X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Flinux_gsg%2Fcross_build_dpdk_for_arm64.rst;h=8a1d0e88b0e49b7c0912ecc2bbf0a2a1310190ed;hb=94d31cd115b558a017544adea83770709bb3ff5c;hp=8f6c951dd8554b43257452652e5b10298a277301;hpb=0fc0edb9cbdb687d952f8296d8032663e924df18;p=dpdk.git 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 8f6c951dd8..8a1d0e88b0 100644 --- a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst +++ b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst @@ -16,19 +16,21 @@ Obtain the cross tool chain 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=$PATH:/gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/bin + tar -xvf gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz + export PATH=$PATH:/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/bin .. note:: @@ -65,20 +67,26 @@ 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. + 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 /include/numa*.h /gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/include/ - cp /lib/libnuma.a /gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.2/ - cp /lib/libnuma.so /gcc-arm-8.2-2019.01-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.2/ + cp /include/numa*.h /gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/aarch64-linux-gnu/libc/usr/include/ + cp /lib/libnuma.a /gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu/lib/gcc/aarch64-linux-gnu/8.3.0/ + cp /lib/libnuma.so /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:: @@ -91,45 +99,3 @@ 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= 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 /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 /include" EXTRA_LDFLAGS="-L/lib -lnuma"