hotspot/src/share/vm/oops/objArrayKlass.hpp
author jrose
Fri, 08 Jan 2010 13:47:01 -0800
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6912062: disassembler plugin needs to produce symbolic information in product mode Summary: More informative disassembly in product mode. Also, a more consistent CompileCommand syntax. Reviewed-by: never
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/*
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 * Copyright 1997-2008 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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// objArrayKlass is the klass for objArrays
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class objArrayKlass : public arrayKlass {
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  friend class VMStructs;
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  klassOop _element_klass;            // The klass of the elements of this array type
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  klassOop _bottom_klass;             // The one-dimensional type (instanceKlass or typeArrayKlass)
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  // Instance variables
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  klassOop element_klass() const      { return _element_klass; }
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  void set_element_klass(klassOop k)  { oop_store_without_check((oop*) &_element_klass, (oop) k); }
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  oop* element_klass_addr()           { return (oop*)&_element_klass; }
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  klassOop bottom_klass() const       { return _bottom_klass; }
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  void set_bottom_klass(klassOop k)   { oop_store_without_check((oop*) &_bottom_klass, (oop) k); }
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  oop* bottom_klass_addr()            { return (oop*)&_bottom_klass; }
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  // Compiler/Interpreter offset
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  static int element_klass_offset_in_bytes() { return offset_of(objArrayKlass, _element_klass); }
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  // Dispatched operation
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  bool can_be_primary_super_slow() const;
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  objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS);
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  bool compute_is_subtype_of(klassOop k);
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  bool oop_is_objArray_slow()  const  { return true; }
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  int oop_size(oop obj) const;
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  int klass_oop_size() const          { return object_size(); }
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  // Allocation
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  DEFINE_ALLOCATE_PERMANENT(objArrayKlass);
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  objArrayOop allocate(int length, TRAPS);
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  oop multi_allocate(int rank, jint* sizes, TRAPS);
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  // Copying
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  void  copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
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  // Compute protection domain
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  oop protection_domain() { return Klass::cast(bottom_klass())->protection_domain(); }
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  // Compute class loader
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  oop class_loader() const { return Klass::cast(bottom_klass())->class_loader(); }
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  // Either oop or narrowOop depending on UseCompressedOops.
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  // must be called from within objArrayKlass.cpp
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  template <class T> void do_copy(arrayOop s, T* src, arrayOop d,
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                                  T* dst, int length, TRAPS);
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  // Returns the objArrayKlass for n'th dimension.
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  virtual klassOop array_klass_impl(bool or_null, int n, TRAPS);
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  // Returns the array class with this class as element type.
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  virtual klassOop array_klass_impl(bool or_null, TRAPS);
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  // Casting from klassOop
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  static objArrayKlass* cast(klassOop k) {
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    assert(k->klass_part()->oop_is_objArray_slow(), "cast to objArrayKlass");
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    return (objArrayKlass*) k->klass_part();
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  }
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  // Sizing
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  static int header_size()                { return oopDesc::header_size() + sizeof(objArrayKlass)/HeapWordSize; }
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  int object_size() const                 { return arrayKlass::object_size(header_size()); }
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  // Initialization (virtual from Klass)
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  void initialize(TRAPS);
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  // Garbage collection
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  void oop_follow_contents(oop obj);
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  int  oop_adjust_pointers(oop obj);
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  // Parallel Scavenge and Parallel Old
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  PARALLEL_GC_DECLS
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  // Iterators
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  int oop_oop_iterate(oop obj, OopClosure* blk) {
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    return oop_oop_iterate_v(obj, blk);
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  }
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  int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
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    return oop_oop_iterate_v_m(obj, blk, mr);
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  }
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#define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix)   \
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  int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk);         \
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  int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk,      \
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                                     MemRegion mr);                     \
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  int oop_oop_iterate_range##nv_suffix(oop obj, OopClosureType* blk,    \
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                                     int start, int end);
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  ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
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  ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
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  // JVM support
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  jint compute_modifier_flags(TRAPS) const;
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   static klassOop array_klass_impl   (objArrayKlassHandle this_oop, bool or_null, int n, TRAPS);
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  // Printing
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  void oop_print_value_on(oop obj, outputStream* st);
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#ifndef PRODUCT
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  void oop_print_on      (oop obj, outputStream* st);
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#endif //PRODUCT
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  // Verification
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  const char* internal_name() const;
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  void oop_verify_on(oop obj, outputStream* st);
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  void oop_verify_old_oop(oop obj, oop* p, bool allow_dirty);
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  void oop_verify_old_oop(oop obj, narrowOop* p, bool allow_dirty);
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};