hotspot/src/share/vm/oops/constantPool.cpp
author coleenp
Tue, 28 Oct 2014 17:02:08 -0400
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child 27680 8ecc0871c18e
permissions -rw-r--r--
8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise 8044209: nsk/split_verifier/security/coglio06 fails with exit code 97 - missing 'prohibited package name' Summary: Fix resolution error saving. Reviewed-by: lfoltan, sspitsyn, hseigel, ctornqvi
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/*
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 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/classLoaderData.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/metadataOnStackMark.hpp"
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#include "classfile/stringTable.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "interpreter/linkResolver.hpp"
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#include "memory/heapInspection.hpp"
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#include "memory/metadataFactory.hpp"
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#include "memory/oopFactory.hpp"
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#include "oops/constantPool.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/objArrayKlass.hpp"
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#include "runtime/fieldType.hpp"
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#include "runtime/init.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/signature.hpp"
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#include "runtime/vframe.hpp"
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PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
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ConstantPool* ConstantPool::allocate(ClassLoaderData* loader_data, int length, TRAPS) {
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  // Tags are RW but comment below applies to tags also.
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  Array<u1>* tags = MetadataFactory::new_writeable_array<u1>(loader_data, length, 0, CHECK_NULL);
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  int size = ConstantPool::size(length);
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  // CDS considerations:
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  // Allocate read-write but may be able to move to read-only at dumping time
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  // if all the klasses are resolved.  The only other field that is writable is
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  // the resolved_references array, which is recreated at startup time.
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  // But that could be moved to InstanceKlass (although a pain to access from
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  // assembly code).  Maybe it could be moved to the cpCache which is RW.
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  return new (loader_data, size, false, MetaspaceObj::ConstantPoolType, THREAD) ConstantPool(tags);
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}
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ConstantPool::ConstantPool(Array<u1>* tags) {
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  set_length(tags->length());
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  set_tags(NULL);
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  set_cache(NULL);
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  set_reference_map(NULL);
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  set_resolved_references(NULL);
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  set_operands(NULL);
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  set_pool_holder(NULL);
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  set_flags(0);
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  // only set to non-zero if constant pool is merged by RedefineClasses
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  set_version(0);
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  // initialize tag array
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  int length = tags->length();
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  for (int index = 0; index < length; index++) {
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    tags->at_put(index, JVM_CONSTANT_Invalid);
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  }
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  set_tags(tags);
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}
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void ConstantPool::deallocate_contents(ClassLoaderData* loader_data) {
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  MetadataFactory::free_metadata(loader_data, cache());
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  set_cache(NULL);
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  MetadataFactory::free_array<u2>(loader_data, reference_map());
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  set_reference_map(NULL);
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  MetadataFactory::free_array<jushort>(loader_data, operands());
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  set_operands(NULL);
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  release_C_heap_structures();
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  // free tag array
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  MetadataFactory::free_array<u1>(loader_data, tags());
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  set_tags(NULL);
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}
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void ConstantPool::release_C_heap_structures() {
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  // walk constant pool and decrement symbol reference counts
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  unreference_symbols();
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}
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objArrayOop ConstantPool::resolved_references() const {
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  return (objArrayOop)JNIHandles::resolve(_resolved_references);
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}
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// Create resolved_references array and mapping array for original cp indexes
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// The ldc bytecode was rewritten to have the resolved reference array index so need a way
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// to map it back for resolving and some unlikely miscellaneous uses.
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// The objects created by invokedynamic are appended to this list.
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void ConstantPool::initialize_resolved_references(ClassLoaderData* loader_data,
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                                                  intStack reference_map,
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                                                  int constant_pool_map_length,
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                                                  TRAPS) {
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  // Initialized the resolved object cache.
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  int map_length = reference_map.length();
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  if (map_length > 0) {
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    // Only need mapping back to constant pool entries.  The map isn't used for
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    // invokedynamic resolved_reference entries.  For invokedynamic entries,
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    // the constant pool cache index has the mapping back to both the constant
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    // pool and to the resolved reference index.
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    if (constant_pool_map_length > 0) {
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      Array<u2>* om = MetadataFactory::new_array<u2>(loader_data, constant_pool_map_length, CHECK);
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      for (int i = 0; i < constant_pool_map_length; i++) {
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        int x = reference_map.at(i);
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        assert(x == (int)(jushort) x, "klass index is too big");
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        om->at_put(i, (jushort)x);
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      }
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      set_reference_map(om);
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    }
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    // Create Java array for holding resolved strings, methodHandles,
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    // methodTypes, invokedynamic and invokehandle appendix objects, etc.
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    objArrayOop stom = oopFactory::new_objArray(SystemDictionary::Object_klass(), map_length, CHECK);
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    Handle refs_handle (THREAD, (oop)stom);  // must handleize.
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    set_resolved_references(loader_data->add_handle(refs_handle));
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  }
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}
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// CDS support. Create a new resolved_references array.
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void ConstantPool::restore_unshareable_info(TRAPS) {
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  // Only create the new resolved references array if it hasn't been attempted before
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  if (resolved_references() != NULL) return;
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  // restore the C++ vtable from the shared archive
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  restore_vtable();
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  if (SystemDictionary::Object_klass_loaded()) {
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    // Recreate the object array and add to ClassLoaderData.
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    int map_length = resolved_reference_length();
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    if (map_length > 0) {
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      objArrayOop stom = oopFactory::new_objArray(SystemDictionary::Object_klass(), map_length, CHECK);
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      Handle refs_handle (THREAD, (oop)stom);  // must handleize.
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      ClassLoaderData* loader_data = pool_holder()->class_loader_data();
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      set_resolved_references(loader_data->add_handle(refs_handle));
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    }
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  }
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}
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void ConstantPool::remove_unshareable_info() {
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  // Resolved references are not in the shared archive.
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  // Save the length for restoration.  It is not necessarily the same length
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  // as reference_map.length() if invokedynamic is saved.
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  set_resolved_reference_length(
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    resolved_references() != NULL ? resolved_references()->length() : 0);
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  set_resolved_references(NULL);
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}
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int ConstantPool::cp_to_object_index(int cp_index) {
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  // this is harder don't do this so much.
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  int i = reference_map()->find(cp_index);
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  // We might not find the index for jsr292 call.
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  return (i < 0) ? _no_index_sentinel : i;
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}
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void ConstantPool::trace_class_resolution(constantPoolHandle this_cp, KlassHandle k) {
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  ResourceMark rm;
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  int line_number = -1;
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  const char * source_file = NULL;
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  if (JavaThread::current()->has_last_Java_frame()) {
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    // try to identify the method which called this function.
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    vframeStream vfst(JavaThread::current());
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    if (!vfst.at_end()) {
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      line_number = vfst.method()->line_number_from_bci(vfst.bci());
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      Symbol* s = vfst.method()->method_holder()->source_file_name();
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      if (s != NULL) {
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        source_file = s->as_C_string();
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      }
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    }
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  }
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  if (k() != this_cp->pool_holder()) {
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    // only print something if the classes are different
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    if (source_file != NULL) {
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      tty->print("RESOLVE %s %s %s:%d\n",
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                 this_cp->pool_holder()->external_name(),
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                 InstanceKlass::cast(k())->external_name(), source_file, line_number);
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    } else {
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      tty->print("RESOLVE %s %s\n",
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                 this_cp->pool_holder()->external_name(),
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                 InstanceKlass::cast(k())->external_name());
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    }
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  }
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}
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Klass* ConstantPool::klass_at_impl(constantPoolHandle this_cp, int which,
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                                   bool save_resolution_error, TRAPS) {
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  assert(THREAD->is_Java_thread(), "must be a Java thread");
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  // A resolved constantPool entry will contain a Klass*, otherwise a Symbol*.
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  // It is not safe to rely on the tag bit's here, since we don't have a lock, and
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  // the entry and tag is not updated atomicly.
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  CPSlot entry = this_cp->slot_at(which);
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  if (entry.is_resolved()) {
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    assert(entry.get_klass()->is_klass(), "must be");
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    // Already resolved - return entry.
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    return entry.get_klass();
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  }
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  // This tag doesn't change back to unresolved class unless at a safepoint.
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  if (this_cp->tag_at(which).is_unresolved_klass_in_error()) {
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    // The original attempt to resolve this constant pool entry failed so find the
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    // class of the original error and throw another error of the same class
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    // (JVMS 5.4.3).
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    // If there is a detail message, pass that detail message to the error.
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    // The JVMS does not strictly require us to duplicate the same detail message,
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    // or any internal exception fields such as cause or stacktrace.  But since the
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    // detail message is often a class name or other literal string, we will repeat it
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    // if we can find it in the symbol table.
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    throw_resolution_error(this_cp, which, CHECK_0);
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    ShouldNotReachHere();
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  }
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  Handle mirror_handle;
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  Symbol* name = entry.get_symbol();
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  Handle loader (THREAD, this_cp->pool_holder()->class_loader());
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  Handle protection_domain (THREAD, this_cp->pool_holder()->protection_domain());
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  Klass* kk = SystemDictionary::resolve_or_fail(name, loader, protection_domain, true, THREAD);
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  KlassHandle k (THREAD, kk);
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  if (!HAS_PENDING_EXCEPTION) {
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    // preserve the resolved klass from unloading
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    mirror_handle = Handle(THREAD, kk->java_mirror());
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    // Do access check for klasses
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    verify_constant_pool_resolve(this_cp, k, THREAD);
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  }
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  // Failed to resolve class. We must record the errors so that subsequent attempts
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  // to resolve this constant pool entry fail with the same error (JVMS 5.4.3).
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  if (HAS_PENDING_EXCEPTION) {
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    if (save_resolution_error) {
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      save_and_throw_exception(this_cp, which, constantTag(JVM_CONSTANT_UnresolvedClass), CHECK_NULL);
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      // If CHECK_NULL above doesn't return the exception, that means that
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      // some other thread has beaten us and has resolved the class.
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      // To preserve old behavior, we return the resolved class.
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      entry = this_cp->resolved_klass_at(which);
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      assert(entry.is_resolved(), "must be resolved if exception was cleared");
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      assert(entry.get_klass()->is_klass(), "must be resolved to a klass");
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      return entry.get_klass();
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    } else {
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      return NULL;  // return the pending exception
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    }
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  }
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  // Make this class loader depend upon the class loader owning the class reference
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  ClassLoaderData* this_key = this_cp->pool_holder()->class_loader_data();
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  this_key->record_dependency(k(), CHECK_NULL); // Can throw OOM
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  if (TraceClassResolution && !k->oop_is_array()) {
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    // skip resolving the constant pool so that this code gets
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    // called the next time some bytecodes refer to this class.
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   274
    trace_class_resolution(this_cp, k);
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    return k();
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  } else {
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    this_cp->klass_at_put(which, k());
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  }
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  entry = this_cp->resolved_klass_at(which);
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   281
  assert(entry.is_resolved() && entry.get_klass()->is_klass(), "must be resolved at this point");
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  return entry.get_klass();
1
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}
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// Does not update ConstantPool* - to avoid any exception throwing. Used
1
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   287
// by compiler and exception handling.  Also used to avoid classloads for
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   288
// instanceof operations. Returns NULL if the class has not been loaded or
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   289
// if the verification of constant pool failed
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   290
Klass* ConstantPool::klass_at_if_loaded(constantPoolHandle this_cp, int which) {
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   291
  CPSlot entry = this_cp->slot_at(which);
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   292
  if (entry.is_resolved()) {
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   293
    assert(entry.get_klass()->is_klass(), "must be");
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   294
    return entry.get_klass();
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   295
  } else {
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   296
    assert(entry.is_unresolved(), "must be either symbol or klass");
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   297
    Thread *thread = Thread::current();
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   298
    Symbol* name = entry.get_symbol();
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   299
    oop loader = this_cp->pool_holder()->class_loader();
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   300
    oop protection_domain = this_cp->pool_holder()->protection_domain();
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   301
    Handle h_prot (thread, protection_domain);
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   302
    Handle h_loader (thread, loader);
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   303
    Klass* k = SystemDictionary::find(name, h_loader, h_prot, thread);
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   304
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   305
    if (k != NULL) {
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   306
      // Make sure that resolving is legal
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   307
      EXCEPTION_MARK;
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   308
      KlassHandle klass(THREAD, k);
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   309
      // return NULL if verification fails
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   310
      verify_constant_pool_resolve(this_cp, klass, THREAD);
1
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   311
      if (HAS_PENDING_EXCEPTION) {
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   312
        CLEAR_PENDING_EXCEPTION;
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   313
        return NULL;
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   314
      }
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   315
      return klass();
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   316
    } else {
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   317
      return k;
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diff changeset
   318
    }
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   319
  }
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   320
}
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   321
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   322
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diff changeset
   323
Klass* ConstantPool::klass_ref_at_if_loaded(constantPoolHandle this_cp, int which) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   324
  return klass_at_if_loaded(this_cp, this_cp->klass_ref_index_at(which));
1
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   325
}
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   326
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   327
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   328
Method* ConstantPool::method_at_if_loaded(constantPoolHandle cpool,
13391
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   329
                                                   int which) {
11626
7423003cc783 7140882: Don't return booleans from methods returning pointers
brutisso
parents: 10565
diff changeset
   330
  if (cpool->cache() == NULL)  return NULL;  // nothing to load yet
13728
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coleenp
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diff changeset
   331
  int cache_index = decode_cpcache_index(which, true);
10008
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff changeset
   332
  if (!(cache_index >= 0 && cache_index < cpool->cache()->length())) {
13728
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coleenp
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diff changeset
   333
    // FIXME: should be an assert
10008
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diff changeset
   334
    if (PrintMiscellaneous && (Verbose||WizardMode)) {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
   335
      tty->print_cr("bad operand %d in:", which); cpool->print();
10008
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   336
    }
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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   337
    return NULL;
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diff changeset
   338
  }
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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   339
  ConstantPoolCacheEntry* e = cpool->cache()->entry_at(cache_index);
13391
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   340
  return e->method_if_resolved(cpool);
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diff changeset
   341
}
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
   342
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
   343
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   344
bool ConstantPool::has_appendix_at_if_loaded(constantPoolHandle cpool, int which) {
13391
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   345
  if (cpool->cache() == NULL)  return false;  // nothing to load yet
13728
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coleenp
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diff changeset
   346
  int cache_index = decode_cpcache_index(which, true);
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   347
  ConstantPoolCacheEntry* e = cpool->cache()->entry_at(cache_index);
13391
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twisti
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diff changeset
   348
  return e->has_appendix();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
   349
}
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   350
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   351
oop ConstantPool::appendix_at_if_loaded(constantPoolHandle cpool, int which) {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
   352
  if (cpool->cache() == NULL)  return NULL;  // nothing to load yet
13728
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coleenp
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diff changeset
   353
  int cache_index = decode_cpcache_index(which, true);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
   354
  ConstantPoolCacheEntry* e = cpool->cache()->entry_at(cache_index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
   355
  return e->appendix_if_resolved(cpool);
10008
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diff changeset
   356
}
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents: 9116
diff changeset
   357
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents: 9116
diff changeset
   358
13929
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   359
bool ConstantPool::has_method_type_at_if_loaded(constantPoolHandle cpool, int which) {
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   360
  if (cpool->cache() == NULL)  return false;  // nothing to load yet
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   361
  int cache_index = decode_cpcache_index(which, true);
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   362
  ConstantPoolCacheEntry* e = cpool->cache()->entry_at(cache_index);
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   363
  return e->has_method_type();
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   364
}
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   365
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   366
oop ConstantPool::method_type_at_if_loaded(constantPoolHandle cpool, int which) {
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   367
  if (cpool->cache() == NULL)  return NULL;  // nothing to load yet
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   368
  int cache_index = decode_cpcache_index(which, true);
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   369
  ConstantPoolCacheEntry* e = cpool->cache()->entry_at(cache_index);
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   370
  return e->method_type_if_resolved(cpool);
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   371
}
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   372
8da0dc50a6e4 7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents: 13736
diff changeset
   373
13728
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coleenp
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diff changeset
   374
Symbol* ConstantPool::impl_name_ref_at(int which, bool uncached) {
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   375
  int name_index = name_ref_index_at(impl_name_and_type_ref_index_at(which, uncached));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  return symbol_at(name_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
13728
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coleenp
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diff changeset
   380
Symbol* ConstantPool::impl_signature_ref_at(int which, bool uncached) {
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   381
  int signature_index = signature_ref_index_at(impl_name_and_type_ref_index_at(which, uncached));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
  return symbol_at(signature_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   386
int ConstantPool::impl_name_and_type_ref_index_at(int which, bool uncached) {
4429
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   387
  int i = which;
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   388
  if (!uncached && cache() != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   389
    if (ConstantPool::is_invokedynamic_index(which)) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   390
      // Invokedynamic index is index into resolved_references
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   391
      int pool_index = invokedynamic_cp_cache_entry_at(which)->constant_pool_index();
9116
9bc44be338d6 6981791: remove experimental code for JSR 292
jrose
parents: 8725
diff changeset
   392
      pool_index = invoke_dynamic_name_and_type_ref_index_at(pool_index);
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   393
      assert(tag_at(pool_index).is_name_and_type(), "");
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   394
      return pool_index;
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   395
    }
4429
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   396
    // change byte-ordering and go via cache
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   397
    i = remap_instruction_operand_from_cache(which);
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   398
  } else {
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   399
    if (tag_at(which).is_invoke_dynamic()) {
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   400
      int pool_index = invoke_dynamic_name_and_type_ref_index_at(which);
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   401
      assert(tag_at(pool_index).is_name_and_type(), "");
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   402
      return pool_index;
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   403
    }
4429
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   404
  }
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   405
  assert(tag_at(i).is_field_or_method(), "Corrupted constant pool");
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   406
  assert(!tag_at(i).is_invoke_dynamic(), "Must be handled above");
4429
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   407
  jint ref_index = *int_at_addr(i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  return extract_high_short_from_int(ref_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   412
int ConstantPool::impl_klass_ref_index_at(int which, bool uncached) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   413
  guarantee(!ConstantPool::is_invokedynamic_index(which),
4429
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   414
            "an invokedynamic instruction does not have a klass");
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   415
  int i = which;
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   416
  if (!uncached && cache() != NULL) {
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   417
    // change byte-ordering and go via cache
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   418
    i = remap_instruction_operand_from_cache(which);
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   419
  }
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   420
  assert(tag_at(i).is_field_or_method(), "Corrupted constant pool");
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   421
  jint ref_index = *int_at_addr(i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
  return extract_low_short_from_int(ref_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   426
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   427
int ConstantPool::remap_instruction_operand_from_cache(int operand) {
5688
9052dc91ea67 6939207: refactor constant pool index processing
jrose
parents: 4571
diff changeset
   428
  int cpc_index = operand;
9052dc91ea67 6939207: refactor constant pool index processing
jrose
parents: 4571
diff changeset
   429
  DEBUG_ONLY(cpc_index -= CPCACHE_INDEX_TAG);
9052dc91ea67 6939207: refactor constant pool index processing
jrose
parents: 4571
diff changeset
   430
  assert((int)(u2)cpc_index == cpc_index, "clean u2");
4429
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   431
  int member_index = cache()->entry_at(cpc_index)->constant_pool_index();
d7eb4e2099aa 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 2860
diff changeset
   432
  return member_index;
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   433
}
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   434
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   435
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   436
void ConstantPool::verify_constant_pool_resolve(constantPoolHandle this_cp, KlassHandle k, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
 if (k->oop_is_instance() || k->oop_is_objArray()) {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   438
    instanceKlassHandle holder (THREAD, this_cp->pool_holder());
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   439
    Klass* elem = k->oop_is_instance() ? k() : ObjArrayKlass::cast(k())->bottom_klass();
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   440
    KlassHandle element (THREAD, elem);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
    // The element type could be a typeArray - we only need the access check if it is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
    // an reference to another class
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
    if (element->oop_is_instance()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
      LinkResolver::check_klass_accessability(holder, element, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   451
int ConstantPool::name_ref_index_at(int which_nt) {
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   452
  jint ref_index = name_and_type_at(which_nt);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
  return extract_low_short_from_int(ref_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   457
int ConstantPool::signature_ref_index_at(int which_nt) {
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2105
diff changeset
   458
  jint ref_index = name_and_type_at(which_nt);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
  return extract_high_short_from_int(ref_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   463
Klass* ConstantPool::klass_ref_at(int which, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
  return klass_at(klass_ref_index_at(which), CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   468
Symbol* ConstantPool::klass_name_at(int which) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  assert(tag_at(which).is_unresolved_klass() || tag_at(which).is_klass(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
         "Corrupted constant pool");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   471
  // A resolved constantPool entry will contain a Klass*, otherwise a Symbol*.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  // It is not safe to rely on the tag bit's here, since we don't have a lock, and the entry and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  // tag is not updated atomicly.
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   474
  CPSlot entry = slot_at(which);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   475
  if (entry.is_resolved()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
    // Already resolved - return entry's name.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   477
    assert(entry.get_klass()->is_klass(), "must be");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   478
    return entry.get_klass()->name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   480
    assert(entry.is_unresolved(), "must be either symbol or klass");
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   481
    return entry.get_symbol();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   485
Symbol* ConstantPool::klass_ref_at_noresolve(int which) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  jint ref_index = klass_ref_index_at(which);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  return klass_at_noresolve(ref_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   490
Symbol* ConstantPool::uncached_klass_ref_at_noresolve(int which) {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   491
  jint ref_index = uncached_klass_ref_index_at(which);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   492
  return klass_at_noresolve(ref_index);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   493
}
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   494
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   495
char* ConstantPool::string_at_noresolve(int which) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   496
  Symbol* s = unresolved_string_at(which);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   497
  if (s == NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   498
    return (char*)"<pseudo-string>";
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   500
    return unresolved_string_at(which)->as_C_string();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   504
BasicType ConstantPool::basic_type_for_signature_at(int which) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  return FieldType::basic_type(symbol_at(which));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   509
void ConstantPool::resolve_string_constants_impl(constantPoolHandle this_cp, TRAPS) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   510
  for (int index = 1; index < this_cp->length(); index++) { // Index 0 is unused
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   511
    if (this_cp->tag_at(index).is_string()) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   512
      this_cp->string_at(index, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   517
// Resolve all the classes in the constant pool.  If they are all resolved,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   518
// the constant pool is read-only.  Enhancement: allocate cp entries to
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   519
// another metaspace, and copy to read-only or read-write space if this
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   520
// bit is set.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   521
bool ConstantPool::resolve_class_constants(TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   522
  constantPoolHandle cp(THREAD, this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   523
  for (int index = 1; index < length(); index++) { // Index 0 is unused
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   524
    if (tag_at(index).is_unresolved_klass() &&
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   525
        klass_at_if_loaded(cp, index) == NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   526
      return false;
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   527
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   528
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   529
  // set_preresolution(); or some bit for future use
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   530
  return true;
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   531
}
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   532
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   533
Symbol* ConstantPool::exception_message(constantPoolHandle this_cp, int which, constantTag tag, oop pending_exception) {
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   534
  // Dig out the detailed message to reuse if possible
25624
b3bd733f04e9 8048933: -XX:+TraceExceptions output should include the message
coleenp
parents: 25325
diff changeset
   535
  Symbol* message = java_lang_Throwable::detail_message(pending_exception);
b3bd733f04e9 8048933: -XX:+TraceExceptions output should include the message
coleenp
parents: 25325
diff changeset
   536
  if (message != NULL) {
b3bd733f04e9 8048933: -XX:+TraceExceptions output should include the message
coleenp
parents: 25325
diff changeset
   537
    return message;
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   538
  }
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   539
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   540
  // Return specific message for the tag
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   541
  switch (tag.value()) {
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   542
  case JVM_CONSTANT_UnresolvedClass:
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   543
    // return the class name in the error message
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   544
    message = this_cp->klass_name_at(which);
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   545
    break;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   546
  case JVM_CONSTANT_MethodHandle:
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   547
    // return the method handle name in the error message
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   548
    message = this_cp->method_handle_name_ref_at(which);
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   549
    break;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   550
  case JVM_CONSTANT_MethodType:
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   551
    // return the method type signature in the error message
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   552
    message = this_cp->method_type_signature_at(which);
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   553
    break;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   554
  default:
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   555
    ShouldNotReachHere();
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   556
  }
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   557
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   558
  return message;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   559
}
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   560
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   561
void ConstantPool::throw_resolution_error(constantPoolHandle this_cp, int which, TRAPS) {
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   562
  Symbol* message = NULL;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   563
  Symbol* error = SystemDictionary::find_resolution_error(this_cp, which, &message);
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   564
  assert(error != NULL && message != NULL, "checking");
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   565
  CLEAR_PENDING_EXCEPTION;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   566
  ResourceMark rm;
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   567
  THROW_MSG(error, message->as_C_string());
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   568
}
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   569
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   570
// If resolution for Class, MethodHandle or MethodType fails, save the exception
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   571
// in the resolution error table, so that the same exception is thrown again.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   572
void ConstantPool::save_and_throw_exception(constantPoolHandle this_cp, int which,
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   573
                                            constantTag tag, TRAPS) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   574
  Symbol* error = PENDING_EXCEPTION->klass()->name();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   575
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   576
  int error_tag = tag.error_value();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   577
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   578
  if (!PENDING_EXCEPTION->
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   579
    is_a(SystemDictionary::LinkageError_klass())) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   580
    // Just throw the exception and don't prevent these classes from
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   581
    // being loaded due to virtual machine errors like StackOverflow
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   582
    // and OutOfMemoryError, etc, or if the thread was hit by stop()
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   583
    // Needs clarification to section 5.4.3 of the VM spec (see 6308271)
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   584
  } else if (this_cp->tag_at(which).value() != error_tag) {
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   585
    Symbol* message = exception_message(this_cp, which, tag, PENDING_EXCEPTION);
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   586
    SystemDictionary::add_resolution_error(this_cp, which, error, message);
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   587
    // CAS in the tag.  If a thread beat us to registering this error that's fine.
27408
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   588
    // If another thread resolved the reference, this is a race condition. This
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   589
    // thread may have had a security manager or something temporary.
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   590
    // This doesn't deterministically get an error.   So why do we save this?
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   591
    // We save this because jvmti can add classes to the bootclass path after
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   592
    // this error, so it needs to get the same error if the error is first.
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   593
    jbyte old_tag = Atomic::cmpxchg((jbyte)error_tag,
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   594
                            (jbyte*)this_cp->tag_addr_at(which), (jbyte)tag.value());
27408
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   595
    if (old_tag != error_tag && old_tag != tag.value()) {
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   596
      // MethodHandles and MethodType doesn't change to resolved version.
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   597
      assert(this_cp->tag_at(which).is_klass(), "Wrong tag value");
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   598
      // Forget the exception and use the resolved class.
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   599
      CLEAR_PENDING_EXCEPTION;
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   600
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   601
  } else {
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   602
    // some other thread put this in error state
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   603
    throw_resolution_error(this_cp, which, CHECK);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   604
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   605
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   606
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   607
// Called to resolve constants in the constant pool and return an oop.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   608
// Some constant pool entries cache their resolved oop. This is also
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   609
// called to create oops from constants to use in arguments for invokedynamic
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   610
oop ConstantPool::resolve_constant_at_impl(constantPoolHandle this_cp, int index, int cache_index, TRAPS) {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   611
  oop result_oop = NULL;
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   612
  Handle throw_exception;
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   613
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   614
  if (cache_index == _possible_index_sentinel) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   615
    // It is possible that this constant is one which is cached in the objects.
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   616
    // We'll do a linear search.  This should be OK because this usage is rare.
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   617
    assert(index > 0, "valid index");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   618
    cache_index = this_cp->cp_to_object_index(index);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   619
  }
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   620
  assert(cache_index == _no_index_sentinel || cache_index >= 0, "");
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   621
  assert(index == _no_index_sentinel || index >= 0, "");
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   622
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   623
  if (cache_index >= 0) {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   624
    result_oop = this_cp->resolved_references()->obj_at(cache_index);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   625
    if (result_oop != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   626
      return result_oop;
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   627
      // That was easy...
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   628
    }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   629
    index = this_cp->object_to_cp_index(cache_index);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   630
  }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   631
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   632
  jvalue prim_value;  // temp used only in a few cases below
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   633
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   634
  constantTag tag = this_cp->tag_at(index);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   635
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   636
  switch (tag.value()) {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   637
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   638
  case JVM_CONSTANT_UnresolvedClass:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   639
  case JVM_CONSTANT_UnresolvedClassInError:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   640
  case JVM_CONSTANT_Class:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   641
    {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   642
      assert(cache_index == _no_index_sentinel, "should not have been set");
27408
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   643
      Klass* resolved = klass_at_impl(this_cp, index, true, CHECK_NULL);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   644
      // ldc wants the java mirror.
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8651
diff changeset
   645
      result_oop = resolved->java_mirror();
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   646
      break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   647
    }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   648
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   649
  case JVM_CONSTANT_String:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   650
    assert(cache_index != _no_index_sentinel, "should have been set");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   651
    if (this_cp->is_pseudo_string_at(index)) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   652
      result_oop = this_cp->pseudo_string_at(index, cache_index);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   653
      break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   654
    }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   655
    result_oop = string_at_impl(this_cp, index, cache_index, CHECK_NULL);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   656
    break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   657
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   658
  case JVM_CONSTANT_MethodHandleInError:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   659
  case JVM_CONSTANT_MethodTypeInError:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   660
    {
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   661
      throw_resolution_error(this_cp, index, CHECK_NULL);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   662
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   663
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   664
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   665
  case JVM_CONSTANT_MethodHandle:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   666
    {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   667
      int ref_kind                 = this_cp->method_handle_ref_kind_at(index);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   668
      int callee_index             = this_cp->method_handle_klass_index_at(index);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   669
      Symbol*  name =      this_cp->method_handle_name_ref_at(index);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   670
      Symbol*  signature = this_cp->method_handle_signature_ref_at(index);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   671
      if (PrintMiscellaneous)
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   672
        tty->print_cr("resolve JVM_CONSTANT_MethodHandle:%d [%d/%d/%d] %s.%s",
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   673
                      ref_kind, index, this_cp->method_handle_index_at(index),
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   674
                      callee_index, name->as_C_string(), signature->as_C_string());
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   675
      KlassHandle callee;
27408
9a8090dd6ec3 8058093: Test nsk/stress/jck60/jck60014: assert in src/share/vm/oops/constantPool.cpp: should not be resolved otherwise
coleenp
parents: 27247
diff changeset
   676
      { Klass* k = klass_at_impl(this_cp, callee_index, true, CHECK_NULL);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   677
        callee = KlassHandle(THREAD, k);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   678
      }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   679
      KlassHandle klass(THREAD, this_cp->pool_holder());
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   680
      Handle value = SystemDictionary::link_method_handle_constant(klass, ref_kind,
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   681
                                                                   callee, name, signature,
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   682
                                                                   THREAD);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   683
      result_oop = value();
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   684
      if (HAS_PENDING_EXCEPTION) {
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   685
        save_and_throw_exception(this_cp, index, tag, CHECK_NULL);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   686
      }
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   687
      break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   688
    }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   689
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   690
  case JVM_CONSTANT_MethodType:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   691
    {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   692
      Symbol*  signature = this_cp->method_type_signature_at(index);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   693
      if (PrintMiscellaneous)
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   694
        tty->print_cr("resolve JVM_CONSTANT_MethodType [%d/%d] %s",
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   695
                      index, this_cp->method_type_index_at(index),
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   696
                      signature->as_C_string());
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   697
      KlassHandle klass(THREAD, this_cp->pool_holder());
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   698
      Handle value = SystemDictionary::find_method_handle_type(signature, klass, THREAD);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   699
      result_oop = value();
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   700
      if (HAS_PENDING_EXCEPTION) {
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   701
        save_and_throw_exception(this_cp, index, tag, CHECK_NULL);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   702
      }
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   703
      break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   704
    }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   705
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   706
  case JVM_CONSTANT_Integer:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   707
    assert(cache_index == _no_index_sentinel, "should not have been set");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   708
    prim_value.i = this_cp->int_at(index);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   709
    result_oop = java_lang_boxing_object::create(T_INT, &prim_value, CHECK_NULL);
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   710
    break;
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   711
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   712
  case JVM_CONSTANT_Float:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   713
    assert(cache_index == _no_index_sentinel, "should not have been set");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   714
    prim_value.f = this_cp->float_at(index);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   715
    result_oop = java_lang_boxing_object::create(T_FLOAT, &prim_value, CHECK_NULL);
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   716
    break;
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   717
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   718
  case JVM_CONSTANT_Long:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   719
    assert(cache_index == _no_index_sentinel, "should not have been set");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   720
    prim_value.j = this_cp->long_at(index);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   721
    result_oop = java_lang_boxing_object::create(T_LONG, &prim_value, CHECK_NULL);
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   722
    break;
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   723
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   724
  case JVM_CONSTANT_Double:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   725
    assert(cache_index == _no_index_sentinel, "should not have been set");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   726
    prim_value.d = this_cp->double_at(index);
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   727
    result_oop = java_lang_boxing_object::create(T_DOUBLE, &prim_value, CHECK_NULL);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   728
    break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   729
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   730
  default:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   731
    DEBUG_ONLY( tty->print_cr("*** %p: tag at CP[%d/%d] = %d",
24334
36096f7271f4 8023697: failed class resolution reports different class name in detail message for the first and subsequent times
coleenp
parents: 23872
diff changeset
   732
                              this_cp(), index, cache_index, tag.value()));
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   733
    assert(false, "unexpected constant tag");
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   734
    break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   735
  }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   736
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   737
  if (cache_index >= 0) {
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   738
    // Benign race condition:  resolved_references may already be filled in.
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   739
    // The important thing here is that all threads pick up the same result.
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   740
    // It doesn't matter which racing thread wins, as long as only one
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
   741
    // result is used by all threads, and all future queries.
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   742
    oop old_result = this_cp->resolved_references()->atomic_compare_exchange_oop(cache_index, result_oop, NULL);
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   743
    if (old_result == NULL) {
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   744
      return result_oop;  // was installed
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   745
    } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   746
      // Return the winning thread's result.  This can be different than
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   747
      // the result here for MethodHandles.
