安装qtcreat

运行 qt-opensource-linux-x86_64-4.5.2.run
创建工程测试是否qtcreat

报错 1

:-1: error: cannot find -lGL

错误1 解决办法
原因：Qt5.0 以上的版本默认将OpenGL加入了工程，但是在机器上没有安装OpenGL，所以只需要在机器系统安装OpenGL即可

sudo apt-get install libgl1-mesa-dev

移植tslib

编译 tslib

Tslib：是一个开源的程序，能够为触摸屏驱动获得的采样提供诸如滤波、去抖、校准等功能，通常作为触摸屏驱动的适配层，为上层的应用提供了一个统一的接口。

//解压tslib
tar -xvf tslib-1.4.tar.gz

创建编译脚本

vim build_tslib.sh
sudo chmod 777 build_tslib.sh

 #!/bin/sh
./autogen-clean.sh
./autogen.sh				//报错 错误2
# 设置目标机型，缓冲，安装路径  指定交叉编译工具与输出路径  
./configure --host=arm-linux-gnueabihf ac_cv_func_malloc_0_nonnull=yes --cache-file=arm-linux.cache -prefix=/home/li/linux/install_soft/tslib
make -j6     //编译过程中报错  
make install

安装成功后验证 install_dir/tslib

ls /home/li/linux/install_soft/tslib
--------------------------------------------------------------
bin  etc  include  lib
--------------------------------------------------------------

错误2 解决办法
报错 not found autoconf

sudo apt-get install autoconf automake libtool

移植tslib到板卡中

拷贝tslib到根文件系统中

sudo cp -rf tslib/ /home/li/linux/nfs/rootfs/

设置开发板tslib 环境变量

vim /home/li/linux/share/rootfs/etc/profile

echo'-----------------------export tslib env------------------------------'
export T_ROOT=/tslib
export LD_LIBRARY_PATH=/tslib/lib:$LD_LIBRARY_PATH
export TSLIB_CONSOLEDEVICE=none
export TSLIB_FBDEVICE=/dev/fb0
export TSLIB_TSDEVICE=/dev/input/event0
export TSLIB_PLUGINDIR=$T_ROOT/lib/ts
export TSLIB_CONFFILE=$T_ROOT/etc/ts.conf
export POINTERCAL_FILE=/etc/pointercal
export TSLIB_CALIBFILE=/etc/pointercal

导入环境变量  并设置ts目录路径
export T_ROOT=/tslib
导入环境变量  并设置ts库文件路径
export LD_LIBRARY_PATH=/tslib/lib:$LD_LIBRARY_PATH
//导入环境变量  并设置ts显示设备为fb0  帧缓存
export TSLIB_FBDEVICE=/dev/fb0
//导入环境变量  并设置ts触摸输入设备，可以鼠标，触摸屏幕，这里使用的鼠标
export TSLIB_TSDEVICE=/dev/input/event0

移植qt

配置 编译环境qt

//创建安装路径

mkdir /home/li/linux/install_soft/arm_qt

//解压
tar -xvf qt-everywhere-opensource-src-5.6.0.tar.gz

创建编译脚本 需要指定 qt源码目录 tslib目录

vi autoconfigure.sh
#!/bin/sh
    ./configure 
    -prefix  /home/li/linux/install_soft/arm-qt 
    -confirm-license 
    -opensource 
    -shared 
    -release 
    -make libs 
    -xplatform linux-arm-gnueabi-g++ 
    -optimized-qmake 
    -pch 
    -qt-sql-sqlite 
    -qt-libjpeg 
    -qt-libpng 
    -qt-zlib 
    -no-opengl 
    -no-sse2 
    -no-openssl 
    -no-cups 
    -no-glib 
    -no-dbus 
    -no-xcb 
    -no-xcursor -no-xfixes -no-xrandr -no-xrender 
    -no-separate-debug-info 
    -no-fontconfig 
    -nomake examples -nomake tools -nomake tests -no-iconv 
    -tslib 
    -I /home/li/linux/install_soft/tslib/include 
    -L /home/li/linux/install_soft/tslib/lib
exit

需要注意 qt 安装路径 以及上一步安装的tslib路径

指定交叉编译工具及 tslib 的路径

vim qtbase/mkspecs/linux-arm-gnueabi-g++/qmake.conf

# qmake configuration for building with arm-linux-gnueabi-g++

MAKEFILE_GENERATOR      = UNIX
CONFIG                 += incremental
QMAKE_INCREMENTAL_STYLE = sublib


+ QT_QPA_DEFAULT_PLATFORM = linuxfb
+ QMAKE_CFLAGS += -O2 -march=armv7-a -mtune=cortex-a7 -mfpu=neon -mfloat-abi=hard
+ QMAKE_CXXFLAGS += -O2 -march=armv7-a -mtune=cortex-a7 -mfpu=neon -mfloat-abi=hard

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

# modifications to g++.conf
- QMAKE_CC                = arm-linux-gnueabi-gcc
- QMAKE_CXX               = arm-linux-gnueabi-g++
- QMAKE_LINK              = arm-linux-gnueabi-g++
- QMAKE_LINK_SHLIB        = arm-linux-gnueabi-g++

+ QMAKE_CC                = arm-linux-gnueabihf-gcc
+ QMAKE_CXX               = arm-linux-gnueabihf-g++
+ QMAKE_LINK              = arm-linux-gnueabihf-g++
+ QMAKE_LINK_SHLIB        = arm-linux-gnueabihf-g++

