Hi Jerin, Your insight would be much appreciated.
Thanks, Phil > -----Original Message----- > From: Ruifeng Wang <[email protected]> > Sent: Wednesday, May 27, 2020 4:29 PM > To: Phil Yang <[email protected]>; [email protected] > Cc: [email protected]; [email protected]; > [email protected]; Honnappa Nagarahalli > <[email protected]>; Joyce Kong <[email protected]>; nd > <[email protected]>; [email protected] > Subject: RE: [dpdk-dev] [PATCH 2/2] doc: add aarch32 build guidance > > > > -----Original Message----- > > From: dev <[email protected]> On Behalf Of Phil Yang > > Sent: Monday, November 11, 2019 6:34 PM > > To: [email protected] > > Cc: [email protected]; [email protected]; > > [email protected]; Honnappa Nagarahalli > > <[email protected]>; Gavin Hu (Arm Technology China) > > <[email protected]>; Joyce Kong (Arm Technology China) > > <[email protected]>; nd <[email protected]>; [email protected] > > Subject: [dpdk-dev] [PATCH 2/2] doc: add aarch32 build guidance > > > > Add a guidance for aarch64 natively build 32-bit aarch32 DPDK. > > > > Cc: [email protected] > > > > Signed-off-by: Phil Yang <[email protected]> > > Reviewed-by: Gavin Hu <[email protected]> > > Tested-by: Joyce Kong <[email protected]> > > > > --- > > .../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 > > 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 > > -- > > 2.7.4 > > Acked-by: Ruifeng Wang <[email protected]>