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   748
      return old_result;
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   749
    }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   750
  } else {
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   751
    return result_oop;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   752
  }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   753
}
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   754
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   755
oop ConstantPool::uncached_string_at(int which, TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   756
  Symbol* sym = unresolved_string_at(which);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   757
  oop str = StringTable::intern(sym, CHECK_(NULL));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   758
  assert(java_lang_String::is_instance(str), "must be string");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   759
  return str;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   760
}
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   761
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   762
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   763
oop ConstantPool::resolve_bootstrap_specifier_at_impl(constantPoolHandle this_cp, int index, TRAPS) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   764
  assert(this_cp->tag_at(index).is_invoke_dynamic(), "Corrupted constant pool");
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   765
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   766
  Handle bsm;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   767
  int argc;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   768
  {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   769
    // JVM_CONSTANT_InvokeDynamic is an ordered pair of [bootm, name&type], plus optional arguments
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   770
    // The bootm, being a JVM_CONSTANT_MethodHandle, has its own cache entry.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   771
    // It is accompanied by the optional arguments.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   772
    int bsm_index = this_cp->invoke_dynamic_bootstrap_method_ref_index_at(index);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   773
    oop bsm_oop = this_cp->resolve_possibly_cached_constant_at(bsm_index, CHECK_NULL);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   774
    if (!java_lang_invoke_MethodHandle::is_instance(bsm_oop)) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   775
      THROW_MSG_NULL(vmSymbols::java_lang_LinkageError(), "BSM not an MethodHandle");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   776
    }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   777
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   778
    // Extract the optional static arguments.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   779
    argc = this_cp->invoke_dynamic_argument_count_at(index);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   780
    if (argc == 0)  return bsm_oop;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   781
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   782
    bsm = Handle(THREAD, bsm_oop);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   783
  }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   784
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   785
  objArrayHandle info;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   786
  {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   787
    objArrayOop info_oop = oopFactory::new_objArray(SystemDictionary::Object_klass(), 1+argc, CHECK_NULL);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   788
    info = objArrayHandle(THREAD, info_oop);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   789
  }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   790
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   791
  info->obj_at_put(0, bsm());
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   792
  for (int i = 0; i < argc; i++) {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   793
    int arg_index = this_cp->invoke_dynamic_argument_index_at(index, i);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   794
    oop arg_oop = this_cp->resolve_possibly_cached_constant_at(arg_index, CHECK_NULL);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   795
    info->obj_at_put(1+i, arg_oop);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   796
  }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   797
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   798
  return info();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   799
}
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11626
diff changeset
   800
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   801
oop ConstantPool::string_at_impl(constantPoolHandle this_cp, int which, int obj_index, TRAPS) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   802
  // If the string has already been interned, this entry will be non-null
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   803
  oop str = this_cp->resolved_references()->obj_at(obj_index);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   804
  if (str != NULL) return str;
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   805
  Symbol* sym = this_cp->unresolved_string_at(which);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   806
  str = StringTable::intern(sym, CHECK_(NULL));
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 23175
diff changeset
   807
  this_cp->string_at_put(which, obj_index, str);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   808
  assert(java_lang_String::is_instance(str), "must be string");
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   809
  return str;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   813
bool ConstantPool::klass_name_at_matches(instanceKlassHandle k,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
                                                int which) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   815
  // Names are interned, so we can compare Symbol*s directly
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   816
  Symbol* cp_name = klass_name_at(which);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
  return (cp_name == k->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   821
// Iterate over symbols and decrement ones which are Symbol*s
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   822
// This is done during GC.
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   823
// Only decrement the UTF8 symbols. Unresolved classes and strings point to
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   824
// these symbols but didn't increment the reference count.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   825
void ConstantPool::unreference_symbols() {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   826
  for (int index = 1; index < length(); index++) { // Index 0 is unused
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   827
    constantTag tag = tag_at(index);
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   828
    if (tag.is_symbol()) {
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   829
      symbol_at(index)->decrement_refcount();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   830
    }
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   831
  }
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   832
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
// Compare this constant pool's entry at index1 to the constant pool
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
// cp2's entry at index2.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   837
bool ConstantPool::compare_entry_to(int index1, constantPoolHandle cp2,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
       int index2, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
20677
ff4fc393de4c 8022592: assert at constantTag.cpp:57: ShouldNotReachHere()
coleenp
parents: 20672
diff changeset
   840
  // The error tags are equivalent to non-error tags when comparing
ff4fc393de4c 8022592: assert at constantTag.cpp:57: ShouldNotReachHere()
coleenp
parents: 20672
diff changeset
   841
  jbyte t1 = tag_at(index1).non_error_value();
ff4fc393de4c 8022592: assert at constantTag.cpp:57: ShouldNotReachHere()
coleenp
parents: 20672
diff changeset
   842
  jbyte t2 = cp2->tag_at(index2).non_error_value();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  if (t1 != t2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    // Not the same entry type so there is nothing else to check. Note
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
    // that this style of checking will consider resolved/unresolved
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   847
    // class pairs as different.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   848
    // From the ConstantPool* API point of view, this is correct
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   849
    // behavior. See VM_RedefineClasses::merge_constant_pools() to see how this
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   850
    // plays out in the context of ConstantPool* merging.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
  switch (t1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
  case JVM_CONSTANT_Class:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   857
    Klass* k1 = klass_at(index1, CHECK_false);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   858
    Klass* k2 = cp2->klass_at(index2, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
    if (k1 == k2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
  case JVM_CONSTANT_ClassIndex:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    int recur1 = klass_index_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
    int recur2 = cp2->klass_index_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
    bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
    if (match) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
  case JVM_CONSTANT_Double:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
    jdouble d1 = double_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
    jdouble d2 = cp2->double_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
    if (d1 == d2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
  case JVM_CONSTANT_Fieldref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
  case JVM_CONSTANT_InterfaceMethodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
  case JVM_CONSTANT_Methodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
    int recur1 = uncached_klass_ref_index_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
    int recur2 = cp2->uncached_klass_ref_index_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
    bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
    if (match) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
      recur1 = uncached_name_and_type_ref_index_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
      recur2 = cp2->uncached_name_and_type_ref_index_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
      match = compare_entry_to(recur1, cp2, recur2, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
      if (match) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
        return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
  case JVM_CONSTANT_Float:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
    jfloat f1 = float_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
    jfloat f2 = cp2->float_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
    if (f1 == f2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  case JVM_CONSTANT_Integer:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
    jint i1 = int_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
    jint i2 = cp2->int_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
    if (i1 == i2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
  case JVM_CONSTANT_Long:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
    jlong l1 = long_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
    jlong l2 = cp2->long_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
    if (l1 == l2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
  case JVM_CONSTANT_NameAndType:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
    int recur1 = name_ref_index_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
    int recur2 = cp2->name_ref_index_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
    bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
    if (match) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
      recur1 = signature_ref_index_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
      recur2 = cp2->signature_ref_index_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
      match = compare_entry_to(recur1, cp2, recur2, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
      if (match) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
        return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
  case JVM_CONSTANT_StringIndex:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
    int recur1 = string_index_at(index1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
    int recur2 = cp2->string_index_at(index2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
    bool match = compare_entry_to(recur1, cp2, recur2, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
    if (match) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
  case JVM_CONSTANT_UnresolvedClass:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
  {
25325
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   954
    Symbol* k1 = klass_name_at(index1);
e3af4e02b0d5 8026977: NPG: Remove ConstantPool::lock
coleenp
parents: 24429
diff changeset
   955
    Symbol* k2 = cp2->klass_name_at(index2);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
    if (k1 == k2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   961
  case JVM_CONSTANT_MethodType:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   962
  {
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
   963
    int k1 = method_type_index_at_error_ok(index1);
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
   964
    int k2 = cp2->method_type_index_at_error_ok(index2);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
   965
    bool match = compare_entry_to(k1, cp2, k2, CHECK_false);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
   966
    if (match) {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   967
      return true;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   968
    }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   969
  } break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   970
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   971
  case JVM_CONSTANT_MethodHandle:
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   972
  {
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
   973
    int k1 = method_handle_ref_kind_at_error_ok(index1);
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
   974
    int k2 = cp2->method_handle_ref_kind_at_error_ok(index2);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   975
    if (k1 == k2) {
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
   976
      int i1 = method_handle_index_at_error_ok(index1);
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
   977
      int i2 = cp2->method_handle_index_at_error_ok(index2);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
   978
      bool match = compare_entry_to(i1, cp2, i2, CHECK_false);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
   979
      if (match) {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   980
        return true;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   981
      }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   982
    }
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   983
  } break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
   984
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   985
  case JVM_CONSTANT_InvokeDynamic:
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   986
  {
17077
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
   987
    int k1 = invoke_dynamic_name_and_type_ref_index_at(index1);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
   988
    int k2 = cp2->invoke_dynamic_name_and_type_ref_index_at(index2);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
   989
    int i1 = invoke_dynamic_bootstrap_specifier_index(index1);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
   990
    int i2 = cp2->invoke_dynamic_bootstrap_specifier_index(index2);
17833
52e915e40b15 8015265: revise the fix for 8007037
ccheung
parents: 17078
diff changeset
   991
    // separate statements and variables because CHECK_false is used
52e915e40b15 8015265: revise the fix for 8007037
ccheung
parents: 17078
diff changeset
   992
    bool match_entry = compare_entry_to(k1, cp2, k2, CHECK_false);
52e915e40b15 8015265: revise the fix for 8007037
ccheung
parents: 17078
diff changeset
   993
    bool match_operand = compare_operand_to(i1, cp2, i2, CHECK_false);
52e915e40b15 8015265: revise the fix for 8007037
ccheung
parents: 17078
diff changeset
   994
    return (match_entry && match_operand);
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   995
  } break;
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
   996
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   997
  case JVM_CONSTANT_String:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
   999
    Symbol* s1 = unresolved_string_at(index1);
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1000
    Symbol* s2 = cp2->unresolved_string_at(index2);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
    if (s1 == s2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
  case JVM_CONSTANT_Utf8:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
  {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1008
    Symbol* s1 = symbol_at(index1);
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1009
    Symbol* s2 = cp2->symbol_at(index2);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
    if (s1 == s2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
  // Invalid is used as the tag for the second constant pool entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
  // occupied by JVM_CONSTANT_Double or JVM_CONSTANT_Long. It should
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
  // not be seen by itself.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
  case JVM_CONSTANT_Invalid: // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
  default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
    break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
} // end compare_entry_to()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
17077
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1029
// Resize the operands array with delta_len and delta_size.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1030
// Used in RedefineClasses for CP merge.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1031
void ConstantPool::resize_operands(int delta_len, int delta_size, TRAPS) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1032
  int old_len  = operand_array_length(operands());
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1033
  int new_len  = old_len + delta_len;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1034
  int min_len  = (delta_len > 0) ? old_len : new_len;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1035
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1036
  int old_size = operands()->length();
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1037
  int new_size = old_size + delta_size;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1038
  int min_size = (delta_size > 0) ? old_size : new_size;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1039
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1040
  ClassLoaderData* loader_data = pool_holder()->class_loader_data();
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1041
