Problem cross-compiling Qt5 from Ubuntu to Raspbian(Raspberry pi3)

SGaist

The same way you use your other cross-compiler.

BadBlood

The problem is that I found 5 different folder that seem to be cross-compiler and I don' t know which to chose:

In the folder /tools/arm-bcm2708 i found these folders:

arm-bcm2708hardfp-linux-gnueabi  gcc-linaro-arm-linux-gnueabihf-raspbian
arm-bcm2708-linux-gnueabi        gcc-linaro-arm-linux-gnueabihf-raspbian-x64
arm-rpi-4.9.3-linux-gnueabihf

which should I use? Moreover Could you tell me even the reason of your choice, because I would like to know in which case i should use other cross compilers. Thank you so much.

PS: I have a raspberry pi3, and I downloaded the 2017-04-10-raspbian-jessie.img image from http://downloads.raspberrypi.org/raspbian_latest

SGaist

I usually select the cross-compiler that matches what was used to build the distribution running on the given device.

In the case of the tools, 4.9.3 is the most recent, the others are several years old and don't make sense to use since you are running the latest image on your device.

Technically 4.9.3 is also not the most recent version of GCC but AFAIK it matches the one used to build the raspbian image.

BadBlood

thank you SGaist, but how could you know the compiler used to build the distribution?

However as now I have the cross-compiler I used the cross-compile-tools I downloaded from the wiki to fix symlinks(what are they?) and lib paths(as the wiki says) . So I command:

cd ~/opt/cross-compile-tools sudo ./fixQualifiedLibraryPaths /mnt/rasp-pi-rootfs/ ~/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc

But i don' think there was some changes, because I tried to modify the path, and I inserted a wrong one, but the command didn' t return any error. Moreover it seemed no time spended to execute the command.

SGaist

Usually looking at the compiler package provided by the distribution provides that info.

The script itself is pretty fast.

Which version of the script did you use exactly ?

BadBlood

I don' t know. The script is called fixQualifiedLibraryPaths and I have only the code, no infos about the version:

#!/bin/bash
#This script is ugly, feel free to fix it

if [ "$#" -ne 1 ]; then
    echo "usage ./cmd target-rootfs"
    exit -1
fi

#passed args
ROOTFS=$1
TOOLCHAIN=arm-linux-gnueabihf

INITIAL_DIR=$PWD

function adjustSymLinks
{
    echo "Adjusting the symlinks in $1 to be relative"
    cd $1
    find . -maxdepth 1 -type l | while read i;
    do qualifies=$(file $i | sed -e "s/.*\`\(.*\)'/\1/g" | grep ^/lib)
    if [ -n "$qualifies" ]; then
    newPath=$(file $i | sed -e "s/.*\`\(.*\)'/\1/g" | sed -e "s,\`,,g" | sed -e "s,',,g" | sed -e "s,^/lib,$2/lib,g");
    echo $i
    echo $newPath;
    sudo rm $i;
    sudo ln -s $newPath $i;
    fi
    done
    cd $INITIAL_DIR
}

adjustSymLinks $ROOTFS/usr/lib "../.."

echo "Testing for existence of potential debian multi-arch dir: $DEB_MULTI_ARCH_MADNESS"

if [ -n "$DEB_MULTI_ARCH_MADNESS" -a -e "$DEB_MULTI_ARCH_MADNESS" ]; then
    echo "Debian multiarch dir exists, adjusting"
    adjustSymLinks $DEB_MULTI_ARCH_MADNESS "../../.."
fi

Have you a script you are sure that it will work well? I am trying to cross-compile Qt5

SGaist

You should have some feedback. One thing I'd do use the full path rather than ~.

