", |
|
2401 |
CHECK_0); |
|
2402 |
} |
|
2403 |
} |
|
2404 |
} |
|
2405 |
||
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2406 |
// 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
|
2407 |
if (parsed_enclosingmethod_attribute) { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2408 |
inner_classes->short_at_put(index++, enclosing_method_class_index); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2409 |
inner_classes->short_at_put(index++, enclosing_method_method_index); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2410 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2411 |
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
|
2412 |
|
1 | 2413 |
// Update instanceKlass with inner class info. |
2414 |
k->set_inner_classes(inner_classes()); |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2415 |
|
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2416 |
// 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
|
2417 |
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
|
2418 |
|
1 | 2419 |
return length; |
2420 |
} |
|
2421 |
||
2422 |
void ClassFileParser::parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) { |
|
2423 |
k->set_is_synthetic(); |
|
2424 |
} |
|
2425 |
||
2426 |
void ClassFileParser::parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) { |
|
2427 |
ClassFileStream* cfs = stream(); |
|
2428 |
u2 signature_index = cfs->get_u2(CHECK); |
|
2429 |
check_property( |
|
2430 |
valid_cp_range(signature_index, cp->length()) && |
|
2431 |
cp->tag_at(signature_index).is_utf8(), |
|
2432 |
"Invalid constant pool index %u in Signature attribute in class file %s", |
|
2433 |
signature_index, CHECK); |
|
2434 |
k->set_generic_signature(cp->symbol_at(signature_index)); |
|
2435 |
} |
|
2436 |
||
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2437 |
void ClassFileParser::parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2438 |
u4 attribute_byte_length, TRAPS) { |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2439 |
ClassFileStream* cfs = stream(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2440 |
u1* current_start = cfs->current(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2441 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2442 |
cfs->guarantee_more(2, CHECK); // length |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2443 |
int attribute_array_length = cfs->get_u2_fast(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2444 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2445 |
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
|
2446 |
"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
|
2447 |
CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2448 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2449 |
// 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:
7397
diff
changeset
|
2450 |
// represending bootstrap specifiers: |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2451 |
// length*{bootstrap_method_index, argument_count*{argument_index}} |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2452 |
int operand_count = (attribute_byte_length - sizeof(u2)) / sizeof(u2); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2453 |
// 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:
7397
diff
changeset
|
2454 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2455 |
// 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
|
2456 |
// The array begins with a series of short[2] pairs, one for each tuple. |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2457 |
int index_size = (attribute_array_length * 2); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2458 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2459 |
typeArrayOop operands_oop = oopFactory::new_permanent_intArray(index_size + operand_count, CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2460 |
typeArrayHandle operands(THREAD, operands_oop); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2461 |
operands_oop = NULL; // tidy |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2462 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2463 |
int operand_fill_index = index_size; |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2464 |
int cp_size = cp->length(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2465 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2466 |
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
|
2467 |
// Store a 32-bit offset into the header of the operand array. |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2468 |
assert(constantPoolOopDesc::operand_offset_at(operands(), n) == 0, ""); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2469 |
constantPoolOopDesc::operand_offset_at_put(operands(), n, operand_fill_index); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2470 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2471 |
// 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
|
2472 |
cfs->guarantee_more(sizeof(u2) * 2, CHECK); // bsm, argc |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2473 |
u2 bootstrap_method_index = cfs->get_u2_fast(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2474 |
u2 argument_count = cfs->get_u2_fast(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2475 |
check_property( |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2476 |
valid_cp_range(bootstrap_method_index, cp_size) && |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2477 |
cp->tag_at(bootstrap_method_index).is_method_handle(), |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2478 |
"bootstrap_method_index %u has bad constant type in class file %s", |
7709 | 2479 |
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
|
2480 |
CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2481 |
operands->short_at_put(operand_fill_index++, bootstrap_method_index); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2482 |
operands->short_at_put(operand_fill_index++, argument_count); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2483 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2484 |
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
|
2485 |
for (int j = 0; j < argument_count; j++) { |
7709 | 2486 |
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
|
2487 |
check_property( |
7709 | 2488 |
valid_cp_range(argument_index, cp_size) && |
2489 |
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
|
2490 |
"argument_index %u has bad constant type in class file %s", |
7709 | 2491 |
argument_index, |
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2492 |
CHECK); |
7709 | 2493 |
operands->short_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
|
2494 |
} |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2495 |
} |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2496 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2497 |
assert(operand_fill_index == operands()->length(), "exact fill"); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2498 |
assert(constantPoolOopDesc::operand_array_length(operands()) == attribute_array_length, "correct decode"); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2499 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2500 |
u1* current_end = cfs->current(); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2501 |
guarantee_property(current_end == current_start + attribute_byte_length, |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2502 |
"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
|
2503 |
CHECK); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2504 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2505 |
cp->set_operands(operands()); |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2506 |
} |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2507 |
|
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2508 |
|
1 | 2509 |
void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS) { |
2510 |
ClassFileStream* cfs = stream(); |
|
2511 |
// Set inner classes attribute to default sentinel |
|
2512 |
k->set_inner_classes(Universe::the_empty_short_array()); |
|
2513 |
cfs->guarantee_more(2, CHECK); // attributes_count |
|
2514 |
u2 attributes_count = cfs->get_u2_fast(); |
|
2515 |
bool parsed_sourcefile_attribute = false; |
|
2516 |
bool parsed_innerclasses_attribute = false; |
|
2517 |
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
|
2518 |
bool parsed_bootstrap_methods_attribute = false; |
1 | 2519 |
u1* runtime_visible_annotations = NULL; |
2520 |
int runtime_visible_annotations_length = 0; |
|
2521 |
u1* runtime_invisible_annotations = NULL; |
|
2522 |
int runtime_invisible_annotations_length = 0; |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2523 |
u1* 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
|
2524 |
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
|
2525 |
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
|
2526 |
u2 enclosing_method_method_index = 0; |
1 | 2527 |
// Iterate over attributes |
2528 |
while (attributes_count--) { |
|
2529 |
cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length |
|
2530 |
u2 attribute_name_index = cfs->get_u2_fast(); |
|
2531 |
u4 attribute_length = cfs->get_u4_fast(); |
|
2532 |
check_property( |
|
2533 |
valid_cp_range(attribute_name_index, cp->length()) && |
|
2534 |
cp->tag_at(attribute_name_index).is_utf8(), |
|
2535 |
"Attribute name has bad constant pool index %u in class file %s", |
|
2536 |
attribute_name_index, CHECK); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2537 |
Symbol* tag = cp->symbol_at(attribute_name_index); |
1 | 2538 |
if (tag == vmSymbols::tag_source_file()) { |
2539 |
// Check for SourceFile tag |
|
2540 |
if (_need_verify) { |
|
2541 |
guarantee_property(attribute_length == 2, "Wrong SourceFile attribute length in class file %s", CHECK); |
|
2542 |
} |
|
2543 |
if (parsed_sourcefile_attribute) { |
|
2544 |
classfile_parse_error("Multiple SourceFile attributes in class file %s", CHECK); |
|
2545 |
} else { |
|
2546 |
parsed_sourcefile_attribute = true; |
|
2547 |
} |
|
2548 |
parse_classfile_sourcefile_attribute(cp, k, CHECK); |
|
2549 |
} else if (tag == vmSymbols::tag_source_debug_extension()) { |
|
2550 |
// Check for SourceDebugExtension tag |
|
2551 |
parse_classfile_source_debug_extension_attribute(cp, k, (int)attribute_length, CHECK); |
|
2552 |
} else if (tag == vmSymbols::tag_inner_classes()) { |
|
2553 |
// Check for InnerClasses tag |
|
2554 |
if (parsed_innerclasses_attribute) { |
|
2555 |
classfile_parse_error("Multiple InnerClasses attributes in class file %s", CHECK); |
|
2556 |
} else { |
|
2557 |
parsed_innerclasses_attribute = true; |
|
2558 |
} |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2559 |
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
|
2560 |
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
|
2561 |
cfs->skip_u1(inner_classes_attribute_length, CHECK); |
1 | 2562 |
} else if (tag == vmSymbols::tag_synthetic()) { |
2563 |
// Check for Synthetic tag |
|
2564 |
// Shouldn't we check that the synthetic flags wasn't already set? - not required in spec |
|
2565 |
if (attribute_length != 0) { |
|
2566 |
classfile_parse_error( |
|
2567 |
"Invalid Synthetic classfile attribute length %u in class file %s", |
|
2568 |
attribute_length, CHECK); |
|
2569 |
} |
|
2570 |
parse_classfile_synthetic_attribute(cp, k, CHECK); |
|
2571 |
} else if (tag == vmSymbols::tag_deprecated()) { |
|
2572 |
// Check for Deprecatd tag - 4276120 |
|
2573 |
if (attribute_length != 0) { |
|
2574 |
classfile_parse_error( |
|
2575 |
"Invalid Deprecated classfile attribute length %u in class file %s", |
|
2576 |
attribute_length, CHECK); |
|
2577 |
} |
|
2578 |
} else if (_major_version >= JAVA_1_5_VERSION) { |
|
2579 |
if (tag == vmSymbols::tag_signature()) { |
|
2580 |
if (attribute_length != 2) { |
|
2581 |
classfile_parse_error( |
|
2582 |
"Wrong Signature attribute length %u in class file %s", |
|
2583 |
attribute_length, CHECK); |
|
2584 |
} |
|
2585 |
parse_classfile_signature_attribute(cp, k, CHECK); |
|
2586 |
} else if (tag == vmSymbols::tag_runtime_visible_annotations()) { |
|
2587 |
runtime_visible_annotations_length = attribute_length; |
|
2588 |
runtime_visible_annotations = cfs->get_u1_buffer(); |
|
2589 |
assert(runtime_visible_annotations != NULL, "null visible annotations"); |
|
2590 |
cfs->skip_u1(runtime_visible_annotations_length, CHECK); |
|
2591 |
} else if (PreserveAllAnnotations && tag == vmSymbols::tag_runtime_invisible_annotations()) { |
|
2592 |
runtime_invisible_annotations_length = attribute_length; |
|
2593 |
runtime_invisible_annotations = cfs->get_u1_buffer(); |
|
2594 |
assert(runtime_invisible_annotations != NULL, "null invisible annotations"); |
|
2595 |
cfs->skip_u1(runtime_invisible_annotations_length, CHECK); |
|
2596 |
} else if (tag == vmSymbols::tag_enclosing_method()) { |
|
2597 |
if (parsed_enclosingmethod_attribute) { |
|
2598 |
classfile_parse_error("Multiple EnclosingMethod attributes in class file %s", CHECK); |
|
2599 |
} else { |
|
2600 |
parsed_enclosingmethod_attribute = true; |
|
2601 |
} |
|
2602 |
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
|
2603 |
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
|
2604 |
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
|
2605 |
if (enclosing_method_class_index == 0) { |
1 | 2606 |
classfile_parse_error("Invalid class index in EnclosingMethod attribute in class file %s", CHECK); |
2607 |
} |
|
2608 |
// Validate the constant pool indices and types |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2609 |
