Qt交叉编译

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3k words

准备工作

下载软件

文件名 说明
gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux.tar.bz2 交叉编译工具链
tslib.tar.bz2 触摸屏库
qt-everywhere-opensource-src-5.9.6.tar.xz qt5.9.6源码

环境搭建

  1. 将gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux.tar.bz2和tslib.tar.bz2移动到/opt目录下

  2. 解压 gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux.tar.bz2到opt目录

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    cd /opt
    sudo tar -xvjf gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux.tar.bz2

  3. 解压 tslib.tar.bz2到opt目录

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    cd /opt
    sudo tar -xvjf tslib.tar.bz2

  4. 测试交叉编译链

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    cd /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin
    ./arm-linux-gnueabihf-g++ -v

    如果不能运行，可能是系统版本64位与交叉编译链32位不符导致，可以安装32位支持：

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    sudo dpkg --add-architecture i386
    sudo apt-get update
    sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 zlib1g:i386 -y

配置与编译QT

  1. 将qt-everywhere-opensource-src-5.9.6.tar.xz移动到用户目录下，创建qt-5.9.6-source目录用于放源码

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    cd ~
    mkdir qt-5.9.6-source

  2. 解压 qt-everywhere-opensource-src-5.9.6.tar.xz到用户目录

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    tar -xvjf qt-everywhere-opensource-src-5.9.6.tar.xz ./qt-5.9.6-source

  3. 配置交叉编译链

    • 打开配置文件
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    cd ~/qt-5.9.6-source/qt-everywhere-opensource-src-5.9.6
    vi ./qtbase/mkspecs/linux-arm-gnueabi-g++/qmake.conf
    • 修改内容，并指定交叉编译链地址
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    #
    # qmake configuration for building with arm-linux-gnueabi-g++
    #

    MAKEFILE_GENERATOR      = UNIX
    CONFIG                 += incremental
    QMAKE_INCREMENTAL_STYLE = sublib

    include(../common/linux.conf)
    include(../common/gcc-base-unix.conf)
    include(../common/g++-unix.conf)

    QT_QPA_DEFAULT_PLATFORM = linuxfb
    QMAKE_CFLAGS           += -march=armv7-a -mtune=cortex-a7
    QMAKE_CXXFLAGS         += -march=armv7-a -mtune=cortex-a7


    QMAKE_INCDIR = /opt/tslib/include
    QMAKE_LIBDIR = /opt/tslib/lib


    # modifications to g++.conf
    QMAKE_CC         = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-gcc -lts
    QMAKE_CXX        = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-g++ -lts
    QMAKE_LINK       = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-g++ -lts
    QMAKE_LINK_SHLIB = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-g++ -lts

    # modifications to linux.conf
    QMAKE_AR      = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-ar cqs
    QMAKE_OBJCOPY = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-objcopy
    QMAKE_NM      = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-nm -P
    QMAKE_STRIP   = /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-strip
    load(qt_config)

  4. 创建autoConfig.sh文件

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    vi ~/qt-5.9.6-source/qt-everywhere-opensource-src-5.9.6/autoConfig.sh

    autoConfig.sh内容：

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    #!/bin/sh

    ./configure \
        -prefix /opt/qt-5.9.6 \
        -v \
        -confirm-license \
        -opensource \
        -release \
        -make libs \
        -xplatform linux-arm-gnueabi-g++ \
        -optimized-qmake \
        -qt-libjpeg \
        -qt-libpng \
        -qt-zlib -tslib \
        -no-opengl -no-sse2 -no-openssl -no-cups -no-glib -no-xcb \
        -no-separate-debug-info -nomake examples \
        -nomake tools -nomake tests -no-iconv -no-dbus \
        -I /opt/tslib/include \
        -L /opt/tslib/lib \
        -recheck-all

  5. 编译QT

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    ./autoConfig.sh && make -j4 && make install

    编译后的qt库放置与/opt目录下

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