Cross compilation with X11

SGaist

You're welcome !

Since you have your application working now, please update the thread title prepending [solved] so other forum users may know a solution has been found :)

ChaitraMohan

Hi,

Ya sure I will do it.
I have one more problem. Keyboard is not working after running the application.
How can I enable it?

SGaist

How are you starting your application ? What type of keyboard is it ?

ChaitraMohan

I am using USB Keyboard.
I am starting the application by giving the command in the terminal:
@./Test_app@

Keyboard works till application runs after application start running it doesn't work.

SGaist

Still using X11 ?

ChaitraMohan

Yes Qt application running on X11.

thanga

@SGaist
Hi, I have followed same steps. It's works.
Is it possible build without target device ?
Could you please help me on this. Thanks in advance!

jsulm

@thanga said in [SOLVED]Qt cross compilation with X11:

Is it possible build without target device ?

Can you explain what you mean?
You can build without target device if you have a sysroot for it.

thanga

@jsulm

I have mounted target device on /media/SSHFS_X11/ path on host machine (Ubuntu). While mounted Qt getting build, If I disconnect the target device. I am getting following error:
Basic XLib functionality test failed!
You might need to modify the include and library search paths by editing
QMAKE_INCDIR_X11 and QMAKE_LIBDIR_X11 in /home/lolveley/bin/qt-x11-opensource-src-4.5.1/mkspecs/linux-g++.

May I know how to build without target device ? And how to configure sysroot on host (Ubuntu) machine ?

Could you please help me on this...

jsulm

@thanga Just create a directory and copy the content of your target device to that directory. Then use this directory as your sysroot instead of /media/SSHFS_X11.

thanga

@jsulm
I have copied /usr dir files to /media/SSHFS_X11, and tried to build But still and getting following error,
Basic XLib functionality test failed!
You might need to modify the include and library search paths by editing
QMAKE_INCDIR_X11 and QMAKE_LIBDIR_X11 in /home/lolveley/bin/qt-x11-opensource-src-4.5.1/mkspecs/linux-g++.

Is it required to copy all the contents or /usr dir is fine?

Target device also Ubuntu OS stand alone device.

jsulm

@thanga You need to copy everything what is needed. You should copy at least /usr/lib and /usr/include, probably /lib as well.
It should then look like:

/media/SSHFS_X11/usr/include
/media/SSHFS_X11/usr/lib
/media/SSHFS_X11/lib

Call configure with -v parameter to see what exactly is missing if it says "Basic XLib functionality test failed!".

SGaist

If you don't use the same folder as you did when configuring the first time then you should point configure to the new location. Note that you should do a build from scratch to avoid any leftovers from interfering.

thanga

@jsulm
I have copied /usr/lib, /usr/include and /lib files to /media/SSHFS_X11/. I am getting following error now,

/media/SSHFS_X11/usr/include/./X11/Xlib.h:38:23: fatal error: sys/types.h: No such file or directory
compilation terminated.
make: *** [xlib.o] Error 1
XLib disabled.
Basic XLib functionality test failed!
You might need to modify the include and library search paths by editing
QMAKE_INCDIR_X11 and QMAKE_LIBDIR_X11 in /home/user/qt-everywhere-opensource-src-4.8.6/mkspecs/qws/linux-arm-linaro-g++.

jsulm

@thanga said in [SOLVED]Qt cross compilation with X11:

sys/types.h

Does this header file exist in /media/SSHFS_X11/usr/include ?

thanga

@jsulm

No. sys/types.h file is not available. But following files are present on /media/SSHFS_X11/usr/include.

aio.h crypt.h FLAC i386-linux-gnu ltdl.h neteconet protocols setjmp.h sudo_plugin.h utmp.h
aliases.h ctype.h fmtmsg.h iconv.h malloc.h netinet pthread.h sgtty.h syscall.h utmpx.h
alloca.h dbus-1.0 fnmatch.h ieee754.h math.h netipx pty.h shadow.h sysexits.h values.h
a.out.h dirent.h fstab.h ifaddrs.h mcheck.h netiucv pwd.h signal.h syslog.h video
argp.h dlfcn.h fts.h inttypes.h memory.h netpacket python2.7 sndfile.h tar.h vorbis
argz.h drm ftw.h langinfo.h mm netrom rdma sndfile.hh termio.h wait.h
ar.h elf.h _G_config.h lastlog.h mntent.h netrose re_comp.h sound termios.h wchar.h
arpa endian.h gconv.h libdrm monetary.h nfs regex.h spawn.h tgmath.h wctype.h
asm-generic envz.h getopt.h libgen.h mqueue.h nl_types.h regexp.h stab.h thread_db.h wordexp.h
assert.h err.h gettext-po.h libintl.h mtd nouveau resolv.h stdint.h time.h X11
autoopts errno.h GL libio.h nautilus-sendto nss.h rpc stdio_ext.h ttyent.h xcb
autosprintf.h error.h glob.h libltdl net obstack.h rpcsvc stdio.h ucontext.h xen
byteswap.h execinfo.h gnu-versions.h limits.h netash ogg sched.h stdlib.h ulimit.h xf86drm.h
c++ fcntl.h grp.h link.h netatalk paths.h scsi string.h unistd.h xf86drmMode.h
complex.h features.h gshadow.h linux netax25 poll.h search.h strings.h ustat.h xlocale.h
cpio.h fenv.h gstreamer-0.10 locale.h netdb.h printf.h semaphore.h stropts.h utime.h xorg

SGaist

Did you do a full copy of the sysroot over to your desktop ?

On a side note, unless you're locked to that version, at least use the latest of the Qt 4 series which is 4.8.7. Even better if you migrate to Qr 5.

thanga

@SGaist

Yes. I have copied all the files. May I know how to configured sysroot on local desktop ? Could please tell me the steps.

jsulm

@thanga "Could please tell me the steps" - we already did.
Does this file exist on your target device?
Did you copy recursively (I mean: including subdirectories)?

thanga

@jsulm
Thanks!! I have copied target device files, I can able to create QT qmake file now.

I need build application without adding target device on Qt Creator. is it possible to build like this ??