BadBlood

Hi SGaist,

yes I tried to use the full path by command:

./fixQualifiedLibraryPaths /mnt/rasp-pi-rootfs /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc

and what I receiced was this error:

usage ./cmd target-rootfs

Well at that poiint I tried to run this command without the cross compiler path:

./fixQualifiedLibraryPaths /mnt/rasp-pi-rootfs

And I received this:

Adjusting the symlinks in /mnt/rasp-pi-rootfs/usr/lib to be relative
Testing for existence of potential debian multi-arch dir:

But I don' t think it is right as I didn' t use any cross compiler in the command, infact when I after run the command to cross compile, it happened:

<srcbase> = /home/michele/opt/qt5/qtbase 
<outbase> = /home/michele/opt/qt5/qtbase 
Creating qmake...
.Done.

This is the Qt Open Source Edition.

You have already accepted the terms of the Open Source license.

Running configuration tests...
Done running configuration tests.

Configure summary:

Building on: linux-g++ (x86_64, CPU features: mmx sse sse2)
Building for: devices/linux-rasp-pi-g++ (arm, CPU features: <none>)
Configuration: cross_compile compile_examples enable_new_dtags largefile precompile_header shared rpath accessibility release c++11 concurrent dbus mremap reduce_exports release_tools stl
Build options:
  Mode ................................... release; optimized tools
  Building shared libraries .............. yes
  Using C++ standard ..................... C++11
  Using gold linker ...................... no
  Using new DTAGS ........................ yes
  Using precompiled headers .............. yes
  Using LTCG ............................. no
  Target compiler supports:
    NEON ................................. no
  Build parts ............................ libs
Qt modules and options:
  Qt Concurrent .......................... yes
  Qt D-Bus ............................... yes
  Qt D-Bus directly linked to libdbus .... no
  Qt Gui ................................. yes
  Qt Network ............................. yes
  Qt Sql ................................. yes
  Qt Testlib ............................. yes
  Qt Widgets ............................. yes
  Qt Xml ................................. yes
Support enabled for:
  Accessibility .......................... yes
  Using pkg-config ....................... yes
  QML debugging .......................... yes
  udev ................................... no
  Using system zlib ...................... yes
Qt Core:
  DoubleConversion ....................... yes
    Using system DoubleConversion ........ no
  GLib ................................... no
  iconv .................................. yes
  ICU .................................... no
  Logging backends:
    journald ............................. no
    syslog ............................... no
    slog2 ................................ no
  Using system PCRE ...................... no
Qt Network:
  getaddrinfo() .......................... yes
  getifaddrs() ........................... yes
  IPv6 ifname ............................ yes
  libproxy ............................... no
  OpenSSL ................................ no
    Qt directly linked to OpenSSL ........ no
  SCTP ................................... no
  Use system proxies ..................... yes
Qt Sql:
  DB2 (IBM) .............................. no
  InterBase .............................. no
  MySql .................................. no
  OCI (Oracle) ........................... no
  ODBC ................................... no
  PostgreSQL ............................. no
  SQLite2 ................................ no
  SQLite ................................. yes
    Using system provided SQLite ......... no
  TDS (Sybase) ........................... no
Qt Gui:
  FreeType ............................... yes
    Using system FreeType ................ yes
  HarfBuzz ............................... yes
    Using system HarfBuzz ................ no
  Fontconfig ............................. no
  Image formats:
    GIF .................................. no
    ICO .................................. no
    JPEG ................................. no
      Using system libjpeg ............... no
    PNG .................................. yes
      Using system libpng ................ yes
  OpenGL:
    EGL .................................. yes
    Desktop OpenGL ....................... no
    OpenGL ES 2.0 ........................ yes
    OpenGL ES 3.0 ........................ no
    OpenGL ES 3.1 ........................ no
  Session Management ..................... yes
Features used by QPA backends:
  evdev .................................. yes
  libinput ............................... no
  mtdev .................................. no
  tslib .................................. no
  xkbcommon-evdev ........................ no
QPA backends:
  DirectFB ............................... no
  EGLFS .................................. yes
  EGLFS details:
    EGLFS i.Mx6 .......................... no
    EGLFS i.Mx6 Wayland .................. no
    EGLFS EGLDevice ...................... no
    EGLFS GBM ............................ no
    EGLFS Mali ........................... no
    EGLFS Raspberry Pi ................... yes
    EGL on X11 ........................... no
  LinuxFB ................................ yes
  Mir client ............................. no
Qt Widgets:
  GTK+ ................................... no
  Styles ................................. Fusion Windows
Qt PrintSupport:
  CUPS ................................... no

Note: Also available for Linux: linux-clang linux-kcc linux-icc linux-cxx

Note: -optimized-tools is not useful in -release mode.