if (!cp->is_within_bounds(enclosing_method_class_index) || |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2610 |
!is_klass_reference(cp, enclosing_method_class_index)) { |
1 | 2611 |
classfile_parse_error("Invalid or out-of-bounds class index in EnclosingMethod attribute in class file %s", CHECK); |
2612 |
} |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2613 |
if (enclosing_method_method_index != 0 && |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2614 |
(!cp->is_within_bounds(enclosing_method_method_index) || |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2615 |
!cp->tag_at(enclosing_method_method_index).is_name_and_type())) { |
1 | 2616 |
classfile_parse_error("Invalid or out-of-bounds method index in EnclosingMethod attribute in class file %s", CHECK); |
2617 |
} |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2618 |
} 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
|
2619 |
_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
|
2620 |
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
|
2621 |
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
|
2622 |
parsed_bootstrap_methods_attribute = true; |
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2623 |
parse_classfile_bootstrap_methods_attribute(cp, k, attribute_length, CHECK); |
1 | 2624 |
} else { |
2625 |
// Unknown attribute |
|
2626 |
cfs->skip_u1(attribute_length, CHECK); |
|
2627 |
} |
|
2628 |
} else { |
|
2629 |
// Unknown attribute |
|
2630 |
cfs->skip_u1(attribute_length, CHECK); |
|
2631 |
} |
|
2632 |
} |
|
2633 |
typeArrayHandle annotations = assemble_annotations(runtime_visible_annotations, |
|
2634 |
runtime_visible_annotations_length, |
|
2635 |
runtime_invisible_annotations, |
|
2636 |
runtime_invisible_annotations_length, |
|
2637 |
CHECK); |
|
2638 |
k->set_class_annotations(annotations()); |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2639 |
|
12231
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2640 |
if (parsed_innerclasses_attribute || parsed_enclosingmethod_attribute) { |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2641 |
u2 num_of_classes = parse_classfile_inner_classes_attribute( |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2642 |
inner_classes_attribute_start, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2643 |
parsed_innerclasses_attribute, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2644 |
enclosing_method_class_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2645 |
enclosing_method_method_index, |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2646 |
cp, k, CHECK); |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2647 |
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
|
2648 |
guarantee_property( |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2649 |
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
|
2650 |
"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
|
2651 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2652 |
} |
6a9cfc59a18a
7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents:
11423
diff
changeset
|
2653 |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2654 |
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
|
2655 |
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
|
2656 |
"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
|
2657 |
} |
1 | 2658 |
} |
2659 |
||
2660 |
||
2661 |
typeArrayHandle ClassFileParser::assemble_annotations(u1* runtime_visible_annotations, |
|
2662 |
int runtime_visible_annotations_length, |
|
2663 |
u1* runtime_invisible_annotations, |
|
2664 |
int runtime_invisible_annotations_length, TRAPS) { |
|
2665 |
typeArrayHandle annotations; |
|
2666 |
if (runtime_visible_annotations != NULL || |
|
2667 |
runtime_invisible_annotations != NULL) { |
|
2668 |
typeArrayOop anno = oopFactory::new_permanent_byteArray(runtime_visible_annotations_length + |
|
2669 |
runtime_invisible_annotations_length, CHECK_(annotations)); |
|
2670 |
annotations = typeArrayHandle(THREAD, anno); |
|
2671 |
if (runtime_visible_annotations != NULL) { |
|
2672 |
memcpy(annotations->byte_at_addr(0), runtime_visible_annotations, runtime_visible_annotations_length); |
|
2673 |
} |
|
2674 |
if (runtime_invisible_annotations != NULL) { |
|
2675 |
memcpy(annotations->byte_at_addr(runtime_visible_annotations_length), runtime_invisible_annotations, runtime_invisible_annotations_length); |
|
2676 |
} |
|
2677 |
} |
|
2678 |
return annotations; |
|
2679 |
} |
|
2680 |
||
2681 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2682 |
instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name, |
1 | 2683 |
Handle class_loader, |
2684 |
Handle protection_domain, |
|
2534 | 2685 |
KlassHandle host_klass, |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2686 |
GrowableArray<Handle>* cp_patches, |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2687 |
TempNewSymbol& parsed_name, |
3820
0a8fbbe180db
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
3579
diff
changeset
|
2688 |
bool verify, |
1 | 2689 |
TRAPS) { |
11399
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2690 |
// When a retransformable agent is attached, JVMTI caches the |
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2691 |
// class bytes that existed before the first retransformation. |
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2692 |
// If RedefineClasses() was used before the retransformable |
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2693 |
// agent attached, then the cached class bytes may not be the |
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2694 |
// original class bytes. |
1 | 2695 |
unsigned char *cached_class_file_bytes = NULL; |
2696 |
jint cached_class_file_length; |
|
2697 |
||
2698 |
ClassFileStream* cfs = stream(); |
|
2699 |
// Timing |
|
3575
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2700 |
assert(THREAD->is_Java_thread(), "must be a JavaThread"); |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2701 |
JavaThread* jt = (JavaThread*) THREAD; |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2702 |
|
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2703 |
PerfClassTraceTime ctimer(ClassLoader::perf_class_parse_time(), |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2704 |
ClassLoader::perf_class_parse_selftime(), |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2705 |
NULL, |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2706 |
jt->get_thread_stat()->perf_recursion_counts_addr(), |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2707 |
jt->get_thread_stat()->perf_timers_addr(), |
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2708 |
PerfClassTraceTime::PARSE_CLASS); |
1 | 2709 |
|
2710 |
_has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false; |
|
7436
dbc43da3d512
7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents:
7397
diff
changeset
|
2711 |
_max_bootstrap_specifier_index = -1; |
1 | 2712 |
|
2713 |
if (JvmtiExport::should_post_class_file_load_hook()) { |
|
11419
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2714 |
// Get the cached class file bytes (if any) from the class that |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2715 |
// is being redefined or retransformed. We use jvmti_thread_state() |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2716 |
// instead of JvmtiThreadState::state_for(jt) so we don't allocate |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2717 |
// a JvmtiThreadState any earlier than necessary. This will help |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2718 |
// avoid the bug described by 7126851. |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2719 |
JvmtiThreadState *state = jt->jvmti_thread_state(); |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2720 |
if (state != NULL) { |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2721 |
KlassHandle *h_class_being_redefined = |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2722 |
state->get_class_being_redefined(); |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2723 |
if (h_class_being_redefined != NULL) { |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2724 |
instanceKlassHandle ikh_class_being_redefined = |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2725 |
instanceKlassHandle(THREAD, (*h_class_being_redefined)()); |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2726 |
cached_class_file_bytes = |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2727 |
ikh_class_being_redefined->get_cached_class_file_bytes(); |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2728 |
cached_class_file_length = |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2729 |
ikh_class_being_redefined->get_cached_class_file_len(); |
af92c7669f5a
7127032: fix for 7122253 adds a JvmtiThreadState earlier than necessary
dcubed
parents:
11399
diff
changeset
|
2730 |
} |
11399
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2731 |
} |
5dd5c4dd4b7d
7122253: Instrumentation.retransformClasses() leaks class bytes
dcubed
parents:
10546
diff
changeset
|
2732 |
|
1 | 2733 |
unsigned char* ptr = cfs->buffer(); |
2734 |
unsigned char* end_ptr = cfs->buffer() + cfs->length(); |
|
2735 |
||
2736 |
JvmtiExport::post_class_file_load_hook(name, class_loader, protection_domain, |
|
2737 |
&ptr, &end_ptr, |
|
2738 |
&cached_class_file_bytes, |
|
2739 |
&cached_class_file_length); |
|
2740 |
||
2741 |
if (ptr != cfs->buffer()) { |
|
2742 |
// JVMTI agent has modified class file data. |
|
2743 |
// Set new class file stream using JVMTI agent modified |
|
2744 |
// class file data. |
|
2745 |
cfs = new ClassFileStream(ptr, end_ptr - ptr, cfs->source()); |
|
2746 |
set_stream(cfs); |
|
2747 |
} |
|
2748 |
} |
|
2749 |
||
2534 | 2750 |
_host_klass = host_klass; |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2751 |
_cp_patches = cp_patches; |
1 | 2752 |
|
2753 |
instanceKlassHandle nullHandle; |
|
2754 |
||
2755 |
// Figure out whether we can skip format checking (matching classic VM behavior) |
|
3820
0a8fbbe180db
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
3579
diff
changeset
|
2756 |
_need_verify = Verifier::should_verify_for(class_loader(), verify); |
1 | 2757 |
|
2758 |
// Set the verify flag in stream |
|
2759 |
cfs->set_verify(_need_verify); |
|
2760 |
||
2761 |
// Save the class file name for easier error message printing. |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2762 |
_class_name = (name != NULL) ? name : vmSymbols::unknown_class_name(); |
1 | 2763 |
|
2764 |
cfs->guarantee_more(8, CHECK_(nullHandle)); // magic, major, minor |
|
2765 |
// Magic value |
|
2766 |
u4 magic = cfs->get_u4_fast(); |
|
2767 |
guarantee_property(magic == JAVA_CLASSFILE_MAGIC, |
|
2768 |
"Incompatible magic value %u in class file %s", |
|
2769 |
magic, CHECK_(nullHandle)); |
|
2770 |
||
2771 |
// Version numbers |
|
2772 |
u2 minor_version = cfs->get_u2_fast(); |
|
2773 |
u2 major_version = cfs->get_u2_fast(); |
|
2774 |
||
2775 |
// Check version numbers - we check this even with verifier off |
|
2776 |
if (!is_supported_version(major_version, minor_version)) { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2777 |
if (name == NULL) { |
1 | 2778 |
Exceptions::fthrow( |
2779 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2780 |
vmSymbols::java_lang_UnsupportedClassVersionError(), |
1 | 2781 |
"Unsupported major.minor version %u.%u", |
2782 |
major_version, |
|
2783 |
minor_version); |
|
2784 |
} else { |
|
2785 |
ResourceMark rm(THREAD); |
|
2786 |
Exceptions::fthrow( |
|
2787 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2788 |
vmSymbols::java_lang_UnsupportedClassVersionError(), |
1 | 2789 |
"%s : Unsupported major.minor version %u.%u", |
2790 |
name->as_C_string(), |
|
2791 |
major_version, |
|
2792 |
minor_version); |
|
2793 |
} |
|
2794 |
return nullHandle; |
|
2795 |
} |
|
2796 |
||
2797 |
_major_version = major_version; |
|
2798 |
_minor_version = minor_version; |
|
2799 |
||
2800 |
||
2801 |
// Check if verification needs to be relaxed for this class file |
|
2802 |
// Do not restrict it to jdk1.0 or jdk1.1 to maintain backward compatibility (4982376) |
|
2803 |
_relax_verify = Verifier::relax_verify_for(class_loader()); |
|
2804 |
||
2805 |
// Constant pool |
|
12263
d20640f4f8fe
7150058: Allocate symbols from null boot loader to an arena for NMT
coleenp
parents:
11423
diff
changeset
|
2806 |
constantPoolHandle cp = parse_constant_pool(class_loader, CHECK_(nullHandle)); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2807 |
ConstantPoolCleaner error_handler(cp); // set constant pool to be cleaned up. |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2808 |
|
1 | 2809 |
int cp_size = cp->length(); |
2810 |
||
2811 |
cfs->guarantee_more(8, CHECK_(nullHandle)); // flags, this_class, super_class, infs_len |
|
2812 |
||
2813 |
// Access flags |
|
2814 |
AccessFlags access_flags; |
|
2815 |
jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_CLASS_MODIFIERS; |
|
2816 |
||
2817 |
if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) { |
|
2818 |
// Set abstract bit for old class files for backward compatibility |
|
2819 |
flags |= JVM_ACC_ABSTRACT; |
|
2820 |
} |
|
2821 |
verify_legal_class_modifiers(flags, CHECK_(nullHandle)); |
|
2822 |
access_flags.set_flags(flags); |
|
2823 |
||
2824 |
// This class and superclass |
|
2825 |
instanceKlassHandle super_klass; |
|
2826 |
u2 this_class_index = cfs->get_u2_fast(); |
|
2827 |
check_property( |
|
2828 |
valid_cp_range(this_class_index, cp_size) && |
|
2829 |
cp->tag_at(this_class_index).is_unresolved_klass(), |
|
2830 |
