Cannot properly ./configure to install Qt with eglfs and opegles2 support.

Jeremias Ramirez

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Oct 21, 2020, 10:11:31 AM10/21/20

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Hello to everyone.

I'm Jeremias, from Argentina.

Recently I started working with the BBB and Qt software.

Tooks me a long time, but i finally be able to install it and make some tests.

But, i never can run an app using eglfs, when I run an Qt example project , i get:

Could not find the Qt platform plugin "eglfs" in ""

After a time, i see i never install so many things within the Qt installation, so i read a lot and i start over again.

But, in the ./configure step, i got this error:

My configure:

sudo ./configure -no-gcc-sysroot -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/opt/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/bin/armv8l-linux-gnueabihf- -sysroot /mnt/bbb-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -no-openssl -opengl es2 -eglfs -v

Error:

ERROR: Feature 'opengles2' was enabled, but the pre-condition 'config.win32 || (!config.watchos && !features.opengl-desktop && libs.opengl_es2)' failed.

ERROR: Feature 'eglfs' was enabled, but the pre-condition '!config.android && !config.darwin && !config.win32 && features.egl' failed.

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

Config.log snippet:

Trying source 1 (type makeSpec) of library opengl_es2 ...
None of [libGLESv2.so libGLESv2.a] found in [] and global paths.
None of [libEGL.so libEGL.a] found in [] and global paths.
None of [libIMGegl.so libIMGegl.a] found in [] and global paths.
None of [libsrv_um.so libsrv_um.a] found in [] and global paths.
=> source produced no result.

I'm really trying to fix it by myself, but i can't, i don't want to give up with this...

Thanks in advice for any reply.

jonnymo

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Oct 21, 2020, 11:18:40 AM10/21/20

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For EGLS on the Beaglebone, I found this site to be useful:

https://elinux.org/BeagleBoneBlack/SGX_%2B_Qt_EGLFS_%2B_Weston#QtQuick_.2B_EGLFS

These previous posts might be helpful to you as well:

https://mail.google.com/mail/u/0/?tab=rm&ogbl#search/eglfs/FMfcgxwHNDCsxVdDfLbmTGZpHNmfxJPC

https://mail.google.com/mail/u/0/?tab=rm&ogbl#search/eglfs/FMfcgxwDqTfbHNjgxpDXtlXccKJmMgCS

For the error you are seeing, do you have the QMAKE environment variables set as the error suggests? The should point to your sysroot location:

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

Cheers,

Jon

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Jeremias Ramirez

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Oct 21, 2020, 12:23:59 PM10/21/20

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Hi Jon, thank you for the reply.

Thanks for the link, the first may be useful later, when this works.

The mailing links, are unavailale for me.

About the QMAKE variables, I try to change the paths on qmake.conf within the beagleboard device folder, but i dont know if I'm doing it wrong or something else because the error doesn't seem to change.

At least my configurations doesn't aply to those empty [].

None of [libGLESv2.so libGLESv2.a] found in [] and global paths.

Do you know how to edit those paths inside the ./configure command line to be sure be applied?

Thanks for the link, the first may be useful later, when this works.

The mailing links, are unavailale for me.

Thank you very much for your time.

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jonnymo

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Oct 21, 2020, 12:45:00 PM10/21/20

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These should be set in the qmake.conf:

Ref:

https://wlhe.github.io/2018/01/Build-Qt5.10-for-Raspberry-PI3

https://doc.qt.io/qt-5/qmake-variable-reference.html

More References:

https://forum.qt.io/topic/71850/opengl-es2-cross-compile-for-beaglebone-black-using-os-debian-when-built-qt5-7-0/15

https://groups.google.com/g/beagleboard/c/Xx6NxdUkqAw/m/fNCXyFJXBwAJ

See Robert's note about installing QT:

https://groups.google.com/forum/embed/?place=forum/beagleboard&showsearch=true&showpopout=true&showtabs=false&hideforumtitle=true&parenturl=https%3A%2F%2Fbeagleboard.org%2Fdiscuss#!searchin/beagleboard/qt$20egl|sort:date/beagleboard/hpgDq4pj0YQ/9NN-OIRUAQAJ

Cheers,

Jon

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Dennis Lee Bieber

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Oct 21, 2020, 1:15:09 PM10/21/20

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On Wed, 21 Oct 2020 07:11:31 -0700 (PDT), in
gmane.comp.hardware.beagleboard.user "'Jeremias Ramirez' via BeagleBoard"

<beagleboard-/JYPxA39Uh5...@public.gmane.org> wrote:

>
>Trying source 1 (type makeSpec) of library opengl_es2 ...
>None of [libGLESv2.so libGLESv2.a] found in [] and global paths.
>None of [libEGL.so libEGL.a] found in [] and global paths.
>None of [libIMGegl.so libIMGegl.a] found in [] and global paths.
>None of [libsrv_um.so libsrv_um.a] found in [] and global paths.

