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80 lines
2.4 KiB
80 lines
2.4 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H |
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#define _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H |
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#include <stdint.h> |
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#include <vector> |
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#include <unwindstack/DwarfSection.h> |
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namespace unwindstack { |
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template <typename AddressType> |
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class DwarfDebugFrame : public DwarfSectionImpl<AddressType> { |
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public: |
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// Add these so that the protected members of DwarfSectionImpl |
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// can be accessed without needing a this->. |
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using DwarfSectionImpl<AddressType>::memory_; |
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using DwarfSectionImpl<AddressType>::fde_count_; |
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using DwarfSectionImpl<AddressType>::last_error_; |
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struct FdeInfo { |
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FdeInfo(uint64_t offset, uint64_t start, uint64_t length) |
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: offset(offset), start(start), end(start + length) {} |
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uint64_t offset; |
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AddressType start; |
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AddressType end; |
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}; |
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DwarfDebugFrame(Memory* memory) : DwarfSectionImpl<AddressType>(memory) {} |
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virtual ~DwarfDebugFrame() = default; |
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bool Init(uint64_t offset, uint64_t size) override; |
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bool GetFdeOffsetFromPc(uint64_t pc, uint64_t* fde_offset) override; |
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const DwarfFde* GetFdeFromIndex(size_t index) override; |
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bool IsCie32(uint32_t value32) override { return value32 == static_cast<uint32_t>(-1); } |
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bool IsCie64(uint64_t value64) override { return value64 == static_cast<uint64_t>(-1); } |
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uint64_t GetCieOffsetFromFde32(uint32_t pointer) override { return offset_ + pointer; } |
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uint64_t GetCieOffsetFromFde64(uint64_t pointer) override { return offset_ + pointer; } |
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uint64_t AdjustPcFromFde(uint64_t pc) override { return pc; } |
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bool GetCieInfo(uint8_t* segment_size, uint8_t* encoding); |
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bool AddFdeInfo(uint64_t entry_offset, uint8_t segment_size, uint8_t encoding); |
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bool CreateSortedFdeList(); |
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protected: |
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uint64_t offset_; |
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uint64_t end_offset_; |
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std::vector<FdeInfo> fdes_; |
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}; |
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} // namespace unwindstack |
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#endif // _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H
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