"Invalid this class index %u in constant pool in class file %s", |
|
2831 |
this_class_index, CHECK_(nullHandle)); |
|
2832 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2833 |
Symbol* class_name = cp->unresolved_klass_at(this_class_index); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2834 |
assert(class_name != NULL, "class_name can't be null"); |
1 | 2835 |
|
2836 |
// It's important to set parsed_name *before* resolving the super class. |
|
2837 |
// (it's used for cleanup by the caller if parsing fails) |
|
2838 |
parsed_name = class_name; |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2839 |
// parsed_name is returned and can be used if there's an error, so add to |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2840 |
// its reference count. Caller will decrement the refcount. |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2841 |
parsed_name->increment_refcount(); |
1 | 2842 |
|
2843 |
// Update _class_name which could be null previously to be class_name |
|
2844 |
_class_name = class_name; |
|
2845 |
||
2846 |
// Don't need to check whether this class name is legal or not. |
|
2847 |
// It has been checked when constant pool is parsed. |
|
2848 |
// However, make sure it is not an array type. |
|
2849 |
if (_need_verify) { |
|
2850 |
guarantee_property(class_name->byte_at(0) != JVM_SIGNATURE_ARRAY, |
|
2851 |
"Bad class name in class file %s", |
|
2852 |
CHECK_(nullHandle)); |
|
2853 |
} |
|
2854 |
||
2855 |
klassOop preserve_this_klass; // for storing result across HandleMark |
|
2856 |
||
2857 |
// release all handles when parsing is done |
|
2858 |
{ HandleMark hm(THREAD); |
|
2859 |
||
2860 |
// Checks if name in class file matches requested name |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2861 |
if (name != NULL && class_name != name) { |
1 | 2862 |
ResourceMark rm(THREAD); |
2863 |
Exceptions::fthrow( |
|
2864 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2865 |
vmSymbols::java_lang_NoClassDefFoundError(), |
1 | 2866 |
"%s (wrong name: %s)", |
2867 |
name->as_C_string(), |
|
2868 |
class_name->as_C_string() |
|
2869 |
); |
|
2870 |
return nullHandle; |
|
2871 |
} |
|
2872 |
||
2873 |
if (TraceClassLoadingPreorder) { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2874 |
tty->print("[Loading %s", name->as_klass_external_name()); |
1 | 2875 |
if (cfs->source() != NULL) tty->print(" from %s", cfs->source()); |
2876 |
tty->print_cr("]"); |
|
2877 |
} |
|
2878 |
||
2879 |
u2 super_class_index = cfs->get_u2_fast(); |
|
2880 |
if (super_class_index == 0) { |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2881 |
check_property(class_name == vmSymbols::java_lang_Object(), |
1 | 2882 |
"Invalid superclass index %u in class file %s", |
2883 |
super_class_index, |
|
2884 |
CHECK_(nullHandle)); |
|
2885 |
} else { |
|
2886 |
check_property(valid_cp_range(super_class_index, cp_size) && |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2887 |
is_klass_reference(cp, super_class_index), |
1 | 2888 |
"Invalid superclass index %u in class file %s", |
2889 |
super_class_index, |
|
2890 |
CHECK_(nullHandle)); |
|
2891 |
// The class name should be legal because it is checked when parsing constant pool. |
|
2892 |
// However, make sure it is not an array type. |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2893 |
bool is_array = false; |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2894 |
if (cp->tag_at(super_class_index).is_klass()) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2895 |
super_klass = instanceKlassHandle(THREAD, cp->resolved_klass_at(super_class_index)); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2896 |
if (_need_verify) |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2897 |
is_array = super_klass->oop_is_array(); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2898 |
} else if (_need_verify) { |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2899 |
is_array = (cp->unresolved_klass_at(super_class_index)->byte_at(0) == JVM_SIGNATURE_ARRAY); |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2900 |
} |
1 | 2901 |
if (_need_verify) { |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2902 |
guarantee_property(!is_array, |
1 | 2903 |
"Bad superclass name in class file %s", CHECK_(nullHandle)); |
2904 |
} |
|
2905 |
} |
|
2906 |
||
2907 |
// Interfaces |
|
2908 |
u2 itfs_len = cfs->get_u2_fast(); |
|
2909 |
objArrayHandle local_interfaces; |
|
2910 |
if (itfs_len == 0) { |
|
2911 |
local_interfaces = objArrayHandle(THREAD, Universe::the_empty_system_obj_array()); |
|
2912 |
} else { |
|
3575
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2913 |
local_interfaces = parse_interfaces(cp, itfs_len, class_loader, protection_domain, _class_name, CHECK_(nullHandle)); |
1 | 2914 |
} |
2915 |
||
11412
62fe312f32c5
7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
jiangli
parents:
10546
diff
changeset
|
2916 |
u2 java_fields_count = 0; |
1 | 2917 |
// Fields (offsets are filled in later) |
10546 | 2918 |
FieldAllocationCount fac; |
1 | 2919 |
objArrayHandle fields_annotations; |
10546 | 2920 |
typeArrayHandle fields = parse_fields(class_name, cp, access_flags.is_interface(), &fac, &fields_annotations, |
2921 |
&java_fields_count, |
|
2922 |
CHECK_(nullHandle)); |
|
1 | 2923 |
// Methods |
2924 |
bool has_final_method = false; |
|
2925 |
AccessFlags promoted_flags; |
|
2926 |
promoted_flags.set_flags(0); |
|
2927 |
// These need to be oop pointers because they are allocated lazily |
|
2928 |
// inside parse_methods inside a nested HandleMark |
|
2929 |
objArrayOop methods_annotations_oop = NULL; |
|
2930 |
objArrayOop methods_parameter_annotations_oop = NULL; |
|
2931 |
objArrayOop methods_default_annotations_oop = NULL; |
|
2932 |
objArrayHandle methods = parse_methods(cp, access_flags.is_interface(), |
|
2933 |
&promoted_flags, |
|
2934 |
&has_final_method, |
|
2935 |
&methods_annotations_oop, |
|
2936 |
&methods_parameter_annotations_oop, |
|
2937 |
&methods_default_annotations_oop, |
|
2938 |
CHECK_(nullHandle)); |
|
2939 |
||
2940 |
objArrayHandle methods_annotations(THREAD, methods_annotations_oop); |
|
2941 |
objArrayHandle methods_parameter_annotations(THREAD, methods_parameter_annotations_oop); |
|
2942 |
objArrayHandle methods_default_annotations(THREAD, methods_default_annotations_oop); |
|
2943 |
||
2944 |
// We check super class after class file is parsed and format is checked |
|
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2945 |
if (super_class_index > 0 && super_klass.is_null()) { |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2946 |
Symbol* sk = cp->klass_name_at(super_class_index); |
1 | 2947 |
if (access_flags.is_interface()) { |
2948 |
// Before attempting to resolve the superclass, check for class format |
|
2949 |
// errors not checked yet. |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2950 |
guarantee_property(sk == vmSymbols::java_lang_Object(), |
1 | 2951 |
"Interfaces must have java.lang.Object as superclass in class file %s", |
2952 |
CHECK_(nullHandle)); |
|
2953 |
} |
|
2954 |
klassOop k = SystemDictionary::resolve_super_or_fail(class_name, |
|
2955 |
sk, |
|
2956 |
class_loader, |
|
2957 |
protection_domain, |
|
2958 |
true, |
|
2959 |
CHECK_(nullHandle)); |
|
3575
224791e7ecab
6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents:
2534
diff
changeset
|
2960 |
|
1 | 2961 |
KlassHandle kh (THREAD, k); |
2962 |
super_klass = instanceKlassHandle(THREAD, kh()); |
|
1661
7cb0f0d385f3
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
1550
diff
changeset
|
2963 |
if (LinkWellKnownClasses) // my super class is well known to me |
7cb0f0d385f3
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
1550
diff
changeset
|
2964 |
cp->klass_at_put(super_class_index, super_klass()); // eagerly resolve |
1550
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2965 |
} |
be2fc37a817f
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
670
diff
changeset
|
2966 |
if (super_klass.not_null()) { |
1 | 2967 |
if (super_klass->is_interface()) { |
2968 |
ResourceMark rm(THREAD); |
|
2969 |
Exceptions::fthrow( |
|
2970 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
2971 |
vmSymbols::java_lang_IncompatibleClassChangeError(), |
1 | 2972 |
"class %s has interface %s as super class", |
2973 |
class_name->as_klass_external_name(), |
|
2974 |
super_klass->external_name() |
|
2975 |
); |
|
2976 |
return nullHandle; |
|
2977 |
} |
|
2978 |
// Make sure super class is not final |
|
2979 |
if (super_klass->is_final()) { |
|
2980 |
THROW_MSG_(vmSymbols::java_lang_VerifyError(), "Cannot inherit from final class", nullHandle); |
|
2981 |
} |
|
2982 |
} |
|
2983 |
||
2984 |
// Compute the transitive list of all unique interfaces implemented by this class |
|
2985 |
objArrayHandle transitive_interfaces = compute_transitive_interfaces(super_klass, local_interfaces, CHECK_(nullHandle)); |
|
2986 |
||
2987 |
// sort methods |
|
2988 |
typeArrayHandle method_ordering = sort_methods(methods, |
|
2989 |
methods_annotations, |
|
2990 |
methods_parameter_annotations, |
|
2991 |
methods_default_annotations, |
|
2992 |
CHECK_(nullHandle)); |
|
2993 |
||
2994 |
// promote flags from parse_methods() to the klass' flags |
|
2995 |
access_flags.add_promoted_flags(promoted_flags.as_int()); |
|
2996 |
||
2997 |
// Size of Java vtable (in words) |
|
2998 |
int vtable_size = 0; |
|
2999 |
int itable_size = 0; |
|
3000 |
int num_miranda_methods = 0; |
|
3001 |
||
3002 |
klassVtable::compute_vtable_size_and_num_mirandas(vtable_size, |
|
3003 |
num_miranda_methods, |
|
3004 |
super_klass(), |
|
3005 |
methods(), |
|
3006 |
access_flags, |
|
2264
55d0115a54fe
4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents:
2105
diff
changeset
|
3007 |
class_loader, |
55d0115a54fe
4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents:
2105
diff
changeset
|
3008 |
class_name, |
55d0115a54fe
4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents:
2105
diff
changeset
|
3009 |
local_interfaces(), |
55d0115a54fe
4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents:
2105
diff
changeset
|
3010 |
CHECK_(nullHandle)); |
1 | 3011 |
|
3012 |
// Size of Java itable (in words) |
|
3013 |
itable_size = access_flags.is_interface() ? 0 : klassItable::compute_itable_size(transitive_interfaces); |
|
3014 |
||
3015 |
// Field size and offset computation |
|
3016 |
int nonstatic_field_size = super_klass() == NULL ? 0 : super_klass->nonstatic_field_size(); |
|
3017 |
#ifndef PRODUCT |
|
3018 |
int orig_nonstatic_field_size = 0; |
|
3019 |
#endif |
|
3020 |
int static_field_size = 0; |
|
3021 |
int next_static_oop_offset; |
|
3022 |
int next_static_double_offset; |
|
3023 |
int next_static_word_offset; |
|
3024 |
int next_static_short_offset; |
|
3025 |
int next_static_byte_offset; |
|
3026 |
int next_static_type_offset; |
|
3027 |
int next_nonstatic_oop_offset; |
|
3028 |
int next_nonstatic_double_offset; |
|
3029 |
int next_nonstatic_word_offset; |
|
3030 |
int next_nonstatic_short_offset; |
|
3031 |
int next_nonstatic_byte_offset; |
|
3032 |
int next_nonstatic_type_offset; |
|
3033 |
int first_nonstatic_oop_offset; |
|
3034 |
int first_nonstatic_field_offset; |
|
3035 |
int next_nonstatic_field_offset; |
|
3036 |
||
3037 |
// Calculate the starting byte offsets |
|
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
3038 |
next_static_oop_offset = instanceMirrorKlass::offset_of_static_fields(); |
1 | 3039 |
next_static_double_offset = next_static_oop_offset + |
10546 | 3040 |
(fac.count[STATIC_OOP] * heapOopSize); |
3041 |
if ( fac.count[STATIC_DOUBLE] && |
|
1 | 3042 |
(Universe::field_type_should_be_aligned(T_DOUBLE) || |
3043 |
Universe::field_type_should_be_aligned(T_LONG)) ) { |
|
3044 |
next_static_double_offset = align_size_up(next_static_double_offset, BytesPerLong); |
|
3045 |
} |
|
3046 |
||
3047 |
next_static_word_offset = next_static_double_offset + |
|
10546 | 3048 |
(fac.count[STATIC_DOUBLE] * BytesPerLong); |
1 | 3049 |
next_static_short_offset = next_static_word_offset + |
10546 | 3050 |
(fac.count[STATIC_WORD] * BytesPerInt); |
1 | 3051 |
next_static_byte_offset = next_static_short_offset + |
10546 | 3052 |
(fac.count[STATIC_SHORT] * BytesPerShort); |
1 | 3053 |
next_static_type_offset = align_size_up((next_static_byte_offset + |
10546 | 3054 |
fac.count[STATIC_BYTE] ), wordSize ); |
1 | 3055 |
static_field_size = (next_static_type_offset - |
3056 |
next_static_oop_offset) / wordSize; |
|
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
3057 |
|
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3058 |
first_nonstatic_field_offset = instanceOopDesc::base_offset_in_bytes() + |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3059 |
nonstatic_field_size * heapOopSize; |
1 | 3060 |
next_nonstatic_field_offset = first_nonstatic_field_offset; |
3061 |
||
10546 | 3062 |
unsigned int nonstatic_double_count = fac.count[NONSTATIC_DOUBLE]; |
3063 |
unsigned int nonstatic_word_count = fac.count[NONSTATIC_WORD]; |
|
3064 |
unsigned int nonstatic_short_count = fac.count[NONSTATIC_SHORT]; |
|
3065 |
unsigned int nonstatic_byte_count = fac.count[NONSTATIC_BYTE]; |
|
3066 |
unsigned int nonstatic_oop_count = fac.count[NONSTATIC_OOP]; |
|
1 | 3067 |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3068 |
bool super_has_nonstatic_fields = |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3069 |
(super_klass() != NULL && super_klass->has_nonstatic_fields()); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3070 |
bool has_nonstatic_fields = super_has_nonstatic_fields || |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3071 |
((nonstatic_double_count + nonstatic_word_count + |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3072 |
nonstatic_short_count + nonstatic_byte_count + |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3073 |
nonstatic_oop_count) != 0); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3074 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3075 |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3076 |
// Prepare list of oops for oop map generation. |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3077 |
int* nonstatic_oop_offsets; |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3078 |
unsigned int* nonstatic_oop_counts; |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3079 |
unsigned int nonstatic_oop_map_count = 0; |
1 | 3080 |
|
3081 |
nonstatic_oop_offsets = NEW_RESOURCE_ARRAY_IN_THREAD( |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3082 |
THREAD, int, nonstatic_oop_count + 1); |
3693 | 3083 |
nonstatic_oop_counts = NEW_RESOURCE_ARRAY_IN_THREAD( |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3084 |
THREAD, unsigned int, nonstatic_oop_count + 1); |
1 | 3085 |
|
10546 | 3086 |
first_nonstatic_oop_offset = 0; // will be set for first oop field |
1 | 3087 |
|
3088 |
#ifndef PRODUCT |
|
3089 |
if( PrintCompactFieldsSavings ) { |
|
3090 |
next_nonstatic_double_offset = next_nonstatic_field_offset + |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3091 |
(nonstatic_oop_count * heapOopSize); |
1 | 3092 |
if ( nonstatic_double_count > 0 ) { |
3093 |
next_nonstatic_double_offset = align_size_up(next_nonstatic_double_offset, BytesPerLong); |
|
3094 |
} |
|
3095 |
next_nonstatic_word_offset = next_nonstatic_double_offset + |
|
3096 |
(nonstatic_double_count * BytesPerLong); |
|
3097 |
next_nonstatic_short_offset = next_nonstatic_word_offset + |
|
3098 |
(nonstatic_word_count * BytesPerInt); |
|
3099 |
next_nonstatic_byte_offset = next_nonstatic_short_offset + |
|
3100 |
(nonstatic_short_count * BytesPerShort); |
|
3101 |
next_nonstatic_type_offset = align_size_up((next_nonstatic_byte_offset + |
|
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3102 |
nonstatic_byte_count ), heapOopSize ); |
1 | 3103 |
orig_nonstatic_field_size = nonstatic_field_size + |
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3104 |
((next_nonstatic_type_offset - first_nonstatic_field_offset)/heapOopSize); |
1 | 3105 |
} |
3106 |
#endif |
|
3107 |
bool compact_fields = CompactFields; |
|
3108 |
int allocation_style = FieldsAllocationStyle; |
|
5250
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3109 |
if( allocation_style < 0 || allocation_style > 2 ) { // Out of range? |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3110 |
assert(false, "0 <= FieldsAllocationStyle <= 2"); |
1 | 3111 |
allocation_style = 1; // Optimistic |
3112 |
} |
|
3113 |
||
3114 |
// The next classes have predefined hard-coded fields offsets |
|
3115 |
// (see in JavaClasses::compute_hard_coded_offsets()). |
|
3116 |
// Use default fields allocation order for them. |
|
3117 |
if( (allocation_style != 0 || compact_fields ) && class_loader.is_null() && |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3118 |
(class_name == vmSymbols::java_lang_AssertionStatusDirectives() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3119 |
class_name == vmSymbols::java_lang_Class() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3120 |
class_name == vmSymbols::java_lang_ClassLoader() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3121 |
class_name == vmSymbols::java_lang_ref_Reference() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3122 |
class_name == vmSymbols::java_lang_ref_SoftReference() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3123 |
class_name == vmSymbols::java_lang_StackTraceElement() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3124 |
class_name == vmSymbols::java_lang_String() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3125 |
class_name == vmSymbols::java_lang_Throwable() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3126 |
class_name == vmSymbols::java_lang_Boolean() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3127 |
class_name == vmSymbols::java_lang_Character() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3128 |
class_name == vmSymbols::java_lang_Float() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3129 |
class_name == vmSymbols::java_lang_Double() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3130 |
class_name == vmSymbols::java_lang_Byte() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3131 |
class_name == vmSymbols::java_lang_Short() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3132 |
class_name == vmSymbols::java_lang_Integer() || |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3133 |
class_name == vmSymbols::java_lang_Long())) { |
1 | 3134 |
allocation_style = 0; // Allocate oops first |
3135 |
compact_fields = false; // Don't compact fields |
|
3136 |
} |
|
3137 |
||
3138 |
if( allocation_style == 0 ) { |
|
3139 |
// Fields order: oops, longs/doubles, ints, shorts/chars, bytes |
|
3140 |
next_nonstatic_oop_offset = next_nonstatic_field_offset; |
|
3141 |
next_nonstatic_double_offset = next_nonstatic_oop_offset + |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3142 |
(nonstatic_oop_count * heapOopSize); |
1 | 3143 |
} else if( allocation_style == 1 ) { |
3144 |
// Fields order: longs/doubles, ints, shorts/chars, bytes, oops |
|
3145 |
next_nonstatic_double_offset = next_nonstatic_field_offset; |
|
5250
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3146 |
} else if( allocation_style == 2 ) { |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3147 |
// Fields allocation: oops fields in super and sub classes are together. |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3148 |
if( nonstatic_field_size > 0 && super_klass() != NULL && |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3149 |
super_klass->nonstatic_oop_map_size() > 0 ) { |
10009
9fa7d67d09fe
7058036: FieldsAllocationStyle=2 does not work in 32-bit VM
kvn
parents:
9172
diff
changeset
|
3150 |
int map_count = super_klass->nonstatic_oop_map_count(); |
5250
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3151 |
OopMapBlock* first_map = super_klass->start_of_nonstatic_oop_maps(); |
10009
9fa7d67d09fe
7058036: FieldsAllocationStyle=2 does not work in 32-bit VM
kvn
parents:
9172
diff
changeset
|
3152 |
OopMapBlock* last_map = first_map + map_count - 1; |
5250
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3153 |
int next_offset = last_map->offset() + (last_map->count() * heapOopSize); |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3154 |
if (next_offset == next_nonstatic_field_offset) { |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3155 |
allocation_style = 0; // allocate oops first |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3156 |
next_nonstatic_oop_offset = next_nonstatic_field_offset; |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3157 |
next_nonstatic_double_offset = next_nonstatic_oop_offset + |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3158 |
(nonstatic_oop_count * heapOopSize); |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3159 |
} |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3160 |
} |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3161 |
if( allocation_style == 2 ) { |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3162 |
allocation_style = 1; // allocate oops last |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3163 |
next_nonstatic_double_offset = next_nonstatic_field_offset; |
ea743ca75cd9
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
4573
diff
changeset
|
3164 |
} |
1 | 3165 |
} else { |
3166 |
ShouldNotReachHere(); |
|
3167 |
} |
|
3168 |
||
3169 |
int nonstatic_oop_space_count = 0; |
|
3170 |
int nonstatic_word_space_count = 0; |
|
3171 |
int nonstatic_short_space_count = 0; |
|
3172 |
int nonstatic_byte_space_count = 0; |
|
3173 |
int nonstatic_oop_space_offset; |
|
3174 |
int nonstatic_word_space_offset; |
|
3175 |
int nonstatic_short_space_offset; |
|
3176 |
int nonstatic_byte_space_offset; |
|
3177 |
||
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3178 |
if( nonstatic_double_count > 0 ) { |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3179 |
int offset = next_nonstatic_double_offset; |
1 | 3180 |
next_nonstatic_double_offset = align_size_up(offset, BytesPerLong); |
3181 |
if( compact_fields && offset != next_nonstatic_double_offset ) { |
|
3182 |
// Allocate available fields into the gap before double field. |
|
3183 |
int length = next_nonstatic_double_offset - offset; |
|
3184 |
assert(length == BytesPerInt, ""); |
|
3185 |
nonstatic_word_space_offset = offset; |
|
3186 |
if( nonstatic_word_count > 0 ) { |
|
3187 |
nonstatic_word_count -= 1; |
|
3188 |
nonstatic_word_space_count = 1; // Only one will fit |
|
3189 |
length -= BytesPerInt; |
|
3190 |
offset += BytesPerInt; |
|
3191 |
} |
|
3192 |
nonstatic_short_space_offset = offset; |
|
3193 |
while( length >= BytesPerShort && nonstatic_short_count > 0 ) { |
|
3194 |
nonstatic_short_count -= 1; |
|
3195 |
nonstatic_short_space_count += 1; |
|
3196 |
length -= BytesPerShort; |
|
3197 |
offset += BytesPerShort; |
|
3198 |
} |
|
3199 |
nonstatic_byte_space_offset = offset; |
|
3200 |
while( length > 0 && nonstatic_byte_count > 0 ) { |
|
3201 |
nonstatic_byte_count -= 1; |
|
3202 |
nonstatic_byte_space_count += 1; |
|
3203 |
length -= 1; |
|
3204 |
} |
|
3205 |
// Allocate oop field in the gap if there are no other fields for that. |
|
3206 |
nonstatic_oop_space_offset = offset; |
|
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3207 |
if( length >= heapOopSize && nonstatic_oop_count > 0 && |
1 | 3208 |
allocation_style != 0 ) { // when oop fields not first |
3209 |
nonstatic_oop_count -= 1; |
|
3210 |
nonstatic_oop_space_count = 1; // Only one will fit |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3211 |
length -= heapOopSize; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3212 |
offset += heapOopSize; |
1 | 3213 |
} |
3214 |
} |
|
3215 |
} |
|
3216 |
||
3217 |
next_nonstatic_word_offset = next_nonstatic_double_offset + |
|
3218 |
(nonstatic_double_count * BytesPerLong); |
|
3219 |
next_nonstatic_short_offset = next_nonstatic_word_offset + |
|
3220 |
(nonstatic_word_count * BytesPerInt); |
|
3221 |
next_nonstatic_byte_offset = next_nonstatic_short_offset + |
|
3222 |
(nonstatic_short_count * BytesPerShort); |
|
3223 |
||
3224 |
int notaligned_offset; |
|
3225 |
if( allocation_style == 0 ) { |
|
3226 |
notaligned_offset = next_nonstatic_byte_offset + nonstatic_byte_count; |
|
3227 |
} else { // allocation_style == 1 |
|
3228 |
next_nonstatic_oop_offset = next_nonstatic_byte_offset + nonstatic_byte_count; |
|
3229 |
if( nonstatic_oop_count > 0 ) { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3230 |
next_nonstatic_oop_offset = align_size_up(next_nonstatic_oop_offset, heapOopSize); |
1 | 3231 |
} |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3232 |
notaligned_offset = next_nonstatic_oop_offset + (nonstatic_oop_count * heapOopSize); |
1 | 3233 |
} |
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3234 |
next_nonstatic_type_offset = align_size_up(notaligned_offset, heapOopSize ); |
1 | 3235 |
nonstatic_field_size = nonstatic_field_size + ((next_nonstatic_type_offset |
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3236 |
- first_nonstatic_field_offset)/heapOopSize); |
1 | 3237 |
|
3238 |
// Iterate over fields again and compute correct offsets. |
|
3239 |
// The field allocation type was temporarily stored in the offset slot. |
|
3240 |
// oop fields are located before non-oop fields (static and non-static). |
|
10546 | 3241 |
for (AllFieldStream fs(fields, cp); !fs.done(); fs.next()) { |
1 | 3242 |
int real_offset; |
10546 | 3243 |
FieldAllocationType atype = (FieldAllocationType) fs.offset(); |
1 | 3244 |
switch (atype) { |
3245 |
case STATIC_OOP: |
|
3246 |
real_offset = next_static_oop_offset; |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3247 |
next_static_oop_offset += heapOopSize; |
1 | 3248 |
break; |
3249 |
case STATIC_BYTE: |
|
3250 |
real_offset = next_static_byte_offset; |
|
3251 |
next_static_byte_offset += 1; |
|
3252 |
break; |
|
3253 |
case STATIC_SHORT: |
|
3254 |
real_offset = next_static_short_offset; |
|
3255 |
next_static_short_offset += BytesPerShort; |
|
3256 |
break; |
|
3257 |
case STATIC_WORD: |
|
3258 |
real_offset = next_static_word_offset; |
|
3259 |
next_static_word_offset += BytesPerInt; |
|
3260 |
break; |
|
3261 |
case STATIC_DOUBLE: |
|
3262 |
real_offset = next_static_double_offset; |
|
3263 |
next_static_double_offset += BytesPerLong; |
|
3264 |
break; |
|
3265 |
case NONSTATIC_OOP: |
|
3266 |
if( nonstatic_oop_space_count > 0 ) { |
|
3267 |
real_offset = nonstatic_oop_space_offset; |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3268 |
nonstatic_oop_space_offset += heapOopSize; |
1 | 3269 |
nonstatic_oop_space_count -= 1; |
3270 |
} else { |
|
3271 |
real_offset = next_nonstatic_oop_offset; |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
339
diff
changeset
|
3272 |
next_nonstatic_oop_offset += heapOopSize; |
1 | 3273 |
} |
3274 |
// Update oop maps |
|
3275 |
if( nonstatic_oop_map_count > 0 && |
|
3276 |
nonstatic_oop_offsets[nonstatic_oop_map_count - 1] == |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3277 |
real_offset - |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3278 |
int(nonstatic_oop_counts[nonstatic_oop_map_count - 1]) * |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3279 |
