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  */
  24 
  25 #ifndef SHARE_VM_OOPS_ARRAYOOP_HPP
  26 #define SHARE_VM_OOPS_ARRAYOOP_HPP
  27 
  28 #include "memory/universe.inline.hpp"
  29 #include "oops/oop.hpp"

  30 
  31 // arrayOopDesc is the abstract baseclass for all arrays.  It doesn't
  32 // declare pure virtual to enforce this because that would allocate a vtbl
  33 // in each instance, which we don't want.
  34 
  35 // The layout of array Oops is:
  36 //
  37 //  markOop
  38 //  Klass*    // 32 bits if compressed but declared 64 in LP64.
  39 //  length    // shares klass memory or allocated after declared fields.
  40 
  41 
  42 class arrayOopDesc : public oopDesc {
  43   friend class VMStructs;
  44   friend class arrayOopDescTest;
  45 
  46   // Interpreter/Compiler offsets
  47 
  48   // Header size computation.
  49   // The header is considered the oop part of this type plus the length.

  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  */
  24 
  25 #ifndef SHARE_VM_OOPS_ARRAYOOP_HPP
  26 #define SHARE_VM_OOPS_ARRAYOOP_HPP
  27 
  28 #include "memory/universe.inline.hpp"
  29 #include "oops/oop.hpp"
  30 #include "utilities/align.hpp"
  31 
  32 // arrayOopDesc is the abstract baseclass for all arrays.  It doesn't
  33 // declare pure virtual to enforce this because that would allocate a vtbl
  34 // in each instance, which we don't want.
  35 
  36 // The layout of array Oops is:
  37 //
  38 //  markOop
  39 //  Klass*    // 32 bits if compressed but declared 64 in LP64.
  40 //  length    // shares klass memory or allocated after declared fields.
  41 
  42 
  43 class arrayOopDesc : public oopDesc {
  44   friend class VMStructs;
  45   friend class arrayOopDescTest;
  46 
  47   // Interpreter/Compiler offsets
  48 
  49   // Header size computation.
  50   // The header is considered the oop part of this type plus the length.