環境:
PC系統: ubuntu16.04LTS(64位)
目標開發板: itop4412
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下載新版支持c++11的交叉編譯器:
網址:https://releases.linaro.org/components/toolchain/binaries/
https://releases.linaro.org/components/toolchain/binaries/6.1-2016.08/arm-linux-gnueabi/
交叉編譯器:gcc-linaro-6.1.1-2016.08-i686_arm-linux-gnueabi.tar.xz -
解壓和環境配置:
編輯.bashrc,並添加環境變量設置
vi .bashrc
export PATH=$PATH:/usr/local/arm/gcc-linaro-6.1.1-2016.08-i686_arm-linux-gnueabi/bin -
進入opencv3.4,在CMakeLists.txt文件前面添加:
set(CMAKE_C_COMPILER "arm-linux-gnueabi-gcc")
set(CMAKE_C_COMPILER_AR "arm-linux-gnueabi-ar")
set(CMAKE_CXX_COMPILER "arm-linux-gnueabi-g++")
set(CMAKE_INSTALL_PREFIX "/usr/local/lib/arm/opencv-arm")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pthread")
INCLUDE_DIRECTORIES(/usr/local/lib/arm/zlib/include)
LINK_DIRECTORIES(/usr/local/lib/arm/zlib/lib)
其中:zlib已經提前交叉編譯並安裝好。
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mkdir build_cross
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cd build_cross
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cmake …
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make -j8
結果:出現以下錯誤:
雖然仍然失敗了,這次編譯到了65%,且錯誤提示很清楚,離成功不遠了。 -
取消幾個功能模塊,總的CMakeLists.txt添加部分如下:
set(CMAKE_C_COMPILER "arm-linux-gnueabi-gcc")
set(CMAKE_C_COMPILER_AR "arm-linux-gnueabi-ar")
set(CMAKE_CXX_COMPILER "arm-linux-gnueabi-g++")
set(CMAKE_INSTALL_PREFIX "/usr/local/lib/arm/opencv-arm")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pthread")
INCLUDE_DIRECTORIES(/usr/local/lib/arm/zlib/include)
LINK_DIRECTORIES(/usr/local/lib/arm/zlib/lib)
set(WITH_1394 "OFF")
set(WITH_CUDA "OFF")
set(WITH_GTK "OFF")
- make install, 安裝opencv3.4交叉編譯的庫和頭文件。