. Let me know
you cannot find it.
We do plan to submit to trunk for both gcc and kernel changes. But we
don't expect it happens shortly.
-Rong> From: vulcansh
> Date: Fri, Oct 14, 2011 at 2:53 PM
> Subject: Re: [google] support for building Linux kernel with FDO
> (issue4523061)
I found this thread through a Google search so I didn't have much context.
Can you point me to the google/main source repo for gcc and the kernel? Are
there plans to migrate this patch to the gcc and Linux mainline?
Sorry, but I have never used the PGO option in icc.
Steve
Xinliang David Li
This patch is for google/main which is 4.7 based, but the validated
version is in google_46 branch (which is based on 4.6).
By the way (given that you are from intel), do you know if linux
kernel can be built with icc with PGO turned on? Our intern Xiaotian
has tried to use icc (12.0) to built ke
Rong Xu wrote:
>
> That will be good.
> But you never know, we internally have fixed some bugs that filed to
> us because people use kernel's old gcov code (many versions guarded by
> ifdef) for their tests.
>
> -Rong
>
Has there been any progress one this patch? What version of gcc is this
That will be good.
But you never know, we internally have fixed some bugs that filed to
us because people use kernel's old gcov code (many versions guarded by
ifdef) for their tests.
-Rong
On Mon, May 16, 2011 at 4:23 PM, Andi Kleen wrote:
> Rong Xu writes:
>
>>> The current kernel code is for
On Sun, May 15, 2011 at 3:27 AM, Jan Hubicka wrote:
>> On Fri, May 13, 2011 at 5:54 AM, Paolo Bonzini wrote:
>> > On 05/13/2011 03:03 AM, Rong Xu wrote:
>> >>
>> >> * gcc/coverage.c (revision 173717): set a flag if building
>> >> for Linux kernel.
>> >> * gcc/tree-profile.c
Rong Xu writes:
>> The current kernel code is for gcc 3. That could be simply
>> replaced with a modern gcc 4 interface.
>
> You cannot replace. You have to keep the code for every gcc versions
> that being used.
I don't think it's a problem to not support gcc 3 gcov/profiling
anymore.
-Andi
-
> On Mon, May 16, 2011 at 3:38 PM, Andi Kleen wrote:
> > Jan Hubicka writes:
> >> Yep,
> >> I think it does make sense to share the implementation, but we need to find
> >> resonable way to do so.
> >
> > I doubt this will be very popular with the kernel community, which
> > prefers self containe
On Mon, May 16, 2011 at 3:38 PM, Andi Kleen wrote:
> Jan Hubicka writes:
>> Yep,
>> I think it does make sense to share the implementation, but we need to find
>> resonable way to do so.
>
> I doubt this will be very popular with the kernel community, which
> prefers self contained code.
Won't b
On Mon, May 16, 2011 at 3:38 PM, Andi Kleen wrote:
> Jan Hubicka writes:
>> Yep,
>> I think it does make sense to share the implementation, but we need to find
>> resonable way to do so.
>
> I doubt this will be very popular with the kernel community, which
> prefers self contained code.
>
> Also
Jan Hubicka writes:
> Yep,
> I think it does make sense to share the implementation, but we need to find
> resonable way to do so.
I doubt this will be very popular with the kernel community, which
prefers self contained code.
Also the interface doesn't change that often or does it?
The curren
Agreed.
David
On Sun, May 15, 2011 at 3:27 AM, Jan Hubicka wrote:
>> On Fri, May 13, 2011 at 5:54 AM, Paolo Bonzini wrote:
>> > On 05/13/2011 03:03 AM, Rong Xu wrote:
>> >>
>> >> * gcc/coverage.c (revision 173717): set a flag if building
>> >> for Linux kernel.
>> >> * gcc/
> On Fri, May 13, 2011 at 5:54 AM, Paolo Bonzini wrote:
> > On 05/13/2011 03:03 AM, Rong Xu wrote:
> >>
> >> * gcc/coverage.c (revision 173717): set a flag if building
> >> for Linux kernel.
> >> * gcc/tree-profile.c (revision 173717): don't emit TLS
> >> declarations for L
Thanks for the comments. This particular patch is not intended for
trunk. But we do want to hear your feedback on our designs.
On Fri, May 13, 2011 at 9:31 AM, Xinliang David Li wrote:
> On Fri, May 13, 2011 at 5:54 AM, Paolo Bonzini wrote:
>> On 05/13/2011 03:03 AM, Rong Xu wrote:
>>>
>>>
Thanks for the comments. This particular patch is not intended for
trunk. But we do want to hear your feedback on our designs.
On Fri, May 13, 2011 at 9:31 AM, Xinliang David Li wrote:
> On Fri, May 13, 2011 at 5:54 AM, Paolo Bonzini wrote:
>> On 05/13/2011 03:03 AM, Rong Xu wrote:
>>>
>>>
On 05/13/2011 06:31 PM, Xinliang David Li wrote:
> 1) add a new TLS model -ftls-model=none and make the kernel uses it. The
> model would simply force targetm.have_tls to false.
>
This is a good idea.
> 2) as Richi mentioned, gcov-io and libgcov changes then can move to the
> kernel, and
On Fri, May 13, 2011 at 5:54 AM, Paolo Bonzini wrote:
> On 05/13/2011 03:03 AM, Rong Xu wrote:
>>
>> * gcc/coverage.c (revision 173717): set a flag if building
>> for Linux kernel.
>> * gcc/tree-profile.c (revision 173717): don't emit TLS
>> declarations for Linux kernel bu
On Fri, May 13, 2011 at 11:43:42AM +0200, Jan Hubicka wrote:
> > On Fri, May 13, 2011 at 6:53 AM, Xinliang David Li
> > wrote:
> > > Ok for google/main.
> >
> > Seems to be very special and not appropriate for GCC trunk. Instead
> > an adjusted copy providing the interface GCC needs should belo
On 05/13/2011 03:03 AM, Rong Xu wrote:
* gcc/coverage.c(revision 173717): set a flag if building for
Linux kernel.
* gcc/tree-profile.c(revision 173717): don't emit TLS declarations
for Linux kernel builds.
I think this should be done without touching at all the pr
> On Fri, May 13, 2011 at 6:53 AM, Xinliang David Li wrote:
> > Ok for google/main.
>
> Seems to be very special and not appropriate for GCC trunk. Instead
> an adjusted copy providing the interface GCC needs should belong to
> the kernel tree.
Andi Kleen also did work in this direction. We prob
On Fri, May 13, 2011 at 6:53 AM, Xinliang David Li wrote:
> Ok for google/main.
Seems to be very special and not appropriate for GCC trunk. Instead
an adjusted copy providing the interface GCC needs should belong to
the kernel tree.
Richard.
This patch add support to build Linux kernel with FDO.
Building Linux kernel with FDO needs both compiler change and
kernel changes. This part only contains the gcc changes. I'll
attach kernel changes to the reveiew thread for reference.
Source files gcov-io.c gcov-io.h and libgcov.c will be
22 matches
Mail list logo
