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GitHub Repository: PojavLauncherTeam/mobile
 Path: blob/master/src/hotspot/cpu/arm/gc/shared/modRefBarrierSetAssembler_arm.hpp
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/*

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 * Copyright (c) 2018, Oracle and/or its affiliates. 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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#ifndef CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP

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#define CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP

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#include "asm/macroAssembler.hpp"

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#include "gc/shared/barrierSetAssembler.hpp"

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// The ModRefBarrierSetAssembler filters away accesses on BasicTypes other

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// than T_OBJECT/T_ARRAY (oops). The oop accesses call one of the protected

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// accesses, which are overridden in the concrete BarrierSetAssembler.

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class ModRefBarrierSetAssembler: public BarrierSetAssembler {

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protected:

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  virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators,

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                                               Register addr, Register count, int callee_saved_regs) {}

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  virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,

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                                                Register addr, Register count, Register tmp) {}

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  virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,

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                            Address obj, Register val, Register tmp1, Register tmp2, Register tmp3, bool is_null) = 0;

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public:

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  virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,

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                                  Register addr, Register count, int callee_saved_regs);

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  virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,

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                                  Register addr, Register count, Register tmp);

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  virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,

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                        Address obj, Register val, Register tmp1, Register tmp2, Register tmp3, bool is_null);

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};

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#endif // CPU_ARM_GC_SHARED_MODREFBARRIERSETASSEMBLER_ARM_HPP

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