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