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 // 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 code_size1 = 19000, // simply increase if too small (assembler will crash if too small) 33 code_size2 = 22000 // simply increase if too small (assembler will crash if too small) 34 }; 35 36 // MethodHandles adapters 37 enum method_handles_platform_dependent_constants { 38 method_handles_adapters_code_size = 40000 39 }; 40 41 class x86 { 42 friend class StubGenerator; 43 44 private: 45 static address _get_previous_fp_entry; 46 static address _verify_mxcsr_entry; 47 48 static address _f2i_fixup; 49 static address _f2l_fixup; 50 static address _d2i_fixup; 51 static address _d2l_fixup; 52 53 static address _float_sign_mask; 54 static address _float_sign_flip; 55 static address _double_sign_mask; 56 static address _double_sign_flip; 57 static address _mxcsr_std; 58 59 public: 60 61 static address get_previous_fp_entry() 62 { 63 return _get_previous_fp_entry; 64 } 65 66 static address verify_mxcsr_entry() 67 { 68 return _verify_mxcsr_entry; 69 } 70 71 static address f2i_fixup() 72 { 73 return _f2i_fixup; 74 } 75 76 static address f2l_fixup() 77 { 78 return _f2l_fixup; 79 } 80 81 static address d2i_fixup() 82 { 83 return _d2i_fixup; 84 } 85 86 static address d2l_fixup() 87 { 88 return _d2l_fixup; 89 } 90 91 static address float_sign_mask() 92 { 93 return _float_sign_mask; 94 } 95 96 static address float_sign_flip() 97 { 98 return _float_sign_flip; 99 } 100 101 static address double_sign_mask() 102 { 103 return _double_sign_mask; 104 } 105 106 static address double_sign_flip() 107 { 108 return _double_sign_flip; 109 } 110 111 static address mxcsr_std() 112 { 113 return _mxcsr_std; 114 } 115 };