1 /* 2 * Copyright (c) 2018, 2021, Red Hat, Inc. 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_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP 26 #define CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "gc/shared/barrierSetAssembler.hpp" 30 #include "gc/shenandoah/shenandoahBarrierSet.hpp" 31 #ifdef COMPILER1 32 class LIR_Assembler; 33 class ShenandoahPreBarrierStub; 34 class ShenandoahLoadReferenceBarrierStub; 35 class StubAssembler; 36 #endif 37 class StubCodeGenerator; 38 39 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler { 40 private: 41 42 void satb_write_barrier_pre(MacroAssembler* masm, 43 Register obj, 44 Register pre_val, 45 Register thread, 46 Register tmp, 47 bool tosca_live, 48 bool expand_call); 49 void shenandoah_write_barrier_pre(MacroAssembler* masm, 50 Register obj, 51 Register pre_val, 52 Register thread, 53 Register tmp, 54 bool tosca_live, 55 bool expand_call); 56 57 void resolve_forward_pointer(MacroAssembler* masm, Register dst, Register tmp = noreg); 58 void resolve_forward_pointer_not_null(MacroAssembler* masm, Register dst, Register tmp = noreg); 59 void load_reference_barrier(MacroAssembler* masm, Register dst, Address load_addr, DecoratorSet decorators); 60 61 public: 62 63 void iu_barrier(MacroAssembler* masm, Register dst, Register tmp); 64 65 #ifdef COMPILER1 66 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub); 67 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub); 68 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm); 69 void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm, DecoratorSet decorators); 70 #endif 71 72 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 73 Register src, Register dst, Register count, RegSet saved_regs); 74 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 75 Register dst, Address src, Register tmp1, Register tmp_thread); 76 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 77 Address dst, Register val, Register tmp1, Register tmp2); 78 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env, 79 Register obj, Register tmp, Label& slowpath); 80 void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val, 81 bool acquire, bool release, bool is_cae, Register result); 82 }; 83 84 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP 85