Today, the Qtopia-opensource-src-4.3.2 for mipsel is successfully compiled.

Qtopia-free-1.7.0.tar.gz is used in the first burst, because it is already running on the Development Board. However, due to hardware mouse requirements, analysis is required.
The source code of qtopia. I visited the Internet and found that the latest full version of qtopia is 4.3.2, and the interface is also very beautiful. So I thought, since I want to analyze the source code of qtopia,
Why not directly use the latest qt4, and qt4 will be the mainstream for a period of time in the future, so decided to transplant the latest full version of the qtopia-4.3.2.

Concept:
What is qtopia?
Qtopia is a comprehensive application development platform for Embedded Linux. It is also a user interface for Linux-based PDA (Personal Digital Assistant), smart phone (smartphone), and other mobile devices. In short, qtopia is essentially a combination of PDA and smart phone applications. If you need to develop such products, you can quickly build a PDA or smart phone on the basis of this program.

I. Environment:

Host system: fedora 10

Target Board: cq8401 industrial computer development board of Chongqing shenzhoulongcore Technology Co., Ltd., 1024x768 LCD display, pS2 mouse, keyboard
CPU: mipsel, clock speed 400 MHz,
64 MB memory
File System: NFS (busybox 1.13.1)
Hard Disk: 160 GB (IDE or SATA)

Qtopia version: qtopia 4.3.2 size: 109.89 m
: Ftp://ftp.trolltech.com/qtopia/source/qtopia-opensource-src-4.3.2.tar.gz

Cross-compiler: mipsel-Linux-GCC, mipsel-Linux-G ++ // GCC version 3.3.6

Ii. preparations:

Create the build directory and installation directory:
Directory structure:
Extract the source code of/opt/qtopia/source to this directory (the source directory must be as prompted by. Configure.

/Opt/qtopia/Target compiling Directory: stores files generated by configure and make (the compiling directory cannot be the source directory)

/Usr/local/qtopia installation directory. After installation, copy it to the corresponding directory of the NFS file system. For example, my NFS file system structure is/nfsroot/cq8401/{bin, etc, Lib, opt, TMP, USR, VAR}

Then, copy the qtopia directory/usr/local/qtopia to the/nfsroot/cq8401/usr/local directory. Why? Because you enter the system on the Development Board and run the QT application, it will search for the library configuration under/usr/local/qtopia!

Iii. Configuration and Compilation:

Because I didn't configure this before, there was no cursor in the middle of the screen, only my hardware mouse, but the hardware mouse I implemented has no interface with the QT mouse event

In combination, the click always becomes invalid. You need to guess where the current mouse position of QT is!

CD/opt/qtopia/source

# Vi qtopiacore/qconfig-qpe.h

First, comment out the macro definition of the mouse cursor so that the cursor appears in the center of the screen when the program is running:

// Qtopia Core

/*

# Ifndef qt_no_qws_cursor

# Define qt_no_qws_cursor

# Endif

*/

/*

# Ifndef qt_no_qws_mouse

# Define qt_no_qws_mouse

# Endif

# Ifndef qt_no_qws_mouse_auto

# Define qt_no_qws_mouse_auto

# Endif

*/

Other macro definitions are annotated as needed.

Save and copy the qconfig-qpe.h to the global directory.

# Cp qtopiacore/qconfig-qpe.h qtopiacore/QT/src/corelib/global/qconfig-qpe.h

Comment out the definition of qt_no_qws_cursor in other files

# Vi qtopiacore/QT/src/corelib/global/qfeatures. h

Comment out the following content:

/*

# If! Defined (qt_no_qws_cursor) & (defined (qt_no_cursor ))

# Define qt_no_qws_cursor

# Endif

*/

Save and exit.

# Vi qtopiacore/QT/src/corelib/global/qglobal. h

Comment out the following:

// # Define qt_no_qws_cursor

# Cd/opt/qtopia/Target

#
../Source/configure-release-image/usr/local/qtopia-Prefix
/Usr/local/qtopia-xplatform Linux-MIPS-G ++-arch MIPS-no-qvfb
-Displaysize 1024x768-no-modem-extra-qtopiacore-config "-release
-Xplatform qws/Linux-MIPS-G ++-embedded MIPS-qconfig qpe-depths
8, 16, 32 "2> ../configure_error.log

# Make 2> ../make_error.log

Output the error to the make_error.log file. Otherwise, after compilation, you do not know where the error occurred, because the input information is quite large!

The main configuration options are described as follows:

-Release create a release build.

-Xplatform Linux-MIPS-G ++-arch MIPS // The target platform is MIPS-Linux and the architecture is MIPS. (. Configure how does it detect whether it is a large-end or a small-end CPU? Of course, you can also force to specify:
-Little-Endian... force target build to use little endian (LSB first ).
-Big-Endian ...... force target build to use big endian (MSB first ).)
Supported arch lists: Alpha, arm, boundschecker, generic, i386, IA64, MacOSX, MIPS, parisc, PowerPC, s390, iSCSI, windows, x86_64

-No-qvfb // The target platform already supports framebuffer, so no virtual frame buffering is used.

-Extra-qtopiacore-config // specifies the qtopia core configuration option.

-Xplatform qws/Linux-MIPS-G ++-embedded MIPS // use the qtopiacore/QT/mkspecs/qws/Linux-MIPS-G ++ directory to compile the configuration file on the target platform. configuration file, the embedded platform is MIPS.

-Qconfig qpe // use the profile qconfig-qpe.h and use the-qconfig large option if the qconfig-large.h profile is used.

2> ../confgure_error.log // Finally, output errors in the configuration process to the confgure_error.log file.

After the compilation and installation are complete, what is in/usr/local/qtopia is the file required for qtopia to run on mipsel.

Create Time Zone Information:

Copy the/opt/qtopia/target/etc/zoneinfo directory under the compiled directory to the usr/share directory of the NFS file system.

# Cp-A/opt/qtopia/target/etc/zoneinfo/nfsroot/cq8401/usr/share/

Copy the Host:/usr/local/qtopia directory to the corresponding directory of the NFS file system: (74 MB in total)

# Cp-A/usr/local/qtopia/nfsroot/cq8401/usr/local/
 

4. Enter the Development Board, configure and run

Now, go to the Development Board System:

Environment Settings: (it is best to write them to the/etc/profile file, so that you do not have to re-enter the file every time you restart the system)

Export Home =/root # Set the user directory. After QT is run, the corresponding configuration file is stored in the user's main directory.
Export Path =/usr/local/qtopia/bin: $ path # Set the QT program search path
Export LD_LIBRARY_PATH =/usr/local/qtopia/lib: $ LD_LIBRARY_PATH # Set the QT library search path
Export qws_keyboard_proto = TTY:/dev/tty0 # Set the keyboard
Export qws_mouse_proto = mouseman:/dev/input/mice # Set mouse settings
Export TZ = Asia/Chongqing # set the time zone, which can be Beijing or Shanghai. I am in Chongqing, so I set it to Chongqing.
Export qws_display = "linuxfb: mmwidth35: mmheight45: 0" # The font and icon of this sentence are displayed.

After completion, execute

# Qpe-qws &

If you see the qtopia enabled on the target board screen, it indicates that it is successful.

(Welcome to reprint, but please indicate the source: http://blog.csdn.net/sabalol/archive/2009/01/08/3737093.aspx)

References:
Http://blog.chinaunix.net/u1/49924/showart_667900.html
Http://blog.csdn.net/imho888/archive/2008/12/02/3426436.aspx