1/*
2 * Copyright (c) 2008, 2017, 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_ARM_VM_INTERPRETERRT_ARM_HPP
26#define CPU_ARM_VM_INTERPRETERRT_ARM_HPP
27
28#include "memory/allocation.hpp"
29
30// native method calls
31
32class SignatureHandlerGenerator: public NativeSignatureIterator {
33 private:
34  MacroAssembler* _masm;
35  int _abi_offset;
36  int  _ireg;
37
38#ifdef __ABI_HARD__
39#ifdef AARCH64
40  int _freg;
41#else
42  int _fp_slot; // number of FPR's with arguments loaded
43  int _single_fpr_slot;
44#endif
45#endif
46
47  void move(int from_offset, int to_offset);
48  void box(int from_offset, int to_offset);
49
50  void pass_int();
51  void pass_long();
52  void pass_float();
53  void pass_object();
54#ifdef __ABI_HARD__
55  void pass_double();
56#endif
57 public:
58  // Creation
59  SignatureHandlerGenerator(const methodHandle& method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
60    _masm = new MacroAssembler(buffer);
61    _abi_offset = 0;
62    _ireg = is_static() ? 2 : 1;
63#ifdef __ABI_HARD__
64#ifdef AARCH64
65    _freg = 0;
66#else
67    _fp_slot = 0;
68    _single_fpr_slot = 0;
69#endif
70#endif
71  }
72
73  // Code generation
74  void generate(uint64_t fingerprint);
75
76};
77
78#ifndef AARCH64
79// ARM provides a normalized fingerprint for native calls (to increase
80// sharing). See normalize_fast_native_fingerprint
81#define SHARING_FAST_NATIVE_FINGERPRINTS
82#endif
83
84#endif // CPU_ARM_VM_INTERPRETERRT_ARM_HPP
85