duke@435: /*
duke@435:  * Copyright 2003-2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // This file holds the platform specific parts of the StubRoutines
duke@435: // definition. See stubRoutines.hpp for a description on how to
duke@435: // extend it.
duke@435: 
duke@435: static bool    returns_to_call_stub(address return_pc)   { return return_pc == _call_stub_return_address; }
duke@435: 
duke@435: enum platform_dependent_constants
duke@435: {
never@739:   code_size1 =  19000, // simply increase if too small (assembler will
duke@435:                       // crash if too small)
duke@435:   code_size2 = 22000  // simply increase if too small (assembler will
duke@435:                       // crash if too small)
duke@435: };
duke@435: 
never@739: class x86 {
duke@435:  friend class StubGenerator;
duke@435: 
duke@435:  private:
duke@435:   static address _get_previous_fp_entry;
duke@435:   static address _verify_mxcsr_entry;
duke@435: 
duke@435:   static address _f2i_fixup;
duke@435:   static address _f2l_fixup;
duke@435:   static address _d2i_fixup;
duke@435:   static address _d2l_fixup;
duke@435: 
duke@435:   static address _float_sign_mask;
duke@435:   static address _float_sign_flip;
duke@435:   static address _double_sign_mask;
duke@435:   static address _double_sign_flip;
duke@435:   static address _mxcsr_std;
duke@435: 
duke@435:  public:
duke@435: 
duke@435:   static address get_previous_fp_entry()
duke@435:   {
duke@435:     return _get_previous_fp_entry;
duke@435:   }
duke@435: 
duke@435:   static address verify_mxcsr_entry()
duke@435:   {
duke@435:     return _verify_mxcsr_entry;
duke@435:   }
duke@435: 
duke@435:   static address f2i_fixup()
duke@435:   {
duke@435:     return _f2i_fixup;
duke@435:   }
duke@435: 
duke@435:   static address f2l_fixup()
duke@435:   {
duke@435:     return _f2l_fixup;
duke@435:   }
duke@435: 
duke@435:   static address d2i_fixup()
duke@435:   {
duke@435:     return _d2i_fixup;
duke@435:   }
duke@435: 
duke@435:   static address d2l_fixup()
duke@435:   {
duke@435:     return _d2l_fixup;
duke@435:   }
duke@435: 
duke@435:   static address float_sign_mask()
duke@435:   {
duke@435:     return _float_sign_mask;
duke@435:   }
duke@435: 
duke@435:   static address float_sign_flip()
duke@435:   {
duke@435:     return _float_sign_flip;
duke@435:   }
duke@435: 
duke@435:   static address double_sign_mask()
duke@435:   {
duke@435:     return _double_sign_mask;
duke@435:   }
duke@435: 
duke@435:   static address double_sign_flip()
duke@435:   {
duke@435:     return _double_sign_flip;
duke@435:   }
duke@435: 
duke@435:   static address mxcsr_std()
duke@435:   {
duke@435:     return _mxcsr_std;
duke@435:   }
duke@435: };