“Buildroot trouble shootings”的版本间的差异

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（以“1. toolchain-external-custom Configuring Incorrect selection of kernel headers: expected 4.10.x, got 4.20.x => toolchain 配置错误, modify configd/defconfig <...”为内容创建页面）
 
 
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第23行： 第23行：
 
<source lang="java">
 
<source lang="java">
 
BR2_DL_DIR="/data/download_cache/buildroot"
 
BR2_DL_DIR="/data/download_cache/buildroot"
 +
</source>
 +
 +
3. add OpenCV4 into rootfs
 +
vi package/opencv4/opencv4.mk
 +
<source lang="java">
 +
#with Qt5
 +
ifeq ($(BR2_PACKAGE_OPENCV4_WITH_QT5),y)
 +
OPENCV4_CONF_OPTS += -DWITH_QT=5
 +
OPENCV4_DEPENDENCIES += qt5base
 +
else
 +
OPENCV4_CONF_OPTS += -DWITH_QT=OFF
 +
endif
 +
 +
#add gapi
 +
OPENCV4_CONF_OPTS += -DBUILD_opencv_gapi=ON
 +
 +
#with OPENCL
 +
OPENCV4_CONF_OPTS += \
 +
    -DWITH_OPENCL=ON \
 +
    -DWITH_OPENCL_SVM=OFF \
 +
    -DWITH_OPENCLAMDBLAS=ON \
 +
    -DWITH_OPENCLAMDFFT=ON
 +
 +
</source>
 +
in .config [[文件:Opencv4.png]]
 +
<source lang="java">
 +
BR2_PACKAGE_OPENCV4=y
 +
#
 +
# OpenCV modules
 +
#
 +
BR2_PACKAGE_OPENCV4_LIB_CALIB3D=y
 +
BR2_PACKAGE_OPENCV4_LIB_DNN=y
 +
BR2_PACKAGE_OPENCV4_LIB_FEATURES2D=y
 +
BR2_PACKAGE_OPENCV4_LIB_FLANN=y
 +
BR2_PACKAGE_OPENCV4_LIB_HIGHGUI=y
 +
BR2_PACKAGE_OPENCV4_WITH_QT5=y
 +
 +
#
 +
# opengl support needs an OpenGL provider
 +
#
 +
BR2_PACKAGE_OPENCV4_LIB_IMGCODECS=y
 +
BR2_PACKAGE_OPENCV4_LIB_IMGPROC=y
 +
BR2_PACKAGE_OPENCV4_LIB_ML=y
 +
BR2_PACKAGE_OPENCV4_LIB_OBJDETECT=y
 +
BR2_PACKAGE_OPENCV4_LIB_PHOTO=y
 +
BR2_PACKAGE_OPENCV4_LIB_SHAPE=y
 +
BR2_PACKAGE_OPENCV4_LIB_STITCHING=y
 +
# BR2_PACKAGE_OPENCV4_LIB_SUPERRES is not set
 +
# BR2_PACKAGE_OPENCV4_LIB_TS is not set
 +
BR2_PACKAGE_OPENCV4_LIB_VIDEOIO=y
 +
BR2_PACKAGE_OPENCV4_LIB_VIDEO=y
 +
BR2_PACKAGE_OPENCV4_LIB_VIDEOSTAB=y
 +
#
 +
# 3rd party support
 +
#
 +
BR2_PACKAGE_OPENCV4_WITH_FFMPEG=y
 +
BR2_PACKAGE_OPENCV4_WITH_GSTREAMER1=y
 +
BR2_PACKAGE_OPENCV4_JPEG2000_NONE=y
 +
# BR2_PACKAGE_OPENCV4_JPEG2000_WITH_JASPER is not set
 +
# BR2_PACKAGE_OPENCV4_JPEG2000_WITH_OPENJPEG is not set
 +
# BR2_PACKAGE_OPENCV4_WITH_JPEG is not set
 +
# BR2_PACKAGE_OPENCV4_WITH_PNG is not set
 +
BR2_PACKAGE_OPENCV4_WITH_PROTOBUF=y
 +
# BR2_PACKAGE_OPENCV4_WITH_TBB is not set
 +
# BR2_PACKAGE_OPENCV4_WITH_TIFF is not set
 +
BR2_PACKAGE_OPENCV4_WITH_V4L=y
 +
# BR2_PACKAGE_OPENCV4_WITH_WEBP is not set
 +
 
