交叉编译qt5.14.2

qt���码下载地址：qt-everywhere-src-5.14.2.tar.xz

1.修改qt-everywhere-src-5.14.2/qtbase/mkspecs/linux-arm-gnueabi-g++/qmake.conf文件：

## qmake configuration for building with arm-linux-gnueabi-g++#MAKEFILE_GENERATOR      = UNIXCONFIG                 += incrementalQMAKE_INCREMENTAL_STYLE = sublibQT_QPA_DEFAULT_PLATFORM = linuxfb QMAKE_CFLAGS_RELEASE += -O2 -march=armv7-a -mtune=cortex-a7 -mfpu=neon -mfloat-abi=hardQMAKE_CXXFLAGS_RELEASE += -O2 -march=armv7-a -mtune=cortex-a7 -mfpu=neon -mfloat-abi=hardinclude(../common/linux.conf)include(../common/gcc-base-unix.conf)include(../common/g++-unix.conf)#QMAKE_INCDIR            += /home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/X11_INSTALL/include#QMAKE_INCDIR            += /home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/XCB_INSTALL/include#QMAKE_LIBDIR             += /home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/X11_INSTALL/lib#QMAKE_LIBDIR             += /home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/XCB_INSTALL/libQMAKE_LIBS              += -lXauQMAKE_LIBS              += -lxcb#QMAKE_LIBS              += -lxcb-xkb#QMAKE_LIBS              += -lxkbcommon#QMAKE_LIBS              += -lxkbcommon-x11# modifications to g++.confQMAKE_CC                = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gccQMAKE_CXX               = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++QMAKE_LINK              = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++QMAKE_LINK_SHLIB        = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++# modifications to linux.confQMAKE_AR                = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-ar cqsQMAKE_OBJCOPY           = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-objcopyQMAKE_NM                = /home/ubuntu/real_imx6ull_board/Toolchain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-nm -PQMAKE_STRIP        

2.在源码目录下创建脚本autoconfig.sh,内容如下：

#!/bin/sh./configure \-prefix /home/ubuntu/real_imx6ull_board/qt_for_imx6ull/build_output \-opensource \-confirm-license \-release \-strip \-shared \-xplatform linux-arm-gnueabi-g++ \-optimized-qmake \-c++std c++11 \--rpath=no \-pch \-skip qt3d \-skip qtactiveqt \-skip qtandroidextras \-skip qtcanvas3d \-skip qtconnectivity \-skip qtdatavis3d \-skip qtdoc \-skip qtgamepad \-skip qtlocation \-skip qtmacextras \-skip qtnetworkauth \-skip qtpurchasing \-skip qtquick3d \-skip qtremoteobjects \-skip qtscript \-skip qtscxml \-skip qtsensors \-skip qtspeech \-skip qtsvg \-skip qttools \-skip qttranslations \-skip qtwayland \-skip qtwebengine \-skip qtwebview \-skip qtwinextras \-skip qtx11extras \-skip qtxmlpatterns \-make libs \-make examples \-nomake tools -nomake tests \-gui \-widgets \-dbus-runtime \--glib=no \--iconv=no \--pcre=qt \--zlib=qt \-no-openssl \--freetype=qt \--harfbuzz=qt \-no-opengl \-linuxfb \-xkbcommon \--xcb \-tslib \--libpng=qt \--libjpeg=qt \--sqlite=qt \-plugin-sql-sqlite \-I/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/tslib_xxx/tslib_output/include \-I/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/XKB_INSTALL/include \-I/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/X11_INSTALL/include \-I/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/XCB_INSTALL/include \-L/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/tslib_xxx/tslib_output/lib \-L/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/XKB_INSTALL/lib \-L/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/X11_INSTALL/lib \-L/home/ubuntu/real_imx6ull_board/qt_for_imx6ull/xcb_for_arm/XCB_INSTALL/lib \-recheck-all

这里开启了xcb支持，因为qtquick模块需要用到xcb，如图：

3.make&make install

4.将build_output文件夹拷贝到buildroot根文件系统的/opt目录下：

5.将前期交叉编译的tslib文件夹和XCB、X11、XKB文件夹也拷贝到/opt/build_output/

6.修改根文件系统/etc/profile文件，添加如下代码

export PATH="/bin:/sbin:/usr/bin:/usr/sbin"export PATH="/bin:/sbin:/usr/bin:/usr/sbin"export TSLIB_CONSOLEDEVICE=noneexport TSLIB_FBDEVICE=/dev/fb0export TSLIB_TSDEVICE=/dev/input/event1export TSLIB_TSEVENTTYPE=inputexport TSLIB_CONFFILE=/opt/build_output/tslib_output/etc/ts.confexport TSLIB_CALIBFILE=/etc/pointercalexport TSLIB_PLUGINDIR=/opt/build_output/tslib_output/lib/tsexport QT_QPA_GENERIC_PLUGINS=tslibexport QT_ROOT=/opt/build_outputexport QT_QPA_FONTDIR=$QT_ROOT/lib/fontsexport QT_QPA_PLATFORM_PLUGIN_PATH=$QT_ROOT/pluginsexport QT_QPA_PLATFORM=linuxfb:fb=/dev/fb0export LD_LIBRARY_PATH=/lib:/usr/lib:$QT_ROOT/lib:/opt/build_output/tslib_output/lib/:/opt/build_output/X11_INSTALL/lib/:/opt/build_output/XKB_INSTALL/lib/:/opt/build_output/XCB_INSTALL/lib

7.在根文件系统/etc/init.d/下添加文件S80selfdef，目的是挂载NFS网络文件系统。内容如下：

echo 7 4 1 7 > /proc/sys/kernel/printkmount -t nfs -o nolock,vers=3 192.168.137.100:/home/ubuntu/real_imx6ull_board/ /mnt

8.在开发板的uboot中设置参数：

9.启动

10.运行

效果：

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