Multiverse: While static variability can be completely resolved at
compile time, dynamic variation points come at a cost arising from
extra tests and branches in the control flow.
Multiverse is an approach to
handle dynamic variability efficiently by means of binary patching.
It provides an extension to the C programming language that enables
the developer to express dynamic variability in performance-critical
paths. With specially annotated config variables, multiverse can
generate multiple versions of a function and dynamically binary patch
the running system to use the version of the current configuration.
The goal is to narrow the gap between dynamic and static variability
by allowing the developer to easily employ run-time configurability at
zero or low cost.
- CADOS: Configurability-Aware Development of Operating Systems (DFG: LO 1719/3-1)
- In the CADOS project, we investigate scalable methods and tools to deal with the implementation of variability across all implementation layers of modern system software.
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