heapOopSize ) { |
1 | 3280 |
// Extend current oop map |
3693 | 3281 |
nonstatic_oop_counts[nonstatic_oop_map_count - 1] += 1; |
1 | 3282 |
} else { |
3283 |
// Create new oop map |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3284 |
nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset; |
3693 | 3285 |
nonstatic_oop_counts [nonstatic_oop_map_count] = 1; |
1 | 3286 |
nonstatic_oop_map_count += 1; |
3287 |
if( first_nonstatic_oop_offset == 0 ) { // Undefined |
|
3288 |
first_nonstatic_oop_offset = real_offset; |
|
3289 |
} |
|
3290 |
} |
|
3291 |
break; |
|
3292 |
case NONSTATIC_BYTE: |
|
3293 |
if( nonstatic_byte_space_count > 0 ) { |
|
3294 |
real_offset = nonstatic_byte_space_offset; |
|
3295 |
nonstatic_byte_space_offset += 1; |
|
3296 |
nonstatic_byte_space_count -= 1; |
|
3297 |
} else { |
|
3298 |
real_offset = next_nonstatic_byte_offset; |
|
3299 |
next_nonstatic_byte_offset += 1; |
|
3300 |
} |
|
3301 |
break; |
|
3302 |
case NONSTATIC_SHORT: |
|
3303 |
if( nonstatic_short_space_count > 0 ) { |
|
3304 |
real_offset = nonstatic_short_space_offset; |
|
3305 |
nonstatic_short_space_offset += BytesPerShort; |
|
3306 |
nonstatic_short_space_count -= 1; |
|
3307 |
} else { |
|
3308 |
real_offset = next_nonstatic_short_offset; |
|
3309 |
next_nonstatic_short_offset += BytesPerShort; |
|
3310 |
} |
|
3311 |
break; |
|
3312 |
case NONSTATIC_WORD: |
|
3313 |
if( nonstatic_word_space_count > 0 ) { |
|
3314 |
real_offset = nonstatic_word_space_offset; |
|
3315 |
nonstatic_word_space_offset += BytesPerInt; |
|
3316 |
nonstatic_word_space_count -= 1; |
|
3317 |
} else { |
|
3318 |
real_offset = next_nonstatic_word_offset; |
|
3319 |
next_nonstatic_word_offset += BytesPerInt; |
|
3320 |
} |
|
3321 |
break; |
|
3322 |
case NONSTATIC_DOUBLE: |
|
3323 |
real_offset = next_nonstatic_double_offset; |
|
3324 |
next_nonstatic_double_offset += BytesPerLong; |
|
3325 |
break; |
|
3326 |
default: |
|
3327 |
ShouldNotReachHere(); |
|
3328 |
} |
|
10546 | 3329 |
fs.set_offset(real_offset); |
1 | 3330 |
} |
3331 |
||
3332 |
// Size of instances |
|
3333 |
int instance_size; |
|
3334 |
||
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3335 |
next_nonstatic_type_offset = align_size_up(notaligned_offset, wordSize ); |
1 | 3336 |
instance_size = align_object_size(next_nonstatic_type_offset / wordSize); |
3337 |
||
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3338 |
assert(instance_size == align_object_size(align_size_up((instanceOopDesc::base_offset_in_bytes() + nonstatic_field_size*heapOopSize), wordSize) / wordSize), "consistent layout helper value"); |
1 | 3339 |
|
3693 | 3340 |
// Number of non-static oop map blocks allocated at end of klass. |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3341 |
const unsigned int total_oop_map_count = |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3342 |
compute_oop_map_count(super_klass, nonstatic_oop_map_count, |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3343 |
first_nonstatic_oop_offset); |
1 | 3344 |
|
3345 |
// Compute reference type |
|
3346 |
ReferenceType rt; |
|
3347 |
if (super_klass() == NULL) { |
|
3348 |
rt = REF_NONE; |
|
3349 |
} else { |
|
3350 |
rt = super_klass->reference_type(); |
|
3351 |
} |
|
3352 |
||
3353 |
// We can now create the basic klassOop for this klass |
|
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
3354 |
klassOop ik = oopFactory::new_instanceKlass(name, vtable_size, itable_size, |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3355 |
static_field_size, |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3356 |
total_oop_map_count, |
12369
48fd3da4025c
7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents:
12231
diff
changeset
|
3357 |
access_flags, |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3358 |
rt, CHECK_(nullHandle)); |
1 | 3359 |
instanceKlassHandle this_klass (THREAD, ik); |
3360 |
||
3693 | 3361 |
assert(this_klass->static_field_size() == static_field_size, "sanity"); |
3362 |
assert(this_klass->nonstatic_oop_map_count() == total_oop_map_count, |
|
3363 |
"sanity"); |
|
1 | 3364 |
|
3365 |
// Fill in information already parsed |
|
3822 | 3366 |
this_klass->set_should_verify_class(verify); |
1 | 3367 |
jint lh = Klass::instance_layout_helper(instance_size, false); |
3368 |
this_klass->set_layout_helper(lh); |
|
3369 |
assert(this_klass->oop_is_instance(), "layout is correct"); |
|
3370 |
assert(this_klass->size_helper() == instance_size, "correct size_helper"); |
|
3371 |
// Not yet: supers are done below to support the new subtype-checking fields |
|
3372 |
//this_klass->set_super(super_klass()); |
|
3373 |
this_klass->set_class_loader(class_loader()); |
|
3374 |
this_klass->set_nonstatic_field_size(nonstatic_field_size); |
|
3822 | 3375 |
this_klass->set_has_nonstatic_fields(has_nonstatic_fields); |
10546 | 3376 |
this_klass->set_static_oop_field_count(fac.count[STATIC_OOP]); |
1 | 3377 |
cp->set_pool_holder(this_klass()); |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3378 |
error_handler.set_in_error(false); // turn off error handler for cp |
1 | 3379 |
this_klass->set_constants(cp()); |
3380 |
this_klass->set_local_interfaces(local_interfaces()); |
|
10546 | 3381 |
this_klass->set_fields(fields(), java_fields_count); |
1 | 3382 |
this_klass->set_methods(methods()); |
3383 |
if (has_final_method) { |
|
3384 |
this_klass->set_has_final_method(); |
|
3385 |
} |
|
3386 |
this_klass->set_method_ordering(method_ordering()); |
|
3824
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
3387 |
// The instanceKlass::_methods_jmethod_ids cache and the |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
3388 |
// instanceKlass::_methods_cached_itable_indices cache are |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
3389 |
// both managed on the assumption that the initial cache |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
3390 |
// size is equal to the number of methods in the class. If |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
3391 |
// that changes, then instanceKlass::idnum_can_increment() |
86e9e4b25bdf
6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents:
3822
diff
changeset
|
3392 |
// has to be changed accordingly. |
1 | 3393 |
this_klass->set_initial_method_idnum(methods->length()); |
3394 |
this_klass->set_name(cp->klass_name_at(this_class_index)); |
|
2534 | 3395 |
if (LinkWellKnownClasses || is_anonymous()) // I am well known to myself |
1661
7cb0f0d385f3
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
1550
diff
changeset
|
3396 |
cp->klass_at_put(this_class_index, this_klass()); // eagerly resolve |
1 | 3397 |
this_klass->set_protection_domain(protection_domain()); |
3398 |
this_klass->set_fields_annotations(fields_annotations()); |
|
3399 |
this_klass->set_methods_annotations(methods_annotations()); |
|
3400 |
this_klass->set_methods_parameter_annotations(methods_parameter_annotations()); |
|
3401 |
this_klass->set_methods_default_annotations(methods_default_annotations()); |
|
3402 |
||
3403 |
this_klass->set_minor_version(minor_version); |
|
3404 |
this_klass->set_major_version(major_version); |
|
3405 |
||
3273
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3406 |
// Set up methodOop::intrinsic_id as soon as we know the names of methods. |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3407 |
// (We used to do this lazily, but now we query it in Rewriter, |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3408 |
// which is eagerly done for every method, so we might as well do it now, |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3409 |
// when everything is fresh in memory.) |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3410 |
if (methodOopDesc::klass_id_for_intrinsics(this_klass->as_klassOop()) != vmSymbols::NO_SID) { |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3411 |
for (int j = 0; j < methods->length(); j++) { |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3412 |
((methodOop)methods->obj_at(j))->init_intrinsic_id(); |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3413 |
} |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3414 |
} |
6acf7084b1d3
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
2534
diff
changeset
|
3415 |
|
1 | 3416 |
if (cached_class_file_bytes != NULL) { |
3417 |
// JVMTI: we have an instanceKlass now, tell it about the cached bytes |
|
3418 |
this_klass->set_cached_class_file(cached_class_file_bytes, |
|
3419 |
cached_class_file_length); |
|
3420 |
} |
|
3421 |
||
3422 |
// Miranda methods |
|
3423 |
if ((num_miranda_methods > 0) || |
|
3424 |
// if this class introduced new miranda methods or |
|
3425 |
(super_klass.not_null() && (super_klass->has_miranda_methods())) |
|
3426 |
// super class exists and this class inherited miranda methods |
|
3427 |
) { |
|
3428 |
this_klass->set_has_miranda_methods(); // then set a flag |
|
3429 |
} |
|
3430 |
||
3431 |
// Additional attributes |
|
3432 |
parse_classfile_attributes(cp, this_klass, CHECK_(nullHandle)); |
|
3433 |
||
3434 |
// Make sure this is the end of class file stream |
|
3435 |
guarantee_property(cfs->at_eos(), "Extra bytes at the end of class file %s", CHECK_(nullHandle)); |
|
3436 |
||
3437 |
// VerifyOops believes that once this has been set, the object is completely loaded. |
|
3438 |
// Compute transitive closure of interfaces this class implements |
|
3439 |
this_klass->set_transitive_interfaces(transitive_interfaces()); |
|
3440 |
||
3441 |
// Fill in information needed to compute superclasses. |
|
3442 |
this_klass->initialize_supers(super_klass(), CHECK_(nullHandle)); |
|
3443 |
||
3444 |
// Initialize itable offset tables |
|
3445 |
klassItable::setup_itable_offset_table(this_klass); |
|
3446 |
||
3447 |
// Do final class setup |
|
3693 | 3448 |
fill_oop_maps(this_klass, nonstatic_oop_map_count, nonstatic_oop_offsets, nonstatic_oop_counts); |
1 | 3449 |
|
3450 |
set_precomputed_flags(this_klass); |
|
3451 |
||
3452 |
// reinitialize modifiers, using the InnerClasses attribute |
|
3453 |
int computed_modifiers = this_klass->compute_modifier_flags(CHECK_(nullHandle)); |
|
3454 |
this_klass->set_modifier_flags(computed_modifiers); |
|
3455 |
||
3456 |
// check if this class can access its super class |
|
3457 |
check_super_class_access(this_klass, CHECK_(nullHandle)); |
|
3458 |
||
3459 |
// check if this class can access its superinterfaces |
|
3460 |
check_super_interface_access(this_klass, CHECK_(nullHandle)); |
|
3461 |
||
3462 |
// check if this class overrides any final method |
|
3463 |
check_final_method_override(this_klass, CHECK_(nullHandle)); |
|
3464 |
||
3465 |
// check that if this class is an interface then it doesn't have static methods |
|
3466 |
if (this_klass->is_interface()) { |
|
3467 |
check_illegal_static_method(this_klass, CHECK_(nullHandle)); |
|
3468 |
} |
|
3469 |
||
8725
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
3470 |
// Allocate mirror and initialize static fields |
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
3471 |
java_lang_Class::create_mirror(this_klass, CHECK_(nullHandle)); |
8c1e3dd5fe1b
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
8676
diff
changeset
|
3472 |
|
1 | 3473 |
ClassLoadingService::notify_class_loaded(instanceKlass::cast(this_klass()), |
3474 |
false /* not shared class */); |
|
3475 |
||
3476 |
if (TraceClassLoading) { |
|
3477 |
// print in a single call to reduce interleaving of output |
|
3478 |
if (cfs->source() != NULL) { |
|
3479 |
tty->print("[Loaded %s from %s]\n", this_klass->external_name(), |
|
3480 |
cfs->source()); |
|
3481 |
} else if (class_loader.is_null()) { |
|
3482 |
if (THREAD->is_Java_thread()) { |
|
3483 |
klassOop caller = ((JavaThread*)THREAD)->security_get_caller_class(1); |
|
3484 |
tty->print("[Loaded %s by instance of %s]\n", |
|
3485 |
this_klass->external_name(), |
|
3486 |
instanceKlass::cast(caller)->external_name()); |
|
3487 |
} else { |
|
3488 |
tty->print("[Loaded %s]\n", this_klass->external_name()); |
|
3489 |
} |
|
3490 |
} else { |
|
3491 |
ResourceMark rm; |
|
3492 |
tty->print("[Loaded %s from %s]\n", this_klass->external_name(), |
|
3493 |
instanceKlass::cast(class_loader->klass())->external_name()); |
|
3494 |
} |
|
3495 |
} |
|
3496 |
||
3497 |
if (TraceClassResolution) { |
|
3498 |
// print out the superclass. |
|
3499 |
const char * from = Klass::cast(this_klass())->external_name(); |
|
3500 |
if (this_klass->java_super() != NULL) { |
|
2269
ee9da33d43ab
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
2264
diff
changeset
|
3501 |
tty->print("RESOLVE %s %s (super)\n", from, instanceKlass::cast(this_klass->java_super())->external_name()); |
1 | 3502 |
} |
3503 |
// print out each of the interface classes referred to by this class. |
|
3504 |
objArrayHandle local_interfaces(THREAD, this_klass->local_interfaces()); |
|
3505 |
if (!local_interfaces.is_null()) { |
|
3506 |
int length = local_interfaces->length(); |
|
3507 |
for (int i = 0; i < length; i++) { |
|
3508 |
klassOop k = klassOop(local_interfaces->obj_at(i)); |
|
3509 |
instanceKlass* to_class = instanceKlass::cast(k); |
|
3510 |
const char * to = to_class->external_name(); |
|
2269
ee9da33d43ab
6603316: Improve instrumentation for classes loaded at startup
acorn
parents:
2264
diff
changeset
|
3511 |
tty->print("RESOLVE %s %s (interface)\n", from, to); |
1 | 3512 |
} |
3513 |
} |
|
3514 |
} |
|
3515 |
||
3516 |
#ifndef PRODUCT |
|
3517 |
if( PrintCompactFieldsSavings ) { |
|
3518 |
if( nonstatic_field_size < orig_nonstatic_field_size ) { |
|
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3519 |
