On Fri, Sep 23, 2022 at 3:39 AM Iain Sandoe <iain@sandoe.co.uk> wrote:

> Hello Naresh,
>
> > On 23 Sep 2022, at 01:40, Gade, Naresh (Coral Springs)
> <naresh.gade@Fiserv.com> wrote:
>
> > We have downloaded GCC V10.3 compiler on our AIX server but we noticed a
> weird thing about the size of object files for certain source files.
> >
> > When tried to dump the object file, we noticed the DATA segment in the
> file is a large chunk of NULLS and it is eating lot of memory space.
>

GCC changed default behavior to use -fno-common.  This probably is
initialized zeroes.  You can try adding -fcommon to revert to the original
behavior, but please ensure that you understand the impact of that semantic.

Thanks, David