d226a51409
- Add namespace unwindstack everywhere so that it's easier for other code to use the library. - Move some of the header files into include/unwindstack so that they can be exposed. - Modify the headers so that only a limited number need to be exposed. - Update the tools to use the new headers. - Add a GetLoadBias() call on the Elf object. This prevents the need to get the interface object out of the Elf object. - Move the GetRelPc() call out of the Reg class, to the Elf class. It's not always the case that a Reg object will be around when you want to get a relative pc. The tests for this moved to ElfTest.cpp. Bug: 23762183 Test: Unit tests pass. Change-Id: Iac609dac1dd90ed83d1a1e24ff2579c96c023bc3
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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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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