[PATCH] libc.so: Replace nscd_hash.os with libc-nscd_hash.os [BZ #22459]

[Florian Weimer]

On 11/20/2017 02:18 PM, H.J. Lu wrote:

>>> Do we need to export it in GLIBC_2.27 space?  I prefer GLIBC_PRIVATE.
>>
>>> Otherwise, it looks good to me.
>>
>> The libnsl symbol isn't GLIBC_PRIVATE, but perhaps should have been.
> 
> You added  __nss_hash to libc.abilist.  Shouldn't it be in libc.so?

I can't change the libnsl symbol, and nscd won't be able to use libnsl.

>> I'm somewhat in favor of exporting this because independent nscd
>> implementations will need to implement the exact same hash function.
> 
> Do we support independent nscd implementation?

There is unscd (in the context of busybox), but it does not seem to 
support the maps.

> I think we should avoid
> exporting non-standard internal functions in public name space.  But this is
> my personal opinion.   If others believe it is OK, it is fine with me.

It's not really internal if we support alternative nscd implementations 
with compatible mappings.

Thanks,
Florian