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_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP
26 #define CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_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 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 resolve_forward_pointer(MacroAssembler* masm, Register dst, Register tmp = noreg);
59 void resolve_forward_pointer_not_null(MacroAssembler* masm, Register dst, Register tmp = noreg);
60 void load_reference_barrier(MacroAssembler* masm, Register dst, Address load_addr);
61 void load_reference_barrier_not_null(MacroAssembler* masm, Register dst, Address load_addr);
62 void load_reference_barrier_native(MacroAssembler* masm, Register dst, Address load_addr);
63
64 address generate_shenandoah_lrb(StubCodeGenerator* cgen);
65
66 public:
67 static address shenandoah_lrb();
68
69 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
70
71 #ifdef COMPILER1
72 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
73 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
74 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
75 void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm);
76 #endif
77
78 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
79 Register src, Register dst, Register count, RegSet saved_regs);
80 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
81 Register dst, Address src, Register tmp1, Register tmp_thread);
82 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
83 Address dst, Register val, Register tmp1, Register tmp2);
84 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
85 Register obj, Register tmp, Label& slowpath);
86 void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val,
87 bool acquire, bool release, bool weak, bool is_cae, Register result);
88
89 virtual void barrier_stubs_init();
90 };
91
92 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP