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 */ 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 = 22000 // simply increase if too small (assembler will crash if too small) 37 }; 38 39 // MethodHandles adapters 40 enum method_handles_platform_dependent_constants { 41 method_handles_adapters_code_size = 40000 42 }; 43 44 class x86 { 45 friend class StubGenerator; 46 47 private: 48 static address _get_previous_fp_entry; 49 static address _verify_mxcsr_entry; 50 51 static address _f2i_fixup; 52 static address _f2l_fixup; 53 static address _d2i_fixup; 54 static address _d2l_fixup; 55 56 static address _float_sign_mask; 57 static address _float_sign_flip; 58 static address _double_sign_mask; 59 static address _double_sign_flip; 60 static address _mxcsr_std; 61 62 public: 63 64 static address get_previous_fp_entry() 65 { 66 return _get_previous_fp_entry; 67 } 68 69 static address verify_mxcsr_entry() 70 { 71 return _verify_mxcsr_entry; 72 } 73 74 static address f2i_fixup() 75 { 76 return _f2i_fixup; 77 } 78 79 static address f2l_fixup() 80 { 81 return _f2l_fixup; 82 } 83 84 static address d2i_fixup() 85 { 86 return _d2i_fixup; 87 } 88 89 static address d2l_fixup() 90 { 91 return _d2l_fixup; 92 } 93 94 static address float_sign_mask() 95 { 96 return _float_sign_mask; 97 } 98 99 static address float_sign_flip() 100 { 101 return _float_sign_flip; 102 } 103 104 static address double_sign_mask() 105 { 106 return _double_sign_mask; 107 } 108 109 static address double_sign_flip() 110 { 111 return _double_sign_flip; 112 } 113 114 static address mxcsr_std() 115 { 116 return _mxcsr_std; 117 } 118 }; 119 120 #endif // CPU_X86_VM_STUBROUTINES_X86_64_HPP