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1 // Copyright 2008 Google Inc. All Rights Reserved.
2 //
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions are
5 // met:
6 //
7 //     * Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 //     * Redistributions in binary form must reproduce the above
10 // copyright notice, this list of conditions and the following disclaimer
11 // in the documentation and/or other materials provided with the
12 // distribution.
13 //     * Neither the name of Google Inc. nor the names of its
14 // contributors may be used to endorse or promote products derived from
15 // this software without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 
29 
30 #ifndef COMMON_DWARF_LINE_STATE_MACHINE_H__
31 #define COMMON_DWARF_LINE_STATE_MACHINE_H__
32 
33 namespace dwarf2reader {
34 
35 // This is the format of a DWARF2/3 line state machine that we process
36 // opcodes using.  There is no need for anything outside the lineinfo
37 // processor to know how this works.
38 struct LineStateMachine {
ResetLineStateMachine39   void Reset(bool default_is_stmt) {
40     file_num = 1;
41     address = 0;
42     line_num = 1;
43     column_num = 0;
44     is_stmt = default_is_stmt;
45     basic_block = false;
46     end_sequence = false;
47   }
48 
49   uint32 file_num;
50   uint64 address;
51   uint32 line_num;
52   uint32 column_num;
53   bool is_stmt;  // stmt means statement.
54   bool basic_block;
55   bool end_sequence;
56 };
57 
58 }  // namespace dwarf2reader
59 
60 
61 #endif  // COMMON_DWARF_LINE_STATE_MACHINE_H__
62