tty->print("[Saved %d of %d bytes in %s]\n", |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3520 |
(orig_nonstatic_field_size - nonstatic_field_size)*heapOopSize, |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3521 |
orig_nonstatic_field_size*heapOopSize, |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3522 |
this_klass->external_name()); |
1 | 3523 |
} else if( nonstatic_field_size > orig_nonstatic_field_size ) { |
591
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3524 |
tty->print("[Wasted %d over %d bytes in %s]\n", |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3525 |
(nonstatic_field_size - orig_nonstatic_field_size)*heapOopSize, |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3526 |
orig_nonstatic_field_size*heapOopSize, |
04d2e26e6d69
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
383
diff
changeset
|
3527 |
this_klass->external_name()); |
1 | 3528 |
} |
3529 |
} |
|
3530 |
#endif |
|
3531 |
||
3532 |
// preserve result across HandleMark |
|
3533 |
preserve_this_klass = this_klass(); |
|
3534 |
} |
|
3535 |
||
3536 |
// Create new handle outside HandleMark |
|
3537 |
instanceKlassHandle this_klass (THREAD, preserve_this_klass); |
|
3538 |
debug_only(this_klass->as_klassOop()->verify();) |
|
3539 |
||
3540 |
return this_klass; |
|
3541 |
} |
|
3542 |
||
3543 |
||
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3544 |
unsigned int |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3545 |
ClassFileParser::compute_oop_map_count(instanceKlassHandle super, |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3546 |
unsigned int nonstatic_oop_map_count, |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3547 |
int first_nonstatic_oop_offset) { |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3548 |
unsigned int map_count = |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3549 |
super.is_null() ? 0 : super->nonstatic_oop_map_count(); |
1 | 3550 |
if (nonstatic_oop_map_count > 0) { |
3551 |
// We have oops to add to map |
|
3693 | 3552 |
if (map_count == 0) { |
3553 |
map_count = nonstatic_oop_map_count; |
|
1 | 3554 |
} else { |
3693 | 3555 |
// Check whether we should add a new map block or whether the last one can |
3556 |
// be extended |
|
3557 |
OopMapBlock* const first_map = super->start_of_nonstatic_oop_maps(); |
|
3558 |
OopMapBlock* const last_map = first_map + map_count - 1; |
|
3559 |
||
3560 |
int next_offset = last_map->offset() + last_map->count() * heapOopSize; |
|
1 | 3561 |
if (next_offset == first_nonstatic_oop_offset) { |
3562 |
// There is no gap bettwen superklass's last oop field and first |
|
3563 |
// local oop field, merge maps. |
|
3564 |
nonstatic_oop_map_count -= 1; |
|
3565 |
} else { |
|
3566 |
// Superklass didn't end with a oop field, add extra maps |
|
3693 | 3567 |
assert(next_offset < first_nonstatic_oop_offset, "just checking"); |
1 | 3568 |
} |
3693 | 3569 |
map_count += nonstatic_oop_map_count; |
1 | 3570 |
} |
3571 |
} |
|
3693 | 3572 |
return map_count; |
1 | 3573 |
} |
3574 |
||
3575 |
||
3576 |
void ClassFileParser::fill_oop_maps(instanceKlassHandle k, |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3577 |
unsigned int nonstatic_oop_map_count, |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3578 |
int* nonstatic_oop_offsets, |
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3579 |
unsigned int* nonstatic_oop_counts) { |
1 | 3580 |
OopMapBlock* this_oop_map = k->start_of_nonstatic_oop_maps(); |
3693 | 3581 |
const instanceKlass* const super = k->superklass(); |
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
3582 |
const unsigned int super_count = super ? super->nonstatic_oop_map_count() : 0; |
3693 | 3583 |
if (super_count > 0) { |
3584 |
// Copy maps from superklass |
|
1 | 3585 |
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
|
3586 |
for (unsigned int i = 0; i < super_count; ++i) { |
1 | 3587 |
*this_oop_map++ = *super_oop_map++; |
3588 |
} |
|
3589 |
} |
|
3693 | 3590 |
|
1 | 3591 |
if (nonstatic_oop_map_count > 0) { |
3693 | 3592 |
if (super_count + nonstatic_oop_map_count > k->nonstatic_oop_map_count()) { |
3593 |
// The counts differ because there is no gap between superklass's last oop |
|
3594 |
// field and the first local oop field. Extend the last oop map copied |
|
1 | 3595 |
// from the superklass instead of creating new one. |
3596 |
nonstatic_oop_map_count--; |
|
3597 |
nonstatic_oop_offsets++; |
|
3598 |
this_oop_map--; |
|
3693 | 3599 |
this_oop_map->set_count(this_oop_map->count() + *nonstatic_oop_counts++); |
1 | 3600 |
this_oop_map++; |
3601 |
} |
|
3693 | 3602 |
|
1 | 3603 |
// Add new map blocks, fill them |
3604 |
while (nonstatic_oop_map_count-- > 0) { |
|
3605 |
this_oop_map->set_offset(*nonstatic_oop_offsets++); |
|
3693 | 3606 |
this_oop_map->set_count(*nonstatic_oop_counts++); |
1 | 3607 |
this_oop_map++; |
3608 |
} |
|
3693 | 3609 |
assert(k->start_of_nonstatic_oop_maps() + k->nonstatic_oop_map_count() == |
3610 |
this_oop_map, "sanity"); |
|
1 | 3611 |
} |
3612 |
} |
|
3613 |
||
3614 |
||
3615 |
void ClassFileParser::set_precomputed_flags(instanceKlassHandle k) { |
|
3616 |
klassOop super = k->super(); |
|
3617 |
||
3618 |
// Check if this klass has an empty finalize method (i.e. one with return bytecode only), |
|
3619 |
// in which case we don't have to register objects as finalizable |
|
3620 |
if (!_has_empty_finalizer) { |
|
3621 |
if (_has_finalizer || |
|
3622 |
(super != NULL && super->klass_part()->has_finalizer())) { |
|
3623 |
k->set_has_finalizer(); |
|
3624 |
} |
|
3625 |
} |
|
3626 |
||
3627 |
#ifdef ASSERT |
|
3628 |
bool f = false; |
|
3629 |
methodOop m = k->lookup_method(vmSymbols::finalize_method_name(), |
|
3630 |
vmSymbols::void_method_signature()); |
|
3631 |
if (m != NULL && !m->is_empty_method()) { |
|
3632 |
f = true; |
|
3633 |
} |
|
3634 |
assert(f == k->has_finalizer(), "inconsistent has_finalizer"); |
|
3635 |
#endif |
|
3636 |
||
3637 |
// Check if this klass supports the java.lang.Cloneable interface |
|
4571 | 3638 |
if (SystemDictionary::Cloneable_klass_loaded()) { |
3639 |
if (k->is_subtype_of(SystemDictionary::Cloneable_klass())) { |
|
1 | 3640 |
k->set_is_cloneable(); |
3641 |
} |
|
3642 |
} |
|
3643 |
||
3644 |
// Check if this klass has a vanilla default constructor |
|
3645 |
if (super == NULL) { |
|
3646 |
// java.lang.Object has empty default constructor |
|
3647 |
k->set_has_vanilla_constructor(); |
|
3648 |
} else { |
|
3649 |
if (Klass::cast(super)->has_vanilla_constructor() && |
|
3650 |
_has_vanilla_constructor) { |
|
3651 |
k->set_has_vanilla_constructor(); |
|
3652 |
} |
|
3653 |
#ifdef ASSERT |
|
3654 |
bool v = false; |
|
3655 |
if (Klass::cast(super)->has_vanilla_constructor()) { |
|
3656 |
methodOop constructor = k->find_method(vmSymbols::object_initializer_name( |
|
3657 |
), vmSymbols::void_method_signature()); |
|
3658 |
if (constructor != NULL && constructor->is_vanilla_constructor()) { |
|
3659 |
v = true; |
|
3660 |
} |
|
3661 |
} |
|
3662 |
assert(v == k->has_vanilla_constructor(), "inconsistent has_vanilla_constructor"); |
|
3663 |
#endif |
|
3664 |
} |
|
3665 |
||
3666 |
// If it cannot be fast-path allocated, set a bit in the layout helper. |
|
3667 |
// See documentation of instanceKlass::can_be_fastpath_allocated(). |
|
3668 |
assert(k->size_helper() > 0, "layout_helper is initialized"); |
|
3669 |
if ((!RegisterFinalizersAtInit && k->has_finalizer()) |
|
3670 |
|| k->is_abstract() || k->is_interface() |
|
3671 |
|| (k->name() == vmSymbols::java_lang_Class() |
|
3672 |
&& k->class_loader() == NULL) |
|
3673 |
|| k->size_helper() >= FastAllocateSizeLimit) { |
|
3674 |
// Forbid fast-path allocation. |
|
3675 |
jint lh = Klass::instance_layout_helper(k->size_helper(), true); |
|
3676 |
k->set_layout_helper(lh); |
|
3677 |
} |
|
3678 |
} |
|
3679 |
||
3680 |
||
3681 |
// utility method for appending and array with check for duplicates |
|
3682 |
||
3683 |
void append_interfaces(objArrayHandle result, int& index, objArrayOop ifs) { |
|
3684 |
// iterate over new interfaces |
|
3685 |
for (int i = 0; i < ifs->length(); i++) { |
|
3686 |
oop e = ifs->obj_at(i); |
|
3687 |
assert(e->is_klass() && instanceKlass::cast(klassOop(e))->is_interface(), "just checking"); |
|
3688 |
// check for duplicates |
|
3689 |
bool duplicate = false; |
|
3690 |
for (int j = 0; j < index; j++) { |
|
3691 |
if (result->obj_at(j) == e) { |
|
3692 |
duplicate = true; |
|
3693 |
break; |
|
3694 |
} |
|
3695 |
} |
|
3696 |
// add new interface |
|
3697 |
if (!duplicate) { |
|
3698 |
result->obj_at_put(index++, e); |
|
3699 |
} |
|
3700 |
} |
|
3701 |
} |
|
3702 |
||
3703 |
objArrayHandle ClassFileParser::compute_transitive_interfaces(instanceKlassHandle super, objArrayHandle local_ifs, TRAPS) { |
|
3704 |
// Compute maximum size for transitive interfaces |
|
3705 |
int max_transitive_size = 0; |
|
3706 |
int super_size = 0; |
|
3707 |
// Add superclass transitive interfaces size |
|
3708 |
if (super.not_null()) { |
|
3709 |
super_size = super->transitive_interfaces()->length(); |
|
3710 |
max_transitive_size += super_size; |
|
3711 |
} |
|
3712 |
// Add local interfaces' super interfaces |
|
3713 |
int local_size = local_ifs->length(); |
|
3714 |
for (int i = 0; i < local_size; i++) { |
|
3715 |
klassOop l = klassOop(local_ifs->obj_at(i)); |
|
3716 |
max_transitive_size += instanceKlass::cast(l)->transitive_interfaces()->length(); |
|
3717 |
} |
|
3718 |
// Finally add local interfaces |
|
3719 |
max_transitive_size += local_size; |
|
3720 |
// Construct array |
|
3721 |
objArrayHandle result; |
|
3722 |
if (max_transitive_size == 0) { |
|
3723 |
// no interfaces, use canonicalized array |
|
3724 |
result = objArrayHandle(THREAD, Universe::the_empty_system_obj_array()); |
|
3725 |
} else if (max_transitive_size == super_size) { |
|
3726 |
// no new local interfaces added, share superklass' transitive interface array |
|
3727 |
result = objArrayHandle(THREAD, super->transitive_interfaces()); |
|
3728 |
} else if (max_transitive_size == local_size) { |
|
3729 |
// only local interfaces added, share local interface array |
|
3730 |
result = local_ifs; |
|
3731 |
} else { |
|
3732 |
objArrayHandle nullHandle; |
|
3733 |
objArrayOop new_objarray = oopFactory::new_system_objArray(max_transitive_size, CHECK_(nullHandle)); |
|
3734 |
result = objArrayHandle(THREAD, new_objarray); |
|
3735 |
int index = 0; |
|
3736 |
// Copy down from superclass |
|
3737 |
if (super.not_null()) { |
|
3738 |
append_interfaces(result, index, super->transitive_interfaces()); |
|
3739 |
} |
|
3740 |
// Copy down from local interfaces' superinterfaces |
|
3741 |
for (int i = 0; i < local_ifs->length(); i++) { |
|
3742 |
klassOop l = klassOop(local_ifs->obj_at(i)); |
|
3743 |
append_interfaces(result, index, instanceKlass::cast(l)->transitive_interfaces()); |
|
3744 |
} |
|
3745 |
// Finally add local interfaces |
|
3746 |
append_interfaces(result, index, local_ifs()); |
|
3747 |
||
3748 |
// Check if duplicates were removed |
|
3749 |
if (index != max_transitive_size) { |
|
3750 |
assert(index < max_transitive_size, "just checking"); |
|
3751 |
objArrayOop new_result = oopFactory::new_system_objArray(index, CHECK_(nullHandle)); |
|
3752 |
for (int i = 0; i < index; i++) { |
|
3753 |
oop e = result->obj_at(i); |
|
3754 |
assert(e != NULL, "just checking"); |
|
3755 |
new_result->obj_at_put(i, e); |
|
3756 |
} |
|
3757 |
result = objArrayHandle(THREAD, new_result); |
|
3758 |
} |
|
3759 |
} |
|
3760 |
return result; |
|
3761 |
} |
|
3762 |
||
3763 |
||
3764 |
void ClassFileParser::check_super_class_access(instanceKlassHandle this_klass, TRAPS) { |
|
3765 |
klassOop super = this_klass->super(); |
|
3766 |
if ((super != NULL) && |
|
3767 |
(!Reflection::verify_class_access(this_klass->as_klassOop(), super, false))) { |
|
3768 |
ResourceMark rm(THREAD); |
|
3769 |
Exceptions::fthrow( |
|
3770 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3771 |
vmSymbols::java_lang_IllegalAccessError(), |
1 | 3772 |
"class %s cannot access its superclass %s", |
3773 |
this_klass->external_name(), |
|
3774 |
instanceKlass::cast(super)->external_name() |
|
3775 |
); |
|
3776 |
return; |
|
3777 |
} |
|
3778 |
} |
|
3779 |
||
3780 |
||
3781 |
void ClassFileParser::check_super_interface_access(instanceKlassHandle this_klass, TRAPS) { |
|
3782 |
objArrayHandle local_interfaces (THREAD, this_klass->local_interfaces()); |
|
3783 |
int lng = local_interfaces->length(); |
|
3784 |
for (int i = lng - 1; i >= 0; i--) { |
|
3785 |
klassOop k = klassOop(local_interfaces->obj_at(i)); |
|
3786 |
assert (k != NULL && Klass::cast(k)->is_interface(), "invalid interface"); |
|
3787 |
if (!Reflection::verify_class_access(this_klass->as_klassOop(), k, false)) { |
|
3788 |
ResourceMark rm(THREAD); |
|
3789 |
Exceptions::fthrow( |
|
3790 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3791 |
vmSymbols::java_lang_IllegalAccessError(), |
1 | 3792 |
"class %s cannot access its superinterface %s", |
3793 |
this_klass->external_name(), |
|
3794 |
instanceKlass::cast(k)->external_name() |
|
3795 |
); |
|
3796 |
return; |
|
3797 |
} |
|
3798 |
} |
|
3799 |
} |
|
3800 |
||
3801 |
||
3802 |
void ClassFileParser::check_final_method_override(instanceKlassHandle this_klass, TRAPS) { |
|
3803 |
objArrayHandle methods (THREAD, this_klass->methods()); |
|
3804 |
int num_methods = methods->length(); |
|
3805 |
||
3806 |
// go thru each method and check if it overrides a final method |
|
3807 |
for (int index = 0; index < num_methods; index++) { |
|
3808 |
methodOop m = (methodOop)methods->obj_at(index); |
|
3809 |
||
3810 |
// skip private, static and <init> methods |
