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comparison src/cpu/zero/vm/sharkFrame_zero.hpp @ 1010:354d3184f6b2

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6890308: integrate zero assembler hotspot changes Reviewed-by: never Contributed-by: gbenson@redhat.com
author never
date Tue, 13 Oct 2009 12:04:21 -0700
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children 8e7adf982378
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1009:03b336640699 1010:354d3184f6b2
1 /*
2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
3 * Copyright 2008 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 *
24 */
25
26 // | ... |
27 // +--------------------+ ------------------
28 // | stack slot n-1 | low addresses
29 // | ... |
30 // | stack slot 0 |
31 // | monitor m-1 |
32 // | ... |
33 // | monitor 0 |
34 // | oop_tmp |
35 // | method |
36 // | unextended_sp |
37 // | pc |
38 // | frame_type |
39 // | next_frame | high addresses
40 // +--------------------+ ------------------
41 // | ... |
42
43 class SharkFrame : public ZeroFrame {
44 friend class SharkFunction;
45
46 private:
47 SharkFrame() : ZeroFrame() {
48 ShouldNotCallThis();
49 }
50
51 protected:
52 enum Layout {
53 pc_off = jf_header_words,
54 unextended_sp_off,
55 method_off,
56 oop_tmp_off,
57 header_words
58 };
59
60 public:
61 address pc() const {
62 return (address) value_of_word(pc_off);
63 }
64
65 intptr_t* unextended_sp() const {
66 return (intptr_t *) value_of_word(unextended_sp_off);
67 }
68
69 methodOop method() const {
70 return (methodOop) value_of_word(method_off);
71 }
72
73 public:
74 void identify_word(int frame_index,
75 int offset,
76 char* fieldbuf,
77 char* valuebuf,
78 int buflen) const;
79 };