Compiling problem on arm920t board

wuke · **Joined:** Sat Dec 29, 2007 11:59 am **Posts:** 10

Hi all, I'm now working with the MINI2440 development board from http://www.developmentboard.net. the board seems to be perfect, it came with a detailed manual, following which I am testing this board, installed Redhat 9.0, arm-linux-gcc-3.3.2, Qt/embedded, now I'm trying to compile the example program "Hello,world!", where I saw the error information below:

Code:

[root@localhost hello]# make  
/usr/lib/qt-3.1/bin/uic hello_base.ui -o ./hello_base.h  
/usr/lib/qt-3.1/bin/uic: error while loading shared libraries:  
libqt-mt.so.3: cannot open shared object file: No such file or directory  
make: *** [hello_base.h] Error 127  

What does this mean?
what should I do with this?
Any information will be helpful, thanks in advance!

rybo · **Posted:** Mon Nov 10, 2008 9:45 am

wuke wrote:

What does this mean?

It means that there is no libqt-mt.so.3 on your system, which is required by your makefile OR path to this library is bad.

wuke wrote:

what should I do with this?

Build/get this library OR fix makefile if libqt-mt.so.3 is present on your system.

wuke · **Joined:** Sat Dec 29, 2007 11:59 am **Posts:** 10

rybo wrote:

wuke wrote:

What does this mean?

It means that there is no libqt-mt.so.3 on your system, which is required by your makefile OR path to this library is bad.

wuke wrote:

what should I do with this?

Build/get this library OR fix makefile if libqt-mt.so.3 is present on your system.

Yes! this is the answer. you're really helpful, thanks a lot

rybo · **Posted:** Tue Nov 11, 2008 9:57 am

wuke wrote:

Yes! this is the answer. you're really helpful, thanks a lot

I'm glad this helped!

wuke · **Joined:** Sat Dec 29, 2007 11:59 am **Posts:** 10

Sorry to bring this back. But I'm actually facing another problem when doing this same thing on my another MINI2440 board.
I was trying to use QT embedded in order to have powerfull applications shown on the 7" display, referring toa tutorial from the vendor. Now, the system is started but when I try to launch my own program in "/bin", I have the following message :

Code:

relocation error: /opt/build/lib/libQtGui.so.4: symbol_floatsisf, version GCC_3.0 not defined in file libgcc_s.so.1 with link time reference

Anyone here gets any idea about this? Please help me. thanks in advance

rybo · **Posted:** Fri Aug 07, 2009 12:15 pm

wuke wrote:

Code:

relocation error: /opt/build/lib/libQtGui.so.4: symbol_floatsisf, version GCC_3.0 not defined in file libgcc_s.so.1 with link time reference

I have not much ideas, but IMO this could be the situation when your toolchain libraries on build machine differs from the ones on your target device. In this case when you transfer your fresh QT library build to your device, they just can't link against some standart libs, because of the different versions. If this is really the case, you have a lot to do - rebuild your filesystem for your MINI board, so they will link against newer libraries, OR rebuild QT and your program linking them to the versions you have on your device (but I doubt that you may have appropriate toolchain for your board, as I never got one in numerous devkits).
Another thing that I want to mention, it looks weird for me that QT mentions libgcc. Is this debug build? Can you post the info from executing following command on your program binary:

Code:

readelf -hl <program>

Take in mind, that you may have a prefix before a readelf, usually arm-linux-

marcin.juszkiewicz · **Posted:** Fri Aug 07, 2009 4:45 pm

I would suggest trying OpenEmbedded (or buildroot maybe) instead of doing such builds by hand. Creation of root filesystems for embedded devices takes time which can be spent on other things (such as development of application).

And mini2440 is already supported in OE. Device is great choice for embedded work - everything needed is available (serial, ethernet, screen etc).

rybo · **Posted:** Fri Aug 07, 2009 5:56 pm

marcin.juszkiewicz wrote:

I would suggest trying OpenEmbedded (or buildroot maybe) instead of doing such builds by hand. Creation of root filesystems for embedded devices takes time which can be spent on other things (such as development of application).

Absolute truth.

Compiling problem on arm920t board

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