On Thu, Jul 2, 2020 at 11:07 AM Phil Yang <phil.y...@arm.com> wrote: > > Hi Jerin, > > Your insight would be much appreciated. > > Thanks, > Phil > > > -----Original Message----- > > From: Ruifeng Wang <ruifeng.w...@arm.com> > > Sent: Wednesday, May 27, 2020 4:29 PM > > To: Phil Yang <phil.y...@arm.com>; dev@dpdk.org > > Cc: tho...@monjalon.net; david.march...@redhat.com; > > jer...@marvell.com; Honnappa Nagarahalli > > <honnappa.nagaraha...@arm.com>; Joyce Kong <joyce.k...@arm.com>; nd > > <n...@arm.com>; sta...@dpdk.org > > Subject: RE: [dpdk-dev] [PATCH 2/2] doc: add aarch32 build guidance > > > > > > > -----Original Message----- > > > From: dev <dev-boun...@dpdk.org> On Behalf Of Phil Yang > > > Sent: Monday, November 11, 2019 6:34 PM > > > To: dev@dpdk.org > > > Cc: tho...@monjalon.net; david.march...@redhat.com; > > > jer...@marvell.com; Honnappa Nagarahalli > > > <honnappa.nagaraha...@arm.com>; Gavin Hu (Arm Technology China) > > > <gavin...@arm.com>; Joyce Kong (Arm Technology China) > > > <joyce.k...@arm.com>; nd <n...@arm.com>; sta...@dpdk.org > > > Subject: [dpdk-dev] [PATCH 2/2] doc: add aarch32 build guidance > > > > > > Add a guidance for aarch64 natively build 32-bit aarch32 DPDK. > > > > > > Cc: sta...@dpdk.org > > > > > > Signed-off-by: Phil Yang <phil.y...@arm.com> > > > Reviewed-by: Gavin Hu <gavin...@arm.com> > > > Tested-by: Joyce Kong <joyce.k...@arm.com> > > > > > > --- > > > .../linux_gsg/cross_build_dpdk_for_arm64.rst | 36 > > > ++++++++++++++++++---- > > > 1 file changed, 30 insertions(+), 6 deletions(-) > > > > > > diff --git a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > > > b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > > > index e799b0b..409d444 100644 > > > --- a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > > > +++ b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > > > @@ -1,15 +1,15 @@ > > > .. SPDX-License-Identifier: BSD-3-Clause > > > Copyright(c) 2018 ARM Corporation. > > > > > > -Cross compile DPDK for ARM64 > > > -============================ > > > -This chapter describes how to cross compile DPDK for ARM64 from x86 > > build > > > hosts. > > > +Cross compile DPDK for aarch64 and aarch32 > > > +========================================== > > > +This chapter describes how to cross-compile DPDK for aarch64 from x86 > > and > > > compile 32-bit aarch32 DPDK from aarch64 build hosts. > > > > > > .. note:: > > > > > > - Whilst it is recommended to natively build DPDK on ARM64 (just > > > - like with x86), it is also possible to cross-build DPDK for ARM64. An > > > - ARM64 cross compile GNU toolchain is used for this. > > > + Whilst it is recommended to natively build DPDK on aarch64 (just > > > + like with x86), it is also possible to cross-build DPDK for aarch64. > > > An > > > + aarch64 cross compile GNU toolchain is used for this. > > > > > > Obtain the cross tool chain > > > --------------------------- > > > @@ -133,3 +133,27 @@ command:: > > > > > > meson arm64-build --cross-file config/arm/arm64_armv8_linux_gcc > > > ninja -C arm64-build > > > + > > > +Compiling DPDK for aarch32/armv7 on aarch64 host > > > +------------------------------------------ > > > + > > > +Some aarch64 platforms support EL0 aarch32 mode, so the 32-bit aarch32 > > > +applications and the legacy 32-bit armv7 applications can run in this > > > mode. > > > +With the GNU C compiler for the armhf architecture toolchain > > > +gcc-arm-linux-gnueabihf, it can generate aarch32 binary on aarch64 > > natively. > > > + > > > +For Example, in 64-bit Debian, we can use the following command to build
I think, "we" usage should be removed from the doc. > > > 32-bit armv7 DPDK on aarch64 natively: > > > + > > > +Install cross compile toolchain for the armhf architecure. > > > +command:: > > > + > > > + dpkg --add-architecture armhf > > > + apt-get update > > > + apt-get install -y gcc gcc-arm-linux-gnueabihf libc6:armhf make > > > +binutils > > > + > > > +Build DPDK arm-armv7a-linuxapp-gcc executables. > > > +command:: > > > + > > > + cd <dpdk_folder> > > > + make config CROSS=arm-linux-gnueabihf- T=arm-armv7a-linuxapp- > > > gcc > > > + make -j CROSS=arm-linux-gnueabihf- T=arm-armv7a-linuxapp-gcc > > > +RTE_DEVEL_BUILD=n make based build is deprecated, Please change this to meson. The rest looks good to me. > > > -- > > > 2.7.4 > > > > Acked-by: Ruifeng Wang <ruifeng.w...@arm.com>
