1 /*

     2  * Copyright 2003-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    24 

    25 // This file holds the platform specific parts of the StubRoutines

    26 // definition. See stubRoutines.hpp for a description on how to

    27 // extend it.

    28 

    29 static bool    returns_to_call_stub(address return_pc)   { return return_pc == _call_stub_return_address; }

    30 

    31 enum platform_dependent_constants

    32 {

    33   code_size1 =  9000, // simply increase if too small (assembler will

    34                       // crash if too small)

    35   code_size2 = 22000  // simply increase if too small (assembler will

    36                       // crash if too small)

    37 };

    38 

    39 class amd64 {

    40  friend class StubGenerator;

    41 

    42  private:

    43   static address _get_previous_fp_entry;

    44   static address _verify_mxcsr_entry;

    45 

    46   static address _f2i_fixup;

    47   static address _f2l_fixup;

    48   static address _d2i_fixup;

    49   static address _d2l_fixup;

    50 

    51   static address _float_sign_mask;

    52   static address _float_sign_flip;

    53   static address _double_sign_mask;

    54   static address _double_sign_flip;

    55   static address _mxcsr_std;

    56 

    57  public:

    58 

    59   static address get_previous_fp_entry()

    60   {

    61     return _get_previous_fp_entry;

    62   }

    63 

    64   static address verify_mxcsr_entry()

    65   {

    66     return _verify_mxcsr_entry;

    67   }

    68 

    69   static address f2i_fixup()

    70   {

    71     return _f2i_fixup;

    72   }

    73 

    74   static address f2l_fixup()

    75   {

    76     return _f2l_fixup;

    77   }

    78 

    79   static address d2i_fixup()

    80   {

    81     return _d2i_fixup;

    82   }

    83 

    84   static address d2l_fixup()

    85   {

    86     return _d2l_fixup;

    87   }

    88 

    89   static address float_sign_mask()

    90   {

    91     return _float_sign_mask;

    92   }

    93 

    94   static address float_sign_flip()

    95   {

    96     return _float_sign_flip;

    97   }

    98 

    99   static address double_sign_mask()

   100   {

   101     return _double_sign_mask;

   102   }

   103 

   104   static address double_sign_flip()

   105   {

   106     return _double_sign_flip;

   107   }

   108 

   109   static address mxcsr_std()

   110   {

   111     return _mxcsr_std;

   112   }

   113 };