  Array<u2>* new_ops = MetadataFactory::new_array<u2>(loader_data, new_size, CHECK);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1042
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1043
  // Set index in the resized array for existing elements only
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1044
  for (int idx = 0; idx < min_len; idx++) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1045
    int offset = operand_offset_at(idx);                       // offset in original array
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1046
    operand_offset_at_put(new_ops, idx, offset + 2*delta_len); // offset in resized array
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1047
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1048
  // Copy the bootstrap specifiers only
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1049
  Copy::conjoint_memory_atomic(operands()->adr_at(2*old_len),
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1050
                               new_ops->adr_at(2*new_len),
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1051
                               (min_size - 2*min_len) * sizeof(u2));
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1052
  // Explicitly deallocate old operands array.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1053
  // Note, it is not needed for 7u backport.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1054
  if ( operands() != NULL) { // the safety check
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1055
    MetadataFactory::free_array<u2>(loader_data, operands());
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1056
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1057
  set_operands(new_ops);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1058
} // end resize_operands()
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1059
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1060
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1061
// Extend the operands array with the length and size of the ext_cp operands.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1062
// Used in RedefineClasses for CP merge.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1063
void ConstantPool::extend_operands(constantPoolHandle ext_cp, TRAPS) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1064
  int delta_len = operand_array_length(ext_cp->operands());
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1065
  if (delta_len == 0) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1066
    return; // nothing to do
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1067
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1068
  int delta_size = ext_cp->operands()->length();
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1069
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1070
  assert(delta_len  > 0 && delta_size > 0, "extended operands array must be bigger");
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1071
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1072
  if (operand_array_length(operands()) == 0) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1073
    ClassLoaderData* loader_data = pool_holder()->class_loader_data();
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1074
    Array<u2>* new_ops = MetadataFactory::new_array<u2>(loader_data, delta_size, CHECK);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1075
    // The first element index defines the offset of second part
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1076
    operand_offset_at_put(new_ops, 0, 2*delta_len); // offset in new array
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1077
    set_operands(new_ops);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1078
  } else {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1079
    resize_operands(delta_len, delta_size, CHECK);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1080
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1081
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1082
} // end extend_operands()
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1083
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1084
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1085
// Shrink the operands array to a smaller array with new_len length.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1086
// Used in RedefineClasses for CP merge.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1087
void ConstantPool::shrink_operands(int new_len, TRAPS) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1088
  int old_len = operand_array_length(operands());
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1089
  if (new_len == old_len) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1090
    return; // nothing to do
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1091
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1092
  assert(new_len < old_len, "shrunken operands array must be smaller");
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1093
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1094
  int free_base  = operand_next_offset_at(new_len - 1);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1095
  int delta_len  = new_len - old_len;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1096
  int delta_size = 2*delta_len + free_base - operands()->length();
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1097
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1098
  resize_operands(delta_len, delta_size, CHECK);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1099
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1100
} // end shrink_operands()
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1101
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1102
15433
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1103
void ConstantPool::copy_operands(constantPoolHandle from_cp,
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1104
                                 constantPoolHandle to_cp,
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1105
                                 TRAPS) {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1106
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1107
  int from_oplen = operand_array_length(from_cp->operands());
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1108
  int old_oplen  = operand_array_length(to_cp->operands());
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1109
  if (from_oplen != 0) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1110
    ClassLoaderData* loader_data = to_cp->pool_holder()->class_loader_data();
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1111
    // append my operands to the target's operands array
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1112
    if (old_oplen == 0) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1113
      // Can't just reuse from_cp's operand list because of deallocation issues
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1114
      int len = from_cp->operands()->length();
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1115
      Array<u2>* new_ops = MetadataFactory::new_array<u2>(loader_data, len, CHECK);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1116
      Copy::conjoint_memory_atomic(
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1117
          from_cp->operands()->adr_at(0), new_ops->adr_at(0), len * sizeof(u2));
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13961
diff changeset
  1118
      to_cp->set_operands(new_ops);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1119
    } else {
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1120
      int old_len  = to_cp->operands()->length();
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1121
      int from_len = from_cp->operands()->length();
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1122
      int old_off  = old_oplen * sizeof(u2);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1123
      int from_off = from_oplen * sizeof(u2);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1124
      // Use the metaspace for the destination constant pool
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1125
      Array<u2>* new_operands = MetadataFactory::new_array<u2>(loader_data, old_len + from_len, CHECK);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1126
      int fillp = 0, len = 0;
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1127
      // first part of dest
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1128
      Copy::conjoint_memory_atomic(to_cp->operands()->adr_at(0),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1129
                                   new_operands->adr_at(fillp),
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1130
                                   (len = old_off) * sizeof(u2));
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1131
      fillp += len;
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1132
      // first part of src
15445
3a166138739c 8006546: JSR 292: typos in the ConstantPool::copy_cp_impl()
sspitsyn
parents: 15438
diff changeset
  1133
      Copy::conjoint_memory_atomic(from_cp->operands()->adr_at(0),
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1134
                                   new_operands->adr_at(fillp),
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1135
                                   (len = from_off) * sizeof(u2));
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1136
      fillp += len;
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1137
      // second part of dest
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1138
      Copy::conjoint_memory_atomic(to_cp->operands()->adr_at(old_off),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1139
                                   new_operands->adr_at(fillp),
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1140
                                   (len = old_len - old_off) * sizeof(u2));
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1141
      fillp += len;
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1142
      // second part of src
15445
3a166138739c 8006546: JSR 292: typos in the ConstantPool::copy_cp_impl()
sspitsyn
parents: 15438
diff changeset
  1143
      Copy::conjoint_memory_atomic(from_cp->operands()->adr_at(from_off),
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1144
                                   new_operands->adr_at(fillp),
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1145
                                   (len = from_len - from_off) * sizeof(u2));
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1146
      fillp += len;
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1147
      assert(fillp == new_operands->length(), "");
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1148
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1149
      // Adjust indexes in the first part of the copied operands array.
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1150
      for (int j = 0; j < from_oplen; j++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1151
        int offset = operand_offset_at(new_operands, old_oplen + j);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1152
        assert(offset == operand_offset_at(from_cp->operands(), j), "correct copy");
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1153
        offset += old_len;  // every new tuple is preceded by old_len extra u2's
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1154
        operand_offset_at_put(new_operands, old_oplen + j, offset);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1155
      }
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1156
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1157
      // replace target operands array with combined array
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1158
      to_cp->set_operands(new_operands);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1159
    }
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1160
  }
15433
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1161
} // end copy_operands()
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1162
15433
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1163
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1164
// Copy this constant pool's entries at start_i to end_i (inclusive)
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1165
// to the constant pool to_cp's entries starting at to_i. A total of
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1166
// (end_i - start_i) + 1 entries are copied.
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1167
void ConstantPool::copy_cp_to_impl(constantPoolHandle from_cp, int start_i, int end_i,
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1168
       constantPoolHandle to_cp, int to_i, TRAPS) {
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1169
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1170
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1171
  int dest_i = to_i;  // leave original alone for debug purposes
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1172
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1173
  for (int src_i = start_i; src_i <= end_i; /* see loop bottom */ ) {
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1174
    copy_entry_to(from_cp, src_i, to_cp, dest_i, CHECK);
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1175
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1176
    switch (from_cp->tag_at(src_i).value()) {
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1177
    case JVM_CONSTANT_Double:
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1178
    case JVM_CONSTANT_Long:
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1179
      // double and long take two constant pool entries
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1180
      src_i += 2;
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1181
      dest_i += 2;
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1182
      break;
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1183
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1184
    default:
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1185
      // all others take one constant pool entry
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1186
      src_i++;
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1187
      dest_i++;
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1188
      break;
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1189
    }
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1190
  }
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1191
  copy_operands(from_cp, to_cp, CHECK);
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1192
0f53fd973576 8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
sspitsyn
parents: 15430
diff changeset
  1193
} // end copy_cp_to_impl()
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
// Copy this constant pool's entry at from_i to the constant pool
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
// to_cp's entry at to_i.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1198
void ConstantPool::copy_entry_to(constantPoolHandle from_cp, int from_i,
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1199
                                        constantPoolHandle to_cp, int to_i,
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1200
                                        TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1202
  int tag = from_cp->tag_at(from_i).value();
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1203
  switch (tag) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
  case JVM_CONSTANT_Class:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1206
    Klass* k = from_cp->klass_at(from_i, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
    to_cp->klass_at_put(to_i, k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
  case JVM_CONSTANT_ClassIndex:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1212
    jint ki = from_cp->klass_index_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
    to_cp->klass_index_at_put(to_i, ki);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  case JVM_CONSTANT_Double:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1218
    jdouble d = from_cp->double_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
    to_cp->double_at_put(to_i, d);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
    // double takes two constant pool entries so init second entry's tag
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
    to_cp->tag_at_put(to_i + 1, JVM_CONSTANT_Invalid);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
  case JVM_CONSTANT_Fieldref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1226
    int class_index = from_cp->uncached_klass_ref_index_at(from_i);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1227
    int name_and_type_index = from_cp->uncached_name_and_type_ref_index_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
    to_cp->field_at_put(to_i, class_index, name_and_type_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
  case JVM_CONSTANT_Float:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1233
    jfloat f = from_cp->float_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
    to_cp->float_at_put(to_i, f);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  case JVM_CONSTANT_Integer:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1239
    jint i = from_cp->int_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
    to_cp->int_at_put(to_i, i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  case JVM_CONSTANT_InterfaceMethodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1245
    int class_index = from_cp->uncached_klass_ref_index_at(from_i);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1246
    int name_and_type_index = from_cp->uncached_name_and_type_ref_index_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
    to_cp->interface_method_at_put(to_i, class_index, name_and_type_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  case JVM_CONSTANT_Long:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1252
    jlong l = from_cp->long_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
    to_cp->long_at_put(to_i, l);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
    // long takes two constant pool entries so init second entry's tag
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
    to_cp->tag_at_put(to_i + 1, JVM_CONSTANT_Invalid);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
  case JVM_CONSTANT_Methodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1260
    int class_index = from_cp->uncached_klass_ref_index_at(from_i);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1261
    int name_and_type_index = from_cp->uncached_name_and_type_ref_index_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
    to_cp->method_at_put(to_i, class_index, name_and_type_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  case JVM_CONSTANT_NameAndType:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1267
    int name_ref_index = from_cp->name_ref_index_at(from_i);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1268
    int signature_ref_index = from_cp->signature_ref_index_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
    to_cp->name_and_type_at_put(to_i, name_ref_index, signature_ref_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  case JVM_CONSTANT_StringIndex:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1274
    jint si = from_cp->string_index_at(from_i);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
    to_cp->string_index_at_put(to_i, si);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
  case JVM_CONSTANT_UnresolvedClass:
23175
892220ab2ae1 8035150: ShouldNotReachHere() in ConstantPool::copy_entry_to
sla
parents: 22750
diff changeset
  1279
  case JVM_CONSTANT_UnresolvedClassInError:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
  {
8651
81b517a9249f 6512830: Error: assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool")
coleenp
parents: 8076
diff changeset
  1281
    // Can be resolved after checking tag, so check the slot first.
