The latest cross compile tool chain can be downloaded from:
https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads.
-Following is the step to get the version 8.2, latest one at the time of this writing.
+It is always recommended to check and get the latest compiler tool from the page and use
+it to generate better code. As of this writing 8.3-2019.03 is the newest, the following
+description is an example of this version.
.. code-block:: console
- wget https://developer.arm.com/-/media/Files/downloads/gnu-a/8.2-2019.01/gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu.tar.xz
+ wget https://developer.arm.com/-/media/Files/downloads/gnu-a/8.3-2019.03/binrel/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz
Unzip and add into the PATH
---------------------------
.. code-block:: console
- tar -xvf gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu.tar.xz
- export PATH=$PATH:<cross_install_dir>/gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/bin
+ tar -xvf gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz
+ export PATH=$PATH:<cross_install_dir>/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/bin
.. note::
git clone https://github.com/numactl/numactl.git
cd numactl
- git checkout v2.0.11 -b v2.0.11
+ git checkout v2.0.13 -b v2.0.13
./autogen.sh
autoconf -i
./configure --host=aarch64-linux-gnu CC=aarch64-linux-gnu-gcc --prefix=<numa install dir>
.. note::
- This way is optional, an alternative is to use extra CFLAGS and LDFLAGS, depicted in :ref:`configure_and_cross_compile_dpdk_build` below.
+ This way is optional, an alternative is to use extra CFLAGS and LDFLAGS.
Copy the NUMA header files and lib to the cross compiler's directories:
.. code-block:: console
- cp <numa_install_dir>/include/numa*.h <cross_install_dir>/gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/include/
- cp <numa_install_dir>/lib/libnuma.a <cross_install_dir>/gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.2/
- cp <numa_install_dir>/lib/libnuma.so <cross_install_dir>/gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.2/
+ cp <numa_install_dir>/include/numa*.h <cross_install_dir>/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/aarch64-linux-gnu/libc/usr/include/
+ cp <numa_install_dir>/lib/libnuma.a <cross_install_dir>/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.3.0/
+ cp <numa_install_dir>/lib/libnuma.so <cross_install_dir>/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.3.0/
.. _configure_and_cross_compile_dpdk_build:
-Cross Compiling DPDK using Meson
---------------------------------
+Cross Compiling DPDK
+--------------------
+
+Meson depends on pkgconfig to find the dependencies.
+The package ``pkg-config-aarch64-linux-gnu`` is required for aarch64.
+To install it in Ubuntu::
+
+ sudo apt-get install pkg-config-aarch64-linux-gnu
To cross-compile DPDK on a desired target machine we can use the following
command::
meson arm64-build --cross-file config/arm/arm64_armv8_linux_gcc
ninja -C arm64-build
-
-Configure and Cross Compile DPDK using Make
--------------------------------------------
-To configure a build, choose one of the target configurations, like arm64-dpaa-linux-gcc and arm64-thunderx-linux-gcc.
-
-.. code-block:: console
-
- make config T=arm64-armv8a-linux-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
-
-.. 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:`augment_the_cross_toolchain_with_numa_support` was skipped therefore the toolchain was not
- augmented with NUMA support.
-
- 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"