1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2018, 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_GC_SHARED_MODREFBARRIERSETASSEMBLER_PPC_HPP 27 #define CPU_PPC_GC_SHARED_MODREFBARRIERSETASSEMBLER_PPC_HPP 28 29 #include "asm/macroAssembler.hpp" 30 #include "gc/shared/barrierSetAssembler.hpp" 31 32 // The ModRefBarrierSetAssembler filters away accesses on BasicTypes other 33 // than T_OBJECT/T_ARRAY (oops). The oop accesses call one of the protected 34 // accesses, which are overridden in the concrete BarrierSetAssembler. 35 36 class ModRefBarrierSetAssembler: public BarrierSetAssembler { 37 protected: gen_write_ref_array_pre_barrier(MacroAssembler * masm,DecoratorSet decorators,Register from,Register to,Register count,Register preserve1,Register preserve2)38 virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators, Register from, Register to, Register count, 39 Register preserve1, Register preserve2) {} gen_write_ref_array_post_barrier(MacroAssembler * masm,DecoratorSet decorators,Register addr,Register count,Register preserve)40 virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count, Register preserve) {} 41 42 virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 43 Register base, RegisterOrConstant ind_or_offs, Register val, 44 Register tmp1, Register tmp2, Register tmp3, bool needs_frame) = 0; 45 public: 46 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 47 Register src, Register dst, Register count, Register preserve1, Register preserve2); 48 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 49 Register dst, Register count, Register preserve); 50 51 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 52 Register base, RegisterOrConstant ind_or_offs, Register val, 53 Register tmp1, Register tmp2, Register tmp3, bool needs_frame); 54 }; 55 56 #endif // CPU_PPC_GC_SHARED_MODREFBARRIERSETASSEMBLER_PPC_HPP 57