81b517a9249f 6512830: Error: assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool")
coleenp
parents: 8076
diff changeset
  1282
    CPSlot entry = from_cp->slot_at(from_i);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1283
    if (entry.is_resolved()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1284
      assert(entry.get_klass()->is_klass(), "must be");
8651
81b517a9249f 6512830: Error: assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool")
coleenp
parents: 8076
diff changeset
  1285
      // Already resolved
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1286
      to_cp->klass_at_put(to_i, entry.get_klass());
8651
81b517a9249f 6512830: Error: assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool")
coleenp
parents: 8076
diff changeset
  1287
    } else {
81b517a9249f 6512830: Error: assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool")
coleenp
parents: 8076
diff changeset
  1288
      to_cp->unresolved_klass_at_put(to_i, entry.get_symbol());
81b517a9249f 6512830: Error: assert(tag_at(which).is_unresolved_klass(), "Corrupted constant pool")
coleenp
parents: 8076
diff changeset
  1289
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1292
  case JVM_CONSTANT_String:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
  {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1294
    Symbol* s = from_cp->unresolved_string_at(from_i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1295
    to_cp->unresolved_string_at_put(to_i, s);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
  case JVM_CONSTANT_Utf8:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
  {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1300
    Symbol* s = from_cp->symbol_at(from_i);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1301
    // Need to increase refcount, the old one will be thrown away and deferenced
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1302
    s->increment_refcount();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
    to_cp->symbol_at_put(to_i, s);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1306
  case JVM_CONSTANT_MethodType:
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
  1307
  case JVM_CONSTANT_MethodTypeInError:
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1308
  {
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
  1309
    jint k = from_cp->method_type_index_at_error_ok(from_i);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1310
    to_cp->method_type_index_at_put(to_i, k);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1311
  } break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1312
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1313
  case JVM_CONSTANT_MethodHandle:
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
  1314
  case JVM_CONSTANT_MethodHandleInError:
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1315
  {
20672
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
  1316
    int k1 = from_cp->method_handle_ref_kind_at_error_ok(from_i);
9340852feeef 8025185: MethodHandleInError and MethodTypeInError not handled in ConstantPool::compare_entry_to and copy_entry_to
coleenp
parents: 20282
diff changeset
  1317
    int k2 = from_cp->method_handle_index_at_error_ok(from_i);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1318
    to_cp->method_handle_index_at_put(to_i, k1, k2);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1319
  } break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1320
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1321
  case JVM_CONSTANT_InvokeDynamic:
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1322
  {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1323
    int k1 = from_cp->invoke_dynamic_bootstrap_specifier_index(from_i);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1324
    int k2 = from_cp->invoke_dynamic_name_and_type_ref_index_at(from_i);
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1325
    k1 += operand_array_length(to_cp->operands());  // to_cp might already have operands
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1326
    to_cp->invoke_dynamic_at_put(to_i, k1, k2);
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1327
  } break;
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1328
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
  // Invalid is used as the tag for the second constant pool entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
  // occupied by JVM_CONSTANT_Double or JVM_CONSTANT_Long. It should
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
  // not be seen by itself.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
  case JVM_CONSTANT_Invalid: // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
  default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
  } break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
} // end copy_entry_to()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
// Search constant pool search_cp for an entry that matches this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
// constant pool's entry at pattern_i. Returns the index of a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
// matching entry or zero (0) if there is no matching entry.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1345
int ConstantPool::find_matching_entry(int pattern_i,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
      constantPoolHandle search_cp, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
  // index zero (0) is not used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
  for (int i = 1; i < search_cp->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
    bool found = compare_entry_to(pattern_i, search_cp, i, CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
    if (found) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
      return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
  return 0;  // entry not found; return unused index zero (0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
} // end find_matching_entry()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
17077
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1360
// Compare this constant pool's bootstrap specifier at idx1 to the constant pool
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1361
// cp2's bootstrap specifier at idx2.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1362
bool ConstantPool::compare_operand_to(int idx1, constantPoolHandle cp2, int idx2, TRAPS) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1363
  int k1 = operand_bootstrap_method_ref_index_at(idx1);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1364
  int k2 = cp2->operand_bootstrap_method_ref_index_at(idx2);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1365
  bool match = compare_entry_to(k1, cp2, k2, CHECK_false);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1366
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1367
  if (!match) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1368
    return false;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1369
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1370
  int argc = operand_argument_count_at(idx1);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1371
  if (argc == cp2->operand_argument_count_at(idx2)) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1372
    for (int j = 0; j < argc; j++) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1373
      k1 = operand_argument_index_at(idx1, j);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1374
      k2 = cp2->operand_argument_index_at(idx2, j);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1375
      match = compare_entry_to(k1, cp2, k2, CHECK_false);
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1376
      if (!match) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1377
        return false;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1378
      }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1379
    }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1380
    return true;           // got through loop; all elements equal
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1381
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1382
  return false;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1383
} // end compare_operand_to()
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1384
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1385
// Search constant pool search_cp for a bootstrap specifier that matches
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1386
// this constant pool's bootstrap specifier at pattern_i index.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1387
// Return the index of a matching bootstrap specifier or (-1) if there is no match.
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1388
int ConstantPool::find_matching_operand(int pattern_i,
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1389
                    constantPoolHandle search_cp, int search_len, TRAPS) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1390
  for (int i = 0; i < search_len; i++) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1391
    bool found = compare_operand_to(pattern_i, search_cp, i, CHECK_(-1));
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1392
    if (found) {
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1393
      return i;
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1394
    }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1395
  }
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1396
  return -1;  // bootstrap specifier not found; return unused index (-1)
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1397
} // end find_matching_operand()
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1398
8607f7c33310 8007037: JSR 292: the VM_RedefineClasses::append_entry() should do cross-checks with indy operands
sspitsyn
parents: 16670
diff changeset
  1399
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1402
const char* ConstantPool::printable_name_at(int which) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
  constantTag tag = tag_at(which);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1406
  if (tag.is_string()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
    return string_at_noresolve(which);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
  } else if (tag.is_klass() || tag.is_unresolved_klass()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
    return klass_name_at(which)->as_C_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
  } else if (tag.is_symbol()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
    return symbol_at(which)->as_C_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
  return "";
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
// JVMTI GetConstantPool support
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1421
// For debugging of constant pool
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1422
const bool debug_cpool = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1424
#define DBG(code) do { if (debug_cpool) { (code); } } while(0)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
static void print_cpool_bytes(jint cnt, u1 *bytes) {
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1427
  const char* WARN_MSG = "Must not be such entry!";
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
  jint size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
  u2   idx1, idx2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
  for (jint idx = 1; idx < cnt; idx++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
    jint ent_size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
    u1   tag  = *bytes++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
    size++;                       // count tag
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
    printf("const #%03d, tag: %02d ", idx, tag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
    switch(tag) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
      case JVM_CONSTANT_Invalid: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
        printf("Invalid");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
      case JVM_CONSTANT_Unicode: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
        printf("Unicode      %s", WARN_MSG);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
      case JVM_CONSTANT_Utf8: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
        u2 len = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
        char str[128];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
        if (len > 127) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
           len = 127;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
        strncpy(str, (char *) (bytes+2), len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
        str[len] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
        printf("Utf8          \"%s\"", str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
        ent_size = 2 + len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
      case JVM_CONSTANT_Integer: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
        u4 val = Bytes::get_Java_u4(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
        printf("int          %d", *(int *) &val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
        ent_size = 4;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
      case JVM_CONSTANT_Float: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
        u4 val = Bytes::get_Java_u4(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
        printf("float        %5.3ff", *(float *) &val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
        ent_size = 4;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
      case JVM_CONSTANT_Long: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
        u8 val = Bytes::get_Java_u8(bytes);
10565
dc90c239f4ec 7089790: integrate bsd-port changes
never
parents: 10008
diff changeset
  1472
        printf("long         "INT64_FORMAT, (int64_t) *(jlong *) &val);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
        ent_size = 8;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
        idx++; // Long takes two cpool slots
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
      case JVM_CONSTANT_Double: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
        u8 val = Bytes::get_Java_u8(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
        printf("double       %5.3fd", *(jdouble *)&val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
        ent_size = 8;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
        idx++; // Double takes two cpool slots
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
      case JVM_CONSTANT_Class: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
        idx1 = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1486
        printf("class        #%03d", idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
        ent_size = 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
      case JVM_CONSTANT_String: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
        idx1 = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
        printf("String       #%03d", idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
        ent_size = 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
      case JVM_CONSTANT_Fieldref: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
        idx1 = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
        idx2 = Bytes::get_Java_u2(bytes+2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
        printf("Field        #%03d, #%03d", (int) idx1, (int) idx2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
        ent_size = 4;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
      case JVM_CONSTANT_Methodref: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
        idx1 = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
        idx2 = Bytes::get_Java_u2(bytes+2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
        printf("Method       #%03d, #%03d", idx1, idx2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
        ent_size = 4;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
      case JVM_CONSTANT_InterfaceMethodref: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
        idx1 = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
        idx2 = Bytes::get_Java_u2(bytes+2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
        printf("InterfMethod #%03d, #%03d", idx1, idx2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
        ent_size = 4;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
      case JVM_CONSTANT_NameAndType: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
        idx1 = Bytes::get_Java_u2(bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
        idx2 = Bytes::get_Java_u2(bytes+2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
        printf("NameAndType  #%03d, #%03d", idx1, idx2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
        ent_size = 4;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
      case JVM_CONSTANT_ClassIndex: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
        printf("ClassIndex  %s", WARN_MSG);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
      case JVM_CONSTANT_UnresolvedClass: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
        printf("UnresolvedClass: %s", WARN_MSG);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
      case JVM_CONSTANT_UnresolvedClassInError: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
        printf("UnresolvedClassInErr: %s", WARN_MSG);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
      case JVM_CONSTANT_StringIndex: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
        printf("StringIndex: %s", WARN_MSG);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
    printf(";\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
    bytes += ent_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
    size  += ent_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
  printf("Cpool size: %d\n", size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
  fflush(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
  return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
} /* end print_cpool_bytes */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
// Returns size of constant pool entry.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1552
jint ConstantPool::cpool_entry_size(jint idx) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
  switch(tag_at(idx).value()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
    case JVM_CONSTANT_Invalid:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
    case JVM_CONSTANT_Unicode:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
      return 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
    case JVM_CONSTANT_Utf8:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
      return 3 + symbol_at(idx)->utf8_length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
    case JVM_CONSTANT_Class:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1562
    case JVM_CONSTANT_String:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
    case JVM_CONSTANT_ClassIndex:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
    case JVM_CONSTANT_UnresolvedClass:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
    case JVM_CONSTANT_UnresolvedClassInError:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
    case JVM_CONSTANT_StringIndex:
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1567
    case JVM_CONSTANT_MethodType:
20070
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1568
    case JVM_CONSTANT_MethodTypeInError:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1569
      return 3;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1571
    case JVM_CONSTANT_MethodHandle:
20070
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1572
    case JVM_CONSTANT_MethodHandleInError:
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1573
      return 4; //tag, ref_kind, ref_index
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1574
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1575
    case JVM_CONSTANT_Integer:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1576
    case JVM_CONSTANT_Float:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1577
    case JVM_CONSTANT_Fieldref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1578
    case JVM_CONSTANT_Methodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1579
    case JVM_CONSTANT_InterfaceMethodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1580
    case JVM_CONSTANT_NameAndType:
7114
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
  1581
      return 5;
