1 /* 2 * Copyright (c) 2003, 2013, 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 */ 24 25 #ifndef CPU_X86_VM_STUBROUTINES_X86_64_HPP 26 #define CPU_X86_VM_STUBROUTINES_X86_64_HPP 27 28 // This file holds the platform specific parts of the StubRoutines 29 // definition. See stubRoutines.hpp for a description on how to 30 // extend it. 31 32 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; } 33 34 enum platform_dependent_constants { 35 code_size1 = 19000, // simply increase if too small (assembler will crash if too small) 36 code_size2 = 24000 // simply increase if too small (assembler will crash if too small) 37 }; 38 39 class x86 { 40 friend class StubGenerator; 41 42 private: 43 static address _get_previous_fp_entry; 44 static address _get_previous_sp_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 56 public: 57 58 static address get_previous_fp_entry() 59 { 60 return _get_previous_fp_entry; 61 } 62 63 static address get_previous_sp_entry() 64 { 65 return _get_previous_sp_entry; 66 } 67 68 static address f2i_fixup() 69 { 70 return _f2i_fixup; 71 } 72 73 static address f2l_fixup() 74 { 75 return _f2l_fixup; 76 } 77 78 static address d2i_fixup() 79 { 80 return _d2i_fixup; 81 } 82 83 static address d2l_fixup() 84 { 85 return _d2l_fixup; 86 } 87 88 static address float_sign_mask() 89 { 90 return _float_sign_mask; 91 } 92 93 static address float_sign_flip() 94 { 95 return _float_sign_flip; 96 } 97 98 static address double_sign_mask() 99 { 100 return _double_sign_mask; 101 } 102 103 static address double_sign_flip() 104 { 105 return _double_sign_flip; 106 } 107 108 # include "stubRoutines_x86.hpp" 109 110 }; 111 112 #endif // CPU_X86_VM_STUBROUTINES_X86_64_HPP