[PATCH] Avoid mapping past end of shared object (BZ #18685)

[Mike Frysinger]

On 16 Jul 2015 13:17, Carlos O'Donell wrote:
> On 07/16/2015 12:36 PM, Andreas Schwab wrote:
> > Perhaps ldd should use a specially compiled ld.so that has a lot of
> > extra checks added (so that it can be run on arbitrary objects without
> > creating security hazards).
> 
> ldd should be a distinct tool that uses libelf, and provides deeper
> introspection and options. This way we have a second implementation
> of the loader rules in a cleaner and concise form that we can use
> to double-check assertions about load order and cycle breakage,
> and cross-check ld.so changes.

i agree in having a dedicated/robust tool, but i don't think it means we should 
disable the trace option in the ldso itself.  having a way to get the actual 
details out of the ldso i think is still valuable.

i also don't think glibc should be dependent upon the elfutils package ...
-mike
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