pthread_cleanup_push_defer_np.3: missing functions in glibc

[Alejandro Colomar (man-pages)]

Hi Florian,

On 3/8/21 11:39 AM, Florian Weimer wrote:
> * Alejandro Colomar:
> 
>> While adding 'restrict' to the prototypes, I found that the functions
>> defined in this page don't exist on glibc (or I couldn't find them).
>> I tried removing _np, and still no luck, and 'git log --grep' didn't
>> help either.  Where these functions removed at some point?
> 
> Yes, they are part of the legacy cancellation implementation that
> predates DWARF unwinding.

Thanks for the info.  I guess we should add that to the manual page. 
I've tried checking out some quite old versions of glibc and still 
didn't find the functions.  If you know more details about when they 
were removed, please tell me and I'll update it.

Thanks,

Alex

-- 
Alejandro Colomar
Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/
http://www.alejandro-colomar.es/