Re: GCC V10.3 compiler issue.

Re: GCC V10.3 compiler issue.

[Iain Sandoe]

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 is a large project, with different folks handling different parts of the compiler; I am not the right person to answer an AIX question (although I can say that what you report might not necessarily be unexpected depending on the code you were compiling).

====

1. If you are looking for help in using GCC the right place to post a question is here:

gcc-help@gcc.gnu.org (I’ve already CC’d in this reply).

2. If you think that there is a bug in GCC then please follow the guidelines here:

https://gcc.gnu.org/bugs/

Your message above does not have enough information for a developer to figure out if it represents a genuine issue.

HTH,
Iain

>  
> Regards,
> Naresh Gade
> NFE Debit gateway development

Re: GCC V10.3 compiler issue.

[David Edelsohn]

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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