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comparison src/cpu/x86/vm/interpreterRT_x86.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 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
27 class 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 };