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 class LIR_Assembler; 31 class ShenandoahPreBarrierStub; 32 class ShenandoahWriteBarrierStub; 33 class StubAssembler; 34 class StubCodeGenerator; 35 #endif 36 37 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler { 38 private: 39 40 static address _shenandoah_wb; 41 static address _shenandoah_wb_C; 42 43 void satb_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_pre(MacroAssembler* masm, 51 Register obj, 52 Register pre_val, 53 Register thread, 54 Register tmp, 55 bool tosca_live, 56 bool expand_call); 57 58 void read_barrier(MacroAssembler* masm, Register dst); 59 void read_barrier_impl(MacroAssembler* masm, Register dst); 60 void read_barrier_not_null(MacroAssembler* masm, Register dst); 61 void read_barrier_not_null_impl(MacroAssembler* masm, Register dst); 62 void write_barrier(MacroAssembler* masm, Register dst); 63 void write_barrier_impl(MacroAssembler* masm, Register dst); 64 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp); 65 void asm_acmp_barrier(MacroAssembler* masm, Register op1, Register op2); 66 67 address generate_shenandoah_wb(StubCodeGenerator* cgen, bool c_abi, bool do_cset_test); 68 69 public: 70 static address shenandoah_wb(); 71 static address shenandoah_wb_C(); 72 73 static bool is_shenandoah_wb_C_call(address call); 74 75 #ifdef COMPILER1 76 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub); 77 void gen_write_barrier_stub(LIR_Assembler* ce, ShenandoahWriteBarrierStub* stub); 78 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm); 79 #endif 80 81 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 82 Register addr, Register count, RegSet saved_regs); 83 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop, 84 Register start, Register end, Register tmp, RegSet saved_regs); 85 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 86 Register dst, Address src, Register tmp1, Register tmp_thread); 87 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 88 Address dst, Register val, Register tmp1, Register tmp2); 89 virtual void obj_equals(MacroAssembler* masm, Register src1, Register src2); 90 virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj); 91 virtual void tlab_allocate(MacroAssembler* masm, Register obj, 92 Register var_size_in_bytes, 93 int con_size_in_bytes, 94 Register t1, 95 Register t2, 96 Label& slow_case); 97 98 void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val, 99 bool acquire, bool release, bool weak, bool encode, 100 Register tmp1, Register tmp2, Register tmp3 = rscratch2, 101 Register result = noreg); 102 103 virtual bool needs_explicit_null_check(intptr_t offset); 104 105 virtual void barrier_stubs_init(); 106 }; 107 108 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP