1 /* 2 * Copyright (c) 2018, Red Hat, Inc. and/or its affiliates. 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 #include "c1/c1_LIRAssembler.hpp" 31 #include "gc/shenandoah/c1/shenandoahBarrierSetC1.hpp" 32 #endif 33 34 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler { 35 private: 36 void satb_write_barrier_pre(MacroAssembler* masm, 37 Register obj, 38 Register pre_val, 39 Register thread, 40 Register tmp, 41 bool tosca_live, 42 bool expand_call); 43 void shenandoah_write_barrier_pre(MacroAssembler* masm, 44 Register obj, 45 Register pre_val, 46 Register thread, 47 Register tmp, 48 bool tosca_live, 49 bool expand_call); 50 void shenandoah_write_barrier_post(MacroAssembler* masm, 51 Register store_addr, 52 Register new_val, 53 Register thread, 54 Register tmp, 55 Register tmp2); 56 57 void read_barrier(MacroAssembler* masm, Register dst); 58 void read_barrier_impl(MacroAssembler* masm, Register dst); 59 void read_barrier_not_null(MacroAssembler* masm, Register dst); 60 void read_barrier_not_null_impl(MacroAssembler* masm, Register dst); 61 void write_barrier(MacroAssembler* masm, Register dst); 62 void write_barrier_impl(MacroAssembler* masm, Register dst); 63 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp); 64 void asm_acmp_barrier(MacroAssembler* masm, Register op1, Register op2); 65 66 public: 67 #ifdef COMPILER1 68 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub); 69 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm); 70 #endif 71 72 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 73 Register addr, Register count, RegSet saved_regs); 74 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 75 Register start, Register end, Register tmp, RegSet saved_regs); 76 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 77 Register dst, Address src, Register tmp1, Register tmp_thread); 78 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 79 Address dst, Register val, Register tmp1, Register tmp2); 80 virtual void obj_equals(MacroAssembler* masm, DecoratorSet decorators, Register src1, Register src2); 81 virtual void resolve_for_read(MacroAssembler* masm, DecoratorSet decorators, Register obj); 82 virtual void resolve_for_write(MacroAssembler* masm, DecoratorSet decorators, Register obj); 83 84 virtual void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val, 85 bool acquire, bool release, bool weak, bool encode, 86 Register tmp1, Register tmp2, Register tmp3, 87 Register result); 88 }; 89 90 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP