1 /*
2 * Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2018, 2021, Red Hat, Inc. All rights reserved.
4 * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 *
7 * This code is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 only, as
9 * published by the Free Software Foundation.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 *
25 */
26
27 #ifndef CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
28 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
29
30 #include "asm/macroAssembler.hpp"
31 #include "gc/shared/barrierSetAssembler.hpp"
32 #include "gc/shenandoah/shenandoahBarrierSet.hpp"
33
34 #ifdef COMPILER1
35 class LIR_Assembler;
36 class ShenandoahPreBarrierStub;
37 class ShenandoahLoadReferenceBarrierStub;
38 class StubAssembler;
39 #endif
40 class StubCodeGenerator;
41
42 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
43 private:
44
45 void satb_barrier(MacroAssembler* masm,
46 Register obj,
47 Register pre_val,
48 Register tmp);
49
50 void card_barrier(MacroAssembler* masm, Register obj);
51
52 void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
53 Register addr, Register count,
54 Register tmp);
55
56 public:
57 #ifdef COMPILER1
58 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
59 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
60 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
61 void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm, DecoratorSet decorators);
62 #endif
63
64 void load_reference_barrier(MacroAssembler* masm, Register dst, Address src, DecoratorSet decorators);
65
66 void cmpxchg_oop(MacroAssembler* masm,
67 Register res, Address addr, Register oldval, Register newval,
68 bool exchange, Register tmp1, Register tmp2);
69 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
70 Register src, Register dst, Register count);
71 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
72 Register src, Register dst, Register count);
73 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
74 Register dst, Address src, Register tmp1);
75 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
76 Address dst, Register val, Register tmp1, Register tmp2, Register tmp3);
77 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
78 Register obj, Register tmp, Label& slowpath);
79 virtual void try_peek_weak_handle_in_nmethod(MacroAssembler* masm, Register weak_handle, Register obj, Label& slowpath);
80 };
81
82 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP