Which GCC is best for building Xen?

Which GCC is best for building Xen?

[Tim Post]

Hello to all,

Am I headed for trouble continuing to use gcc 3.4 to build Xen ? I find
gcc 4.1 just too noisy for my own comfort because I disagree with many
of its warnings. I have both installed, I lean on 3.4 most.

I know they are only warnings, but they indicate gcc is doing something
it didn't used to do before. I spent a while trying to study the two to
answer this one for myself but I found it best to ask. I have enough on
my plate just becoming proficient with C, much less its compiler :)

Am I ok to continue with 3.4?

Please reply to me (cc), I am not a subscriber.

Kind regards in advance,
--Tim

Re: Which GCC is best for building Xen?

[Keir Fraser]

GCC 3.4.x is what I use most of the time. We'll support it for a long while
yet.

 -- Keir

On 29/7/07 05:07, "Tim Post" <tim.post@netkinetics.net> wrote:

> Hello to all,
> 
> Am I headed for trouble continuing to use gcc 3.4 to build Xen ? I find
> gcc 4.1 just too noisy for my own comfort because I disagree with many
> of its warnings. I have both installed, I lean on 3.4 most.
> 
> I know they are only warnings, but they indicate gcc is doing something
> it didn't used to do before. I spent a while trying to study the two to
> answer this one for myself but I found it best to ask. I have enough on
> my plate just becoming proficient with C, much less its compiler :)
> 
> Am I ok to continue with 3.4?
> 
> Please reply to me (cc), I am not a subscriber.
> 
> Kind regards in advance,
> --Tim
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: Which GCC is best for building Xen?

[pradeep singh rautela]

Hi
On 7/30/07, Keir Fraser <Keir.Fraser@cl.cam.ac.uk> wrote:
> GCC 3.4.x is what I use most of the time. We'll support it for a long while
> yet.

gcc 4.1.2 build fine for me though.
A little tweaking is certainly required in the config files to lower
down the paranoia of the GCC compiler for Xen.

BTW Keir, any strong reasons for sticking to GCC 3.4 and not upgrading
to GCC 4.x series?

Sorry if this has been discussed before, a link to the mail archive
will be really appreciated.

Thanks
--pradeep
[...]
-- 
--
pradeep singh rautela

"Genius is 1% inspiration, and 99% perspiration" - not me :)

Re: Which GCC is best for building Xen?

[Keir Fraser]

GCC 4.x is supported. Any regressions in compatibility with gcc 4.x should
be reported so that they can be fixed -- usually this means avoiding
compiler warnings in subdirectories which are compiled with -Werror.
Subdirectories which do not use -Werror have a reason for that -- e.g., not
wanting to needlessly diverge from upstream qemu by putting in workarounds
for otherwise harmless compiler warnings.

 -- Keir

On 2/8/07 08:00, "pradeep singh rautela" <rautelap@gmail.com> wrote:

> gcc 4.1.2 build fine for me though.
> A little tweaking is certainly required in the config files to lower
> down the paranoia of the GCC compiler for Xen.
> 
> BTW Keir, any strong reasons for sticking to GCC 3.4 and not upgrading
> to GCC 4.x series?
> 
> Sorry if this has been discussed before, a link to the mail archive
> will be really appreciated.

Re: Which GCC is best for building Xen?

[pradeep singh rautela]

Oh... sorry for missing the point.
Thanks for pointing that out, Keir.

Regards,
--pradeep

On 8/2/07, Keir Fraser <keir@xensource.com> wrote:
> GCC 4.x is supported. Any regressions in compatibility with gcc 4.x should
> be reported so that they can be fixed -- usually this means avoiding
> compiler warnings in subdirectories which are compiled with -Werror.
> Subdirectories which do not use -Werror have a reason for that -- e.g., not
> wanting to needlessly diverge from upstream qemu by putting in workarounds
> for otherwise harmless compiler warnings.
>
>  -- Keir
>
> On 2/8/07 08:00, "pradeep singh rautela" <rautelap@gmail.com> wrote:
>
> > gcc 4.1.2 build fine for me though.
> > A little tweaking is certainly required in the config files to lower
> > down the paranoia of the GCC compiler for Xen.
> >
> > BTW Keir, any strong reasons for sticking to GCC 3.4 and not upgrading
> > to GCC 4.x series?
> >
> > Sorry if this has been discussed before, a link to the mail archive
> > will be really appreciated.
>
>


-- 
--
pradeep singh rautela

"Genius is 1% inspiration, and 99% perspiration" - not me :)