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/*
* 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_UTILS_MEMORY_FAKE_H
#define _LIBUNWINDSTACK_UTILS_MEMORY_FAKE_H
#include <stdint.h>
#include <string>
#include <unordered_map>
#include <vector>
#include <unwindstack/Memory.h>
namespace unwindstack {
class MemoryFake : public Memory {
public:
MemoryFake() = default;
virtual ~MemoryFake() = default;
size_t Read(uint64_t addr, void* buffer, size_t size) override;
void SetMemory(uint64_t addr, const void* memory, size_t length);
void SetMemoryBlock(uint64_t addr, size_t length, uint8_t value);
void SetData8(uint64_t addr, uint8_t value) { SetMemory(addr, &value, sizeof(value)); }
void SetData16(uint64_t addr, uint16_t value) { SetMemory(addr, &value, sizeof(value)); }
void SetData32(uint64_t addr, uint32_t value) { SetMemory(addr, &value, sizeof(value)); }
void SetData64(uint64_t addr, uint64_t value) { SetMemory(addr, &value, sizeof(value)); }
void SetMemory(uint64_t addr, std::vector<uint8_t> values) {
SetMemory(addr, values.data(), values.size());
}
void SetMemory(uint64_t addr, std::string string) {
SetMemory(addr, string.c_str(), string.size() + 1);
}
void Clear() { data_.clear(); }
private:
std::unordered_map<uint64_t, uint8_t> data_;
};
class MemoryFakeAlwaysReadZero : public Memory {
public:
MemoryFakeAlwaysReadZero() = default;
virtual ~MemoryFakeAlwaysReadZero() = default;
size_t Read(uint64_t, void* buffer, size_t size) override {
memset(buffer, 0, size);
return size;
}
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_UTILS_MEMORY_FAKE_H
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