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);
51
52 virtual void value_copy(MacroAssembler* masm, DecoratorSet decorators,
53 Register src, Register dst, Register value_klass);
54
55 // Support for jniFastGetField to try resolving a jobject/jweak in native
56 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
57 Register obj, Register tmp, Label& slowpath);
58
59 virtual void tlab_allocate(MacroAssembler* masm,
60 Register thread, Register obj,
61 Register var_size_in_bytes,
62 int con_size_in_bytes,
63 Register t1, Register t2,
64 Label& slow_case);
65
66 virtual void barrier_stubs_init() {}
67
68 virtual void nmethod_entry_barrier(MacroAssembler* masm, Label* slow_path, Label* continuation);
69 virtual void c2i_entry_barrier(MacroAssembler* masm);
70 };
71
72 #endif // CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP