massive increase of the size of the library

[Paul Zimmermann]

       Dear Florian,

> From: Florian Weimer <fweimer@redhat.com>
> Cc: libc-alpha@sourceware.org,  Vincent.Lefevre@ens-lyon.fr
> Date: Tue, 21 Jul 2020 10:26:04 +0200
> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)
> 
> * Paul Zimmermann:
> 
> > some user reported us that the size of the MPFR library did increase a lot
> > between 4.0.2 and 4.1.0. I notice a similar fact for the GNU libc, between
> > 2.28 and 2.29, both for libc.a and libc.so (the same holds for libm.a and
> > libm.so):
> >
> > -rw-r--r-- 1 zimmerma caramba  5121680 May 20 10:49 /localdisk/zimmerma/glibc-2.28/build/libc.a
> > -rw-r--r-- 1 zimmerma caramba 45919382 Mar  6 07:58 /localdisk/zimmerma/glibc-2.29/build/libc.a
> >
> > -rwxr-xr-x 1 zimmerma caramba  2092096 May 20 11:07 /localdisk/zimmerma/glibc-2.28/build/libc.so
> > -rwxr-xr-x 1 zimmerma caramba 18769880 Mar  6 07:58 /localdisk/zimmerma/glibc-2.29/build/libc.so
> >
> > We see an increase in size by a factor of almost 10!
> 
> Can you put the file somewhere?  My first guess would be that it's
> debugging information.  The “size” tool from binutils shows numbers
> without debugging information.
> 
> Thanks,
> Florian

sure, the files are here:

https://members.loria.fr/PZimmermann/libc-2.28.a
https://members.loria.fr/PZimmermann/libc-2.28.so
https://members.loria.fr/PZimmermann/libc-2.29.a
https://members.loria.fr/PZimmermann/libc-2.29.so

Paul