my cross compiler has error.tslib install but has error

jsulm

@MhM93 Picture sharing does not work here. Please post the error text.

"all of the things need /usr/ directory" - why do you want to have the stuff in /usr?

MhM93

git@ubuntu:~/helloqt$ make
arm-linux-g++ -Wl,-rpath-link,/tmp/FriendlyARM/nanopi2/libs/usr/lib -Wl,-O1 -Wl,-rpath,/usr/local/Trolltech/QtEmbedded-4.8.6-arm/lib -o helloqt main.o    -L/tmp/FriendlyARM/nanopi2/libs/usr/lib -L/usr/local/Trolltech/QtEmbedded-4.8.6-arm/lib -L/home/fgit/libts/lib -ltslib -lQtGui -L/usr/local/Trolltech/QtEmbedded-4.8.6-arm/lib -L/tmp/FriendlyARM/nanopi2/libs/usr/lib -lQtNetwork -lQtCore -lpthread 
/home/fgit/libts/libts.so:file not recognized:File format not recognized
collect2: error: ld returned 1 exit status
Makefile:103: recipe for target 'helloqt' failed
make: *** [helloqt] Error 1

that is the error. when I extract the zip file they placed in /usr/local/ directory. I can not change the directory. This toolchain is https://www.mediafire.com/folder/ilkcy37otd7il/NanoPi2Board#a0l72ygtz0797 that I download and install it

SGaist

What does file libts.so return ?

MhM93

fgit@ubuntu:~$ file ~/libts/lib/libts.so
/home/fgit/libts/lib/libts.so: symbolic link to libts.so.0.7.0
fgit@ubuntu:~$ file ~/libts/lib/libts.so.0.7.0 
/home/fgit/libts/lib/libts.so.0.7.0: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=a6de3ac1d75c3420a9ecfb7bd34a42bda7524169, not stripped
fgit@ubuntu:~$

jsulm

@MhM93 You built it for X86 not for ARM...

MhM93

but I do this with my compiler path

export PATH=/usr/local/arm/4.7.0/bin:$PATH
export CROSS_COMPILE=arm-none-linux-gnueabi-
export CC=${CROSS_COMPILE}gcc
export CFLAGS=-march=armv7l
export CXX=${CROSS_COMPILE}"g++" 
export AR=${CROSS_COMPILE}"ar" 
export AS=${CROSS_COMPILE}"as"
export RANLIB=${CROSS_COMPILE}"ranlib"
export LD=${CROSS_COMPILE}"ld"
export STRIP=${CROSS_COMPILE}"strip"
export ac_cv_func_malloc_0_nonnull=yes

SGaist

Check the configure script options. There's something like --host=arm-none-linux-gnueabi IIRC.

MhM93

really thanksssssssssssssssssssssssssss
It compile without error with this command, at last.

sudo ./configure --host=arm-none-linux-gnueabihf --prefix=/home/tslib --enable-shared=yes --enable-static=no

but when I copy the exe file to my arm device it again show me this error:

root@NanoPC-T2:/# tftp 192.168.101.4
tftp> get helloqt
Received 11692 bytes in 0.4 seconds
tftp> quit
root@NanoPC-T2:/# . setqt4env
ctp = 1
root@NanoPC-T2:/# chmod +x helloqt
root@NanoPC-T2:/# ./helloqt -qws &
[1] 1409
root@NanoPC-T2:/# ./helloqt -qws
[1]+  Segmentation fault      ./helloqt -qws
Segmentation fault
root@NanoPC-T2:/# ldd ./helloqt
        not a dynamic executable
root@NanoPC-T2:/# file ./helloqt
./helloqt: ERROR: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3 error reading (Invalid argument)

jsulm

@MhM93 said in my cross compiler has error.tslib install but has error:

[1]+ Segmentation fault ./helloqt -qws

This is another problem. Try to start your app in a debugger to see what happens.
Also why do you start it twice:

root@NanoPC-T2:/# ./helloqt -qws &
[1] 1409
root@NanoPC-T2:/# ./helloqt -qws

?