Qt is now configured for building. Just run 'make'.
Once everything is built, you must run 'make install'.
Qt will be installed into '/mnt/rasp-pi-rootfs/usr/local/qt5pi'.

Prior to reconfiguration, make sure you remove any leftovers from
the previous build.

Then i run make -j4 and I receveid this error:

cd src/ && ( test -e Makefile || /home/michele/opt/qt5/qtbase/bin/qmake -o Makefile /home/michele/opt/qt5/qtbase/src/src.pro ) && make -f Makefile 
cd qmake/ && ( test -e Makefile.qmake-aux || /home/michele/opt/qt5/qtbase/bin/qmake -o Makefile.qmake-aux /home/michele/opt/qt5/qtbase/qmake/qmake-aux.pro ) && make -f Makefile.qmake-aux 
cd doc/ && ( test -e Makefile || /home/michele/opt/qt5/qtbase/bin/qmake -o Makefile /home/michele/opt/qt5/qtbase/doc/doc.pro ) && make -f Makefile 
make[1]: Entering directory '/home/michele/opt/qt5/qtbase/qmake'
make binary
make[1]: Entering directory '/home/michele/opt/qt5/qtbase/doc'
/home/michele/opt/qt5/qtbase/bin/qmake -o Makefile doc.pro
make[2]: Entering directory '/home/michele/opt/qt5/qtbase/qmake'
g++ -c -o qlibraryinfo_final.o  -pipe -std=c++11 -ffunction-sections -O2 -g  -I/home/michele/opt/qt5/qtbase/qmake -I/home/michele/opt/qt5/qtbase/qmake/library -I/home/michele/opt/qt5/qtbase/qmake/generators -I/home/michele/opt/qt5/qtbase/qmake/generators/unix -I/home/michele/opt/qt5/qtbase/qmake/generators/win32 -I/home/michele/opt/qt5/qtbase/qmake/generators/mac -I../include -I../include/QtCore -I../include/QtCore/5.8.1 -I../include/QtCore/5.8.1/QtCore -I../src/corelib/global -I/home/michele/opt/qt5/qtbase/mkspecs/linux-g++ -DQT_VERSION_STR=\"5.8.1\" -DQT_VERSION_MAJOR=5 -DQT_VERSION_MINOR=8 -DQT_VERSION_PATCH=1 -DQT_BUILD_QMAKE -DQT_BOOTSTRAPPED -DPROEVALUATOR_FULL -DQT_NO_FOREACH /home/michele/opt/qt5/qtbase/src/corelib/global/qlibraryinfo.cpp
make[1]: Entering directory '/home/michele/opt/qt5/qtbase/src'
/home/michele/opt/qt5/qtbase/bin/qmake -o Makefile src.pro
Failure to open file: /home/michele/opt/qt5/qtbase/doc/Makefile
Unable to generate makefile for: doc.pro
Makefile:152: recipe for target 'Makefile' failed
make[1]: *** [Makefile] Error 5
make[1]: Leaving directory '/home/michele/opt/qt5/qtbase/doc'
Makefile:146: recipe for target 'sub-doc-make_first' failed
make: *** [sub-doc-make_first] Error 2
make: *** Waiting for unfinished jobs....
Failure to open file: /home/michele/opt/qt5/qtbase/src/Makefile
Unable to generate makefile for: src.pro
Makefile:780: recipe for target 'Makefile' failed
make[1]: *** [Makefile] Error 5
make[1]: Leaving directory '/home/michele/opt/qt5/qtbase/src'
Makefile:46: recipe for target 'sub-src-make_first' failed
make: *** [sub-src-make_first] Error 2
g++ -o "../qmake/qmake" project.o option.o property.o main.o ioutils.o proitems.o qmakevfs.o qmakeglobals.o qmakeparser.o qmakeevaluator.o qmakebuiltins.o makefile.o unixmake2.o unixmake.o mingw_make.o winmakefile.o projectgenerator.o meta.o makefiledeps.o metamakefile.o xmloutput.o pbuilder_pbx.o msvc_vcproj.o msvc_vcxproj.o msvc_nmake.o msvc_objectmodel.o msbuild_objectmodel.o qtextcodec.o qutfcodec.o qstring.o qstring_compat.o qstringbuilder.o qtextstream.o qiodevice.o qringbuffer.o qdebug.o qmalloc.o qglobal.o qarraydata.o qbytearray.o qbytearraymatcher.o qdatastream.o qbuffer.o qlist.o qfiledevice.o qfile.o qfilesystementry.o qfilesystemengine.o qfsfileengine.o qfsfileengine_iterator.o qregexp.o qbitarray.o qdir.o qdiriterator.o quuid.o qhash.o qfileinfo.o qdatetime.o qstringlist.o qabstractfileengine.o qtemporaryfile.o qmap.o qmetatype.o qsettings.o qsystemerror.o qvariant.o qvsnprintf.o qlocale.o qlocale_tools.o qlinkedlist.o qnumeric.o qcryptographichash.o qxmlstream.o qxmlutils.o qlogging.o qjson.o qjsondocument.o qjsonparser.o qjsonarray.o qjsonobject.o qjsonvalue.o qfilesystemengine_unix.o qfilesystemiterator_unix.o qfsfileengine_unix.o qlocale_unix.o  qlibraryinfo_final.o   -Wl,--gc-sections
make[2]: Leaving directory '/home/michele/opt/qt5/qtbase/qmake'
make[1]: Leaving directory '/home/michele/opt/qt5/qtbase/qmake'

