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1 /*
2  * Copyright (C) 2017 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_DEBUG_FRAME_H
18 #define _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H
19 
20 #include <stdint.h>
21 
22 #include <vector>
23 
24 #include <unwindstack/DwarfSection.h>
25 
26 namespace unwindstack {
27 
28 template <typename AddressType>
29 class DwarfDebugFrame : public DwarfSectionImpl<AddressType> {
30  public:
DwarfDebugFrame(Memory * memory)31   DwarfDebugFrame(Memory* memory) : DwarfSectionImpl<AddressType>(memory) {
32     this->cie32_value_ = static_cast<uint32_t>(-1);
33     this->cie64_value_ = static_cast<uint64_t>(-1);
34   }
35   virtual ~DwarfDebugFrame() = default;
36 
GetCieOffsetFromFde32(uint32_t pointer)37   uint64_t GetCieOffsetFromFde32(uint32_t pointer) override {
38     return this->entries_offset_ + pointer;
39   }
40 
GetCieOffsetFromFde64(uint64_t pointer)41   uint64_t GetCieOffsetFromFde64(uint64_t pointer) override {
42     return this->entries_offset_ + pointer;
43   }
44 
AdjustPcFromFde(uint64_t pc)45   uint64_t AdjustPcFromFde(uint64_t pc) override { return pc; }
46 };
47 
48 }  // namespace unwindstack
49 
50 #endif  // _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H
51