Libosuction is a tool for minification of shared libraries and executables in the ELF format in closed-world setups. It works in phases (full-system rebuilds), augmenting the build process with necessary analyses and/or transformations.

Libosuction does not depend on any particular build system. However, the source tree of the project does include the tooling necessary for using libosuction on packages cross-compiled in OBS environment.

Design documentation and the user guide can be found in the txt/ subdirectory.

Also, some academic papers covering the design of libosuction have been published:

• System-Wide Elimination of Unreferenced Code and Data in Dynamically Linked Programs (2017)
• Pruning ELF: Size Optimization of Dynamic Shared Objects at Post-link Time (2018)