[PATCH] abort: Only flush file-based stdio streams before termination

[Adhemerval Zanella]

On 17/08/2017 10:45, Carlos O'Donell wrote:
> On 08/17/2017 09:35 AM, Florian Weimer wrote:
>> Historically, glibc flushes streams on abort, which is not
>> required by POSIX.  This can trigger additional work
>> (including callbacks through function pointers) in processes
>> which are known to be in a bad state.  After this change,
>> only streams which are backed by the standard descriptor-based
>> implementation are flushed.
> 
> Does this mean open_memstream streams to NVM won't be flushed by
> default?
> 
> As a user I might be convinced that my own custom streams need to
> flushed by hand in an abort handler, but I might expect open_memstream
> streams to be flushed.
> 

For my BZ#21735 fix (libio: Fix open_memstream fflush (NULL)), you
indicate you asked for clarification regarding open_memstream [1].  
I think we should follow the same semantic for abort after Austin 
Group clarification.

[1] http://austingroupbugs.net/view.php?id=1156