What Does the Linker Actually Do for Us?
summary
Covers how linkers build executables from C/C++ object files on Linux/ELF: contents of object files (sections, symbols, relocations), how code and data are arranged, how the OS runs a program and how that influences linking, and C++-specific issues like template instantiation and inline functions. Demonstrations use ELF examples and tooling to inspect object files and executables.
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