Mercurial > hg > truffle
comparison src/share/vm/shark/sharkStateScanner.hpp @ 1692:d2ede61b7a12
6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
author | twisti |
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date | Wed, 11 Aug 2010 05:51:21 -0700 |
parents | |
children | f95d63e2154a |
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1691:4a665be40fd3 | 1692:d2ede61b7a12 |
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1 /* | |
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 2008, 2009 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
21 * or visit www.oracle.com if you need additional information or have any | |
22 * questions. | |
23 * | |
24 */ | |
25 | |
26 class SharkState; | |
27 | |
28 class SharkStateScanner : public SharkTargetInvariants { | |
29 protected: | |
30 SharkStateScanner(SharkFunction* function) | |
31 : SharkTargetInvariants(function), _stack(function->stack()) {} | |
32 | |
33 private: | |
34 SharkStack* _stack; | |
35 | |
36 protected: | |
37 SharkStack* stack() const { | |
38 return _stack; | |
39 } | |
40 | |
41 // Scan the frame | |
42 public: | |
43 void scan(SharkState* state); | |
44 | |
45 // Callbacks | |
46 // Note that the offsets supplied to the various process_* callbacks | |
47 // are specified in wordSize words from the frame's unextended_sp. | |
48 protected: | |
49 virtual void start_frame() {} | |
50 | |
51 virtual void start_stack(int stack_depth) {} | |
52 virtual void process_stack_slot(int index, SharkValue** value, int offset) {} | |
53 virtual void end_stack() {} | |
54 | |
55 virtual void start_monitors(int num_monitors) {} | |
56 virtual void process_monitor(int index, int box_offset, int obj_offset) {} | |
57 virtual void end_monitors() {} | |
58 | |
59 virtual void start_frame_header() {} | |
60 virtual void process_oop_tmp_slot(llvm::Value** value, int offset) {} | |
61 virtual void process_method_slot(llvm::Value** value, int offset) {} | |
62 virtual void process_pc_slot(int offset) {} | |
63 virtual void end_frame_header() {} | |
64 | |
65 virtual void start_locals() {} | |
66 virtual void process_local_slot(int index, SharkValue** value, int offset) {} | |
67 virtual void end_locals() {} | |
68 | |
69 virtual void end_frame() {} | |
70 | |
71 // Integrity checks | |
72 private: | |
73 void stack_integrity_checks(SharkState* state) PRODUCT_RETURN; | |
74 void locals_integrity_checks(SharkState* state) PRODUCT_RETURN; | |
75 }; |