interpreterRT_x86.hpp revision 0:a61af66fc99e 
1/*
2 * Copyright 1998-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25// native method calls
26
27class SignatureHandlerGenerator: public NativeSignatureIterator {
28 private:
29  MacroAssembler* _masm;
30#ifdef AMD64
31#ifdef _WIN64
32  unsigned int _num_args;
33#else
34  unsigned int _num_fp_args;
35  unsigned int _num_int_args;
36#endif // _WIN64
37  int _stack_offset;
38#else
39  void move(int from_offset, int to_offset);
40  void box(int from_offset, int to_offset);
41#endif // AMD64
42
43  void pass_int();
44  void pass_long();
45  void pass_float();
46#ifdef AMD64
47  void pass_double();
48#endif // AMD64
49  void pass_object();
50
51 public:
52  // Creation
53  SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
54    _masm = new MacroAssembler(buffer);
55#ifdef AMD64
56#ifdef _WIN64
57    _num_args = (method->is_static() ? 1 : 0);
58    _stack_offset = (Argument::n_int_register_parameters_c+1)* wordSize; // don't overwrite return address
59#else
60    _num_int_args = (method->is_static() ? 1 : 0);
61    _num_fp_args = 0;
62    _stack_offset = wordSize; // don't overwrite return address
63#endif // _WIN64
64#endif // AMD64
65  }
66
67  // Code generation
68  void generate(uint64_t fingerprint);
69
70  // Code generation support
71  static Register from();
72  static Register to();
73  static Register temp();
74};
75