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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:
     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 
     37   uint64_t GetCieOffsetFromFde32(uint32_t pointer) override {
     38     return this->entries_offset_ + pointer;
     39   }
     40 
     41   uint64_t GetCieOffsetFromFde64(uint64_t pointer) override {
     42     return this->entries_offset_ + pointer;
     43   }
     44 
     45   uint64_t AdjustPcFromFde(uint64_t pc) override { return pc; }
     46 };
     47 
     48 }  // namespace unwindstack
     49 
     50 #endif  // _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H
     51