/usr/local/lib/libcxcore.a: could not read symbols: File in wrong format

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1

Hi guys, im trying to compile a opencv codes with the following
commands

fyp@fyp-laptop:~/opencv.build$ arm-angstrom-linux-gnueabi-g++ /home/
fyp/stuff/opencvvvvv/findLinesMatrix.c -o opencvtest -I/usr/local/
include/opencv /usr/local/lib/libhighgui.a /usr/local/lib/libcxcore.a /
usr/local/lib/libcvaux.a /usr/local/lib/libcv.a /usr/lib/libpng.a /usr/
lib/libz.a -lpthread -ldl

but i get these errors which i cannot solve...

/usr/local/angstrom/arm/lib/gcc/arm-angstrom-linux-gnueabi/
4.3.3/../../../../arm-angstrom-linux-gnueabi/bin/ld: /usr/local/lib/
libcxcore.a(dgesv.o): Relocations in generic ELF (EM: 3)
/usr/local/lib/libcxcore.a: could not read symbols: File in wrong
format
collect2: ld returned 1 exit status

Im using opencv2.0..
can someOne point out my mistakes?? Or possible solutions?

THanks for all the help!!

Charlie

2

Why aren't you using Angstrom (OE) to build opencv?

You should be able to just run 'bitbake opencv' and have OE perform
all the cross compile magic.

3

haha...cause im not familiar with bitbake, u tried and end up with some unsolved errors..
Then i saw this website http://www.stanford.edu/~zxwang/cross_compilation.html
and followed it...that's how i end up here...
Thanks! your suggestion is good...Is there any website i can read on bitbake opencv??

First of all, please keep your replies on the mailing list so that all may benefit.

A reasonable place to find out about Angstrom and OE would be http://www.linuxtogo.org/gowiki/Angstrom

4

haha...cause im not familiar with bitbake, u tried and end up with some
unsolved errors..
Then i saw this website
http://www.stanford.edu/~zxwang/cross_compilation.html
and followed it...that's how i end up here...
Thanks! your suggestion is good...Is there any website i can read on
bitbake opencv??

First of all, please keep your replies on the mailing list so that all may
benefit.

A reasonable place to find out about Angstrom and OE would be
http://www.linuxtogo.org/gowiki/Angstrom

Also http://www.angstrom-distribution.org/

Philip

5

The way I read his command line, he is trying to compile an openCV app
not build openCV. Different task.

6

Hi guys, im trying to compile a opencv codes with the following
commands

[...]

but i get these errors which i cannot solve...

/usr/local/angstrom/arm/lib/gcc/arm-angstrom-linux-gnueabi/
4.3.3/../../../../arm-angstrom-linux-gnueabi/bin/ld: /usr/local/lib/
libcxcore.a(dgesv.o): Relocations in generic ELF (EM: 3)
/usr/local/lib/libcxcore.a: could not read symbols: File in wrong
format
collect2: ld returned 1 exit status

Im using opencv2.0..
can someOne point out my mistakes?? Or possible solutions?

Charlie,

I have an impression that you try to link intel-compiled OpenCV to
your ARM-compiled objects.
Can you show the output of 'file /usr/local/lib/libcxcore.a' ?

regards,
j.