4.6. Symbol versioning

The linker conforms to the BPABI and supports symbol versions.

Symbol versioning records extra information about symbols imported from, and exported by, a dynamic shared object. The dynamic loader uses this extra information to ensure that all the symbols required by an image are available at load time.

Symbol versioning enables shared object creators to produce new versions of symbols for use by all new clients, while maintaining compatibility with clients linked against old versions of the shared object.

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