Vostokov Dmitry / Востоков Дмитрий - Memory Thinking for C and C++ Linux Diagnostics: Slides with Descriptions Only / Анализ памяти для диагностики Linux на C и C++: только слайды с описаниями [2023, PDF, ENG]

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Table of Contents 3
Preface 15
About the Author 16
Introduction 17
Original Training Course Name 17
Prerequisites 18
Training Goals 19
Training Principles 20
Schedule 21
Training Idea 22
General C & C++ Aspects 23
What We Do Not Cover 25
Linux C & C++ Aspects 26
Why C & C++? 27
Which C & C++? 29
My History of C & C++ 30
C and C++ Mastery Process 32
Thought Process 33
Philosophy of Pointers 34
Pointer 35
Pointer Dereference 36
Many to One 37
Many to One Dereference 38
Invalid Pointer 39
Invalid Pointer Dereference 40
Wild (Dangling) Pointer 41
Pointer to Pointer 42
Pointer to Pointer Dereference 43
Naming Pointers and Entities 44
Names as Pointer Content 45
Pointers as Entities 46
Memory and Pointers 47
Mental Exercise 48
Debugger Memory Layout 49
Memory Dereference Layout 50
Names as Addresses 51
Addresses and Entities 52
Addresses and Structures 53
Pointers to Structures 54
Arrays 55
Arrays and Pointers to Arrays 56
Strings and Pointers to Strings 57
Basic Types 58
ASCII Characters and Pointers 59
Bytes and Pointers 60
Wide Characters and Pointers 61
Integers 62
Little-Endian System 63
Short Integers 64
Long and Long Long Integers 65
Signed and Unsigned Integers 66
Fixed Size Integers 67
Booleans 68
Bytes 69
Size 70
Alignment 71
LP64 72
Nothing and Anything 73
Automatic Type Inference 74
Entity Conversion 75
Pointer Conversion (C-Style) 76
Numeric Promotion/Conversion 77
Numeric Conversion 78
Incompatible Types 79
Forcing 80
Structures, Classes, and Objects 82
Structures 83
Access Level 84
Classes and Objects 85
Structures and Classes 86
Pointer to Structure 87
Pointer to Structure Dereference 88
Many Pointers to One Structure 89
Many to One Dereference 90
Invalid Pointer to Structure 91
Invalid Pointer Dereference 92
Wild (Dangling) Pointer 93
Pointer to Pointer to Structure 94
Pointer to Pointer Dereference 95
Memory and Structures 96
Addresses and Structures 97
Structure Field Access 98
Pointers to Structures 99
Pointers to Structure Fields 100
Structure Inheritance 101
Structure Slicing 102
Inheritance Access Level 104
Structures and Classes II 105
Internal Structure Alignment 106
Static Structure Fields 107
Uniform Initialization 108
Old Initialization Ways 109
New Way {} 110
Uniform Structure Initialization 111
Static Field Initialization 112
Macros, Types, and Synonyms 113
Macros 114
Old Way 115
New Way 116
Memory Storage 117
Overview 118
Thread Stack Frames 119
Local Variable Value Lifecycle 120
Stack Allocation Pitfalls 122
Explicit Local Allocation 124
Dynamic Allocation (C-style) 125
Dynamic Allocation (C++) 126
Memory Operators 127
Memory Expressions 128
Local Pointers (Manual) 129
In-place Allocation 131
Source Code Organisation 132
Logical Layer (Translation Units) 133
Physical Layer (Source Files) 134
Inter-TU Sharing 135
Classic Static TU Isolation 136
Namespace TU Isolation 137
Declaration and Definition 138
TU Definition Conflicts 139
Fine-grained TU Scope Isolation 140
Conceptual Layer (Design) 141
Incomplete Types 142
References 143
Type& vs. Type* 144
Values 145
Value Categories 146
Constant Values 147
Constant Expressions 148
Functions 149
Pointers to Functions 150
Function Pointer Types 152
Reading Declarations 153
Structure Function Fields 154
Structure Methods 155
Structure Methods (Inlined) 156
Structure Methods (Inheritance) 157
Structure Virtual Methods 159
Structure Pure Virtual Methods 161
Structure as Interface 162
Function Structure 163
Structure Constructors 164
Structure Copy Constructor 165
Structure Copy Assignment 166
Structure Destructor 167
Structure Destructor Hierarchy 168
Structure Virtual Destructor 169
Destructor as a Method 170
Conversion Operators 171
Parameters by Value 173
Parameters by Pointer/Reference 174
Parameters by Ptr/Ref to Const 175
Possible Mistake 176
Function Overloading 177
Immutable Objects 178
Static Structure Functions 179
Lambdas 180
x64 CPU Registers 181
x64 Instructions and Registers 182
x64 Memory and Stack Addressing 183
x64 Memory Load Instructions 184
x64 Memory Store Instructions 185
x64 Flow Instructions 186
x64 Function Parameters 187
x64 Struct Function Parameters 188
A64 CPU Registers 189
A64 Instructions and Registers 190
A64 Memory and Stack Addressing 191
A64 Memory Load Instructions 192
A64 Memory Store Instructions 193
A64 Flow Instructions 194
A64 Function Parameters 195
A64 Struct Function Parameters 196
this 197
Function Objects vs. Lambdas 198
A64 Lambda Example 200
Captures and Closures 201
A64 Captures Example 203
Lambdas as Parameters 204
A64 Lambda Parameter Example 206
Lambda Parameter Optimization 207
A64 Optimization Example 209
Lambdas as Unnamed Functions 210
std::function Lambda Parameters 212
auto Lambda Parameters 214
Lambdas as Return Values 216
Virtual Function Call 218
VTBL Memory Layout 219
VPTR and Struct Memory Layout 220
Templates: A Planck-length Introduction 221
Why Templates? 222
Reusability 223
Types of Templates 225
Types of Template Parameters 226
Type Safety 228
Flexibility 230
Metafunctions 231
Iterators as Pointers 232
Containers 233
Iterators 234
Constant Iterators 235
Pointers as Iterators 236
Algorithms 237
Memory Ownership 238
Pointers as Owners 239
Problems with Pointer Owners 240
Smart Pointers 241
Basic Design 242
Unique Pointers 243
Descriptors as Unique Pointers 244
Shared Pointers 245
RAII 246
RAII Definition 247
RAII Advantages 248
File Descriptor RAII 249
Threads and Synchronization 250
Threads in C/C++ 251
Threads in C++ Proper 252
Synchronization Problems 253
Synchronization Solution 254
Resources 255
C and C++ 256
Training (Linux C and C++) 257