make-cross-ovs.sh

Helper script to cross-compile and install Open vSwitch for the Arm Compute Complex (ACC) of the Intel® IPU E2100.

Build flow

Building and installing OVS is the first step in building P4 Control Plane for the IPU E2100.

Once OVS is built, you can use the config-cross-recipe.sh script to configure the next stage of the build, and the cmake command to compete it.

Syntax

./scripts/es2k/make-cross-ovs.sh \
    [--help|-h]  \
    [--dry-run|-n] \
    [--build=BLDDIR | -B BLDDIR] \
    [--prefix=PREFIX | -P PREFIX] \
    [--toolchain=TOOLFILE | -T TOOLFILE ] \
    [--jobs=NJOBS | -j NJOBS]

Command-line parameters

General

--dry-run, -n: Displays the parameters that will be passed to CMake, and exits.
--help, -h: Displays usage information and exits.

Paths

--build=BLDDIR, -B BLDDIR

Directory that CMake will use to perform the build. Will be created if it does not exist.

Specifies the value of the -B CMake option. Can be used to create separate build directories for native and cross-compiled builds. Defaults to ovs/build.

--prefix=PREFIX, -P PREFIX (see note)

Directory in which OVS will be installed. Will be created if it does not exist.

Specifies the value of the CMAKE_INSTALL_PREFIX variable when building P4 Control Plane. Defaults to //opt/ovs.

--toolchain=FILE, -T FILE

Path to the CMake toolchain file.

Specifies the value of the CMAKE_TOOLCHAIN_FILE variable. Defaults to the value of the CMAKE_TOOLCHAIN_FILE environment variable.

Note

// at the beginning of the directory path will be replaced with the sysroot directory path.

Options

--jobs=NJOBS, -j NJOBS

Number of build threads.

Specifies the value of the -j CMake option. Defaults to 8 threads.

Environment variables

CMAKE_TOOLCHAIN_FILE: Path to the CMake toolchain file to be used. Specifies the value of the CMAKE_TOOLCHAIN_FILE variable. May be overridden by --toolchain=TOOLFILE. Must be defined.
SDKTARGETSYSROOT: Path to the system root (sysroot) directory for the ACC. Must be defined.