1 /* 2 * Copyright (c) 2018, 2019, 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_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP 26 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP 27 28 #include "asm/macroAssembler.hpp" 29 #include "gc/shared/barrierSetAssembler.hpp" 30 #ifdef COMPILER1 31 class LIR_Assembler; 32 class ShenandoahPreBarrierStub; 33 class ShenandoahLoadReferenceBarrierStub; 34 class StubAssembler; 35 #endif 36 class StubCodeGenerator; 37 38 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler { 39 private: 40 41 static address _shenandoah_lrb; 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 load_reference_barrier_not_null(MacroAssembler* masm, Register dst, Address src); 60 61 void storeval_barrier_impl(MacroAssembler* masm, Register dst, Register tmp); 62 63 address generate_shenandoah_lrb(StubCodeGenerator* cgen); 64 65 public: 66 static address shenandoah_lrb(); 67 68 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp); 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 void load_reference_barrier(MacroAssembler* masm, Register dst, Address src); 77 void load_reference_barrier_native(MacroAssembler* masm, Register dst, Address src); 78 79 void cmpxchg_oop(MacroAssembler* masm, 80 Register res, Address addr, Register oldval, Register newval, 81 bool exchange, Register tmp1, Register tmp2); 82 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 83 Register src, Register dst, Register count); 84 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 85 Register dst, Address src, Register tmp1, Register tmp_thread); 86 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type, 87 Address dst, Register val, Register tmp1, Register tmp2); 88 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env, 89 Register obj, Register tmp, Label& slowpath); 90 virtual void barrier_stubs_init(); 91 92 }; 93 94 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP