的交叉编译OpenCV : Cmake配置过程中的错误
的交叉编译OpenCV : Cmake配置过程中的错误
提问于 2022-03-20 10:52:42
问题描述：
我试图用OpenCV支持在Ubuntu20.04LTSforAndroid (aarch64)上编译OpenCL 4.5.1 (因为股票OpenCV Android没有激活OpenCL支持)。我很大程度上追随了本教程涵盖OpenCV的交叉编译。。
当试图配置构建时，Cmake似乎无法正确创建/定位所有必需的文件夹，从而引发一个错误(参见下面的cmake输出)。
我怀疑这可能与Cmake难以正确识别ant安装有关(如Cmake输出中ant路径后面缺少的版本号所示)。
我已经通过Cmake标志为ANT可执行文件和Java文件夹设置了环境变量(参见下面的Cmake命令)。
当查看Cmake输出底部的错误消息时，很明显，创建必要的Android和/或Java文件夹存在一些问题。在检查modules/java/android_sdk/CMakeLists.txt (请参阅下面的摘录)时，我注意到变量OPENCV_JAVA_DIR可能应该在cmake配置的早期阶段设置。但是，当运行粘贴在下面的命令时，这个变量仍然是空的，因此cmake无法访问文件夹，因为路径不正确。
这些是运行cmake配置命令时变量的值：
-- OPENCV_JAVA_DIR = /opencv
-- ANDROID_EXECUTABLE = FALSE
-- ANDROID_BUILD_BASE_DIR =
-- OpenCV_BINARY_DIR= /home/flavio/Downloads/opencv/build_manual我的Cmake构建标志中是否有一些配置错误，或者是完全不同的错误？
谢谢你的帮助！
相关问题
到目前为止，我已尝试过所有建议的改变，但都没有成功。重新安装ant没有帮助，也没有创建指向/usr/share/ant/bin/ant in /usr/bin的可执行存储的符号链接。
使用 Command (在下载的opencv-源代码中的build文件夹中)：
cmake \
-DCMAKE_TOOLCHAIN_FILE=~/Android/Sdk/ndk/21.0.6113669/build/cmake/android.toolchain.cmake \
-DANDROID_TOOLCHAIN=clang++ \
-DANDROID_ABI=arm64-v8a \
-DANDROID_TARGET_SDK_VERSION=26 \
-DANDROID_MIN_SDK_VERSION=24 \
-DBUILD_JAVA=ON -DBUILD_FAT_JAVA_LIB=ON DBUILD_ZLIB=ON \
-D CMAKE_BUILD_TYPE=Release \
-D ANDROID_NATIVE_API_LEVEL=24 \
-DANDROID_COMPILE_SDK_VERSION=26 \
-D ANDROID_STL=c++_shared \
-D WITH_CUDA=OFF \
-D WITH_MATLAB=OFF \
-D BUILD_ANDROID_EXAMPLES=OFF -D BUILD_DOCS=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_TESTS=ON -D BUILD_SHARED_LIBS=OFF -DBUILD_ANDROID_PROJECTS=OFF -DBUILD_JNI=ON \
-DWITH_OPENCL=ON -DWITH_OPENGL=ON \
-DANT_HOME=/usr/share/ant -DJAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 -DANT_EXECUTABLE=/bin/ant \
-DSTRIP=/home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip \
..modules/java/android_sdk/CMakeList.txt**:** 提取液
project(${the_module}_android)
if(ANDROID_EXECUTABLE)
set(OPENCV_JAVA_DIR "${OpenCV_BINARY_DIR}/android_sdk" CACHE INTERNAL "")
else() # gradle
set(OPENCV_JAVA_DIR "${ANDROID_BUILD_BASE_DIR}/opencv" CACHE INTERNAL "")
endif()
set(OPENCV_ANDROID_LIB_DIR "${OPENCV_JAVA_DIR}" CACHE INTERNAL "") # for OpenCV samples
message (STATUS "OPENCV_JAVA_DIR = ${OPENCV_JAVA_DIR}")
message (STATUS "ANDROID_BUILD_BASE_DIR = ${ANDROID_BUILD_BASE_DIR}")
message (STATUS "OpenCV_BINARY_DIR= ${OpenCV_BINARY_DIR}")
file(REMOVE_RECURSE "${OPENCV_JAVA_DIR}")
file(MAKE_DIRECTORY "${OPENCV_JAVA_DIR}/bin")
set(java_src_dir "${OPENCV_JAVA_DIR}/src")
file(MAKE_DIRECTORY "${java_src_dir}")Cmake终端输出
-- Check for working CXX compiler: /home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++
-- Check for working CXX compiler: /home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working C compiler: /home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
-- Check for working C compiler: /home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Detected processor: aarch64
CMake Warning at cmake/OpenCVUtils.cmake:752 (message):
Unexpected option: WITH_OPENGL (=ON)
Condition: IF (NOT;ANDROID;AND;NOT;WINRT)
Call Stack (most recent call first):
CMakeLists.txt:308 (OCV_OPTION)
-- Found PythonInterp: /usr/bin/python2.7 (found suitable version "2.7.18", minimum required is "2.7")
-- Found PythonInterp: /usr/bin/python3 (found suitable version "3.8.10", minimum required is "3.2")
-- Looking for ccache - not found
<---------- Performed Tests have been cut out from this output to meet character-limit of stackoverflow questions ----------->
-- ANDROID: TRUE
-- Update variable ANDROID_SDK_ROOT from environment: /home/flavio/Android/Sdk
