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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef _LIBUNWINDSTACK_DWARF_STRUCTS_H
     18 #define _LIBUNWINDSTACK_DWARF_STRUCTS_H
     19 
     20 #include <stdint.h>
     21 
     22 #include <vector>
     23 
     24 namespace unwindstack {
     25 
     26 struct DwarfCie {
     27   uint8_t version = 0;
     28   uint8_t fde_address_encoding = 0;
     29   uint8_t lsda_encoding = 0;
     30   uint8_t segment_size = 0;
     31   std::vector<char> augmentation_string;
     32   uint64_t personality_handler = 0;
     33   uint64_t cfa_instructions_offset = 0;
     34   uint64_t cfa_instructions_end = 0;
     35   uint64_t code_alignment_factor = 0;
     36   int64_t data_alignment_factor = 0;
     37   uint64_t return_address_register = 0;
     38 };
     39 
     40 struct DwarfFde {
     41   uint64_t cie_offset = 0;
     42   uint64_t cfa_instructions_offset = 0;
     43   uint64_t cfa_instructions_end = 0;
     44   uint64_t pc_start = 0;
     45   uint64_t pc_end = 0;
     46   uint64_t lsda_address = 0;
     47   const DwarfCie* cie = nullptr;
     48 };
     49 
     50 constexpr uint16_t CFA_REG = static_cast<uint16_t>(-1);
     51 
     52 }  // namespace unwindstack
     53 
     54 #endif  // _LIBUNWINDSTACK_DWARF_STRUCTS_H
     55