jdk8-mips64-public/hotspot: src/share/vm/oops/constMethodKlass.hpp@63997f575155

7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
Reviewed-by: kvn, dcubed

     1 /*

     2  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_OOPS_CONSTMETHODKLASS_HPP

    26 #define SHARE_VM_OOPS_CONSTMETHODKLASS_HPP

    28 #include "oops/klass.hpp"

    29 #include "oops/oop.hpp"

    30 #include "runtime/orderAccess.hpp"

    32 // A constMethodKlass is the klass of a constMethodOop

    34 class constMethodKlass : public Klass {

    35   friend class VMStructs;

    36 private:

    37   juint    _alloc_size;        // allocation profiling support

    38 public:

    39   // Testing

    40   bool oop_is_constMethod() const { return true; }

    41   virtual bool oop_is_parsable(oop obj) const;

    42   virtual bool oop_is_conc_safe(oop obj) const;

    45   // Allocation

    46   DEFINE_ALLOCATE_PERMANENT(constMethodKlass);

    47   constMethodOop allocate(int byte_code_size, int compressed_line_number_size,

    48                           int localvariable_table_length,

    49                           int checked_exceptions_length,

    50                           bool is_conc_safe,

    51                           TRAPS);

    52   static klassOop create_klass(TRAPS);

    54   // Sizing

    55   int oop_size(oop obj) const;

    56   int klass_oop_size() const     { return object_size(); }

    58   // Casting from klassOop

    59   static constMethodKlass* cast(klassOop k) {

    60     assert(k->klass_part()->oop_is_constMethod(), "cast to constMethodKlass");

    61     return (constMethodKlass*) k->klass_part();

    62   }

    64   // Sizing

    65   static int header_size() {

    66     return oopDesc::header_size() + sizeof(constMethodKlass)/HeapWordSize;

    67   }

    68   int object_size() const {

    69     return align_object_size(header_size());

    70   }

    72   // Garbage collection

    73   void oop_follow_contents(oop obj);

    74   int  oop_adjust_pointers(oop obj);

    76   // Parallel Scavenge and Parallel Old

    77   PARALLEL_GC_DECLS

    79   // Allocation profiling support

    80   juint alloc_size() const              { return _alloc_size; }

    81   void set_alloc_size(juint n)          { _alloc_size = n; }

    83   // Iterators

    84   int oop_oop_iterate(oop obj, OopClosure* blk);

    85   int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);

    87   // Printing

    88   void oop_print_value_on(oop obj, outputStream* st);

    89   void oop_print_on      (oop obj, outputStream* st);

    91   // Verify operations

    92   const char* internal_name() const;

    93   void oop_verify_on(oop obj, outputStream* st);

    94   bool oop_partially_loaded(oop obj) const;

    95   void oop_set_partially_loaded(oop obj);

    96 };

    98 #endif // SHARE_VM_OOPS_CONSTMETHODKLASS_HPP

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