File: MemoryFake.h

package info (click to toggle)
android-platform-system-core 1%3A8.1.0%2Br23-5
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 19,480 kB
  • sloc: cpp: 137,841; ansic: 30,813; asm: 3,504; python: 1,754; makefile: 235; sh: 225; xml: 73
file content (94 lines) | stat: -rw-r--r-- 2,398 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
/*
 * 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_TESTS_MEMORY_FAKE_H
#define _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H

#include <stdint.h>

#include <string>
#include <vector>
#include <unordered_map>

#include <unwindstack/Memory.h>

namespace unwindstack {

class MemoryFake : public Memory {
 public:
  MemoryFake() = default;
  virtual ~MemoryFake() = default;

  bool Read(uint64_t addr, void* buffer, size_t size) override;

  void SetMemory(uint64_t addr, const void* memory, size_t length);

  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;

  bool Read(uint64_t, void* buffer, size_t size) override {
    memset(buffer, 0, size);
    return true;
  }
};

class MemoryFakeRemote : public MemoryRemote {
 public:
  MemoryFakeRemote() : MemoryRemote(0) {}
  virtual ~MemoryFakeRemote() = default;

 protected:
  bool PtraceRead(uint64_t, long* value) override {
    *value = 0;
    return true;
  }
};

}  // namespace unwindstack

#endif  // _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H