1 /* 2 * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2012, 2016 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 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 = 20000 // simply increase if too small (assembler will crash if too small) 38 }; 39 40 // CRC32 Intrinsics. 41 #define CRC32_COLUMN_SIZE 256 42 #define CRC32_BYFOUR 43 #ifdef CRC32_BYFOUR 44 #define CRC32_TABLES 8 45 #else 46 #define CRC32_TABLES 1 47 #endif 48 #define CRC32_CONSTANTS_SIZE 1084 49 #define CRC32_BARRET_CONSTANTS 10 50 51 class ppc64 { 52 friend class StubGenerator; 53 54 private: 55 56 // CRC32 Intrinsics. 57 static juint _crc_table[CRC32_TABLES][CRC32_COLUMN_SIZE]; 58 static juint* _constants; 59 static juint* _barret_constants; 60 61 public: 62 63 // CRC32 Intrinsics. 64 static void generate_load_crc_table_addr(MacroAssembler* masm, Register table); 65 static void generate_load_crc_constants_addr(MacroAssembler* masm, Register table); 66 static void generate_load_crc_barret_constants_addr(MacroAssembler* masm, Register table); 67 static juint* generate_crc_constants(); 68 static juint* generate_crc_barret_constants(); 69 70 }; 71 72 #endif // CPU_PPC_VM_STUBROUTINES_PPC_HPP