hotspot/src/share/vm/memory/oopFactory.cpp
author jcoomes
Thu, 13 Aug 2009 16:22:45 -0700
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parent 3693 af387bf37e8d
child 5547 f4b087cbb361
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6845368: large objects cause a crash or unexpected exception Reviewed-by: jmasa, iveresov
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/*
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 * Copyright 1997-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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# include "incls/_precompiled.incl"
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# include "incls/_oopFactory.cpp.incl"
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typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
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  int length = utf8_str == NULL ? 0 : UTF8::unicode_length(utf8_str);
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  typeArrayOop result = new_charArray(length, CHECK_NULL);
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  if (length > 0) {
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    UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length);
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  }
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  return result;
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}
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typeArrayOop oopFactory::new_permanent_charArray(int length, TRAPS) {
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  return typeArrayKlass::cast(Universe::charArrayKlassObj())->allocate_permanent(length, THREAD);
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}
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typeArrayOop oopFactory::new_permanent_byteArray(int length, TRAPS) {
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  return typeArrayKlass::cast(Universe::byteArrayKlassObj())->allocate_permanent(length, THREAD);
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}
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typeArrayOop oopFactory::new_permanent_shortArray(int length, TRAPS) {
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  return typeArrayKlass::cast(Universe::shortArrayKlassObj())->allocate_permanent(length, THREAD);
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}
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typeArrayOop oopFactory::new_permanent_intArray(int length, TRAPS) {
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  return typeArrayKlass::cast(Universe::intArrayKlassObj())->allocate_permanent(length, THREAD);
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}
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typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {
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  klassOop type_asKlassOop = Universe::typeArrayKlassObj(type);
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  typeArrayKlass* type_asArrayKlass = typeArrayKlass::cast(type_asKlassOop);
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  typeArrayOop result = type_asArrayKlass->allocate(length, THREAD);
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  return result;
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}
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objArrayOop oopFactory::new_objArray(klassOop klass, int length, TRAPS) {
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  assert(klass->is_klass(), "must be instance class");
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  if (klass->klass_part()->oop_is_array()) {
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    return ((arrayKlass*)klass->klass_part())->allocate_arrayArray(1, length, THREAD);
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  } else {
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    assert (klass->klass_part()->oop_is_instance(), "new object array with klass not an instanceKlass");
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    return ((instanceKlass*)klass->klass_part())->allocate_objArray(1, length, THREAD);
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  }
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}
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objArrayOop oopFactory::new_system_objArray(int length, TRAPS) {
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  int size = objArrayOopDesc::object_size(length);
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  KlassHandle klass (THREAD, Universe::systemObjArrayKlassObj());
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  objArrayOop o = (objArrayOop)
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    Universe::heap()->permanent_array_allocate(klass, size, length, CHECK_NULL);
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  // initialization not needed, allocated cleared
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  return o;
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}
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constantPoolOop oopFactory::new_constantPool(int length,
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                                             bool is_conc_safe,
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                                             TRAPS) {
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  constantPoolKlass* ck = constantPoolKlass::cast(Universe::constantPoolKlassObj());
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  return ck->allocate(length, is_conc_safe, CHECK_NULL);
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}
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constantPoolCacheOop oopFactory::new_constantPoolCache(int length,
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                                                       bool is_conc_safe,
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                                                       TRAPS) {
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  constantPoolCacheKlass* ck = constantPoolCacheKlass::cast(Universe::constantPoolCacheKlassObj());
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  return ck->allocate(length, is_conc_safe, CHECK_NULL);
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}
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klassOop oopFactory::new_instanceKlass(int vtable_len, int itable_len,
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                                       int static_field_size,
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                                       unsigned int nonstatic_oop_map_count,
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                                       ReferenceType rt, TRAPS) {
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  instanceKlassKlass* ikk = instanceKlassKlass::cast(Universe::instanceKlassKlassObj());
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  return ikk->allocate_instance_klass(vtable_len, itable_len, static_field_size, nonstatic_oop_map_count, rt, CHECK_NULL);
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}
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constMethodOop oopFactory::new_constMethod(int byte_code_size,
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                                           int compressed_line_number_size,
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                                           int localvariable_table_length,
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                                           int checked_exceptions_length,
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                                           bool is_conc_safe,
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                                           TRAPS) {
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  klassOop cmkObj = Universe::constMethodKlassObj();
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  constMethodKlass* cmk = constMethodKlass::cast(cmkObj);
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  return cmk->allocate(byte_code_size, compressed_line_number_size,
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                       localvariable_table_length, checked_exceptions_length,
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                       is_conc_safe,
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                       CHECK_NULL);
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}
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methodOop oopFactory::new_method(int byte_code_size, AccessFlags access_flags,
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                                 int compressed_line_number_size,
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                                 int localvariable_table_length,
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                                 int checked_exceptions_length,
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                                 bool is_conc_safe,
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                                 TRAPS) {
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  methodKlass* mk = methodKlass::cast(Universe::methodKlassObj());
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  assert(!access_flags.is_native() || byte_code_size == 0,
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         "native methods should not contain byte codes");
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  constMethodOop cm = new_constMethod(byte_code_size,
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                                      compressed_line_number_size,
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                                      localvariable_table_length,
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                                      checked_exceptions_length,
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                                      is_conc_safe, CHECK_NULL);
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  constMethodHandle rw(THREAD, cm);
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  return mk->allocate(rw, access_flags, CHECK_NULL);
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}
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methodDataOop oopFactory::new_methodData(methodHandle method, TRAPS) {
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  methodDataKlass* mdk = methodDataKlass::cast(Universe::methodDataKlassObj());
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  return mdk->allocate(method, CHECK_NULL);
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}
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compiledICHolderOop oopFactory::new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS) {
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  compiledICHolderKlass* ck = (compiledICHolderKlass*) Universe::compiledICHolderKlassObj()->klass_part();
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  compiledICHolderOop c = ck->allocate(CHECK_NULL);
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  c->set_holder_method(method());
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  c->set_holder_klass(klass());
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  return c;
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}