1 /*
2 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. 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_SHARED_BARRIERSETASSEMBLER_X86_HPP
26 #define CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP
27
28 #include "asm/macroAssembler.hpp"
29 #include "memory/allocation.hpp"
30 #include "oops/access.hpp"
31
32 class InterpreterMacroAssembler;
33
34 class BarrierSetAssembler: public CHeapObj<mtGC> {
35 private:
36 void incr_allocated_bytes(MacroAssembler* masm, Register thread,
37 Register var_size_in_bytes,
38 int con_size_in_bytes,
39 Register t1);
40
41 public:
42 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
43 Register src, Register dst, Register count) {}
44 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
45 Register src, Register dst, Register count) {}
46
47 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
48 Register dst, Address src, Register tmp1, Register tmp_thread);
49 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
50 Address dst, Register val, Register tmp1, Register tmp2, Register tmp3 = noreg);
51
52 virtual void value_copy(MacroAssembler* masm, DecoratorSet decorators,
53 Register src, Register dst, Register value_klass);
54
55 #ifndef _LP64
56 virtual void obj_equals(MacroAssembler* masm,
57 Address obj1, jobject obj2);
58 virtual void obj_equals(MacroAssembler* masm,
59 Register obj1, jobject obj2);
60 #endif
61
62 virtual void obj_equals(MacroAssembler* masm,
63 Register obj1, Register obj2);
64 virtual void obj_equals(MacroAssembler* masm,
65 Register obj1, Address obj2);
66
67 virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj) {
68 // Default implementation does not need to do anything.
69 }
70
71 // Support for jniFastGetField to try resolving a jobject/jweak in native
72 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
73 Register obj, Register tmp, Label& slowpath);
74
75 virtual void tlab_allocate(MacroAssembler* masm,
76 Register thread, Register obj,
77 Register var_size_in_bytes,
78 int con_size_in_bytes,
79 Register t1, Register t2,
80 Label& slow_case);
81 virtual void eden_allocate(MacroAssembler* masm,
82 Register thread, Register obj,
83 Register var_size_in_bytes,
84 int con_size_in_bytes,
85 Register t1,
86 Label& slow_case);
87
88 virtual void barrier_stubs_init() {}
89
90 virtual void nmethod_entry_barrier(MacroAssembler* masm);
91 virtual void c2i_entry_barrier(MacroAssembler* masm);
92 };
93
94 #endif // CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP