Re: [dpdk-dev] Build KNI module failed

["Juraj Linkeš" <juraj.linkes@pantheon.tech>]

Maybe we actually need to step back a bit and talk about versions.

Which DPDK version are you using?
Why are you using the old make build system instead of Meson?

Support for KNI cross-compilation was only added recently to Meson and I don't know enough about the old Make system to comment on that.

Juraj

> -----Original Message-----
> From: Juraj Linkeš
> Sent: Friday, April 30, 2021 2:18 PM
> To: 'Joakim Zhang' <qiangqing.zhang@nxp.com>; users@dpdk.org;
> dev@dpdk.org
> Subject: RE: Build KNI module failed
> 
> Hi Joakim,
> 
> When I cross-compiled KNI I only used gcc that comes with Ubuntu, e.g.:
> sudo apt install gcc-aarch64-linux-gnu libc6-dev-arm64-cross pkg-config-
> aarch64-linux-gnu
> 
> Which Ubuntu version are you using? The Ubuntu18.04 gcc works fine:
> aarch64-linux-gnu-gcc -v
> gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
> 
> This is a bit strange, since the versions are the same/similar.
> 
> I am using this meson invocation:
> meson kni-cross-gcc -Denable_kmods=true -Dkernel_dir=/home/jlinkes/linux --
> cross-file config/arm/arm64_armv8_linux_gcc
> 
> /home/jlinkes/linux is where I have my Linux git repo.
> 
> Juraj
> 
> > -----Original Message-----
> > From: dev <dev-bounces@dpdk.org> On Behalf Of Joakim Zhang
> > Sent: Tuesday, April 27, 2021 11:43 AM
> > To: users@dpdk.org; dev@dpdk.org
> > Subject: [dpdk-dev] Build KNI module failed
> >
> >
> > Hi guys,
> >
> > Is there anyone met gcc build error when build KNI module on Ubuntu to
> > cross build ARM64?
> > I tried both gcc-linaro-6.5.0-2018.12-x86_64_aarch64-linux-gnu and
> > gcc-linaro- 7.5.0-2019.12-x86_64_aarch64-linux-gnu.
> >
> > The error log as below, any comments would be appreciated! Thanks a lot!
> > == Build kernel/linux/kni
> >   CC [M]  /home/zqq/dpdk/arm64-dpaa-linuxapp-
> > gcc/build/kernel/linux/kni/kni_misc.o
> > aarch64-linux-gnu-gcc: error: unrecognized command line option
> > '-mstack- protector-guard=sysreg'; did you mean '-fstack-protector-strong'?
> > aarch64-linux-gnu-gcc: error: unrecognized command line option
> > '-mstack- protector-guard-reg=sp_el0'; did you mean '-fstack-protector-all'?
> > aarch64-linux-gnu-gcc: error: unrecognized command line option
> > '-mstack- protector-guard-offset=1096'; did you mean '-fstack-protector-
> strong'?
> > scripts/Makefile.build:279: recipe for target
> > '/home/zqq/dpdk/arm64-dpaa-
> > linuxapp-gcc/build/kernel/linux/kni/kni_misc.o' failed
> >
> > I search the source code, have not found these gcc command line options.
> >
> > Best Regards,
> > Joakim Zhang
> >