Dockerfiles for cross-compiling/native-compiling and testing TIM-VX backend on x86_64 Ubuntu 20.04

Dockerfile

FROM yuentau/ocv_ubuntu:20.04

WORKDIR /opt
RUN git clone https://github.com/opencv/opencv
RUN cmake -B opencv-build -D WITH_TIMVX=ON opencv
RUN cmake --build opencv-build -j 8

# unit tests
# 1. setup env var
# 2. run tests
WORKDIR /opt
# Setup opencv_extra
RUN git clone -b 4.x --single-branch https://github.com/opencv/opencv_extra
ENV OPENCV_TEST_DATA_PATH=/opt/opencv_extra/testdata
# Setup for TIM-VX
ENV VIVANTE_SDK_DIR=/opt/opencv-build/3rdparty/libtim-vx/TIM-VX-bb164d7d95610b0ab40f120fb248443ae60d5f87/prebuilt-sdk/x86_64_linux
ENV LD_LIBRARY_PATH=$VIVANTE_SDK_DIR/lib
# Unit tests run on NPU only
RUN ./opencv-build/bin/opencv_test_dnn --gtest_filter="Test_Int8_layers.*/1"

Dockerfile.crossplatform

FROM yuentau/ocv_ubuntu:20.04

WORKDIR /opt
# Download toolchain
# alternative link: https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch64-linux-gnu/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
RUN wget https://cnbj1.fds.api.xiaomi.com/mace/third-party/gcc-linaro/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz && \
    tar xvf gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu.tar.xz
ENV AARCH64_TOOLCHAIN_ROOT=/opt/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu
# Download source code
RUN git clone https://github.com/opencv/opencv
# Download and extract VIVANTE SDK
RUN wget https://github.com/VeriSilicon/TIM-VX/releases/download/v1.1.34.fix/aarch64_A311D_6.4.8.tgz && \
    tar xvf aarch64_A311D_6.4.8.tgz
ENV VIVANTE_SDK_DIR=/opt/aarch64_A311D_6.4.8
# Configure for cross compilation.
# NOTE: CMAKE_SKIP_RPATH is turned off to link executable binaries correctly.
#.      You may need to append option `NO_CMAKE_FIND_ROOT_PATH` into find_library in line 9 at file `opencv/cmake/OpenCVFindTIMVX.cmake` to have libraries found correctly.
RUN cmake -B opencv-build \
          -D CMAKE_TOOLCHAIN_FILE=/opt/opencv/platforms/linux/aarch64-gnu.toolchain.cmake \
          -D CMAKE_C_COMPILER=${AARCH64_TOOLCHAIN_ROOT}/bin/aarch64-linux-gnu-gcc \
          -D CMAKE_CXX_COMPILER=${AARCH64_TOOLCHAIN_ROOT}/bin/aarch64-linux-gnu-g++ \
          -D CMAKE_LINKER=${AARCH64_TOOLCHAIN_ROOT}/bin/aarch64-linux-gnu-ld \
          -D CMAKE_AR=${AARCH64_TOOLCHAIN_ROOT}/bin/aarch64-linux-gnu-ar \
          -D CMAKE_SKIP_RPATH=OFF \
          -D WITH_OPENCL=OFF \
          -D WITH_TIMVX=ON opencv
# Compile
RUN cmake --build opencv-build -j 8

Hello @tglander , could you file an issue in the opencv repository so that I can take a look for you? BTW, I have no problems if compiling natively on the board. Looks like it is a cross compilation problem to me.

thanks, I will file an issue.

Yes it is indeed in the Docker.crossplatform case. So the question is, would it work natively, if the propopsed change is applied there as well (did not test).