-----Original Message----- > Date: Tue, 19 Jun 2018 18:36:53 +0800 > From: Gavin Hu <gavin...@arm.com> > To: dev@dpdk.org > CC: n...@arm.com, gavin...@arm.com > Subject: [dpdk-dev] [PATCH v12 2/6] doc: add a guide doc for cross > compiling from x86 > X-Mailer: git-send-email 2.11.0 > > > From: gavin hu <gavin...@arm.com> > > This is the guide for cross compiling ARM64 DPDK from X86 hosts. > > Signed-off-by: Gavin Hu <gavin...@arm.com> > Reviewed-by: Steve Capper <steve.cap...@arm.com> > Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com> > Acked-by: Marko Kovacevic <marko.kovace...@intel.com>
There is a build warning. Please check it ➜ [master][dpdk.org] $ make doc-guides-html sphinx processing guides-html... /export/dpdk.org/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst:133: WARNING: Unexpected indentation. > --- > .../linux_gsg/cross_build_dpdk_for_arm64.rst | 137 > +++++++++++++++++++++ > doc/guides/linux_gsg/index.rst | 1 + > 2 files changed, 138 insertions(+) > create mode 100644 doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > > diff --git a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > new file mode 100644 > index 000000000..551f0aef8 > --- /dev/null > +++ b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst > @@ -0,0 +1,137 @@ > +.. 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. > + > +.. 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. > + > +Obtain the cross tool chain > +--------------------------- > +The latest cross compile tool chain can be downloaded from: > +https://releases.linaro.org/components/toolchain/binaries/latest/aarch64-linux-gnu/. A newline is better here for readability in rendered html file. > +Following is the step to get the version 7.2.1, latest one at the time of > this writing. > + > +.. code-block:: console > + > + wget https://releases.linaro.org/components/toolchain/binaries/latest/ > + aarch64-linux-gnu/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu.tar.xz Please make this single line for easy access to URL in rendered html. > + > +Unzip and add into the PATH > +--------------------------- > + > +.. code-block:: console > + > + tar -xvf gcc-linaro-7.2.1-2017.11-x86_64_aarch64-linux-gnu.tar.xz > + export PATH=$PATH:<cross_install_dir>/gcc-linaro-7.2.1-2017.11-x86_64 > + _aarch64-linux-gnu/bin Please make this single line for easy access to URL in rendered html. > + > +.. note:: > + > + For the host requirements and other info, refer to the release note > section: > + https://releases.linaro.org/components/toolchain/binaries/latest/ > + > +Getting the prerequisite library > +-------------------------------- > + > +NUMA is required by most modern machines, not needed for non-NUMA > architectures. > + > +.. note:: > + > + For compiling the NUMA lib, run libtool --version to ensure the libtool > version >= 2.2, > + otherwise the compilation will fail with errors. > + > +.. code-block:: console > + > + git clone https://github.com/numactl/numactl.git > + cd numactl > + git checkout v2.0.11 -b v2.0.11 > + ./autogen.sh > + autoconf -i > + ./configure --host=x86_64 CC=aarch64-linux-gnu-gcc prefix=<numa install > dir> > + make install > + > +The numa header files and lib file is generated in the include and lib > folder respectively under <numa install dir>. > + > +.. _argment_the_cross_toolcain_with_numa_support: s/toolchin/toolchain > + > +Augment the cross toolchain with NUMA support > +--------------------------------------------- > + > +.. note:: > + > + This way is optional, an alternative is to use extra CFLAGS and LDFLAGS, > depicted in :ref:`configure_and_cross_compile_dpdk_build` below. > + > +Copy the NUMA header files to the cross compiler's include directory: > + > +.. code-block:: console > + > + cp <numa_install_dir>/include/numa*.h > <cross_install_dir>/gcc-linaro-7.2.1-2017.11 > + -x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/include/ Please make this single line for easy access in rendered html. > + cp <numa_install_dir>/lib/libnuma.a > <cross_install_dir>/gcc-linaro-7.2.1-2017.11 > + -x86_64_aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/7.2.1/ Please make this single line for easy access in rendered html. > + > +.. _configure_and_cross_compile_dpdk_build: > + > +Configure and cross compile DPDK Build > +-------------------------------------- > +To configure a build, choose one of the target configurations, like > arm64-dpaa2-linuxapp-gcc and arm64-thunderx-linuxapp-gcc. > + > +.. code-block:: console > + > + make config T=arm64-armv8a-linuxapp-gcc > + > +To cross-compile, without compiling the kernel modules, use the following > command: > + > +.. code-block:: console > + > + make -j CROSS=aarch64-linux-gnu- CONFIG_RTE_KNI_KMOD=n > CONFIG_RTE_EAL_IGB_UIO=n > + > +To cross-compile, including the kernel modules, the kernel source tree needs > to be specified by setting > +RTE_KERNELDIR: > + > +.. code-block:: console > + > + make -j CROSS=aarch64-linux-gnu- RTE_KERNELDIR=<kernel_src_rootdir> > + CROSS_COMPILE=aarch64-linux-gnu- > + > +To compile for non-NUMA targets, without compiling the kernel modules, use > the following command: > + > +.. code-block:: console > + > + make -j CROSS=aarch64-linux-gnu- CONFIG_RTE_KNI_KMOD=n > CONFIG_RTE_EAL_IGB_UIO=n > + CONFIG_RTE_LIBRTE_VHOST_NUMA=n CONFIG_RTE_EAL_NUMA_AWARE_HUGEPAGES=n Please make this single line for easy access in rendered html. > + > +.. note:: > + > + 1. EXTRA_CFLAGS and EXTRA_LDFLAGS should be added to include the NUMA > headers and link the library respectively, > + if the above step :ref:`argment_the_cross_toolcain_with_numa_support` was > skipped therefore the toolchain was not s/toolcain/toolchain > + argmented with NUMA support. augmented?? > + > + 2. "-isystem <numa_install_dir>/include" should be add to EXTRA_CFLAGS, > otherwise the numa.h file will get a lot of compiling > + errors of Werror=cast-qual, Werror=strict-prototypes and > Werror=old-style-definition. > + > + An example is given below: > + > + .. code-block:: console > + > + make -j CROSS=aarch64-linux-gnu- CONFIG_RTE_KNI_KMOD=n > CONFIG_RTE_EAL_IGB_UIO=n > + EXTRA_CFLAGS="-isystem <numa_install_dir>/include" EXTRA_LDFLAGS= > + "-L<numa_install_dir>/lib -lnuma" Please make this single line for easy access in rendered html. > + > +Meson Cross Compiling DPDK > +-------------------------- > + > +To cross-compile DPDK on a desired target machine we can use the following > +command:: > + > + meson cross-build --cross-file <target_machine_configuration> ninja -C cross-build > + > +For example if the target machine is arm64 we can use the following > +command:: > + meson arm-build --cross-file config/arm/arm64_armv8_linuxapp_gcc s/arm-build/arm64-build?? ninja -C arm64-build/ step is missing. > diff --git a/doc/guides/linux_gsg/index.rst b/doc/guides/linux_gsg/index.rst > index 2a7bdfe92..077f93023 100644 > --- a/doc/guides/linux_gsg/index.rst > +++ b/doc/guides/linux_gsg/index.rst > @@ -13,6 +13,7 @@ Getting Started Guide for Linux > intro > sys_reqs > build_dpdk > + cross_build_dpdk_for_arm64 > linux_drivers > build_sample_apps > enable_func > -- > 2.11.0 >