65d21c4c6337 6984311: JSR 292 needs optional bootstrap method parameters
jrose
parents: 7111
diff changeset
  1582
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1583
    case JVM_CONSTANT_InvokeDynamic:
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1584
      // u1 tag, u2 bsm, u2 nt
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1585
      return 5;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1586
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1587
    case JVM_CONSTANT_Long:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1588
    case JVM_CONSTANT_Double:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1589
      return 9;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
  assert(false, "cpool_entry_size: Invalid constant pool entry tag");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
  return 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
} /* end cpool_entry_size */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1594
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1595
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1596
// SymbolHashMap is used to find a constant pool index from a string.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
// This function fills in SymbolHashMaps, one for utf8s and one for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
// class names, returns size of the cpool raw bytes.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1599
jint ConstantPool::hash_entries_to(SymbolHashMap *symmap,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
                                          SymbolHashMap *classmap) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1601
  jint size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
  for (u2 idx = 1; idx < length(); idx++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
    u2 tag = tag_at(idx).value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1605
    size += cpool_entry_size(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
    switch(tag) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1608
      case JVM_CONSTANT_Utf8: {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1609
        Symbol* sym = symbol_at(idx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1610
        symmap->add_entry(sym, idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1611
        DBG(printf("adding symbol entry %s = %d\n", sym->as_utf8(), idx));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1613
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1614
      case JVM_CONSTANT_Class:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1615
      case JVM_CONSTANT_UnresolvedClass:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1616
      case JVM_CONSTANT_UnresolvedClassInError: {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1617
        Symbol* sym = klass_name_at(idx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1618
        classmap->add_entry(sym, idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1619
        DBG(printf("adding class entry %s = %d\n", sym->as_utf8(), idx));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1620
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1621
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1622
      case JVM_CONSTANT_Long:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1623
      case JVM_CONSTANT_Double: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1624
        idx++; // Both Long and Double take two cpool slots
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1625
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1626
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1627
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1628
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1629
  return size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1630
} /* end hash_utf8_entries_to */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1631
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1632
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1633
// Copy cpool bytes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1634
// Returns:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1635
//    0, in case of OutOfMemoryError
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1636
//   -1, in case of internal error
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1637
//  > 0, count of the raw cpool bytes that have been copied
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1638
int ConstantPool::copy_cpool_bytes(int cpool_size,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
                                          SymbolHashMap* tbl,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1640
                                          unsigned char *bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1641
  u2   idx1, idx2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1642
  jint size  = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1643
  jint cnt   = length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1644
  unsigned char *start_bytes = bytes;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1645
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1646
  for (jint idx = 1; idx < cnt; idx++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1647
    u1   tag      = tag_at(idx).value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1648
    jint ent_size = cpool_entry_size(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1649
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1650
    assert(size + ent_size <= cpool_size, "Size mismatch");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1651
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1652
    *bytes = tag;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1653
    DBG(printf("#%03hd tag=%03hd, ", idx, tag));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
    switch(tag) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
      case JVM_CONSTANT_Invalid: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
        DBG(printf("JVM_CONSTANT_Invalid"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1659
      case JVM_CONSTANT_Unicode: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1660
        assert(false, "Wrong constant pool tag: JVM_CONSTANT_Unicode");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
        DBG(printf("JVM_CONSTANT_Unicode"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1663
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1664
      case JVM_CONSTANT_Utf8: {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1665
        Symbol* sym = symbol_at(idx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1666
        char*     str = sym->as_utf8();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1667
        // Warning! It's crashing on x86 with len = sym->utf8_length()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1668
        int       len = (int) strlen(str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1669
        Bytes::put_Java_u2((address) (bytes+1), (u2) len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1670
        for (int i = 0; i < len; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1671
            bytes[3+i] = (u1) str[i];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1672
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1673
        DBG(printf("JVM_CONSTANT_Utf8: %s ", str));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1674
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1675
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1676
      case JVM_CONSTANT_Integer: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1677
        jint val = int_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1678
        Bytes::put_Java_u4((address) (bytes+1), *(u4*)&val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1679
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1680
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1681
      case JVM_CONSTANT_Float: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
        jfloat val = float_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1683
        Bytes::put_Java_u4((address) (bytes+1), *(u4*)&val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1684
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1685
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1686
      case JVM_CONSTANT_Long: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1687
        jlong val = long_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1688
        Bytes::put_Java_u8((address) (bytes+1), *(u8*)&val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1689
        idx++;             // Long takes two cpool slots
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1690
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1691
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1692
      case JVM_CONSTANT_Double: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1693
        jdouble val = double_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1694
        Bytes::put_Java_u8((address) (bytes+1), *(u8*)&val);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1695
        idx++;             // Double takes two cpool slots
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1696
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1697
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1698
      case JVM_CONSTANT_Class:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1699
      case JVM_CONSTANT_UnresolvedClass:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1700
      case JVM_CONSTANT_UnresolvedClassInError: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1701
        *bytes = JVM_CONSTANT_Class;
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1702
        Symbol* sym = klass_name_at(idx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1703
        idx1 = tbl->symbol_to_value(sym);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1704
        assert(idx1 != 0, "Have not found a hashtable entry");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1705
        Bytes::put_Java_u2((address) (bytes+1), idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
        DBG(printf("JVM_CONSTANT_Class: idx=#%03hd, %s", idx1, sym->as_utf8()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1707
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1708
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1709
      case JVM_CONSTANT_String: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1710
        *bytes = JVM_CONSTANT_String;
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  1711
        Symbol* sym = unresolved_string_at(idx);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1712
        idx1 = tbl->symbol_to_value(sym);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1713
        assert(idx1 != 0, "Have not found a hashtable entry");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1714
        Bytes::put_Java_u2((address) (bytes+1), idx1);
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1715
        DBG(printf("JVM_CONSTANT_String: idx=#%03hd, %s", idx1, sym->as_utf8()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1716
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1717
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1718
      case JVM_CONSTANT_Fieldref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1719
      case JVM_CONSTANT_Methodref:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1720
      case JVM_CONSTANT_InterfaceMethodref: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
        idx1 = uncached_klass_ref_index_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1722
        idx2 = uncached_name_and_type_ref_index_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1723
        Bytes::put_Java_u2((address) (bytes+1), idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1724
        Bytes::put_Java_u2((address) (bytes+3), idx2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1725
        DBG(printf("JVM_CONSTANT_Methodref: %hd %hd", idx1, idx2));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1726
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1727
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1728
      case JVM_CONSTANT_NameAndType: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1729
        idx1 = name_ref_index_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
        idx2 = signature_ref_index_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1731
        Bytes::put_Java_u2((address) (bytes+1), idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1732
        Bytes::put_Java_u2((address) (bytes+3), idx2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1733
        DBG(printf("JVM_CONSTANT_NameAndType: %hd %hd", idx1, idx2));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1734
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1735
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1736
      case JVM_CONSTANT_ClassIndex: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
        *bytes = JVM_CONSTANT_Class;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1738
        idx1 = klass_index_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1739
        Bytes::put_Java_u2((address) (bytes+1), idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1740
        DBG(printf("JVM_CONSTANT_ClassIndex: %hd", idx1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1741
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1742
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
      case JVM_CONSTANT_StringIndex: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
        *bytes = JVM_CONSTANT_String;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1745
        idx1 = string_index_at(idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1746
        Bytes::put_Java_u2((address) (bytes+1), idx1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
        DBG(printf("JVM_CONSTANT_StringIndex: %hd", idx1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1748
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1749
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1750
      case JVM_CONSTANT_MethodHandle:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1751
      case JVM_CONSTANT_MethodHandleInError: {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1752
        *bytes = JVM_CONSTANT_MethodHandle;
20070
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1753
        int kind = method_handle_ref_kind_at_error_ok(idx);
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1754
        idx1 = method_handle_index_at_error_ok(idx);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1755
        *(bytes+1) = (unsigned char) kind;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1756
        Bytes::put_Java_u2((address) (bytes+2), idx1);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1757
        DBG(printf("JVM_CONSTANT_MethodHandle: %d %hd", kind, idx1));
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1758
        break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1759
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1760
      case JVM_CONSTANT_MethodType:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1761
      case JVM_CONSTANT_MethodTypeInError: {
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1762
        *bytes = JVM_CONSTANT_MethodType;
20070
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1763
        idx1 = method_type_index_at_error_ok(idx);
5882
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1764
        Bytes::put_Java_u2((address) (bytes+1), idx1);
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1765
        DBG(printf("JVM_CONSTANT_MethodType: %hd", idx1));
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1766
        break;
6b2aecc4f7d8 6939203: JSR 292 needs method handle constants
jrose
parents: 5702
diff changeset
  1767
      }
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1768
      case JVM_CONSTANT_InvokeDynamic: {
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1769
        *bytes = tag;
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1770
        idx1 = extract_low_short_from_int(*int_at_addr(idx));
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1771
        idx2 = extract_high_short_from_int(*int_at_addr(idx));
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1772
        assert(idx2 == invoke_dynamic_name_and_type_ref_index_at(idx), "correct half of u4");
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1773
        Bytes::put_Java_u2((address) (bytes+1), idx1);
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1774
        Bytes::put_Java_u2((address) (bytes+3), idx2);
7436
dbc43da3d512 7001379: bootstrap method data needs to be moved from constant pool to a classfile attribute
jrose
parents: 7397
diff changeset
  1775
        DBG(printf("JVM_CONSTANT_InvokeDynamic: %hd %hd", idx1, idx2));
6062
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1776
        break;
bab93afe9df7 6964498: JSR 292 invokedynamic sites need local bootstrap methods
jrose
parents: 5882
diff changeset
  1777
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1778
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1779
    DBG(printf("\n"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1780
    bytes += ent_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1781
    size  += ent_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1782
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1783
  assert(size == cpool_size, "Size mismatch");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1784
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
  // Keep temorarily for debugging until it's stable.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1786
  DBG(print_cpool_bytes(cnt, start_bytes));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1787
  return (int)(bytes - start_bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1788
} /* end copy_cpool_bytes */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1789
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1790
#undef DBG
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 16383
diff changeset
  1791
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1792
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1793
void ConstantPool::set_on_stack(const bool value) {
15430
7c35f12cf1e5 8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents: 15229
diff changeset
  1794
  if (value) {
27247
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1795
    int old_flags = *const_cast<volatile int *>(&_flags);
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1796
    while ((old_flags & _on_stack) == 0) {
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1797
      int new_flags = old_flags | _on_stack;
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1798
      int result = Atomic::cmpxchg(new_flags, &_flags, old_flags);
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1799
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1800
      if (result == old_flags) {
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1801
        // Succeeded.
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1802
        MetadataOnStackMark::record(this, Thread::current());
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1803
        return;
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1804
      }
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1805
      old_flags = result;
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1806
    }
15430
7c35f12cf1e5 8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents: 15229
diff changeset
  1807
  } else {
27247
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 25624
diff changeset
  1808
    // Clearing is done single-threadedly.
15430
7c35f12cf1e5 8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents: 15229
diff changeset
  1809
    _flags &= ~_on_stack;
7c35f12cf1e5 8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents: 15229
diff changeset
  1810
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1811
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1812
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1813
// JSR 292 support for patching constant pool oops after the class is linked and
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1814
// the oop array for resolved references are created.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1815
// We can't do this during classfile parsing, which is how the other indexes are
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1816
// patched.  The other patches are applied early for some error checking
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1817
// so only defer the pseudo_strings.
