1 /* 2 * Copyright (c) 2013, Red Hat Inc. 3 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. 4 * All rights reserved. 5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 * 7 * This code is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 only, as 9 * published by the Free Software Foundation. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 * 25 */ 26 27 #ifndef CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP 28 #define CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP 29 30 // This file holds the platform specific parts of the StubRoutines 31 // definition. See stubRoutines.hpp for a description on how to 32 // extend it. 33 34 static bool returns_to_call_stub(address return_pc) { 35 return return_pc == _call_stub_return_address; 36 } 37 38 enum platform_dependent_constants { 39 code_size1 = 19000, // simply increase if too small (assembler will crash if too small) 40 code_size2 = 22000 // simply increase if too small (assembler will crash if too small) 41 }; 42 43 class aarch64 { 44 friend class StubGenerator; 45 46 private: 47 static address _get_previous_fp_entry; 48 static address _get_previous_sp_entry; 49 50 static address _f2i_fixup; 51 static address _f2l_fixup; 52 static address _d2i_fixup; 53 static address _d2l_fixup; 54 55 static address _float_sign_mask; 56 static address _float_sign_flip; 57 static address _double_sign_mask; 58 static address _double_sign_flip; 59 60 static address _zero_longs; 61 62 public: 63 64 static address get_previous_fp_entry() 65 { 66 return _get_previous_fp_entry; 67 } 68 69 static address get_previous_sp_entry() 70 { 71 return _get_previous_sp_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 get_zero_longs() 115 { 116 return _zero_longs; 117 } 118 119 private: 120 static juint _crc_table[]; 121 122 }; 123 124 #endif // CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP