cross compile opencv-3.4.3 for arm
Hello all,
I am trying to cross compile openCV 3.4.3 for my arm toolchain by following the steps as mentioned in https://docs.opencv.org/3.4.3/d0/d76/tutorial_arm_crosscompile_with_cmake.html
Following are the steps-
1) unzip opencv-3.4.3.zip
2) cd opencv-3.4.3/
3) git clone https://github.com/opencv/opencv.git
2) cd opencv
4) mkdir build
5) cd build
6) All my tool-chain binaries are present in /usr/local/arm_linux_4.3/usr/bin
7) export PATH=/usr/local/arm_linux_4.3/usr/bin:$PATH
8) cmake -DCMAKE_INSTALL_PREFIX:PATH=/home/myUser/opencv-3.4.3/build -DCMAKE_INSTALL_PREFIX:PATH=/home/realand/opencv/build/install -DCMAKE_C_COMPILER=arm-linux-uclibcgnueabi-gcc -DCMAKE_CXX_COMPILER=arm-linux-uclibcgnueabi-g++ -DCMAKE_LINKER=arm-linux-uclibcgnueabi-ld -DCMAKE_AR=arm-linux-uclibcgnueabi-ar -DSOFTFP=ON -DCMAKE_TOOLCHAIN_FILE=/home/myUser/opencv-3.4.3/platforms/linux/arm-gnueabi.toolchain.cmake /home/myUser/opencv-3.4.3-DCMAKE_TOOLCHAIN_FILE=/home/realand/opencv/platforms/linux/arm-gnueabi.toolchain.cmake /home/realand/opencv
But I am getting too many errors in the above step.
This is the first time I am using cmake to cross compile a library. So I am not at all familiar with it's working.
Can some one guide me as working.
Now that I am getting so many errors how do I proceed?
Following is the output-
-- The CXX compiler identification is GNU 5.3.4
-- The C compiler identification is GNU 4.3.4
-- Check for working CXX compiler: /usr/local/arm_linux_4.3/usr/bin/arm-linux-uclibcgnueabi-g++
-- Check for working CXX compiler: /usr/local/arm_linux_4.3/usr/bin/arm-linux-uclibcgnueabi-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working C compiler: /usr/local/arm_linux_4.3/usr/bin/arm-linux-uclibcgnueabi-gcc
-- Check for working C compiler: /usr/local/arm_linux_4.3/usr/bin/arm-linux-uclibcgnueabi-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Performing Test HAVE_CXX11 (check file: cmake/checks/cxx11.cpp)
-- Performing Test HAVE_CXX11 - Failed
-- Found PythonInterp: /usr/bin/python2.7 (found suitable version "2.7.6", minimum required is "2.7")
-- Could NOT find PythonLibs (missing: PYTHON_LIBRARIES PYTHON_INCLUDE_DIRS) (Required is at least version "2.7")
-- Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV)
-- If you want to how enable Python/Numpy support, set the following variables:
-- PYTHON2_INCLUDE_PATH
-- PYTHON2_LIBRARIES (optional on Unix-like systems)
-- PYTHON2_NUMPY_INCLUDE_DIRS
-- PYTHON3_INCLUDE_PATH
-- PYTHON3_LIBRARIES (optional on Unix-like systems)
-- PYTHON3_NUMPY_INCLUDE_DIRS
-- Found PythonInterp: /usr/bin/python3.4 (found suitable version "3.4", minimum required is "3.4")
-- Could NOT find PythonLibs (missing: PYTHON_LIBRARIES) (Required is at least version "3.4")
-- Cannot probe for Python/Numpy support (because we are cross-compiling OpenCV)
-- If you want to make cmake correctly point to '/usr/local/arm_linux_4.3' where my arm tool-chain enable Python/Numpy support, set the following variables:
-- PYTHON2_INCLUDE_PATH
-- PYTHON2_LIBRARIES (optional on Unix-like systems)
-- PYTHON2_NUMPY_INCLUDE_DIRS
-- PYTHON3_INCLUDE_PATH
-- PYTHON3_LIBRARIES (optional on Unix-like systems)
