67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2019 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_MEMORY_RANGE_H
|
||
|
|
#define _LIBUNWINDSTACK_MEMORY_RANGE_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include <map>
|
||
|
|
#include <memory>
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
#include <unwindstack/Memory.h>
|
||
|
|
|
||
|
|
namespace unwindstack {
|
||
|
|
|
||
|
|
// MemoryRange maps one address range onto another.
|
||
|
|
// The range [src_begin, src_begin + length) in the underlying Memory is mapped onto offset,
|
||
|
|
// such that range.read(offset) is equivalent to underlying.read(src_begin).
|
||
|
|
class MemoryRange : public Memory {
|
||
|
|
public:
|
||
|
|
MemoryRange(const std::shared_ptr<Memory>& memory, uint64_t begin, uint64_t length,
|
||
|
|
uint64_t offset);
|
||
|
|
virtual ~MemoryRange() = default;
|
||
|
|
|
||
|
|
size_t Read(uint64_t addr, void* dst, size_t size) override;
|
||
|
|
|
||
|
|
uint64_t offset() { return offset_; }
|
||
|
|
uint64_t length() { return length_; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::shared_ptr<Memory> memory_;
|
||
|
|
uint64_t begin_;
|
||
|
|
uint64_t length_;
|
||
|
|
uint64_t offset_;
|
||
|
|
};
|
||
|
|
|
||
|
|
class MemoryRanges : public Memory {
|
||
|
|
public:
|
||
|
|
MemoryRanges() = default;
|
||
|
|
virtual ~MemoryRanges() = default;
|
||
|
|
|
||
|
|
void Insert(MemoryRange* memory);
|
||
|
|
|
||
|
|
size_t Read(uint64_t addr, void* dst, size_t size) override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::map<uint64_t, std::unique_ptr<MemoryRange>> maps_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace unwindstack
|
||
|
|
|
||
|
|
#endif // _LIBUNWINDSTACK_MEMORY_RANGE_H
|