1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H 18 #define _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H 19 20 #include <stdint.h> 21 22 #include <string> 23 #include <vector> 24 #include <unordered_map> 25 26 #include <unwindstack/Memory.h> 27 28 namespace unwindstack { 29 30 class MemoryFake : public Memory { 31 public: 32 MemoryFake() = default; 33 virtual ~MemoryFake() = default; 34 35 size_t Read(uint64_t addr, void* buffer, size_t size) override; 36 37 void SetMemory(uint64_t addr, const void* memory, size_t length); 38 39 void SetData8(uint64_t addr, uint8_t value) { 40 SetMemory(addr, &value, sizeof(value)); 41 } 42 43 void SetData16(uint64_t addr, uint16_t value) { 44 SetMemory(addr, &value, sizeof(value)); 45 } 46 47 void SetData32(uint64_t addr, uint32_t value) { 48 SetMemory(addr, &value, sizeof(value)); 49 } 50 51 void SetData64(uint64_t addr, uint64_t value) { 52 SetMemory(addr, &value, sizeof(value)); 53 } 54 55 void SetMemory(uint64_t addr, std::vector<uint8_t> values) { 56 SetMemory(addr, values.data(), values.size()); 57 } 58 59 void SetMemory(uint64_t addr, std::string string) { 60 SetMemory(addr, string.c_str(), string.size() + 1); 61 } 62 63 void Clear() { data_.clear(); } 64 65 private: 66 std::unordered_map<uint64_t, uint8_t> data_; 67 }; 68 69 class MemoryFakeAlwaysReadZero : public Memory { 70 public: 71 MemoryFakeAlwaysReadZero() = default; 72 virtual ~MemoryFakeAlwaysReadZero() = default; 73 74 size_t Read(uint64_t, void* buffer, size_t size) override { 75 memset(buffer, 0, size); 76 return size; 77 } 78 }; 79 80 } // namespace unwindstack 81 82 #endif // _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H 83
