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_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP 25 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_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 51 void shenandoah_write_barrier_pre(MacroAssembler* masm, 52 Register obj, 53 Register pre_val, 54 Register thread, 55 Register tmp, 56 bool tosca_live, 57 bool expand_call); 58 59 void read_barrier(MacroAssembler* masm, Register dst); 60 void read_barrier_impl(MacroAssembler* masm, Register dst); 61 62 void read_barrier_not_null(MacroAssembler* masm, Register dst); 63 void read_barrier_not_null_impl(MacroAssembler* masm, Register dst); 64 65 void write_barrier(MacroAssembler* masm, Register dst); 66 void write_barrier_impl(MacroAssembler* masm, Register dst); 67 68 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp); 69 void storeval_barrier_impl(MacroAssembler* masm, Register dst, Register tmp); 70 71 address generate_shenandoah_wb(StubCodeGenerator* cgen, bool c_abi, bool do_cset_test); 72 73 void save_vector_registers(MacroAssembler* masm); 74 void restore_vector_registers(MacroAssembler* masm); 75 76 public: 77 static address shenandoah_wb(); 78 static address shenandoah_wb_C(); 79 80 static bool is_shenandoah_wb_C_call(address call); 81 82 #ifdef COMPILER1 83 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub); 84 void gen_write_barrier_stub(LIR_Assembler* ce, ShenandoahWriteBarrierStub* stub); 85 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm); 86 #endif 87 88 void cmpxchg_oop(MacroAssembler* masm, 89 Register res, Address addr, Register oldval, Register newval, 90 bool exchange, bool encode, Register tmp1, Register tmp2); 91 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 92 Register src, Register dst, Register count); 93 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 94 Register src, Register dst, Register count); 95 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 96 Register dst, Address src, Register tmp1, Register tmp_thread); 97 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 98 Address dst, Register val, Register tmp1, Register tmp2); 99 100 #ifndef _LP64 101 virtual void obj_equals(MacroAssembler* masm, 102 Address obj1, jobject obj2); 103 virtual void obj_equals(MacroAssembler* masm, 104 Register obj1, jobject obj2); 105 #endif 106 107 virtual void obj_equals(MacroAssembler* masm, Register src1, Register src2); 108 virtual void obj_equals(MacroAssembler* masm, Register src1, Address src2); 109 110 virtual void tlab_allocate(MacroAssembler* masm, 111 Register thread, Register obj, 112 Register var_size_in_bytes, 113 int con_size_in_bytes, 114 Register t1, Register t2, 115 Label& slow_case); 116 117 virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj); 118 119 virtual void barrier_stubs_init(); 120 121 }; 122 123 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP