[PATCH] elf: Add la_objsearch2 with lmid parameter for rtld-audit [BZ #34093]

[DJ Delorie]

> -/* Call the la_objsearch from the audit modules from the link map L.  If
> -   ORIGNAME is non NULL, it is updated with the previous name prior calling
> -   la_objsearch.  */
> +/* Call la_objsearch2 / la_objsearch from the audit modules for the link map L
> +   and namespace NSID.  */
>  const char *_dl_audit_objsearch (const char *name, struct link_map *l,
> -                                unsigned int code)
> +                                Lmid_t nsid, unsigned int code)
>     attribute_hidden;

I think what the part you removed is trying to say, is that if the
shared object you asked for was a symlink (such as libfoo.8.so ->
libfoo.8.1.so) then the original asked-for name (libfoo.8.so) is
what's passed to la_objsearch(), not the linked-to-file
(libfoo.8.1.so) that will be actually opened.

I suspect this info should go in the upcoming documentation instead,
unless it counts as an implementation detail.  It should of course be
verified first ;-)

This new API should go in the upcoming documentation too, but it's not
fair to ask for that before either the API or the documentation are in
place ;-)