-- Update variable ANDROID_HOME from environment: /home/flavio/Android/Sdk
Android: Projects builds are DISABLED
-- Looking for dlerror in dl
-- Looking for dlerror in dl - found
-- ADE: Download: v0.1.1f.zip
-- Allocator metrics storage type: 'int'
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.sse2.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.sse3.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.ssse3.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.sse4_1.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.sse4_2.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.avx.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.avx2.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin128.avx512_skx.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.avx2.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin256.avx512_skx.cpp
-- Excluding from source files list: <BUILD>/modules/core/test/test_intrin512.avx512_skx.cpp
-- Excluding from source files list: modules/imgproc/src/corner.avx.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.avx2.cpp
-- Excluding from source files list: modules/imgproc/src/imgwarp.sse4_1.cpp
-- Excluding from source files list: modules/imgproc/src/resize.avx2.cpp
-- Excluding from source files list: modules/imgproc/src/resize.sse4_1.cpp
-- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /home/flavio/Downloads/opencv/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
-- opencv_dnn: filter out cuda4dnn source code
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx2.cpp
-- Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp
-- Excluding from source files list: modules/features2d/src/fast.avx2.cpp
-- OPENCV_JAVA_DIR = /opencv
-- ANDROID_BUILD_BASE_DIR =
-- OpenCV_BINARY_DIR= /home/flavio/Downloads/opencv/build_manual
CMake Error at modules/java/android_sdk/CMakeLists.txt:15 (file):
file problem creating directory: /opencv/bin
CMake Error at modules/java/android_sdk/CMakeLists.txt:17 (file):
file problem creating directory: /opencv/src
CMake Error: Could not open file for write in copy operation /opencv/AndroidManifest.xml.tmp
CMake Error: : System Error: No such file or directory
CMake Error at modules/java/android_sdk/CMakeLists.txt:121 (configure_file):
configure_file Problem configuring file
CMake Error: Could not open file for write in copy operation /opencv/build.gradle.tmp
CMake Error: : System Error: No such file or directory
CMake Error at modules/java/android_sdk/CMakeLists.txt:121 (configure_file):
configure_file Problem configuring file
CMake Error: Could not open file for write in copy operation /opencv/res/values/attrs.xml.tmp
CMake Error: : System Error: No such file or directory
CMake Error at modules/java/android_sdk/CMakeLists.txt:121 (configure_file):
configure_file Problem configuring file
CMake Error: Could not open file for write in copy operation /opencv/libcxx_helper/CMakeLists.txt.tmp
CMake Error: : System Error: No such file or directory
CMake Error at modules/java/android_sdk/CMakeLists.txt:133 (configure_file):
configure_file Problem configuring file
CMake Error: Could not open file for write in copy operation /opencv/libcxx_helper/dummy.cpp.tmp
CMake Error: : System Error: No such file or directory
CMake Error at modules/java/android_sdk/CMakeLists.txt:133 (configure_file):
configure_file Problem configuring file
CMake Error: Could not open file for write in copy operation /opencv/build.gradle.tmp
CMake Error: : System Error: No such file or directory