|
3811 |
if ((!m->is_private()) && |
|
3812 |
(!m->is_static()) && |
|
3813 |
(m->name() != vmSymbols::object_initializer_name())) { |
|
3814 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3815 |
Symbol* name = m->name(); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3816 |
Symbol* signature = m->signature(); |
1 | 3817 |
klassOop k = this_klass->super(); |
3818 |
methodOop super_m = NULL; |
|
3819 |
while (k != NULL) { |
|
3820 |
// skip supers that don't have final methods. |
|
3821 |
if (k->klass_part()->has_final_method()) { |
|
3822 |
// lookup a matching method in the super class hierarchy |
|
3823 |
super_m = instanceKlass::cast(k)->lookup_method(name, signature); |
|
3824 |
if (super_m == NULL) { |
|
3825 |
break; // didn't find any match; get out |
|
3826 |
} |
|
3827 |
||
3828 |
if (super_m->is_final() && |
|
3829 |
// matching method in super is final |
|
3830 |
(Reflection::verify_field_access(this_klass->as_klassOop(), |
|
3831 |
super_m->method_holder(), |
|
3832 |
super_m->method_holder(), |
|
3833 |
super_m->access_flags(), false)) |
|
3834 |
// this class can access super final method and therefore override |
|
3835 |
) { |
|
3836 |
ResourceMark rm(THREAD); |
|
3837 |
Exceptions::fthrow( |
|
3838 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3839 |
vmSymbols::java_lang_VerifyError(), |
1 | 3840 |
"class %s overrides final method %s.%s", |
3841 |
this_klass->external_name(), |
|
3842 |
name->as_C_string(), |
|
3843 |
signature->as_C_string() |
|
3844 |
); |
|
3845 |
return; |
|
3846 |
} |
|
3847 |
||
3848 |
// continue to look from super_m's holder's super. |
|
3849 |
k = instanceKlass::cast(super_m->method_holder())->super(); |
|
3850 |
continue; |
|
3851 |
} |
|
3852 |
||
3853 |
k = k->klass_part()->super(); |
|
3854 |
} |
|
3855 |
} |
|
3856 |
} |
|
3857 |
} |
|
3858 |
||
3859 |
||
3860 |
// assumes that this_klass is an interface |
|
3861 |
void ClassFileParser::check_illegal_static_method(instanceKlassHandle this_klass, TRAPS) { |
|
3862 |
assert(this_klass->is_interface(), "not an interface"); |
|
3863 |
objArrayHandle methods (THREAD, this_klass->methods()); |
|
3864 |
int num_methods = methods->length(); |
|
3865 |
||
3866 |
for (int index = 0; index < num_methods; index++) { |
|
3867 |
methodOop m = (methodOop)methods->obj_at(index); |
|
3868 |
// if m is static and not the init method, throw a verify error |
|
3869 |
if ((m->is_static()) && (m->name() != vmSymbols::class_initializer_name())) { |
|
3870 |
ResourceMark rm(THREAD); |
|
3871 |
Exceptions::fthrow( |
|
3872 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3873 |
vmSymbols::java_lang_VerifyError(), |
1 | 3874 |
"Illegal static method %s in interface %s", |
3875 |
m->name()->as_C_string(), |
|
3876 |
this_klass->external_name() |
|
3877 |
); |
|
3878 |
return; |
|
3879 |
} |
|
3880 |
} |
|
3881 |
} |
|
3882 |
||
3883 |
// utility methods for format checking |
|
3884 |
||
3885 |
void ClassFileParser::verify_legal_class_modifiers(jint flags, TRAPS) { |
|
3886 |
if (!_need_verify) { return; } |
|
3887 |
||
3888 |
const bool is_interface = (flags & JVM_ACC_INTERFACE) != 0; |
|
3889 |
const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0; |
|
3890 |
const bool is_final = (flags & JVM_ACC_FINAL) != 0; |
|
3891 |
const bool is_super = (flags & JVM_ACC_SUPER) != 0; |
|
3892 |
const bool is_enum = (flags & JVM_ACC_ENUM) != 0; |
|
3893 |
const bool is_annotation = (flags & JVM_ACC_ANNOTATION) != 0; |
|
3894 |
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
|
3895 |
||
3896 |
if ((is_abstract && is_final) || |
|
3897 |
(is_interface && !is_abstract) || |
|
3898 |
(is_interface && major_gte_15 && (is_super || is_enum)) || |
|
3899 |
(!is_interface && major_gte_15 && is_annotation)) { |
|
3900 |
ResourceMark rm(THREAD); |
|
3901 |
Exceptions::fthrow( |
|
3902 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3903 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 3904 |
"Illegal class modifiers in class %s: 0x%X", |
3905 |
_class_name->as_C_string(), flags |
|
3906 |
); |
|
3907 |
return; |
|
3908 |
} |
|
3909 |
} |
|
3910 |
||
3911 |
bool ClassFileParser::has_illegal_visibility(jint flags) { |
|
3912 |
const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; |
|
3913 |
const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; |
|
3914 |
const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; |
|
3915 |
||
3916 |
return ((is_public && is_protected) || |
|
3917 |
(is_public && is_private) || |
|
3918 |
(is_protected && is_private)); |
|
3919 |
} |
|
3920 |
||
3921 |
bool ClassFileParser::is_supported_version(u2 major, u2 minor) { |
|
4494
1f53dff2f6a5
6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
xlu
parents:
3824
diff
changeset
|
3922 |
u2 max_version = |
1f53dff2f6a5
6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
xlu
parents:
3824
diff
changeset
|
3923 |
JDK_Version::is_gte_jdk17x_version() ? JAVA_MAX_SUPPORTED_VERSION : |
1f53dff2f6a5
6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
xlu
parents:
3824
diff
changeset
|
3924 |
(JDK_Version::is_gte_jdk16x_version() ? JAVA_6_VERSION : JAVA_1_5_VERSION); |
1 | 3925 |
return (major >= JAVA_MIN_SUPPORTED_VERSION) && |
602
92e03692ddd6
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
383
diff
changeset
|
3926 |
(major <= max_version) && |
92e03692ddd6
6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents:
383
diff
changeset
|
3927 |
((major != max_version) || |
1 | 3928 |
(minor <= JAVA_MAX_SUPPORTED_MINOR_VERSION)); |
3929 |
} |
|
3930 |
||
3931 |
void ClassFileParser::verify_legal_field_modifiers( |
|
3932 |
jint flags, bool is_interface, TRAPS) { |
|
3933 |
if (!_need_verify) { return; } |
|
3934 |
||
3935 |
const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; |
|
3936 |
const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0; |
|
3937 |
const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; |
|
3938 |
const bool is_static = (flags & JVM_ACC_STATIC) != 0; |
|
3939 |
const bool is_final = (flags & JVM_ACC_FINAL) != 0; |
|
3940 |
const bool is_volatile = (flags & JVM_ACC_VOLATILE) != 0; |
|
3941 |
const bool is_transient = (flags & JVM_ACC_TRANSIENT) != 0; |
|
3942 |
const bool is_enum = (flags & JVM_ACC_ENUM) != 0; |
|
3943 |
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
|
3944 |
||
3945 |
bool is_illegal = false; |
|
3946 |
||
3947 |
if (is_interface) { |
|
3948 |
if (!is_public || !is_static || !is_final || is_private || |
|
3949 |
is_protected || is_volatile || is_transient || |
|
3950 |
(major_gte_15 && is_enum)) { |
|
3951 |
is_illegal = true; |
|
3952 |
} |
|
3953 |
} else { // not interface |
|
3954 |
if (has_illegal_visibility(flags) || (is_final && is_volatile)) { |
|
3955 |
is_illegal = true; |
|
3956 |
} |
|
3957 |
} |
|
3958 |
||
3959 |
if (is_illegal) { |
|
3960 |
ResourceMark rm(THREAD); |
|
3961 |
Exceptions::fthrow( |
|
3962 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3963 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 3964 |
"Illegal field modifiers in class %s: 0x%X", |
3965 |
_class_name->as_C_string(), flags); |
|
3966 |
return; |
|
3967 |
} |
|
3968 |
} |
|
3969 |
||
3970 |
void ClassFileParser::verify_legal_method_modifiers( |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
3971 |
jint flags, bool is_interface, Symbol* name, TRAPS) { |
1 | 3972 |
if (!_need_verify) { return; } |
3973 |
||
3974 |
const bool is_public = (flags & JVM_ACC_PUBLIC) != 0; |
|
3975 |
const bool is_private = (flags & JVM_ACC_PRIVATE) != 0; |
|
3976 |
const bool is_static = (flags & JVM_ACC_STATIC) != 0; |
|
3977 |
const bool is_final = (flags & JVM_ACC_FINAL) != 0; |
|
3978 |
const bool is_native = (flags & JVM_ACC_NATIVE) != 0; |
|
3979 |
const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0; |
|
3980 |
const bool is_bridge = (flags & JVM_ACC_BRIDGE) != 0; |
|
3981 |
const bool is_strict = (flags & JVM_ACC_STRICT) != 0; |
|
3982 |
const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0; |
|
3983 |
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION; |
|
3984 |
const bool is_initializer = (name == vmSymbols::object_initializer_name()); |
|
3985 |
||
3986 |
bool is_illegal = false; |
|
3987 |
||
3988 |
if (is_interface) { |
|
3989 |
if (!is_abstract || !is_public || is_static || is_final || |
|
3990 |
is_native || (major_gte_15 && (is_synchronized || is_strict))) { |
|
3991 |
is_illegal = true; |
|
3992 |
} |
|
3993 |
} else { // not interface |
|
3994 |
if (is_initializer) { |
|
3995 |
if (is_static || is_final || is_synchronized || is_native || |
|
3996 |
is_abstract || (major_gte_15 && is_bridge)) { |
|
3997 |
is_illegal = true; |
|
3998 |
} |
|
3999 |
} else { // not initializer |
|
4000 |
if (is_abstract) { |
|
4001 |
if ((is_final || is_native || is_private || is_static || |
|
4002 |
(major_gte_15 && (is_synchronized || is_strict)))) { |
|
4003 |
is_illegal = true; |
|
4004 |
} |
|
4005 |
} |
|
4006 |
if (has_illegal_visibility(flags)) { |
|
4007 |
is_illegal = true; |
|
4008 |
} |
|
4009 |
} |
|
4010 |
} |
|
4011 |
||
4012 |
if (is_illegal) { |
|
4013 |
ResourceMark rm(THREAD); |
|
4014 |
Exceptions::fthrow( |
|
4015 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4016 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4017 |
"Method %s in class %s has illegal modifiers: 0x%X", |
4018 |
name->as_C_string(), _class_name->as_C_string(), flags); |
|
4019 |
return; |
|
4020 |
} |
|
4021 |
} |
|
4022 |
||
4023 |
void ClassFileParser::verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) { |
|
4024 |
assert(_need_verify, "only called when _need_verify is true"); |
|
4025 |
int i = 0; |
|
4026 |
int count = length >> 2; |
|
4027 |
for (int k=0; k<count; k++) { |
|
4028 |
unsigned char b0 = buffer[i]; |
|
4029 |
unsigned char b1 = buffer[i+1]; |
|
4030 |
unsigned char b2 = buffer[i+2]; |
|
4031 |
unsigned char b3 = buffer[i+3]; |
|
4032 |
// For an unsigned char v, |
|
4033 |
// (v | v - 1) is < 128 (highest bit 0) for 0 < v < 128; |
|
4034 |
// (v | v - 1) is >= 128 (highest bit 1) for v == 0 or v >= 128. |
|
4035 |
unsigned char res = b0 | b0 - 1 | |
|
4036 |
b1 | b1 - 1 | |
|
4037 |
b2 | b2 - 1 | |
|
4038 |
b3 | b3 - 1; |
|
4039 |
if (res >= 128) break; |
|
4040 |
i += 4; |
|
4041 |
} |
|
4042 |
for(; i < length; i++) { |
|
4043 |
unsigned short c; |
|
4044 |
// no embedded zeros |
|
4045 |
guarantee_property((buffer[i] != 0), "Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4046 |
if(buffer[i] < 128) { |
|
4047 |
continue; |
|
4048 |
} |
|
4049 |
if ((i + 5) < length) { // see if it's legal supplementary character |
|
4050 |
if (UTF8::is_supplementary_character(&buffer[i])) { |
|
4051 |
c = UTF8::get_supplementary_character(&buffer[i]); |
|
4052 |
i += 5; |
|
4053 |
continue; |
|
4054 |
} |
|
4055 |
} |
|
4056 |
switch (buffer[i] >> 4) { |
|
4057 |
default: break; |
|
4058 |
case 0x8: case 0x9: case 0xA: case 0xB: case 0xF: |
|
4059 |
classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4060 |
case 0xC: case 0xD: // 110xxxxx 10xxxxxx |
|
4061 |
c = (buffer[i] & 0x1F) << 6; |
|
4062 |
i++; |
|
4063 |
if ((i < length) && ((buffer[i] & 0xC0) == 0x80)) { |
|
4064 |
c += buffer[i] & 0x3F; |
|
4065 |
if (_major_version <= 47 || c == 0 || c >= 0x80) { |
|
4066 |
// for classes with major > 47, c must a null or a character in its shortest form |
|
4067 |
break; |
|
4068 |
} |
|
4069 |
} |
|
4070 |
classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4071 |
case 0xE: // 1110xxxx 10xxxxxx 10xxxxxx |
|
4072 |
c = (buffer[i] & 0xF) << 12; |
|
4073 |
i += 2; |
|
4074 |
if ((i < length) && ((buffer[i-1] & 0xC0) == 0x80) && ((buffer[i] & 0xC0) == 0x80)) { |
|
4075 |
c += ((buffer[i-1] & 0x3F) << 6) + (buffer[i] & 0x3F); |
|
4076 |
if (_major_version <= 47 || c >= 0x800) { |
|
4077 |
// for classes with major > 47, c must be in its shortest form |
|
4078 |
break; |
|
4079 |
} |
|
4080 |
} |
|
4081 |
classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK); |
|
4082 |
} // end of switch |
|
4083 |
} // end of for |
|
4084 |
} |
|
4085 |
||
4086 |
// Checks if name is a legal class name. |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4087 |
void ClassFileParser::verify_legal_class_name(Symbol* name, TRAPS) { |
1 | 4088 |
if (!_need_verify || _relax_verify) { return; } |
4089 |
||
4090 |
char buf[fixed_buffer_size]; |
|
4091 |
char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4092 |
unsigned int length = name->utf8_length(); |
|
4093 |
bool legal = false; |
|
4094 |
||
4095 |
if (length > 0) { |
|
4096 |
char* p; |
|
4097 |
if (bytes[0] == JVM_SIGNATURE_ARRAY) { |
|
4098 |
p = skip_over_field_signature(bytes, false, length, CHECK); |
|
4099 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4100 |
} else if (_major_version < JAVA_1_5_VERSION) { |
|
4101 |
if (bytes[0] != '<') { |
|
4102 |
p = skip_over_field_name(bytes, true, length); |
|
4103 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4104 |
} |
|
4105 |
} else { |
|
4106 |
// 4900761: relax the constraints based on JSR202 spec |
|
4107 |
// Class names may be drawn from the entire Unicode character set. |
|
4108 |
// Identifiers between '/' must be unqualified names. |
|
4109 |
// The utf8 string has been verified when parsing cpool entries. |
|
4110 |
legal = verify_unqualified_name(bytes, length, LegalClass); |
|
4111 |
} |
|
4112 |
} |
|
4113 |
if (!legal) { |
|
4114 |
ResourceMark rm(THREAD); |
|
4115 |
Exceptions::fthrow( |
|
4116 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4117 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4118 |
"Illegal class name \"%s\" in class file %s", bytes, |
