Cross compiling with openCV using generated SDK

[cduarte0306]

Hi all,

I am using scarthsgap for the Orin Nano, and I built the image and SDK. For some reason I am unable to find the OpenCV package due t the lack of CUDA on my SDK.

What am I missing?

I am using the following installed:

IMAGE_INSTALL += " \
    packagegroup-core-boot \
    bash \
    openssh \
    nano \
    hostapd \
    dnsmasq \
    iproute2 \
    ethtool \
    net-tools \
    tcpdump \
    procps \
    systemd \
    busybox \
    opencv \
    opencv-samples \
    gstreamer1.0 \
    gstreamer1.0-plugins-base \
    gstreamer1.0-plugins-good \
    gstreamer1.0-plugins-bad \
    gstreamer1.0-plugins-ugly \
    gstreamer1.0-libav \
    gstreamer1.0-plugins-tegra \
    gstreamer1.0-plugins-tegra-binaryonly \
    gdbserver \
    boost \
    dtc \
    networkmanager \
    networkmanager-nmcli \
    wpa-supplicant \
    iw \
    wireless-regdb-static \
    linux-firmware \
    rc-car-eth-setup \
    libgpiod \
    libgpiod-tools \
    python3 \
    python3-flask \
    python3-gunicorn \
    swupdate \
    kernel-module-spidev \
    spidev-test \
    update-server \
    update-web-server \
    rc-car-nav \
    python3-core \
    python3-flask \
    python3-werkzeug \
    python3-jinja2 \
    python3-itsdangerous \
    python3-click \
    avahi-daemon \
    avahi-utils \
    v4l-utils \
    tensorrt-samples \
    cudnn-samples \
    tegra-mmapi \
    tegra-mmapi-dev \
"

My CMakeLists:

cmake_minimum_required(VERSION 3.10)

# Make sure we enable both C and C++
project(rc-car-nav LANGUAGES C CXX)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Find Boost for your app (used in src/)
find_package(Boost REQUIRED COMPONENTS system filesystem thread)

# Add subdirectories
add_subdirectory(external/embedded-cli)   # builds the static lib: embedded_cli_lib
add_subdirectory(src)                     # builds your app: rc-car-nav

Error:

[cmake]   Policy CMP0146 is not set: The FindCUDA module is removed.  Run "cmake
[cmake]   --help-policy CMP0146" for policy details.  Use the cmake_policy command to
[cmake]   set the policy and suppress this warning.
[cmake] 
[cmake] Call Stack (most recent call first):
[cmake]   /opt/poky/5.0.11/sysroots/armv8a-poky-linux/usr/lib/cmake/opencv4/OpenCVConfig.cmake:108 (find_host_package)
[cmake]   CMakeLists.txt:11 (find_package)
[cmake] This warning is for project developers.  Use -Wno-dev to suppress it.
[cmake] 
[cmake] CMake Error at /opt/poky/5.0.11/sysroots/x86_64-pokysdk-linux/usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
[cmake]   Could NOT find CUDA (missing: CUDA_TOOLKIT_ROOT_DIR CUDA_NVCC_EXECUTABLE
[cmake]   CUDA_INCLUDE_DIRS CUDA_CUDART_LIBRARY) (Required is exact version "12.6")
[cmake] Call Stack (most recent call first):
[cmake]   /opt/poky/5.0.11/sysroots/x86_64-pokysdk-linux/usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE)
[cmake]   /opt/poky/5.0.11/sysroots/x86_64-pokysdk-linux/usr/share/cmake-3.28/Modules/FindCUDA.cmake:1291 (find_package_handle_standard_args)
[cmake]   /opt/poky/5.0.11/sysroots/armv8a-poky-linux/usr/lib/cmake/opencv4/OpenCVConfig.cmake:86 (find_package)
[cmake]   /opt/poky/5.0.11/sysroots/armv8a-poky-linux/usr/lib/cmake/opencv4/OpenCVConfig.cmake:108 (find_host_package)
[cmake]   CMakeLists.txt:11 (find_package)
[cmake] 
[cmake] 
[cmake] -- Configuring incomplete, errors occurred!
[proc] The command: /opt/poky/5.0.11/sysroots/x86_64-pokysdk-linux/usr/bin/cmake -S /home/cduarte0306/repos/RC-Car-navigation-and-control -B /home/cduarte0306/repos/RC-Car-navigation-and-control/build -G "Unix Makefiles" exited with code: 1

[madisongh]

If you're building your SDK using the bitbake -c populate_sdk <image-name> approach, make sure you have added:

TOOLCHAIN_HOST_TASK += "nativesdk-packagegroup-cuda-sdk-host"

to your image recipe, so the host side of the CUDA tools get included.