Note:
(The path of the cross-compiler is consistent as i tried to do:

cd /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin

)

SGaist

Your log is not complete, please restart without the -j parameter so you can have the exact point of failure.

jm1776

@BadBlood The sample commands are wrong. Either you need to && between the individual commands, or run then individually. For example:

./configure -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5pi -hostprefix /usr/local/qt5pi && make -j 4 && sudo make install

OR

> ./configure -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5pi -hostprefix /usr/local/qt5pi
> make -j 4
> sudo make install

Also, maybe try to git from github:

> git clone https://github.com/qt/qtbase.git -b 5.8

Change 2) Compiling qt base:

> cd ~/opt/cross-compile-tools
> sudo ./fixQualifiedLibraryPaths /mnt/rasp-pi-rootfs/ ~/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-gcc

Also, take a look at this bug if you're using raspberrypi/tools:
Update toolchain to support gcc 4.9 raspi3/jessie #73

BadBlood

Thank you very much guys,

I had some problems with cross-compiling and I couldn' t to reply to SGaist. Thank you for && advice, i didn' t know that, and thank you for the link.

I couldn' t reply to SGaist beacuse I wanted to repeat all passages: I had problems with the cross compiling configuration command. In particular when I run the command:

./configure -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=/home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5pi -hostprefix /usr/local/qt5pi

I received this error:

<srcbase> = /home/michele/opt/qt5/qtbase 
<outbase> = /home/michele/opt/qt5/qtbase 
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/animation/ { qabstractanimation.h (1), qabstractanimation_p.h (1), qanimationgroup.h (1), qanimationgroup_p.h (1), qparallelanimationgroup.h (1), qparallelanimationgroup_p.h (1), qpauseanimation.h (1), qpropertyanimation.h (1), qpropertyanimation_p.h (1), qsequentialanimationgroup.h (1), qsequentialanimationgroup_p.h (1), qvariantanimation.h (1), qvariantanimation_p.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/arch/ { qatomic_bootstrap.h (1), qatomic_cxx11.h (1), qatomic_msvc.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/codecs/ { cp949codetbl_p.h (1), qbig5codec_p.h (1), qeucjpcodec_p.h (1), qeuckrcodec_p.h (1), qgb18030codec_p.h (1), qiconvcodec_p.h (1), qicucodec_p.h (1), qisciicodec_p.h (1), qjiscodec_p.h (1), qjpunicode_p.h (1), qlatincodec_p.h (1), qsimplecodec_p.h (1), qsjiscodec_p.h (1), qtextcodec.h (1), qtextcodec_p.h (1), qtsciicodec_p.h (1), qutfcodec_p.h (1), qwindowscodec_p.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/global/ { qcompilerdetection.h (1), qconfig-bootstrapped.h (1), qendian.h (2), qflags.h (1), qglobal.h (2), qglobal_p.h (1), qglobalstatic.h (1), qhooks_p.h (1), qisenum.h (1), qlibraryinfo.h (1), qlogging.h (1), qnamespace.h (2), qnumeric.h (2), qnumeric_p.h (1), qprocessordetection.h (1), qsysinfo.h (1), qsystemdetection.h (1), qt_pch.h (1), qt_windows.h (1), qtypeinfo.h (1), qtypetraits.h (1), qversiontagging.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/io/ { qabstractfileengine_p.h (1), qbuffer.h (1), qdatastream.h (1), qdatastream_p.h (1), qdataurl_p.h (1), qdebug.h (2), qdebug_p.h (1), qdir.h (1), qdir_p.h (1), qdiriterator.h (1), qfile.h (1), qfile_p.h (1), qfiledevice.h (1), qfiledevice_p.h (1), qfileinfo.h (1), qfileinfo_p.h (1), qfileselector.h (1), qfileselector_p.h (1), qfilesystemengine_p.h (1), qfilesystementry_p.h (1), qfilesystemiterator_p.h (1), qfilesystemmetadata_p.h (1), qfilesystemwatcher.h (1), qfilesystemwatcher_fsevents_p.h (1), qfilesystemwatcher_inotify_p.h (1), qfilesystemwatcher_kqueue_p.h (1), qfilesystemwatcher_p.h (1), qfilesystemwatcher_polling_p.h (1), qfilesystemwatcher_win_p.h (1), qfsfileengine_iterator_p.h (1), qfsfileengine_p.h (1), qiodevice.h (1), qiodevice_p.h (1), qipaddress_p.h (1), qlockfile.h (1), qlockfile_p.h (1), qloggingcategory.h (1), qloggingregistry_p.h (1), qnoncontiguousbytedevice_p.h (1), qprocess.h (1), qprocess_p.h (1), qresource.h (1), qresource_iterator_p.h (1), qresource_p.h (1), qsavefile.h (1), qsavefile_p.h (1), qsettings.h (1), qsettings_p.h (1), qstandardpaths.h (1), qstorageinfo.h (1), qstorageinfo_p.h (1), qtemporarydir.h (1), qtemporaryfile.h (1), qtemporaryfile_p.h (1), qtextstream.h (1), qtextstream_p.h (1), qtldurl_p.h (1), qurl.h (1), qurl_p.h (1), qurlquery.h (1), qurltlds_p.h (1), qwindowspipereader_p.h (1), qwindowspipewriter_p.h (1), qwinoverlappedionotifier_p.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/itemmodels/ { qabstractitemmodel.h (1), qabstractitemmodel_p.h (1), qabstractproxymodel.h (1), qabstractproxymodel_p.h (1), qidentityproxymodel.h (1), qitemselectionmodel.h (1), qitemselectionmodel_p.h (1), qsortfilterproxymodel.h (1), qstringlistmodel.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/json/ { qjson_p.h (1), qjsonarray.h (1), qjsondocument.h (1), qjsonobject.h (1), qjsonparser_p.h (1), qjsonvalue.h (1), qjsonwriter_p.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/kernel/ { qabstracteventdispatcher.h (1), qabstracteventdispatcher_p.h (1), qabstractnativeeventfilter.h (1), qbasictimer.h (1), qcfsocketnotifier_p.h (1), qcore_mac_p.h (1), qcore_unix_p.h (1), qcoreapplication.h (1), qcoreapplication_p.h (1), qcorecmdlineargs_p.h (1), qcoreevent.h (1), qcoreglobaldata_p.h (1), qdeadlinetimer.h (1), qdeadlinetimer_p.h (1), qelapsedtimer.h (1), qeventdispatcher_cf_p.h (1), qeventdispatcher_glib_p.h (1), qeventdispatcher_unix_p.h (1), qeventdispatcher_win_p.h (1), qeventdispatcher_winrt_p.h (1), qeventloop.h (1), qeventloop_p.h (1), qfunctions_fake_env_p.h (1), qfunctions_nacl.h (1), qfunctions_p.h (1), qfunctions_vxworks.h (1), qfunctions_winrt.h (1), qjni_p.h (1), qjnihelpers_p.h (1), qmath.h (1), qmetaobject.h (1), qmetaobject_moc_p.h (1), qmetaobject_p.h (1), qmetaobjectbuilder_p.h (1), qmetatype.h (1), qmetatype_p.h (1), qmetatypeswitcher_p.h (1), qmimedata.h (1), qobject.h (1), qobject_impl.h (1), qobject_p.h (1), qobjectcleanuphandler.h (1), qobjectdefs.h (1), qobjectdefs_impl.h (1), qpointer.h (1), qpoll_p.h (1), qppsattribute_p.h (1), qppsattributeprivate_p.h (1), qppsobject_p.h (1), qppsobjectprivate_p.h (1), qsharedmemory.h (1), qsharedmemory_p.h (1), qsignalmapper.h (1), qsocketnotifier.h (1), qsystemerror_p.h (1), qsystemsemaphore.h (1), qsystemsemaphore_p.h (1), qtimer.h (1), qtimerinfo_unix_p.h (1), qtranslator.h (1), qtranslator_p.h (1), qvariant.h (4), qvariant_p.h (1), qwineventnotifier.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/mimetypes/ { qmimedatabase.h (1), qmimedatabase_p.h (1), qmimeglobpattern_p.h (1), qmimemagicrule_p.h (1), qmimemagicrulematcher_p.h (1), qmimeprovider_p.h (1), qmimetype.h (1), qmimetype_p.h (1), qmimetypeparser_p.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/plugin/ { qelfparser_p.h (1), qfactoryinterface.h (1), qfactoryloader_p.h (1), qlibrary.h (1), qlibrary_p.h (1), qmachparser_p.h (1), qplugin.h (2), qpluginloader.h (1), qsystemlibrary_p.h (1), quuid.