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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,
     22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     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 {
     39   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