author | herrick |
Thu, 17 Oct 2019 07:55:35 -0400 | |
branch | JDK-8200758-branch |
changeset 58670 | 6fb9e12d5595 |
parent 53244 | 9807daeb47c4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved. |
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* Copyright (c) 2016, 2017, SAP SE. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#ifndef CPU_S390_STUBROUTINES_S390_HPP |
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#define CPU_S390_STUBROUTINES_S390_HPP |
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// This file holds the platform specific parts of the StubRoutines |
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// definition. See stubRoutines.hpp for a description on how to extend it. |
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static bool returns_to_call_stub(address return_pc) { return return_pc == _call_stub_return_address; } |
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enum { // Platform dependent constants. |
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// TODO: May be able to shrink this a lot |
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code_size1 = 20000, // Simply increase if too small (assembler will crash if too small). |
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code_size2 = 20000 // Simply increase if too small (assembler will crash if too small). |
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}; |
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// MethodHandles adapters |
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enum method_handles_platform_dependent_constants { |
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method_handles_adapters_code_size = 5000 |
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}; |
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#define CRC32_COLUMN_SIZE 256 |
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#define CRC32_BYFOUR |
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#ifdef CRC32_BYFOUR |
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#define CRC32_TABLES 8 |
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#else |
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#define CRC32_TABLES 1 |
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#endif |
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// Comapct string intrinsics: Translate table for string inflate intrinsic. Used by trot instruction. |
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#define TROT_ALIGNMENT 8 // Required by instruction, |
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// guaranteed by jlong table element type. |
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#define TROT_COLUMN_SIZE (256*sizeof(jchar)/sizeof(jlong)) |
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class zarch { |
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friend class StubGenerator; |
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public: |
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enum { nof_instance_allocators = 10 }; |
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// allocator lock values |
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enum { |
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unlocked = 0, |
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locked = 1 |
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}; |
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private: |
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static int _atomic_memory_operation_lock; |
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static address _partial_subtype_check; |
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static juint _crc_table[CRC32_TABLES][CRC32_COLUMN_SIZE]; |
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static juint _crc32c_table[CRC32_TABLES][CRC32_COLUMN_SIZE]; |
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// Comapct string intrinsics: Translate table for string inflate intrinsic. Used by trot instruction. |
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static address _trot_table_addr; |
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static jlong _trot_table[TROT_COLUMN_SIZE]; |
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public: |
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// Global lock for everyone who needs to use atomic_compare_and_exchange |
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// or atomic_increment -- should probably use more locks for more |
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// scalability -- for instance one for each eden space or group of. |
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// Address of the lock for atomic_compare_and_exchange. |
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static int* atomic_memory_operation_lock_addr() { return &_atomic_memory_operation_lock; } |
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// Accessor and mutator for _atomic_memory_operation_lock. |
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static int atomic_memory_operation_lock() { return _atomic_memory_operation_lock; } |
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static void set_atomic_memory_operation_lock(int value) { _atomic_memory_operation_lock = value; } |
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static address partial_subtype_check() { return _partial_subtype_check; } |
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static void generate_load_absolute_address(MacroAssembler* masm, Register table, address table_addr, uint64_t table_contents); |
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static void generate_load_crc_table_addr(MacroAssembler* masm, Register table); |
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static void generate_load_crc32c_table_addr(MacroAssembler* masm, Register table); |
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// Comapct string intrinsics: Translate table for string inflate intrinsic. Used by trot instruction. |
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static void generate_load_trot_table_addr(MacroAssembler* masm, Register table); |
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}; |
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#endif // CPU_S390_STUBROUTINES_S390_HPP |