1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_ARM_GC_G1_G1BARRIERSETASSEMBLER_ARM_HPP 26 #define CPU_ARM_GC_G1_G1BARRIERSETASSEMBLER_ARM_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "gc/shared/modRefBarrierSetAssembler.hpp" 30 #include "utilities/macros.hpp" 31 32 class LIR_Assembler; 33 class StubAssembler; 34 class G1PreBarrierStub; 35 class G1PostBarrierStub; 36 37 class G1BarrierSetAssembler: public ModRefBarrierSetAssembler { 38 protected: 39 void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators, 40 Register addr, Register count, int callee_saved_regs); 41 void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators, 42 Register addr, Register count, Register tmp); 43 44 void g1_write_barrier_pre(MacroAssembler* masm, 45 Register store_addr, 46 Register new_val, 47 Register pre_val, 48 Register tmp1, 49 Register tmp2); 50 51 void g1_write_barrier_post(MacroAssembler* masm, 52 Register store_addr, 53 Register new_val, 54 Register tmp1, 55 Register tmp2, 56 Register tmp3); 57 58 virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 59 Address obj, Register new_val, Register tmp1, Register tmp2, Register tmp3, bool is_null); 60 61 public: 62 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 63 Register dst, Address src, Register tmp1, Register tmp2, Register tmp3); 64 65 #ifdef COMPILER1 66 public: 67 void gen_pre_barrier_stub(LIR_Assembler* ce, G1PreBarrierStub* stub); 68 void gen_post_barrier_stub(LIR_Assembler* ce, G1PostBarrierStub* stub); 69 70 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm); 71 void generate_c1_post_barrier_runtime_stub(StubAssembler* sasm); 72 #endif 73 }; 74 75 #endif // CPU_ARM_GC_G1_G1BARRIERSETASSEMBLER_ARM_HPP