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_SHENANDOAHBASEBARRIERSETASSEMBLER_X86_HPP
25 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBASEBARRIERSETASSEMBLER_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 ShenandoahBaseBarrierSetAssembler: 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 public:
74 static address shenandoah_wb();
75 static address shenandoah_wb_C();
76
77 static bool is_shenandoah_wb_C_call(address call);
78
79 #ifdef COMPILER1
80 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
81 void gen_write_barrier_stub(LIR_Assembler* ce, ShenandoahWriteBarrierStub* stub);
82 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
83 #endif
84
85 void cmpxchg_oop(MacroAssembler* masm,
86 Register res, Address addr, Register oldval, Register newval,
87 bool exchange, bool encode, Register tmp1, Register tmp2);
88 virtual void xchg_oop(MacroAssembler* masm, DecoratorSet decorators,
89 Register obj, Address addr, Register tmp);
90
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_SHENANDOAHBASEBARRIERSETASSEMBLER_X86_HPP