1 /*
2 * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2012, 2019, SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_PPC_VM_STUBROUTINES_PPC_HPP
27 #define CPU_PPC_VM_STUBROUTINES_PPC_HPP
28
29 // This file holds the platform specific parts of the StubRoutines
30 // definition. See stubRoutines.hpp for a description on how to
31 // extend it.
32
returns_to_call_stub(address return_pc)33 static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; }
34
35 enum platform_dependent_constants {
36 code_size1 = 20000, // simply increase if too small (assembler will crash if too small)
37 code_size2 = 24000 // simply increase if too small (assembler will crash if too small)
38 };
39
40 // CRC32 Intrinsics.
41 #define CRC32_TABLE_SIZE (4 * 256)
42 #define REVERSE_CRC32_POLY 0xEDB88320
43 #define REVERSE_CRC32C_POLY 0x82F63B78
44 #define INVERSE_REVERSE_CRC32_POLY 0x1aab14226ull
45 #define INVERSE_REVERSE_CRC32C_POLY 0x105fd79bdull
46 #define CRC32_UNROLL_FACTOR 2048
47 #define CRC32_UNROLL_FACTOR2 8
48
49 static address generate_crc_constants(juint reverse_poly);
50
51 #endif // CPU_PPC_VM_STUBROUTINES_PPC_HPP
52