[patch] New option --disable-reenterable-atexit

[Ye Joey]

On Wed, Oct 16, 2013 at 4:34 PM, Sebastian Huber
<sebastian.huber@embedded-brains.de> wrote:
>> +`--disable-reenterable-atexit'
>> +     Disable reenterablility of atexit by declare related data structures
>> +     as global variables. By doing these data structures can be discarded
>> +     if atexit is not referenced.
>> +     Enabled by default.
>
>
> I think the naming and the description is a bit misleading.  The atexit()
> support is not thread specific.  Operations are serialized with the
> __atexit_lock lock.  In case _REENT_GLOBAL_ATEXIT is undefined, then the
> data structures for the atexit() support are part of struct _reent, but only
> used in _GLOBAL_REENT.  Thus the space in the thread specific structures is
> wasted. See also
>
> https://sourceware.org/ml/newlib/2013/msg00355.html
I named it to mean that atexit isn't in _reent. But _reent isn't a
good name as option as it is implementation specific data structure
name.

How about --enable-global-atexit-data, and changes the description accordingly?

Thanks,
Joey