[Bug dynamic-link/30100] [patch] add dlmem()

["stsp at users dot sourceforge.net" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=30100

--- Comment #37 from Stas Sergeev <stsp at users dot sourceforge.net> ---
Hmm, it seems like dlmem() indeed has
a difficult to solve problem. Its that
DT_NEEDED deps are not going to refer
to the memory buffer, but to an FS only.
It means that to dlmem() with deps, one
needs a premap per-dep callback or (hate
to say that) an elf parsing to get the
deps out.
It seems the one can't avoid both together,
and allowing the loader to get the deps
from an FS (which is what my impl does),
is a restricted solution.

The same problem applies to fdlopen()
and dlopen_with_offset(): DT_NEEDED entries
are not going to refer to an fd or an
fd with offset, so one would need a pre-open
per-dep callback or (hate to say that) an elf
parsing to get the deps out.
This is a cheap hint for you on where to
get the rejecting reason for such proposals
in the future, as you seem to be in a deep
need of the valid one. :)

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