用于Marvell的板子。
=============== 安装toolchain 以及 Qt
=============== 安装toolchain 以及 Qt
1, create diretory /CMMB
2, cp PlatformRel_Linux2.6.21_MHLV.tgz into the /CMMB
3, tar xvzf PlatformRel_Linux2.6.21_MHLV.tgz
this step create dir pxalinux.
4, cd /CMMB/pxalinux/toolchain
tar xvzf arm-iwmmxt-linux-gnueabi-4.1.1-gpl-lgpl.tgz
This stup create toolchain files in dir /CMMB/pxalinux/toolchain/arm-linux-4.1.1
5, modify the /root/.bashrc to add the path /CMMB/pxalinux/toolchain/arm-linux-4.1.1/bin
into the env var PATH.
export PATH=/CMMB/pxalinux/toolchain/arm-linux-4.1.1/bin:$PATH
6, cd /CMMB/pxalinux/package/usage-model-7.0.5
tar xvzf qtopia-src-gpl.tgz
After this step, the dir qtopia_2.2.0 is created.
7, cd /CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0
and run the shell: yes | ./build_qtopia.sh > build.log
8,
// 设定 qmake路径。
export PATH=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/dqt/bin:$PATH
export QMAKESPEC=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/qtopia/mkspecs/qws/linux-arm-g++
cd /CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0
chmod +x setQpeEnv
./setQpeEnv
2, cp PlatformRel_Linux2.6.21_MHLV.tgz into the /CMMB
3, tar xvzf PlatformRel_Linux2.6.21_MHLV.tgz
this step create dir pxalinux.
4, cd /CMMB/pxalinux/toolchain
tar xvzf arm-iwmmxt-linux-gnueabi-4.1.1-gpl-lgpl.tgz
This stup create toolchain files in dir /CMMB/pxalinux/toolchain/arm-linux-4.1.1
5, modify the /root/.bashrc to add the path /CMMB/pxalinux/toolchain/arm-linux-4.1.1/bin
into the env var PATH.
export PATH=/CMMB/pxalinux/toolchain/arm-linux-4.1.1/bin:$PATH
6, cd /CMMB/pxalinux/package/usage-model-7.0.5
tar xvzf qtopia-src-gpl.tgz
After this step, the dir qtopia_2.2.0 is created.
7, cd /CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0
and run the shell: yes | ./build_qtopia.sh > build.log
8,
// 设定 qmake路径。
export PATH=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/dqt/bin:$PATH
export QMAKESPEC=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/qtopia/mkspecs/qws/linux-arm-g++
cd /CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0
chmod +x setQpeEnv
./setQpeEnv
=============== 配置Qt开发环境
1, Create account for development
groupadd cmmbdev
adduser cmmb -g cmmbdev
adduser cmmb -g cmmbdev
passwd cmmb
2, Create a shell setDevEnv.sh, including:
# 导入Qtopia环境变量
4, chmod -R +r /CMMB/pxalinux
cd /CMMB
mkdir tvp
chown -R cmmb tvp
5, qmake -project
modify tvp.pro to include:
QMAKE_LIBS_QT += -ljpeg -luuid -lts -lqpe
6, qmake
7, make
2, Create a shell setDevEnv.sh, including:
# 导入Qtopia环境变量
source /CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/setQpeEnv
# 设置toolchain路径
export PATH=/CMMB/pxalinux/toolchain/arm-linux-4.1.1/bin:$PATH
# 设置qmake路径
export PATH=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/dqt/bin:$PATH
# 设置qmake环境变量配置路径
export QMAKESPEC=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/qtopia/mkspecs/qws/linux-arm-g++
3, add . ./setDevEnv.sh into the cmmb user's .bashrc# 设置toolchain路径
export PATH=/CMMB/pxalinux/toolchain/arm-linux-4.1.1/bin:$PATH
# 设置qmake路径
export PATH=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/dqt/bin:$PATH
# 设置qmake环境变量配置路径
export QMAKESPEC=/CMMB/pxalinux/package/usage-model-7.0.5/qtopia_2.2.0/work/qtopia-free-2.2.0/qtopia/mkspecs/qws/linux-arm-g++
4, chmod -R +r /CMMB/pxalinux
cd /CMMB
mkdir tvp
chown -R cmmb tvp
5, qmake -project
modify tvp.pro to include:
QMAKE_LIBS_QT += -ljpeg -luuid -lts -lqpe
6, qmake
7, make
通用的QT安装
1) 升级Kernel
rpm -ql | grep kern
yum intall kern*
2) 修改grub.conf使console支持FrameBuffer。在引导界面可以看到小企鹅。/dev目录下有设备fb0。 这样从console中就可以直接运行GUI程序了。
试图生成 libqte-mt.so, 用于QThread.
2) qt2
./configure -qt2 '-no-xft -thread -I/usr/include -I/usr/include/freetype2 -I/usr/include/freetype'
ln -sf /pub/qtopia-free-2.2.0/dqt/lib/libqt-mt.so.3.3.5 /pub/qtopia-free-2.2.0/qtopia/lib/libqte-mt.so
3）
./configure -qt2 '-no-xft -thread -I/usr/include -I/usr/include/freetype2 -I/usr/include/freetype'
以上步骤都不能生成libqte-mt.so
通过修改config.cache，可以生成libqte-mt.so了。
QPEDIR=/pub/qtopia-free-2.2.0/qtopia
QTOPIA_DEPOT_PATH=/pub/qtopia-free-2.2.0/qtopia
TMAKEDIR=/pub/qtopia-free-2.2.0/tmake
DQTDIR=/pub/qtopia-free-2.2.0/dqt
QT2DIR=/pub/qtopia-free-2.2.0/qt2
QTEDIR=/pub/qtopia-free-2.2.0/qt2
QPE_CFG="-edition pda -displaysize 240x320 -no-qtopiadesktop -release -platform 'linux-g++' -xplatform 'linux-generic-g++'"
QTE_CFG="-embedded -no-xft -qconfig qpe -qvfb -thread -depths 4,8,16,32 -system-jpeg -gif -D QT_TRANSFORM_VFB -release -platform 'linux-g++' -xplatform 'linux-generic-g++'"
QT2_CFG="-no-opengl -no-xft -no-sm -platform 'linux-g++'"
DQT_CFG="-thread -qt-gif -fast -platform 'linux-g++'"
USE_CACHE="no"
这样，Qt2的线程包没有生成，估计要设置-thread 到QT2_CFG中.
虽然这样做生成了libqte-mt.so, 但是把QThread用于QTopia程序(带GUI)时仍旧发生段错误. 普通的QT程序使用QThread时就没有问题.
后来通过配置qtopia的编译发现了这段警告. 看来在qtopia2.2下使用QThread是不稳定的.
[root@localhost qtopia]# ./configure -debug -thread -I/usr/include:/usr/include/freetype:/usr/include/freetype2 -qvfb -qtopia
QPEDIR = /pub/qtopia-free-2.2.0/qtopia
DEPOT = /pub/qpe2.2/qtopia
The following configuration values have been guessed or autodetected:
-arch generic
-displaysize 240-320
-edition pda
-fontfamilies helvetica fixed micro smallsmooth smoothtimes
-fontsizes all
-fontstyles 50 50i 75 75i
-languages en_US
-platform linux-g++
-xplatform linux-generic-g++
WARNING: Trolltech does not support building Qtopia against a multi-threaded Qt.
While it should work, Trolltech can make no guarantees about the ability
of Qtopia to operate correctly when Qt is multi-threaded. If you wish to
use threads in your own apps, you should consider using pthreads directly.
Symlinking header files to include directory
Creating qmake.......
因为以上Qtopia2.2中QThread的问题，这两天改用qtopia-opensource-4.3.1了. 感觉不错。
Qtopia-opensource-4.3.1的安装。
1）安装。
./configure 过程中有警告和错误提示如下。但是不用管它们，依旧可以编译通过。
Project ERROR: This is a dummy profile to be used for translations ONLY.
WARNING: Failure to find: qvfbhdr.h
在gmake的过程中，提示缺少库libXtst, libXmu，而不能继续。此时需要使用 yum install libXtst*, yum install libXmu*进行安装。
2）gmake install。
这一步会生成image。所有要运行的程序都要放在image/bin目录下。这是完整的Qtopia运行环境。
3）样例程序。
把example的样例程序随便copy到某个目录里。通过qtopiamake生成Makefile. 用make install INSTALL_ROOT="imagePath" 进行编译安装。
gstreamer 库与Qtopia的结合。
把利用gstreamer播放mp3的函数封装到动态库libmyGstLib.so中。Qtopia的GUI程序直接库中的函数。遇到的问题及解决如下：
1）段错误。
写了一个很简单的动态库供qtopia程序适用，一切正常。 排除了qtopia的问题。
int startPlayer (int argc, char *argv[]); 方法中有： gst_init (&argc, &argv); 而在Qtopia对其的调用中传递的是startPlayer(1, NULL);
怀疑gstreamer使用了argc, argv参数。于是就把NULL改为了一个字符串数组。问题解决了。但是又说没有找到"mad"插件。
又写了一个只有main函数，调用动态库的程序，却没有mad插件的错误。播放mp3没有问题。
察看了一下编译main函数使用的gcc参数。
libtool --mode=link gcc `pkg-config --cflags --libs gstreamer-0.10` -o gstTestApp test.c
gcc -pthread -I/usr/local/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 -pthread -o myprog test.c -L/usr/local/lib -L/lib /usr/local/lib/libgstreamer-0.10.so -lrt -lgobject-2.0 -lgmodule-2.0 -ldl -lgthread-2.0 -lxml2 -lz -lm -lglib-2.0 -Wl,--rpath -Wl,/usr/local/lib -Wl,--rpath -Wl,/usr/local/lib
而libmad安装后也提示:
而libmad安装后也提示:
If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
- add LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution
- add LIBDIR to the `LD_RUN_PATH' environment variable
during linking
- use the `-Wl,--rpath -Wl,LIBDIR' linker flag
- have your system administrator add LIBDIR to `/etc/ld.so.conf'
See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
- add LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution
- add LIBDIR to the `LD_RUN_PATH' environment variable
during linking
- use the `-Wl,--rpath -Wl,LIBDIR' linker flag
- have your system administrator add LIBDIR to `/etc/ld.so.conf'
See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
通过把这些库和编译选项加入到了myGstLib的编译文件中后,程序就可以播放mp3了.
2) Qt中的Singal-slot机制是同步的.如果某个signal没有处理完毕,界面就会冻结。所以需要使用线程进行播放。
2) Qt中的Singal-slot机制是同步的.如果某个signal没有处理完毕,界面就会冻结。所以需要使用线程进行播放。