# modifications to linux.conf
- QMAKE_AR                = arm-linux-gnueabi-ar cqs
- QMAKE_OBJCOPY           = arm-linux-gnueabi-objcopy
- QMAKE_NM                = arm-linux-gnueabi-nm -P
- QMAKE_STRIP             = arm-linux-gnueabi-strip

+ QMAKE_AR                = arm-linux-gnueabihf-ar cqs
+ QMAKE_OBJCOPY           = arm-linux-gnueabihf-objcopy
+ QMAKE_NM                = arm-linux-gnueabihf-nm -P
+ QMAKE_STRIP             = arm-linux-gnueabihf-strip
+ QMAKE_INCDIR += /home/li/linux/install_soft/tslib/include
+ QMAKE_LIBDIR += /home/li/linux/install_soft/tslib/lib

load(qt_config)

编译

//配置脚本给权限
sudo chmod u+x autoconfigure.sh
//配置
./autoconfigure.sh
--------------------------------------------------------------
Qt is now configured for building. Just run 'make'.
...
--------------------------------------------------------------
//编译
make -j6

安装qt到目标文件夹并验证

make install
ls /home/li/linux/linux_qt/install_dir/qt5.6/arm-qt
--------------------------------------------------------------
bin  doc  include  lib  mkspecs  plugins  qml  translations
--------------------------------------------------------------
cd bin 
./qmake -v
--------------------------------------------------------------
QMake version 3.0
Using Qt version 5.6.0 in /home/li/linux/linux_qt/install_dir/qt5.6/arm-qt/lib
--------------------------------------------------------------

移植qt到板卡中

sudo cp -rf /home/li/linux/install_soft/arm-qt /home/li/linux/nfs/rootfs

设置环境变量
sudo vim /home/li/linux/nfs/rootfs/etc/profile

echo'-----------------------export qt env------------------------------'
export QTEDIR=/arm-qt
export LD_LIBRARY_PATH=/arm-qt/lib:$LD_LIBRARY_PATH
export QT_QPA_GENERIC_PLUGINS=evdevmouse:/dev/input/event0
export QT_QPA_FONTDIR=$QTEDIR/lib/fonts
export QT_QPA_PLATFORM_PLUGIN_PATH=$QTEDIR/plugins
export QT_QPA_PLATFORM=linuxfb:fb=/dev/fb0:size=1280x720:mmSize=1280x720:offset=0x0:tty=/dev/ttymxc0

当支持触摸屏时需要配置：export QT_QPA_GENERIC_PLUGINS="tslib:/dev/input/event0
当需要支持鼠标时需要配置：export QT_QPA_GENERIC_PLUGINS=evdevmouse:/dev/input/event0
当需要同时支持触摸屏和鼠标时则需要配置成：export QT_QPA_GENERIC_PLUGINS=“tslib:/dev/input/event0 MouseMan:/dev/input/mouse0”

qt 中文支持

编译 libiconv-1.14

libiconv qt解决中文乱码用于编码转换使用的库

//创建安装路径
mkdir /home/li/linux/install_soft/libiconv

//解压
tar -xvf libiconv-1.14.tar_2.gz
//创建脚本
vim build_libiconv.sh
sudo chmod 777 build_libiconv.sh

#!/bin/sh	
make clean
//配置
./configure --host=arm-linux --prefix=/home/li/linux/install_soft/libiconv CC=arm-linux-gnueabihf-gcc
make
//安装libiconv到目标文件夹
make install

验证libicon

objdump -a /lib/preloadable_libiconv.so
--------------------------------------------------------------
preloadable_libiconv.so：     文件格式 elf32-little
--------------------------------------------------------------

移植preloadable_libiconv.so到板卡中

cd  /home/li/linux/install_soft/libiconv/lib
sudo cp preloadable_libiconv.so /home/li/linux/nfs/rootfs/lib

设置环境变量

vim /home/li/linux/share/rootfs/etc/profile
export LD_PRELOAD=/lib/preloadable_libiconv.so

添加字库文件到根文件系统中

需要将DroidSansFallback.ttf 中文字库到复制到文件系统中

sudo mkdir lib/fonts
cp DroidSansFallback.ttf /home/li/linux/nfs/rootfs/arm-qt/lib/fonts

DroidSansFallback.ttf 必须存在export QT_QPA_FONTDIR=$QTEDIR/lib/fonts 所指向的文件夹

环境变量

echo'-----------------------export qt env------------------------------'
export LD_PRELOAD=/lib/preloadable_libiconv.so
export T_ROOT=/tslib 
export LD_LIBRARY_PATH=/tslib/lib:$LD_LIBRARY_PATH
export TSLIB_CONSOLEDEVICE=none                    
export TSLIB_FBDEVICE=/dev/fb0                      
export TSLIB_TSDEVICE=/dev/input/event2             
export TSLIB_PLUGINDIR=$T_ROOT/lib/ts               
export TSLIB_CONFFILE=$T_ROOT/etc/ts.conf           
export POINTERCAL_FILE=/etc/pointercal
export TSLIB_CALIBFILE=/etc/pointercal         

export QTEDIR=/qt5.6
export LD_LIBRARY_PATH=/qt5.6/lib:$LD_LIBRARY_PATH
export QT_QPA_GENERIC_PLUGINS=evdevmouse:/dev/input/event2
export QT_QPA_FONTDIR=$QTEDIR/lib/fonts
export QT_QPA_PLATFORM_PLUGIN_PATH=$QTEDIR/plugins 
export QT_QPA_PLATFORM=linuxfb:fb=/dev/fb0:size=1280x720:mmSize=1280x720:off    set=0x0:tty=/dev/ttymxc0

最后

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