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Is pre-linking worth it?

Is pre-linking worth it?

Posted Jul 16, 2009 11:22 UTC (Thu) by mjthayer (guest, #39183)
In reply to: Is pre-linking worth it? by nix
Parent article: Is pre-linking worth it?

Perhaps because the pre-linking made it unnecessary to open certain on-disk library files to do the symbol look ups, putting that off until symbols from them were actually needed? Just a guess.

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Is pre-linking worth it?

Posted Jul 16, 2009 17:51 UTC (Thu) by nix (subscriber, #2304) [Link]

No, relocations within a given library would happen when that library was
opened: the relocation process cannot trigger additional library opens
that weren't already going to happen.

In any case, most library opens during system startup will be driven by
DT_NEEDED, in which case the whole dependency tree of them gets mmap()ed
immediately.


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