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comparison src/cpu/zero/vm/entryFrame_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 f9271ff9d324
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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 // | parameter n-1 | low addresses
29 // | ... |
30 // | parameter 0 |
31 // | call_wrapper |
32 // | frame_type |
33 // | next_frame | high addresses
34 // +--------------------+ ------------------
35 // | ... |
36
37 class EntryFrame : public ZeroFrame {
38 private:
39 EntryFrame() : ZeroFrame() {
40 ShouldNotCallThis();
41 }
42
43 protected:
44 enum Layout {
45 call_wrapper_off = jf_header_words,
46 header_words
47 };
48
49 public:
50 static EntryFrame *build(ZeroStack* stack,
51 const intptr_t* parameters,
52 int parameter_words,
53 JavaCallWrapper* call_wrapper);
54 public:
55 JavaCallWrapper *call_wrapper() const {
56 return (JavaCallWrapper *) value_of_word(call_wrapper_off);
57 }
58
59 public:
60 void identify_word(int frame_index,
61 int offset,
62 char* fieldbuf,
63 char* valuebuf,
64 int buflen) const;
65 };