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 SetMemoryBlock(uint64_t addr, size_t length, uint8_t value); 40 SetData8(uint64_t addr,uint8_t value)41 void SetData8(uint64_t addr, uint8_t value) { 42 SetMemory(addr, &value, sizeof(value)); 43 } 44 SetData16(uint64_t addr,uint16_t value)45 void SetData16(uint64_t addr, uint16_t value) { 46 SetMemory(addr, &value, sizeof(value)); 47 } 48 SetData32(uint64_t addr,uint32_t value)49 void SetData32(uint64_t addr, uint32_t value) { 50 SetMemory(addr, &value, sizeof(value)); 51 } 52 SetData64(uint64_t addr,uint64_t value)53 void SetData64(uint64_t addr, uint64_t value) { 54 SetMemory(addr, &value, sizeof(value)); 55 } 56 SetMemory(uint64_t addr,std::vector<uint8_t> values)57 void SetMemory(uint64_t addr, std::vector<uint8_t> values) { 58 SetMemory(addr, values.data(), values.size()); 59 } 60 SetMemory(uint64_t addr,std::string string)61 void SetMemory(uint64_t addr, std::string string) { 62 SetMemory(addr, string.c_str(), string.size() + 1); 63 } 64 Clear()65 void Clear() { data_.clear(); } 66 67 private: 68 std::unordered_map<uint64_t, uint8_t> data_; 69 }; 70 71 class MemoryFakeAlwaysReadZero : public Memory { 72 public: 73 MemoryFakeAlwaysReadZero() = default; 74 virtual ~MemoryFakeAlwaysReadZero() = default; 75 Read(uint64_t,void * buffer,size_t size)76 size_t Read(uint64_t, void* buffer, size_t size) override { 77 memset(buffer, 0, size); 78 return size; 79 } 80 }; 81 82 } // namespace unwindstack 83 84 #endif // _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H 85