4119 |
_class_name->as_C_string() |
|
4120 |
); |
|
4121 |
return; |
|
4122 |
} |
|
4123 |
} |
|
4124 |
||
4125 |
// Checks if name is a legal field name. |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4126 |
void ClassFileParser::verify_legal_field_name(Symbol* name, TRAPS) { |
1 | 4127 |
if (!_need_verify || _relax_verify) { return; } |
4128 |
||
4129 |
char buf[fixed_buffer_size]; |
|
4130 |
char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4131 |
unsigned int length = name->utf8_length(); |
|
4132 |
bool legal = false; |
|
4133 |
||
4134 |
if (length > 0) { |
|
4135 |
if (_major_version < JAVA_1_5_VERSION) { |
|
4136 |
if (bytes[0] != '<') { |
|
4137 |
char* p = skip_over_field_name(bytes, false, length); |
|
4138 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4139 |
} |
|
4140 |
} else { |
|
4141 |
// 4881221: relax the constraints based on JSR202 spec |
|
4142 |
legal = verify_unqualified_name(bytes, length, LegalField); |
|
4143 |
} |
|
4144 |
} |
|
4145 |
||
4146 |
if (!legal) { |
|
4147 |
ResourceMark rm(THREAD); |
|
4148 |
Exceptions::fthrow( |
|
4149 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4150 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4151 |
"Illegal field name \"%s\" in class %s", bytes, |
4152 |
_class_name->as_C_string() |
|
4153 |
); |
|
4154 |
return; |
|
4155 |
} |
|
4156 |
} |
|
4157 |
||
4158 |
// Checks if name is a legal method name. |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4159 |
void ClassFileParser::verify_legal_method_name(Symbol* name, TRAPS) { |
1 | 4160 |
if (!_need_verify || _relax_verify) { return; } |
4161 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4162 |
assert(name != NULL, "method name is null"); |
1 | 4163 |
char buf[fixed_buffer_size]; |
4164 |
char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4165 |
unsigned int length = name->utf8_length(); |
|
4166 |
bool legal = false; |
|
4167 |
||
4168 |
if (length > 0) { |
|
4169 |
if (bytes[0] == '<') { |
|
4170 |
if (name == vmSymbols::object_initializer_name() || name == vmSymbols::class_initializer_name()) { |
|
4171 |
legal = true; |
|
4172 |
} |
|
4173 |
} else if (_major_version < JAVA_1_5_VERSION) { |
|
4174 |
char* p; |
|
4175 |
p = skip_over_field_name(bytes, false, length); |
|
4176 |
legal = (p != NULL) && ((p - bytes) == (int)length); |
|
4177 |
} else { |
|
4178 |
// 4881221: relax the constraints based on JSR202 spec |
|
4179 |
legal = verify_unqualified_name(bytes, length, LegalMethod); |
|
4180 |
} |
|
4181 |
} |
|
4182 |
||
4183 |
if (!legal) { |
|
4184 |
ResourceMark rm(THREAD); |
|
4185 |
Exceptions::fthrow( |
|
4186 |
THREAD_AND_LOCATION, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4187 |
vmSymbols::java_lang_ClassFormatError(), |
1 | 4188 |
"Illegal method name \"%s\" in class %s", bytes, |
4189 |
_class_name->as_C_string() |
|
4190 |
); |
|
4191 |
return; |
|
4192 |
} |
|
4193 |
} |
|
4194 |
||
4195 |
||
4196 |
// Checks if signature is a legal field signature. |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4197 |
void ClassFileParser::verify_legal_field_signature(Symbol* name, Symbol* signature, TRAPS) { |
1 | 4198 |
if (!_need_verify) { return; } |
4199 |
||
4200 |
char buf[fixed_buffer_size]; |
|
4201 |
char* bytes = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4202 |
unsigned int length = signature->utf8_length(); |
|
4203 |
char* p = skip_over_field_signature(bytes, false, length, CHECK); |
|
4204 |
||
4205 |
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
|
4206 |
throwIllegalSignature("Field", name, signature, CHECK); |
1 | 4207 |
} |
4208 |
} |
|
4209 |
||
4210 |
// Checks if signature is a legal method signature. |
|
4211 |
// Returns number of parameters |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4212 |
int ClassFileParser::verify_legal_method_signature(Symbol* name, Symbol* signature, TRAPS) { |
1 | 4213 |
if (!_need_verify) { |
4214 |
// make sure caller's args_size will be less than 0 even for non-static |
|
4215 |
// method so it will be recomputed in compute_size_of_parameters(). |
|
4216 |
return -2; |
|
4217 |
} |
|
4218 |
||
4219 |
unsigned int args_size = 0; |
|
4220 |
char buf[fixed_buffer_size]; |
|
4221 |
char* p = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size); |
|
4222 |
unsigned int length = signature->utf8_length(); |
|
4223 |
char* nextp; |
|
4224 |
||
4225 |
// The first character must be a '(' |
|
4226 |
if ((length > 0) && (*p++ == JVM_SIGNATURE_FUNC)) { |
|
4227 |
length--; |
|
4228 |
// Skip over legal field signatures |
|
4229 |
nextp = skip_over_field_signature(p, false, length, CHECK_0); |
|
4230 |
while ((length > 0) && (nextp != NULL)) { |
|
4231 |
args_size++; |
|
4232 |
if (p[0] == 'J' || p[0] == 'D') { |
|
4233 |
args_size++; |
|
4234 |
} |
|
4235 |
length -= nextp - p; |
|
4236 |
p = nextp; |
|
4237 |
nextp = skip_over_field_signature(p, false, length, CHECK_0); |
|
4238 |
} |
|
4239 |
// The first non-signature thing better be a ')' |
|
4240 |
if ((length > 0) && (*p++ == JVM_SIGNATURE_ENDFUNC)) { |
|
4241 |
length--; |
|
4242 |
if (name->utf8_length() > 0 && name->byte_at(0) == '<') { |
|
4243 |
// All internal methods must return void |
|
4244 |
if ((length == 1) && (p[0] == JVM_SIGNATURE_VOID)) { |
|
4245 |
return args_size; |
|
4246 |
} |
|
4247 |
} else { |
|
4248 |
// Now we better just have a return value |
|
4249 |
nextp = skip_over_field_signature(p, true, length, CHECK_0); |
|
4250 |
if (nextp && ((int)length == (nextp - p))) { |
|
4251 |
return args_size; |
|
4252 |
} |
|
4253 |
} |
|
4254 |
} |
|
4255 |
} |
|
4256 |
// Report error |
|
5709
3b5307e27c1d
6930553: classfile format checker allows invalid method descriptor in CONSTANT_NameAndType_info in some cases
kamg
parents:
5426
diff
changeset
|
4257 |
throwIllegalSignature("Method", name, signature, CHECK_0); |
1 | 4258 |
return 0; |
4259 |
} |
|
4260 |
||
4261 |
||
6978
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4262 |
// Unqualified names may not contain the characters '.', ';', '[', or '/'. |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4263 |
// Method names also may not contain the characters '<' or '>', unless <init> |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4264 |
// or <clinit>. Note that method names may not be <init> or <clinit> in this |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4265 |
// method. Because these names have been checked as special cases before |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4266 |
// calling this method in verify_legal_method_name. |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4267 |
bool ClassFileParser::verify_unqualified_name( |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4268 |
char* name, unsigned int length, int type) { |
1 | 4269 |
jchar ch; |
4270 |
||
4271 |
for (char* p = name; p != name + length; ) { |
|
4272 |
ch = *p; |
|
4273 |
if (ch < 128) { |
|
4274 |
p++; |
|
6978
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4275 |
if (ch == '.' || ch == ';' || ch == '[' ) { |
fd89b5882576
6891959: HotSpot should not throw ClassFormatError if a class has a field with '>' and/or '<' in its name
kamg
parents:
6773
diff
changeset
|
4276 |
return false; // do not permit '.', ';', or '[' |
1 | 4277 |
} |
4278 |
if (type != LegalClass && ch == '/') { |
|
4279 |
return false; // do not permit '/' unless it's class name |
|
4280 |
} |
|
4281 |
if (type == LegalMethod && (ch == '<' || ch == '>')) { |
|
4282 |
return false; // do not permit '<' or '>' in method names |
|
4283 |
} |
|
4284 |
} else { |
|
4285 |
char* tmp_p = UTF8::next(p, &ch); |
|
4286 |
p = tmp_p; |
|
4287 |
} |
|
4288 |
} |
|
4289 |
return true; |
|
4290 |
} |
|
4291 |
||
4292 |
||
4293 |
// Take pointer to a string. Skip over the longest part of the string that could |
|
4294 |
// be taken as a fieldname. Allow '/' if slash_ok is true. |
|
4295 |
// Return a pointer to just past the fieldname. |
|
4296 |
// Return NULL if no fieldname at all was found, or in the case of slash_ok |
|
4297 |
// being true, we saw consecutive slashes (meaning we were looking for a |
|
4298 |
// qualified path but found something that was badly-formed). |
|
4299 |
char* ClassFileParser::skip_over_field_name(char* name, bool slash_ok, unsigned int length) { |
|
4300 |
char* p; |
|
4301 |
jchar ch; |
|
4302 |
jboolean last_is_slash = false; |
|
4303 |
jboolean not_first_ch = false; |
|
4304 |
||
4305 |
for (p = name; p != name + length; not_first_ch = true) { |
|
4306 |
char* old_p = p; |
|
4307 |
ch = *p; |
|
4308 |
if (ch < 128) { |
|
4309 |
p++; |
|
4310 |
// quick check for ascii |
|
4311 |
if ((ch >= 'a' && ch <= 'z') || |
|
4312 |
(ch >= 'A' && ch <= 'Z') || |
|
4313 |
(ch == '_' || ch == '$') || |
|
4314 |
(not_first_ch && ch >= '0' && ch <= '9')) { |
|
4315 |
last_is_slash = false; |
|
4316 |
continue; |
|
4317 |
} |
|
4318 |
if (slash_ok && ch == '/') { |
|
4319 |
if (last_is_slash) { |
|
4320 |
return NULL; // Don't permit consecutive slashes |
|
4321 |
} |
|
4322 |
last_is_slash = true; |
|
4323 |
continue; |
|
4324 |
} |
|
4325 |
} else { |
|
4326 |
jint unicode_ch; |
|
4327 |
char* tmp_p = UTF8::next_character(p, &unicode_ch); |
|
4328 |
p = tmp_p; |
|
4329 |
last_is_slash = false; |
|
4330 |
// Check if ch is Java identifier start or is Java identifier part |
|
4331 |
// 4672820: call java.lang.Character methods directly without generating separate tables. |
|
4332 |
EXCEPTION_MARK; |
|
4571 | 4333 |
instanceKlassHandle klass (THREAD, SystemDictionary::Character_klass()); |
1 | 4334 |
|
4335 |
// return value |
|
4336 |
JavaValue result(T_BOOLEAN); |
|
4337 |
// Set up the arguments to isJavaIdentifierStart and isJavaIdentifierPart |
|
4338 |
JavaCallArguments args; |
|
4339 |
args.push_int(unicode_ch); |
|
4340 |
||
4341 |
// public static boolean isJavaIdentifierStart(char ch); |
|
4342 |
JavaCalls::call_static(&result, |
|
4343 |
klass, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4344 |
vmSymbols::isJavaIdentifierStart_name(), |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4345 |
vmSymbols::int_bool_signature(), |
1 | 4346 |
&args, |
4347 |
THREAD); |
|
4348 |
||
4349 |
if (HAS_PENDING_EXCEPTION) { |
|
4350 |
CLEAR_PENDING_EXCEPTION; |
|
4351 |
return 0; |
|
4352 |
} |
|
4353 |
if (result.get_jboolean()) { |
|
4354 |
continue; |
|
4355 |
} |
|
4356 |
||
4357 |
if (not_first_ch) { |
|
4358 |
// public static boolean isJavaIdentifierPart(char ch); |
|
4359 |
JavaCalls::call_static(&result, |
|
4360 |
klass, |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4361 |
vmSymbols::isJavaIdentifierPart_name(), |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7709
diff
changeset
|
4362 |
vmSymbols::int_bool_signature(), |
1 | 4363 |
&args, |
4364 |
THREAD); |
|
4365 |
||
4366 |
if (HAS_PENDING_EXCEPTION) { |
|
4367 |
CLEAR_PENDING_EXCEPTION; |
|
4368 |
return 0; |
|
4369 |
} |
|
4370 |
||
4371 |
if (result.get_jboolean()) { |
|
4372 |
continue; |
|
4373 |
} |
|
4374 |
} |
|
4375 |
} |
|
4376 |
return (not_first_ch) ? old_p : NULL; |
|
4377 |
} |
|
4378 |
return (not_first_ch) ? p : NULL; |
|
4379 |
} |
|
4380 |
||
4381 |
||
4382 |
// Take pointer to a string. Skip over the longest part of the string that could |
|
4383 |
// be taken as a field signature. Allow "void" if void_ok. |
|
4384 |
// Return a pointer to just past the signature. |
|
4385 |
// Return NULL if no legal signature is found. |
|
4386 |
char* ClassFileParser::skip_over_field_signature(char* signature, |
|
4387 |
bool void_ok, |
|
4388 |
unsigned int length, |
|
4389 |
TRAPS) { |
|
4390 |
unsigned int array_dim = 0; |
|
4391 |
while (length > 0) { |
|
4392 |
switch (signature[0]) { |
|
4393 |
case JVM_SIGNATURE_VOID: if (!void_ok) { return NULL; } |
|
4394 |
case JVM_SIGNATURE_BOOLEAN: |
|
4395 |
case JVM_SIGNATURE_BYTE: |
|
4396 |
case JVM_SIGNATURE_CHAR: |
|
4397 |
case JVM_SIGNATURE_SHORT: |
|
4398 |
case JVM_SIGNATURE_INT: |
|
4399 |
case JVM_SIGNATURE_FLOAT: |
|
4400 |
case JVM_SIGNATURE_LONG: |
|
4401 |
case JVM_SIGNATURE_DOUBLE: |
|
4402 |
return signature + 1; |
|
4403 |
case JVM_SIGNATURE_CLASS: { |
|
4404 |
if (_major_version < JAVA_1_5_VERSION) { |
|
4405 |
// Skip over the class name if one is there |
|
4406 |
char* p = skip_over_field_name(signature + 1, true, --length); |
|
4407 |
||
4408 |
// The next character better be a semicolon |
|
4409 |
if (p && (p - signature) > 1 && p[0] == ';') { |
|
4410 |
return p + 1; |
|
4411 |
} |
|
4412 |
} else { |
|
4413 |
// 4900761: For class version > 48, any unicode is allowed in class name. |
|
4414 |
length--; |
|
4415 |
signature++; |
|
4416 |
while (length > 0 && signature[0] != ';') { |
|
4417 |
if (signature[0] == '.') { |
|
4418 |
classfile_parse_error("Class name contains illegal character '.' in descriptor in class file %s", CHECK_0); |
|
4419 |
} |
|
4420 |
length--; |
|
4421 |
signature++; |
|
4422 |
} |
|
4423 |
if (signature[0] == ';') { return signature + 1; } |
|
4424 |
} |
|
4425 |
||
4426 |
return NULL; |
|
4427 |
} |
|
4428 |
case JVM_SIGNATURE_ARRAY: |
|
4429 |
array_dim++; |
|
4430 |
if (array_dim > 255) { |
|
4431 |
// 4277370: array descriptor is valid only if it represents 255 or fewer dimensions. |
|
4432 |
classfile_parse_error("Array type descriptor has more than 255 dimensions in class file %s", CHECK_0); |
|
4433 |
} |
|
4434 |
// The rest of what's there better be a legal signature |
|
4435 |
signature++; |
|
4436 |
length--; |
|
4437 |
void_ok = false; |
|
4438 |
break; |
|
4439 |
||
4440 |
default: |
|
4441 |
return NULL; |
|
4442 |
} |
|
4443 |
} |
|
4444 |
return NULL; |
|
4445 |
} |