ceph/src/seastar/dpdk/doc/guides/sample_app_ug/compiling.rst

   1 ..  SPDX-License-Identifier: BSD-3-Clause
   2     Copyright(c) 2015 Intel Corporation.
   3
   4 Compiling the Sample Applications
   5 =================================
   6
   7 This section explains how to compile the DPDK sample applications.
   8
   9 To compile all the sample applications
  10 --------------------------------------
  11
  12 Set the path to DPDK source code if its not set:
  13
  14     .. code-block:: console
  15
  16         export RTE_SDK=/path/to/rte_sdk
  17
  18 Go to DPDK source:
  19
  20     .. code-block:: console
  21
  22         cd $RTE_SDK
  23
  24 Build DPDK:
  25
  26    .. code-block:: console
  27
  28         make defconfig
  29         make
  30
  31 Build the sample applications:
  32
  33    .. code-block:: console
  34
  35        export RTE_TARGET=build
  36        make -C examples
  37
  38 For other possible ``RTE_TARGET`` values and additional information on
  39 compiling see
  40 :ref:`Compiling DPDK on Linux <linux_gsg_compiling_dpdk>` or
  41 :ref:`Compiling DPDK on FreeBSD <building_from_source>`.
  42 Applications are output to: ``$RTE_SDK/examples/app-dir/build`` or
  43 ``$RTE_SDK/examples/app-dir/$RTE_TARGET``.
  44
  45
  46 In the example above the compiled application is written to the ``build`` subdirectory.
  47 To have the applications written to a different location,
  48 the ``O=/path/to/build/directory`` option may be specified in the make command.
  49
  50     .. code-block:: console
  51
  52        make O=/tmp
  53
  54 To build the applications for debugging use the ``DEBUG`` option.
  55 This option adds some extra flags, disables compiler optimizations and
  56 sets verbose output.
  57
  58     .. code-block:: console
  59
  60        make DEBUG=1
  61
  62
  63 To compile a single application
  64 -------------------------------
  65
  66 Set the path to DPDK source code:
  67
  68     .. code-block:: console
  69
  70         export RTE_SDK=/path/to/rte_sdk
  71
  72 Go to DPDK source:
  73
  74     .. code-block:: console
  75
  76        cd $RTE_SDK
  77
  78 Build DPDK:
  79
  80     .. code-block:: console
  81
  82         make defconfig
  83         make
  84
  85 Go to the sample application directory. Unless otherwise specified the sample
  86 applications are located in ``$RTE_SDK/examples/``.
  87
  88
  89 Build the application:
  90
  91     .. code-block:: console
  92
  93         export RTE_TARGET=build
  94         make
  95
  96 To cross compile the sample application(s)
  97 ------------------------------------------
  98
  99 For cross compiling the sample application(s), please append 'CROSS=$(CROSS_COMPILER_PREFIX)' to the 'make' command.
 100 In example of AARCH64 cross compiling:
 101
 102     .. code-block:: console
 103
 104         export RTE_TARGET=build
 105         export RTE_SDK=/path/to/rte_sdk
 106         make -C examples CROSS=aarch64-linux-gnu-
 107                or
 108         make CROSS=aarch64-linux-gnu-