| /* |
| * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2014, Red Hat Inc. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP |
| #define CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP |
| |
| // This file holds the platform specific parts of the StubRoutines |
| // definition. See stubRoutines.hpp for a description on how to |
| // extend it. |
| |
| // n.b. if we are notifying entry/exit to the simulator then the call |
| // stub does a notify at normal return placing |
| // call_stub_return_address one instruction beyond the notify. the |
| // latter address is sued by the stack unwind code when doign an |
| // exception return. |
| static bool returns_to_call_stub(address return_pc) { |
| return return_pc == _call_stub_return_address + (NotifySimulator ? -4 : 0); |
| } |
| |
| enum platform_dependent_constants { |
| code_size1 = 19000, // simply increase if too small (assembler will crash if too small) |
| code_size2 = 22000 // simply increase if too small (assembler will crash if too small) |
| }; |
| |
| class aarch64 { |
| friend class StubGenerator; |
| |
| private: |
| static address _get_previous_fp_entry; |
| static address _get_previous_sp_entry; |
| |
| static address _f2i_fixup; |
| static address _f2l_fixup; |
| static address _d2i_fixup; |
| static address _d2l_fixup; |
| |
| static address _float_sign_mask; |
| static address _float_sign_flip; |
| static address _double_sign_mask; |
| static address _double_sign_flip; |
| |
| static address _zero_blocks; |
| |
| static address _has_negatives; |
| static address _has_negatives_long; |
| static bool _completed; |
| |
| public: |
| |
| static address get_previous_fp_entry() |
| { |
| return _get_previous_fp_entry; |
| } |
| |
| static address get_previous_sp_entry() |
| { |
| return _get_previous_sp_entry; |
| } |
| |
| static address f2i_fixup() |
| { |
| return _f2i_fixup; |
| } |
| |
| static address f2l_fixup() |
| { |
| return _f2l_fixup; |
| } |
| |
| static address d2i_fixup() |
| { |
| return _d2i_fixup; |
| } |
| |
| static address d2l_fixup() |
| { |
| return _d2l_fixup; |
| } |
| |
| static address float_sign_mask() |
| { |
| return _float_sign_mask; |
| } |
| |
| static address float_sign_flip() |
| { |
| return _float_sign_flip; |
| } |
| |
| static address double_sign_mask() |
| { |
| return _double_sign_mask; |
| } |
| |
| static address double_sign_flip() |
| { |
| return _double_sign_flip; |
| } |
| |
| static address zero_blocks() { |
| return _zero_blocks; |
| } |
| |
| static address has_negatives() { |
| return _has_negatives; |
| } |
| |
| static address has_negatives_long() { |
| return _has_negatives_long; |
| } |
| |
| static bool complete() { |
| return _completed; |
| } |
| |
| static void set_completed() { |
| _completed = true; |
| } |
| |
| private: |
| static juint _crc_table[]; |
| |
| }; |
| |
| #endif // CPU_AARCH64_VM_STUBROUTINES_AARCH64_HPP |