99 lines
3.0 KiB
C++
99 lines
3.0 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_ELF_INTERFACE_ARM_H
|
|
#define _LIBUNWINDSTACK_ELF_INTERFACE_ARM_H
|
|
|
|
#include <elf.h>
|
|
#include <stdint.h>
|
|
|
|
#include <iterator>
|
|
#include <unordered_map>
|
|
|
|
#include <unwindstack/ElfInterface.h>
|
|
#include <unwindstack/Memory.h>
|
|
|
|
namespace unwindstack {
|
|
|
|
class ElfInterfaceArm : public ElfInterface32 {
|
|
public:
|
|
ElfInterfaceArm(Memory* memory) : ElfInterface32(memory) {}
|
|
virtual ~ElfInterfaceArm() = default;
|
|
|
|
class iterator : public std::iterator<std::bidirectional_iterator_tag, uint32_t> {
|
|
public:
|
|
iterator(ElfInterfaceArm* interface, size_t index) : interface_(interface), index_(index) { }
|
|
|
|
iterator& operator++() { index_++; return *this; }
|
|
iterator& operator++(int increment) { index_ += increment; return *this; }
|
|
iterator& operator--() { index_--; return *this; }
|
|
iterator& operator--(int decrement) { index_ -= decrement; return *this; }
|
|
|
|
bool operator==(const iterator& rhs) { return this->index_ == rhs.index_; }
|
|
bool operator!=(const iterator& rhs) { return this->index_ != rhs.index_; }
|
|
|
|
uint32_t operator*() {
|
|
uint32_t addr = interface_->addrs_[index_];
|
|
if (addr == 0) {
|
|
if (!interface_->GetPrel31Addr(interface_->start_offset_ + index_ * 8, &addr)) {
|
|
return 0;
|
|
}
|
|
interface_->addrs_[index_] = addr;
|
|
}
|
|
return addr;
|
|
}
|
|
|
|
private:
|
|
ElfInterfaceArm* interface_ = nullptr;
|
|
size_t index_ = 0;
|
|
};
|
|
|
|
iterator begin() { return iterator(this, 0); }
|
|
iterator end() { return iterator(this, total_entries_); }
|
|
|
|
bool Init(int64_t* section_bias) override;
|
|
|
|
bool GetPrel31Addr(uint32_t offset, uint32_t* addr);
|
|
|
|
bool FindEntry(uint32_t pc, uint64_t* entry_offset);
|
|
|
|
void HandleUnknownType(uint32_t type, uint64_t ph_offset, uint64_t ph_filesz) override;
|
|
|
|
bool Step(uint64_t pc, Regs* regs, Memory* process_memory, bool* finished,
|
|
bool* is_signal_frame) override;
|
|
|
|
bool StepExidx(uint64_t pc, Regs* regs, Memory* process_memory, bool* finished);
|
|
|
|
bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* offset) override;
|
|
|
|
uint64_t start_offset() { return start_offset_; }
|
|
|
|
size_t total_entries() { return total_entries_; }
|
|
|
|
void set_load_bias(uint64_t load_bias) { load_bias_ = load_bias; }
|
|
|
|
protected:
|
|
uint64_t start_offset_ = 0;
|
|
size_t total_entries_ = 0;
|
|
uint64_t load_bias_ = 0;
|
|
|
|
std::unordered_map<size_t, uint32_t> addrs_;
|
|
};
|
|
|
|
} // namespace unwindstack
|
|
|
|
#endif // _LIBUNWINDSTACK_ELF_INTERFACE_ARM_H
|