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/*
* Copyright (C) 2021 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.
*/
#pragma once
#include <cstddef>
#include <cstring>
#include <unwindstack/Memory.h>
namespace unwindstack {
// MemoryLocalUnsafe is a prototype class to compare the performance of MemoryLocal::Read
// to an "unsafe" read that assumes the local memory address provided is valid (i.e. memory is
// not corrupted and address range lies within the stack).
class MemoryLocalUnsafe : public Memory {
public:
MemoryLocalUnsafe() = default;
virtual ~MemoryLocalUnsafe() = default;
size_t Read(uint64_t addr, void* dst, size_t size) override {
memcpy(dst, reinterpret_cast<void*>(addr), size);
return size;
}
};
} // namespace unwindstack
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