CMake Error at modules/java/android_sdk/CMakeLists.txt:160 (configure_file):
configure_file Problem configuring file
-- Android OpenCV Manager is ignored
--
-- General configuration for OpenCV 4.5.1 =====================================
-- Version control: unknown
--
-- Platform:
-- Timestamp: 2022-03-20T09:57:50Z
-- Host: Linux 5.13.0-35-generic x86_64
-- Target: Android 1 aarch64
-- CMake: 3.16.3
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
--
-- CPU/HW features:
-- Baseline: NEON FP16
--
-- C/C++:
-- Built as dynamic libs?: NO
-- C++ standard: 11
-- C++ Compiler: /home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ (ver 9.0)
-- C++ flags (Release): -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O2 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O0 -DDEBUG -D_DEBUG
-- C Compiler: /home/flavio/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
-- C flags (Release): -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O2 -DNDEBUG -DNDEBUG
-- C flags (Debug): -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release): -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -Wl,--as-needed
-- Linker flags (Debug): -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -Wl,--as-needed
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: ade dl m log
-- 3rdparty dependencies: libcpufeatures ittnotify libprotobuf zlib libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf quirc tegra_hal
--
-- OpenCV modules:
-- To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc java ml objdetect photo stitching ts video videoio
-- Disabled: world
-- Disabled by dependency: -
-- Unavailable: python2 python3
-- Applications: tests
-- Documentation: NO
-- Non-free algorithms: NO
--
-- Android NDK: /home/flavio/Android/Sdk/ndk/21.0.6113669 (ver 21.0.6113669)
-- Android ABI: arm64-v8a
-- NDK toolchain: aarch64-linux-android-4.9
-- STL type: c++_shared
-- Native API level: 24
-- Android SDK: not used, projects are not built
--
-- GUI:
-- OpenGL support: NO
--
-- Media I/O:
-- ZLib: build (ver 1.2.11)
-- JPEG: build-libjpeg-turbo (ver 2.0.6-62)
-- WEBP: build (ver encoder: 0x020f)
-- PNG: build (ver 1.6.37)
-- TIFF: build (ver 42 - 4.0.10)
-- JPEG 2000: build (ver 2.3.1)
-- OpenEXR: build (ver 2.3.0)
-- HDR: YES
-- SUNRASTER: YES
-- PXM: YES
-- PFM: YES
--
-- Video I/O:
--
-- Parallel framework: pthreads
--
-- Trace: YES (with Intel ITT)
--
-- Other third-party libraries:
-- Custom HAL: YES (carotene (ver 0.0.1))
-- Protobuf: build (3.5.1)
--
-- OpenCL: YES (no extra features)
-- Include path: /home/flavio/Downloads/opencv/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python (for build): /usr/bin/python2.7
--
-- Java: export all functions
-- ant: /bin/ant (ver )
-- Java wrappers: YES
-- Java tests: NO
--
-- Install to: /home/flavio/Downloads/opencv/build_manual/install
-- -----------------------------------------------------------------
--
-- Configuring incomplete, errors occurred!
See also "/home/flavio/Downloads/opencv/build_manual/CMakeFiles/CMakeOutput.log".
See also "/home/flavio/Downloads/opencv/build_manual/CMakeFiles/CMakeError.log".回答 1
Stack Overflow用户
发布于 2022-07-28 11:39:34
我也有类似的错误，所以我通过打开-DBUILD_ANDROID_PROJECTS=ON修复了所有不兼容的"SDK工具版本“或"gradle版本”。然后，gradle可以在ANDROID_BUILD_BASE_DIR中设置所有必要的路径，比如modules/java/android_sdk/CMakeLists.txt:15。
例如，要更新SDK工具：>设置>系统设置> android > SDK工具>更新Android构建工具和NDK(并排)
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/71546091
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