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