Get Qt example running on SAM9N12

Bizer · wrote on 29 Apr 2015, 19:45

HI, sorry to bother you again. I crosscompiled everything like explained:https://forum.qt.io/topic/52546/tuto-build-qt-to-cross-compile-for-arm/2

With the qtcreator 5.4.1 i choose at build&run the libaries for qt4.8.5 und arm-linux-gnueabihf-g++ . If i run it everything gets compiled, no errors occure.

Then i copied the files to a usb stick and try to run it from the usb-stick with: ./example -qws linuxfb but something with bash sh occures... I also tried chmod but nothing changed.

Two questions:

list itemThe rest of the board software is compiled with CROSS_COMPILE=arm-none-eabi- : Do i have to compile qt also with arm-none-eabi- or should gcc-linaro-arm-linux-gnulist itemeabihf- also work?
Does the qtcreator also needed to be crosscompiled?

SGaist · wrote on 29 Apr 2015, 21:16

What exact error are you getting ?

Unless you plan to run Qt Creator on your board, no

Bizer · wrote on 30 Apr 2015, 14:30

On board the board: -sh: ./example: not found
http://www.bilder-upload.eu/show.php?file=c3cb1b-1430404583.jpg

SGaist · wrote on 30 Apr 2015, 23:14

What does file example return ?

Bizer · wrote on 1 May 2015, 09:36

On the SAM9N12-Linux "file" is not installed but on ubuntu(compiling PC) it says:
benephil: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 3.1.1, BuildID[sha1]=00493b39dc19cde81d1b1ac906499c24698e97f4, not stripped

SGaist · wrote on 1 May 2015, 23:28

Good, but the thing is, it doesn't seems that the file is copied over to the target

Bizer · wrote on 2 May 2015, 09:05

Sorry, I don't get it. What do you meen?
I copied the folder with the crosscompiled files from my PC to a usb-stick, mounted the usb-stick on the Evaluationboard and tried to run the example.

SGaist · wrote on 2 May 2015, 19:51

Then that's normal, the libraries can't be found, you should write a little bash script that setups the environment for your application to run. Have a look at the Linux Deployment Guide for more details about this

Bizer · 5 Mar 2015, 10:58

Ok so i probably have some libary issues... With crosscompilation everything should be fine? Do i have to write a bash script for those libaries?:

"ldd example"
checking sub-depends for '/usr/lib/libQtGui.so.4'
checking sub-depends for '/usr/lib/libQtNetwork.so.4'
checking sub-depends for '/usr/lib/libQtCore.so.4'
checking sub-depends for '/lib/libpthread.so.0'
ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0xb6f60000)
libdl.so.0 => /lib/libdl.so.0 (0xb6f54000)
libc.so.0 => /lib/libc.so.0 (0xb6efb000)
checking sub-depends for '/usr/lib/libstdc++.so.6'
checking sub-depends for 'not found'
checking sub-depends for '/lib/libgcc_s.so.1'
checking sub-depends for 'not found'
checking sub-depends for '/usr/lib/libts-1.0.so.0'
checking sub-depends for '/usr/lib/libgthread-2.0.so.0'
checking sub-depends for '/usr/lib/libglib-2.0.so.0'
checking sub-depends for '/usr/lib/libintl.so.8'
checking sub-depends for '/lib/libm.so.0'
libc.so.0 => /lib/libc.so.0 (0xb6ed4000)
ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0xb6f2d000)
checking sub-depends for '/lib/libc.so.0'
ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0xb6f4e000)
checking sub-depends for '/lib/libdl.so.0'
libc.so.0 => /lib/libc.so.0 (0xb6ee9000)
ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0xb6f42000)
checking sub-depends for '/lib/librt.so.0'
libc.so.0 => /lib/libc.so.0 (0xb6eda000)
libdl.so.0 => /lib/libdl.so.0 (0xb6ece000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb6eb2000)
ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0xb6f33000)
checking sub-depends for '/usr/lib/libiconv.so.2'
libQtGui.so.4 => /usr/lib/libQtGui.so.4 (0x00000000)
libQtNetwork.so.4 => /usr/lib/libQtNetwork.so.4 (0x00000000)
libQtCore.so.4 => /usr/lib/libQtCore.so.4 (0x00000000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00000000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00000000)
libm.so.6 => not found (0x00000000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00000000)
libc.so.6 => not found (0x00000000)
libts-1.0.so.0 => /usr/lib/libts-1.0.so.0 (0x00000000)
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0x00000000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x00000000)
libintl.so.8 => /usr/lib/libintl.so.8 (0x00000000)
libm.so.0 => /lib/libm.so.0 (0x00000000)
libc.so.0 => /lib/libc.so.0 (0x00000000)
libdl.so.0 => /lib/libdl.so.0 (0x00000000)
librt.so.0 => /lib/librt.so.0 (0x00000000)
/lib/ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0x00000000)
libiconv.so.2 => /usr/lib/libiconv.so.2 (0x00000000)
not a dynamic executable

Bizer · wrote on 3 May 2015, 17:46

Hey, i observed one thing: If i run the project in qtcreator and check the "run in terminal" i get a: "Syntax error: word unexpected (expecting ")") "
Is there something i can/should do about this issue? Because if i run "sh example" i get the same error.

SGaist · wrote on 3 May 2015, 21:12

What distribution is running on your board ?

Bizer · wrote on 4 May 2015, 16:16

At91linux with buildroot-rfs

SGaist · wrote on 4 May 2015, 23:42

Did you install Qt 4 directly through Buildroot ?

Bizer · wrote on 5 May 2015, 13:05

Yes, i did

Bizer · wrote on 6 May 2015, 18:24

no further ideas?

SGaist · wrote on 6 May 2015, 20:23

Did you also cross-compile Qt using the libraries from Buildroot ?

Bizer · wrote on 7 May 2015, 12:21

On the dev machine no, on the evaluationboard yes

SGaist · wrote on 8 May 2015, 19:55

Just to be sure I understand you correctly: you cross-compiled Qt on your desktop using a different set of libraries rather that than the one from your evaluation board and you compiled natively on your device ?

Bizer · wrote on 11 May 2015, 19:06

Yes, but it should be the same version. Buildroot uses 4.8.6 and on the dev machine i also had 4.8.6

SGaist · wrote on 11 May 2015, 19:54

Same Qt version is one thing, but it looks like you don't have the same set of dependencies between both versions and maybe not the same set of options given to configure