[dpdk-dev] [PATCH] build: set CFLAGS for ppc64el build

[Thomas Monjalon]

2016-02-16 16:04, Fernando Seiti Furusato:
> Hi Thomas.
> 
> On 02/12/2016 05:18 PM, Fernando Seiti Furusato wrote:
> > Hello Thomas.
> > Thanks for your quick response.
> >
> > On 02/12/2016 03:37 PM, Thomas Monjalon wrote:
> >> 2016-02-12 12:05, Fernando Seiti Furusato:
> >>> Add a proper ifeq statement to set the mcpu as needed for ppc64el, as
> >>> the only one originally set is not valid for ppc architectures.
> >>
> >> What is the benefit of using the default machine config, compared to
> >> the power8 one?
> >>
> >> Don't you think the default machine should be renamed core2?
> >
> > I think it would be better indeed. Thanks for pointing that out.
> >
> >>
> >> [...]
> >>> +ifeq (ppc64le,$(shell uname -m))
> >>> +        MACHINE_CFLAGS += -mcpu=power8
> >>
> >> Why this flag is not set in mk/machine/power8/rte.vars.mk ?
> >>
> >
> > This and what observed above would make a better patch.
> > Let me try those.
> 
> I will be just changing the flag within mk/machine/power8/rte.vars.mk so
> it will be used on ppc64le.

Does it mean that only little endian is supported on POWER8?

> I thought since I am not sure how it will affect others, I will not mess
> with the default file.

Yes let's keep it for another patch if someone is concerned.

> I had to copy config/defconfig_ppc_64-power8-linuxapp-gcc to
> config/defconfig_ppc64le-native-linuxapp-gcc, because the build searches
> for it on ppc64le. Should I include that in the patch?
> Do you think there is a better approach?

Not sure to understand.
I think there is something wrong in the commands you use to compile.
Are you using "make config T=ppc_64-power8-linuxapp-gcc" ?