Back to Basics: The Structure of a Program

on YouTube ↗01h 02m

" summary

Covers exactly what the compiler and linker do: conversion of each .cpp into one object file, phases 1–9 of translation, and how macros/includes produce huge translation units (main.i becomes 41,625 lines with gcc 10.2 on Ubuntu 18.04). Explains the Itanium ABI vs MS ABI, why name mangling encodes types, the one-definition rule and when inline permits multiple definitions, and which linker tools (ld, gold, lld, link.exe) fail or succeed at resolving symbols.

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" chapters (15)

1. 0:00Start
2. 1:18Goals
3. 2:52Building and Running a C++ Program
4. 3:58Input Files
5. 6:44C++ Programming Ecosystem - Building Executables
6. 9:56C++ Programming Ecosystem - Building Dynamic Libraries
7. 10:32C++ Programming Ecosystem - Building Static Libraries
8. 11:47How do We Represent C++ Programs?
9. 13:30Building a C++ Executable
10. 18:05Phases of Translation (3)
11. 28:03Declarations and Definitions
12. 37:47Internal Linkage
13. 52:22Name Mangling
14. 55:40Linking Linking is the final stage of compilation, performed by the linker
15. 56:31Loading and Running . The operating system loader validates the executable Image file

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