Thread: Arm9 & qt4.7

hi everyone,

im facing problems while executing QT applications on my s3c2440.

I succesfully cross compiled QT4.7.1 for arm using the follow configuration:

Qt Code:

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./configure -release -shared -fast -no-largefile -no-exceptions -no-accessibility -no-stl -no-qt3support \
-no-xmlpatterns -no-phonon -no-phonon-backend -no-svg -no-webkit -no-declarative -no-declarative-debug -no-glib -no-cups -no-scripttools \
-no-script -no-audio-backend -no-multimedia -no-nis \
-system-zlib -system-libpng -system-libjpeg -system-freetype \
-embedded arm -xplatform qws/linux-arm-g++ -little-endian -D__ARM_ARCH_4__ -plugin-gfx-directfb -no-gfx-multiscreen \
-prefix /usr

./configure -release -shared -fast -no-largefile -no-exceptions -no-accessibility -no-stl -no-qt3support \
-no-xmlpatterns -no-phonon -no-phonon-backend -no-svg -no-webkit -no-declarative -no-declarative-debug -no-glib -no-cups -no-scripttools \
-no-script -no-audio-backend -no-multimedia -no-nis \
-system-zlib -system-libpng -system-libjpeg -system-freetype \
-embedded arm -xplatform qws/linux-arm-g++ -little-endian -D__ARM_ARCH_4__ -plugin-gfx-directfb -no-gfx-multiscreen \
-prefix /usr

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If i try to execute an example application on my target i get the an error like:

Qt Code:

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$./analogclock -qws
QString::arg: Argument missing: "/proc/%1/exe" , 1426
Qtig:r:Agmn isn:"po/1ee  46
Qtig:r:Agmn isn:"po/1ee  46
Qtig:r:Agmn isn:%ted,/
Qtig:r:Agmn isn:"1qebde-2
Cno raeQ o meddLnxdt ietr:%ted
Aborted

$./analogclock -qws
QString::arg: Argument missing: "/proc/%1/exe" , 1426
Qtig:r:Agmn isn:"po/1ee  46
Qtig:r:Agmn isn:"po/1ee  46
Qtig:r:Agmn isn:%ted,/
Qtig:r:Agmn isn:"1qebde-2
Cno raeQ o meddLnxdt ietr:%ted
Aborted

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Did someone face a similar problem or did anyone succesfully run QT 4.7.1 on a arm target at all?
It seems like im not getting this problem when i run QT 4.6.x!

Thanks in advance!

Originally Posted by Ovrflw

Did someone face a similar problem or did anyone succesfully run QT 4.7.1 on a arm target at all?
It seems like im not getting this problem when i run QT 4.6.x!

Did you move the compiled libraries, etc. to your target? Are you sure that 'analogclock' is accessing the right libraries. I can run the analog clock on an IMX25. (This is an 'arm926', arm has many version numbers for the same chip). However, I doubt the specific machine has anything to do with it. I reflash the entire file system if I upgrade Qt.

Im sure i moved the libraries to the target. Even if i compile QT static the same error occurs.

I have no problems with QT 4.6.3, configured exactly the same.

Yes, I have the same problem (Arm9 & qt4.7). It seems like there is some character encoding problem in the error message with just every 2nd character displayed. I've tried to decode it a bit by searching in vim my static binary file using regular expressions. This is what I've got for now:

Qt Code:

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QString::arg: Argument missing: "/proc/%1/exe     1 3 
QString::arg: Argument missing: "/proc/%1/exe     1 3 
QString::arg: Argument missing: % t e d , /
QString::arg: Argument missing: " 1/qtembedded-%2       ? ? ? ? ?
Cannot create Qt for Embedded Linux data directory: % t e d

QString::arg: Argument missing: "/proc/%1/exe     1 3 
QString::arg: Argument missing: "/proc/%1/exe     1 3 
QString::arg: Argument missing: % t e d , /
QString::arg: Argument missing: " 1/qtembedded-%2       ? ? ? ? ?
Cannot create Qt for Embedded Linux data directory: % t e d

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Please let me know if you find out the reason for this error.

Regards,
Nils

If it is every second character, I would think that something change from UTF-8 to UTF-16.. Like 'char' to 'wchar' as a default.

Originally Posted by Ovrflw

$./analogclock -qws
QString::arg: Argument missing: "/proc/%1/exe" , 1426

Do you have /proc compiled in the kernel and mounted? Maybe some argument parsing has changed between Qt 4.6 and 4.7. I have arm920ej-s CPUs and have no problem with Qt 4.7.0. I haven't update to 4.7.1, but according to the Changelog, I don't see anything that would cause this.

Hi

Have you found a solution to this problem?
I'm compiling Qt 7.4.1 for an arm926EJ-S using Buildroot and get the same error.

Regards,
Anders

Hi,

http://bugreports.qt.nokia.com/secur...avigator.jspa?
http://bugreports.qt.nokia.com/browse/QTBUG-15784

__________________________________________________ __________________________
http://bugreports.qt.nokia.com/secur....1-qchar.patch
/home/bucket/embedded/qt-everywhere-opensource-src-4.7.1-LxNetes/src/corelib/tools/qchar.h
----------------------------------------------------------------------------
--- qchar.h.old 2011-01-28 11:11:36.000000000 +0800
+++ qchar.h 2011-01-28 11:21:28.000000000 +0800
@@ -358,7 +358,11 @@
QChar(uchar c);
#endif
ushort ucs;
-};
+}
+#if (defined(__arm__) || defined(__ARMEL__))
+ Q_PACKED
+#endif
+ ;

Q_DECLARE_TYPEINFO(QChar, Q_MOVABLE_TYPE);
__________________________________________________ __________________________

:-)

regards
schasch