79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2016 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _LIBUNWINDSTACK_DWARF_EH_FRAME_WITH_HDR_H
|
||
|
|
#define _LIBUNWINDSTACK_DWARF_EH_FRAME_WITH_HDR_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include <unordered_map>
|
||
|
|
|
||
|
|
#include "DwarfEhFrame.h"
|
||
|
|
|
||
|
|
namespace unwindstack {
|
||
|
|
|
||
|
|
// Forward declarations.
|
||
|
|
class Memory;
|
||
|
|
|
||
|
|
template <typename AddressType>
|
||
|
|
class DwarfEhFrameWithHdr : public DwarfEhFrame<AddressType> {
|
||
|
|
public:
|
||
|
|
// Add these so that the protected members of DwarfSectionImpl
|
||
|
|
// can be accessed without needing a this->.
|
||
|
|
using DwarfSectionImpl<AddressType>::memory_;
|
||
|
|
using DwarfSectionImpl<AddressType>::fde_count_;
|
||
|
|
using DwarfSectionImpl<AddressType>::entries_offset_;
|
||
|
|
using DwarfSectionImpl<AddressType>::entries_end_;
|
||
|
|
using DwarfSectionImpl<AddressType>::last_error_;
|
||
|
|
|
||
|
|
struct FdeInfo {
|
||
|
|
AddressType pc;
|
||
|
|
uint64_t offset;
|
||
|
|
};
|
||
|
|
|
||
|
|
DwarfEhFrameWithHdr(Memory* memory) : DwarfEhFrame<AddressType>(memory) {}
|
||
|
|
virtual ~DwarfEhFrameWithHdr() = default;
|
||
|
|
|
||
|
|
bool Init(uint64_t offset, uint64_t size) override;
|
||
|
|
|
||
|
|
bool GetFdeOffsetFromPc(uint64_t pc, uint64_t* fde_offset) override;
|
||
|
|
|
||
|
|
const DwarfFde* GetFdeFromIndex(size_t index) override;
|
||
|
|
|
||
|
|
const FdeInfo* GetFdeInfoFromIndex(size_t index);
|
||
|
|
|
||
|
|
bool GetFdeOffsetSequential(uint64_t pc, uint64_t* fde_offset);
|
||
|
|
|
||
|
|
bool GetFdeOffsetBinary(uint64_t pc, uint64_t* fde_offset, uint64_t total_entries);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
uint8_t version_;
|
||
|
|
uint8_t ptr_encoding_;
|
||
|
|
uint8_t table_encoding_;
|
||
|
|
size_t table_entry_size_;
|
||
|
|
|
||
|
|
uint64_t ptr_offset_;
|
||
|
|
|
||
|
|
uint64_t entries_data_offset_;
|
||
|
|
uint64_t cur_entries_offset_ = 0;
|
||
|
|
|
||
|
|
std::unordered_map<uint64_t, FdeInfo> fde_info_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace unwindstack
|
||
|
|
|
||
|
|
#endif // _LIBUNWINDSTACK_DWARF_EH_FRAME_WITH_HDR_H
|