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 #include <inttypes.h>
18 #include <stdint.h>
19 #include <stdio.h>
20 #include <stdlib.h>
21
22 #include "MemoryFake.h"
23
24 namespace unwindstack {
25
SetMemoryBlock(uint64_t addr,size_t length,uint8_t value)26 void MemoryFake::SetMemoryBlock(uint64_t addr, size_t length, uint8_t value) {
27 for (size_t i = 0; i < length; i++, addr++) {
28 auto entry = data_.find(addr);
29 if (entry != data_.end()) {
30 entry->second = value;
31 } else {
32 data_.insert({addr, value});
33 }
34 }
35 }
36
SetMemory(uint64_t addr,const void * memory,size_t length)37 void MemoryFake::SetMemory(uint64_t addr, const void* memory, size_t length) {
38 const uint8_t* src = reinterpret_cast<const uint8_t*>(memory);
39 for (size_t i = 0; i < length; i++, addr++) {
40 auto value = data_.find(addr);
41 if (value != data_.end()) {
42 value->second = src[i];
43 } else {
44 data_.insert({ addr, src[i] });
45 }
46 }
47 }
48
Read(uint64_t addr,void * memory,size_t size)49 size_t MemoryFake::Read(uint64_t addr, void* memory, size_t size) {
50 uint8_t* dst = reinterpret_cast<uint8_t*>(memory);
51 for (size_t i = 0; i < size; i++, addr++) {
52 auto value = data_.find(addr);
53 if (value == data_.end()) {
54 return i;
55 }
56 dst[i] = value->second;
57 }
58 return size;
59 }
60
61 } // namespace unwindstack
62