MhM93

I do not install qt creator to see debug mood in my pc, and also this program is run on nanopc-t2 when I wrote this command it returns :

root@NanoPC-T2:/# strace ./helloqt
execve("./helloqt", ["./helloqt"], [/* 20 vars */]) = 0
brk(NULL)                               = 0x21000
uname({sysname="Linux", nodename="NanoPC-T2", ...}) = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6f67000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x4} ---
+++ killed by SIGSEGV +++
Segmentation fault

Also why do you start it twice:
with silly reason. I just test what happen to run command with & and without it. :)

jsulm

@MhM93 You don't need to install QtCreator to debug (QtCreator itself does not have a debugger). Just install gdb on your target device and use it. It looks like your app is running except you try to run two instances at the same time.

jsulm

@MhM93 See here: http://stackoverflow.com/questions/1656891/problems-with-multiple-qapplications

MhM93

thanks for reply. but i just play one application.
oot@NanoPC-T2:/# rm helloqt
root@NanoPC-T2:/# tftp 192.168.101.4
tftp> get helloqt
Received 11692 bytes in 0.5 seconds
tftp> quit
root@NanoPC-T2:/# chmod +x helloqt
root@NanoPC-T2:/# ./helloqt -qws
Segmentation fault
root@NanoPC-T2:/# file ./helloqt
./helloqt: ERROR: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3 error reading (Invalid argument)
root@NanoPC-T2:/#

SGaist

Again, run it through the debugger.

By the way, what is the exact architecture of your device ?
What Linux distribution are you running on it ?

MhM93

thanks for reply,
I should install debugger on my host or on my target?
this is my device:

root@NanoPC-T2:/# uname -a
Linux NanoPC-T2 3.4.39-s5p4418 #1 SMP PREEMPT Wed Mar 1 13:21:10 HKT 2017 armv7l armv7l armv7l GNU/Linux

when I run gdb on my device (nanopc-t2):

root@NanoPC-T2:/# gdb -q helloqt
"/helloqt": not in executable format: File truncated

and also when I run this:

root@NanoPC-T2:/# sudo readelf -a ./helloqt | grep NEEDED
readelf: Error: Reading 0x618 bytes extends past end of file for section headers
readelf: Error: Section headers are not available!
 0x00000001 (NEEDED)

Is that mean my header is wrong?
this is my code:

#include <QApplication>
#include <QPushButton>
int main(int argc, char **argv)
{
        QApplication app (argc, argv);
        QPushButton button ("Hello world !");
        button.show();
        return app.exec();
}

SGaist

Looks like there is a problem with your file. How are you copying it over to your device ?

MhM93

*I copy it by tftp. First I copy it from ubuntu vmware to windows then wrote this command to copy it to my device:

tftp 192.168.101.4
tftp>get helloqt
//after transfering.....
tftp>quit

first run this command

. setqt4env

and after that run this command, I make my file runable with this command:

chmod +x helloqt

then I run it with this command but that error show to me:

./helloqt -qws

................................................................................................................................................................................
FINALLY RUN MY APP ON ME DEVICE BUT MAKE A LOT OF QUESTION FOR ME:
.............................................................................................................................................................................
I set my ssh to deploy the qt (from vmware ubuntu to my nanopc) also set this to .pro file:

#-------------------------------------------------
#
# Project created by QtCreator 2017-05-13T01:48:28
#
#-------------------------------------------------

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

target.path = ~/helloqt
INSTALLS += target

TARGET =
TEMPLATE = app


SOURCES += main.cpp\
       mainwindow.cpp

HEADERS  += mainwindow.h

FORMS    += mainwindow.ui

and set -qws in argument and suddenly see the project run on my device BUT the touch is not worked
when I copy the file to my device as I said above* the app is can not run. what is the different from my code runable and qt runable app?

SGaist

Why don't you upload it directly to your device ?
Using e.g. scp ?

MhM93

sorry , but what is SCP?
I don't know other way to transferring my app to my device

jsulm

@MhM93 Why don't you use Google?
First match there for "scp" is: https://en.wikipedia.org/wiki/Secure_copy