24322
c2978d1578e3 8036956: remove EnableInvokeDynamic flag
anoll
parents: 23872
diff changeset
  1818
void ConstantPool::patch_resolved_references(GrowableArray<Handle>* cp_patches) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1819
  for (int index = 1; index < cp_patches->length(); index++) { // Index 0 is unused
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1820
    Handle patch = cp_patches->at(index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1821
    if (patch.not_null()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1822
      assert (tag_at(index).is_string(), "should only be string left");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1823
      // Patching a string means pre-resolving it.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1824
      // The spelling in the constant pool is ignored.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1825
      // The constant reference may be any object whatever.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1826
      // If it is not a real interned string, the constant is referred
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1827
      // to as a "pseudo-string", and must be presented to the CP
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1828
      // explicitly, because it may require scavenging.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1829
      int obj_index = cp_to_object_index(index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1830
      pseudo_string_at_put(index, obj_index, patch());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1831
      DEBUG_ONLY(cp_patches->at_put(index, Handle());)
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1832
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1833
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1834
#ifdef ASSERT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1835
  // Ensure that all the patches have been used.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1836
  for (int index = 0; index < cp_patches->length(); index++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1837
    assert(cp_patches->at(index).is_null(),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1838
           err_msg("Unused constant pool patch at %d in class file %s",
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1839
                   index,
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14385
diff changeset
  1840
                   pool_holder()->external_name()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1841
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1842
#endif // ASSERT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1843
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1844
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1845
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1846
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1847
// CompileTheWorld support. Preload all classes loaded references in the passed in constantpool
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1848
void ConstantPool::preload_and_initialize_all_classes(ConstantPool* obj, TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1849
  guarantee(obj->is_constantPool(), "object must be constant pool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1850
  constantPoolHandle cp(THREAD, (ConstantPool*)obj);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1851
  guarantee(cp->pool_holder() != NULL, "must be fully loaded");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1852
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1853
  for (int i = 0; i< cp->length();  i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1854
    if (cp->tag_at(i).is_unresolved_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1855
      // This will force loading of the class
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1856
      Klass* klass = cp->klass_at(i, CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1857
      if (klass->oop_is_instance()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1858
        // Force initialization of class
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1859
        InstanceKlass::cast(klass)->initialize(CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1860
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1861
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1862
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1863
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1864
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1865
#endif
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1866
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1867
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1868
// Printing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1869
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1870
void ConstantPool::print_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1871
  assert(is_constantPool(), "must be constantPool");
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24337
diff changeset
  1872
  st->print_cr("%s", internal_name());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1873
  if (flags() != 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1874
    st->print(" - flags: 0x%x", flags());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1875
    if (has_preresolution()) st->print(" has_preresolution");
15430
7c35f12cf1e5 8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents: 15229
diff changeset
  1876
    if (on_stack()) st->print(" on_stack");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1877
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1878
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1879
  if (pool_holder() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1880
    st->print_cr(" - holder: " INTPTR_FORMAT, pool_holder());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1881
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1882
  st->print_cr(" - cache: " INTPTR_FORMAT, cache());
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 20070
diff changeset
  1883
  st->print_cr(" - resolved_references: " INTPTR_FORMAT, (void *)resolved_references());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1884
  st->print_cr(" - reference_map: " INTPTR_FORMAT, reference_map());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1885
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1886
  for (int index = 1; index < length(); index++) {      // Index 0 is unused
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1887
    ((ConstantPool*)this)->print_entry_on(index, st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1888
    switch (tag_at(index).value()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1889
      case JVM_CONSTANT_Long :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1890
      case JVM_CONSTANT_Double :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1891
        index++;   // Skip entry following eigth-byte constant
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1892
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1893
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1894
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1895
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1896
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1897
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1898
// Print one constant pool entry
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1899
void ConstantPool::print_entry_on(const int index, outputStream* st) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1900
  EXCEPTION_MARK;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1901
  st->print(" - %3d : ", index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1902
  tag_at(index).print_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1903
  st->print(" : ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1904
  switch (tag_at(index).value()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1905
    case JVM_CONSTANT_Class :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1906
      { Klass* k = klass_at(index, CATCH);
16383
57cb9d398a11 8009593: [parfait] Null pointer deference in hotspot/src/share/vm/oops/constantPool.cpp
morris
parents: 15799
diff changeset
  1907
        guarantee(k != NULL, "need klass");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1908
        k->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1909
        st->print(" {0x%lx}", (address)k);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1910
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1911
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1912
    case JVM_CONSTANT_Fieldref :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1913
    case JVM_CONSTANT_Methodref :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1914
    case JVM_CONSTANT_InterfaceMethodref :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1915
      st->print("klass_index=%d", uncached_klass_ref_index_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1916
      st->print(" name_and_type_index=%d", uncached_name_and_type_ref_index_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1917
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1918
    case JVM_CONSTANT_String :
15799
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1919
      if (is_pseudo_string_at(index)) {
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1920
        oop anObj = pseudo_string_at(index);
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1921
        anObj->print_value_on(st);
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1922
        st->print(" {0x%lx}", (address)anObj);
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1923
      } else {
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1924
        unresolved_string_at(index)->print_value_on(st);
6aa92f9debd2 8000797: NPG: is_pseudo_string_at() doesn't work
coleenp
parents: 15445
diff changeset
  1925
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1926
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1927
    case JVM_CONSTANT_Integer :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1928
      st->print("%d", int_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1929
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1930
    case JVM_CONSTANT_Float :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1931
      st->print("%f", float_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1932
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1933
    case JVM_CONSTANT_Long :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1934
      st->print_jlong(long_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1935
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1936
    case JVM_CONSTANT_Double :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1937
      st->print("%lf", double_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1938
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1939
    case JVM_CONSTANT_NameAndType :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1940
      st->print("name_index=%d", name_ref_index_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1941
      st->print(" signature_index=%d", signature_ref_index_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1942
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1943
    case JVM_CONSTANT_Utf8 :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1944
      symbol_at(index)->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1945
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1946
    case JVM_CONSTANT_UnresolvedClass :               // fall-through
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1947
    case JVM_CONSTANT_UnresolvedClassInError: {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1948
      CPSlot entry = slot_at(index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1949
      if (entry.is_resolved()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1950
        entry.get_klass()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1951
      } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1952
        entry.get_symbol()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1953
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1954
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1955
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1956
    case JVM_CONSTANT_MethodHandle :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1957
    case JVM_CONSTANT_MethodHandleInError :
20070
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1958
      st->print("ref_kind=%d", method_handle_ref_kind_at_error_ok(index));
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1959
      st->print(" ref_index=%d", method_handle_index_at_error_ok(index));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1960
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1961
    case JVM_CONSTANT_MethodType :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1962
    case JVM_CONSTANT_MethodTypeInError :
20070
90ee74be2445 8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
iklam
parents: 20066
diff changeset
  1963
      st->print("signature_index=%d", method_type_index_at_error_ok(index));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1964
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1965
    case JVM_CONSTANT_InvokeDynamic :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1966
      {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1967
        st->print("bootstrap_method_index=%d", invoke_dynamic_bootstrap_method_ref_index_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1968
        st->print(" name_and_type_index=%d", invoke_dynamic_name_and_type_ref_index_at(index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1969
        int argc = invoke_dynamic_argument_count_at(index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1970
        if (argc > 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1971
          for (int arg_i = 0; arg_i < argc; arg_i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1972
            int arg = invoke_dynamic_argument_index_at(index, arg_i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1973
            st->print((arg_i == 0 ? " arguments={%d" : ", %d"), arg);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1974
          }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1975
          st->print("}");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1976
        }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1977
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1978
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1979
    default:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1980
      ShouldNotReachHere();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1981
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1982
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1983
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1984
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1985
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1986
void ConstantPool::print_value_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1987
  assert(is_constantPool(), "must be constantPool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1988
  st->print("constant pool [%d]", length());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1989
  if (has_preresolution()) st->print("/preresolution");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1990
  if (operands() != NULL)  st->print("/operands[%d]", operands()->length());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1991
  print_address_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1992
  st->print(" for ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1993
  pool_holder()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1994
  if (pool_holder() != NULL) {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14385
diff changeset
  1995
    bool extra = (pool_holder()->constants() != this);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1996
    if (extra)  st->print(" (extra)");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1997
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1998
  if (cache() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1999
    st->print(" cache=" PTR_FORMAT, cache());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2000
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2001
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2002
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2003
#if INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2004
// Size Statistics
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2005
void ConstantPool::collect_statistics(KlassSizeStats *sz) const {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2006
  sz->_cp_all_bytes += (sz->_cp_bytes          = sz->count(this));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2007
  sz->_cp_all_bytes += (sz->_cp_tags_bytes     = sz->count_array(tags()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2008
  sz->_cp_all_bytes += (sz->_cp_cache_bytes    = sz->count(cache()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2009
  sz->_cp_all_bytes += (sz->_cp_operands_bytes = sz->count_array(operands()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2010
  sz->_cp_all_bytes += (sz->_cp_refmap_bytes   = sz->count_array(reference_map()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2011
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2012
  sz->_ro_bytes += sz->_cp_operands_bytes + sz->_cp_tags_bytes +
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2013
                   sz->_cp_refmap_bytes;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2014
  sz->_rw_bytes += sz->_cp_bytes + sz->_cp_cache_bytes;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2015
}
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2016
#endif // INCLUDE_SERVICES
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2017
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2018
// Verification
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2019
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2020
void ConstantPool::verify_on(outputStream* st) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2021
  guarantee(is_constantPool(), "object must be constant pool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2022
  for (int i = 0; i< length();  i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2023
    constantTag tag = tag_at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2024
    CPSlot entry = slot_at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2025
    if (tag.is_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2026
      if (entry.is_resolved()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2027
        guarantee(entry.get_klass()->is_klass(),    "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2028
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2029
    } else if (tag.is_unresolved_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2030
      if (entry.is_resolved()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2031
        guarantee(entry.get_klass()->is_klass(),    "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2032
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2033
    } else if (tag.is_symbol()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2034
      guarantee(entry.get_symbol()->refcount() != 0, "should have nonzero reference count");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2035
    } else if (tag.is_string()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2036
      guarantee(entry.get_symbol()->refcount() != 0, "should have nonzero reference count");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2037
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2038
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2039
  if (cache() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2040
    // Note: cache() can be NULL before a class is completely setup or
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2041
    // in temporary constant pools used during constant pool merging
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2042
    guarantee(cache()->is_constantPoolCache(), "should be constant pool cache");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2043
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2044
  if (pool_holder() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2045
    // Note: pool_holder() can be NULL in temporary constant pools
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2046
    // used during constant pool merging
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2047
    guarantee(pool_holder()->is_klass(),    "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2048
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2049
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2050
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2051
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  2052
void SymbolHashMap::add_entry(Symbol* sym, u2 value) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2053
  char *str = sym->as_utf8();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2054
  unsigned int hash = compute_hash(str, sym->utf8_length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2055
  unsigned int index = hash % table_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2056
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2057
  // check if already in map
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2058
  // we prefer the first entry since it is more likely to be what was used in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2059
  // the class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2060
  for (SymbolHashMapEntry *en = bucket(index); en != NULL; en = en->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2061
    assert(en->symbol() != NULL, "SymbolHashMapEntry symbol is NULL");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2062
    if (en->hash() == hash && en->symbol() == sym) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2063
        return;  // already there
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2064
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2065
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2066
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2067
  SymbolHashMapEntry* entry = new SymbolHashMapEntry(hash, sym, value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2068
  entry->set_next(bucket(index));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2069
  _buckets[index].set_entry(entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2070
  assert(entry->symbol() != NULL, "SymbolHashMapEntry symbol is NULL");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2071
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2072
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7436
diff changeset
  2073
SymbolHashMapEntry* SymbolHashMap::find_entry(Symbol* sym) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2074
  assert(sym != NULL, "SymbolHashMap::find_entry - symbol is NULL");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2075
  char *str = sym->as_utf8();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2076
  int   len = sym->utf8_length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2077
  unsigned int hash = SymbolHashMap::compute_hash(str, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2078
  unsigned int index = hash % table_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2079
  for (SymbolHashMapEntry *en = bucket(index); en != NULL; en = en->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2080
    assert(en->symbol() != NULL, "SymbolHashMapEntry symbol is NULL");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2081
    if (en->hash() == hash && en->symbol() == sym) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2082
      return en;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2083
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2084
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2085
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2086
}