1/*
2 * Copyright (c) 1998, 2010, 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_VM_INTERPRETERRT_X86_HPP
26#define CPU_X86_VM_INTERPRETERRT_X86_HPP
27
28#include "memory/allocation.hpp"
29
30// native method calls
31
32class SignatureHandlerGenerator: public NativeSignatureIterator {
33 private:
34  MacroAssembler* _masm;
35#ifdef AMD64
36#ifdef _WIN64
37  unsigned int _num_args;
38#else
39  unsigned int _num_fp_args;
40  unsigned int _num_int_args;
41#endif // _WIN64
42  int _stack_offset;
43#else
44  void move(int from_offset, int to_offset);
45  void box(int from_offset, int to_offset);
46#endif // AMD64
47
48  void pass_int();
49  void pass_long();
50  void pass_float();
51#ifdef AMD64
52  void pass_double();
53#endif // AMD64
54  void pass_object();
55
56 public:
57  // Creation
58  SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
59    _masm = new MacroAssembler(buffer);
60#ifdef AMD64
61#ifdef _WIN64
62    _num_args = (method->is_static() ? 1 : 0);
63    _stack_offset = (Argument::n_int_register_parameters_c+1)* wordSize; // don't overwrite return address
64#else
65    _num_int_args = (method->is_static() ? 1 : 0);
66    _num_fp_args = 0;
67    _stack_offset = wordSize; // don't overwrite return address
68#endif // _WIN64
69#endif // AMD64
70  }
71
72  // Code generation
73  void generate(uint64_t fingerprint);
74
75  // Code generation support
76  static Register from();
77  static Register to();
78  static Register temp();
79};
80
81#endif // CPU_X86_VM_INTERPRETERRT_X86_HPP
82