-- PYTHON3_NUMPY_INCLUDE_DIRS
-- Looking for ccache - not found
-- Performing Test HAVE_CXX_FSIGNED_CHAR
-- Performing Test HAVE_CXX_FSIGNED_CHAR - Failed
-- Performing Test HAVE_C_FSIGNED_CHAR
-- Performing Test HAVE_C_FSIGNED_CHAR - Failed
-- Performing Test HAVE_CXX_W
-- Performing Test HAVE_CXX_W - Failed
-- Performing Test HAVE_C_W
-- Performing Test HAVE_C_W - Failed
-- Performing Test HAVE_CXX_WALL
-- Performing Test HAVE_CXX_WALL - Failed
-- Performing Test HAVE_C_WALL
-- Performing Test HAVE_C_WALL - Failed
-- Performing Test HAVE_CXX_WERROR_RETURN_TYPE
-- Performing Test HAVE_CXX_WERROR_RETURN_TYPE - Failed
-- Performing Test HAVE_C_WERROR_RETURN_TYPE
-- Performing Test HAVE_C_WERROR_RETURN_TYPE - Failed
-- Performing Test HAVE_CXX_WERROR_NON_VIRTUAL_DTOR
-- Performing Test HAVE_CXX_WERROR_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_C_WERROR_NON_VIRTUAL_DTOR
-- Performing Test HAVE_C_WERROR_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WERROR_ADDRESS
-- Performing Test HAVE_CXX_WERROR_ADDRESS - Failed
-- Performing Test HAVE_C_WERROR_ADDRESS
-- Performing Test HAVE_C_WERROR_ADDRESS - Failed
-- Performing Test HAVE_CXX_WERROR_SEQUENCE_POINT
-- Performing Test HAVE_CXX_WERROR_SEQUENCE_POINT - Failed
-- Performing Test HAVE_C_WERROR_SEQUENCE_POINT
-- Performing Test HAVE_C_WERROR_SEQUENCE_POINT - Failed
-- Performing Test HAVE_CXX_WFORMAT
-- Performing Test HAVE_CXX_WFORMAT - Failed
-- Performing Test HAVE_C_WFORMAT
-- Performing Test HAVE_C_WFORMAT - Failed
-- Performing Test HAVE_CXX_WERROR_FORMAT_SECURITY
-- Performing Test HAVE_CXX_WERROR_FORMAT_SECURITY - Failed
-- Performing Test HAVE_C_WERROR_FORMAT_SECURITY
-- Performing Test HAVE_C_WERROR_FORMAT_SECURITY - Failed
-- Performing Test HAVE_CXX_WMISSING_DECLARATIONS
-- Performing Test HAVE_CXX_WMISSING_DECLARATIONS - Failed
-- Performing Test HAVE_C_WMISSING_DECLARATIONS
-- Performing Test HAVE_C_WMISSING_DECLARATIONS - Failed
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES
-- Performing Test HAVE_CXX_WMISSING_PROTOTYPES - Failed
-- Performing Test HAVE_C_WMISSING_PROTOTYPES
-- Performing Test HAVE_C_WMISSING_PROTOTYPES - Failed
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES
-- Performing Test HAVE_CXX_WSTRICT_PROTOTYPES - Failed
-- Performing Test HAVE_C_WSTRICT_PROTOTYPES
-- Performing Test HAVE_C_WSTRICT_PROTOTYPES - Failed
-- Performing Test HAVE_CXX_WUNDEF
-- Performing Test HAVE_CXX_WUNDEF - Failed
-- Performing Test HAVE_C_WUNDEF
-- Performing Test HAVE_C_WUNDEF - Failed
-- Performing Test HAVE_CXX_WINIT_SELF
-- Performing Test HAVE_C_WINIT_SELF
-- Performing Test HAVE_C_WINIT_SELF - Failed
-- Performing Test HAVE_CXX_WPOINTER_ARITH
-- Performing Test HAVE_CXX_WPOINTER_ARITH - Failed
-- Performing Test HAVE_C_WPOINTER_ARITH
-- Performing Test HAVE_C_WPOINTER_ARITH - Failed
-- Performing Test HAVE_CXX_WSHADOW
-- Performing Test HAVE_CXX_WSHADOW - Failed
-- Performing Test HAVE_C_WSHADOW
-- Performing Test HAVE_C_WSHADOW - Failed
-- Performing Test HAVE_CXX_WSIGN_PROMO
-- Performing Test HAVE_CXX_WSIGN_PROMO - Failed
-- Performing Test HAVE_C_WSIGN_PROMO
-- Performing Test HAVE_C_WSIGN_PROMO - Failed
