Hi All

Attached is the complete env variables file
I have added RTE_KERNELDIR too
Also I am  now using gnu-eabi version 5.4.0
[arm-openwrt-linux-muslgnueabi-gcc (LEDE GCC 5.4.0 r3909-6411a12) 5.4.0]
But I am still getting the same error

Currently I am not using buildroot
Is there any step by step available guide for cross compiling dpdk using
buildroot for target arm cortex-a15 using some external toolchain.
I found this http://dpdk.org/ml/archives/announce/2015-October/000066.html


Please advise



Thanks

On Tue, May 16, 2017 at 5:14 PM, Neil Horman <nhorman@tuxdriver.com> wrote:

> On Tue, May 16, 2017 at 12:51:40PM +0200, Jan Viktorin wrote:
> > Hello Jimmy,
> >
> > On Tue, 16 May 2017 15:38:22 +0530
> > Jimmy Carter <jimmycarter256@gmail.com> wrote:
> >
> > > Hi All
> > >
> > > I am using dpdk16.11.1 and want to use openwrt external toolchain so
> that I
> > > can cross compile for arm cortex 15
> > > neon.(arm_cortex-a15+neon-vfpv4_gcc-5.4.0_musl_eabi)
> >
> > I've never built DPDK with musl-eabi. I don't think that your issue is
> > related but just note that my builds have always been done with gnueabi.
> >
> > > My target board is Tp link archer C2600.
> > > I am have assigned these env variables but still getting compilation
> error
> > >
> > > export
> > > STAGING_DIR=/home/xav-101000739/ovslede/source/
> staging_dir/toolchain-arm_cortex-a15+neon-vfpv4_gcc-5.4.0_musl_eabi
> > > export
> > > PATH=$PATH:/home/xav-101000739/ovslede/source/
> staging_dir/toolchain-arm_cortex-a15+neon-vfpv4_gcc-5.4.0_musl_eabi/bin
> > >
> > >
> > > export CROSS=arm-openwrt-linux-
> > > export DPDK_TARGET=arm-armv7a-linuxapp-gcc
> > > export DPDK_DIR=$PWD
> > > export DPDK_BUILD=$DPDK_DIR/$DPDK_TARGET
> > > export
> > > CFLAGS+=-I/home/xav-101000739/ovslede/source/staging_dir/
> toolchain-arm_cortex-a15+neon-vfpv4_gcc-5.4.0_musl_eabi
> > > export RTE_SDK=$PWD
> > > export RTE_TARGET=arm-armv7a-linuxapp-gcc
> > > export DPDK_BUILD_DIR=arm-armv7a-linuxapp-gcc
> > >
> >
> > There is a patch to Buildroot that can help you with the setup. See:
> >
> >  https://patchwork.ozlabs.org/patch/611383/
> >
> > >
> > > Error:Attached file
> >
> > Your build fails on
> >
> > eal_memory.c:92:
> > /home/xav-101000739/Downloads/dpdk/dpdk-stable-16.11.1/
> build/include/rte_lcore.h:56:10: error: unknown type name 'cpu_set_t'
> >   typedef cpu_set_t rte_cpuset_t;
> >
> > This looks like there is some issue with Linux Kernel headers.
> >
> > lib/librte_eal/common/include/rte_lcore.h:
> >
> >  53 #if defined(__linux__)
> >  54         typedef cpu_set_t rte_cpuset_t;
> >  55 #elif defined(__FreeBSD__)
> >  56 #include <pthread_np.h>
> >  57         typedef cpuset_t rte_cpuset_t;
> >  58 #endif
> >
> > Probably, you should set the RTE_KERNELDIR properly.
> >
> I don't think so.  cpu_set_t is most recently defined in
> /usr/include/bits/shced.h, which is a glibc header.  What version of glibc
> are
> you building with?
>
> Neil
>
> > >
> > > Please advise
> > > Does dpdk have support for openwrt (arm cortex a15)
> >
> > DPDK does not support OpenWRT because (as far as I know) nobody from
> > the DPDK community is using it in this way. I build DPDK via Buildroot
> > but this is unsupported by the DPDK upstream.
> >
> > I could build DPDK for Cortex-A7, Cortex-A9 and Cortex-A15 in the past.
> >
> > I run regular builds of the master branch and I can see no breakage
> > for the arm-armv7a-linuxapp-gcc configuration.
> >
> > Regards
> > Jan
> >
> > >
> > > Thanks
> > > Akshay
> >
>