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what-does-a-linker-do

A collection of small examples demonstrating various linker features.

  • Aliases: define multiple symbols with the same address
  • Dynamic export control: provide a strict list of exported dynamic symbols
  • Dynamic relocation: link at load-time a symbol from a shared library
  • Encapsulation script: mark symbols local or global with a script
  • Interposition: wrap function calls to a shared library with a cutstom function
  • Introspection: guess the type of a pointer
  • Load time substitution: replace a shared library with another one at load-time
  • Memory layout script: change the executable memory layout with a script
  • Merge sections
  • Multiple weak definitions: link with multiple definitions of the same symbol
  • Optional weak definition: allow missing symbols
  • Run path: specify shared libraries paths directly in the executable
  • Static relocation: link at compile-time a symbol from a static library
  • String suffix merge: optimization when multiple strings have the same suffix
  • Versioning: build a shared library with versioned symbols
  • Visibility archive: set symbol visibility when building an archive
  • Visibility attributes: make symbols local or global with attributes

License

MIT