1 // Copyright 2008 Google LLC 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 LLC 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 #include <stdint.h> 34 35 namespace google_breakpad { 36 37 // This is the format of a DWARF2/3 line state machine that we process 38 // opcodes using. There is no need for anything outside the lineinfo 39 // processor to know how this works. 40 struct LineStateMachine { ResetLineStateMachine41 void Reset(bool default_is_stmt) { 42 file_num = 1; 43 address = 0; 44 line_num = 1; 45 column_num = 0; 46 is_stmt = default_is_stmt; 47 basic_block = false; 48 end_sequence = false; 49 } 50 51 uint32_t file_num; 52 uint64_t address; 53 uint32_t line_num; 54 uint32_t column_num; 55 bool is_stmt; // stmt means statement. 56 bool basic_block; 57 bool end_sequence; 58 }; 59 60 } // namespace google_breakpad 61 62 63 #endif // COMMON_DWARF_LINE_STATE_MACHINE_H__ 64