emersion / what-does-a-linker-do

A collection of small examples demonstrating various linker features

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

what-does-a-linker-do's Issues

Fix dynamic export control

http://www.cl.cam.ac.uk/~srk31/blog/devel/weak-symbols.html