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CrossCompileSetup.md

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Cross Compilation with the Qualcomm Flight Pro SDK

Setup the environment

Install CMake 3.3.0 or higher and add it to your path.

Set the environment variables:

Set the location to where the SDK will be installed: export SDKROOT=<sdk-install-location>
ex. export SDKROOT=/local/mnt/workspace/excelsior-sdk

Set the location of the SDK installer:
export SDKINSTALLER=<sdk-installer-location>
the location should be the directory where it has the SDK installer
ex. if the location is /local/mnt/workspace/images/sdk/, it should contains

oecore-x86_64-aarch64-toolchain-nodistro.0.host.manifest
oecore-x86_64-aarch64-toolchain-nodistro.0.target.manifest
oecore-x86_64-aarch64-toolchain-nodistro.0.sh

Set the following environment variable:
export SDKINSTALLER=/local/mnt/workspace/images/sdk

Installing the SDK

The SDK is part of the latest release builds

mkdir ${SDKROOT}
${SDKINSTALLER}/oecore-x86_64-aarch64-toolchain-nodistro.0.sh -y -D -d ${SDKROOT}
source ./scripts/sdk-fixup.sh ${SDKROOT}

The scripts to set the environment are incorrect for multiarch in Yocto Jethro. A new script is created named environment-setup-armv7a-vfp-oemllib32-linux that is consistent with the toolchain. The sdk-fixup.sh script creates this file.

Setup workspace environement for building 32-bit applications

The current SDK only supports building 32-bit application.

. ${SDKROOT}/environment-setup-armv7a-vfp-oemllib32-linux
OR source ${SDKROOT}/environment-setup-armv7a-vfp-oemllib32-linux

Test the environment

CMake

Install CMake and add it to your path.

cd examples/cross_compile/cmake
make cross

Autotools

cd examples/cross_compile/autotools
./bootstrap-cross.sh
make