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/statemachine/ { qabstractstate.h (1), qabstractstate_p.h (1), qabstracttransition.h (1), qabstracttransition_p.h (1), qeventtransition.h (1), qeventtransition_p.h (1), qfinalstate.h (1), qfinalstate_p.h (1), qhistorystate.h (1), qhistorystate_p.h (1), qsignaleventgenerator_p.h (1), qsignaltransition.h (1), qsignaltransition_p.h (1), qstate.h (1), qstate_p.h (1), qstatemachine.h (1), qstatemachine_p.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/thread/ { qatomic.h (1), qbasicatomic.h (1), qexception.h (1), qfuture.h (1), qfutureinterface.h (1), qfutureinterface_p.h (1), qfuturesynchronizer.h (1), qfuturewatcher.h (1), qfuturewatcher_p.h (1), qgenericatomic.h (1), qmutex.h (1), qmutex_p.h (1), qmutexpool_p.h (1), qorderedmutexlocker_p.h (1), qreadwritelock.h (1), qreadwritelock_p.h (1), qresultstore.h (1), qrunnable.h (1), qsemaphore.h (1), qthread.h (1), qthread_p.h (1), qthreadpool.h (1), qthreadpool_p.h (1), qthreadstorage.h (1), qwaitcondition.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/tools/ { qalgorithms.h (2), qarraydata.h (1), qarraydataops.h (1), qarraydatapointer.h (1), qbitarray.h (1), qbytearray.h (1), qbytearray_p.h (1), qbytearraylist.h (1), qbytearraymatcher.h (1), qbytedata_p.h (1), qcache.h (1), qchar.h (1), qcollator.h (1), qcollator_p.h (1), qcommandlineoption.h (1), qcommandlineparser.h (1), qcontainerfwd.h (2), qcontiguouscache.h (1), qcryptographichash.h (1), qdatetime.h (1), qdatetime_p.h (1), qdatetimeparser_p.h (1), qdoublescanprint_p.h (1), qeasingcurve.h (1), qfreelist_p.h (1), qharfbuzz_p.h (1), qhash.h (1), qhashfunctions.h (1), qiterator.h (1), qline.h (1), qlinkedlist.h (1), qlist.h (1), qlocale.h (1), qlocale_data_p.h (1), qlocale_p.h (1), qlocale_tools_p.h (1), qmap.h (1), qmargins.h (1), qmessageauthenticationcode.h (1), qpair.h (1), qpodlist_p.h (1), qpoint.h (1), qqueue.h (1), qrect.h (1), qrefcount.h (1), qregexp.h (1), qregularexpression.h (1), qringbuffer_p.h (1), qscopedpointer.h (1), qscopedpointer_p.h (1), qscopedvaluerollback.h (1), qset.h (1), qshareddata.h (1), qsharedpointer.h (1), qsharedpointer_impl.h (1), qsimd_p.h (1), qsize.h (1), qstack.h (1), qstring.h (1), qstringalgorithms_p.h (1), qstringbuilder.h (1), qstringiterator_p.h (1), qstringlist.h (1), qstringmatcher.h (1), qtextboundaryfinder.h (1), qtimeline.h (1), qtimezone.h (1), qtimezoneprivate_data_p.h (1), qtimezoneprivate_p.h (1), qtools_p.h (1), qunicodetables_p.h (1), qunicodetools_p.h (1), qvarlengtharray.h (1), qvector.h (1), qversionnumber.h (1) }
QtCore: created fwd-include header(s) for <srcbase>/src/corelib/xml/ { qxmlstream.h (1), qxmlstream_p.h (1), qxmlutils_p.h (1) }
Creating qmake...
.......................................................................................Done.
Info: creating cache file /home/michele/opt/qt5/qtbase/.qmake.cache
Info: creating stash file /home/michele/opt/qt5/qtbase/.qmake.stash

