Ian Lance Taylor iant@google.com
Wed Oct 16 04:24:00 GMT 2013

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On Tue, Oct 15, 2013 at 5:40 PM, Nico Williams <nico@cryptonector.com> wrote:
> An ELF filter is a shared object that can "filter" another object (the
> filtee).  It's mostly useful for three purposes: providing stubs for
> symbols whose implementations have moved from one object to another,
> providing stubs for possibly-not-installed functionality, and
> interposition on specific objects/symbols (and without having to use
> LD_PRELOAD).
>
> Is there any such functionality in binutils/gold/rtld?

Essentially no support is required in binutils/gold.  All the
interesting code is in the dynamic linker.  You sent this to the
binutils list; the binutils do not include a dynamic linker.

The glibc dynamic linker does support filters.

Ian

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