</source>
 
</source>

2023年6月29日 (四) 16:22的最后版本

1. toolchain-external-custom Configuring 

  Incorrect selection of kernel headers: expected 4.10.x, got 4.20.x

=> toolchain 配置错误, modify configd/defconfig 

BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu"
BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="aarch64-linux-gnu"
BR2_TOOLCHAIN_EXTERNAL_GCC_7=y
BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_10=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
BR2_TOOLCHAIN_EXTERNAL_CXX=y

To check kernel headers version of the toolchain:
cat /opt/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/libc/usr/include/linux/version.h 

#define LINUX_VERSION_CODE 264707 (=0x040a03)

Match the required version 4.10

2. Download package too slow
Use download_cache, add 

BR2_DL_DIR="/data/download_cache/buildroot"

3. add OpenCV4 into rootfs
vi package/opencv4/opencv4.mk 

#with Qt5
ifeq ($(BR2_PACKAGE_OPENCV4_WITH_QT5),y)
OPENCV4_CONF_OPTS += -DWITH_QT=5
OPENCV4_DEPENDENCIES += qt5base
else
OPENCV4_CONF_OPTS += -DWITH_QT=OFF
endif
 
#add gapi
OPENCV4_CONF_OPTS += -DBUILD_opencv_gapi=ON 
 
#with OPENCL
OPENCV4_CONF_OPTS += \
    -DWITH_OPENCL=ON \
    -DWITH_OPENCL_SVM=OFF \
    -DWITH_OPENCLAMDBLAS=ON \
    -DWITH_OPENCLAMDFFT=ON

in .config Opencv4.png 

BR2_PACKAGE_OPENCV4=y
#
# OpenCV modules
#
BR2_PACKAGE_OPENCV4_LIB_CALIB3D=y
BR2_PACKAGE_OPENCV4_LIB_DNN=y
BR2_PACKAGE_OPENCV4_LIB_FEATURES2D=y
BR2_PACKAGE_OPENCV4_LIB_FLANN=y
BR2_PACKAGE_OPENCV4_LIB_HIGHGUI=y
BR2_PACKAGE_OPENCV4_WITH_QT5=y
 
#
# opengl support needs an OpenGL provider
#
BR2_PACKAGE_OPENCV4_LIB_IMGCODECS=y
BR2_PACKAGE_OPENCV4_LIB_IMGPROC=y
BR2_PACKAGE_OPENCV4_LIB_ML=y
BR2_PACKAGE_OPENCV4_LIB_OBJDETECT=y
BR2_PACKAGE_OPENCV4_LIB_PHOTO=y
BR2_PACKAGE_OPENCV4_LIB_SHAPE=y
BR2_PACKAGE_OPENCV4_LIB_STITCHING=y
# BR2_PACKAGE_OPENCV4_LIB_SUPERRES is not set
# BR2_PACKAGE_OPENCV4_LIB_TS is not set
BR2_PACKAGE_OPENCV4_LIB_VIDEOIO=y
BR2_PACKAGE_OPENCV4_LIB_VIDEO=y
BR2_PACKAGE_OPENCV4_LIB_VIDEOSTAB=y
#
# 3rd party support
#
BR2_PACKAGE_OPENCV4_WITH_FFMPEG=y
BR2_PACKAGE_OPENCV4_WITH_GSTREAMER1=y
BR2_PACKAGE_OPENCV4_JPEG2000_NONE=y
# BR2_PACKAGE_OPENCV4_JPEG2000_WITH_JASPER is not set
# BR2_PACKAGE_OPENCV4_JPEG2000_WITH_OPENJPEG is not set
# BR2_PACKAGE_OPENCV4_WITH_JPEG is not set
# BR2_PACKAGE_OPENCV4_WITH_PNG is not set
BR2_PACKAGE_OPENCV4_WITH_PROTOBUF=y
# BR2_PACKAGE_OPENCV4_WITH_TBB is not set
# BR2_PACKAGE_OPENCV4_WITH_TIFF is not set
BR2_PACKAGE_OPENCV4_WITH_V4L=y
# BR2_PACKAGE_OPENCV4_WITH_WEBP is not set
来自“https://www.mywiki.cn/free6d1823/index.php?title=Buildroot_trouble_shootings&oldid=109135”