This is the Qt Open Source Edition.

You have already accepted the terms of the Open Source license.

Running configuration tests...
Checking for gold linker... no
Checking for machine tuple... yes
Checking for valid makespec... Note: Also available for Linux: linux-clang linux-kcc linux-icc linux-cxx

ERROR: Cannot compile a minimal program. The toolchain or QMakeSpec is broken.

Check config.log for details.

So I check the config.log and his content is this:

config.log

Command line: -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=/home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5pi -hostprefix /usr/local/qt5pi
executing config test use_gold_linker
+ cd /home/michele/opt/qt5/qtbase/config.tests && /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ -fuse-ld=gold -o conftest-out conftest.cpp
> collect2: fatal error: cannot find 'ld'
> compilation terminated.
test config.qtbase.tests.use_gold_linker FAILED
executing config test machineTuple
+ /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ -dumpmachine
> arm-linux-gnueabihf
test config.qtbase.tests.machineTuple succeeded
executing config test verifyspec
+ cd /home/michele/opt/qt5/qtbase/config.tests/common/verifyspec && /home/michele/opt/qt5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared console" "QMAKE_CFLAGS += --sysroot=/mnt/rasp-pi-rootfs" "QMAKE_CXXFLAGS += --sysroot=/mnt/rasp-pi-rootfs" "QMAKE_LFLAGS += --sysroot=/mnt/rasp-pi-rootfs" -early "CONFIG += cross_compile" /home/michele/opt/qt5/qtbase/config.tests/common/verifyspec
> Info: creating stash file /home/michele/opt/qt5/qtbase/config.tests/.qmake.stash
+ cd /home/michele/opt/qt5/qtbase/config.tests/common/verifyspec && MAKEFLAGS= /usr/bin/make
> /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/mnt/rasp-pi-rootfs -O2 -std=gnu++11 -Wall -W -fPIC  -I. -I/home/michele/opt/qt5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o verifyspec.o verifyspec.cpp
> /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ -Wl,-rpath-link,/mnt/rasp-pi-rootfs/opt/vc/lib -Wl,-rpath-link,/mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/mnt/rasp-pi-rootfs/lib/arm-linux-gnueabihf -mfloat-abi=hard --sysroot=/mnt/rasp-pi-rootfs -Wl,-O1 -o verifyspec verifyspec.o    
> /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.9.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find crt1.o: No such file or directory
> /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.9.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find crti.o: No such file or directory
> /home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.9.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lm
> collect2: error: ld returned 1 exit status
> Makefile:64: recipe for target 'verifyspec' failed
> make: *** [verifyspec] Error 1

BadBlood

@SGaist said in Problem cross-compiling Qt5 from Ubuntu to Raspbian(Raspberry pi3):

Your log is not complete, please restart without the -j parameter so you can have the exact point of failure.

Hi SGaist, sorry for delay

The problem was the cross compiler, if I made the configuration with 4.9.3 v. It returned me the error I attached, but if I use the other one(4.7) cross compiling configuration works fine.

However when i run "make" I had the error. As the log is too big to attach here, i will send you the one drive link to the log file containng the error I received.

https://1drv.ms/f/s!As3fa8j7GVzZl3jMIGjxQEDF-nuJ

SGaist

I can't see any error in the file you shared.

BadBlood

Sorry but the files was cutted. Now i have the correct one:

https://1drv.ms/u/s!As3fa8j7GVzZl3pQPdL3ROQsNCpe

SGaist

You can try the workaround described here.

BadBlood

Hi SGaist,

I had another error but the last disappered, i will link the log file.

https://1drv.ms/u/s!As3fa8j7GVzZl3som_ciawx9hu50

First lines were cutted, but there are the most important about the error.

SGaist

I'd still opt for changing to a more recent version of gcc like 4.9

BadBlood

I tried to use gcc 4.9, but it returns the error during cross compiling configuration, I linked few weeks ago. The cross compiler I chose is in the directory:

/home/michele/opt/tools/arm-bcm2708/arm-rpi-4.9.3-linux-gnueabihf/bin

BadBlood

I was able to create a raspbian with Qt5 following the guide at this link:

https://medium.com/@amirmann/how-to-cross-compile-qt-for-raspberry-pi-3-on-linux-ubuntu-for-beginners-75acf2a078c

Next I put the image onto SD card, and there was all files.
But i had problems to find raspberry with the laptop through QT5 running on that, I' m going to open an other topic for that. Thank you.

TV_man

If it hasn't already been noticed the path setting script checks the number of parameters passed and is expecting 1 but 2 are being passed. I changed "$#" -ne 1 to "$#" -ne 2 and it ran without the error message.

The second parameter is used in the script so it is needed.

However I now get an error 'Cannot run compiler '/home/sam/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++'

(It does exist there)