[Bug dynamic-link/11767] RFE: dlopen of in-memory ET_DYN or ET_EXEC object

["greg at krypto dot org" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=11767

--- Comment #10 from Gregory P. Smith <greg at krypto dot org> 2012-07-19 04:32:05 UTC ---
I see no problem with a requirement to already have the dso mapped and
aligned with proper permissions beforehand. That makes sense.

Remy described my "comment 2" use case in much better detail. The .so's are
extension modules for a runtime being executed via the #! line on the
bundle or similar. Python in my case but this applies equally to any
dynamic language runtime.

tmpfs is not an ideal solution as now you would be required to setup tmpfs,
mount it, use it, and require some separate process configured not to be
OOM killed to sit around and monitor your process that is using the tmpfs
to be able to unmount it when the process dies for whatever reason to free
up the resources. Not to mention that systems run without swap so a tmpfs
would pin the full dso in memory rather than demand paging the parts being
used as a mapping would do.

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