RE: [PATCH] config: set pkgconfig for ppc64le

[Ali Alnubani <alialnu@nvidia.com>]

> -----Original Message-----
> From: Ali Alnubani
> Sent: Wednesday, July 13, 2022 1:14 PM
> To: Thomas Monjalon <thomas@monjalon.net>
> Cc: dev@dpdk.org; David Christensen <drc@linux.vnet.ibm.com>
> Subject: RE: [PATCH] config: set pkgconfig for ppc64le
> 
> > -----Original Message-----
> > From: Thomas Monjalon <thomas@monjalon.net>
> > Sent: Wednesday, July 13, 2022 12:12 PM
> > To: Ali Alnubani <alialnu@nvidia.com>
> > Cc: dev@dpdk.org; David Christensen <drc@linux.vnet.ibm.com>
> > Subject: Re: [PATCH] config: set pkgconfig for ppc64le
> >
> > 13/07/2022 09:39, Ali Alnubani:
> > > > -----Original Message-----
> > > > From: Thomas Monjalon <thomas@monjalon.net>
> > > > Sent: Monday, July 11, 2022 11:11 PM
> > > > To: Ali Alnubani <alialnu@nvidia.com>
> > > > Cc: dev@dpdk.org; David Christensen <drc@linux.vnet.ibm.com>
> > > > Subject: Re: [PATCH] config: set pkgconfig for ppc64le
> > > >
> > > > + PPC maintainer
> > > >
> > > > 07/07/2022 13:41, Ali Alnubani:
> > > > > Meson fails to detect the dependencies that are included
> > > > > in PKG_CONFIG_PATH and built for ppc64le if binaries.pkgconfig
> > > > > is not set in the ppc64le cross-file for Ubuntu.
> > > > >
> > > > > This fixes the issue by setting binaries.pkgconfig to the
> > > > > binary provided by the package 'pkg-config-powerpc64le-linux-gnu'.
> > > > >
> > > > > Signed-off-by: Ali Alnubani <alialnu@nvidia.com>
> > > > > ---
> > > > >  config/ppc/ppc64le-power8-linux-gcc-ubuntu | 1 +
> > > >
> > > > Why not adding the same for ppc64le-power8-linux-gcc?
> > > >
> > > > > +pkgconfig = 'powerpc64le-linux-gnu-pkg-config'
> > >
> > > I didn't find any operating systems that distribute the powerpc64le cross-
> > compiler with the binary names found in config/ppc/ppc64le-power8-linux-
> > gcc.
> > > Both Ubuntu and Fedora use the -gnu suffix. Fedora doesn't seem to
> have
> > a pkg-config binary for powerpc64le though.
> >
> > So how does it work on Fedora?
> >
> 
> On Fedora, the pcc64 cross-compiler is provided by package 'gcc-
> powerpc64le-linux-gnu' with binary names /usr/bin/powerpc64le-linux-gnu-
> *, same as in Ubuntu.
> The cross-file config/ppc/ppc64le-power8-linux-gcc doesn't work with
> Fedora since the binary names in the file don't have the -gnu suffix, so I'm
> not sure where this cross-file is being used.
> 
> Another issue I found is that when I set the correct binary names in
> config/ppc/ppc64le-power8-linux-gcc or use config/ppc/ppc64le-power8-
> linux-gcc-ubuntu, I get the following error on Fedora:
>     config/ppc/meson.build:6:4: ERROR: Problem encountered: Only 64-bit
> compiles are supported for this platform type
> It happens because cc.sizeof('void *') in
> https://git.dpdk.org/dpdk/tree/config/meson.build#n144 returns '-1'. I'm on
> Fedora 35.

I believe that's because the Fedora package doesn't provide stdio.h for ppc64le.

> 
> Is anyone able to cross-build for ppc64le in Fedora?