| /* |
| * Copyright (c) 1997, 2016, Oracle and/or its affiliates. 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_SPARC_VM_STUBROUTINES_SPARC_HPP |
| #define CPU_SPARC_VM_STUBROUTINES_SPARC_HPP |
| |
| // This file holds the platform specific parts of the StubRoutines |
| // definition. See stubRoutines.hpp for a description on how to |
| // extend it. |
| |
| |
| // So unfortunately c2 will call with a pc from a frame object |
| // (already adjusted) and a raw pc (unadjusted), so we need to check both. |
| // It didn't use to be like this before adapter removal. |
| static bool returns_to_call_stub(address return_pc) { |
| return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) || |
| (return_pc == _call_stub_return_address ); |
| } |
| |
| enum /* platform_dependent_constants */ { |
| // %%%%%%%% May be able to shrink this a lot |
| code_size1 = 20000, // simply increase if too small (assembler will crash if too small) |
| code_size2 = 27000 // simply increase if too small (assembler will crash if too small) |
| }; |
| |
| class Sparc { |
| friend class StubGenerator; |
| |
| private: |
| static address _test_stop_entry; |
| static address _stop_subroutine_entry; |
| static address _flush_callers_register_windows_entry; |
| |
| static address _partial_subtype_check; |
| // masks and table for CRC32 |
| static uint64_t _crc_by128_masks[]; |
| static juint _crc_table[]; |
| static juint _crc32c_table[]; |
| |
| public: |
| // test assembler stop routine by setting registers |
| static void (*test_stop_entry()) () { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); } |
| |
| // a subroutine for debugging assembler code |
| static address stop_subroutine_entry_address() { return (address)&_stop_subroutine_entry; } |
| |
| // flushes (all but current) register window |
| static intptr_t* (*flush_callers_register_windows_func())() { return CAST_TO_FN_PTR(intptr_t* (*)(void), _flush_callers_register_windows_entry); } |
| |
| static address partial_subtype_check() { return _partial_subtype_check; } |
| |
| static address crc_by128_masks_addr() { return (address)_crc_by128_masks; } |
| }; |
| |
| #endif // CPU_SPARC_VM_STUBROUTINES_SPARC_HPP |