[PATCH]: hurd: Do not hide rtld symbols which need to be preempted [Was: hurd: Hidden symbols in rtld]

[Samuel Thibault <samuel dot thibault at ens-lyon dot org>]

Samuel Thibault, on Sun 20 Mar 2016 17:42:14 +0100, wrote:
> AIUI, this is because there are weak definitions in
> sysdeps/mach/hurd/dl-sysdep.c which need to be preempted by the libc
> one, right?  Is __access perhaps missing in the list?  There is a weak
> definition for __access in dl-sysdep.c.
> 
> Also, 6d56699d7e808419ccf244150ecba122156932ba ('Mark internal fcntl
> functions hidden') made __open hidden, but dl-sysdep.c has a weak
> definition, which AIUI needs to be preempted too, so that this commit
> should be split to a dl-fcntl.h that sysdepas/mach/hurd/ can provide,
> right?
> 
> (Just asking the question, I'll handle commiting etc.)

Just to explicit things, attached is the fix I'm considering.

Samuel

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