i.MX Processors中的主题 Re: Cross Compilation of opencv

Cross Compilation of opencv

bandarulavanya — Mon, 03 Apr 2017 11:07:24 GMT

Hi All,

I need to cross compile opencv for my application. It's compiling properly with arm-fsl-linux-gnueabi, arm-linux but i need for "arm-poky-linux-gnueabi" need to use with yocto setup.

But i am getting following errors even with yocto setup or individual if i am using arm-poky-linux-gnueabi , If any one knows please help me to sort it out.

Log attached below:

divya@FSETBLR1LX038:~/opencv/OPENCV/new/bui_lav$ cmake -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake ../opencv-2.4.9
-- The CXX compiler identification is GNU 4.9.1
-- The C compiler identification is GNU 4.9.1
-- Check for working CXX compiler: /opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
-- Check for working CXX compiler: /opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ -- broken
CMake Error at /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake:54 (message):
The C++ compiler
"/opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++"
is not able to compile a simple test program.

It fails with the following output:

Change Dir: /home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/make "cmTryCompileExec192489027/fast"

/usr/bin/make -f CMakeFiles/cmTryCompileExec192489027.dir/build.make
CMakeFiles/cmTryCompileExec192489027.dir/build

make[1]: Entering directory
`/home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeTmp'

/usr/bin/cmake -E cmake_progress_report
/home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeTmp/CMakeFiles 1

Building CXX object
CMakeFiles/cmTryCompileExec192489027.dir/testCXXCompiler.cxx.o

/opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
-o CMakeFiles/cmTryCompileExec192489027.dir/testCXXCompiler.cxx.o -c
/home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeTmp/testCXXCompiler.cxx

Linking CXX executable cmTryCompileExec192489027

/usr/bin/cmake -E cmake_link_script
CMakeFiles/cmTryCompileExec192489027.dir/link.txt --verbose=1

/opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
CMakeFiles/cmTryCompileExec192489027.dir/testCXXCompiler.cxx.o -o
cmTryCompileExec192489027 -rdynamic

/opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.9.1/ld:
error: cmTryCompileExec192489027 uses VFP register arguments,
CMakeFiles/cmTryCompileExec192489027.dir/testCXXCompiler.cxx.o does not

/opt/poky/1.7/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.9.1/ld:
failed to merge target specific data of file
CMakeFiles/cmTryCompileExec192489027.dir/testCXXCompiler.cxx.o

collect2: error: ld returned 1 exit status

make[1]: *** [cmTryCompileExec192489027] Error 1

make[1]: Leaving directory
`/home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeTmp'

make: *** [cmTryCompileExec192489027/fast] Error 2

CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:56 (project)

-- Configuring incomplete, errors occurred!
See also "/home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeOutput.log".
See also "/home/divya/opencv/OPENCV/new/bui_lav/CMakeFiles/CMakeError.log".
divya@FSETBLR1LX038:~/opencv/OPENCV/new/bui_lav$

NOTE:

the command for configure:

cmake -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake ../opencv-2.4.9

toochain.cmake contains:

----------------------------------------------------

set( CMAKE_SYSTEM_NAME Linux )
set( CMAKE_SYSTEM_PROCESSOR arm )
set( CMAKE_C_COMPILER arm-poky-linux-gnueabi-gcc )
set( CMAKE_CXX_COMPILER arm-poky-linux-gnueabi-g++ )

Thanks & Regards,

Lavanya

Re: Cross Compilation of opencv

Bio_TICFSL — Wed, 05 Apr 2017 15:15:54 GMT

Hi Bandaru

It looks like the issue is on Cmake, , however apparently there was a change related to C++11 standard and you need to manually edit CMakeLists.txt to change some flag as-std=c++* to -std=gnu++* or CMAKE_C_FLAGS "-mfloat-abi=hard" when compiling any library. I suggested to try latest 4.1.15_2.0.0 BSP that support Gcc 5.3.0 toolchain.

Hope this helps

Re: Cross Compilation of opencv

sandip_gokani — Fri, 22 Nov 2019 11:06:31 GMT

Hi Bandaru,

In my case, it is compiling properly with "arm-poky-linux-gnueabi", but it gives same error with "arm-fsl-linux-gnueabi".

Error:

cmake: /usr/local/lib/libcurl.so.4: no version information available (required by cmake)
-- The CXX compiler identification is unknown
-- The C compiler identification is unknown
-- Check for working CXX compiler: /opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi-g++
-- Check for working CXX compiler: /opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi-g++ -- broken
CMake Error at /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake:54 (message):
The C++ compiler
"/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi-g++"
is not able to compile a simple test program.

It fails with the following output:

Change Dir: /home/sandip/HirenSir_Opencv/opencv_different_toolchain/opencv-2.4.9/build/CMakeFiles/CMakeTmp

Run Build Command:/usr/bin/make "cmTryCompileExec3834116465/fast"

/usr/bin/make -f CMakeFiles/cmTryCompileExec3834116465.dir/build.make
CMakeFiles/cmTryCompileExec3834116465.dir/build

make[1]: Entering directory
`/home/sandip/HirenSir_Opencv/opencv_different_toolchain/opencv-2.4.9/build/CMakeFiles/CMakeTmp'

/usr/bin/cmake -E cmake_progress_report
/home/sandip/HirenSir_Opencv/opencv_different_toolchain/opencv-2.4.9/build/CMakeFiles/CMakeTmp/CMakeFiles
1

/usr/bin/cmake: /usr/local/lib/libcurl.so.4: no version information
available (required by /usr/bin/cmake)

Building CXX object
CMakeFiles/cmTryCompileExec3834116465.dir/testCXXCompiler.cxx.o

/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi-g++
-march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a7
--sysroot=/opt/freescale/ltib -fpermissive -o
CMakeFiles/cmTryCompileExec3834116465.dir/testCXXCompiler.cxx.o -c
/home/sandip/HirenSir_Opencv/opencv_different_toolchain/opencv-2.4.9/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx

cc1plus: error: bad value (cortex-a7) for -mtune switch

make[1]: ***
[CMakeFiles/cmTryCompileExec3834116465.dir/testCXXCompiler.cxx.o] Error 1

make[1]: Leaving directory
`/home/sandip/HirenSir_Opencv/opencv_different_toolchain/opencv-2.4.9/build/CMakeFiles/CMakeTmp'

make: *** [cmTryCompileExec3834116465/fast] Error 2

CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:56 (project)

-- Configuring incomplete, errors occurred!

Can you help me on this? Can you send me / attavched here, a Cmake file?