1 /* 2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 * 22 */ 23 24 #ifndef CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP 25 #define CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP 26 27 #include "asm/macroAssembler.hpp" 28 #include "gc/shared/barrierSetAssembler.hpp" 29 #ifdef COMPILER1 30 class LIR_Assembler; 31 class ShenandoahPreBarrierStub; 32 class ShenandoahLoadReferenceBarrierStub; 33 class StubAssembler; 34 #endif 35 class StubCodeGenerator; 36 37 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler { 38 private: 39 40 static address _shenandoah_lrb; 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); 60 void load_reference_barrier_not_null(MacroAssembler* masm, Register dst, Address load_addr); 61 62 address generate_shenandoah_lrb(StubCodeGenerator* cgen); 63 64 public: 65 static address shenandoah_lrb(); 66 67 void iu_barrier(MacroAssembler* masm, Register dst, Register tmp); 68 69 #ifdef COMPILER1 70 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub); 71 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub); 72 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm); 73 void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm); 74 #endif 75 76 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 77 Register src, Register dst, Register count, RegSet saved_regs); 78 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 79 Register dst, Address src, Register tmp1, Register tmp_thread); 80 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 81 Address dst, Register val, Register tmp1, Register tmp2); 82 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env, 83 Register obj, Register tmp, Label& slowpath); 84 virtual void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val, 85 bool acquire, bool release, bool is_cae, Register result); 86 87 virtual void barrier_stubs_init(); 88 }; 89 90 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP 91