-- Performing Test HAVE_CXX_WUNINITIALIZED
-- Performing Test HAVE_CXX_WUNINITIALIZED - Failed
-- Performing Test HAVE_C_WUNINITIALIZED
-- Performing Test HAVE_C_WUNINITIALIZED - Failed
-- Performing Test HAVE_CXX_WNO_NARROWING
-- Performing Test HAVE_CXX_WNO_NARROWING - Failed
-- Performing Test HAVE_C_WNO_NARROWING
-- Performing Test HAVE_C_WNO_NARROWING - Failed
-- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR
-- Performing Test HAVE_CXX_WNO_DELETE_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR
-- Performing Test HAVE_C_WNO_DELETE_NON_VIRTUAL_DTOR - Failed
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
-- Performing Test HAVE_CXX_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS
-- Performing Test HAVE_C_WNO_UNNAMED_TYPE_TEMPLATE_ARGS - Failed
-- Performing Test HAVE_CXX_WNO_COMMENT
-- Performing Test HAVE_CXX_WNO_COMMENT - Failed
-- Performing Test HAVE_C_WNO_COMMENT
-- Performing Test HAVE_C_WNO_COMMENT - Failed
-- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION
-- Performing Test HAVE_CXX_FDIAGNOSTICS_SHOW_OPTION - Failed
-- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION
-- Performing Test HAVE_C_FDIAGNOSTICS_SHOW_OPTION - Failed
-- Performing Test HAVE_CXX_PTHREAD
-- Performing Test HAVE_CXX_PTHREAD - Failed
-- Performing Test HAVE_C_PTHREAD
-- Performing Test HAVE_C_PTHREAD - Failed
-- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER
-- Performing Test HAVE_CXX_FOMIT_FRAME_POINTER - Failed
-- Performing Test HAVE_C_FOMIT_FRAME_POINTER
-- Performing Test HAVE_C_FOMIT_FRAME_POINTER - Failed
-- Performing Test HAVE_CXX_FFUNCTION_SECTIONS
-- Performing Test HAVE_CXX_FFUNCTION_SECTIONS - Failed
-- Performing Test HAVE_C_FFUNCTION_SECTIONS
-- Performing Test HAVE_C_FFUNCTION_SECTIONS - Failed
-- Performing Test HAVE_CXX_FDATA_SECTIONS
-- Performing Test HAVE_CXX_FDATA_SECTIONS - Failed
-- Performing Test HAVE_C_FDATA_SECTIONS
-- Performing Test HAVE_C_FDATA_SECTIONS - Failed
-- Performing Test HAVE_CXX_MFPU_VFPV3
-- Performing Test HAVE_CXX_MFPU_VFPV3 - Failed
-- VFPV3 is installed?not supported by C++ compiler
-- Performing Test HAVE_CPU_NEON_SUPPORT (check file: cmake/checks/cpu_neon.cpp)
-- Performing Test HAVE_CPU_NEON_SUPPORT - Failed
-- Performing Test HAVE_CXX_MFPU_NEON (check file: cmake/checks/cpu_neon.cpp)
-- Performing Test HAVE_CXX_MFPU_NEON - Failed
-- NEON is not supported by C++ compiler
-- Performing Test HAVE_CPU_FP16_SUPPORT (check file: cmake/checks/cpu_fp16.cpp)
-- Performing Test HAVE_CPU_FP16_SUPPORT - Failed
-- Performing Test HAVE_CXX_MFPU_NEON_FP16 (check file: cmake/checks/cpu_fp16.cpp)
-- Performing Test HAVE_CXX_MFPU_NEON_FP16 - Failed
-- FP16 is not supported by C++ compiler
-- Performing Test HAVE_CPU_BASELINE_FLAGS
-- Performing Test HAVE_CPU_BASELINE_FLAGS - Failed
-- Configuring incomplete, errors occurred!
See also "/home/realand/opencv/build/CMakeFiles/CMakeOutput.log".
See also "/home/realand/opencv/build/CMakeFiles/CMakeError.log".
P.S- Though mentioned in the tutorial, I skipped the step "sudo apt-get install gcc-arm-linux-gnueabi" because I already have a tool chain installed in '/usr/local/arm_linux_4.3' folder.