Have any of those been installed?

debian@beaglebone:~$ apt search libgles
Sorting... Done
Full Text Search... Done
<SNIP>
libgles2/stable 1.1.0-1 armhf
Vendor neutral GL dispatch library -- GLESv2 support

libgles2-mesa/unknown 19.1.6-1rcnee2~buster+20200513 armhf
transitional dummy package

<SNIP>

debian@beaglebone:~$ apt search libegl
Sorting... Done
Full Text Search... Done
<SNIP>
libegl1/stable 1.1.0-1 armhf
Vendor neutral GL dispatch library -- EGL support

<SNIP>

--
Dennis L Bieber

jonnymo

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Oct 21, 2020, 1:50:49 PM10/21/20

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If they are doing cross compiling from a remote host, then should they not be using the BB specific libs under sysroot and not the host OpenGL libs?

Jon

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Jeremias Ramirez

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Oct 21, 2020, 3:51:23 PM10/21/20

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Hi Dennis, thanks for the reply.

This is the output of the apt search commands:

ubuntu@beaglebone:~$ apt search libgles

Sorting... Done
Full Text Search... Done

libgles1/bionic-updates,now 1.0.0-2ubuntu2.3 armhf [installed,automatic]
Vendor neutral GL dispatch library -- GLESv1 support

libgles2/bionic-updates,now 1.0.0-2ubuntu2.3 armhf [installed,automatic]

Vendor neutral GL dispatch library -- GLESv2 support

libgles2-mesa/bionic-updates 20.0.8-0ubuntu1~18.04.1 armhf
transitional dummy package

libgles2-mesa-dev/bionic-updates,now 20.0.8-0ubuntu1~18.04.1 armhf [installed]
free implementation of the OpenGL|ES 2.x API -- development files

ubuntu@beaglebone:~$ apt search libegl

Sorting... Done
Full Text Search... Done

libegl-mesa0/bionic-updates,now 20.0.8-0ubuntu1~18.04.1 armhf [installed,automatic]
free implementation of the EGL API -- Mesa vendor library

libegl1/bionic-updates,now 1.0.0-2ubuntu2.3 armhf [installed,automatic]

Vendor neutral GL dispatch library -- EGL support

libegl1-mesa/bionic-updates 20.0.8-0ubuntu1~18.04.1 armhf
transitional dummy package

libegl1-mesa-dev/bionic-updates,now 20.0.8-0ubuntu1~18.04.1 armhf [installed]
free implementation of the EGL API -- development files

Jon, i've looking the links you provided, in fact, i need how to make a configuration like this:

VC_LIBRARY_PATH         = $$[QT_SYSROOT]/opt/vc/lib
VC_INCLUDE_PATH         = $$[QT_SYSROOT]/opt/vc/include

QMAKE_LIBDIR_OPENGL_ES2 = $${VC_LIBRARY_PATH}
QMAKE_LIBDIR_EGL        = $$QMAKE_LIBDIR_OPENGL_ES2
QMAKE_LIBDIR_OPENVG     = $$QMAKE_LIBDIR_OPENGL_ES2

QMAKE_INCDIR_EGL        = \
                        $${VC_INCLUDE_PATH} \
                        $${VC_INCLUDE_PATH}/interface/vcos/pthreads \
                        $${VC_INCLUDE_PATH}/interface/vmcs_host/linux
QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}
QMAKE_INCDIR_OPENVG     = $${QMAKE_INCDIR_EGL}

QMAKE_LIBS_OPENGL_ES2   = -lGLESv2
QMAKE_LIBS_EGL          = -lEGL -lGLESv2
QMAKE_LIBS_OPENVG       = -lEGL -lOpenVG -lGLESv2

I think, please correct me if i'm wrong, i need to change the in this folder:

sitara@workstation:/opt/qt5bbb/qt5/qtbase/mkspecs/devices/linux-beagleboard-g++$ ls
qmake.conf qmake.conf.bkup qmake.conf.edited qmake.conf.save qplatformdefs.h
(Some of those files are backup while i'm testing)

So, right now, my qmake.conf file is:

# Extra stuff (OpenGL, DirectFB, ...)
QMAKE_INCDIR_EGL        =
QMAKE_LIBDIR_EGL        =
QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}
QMAKE_LIBDIR_OPENGL_ES2 = $${QMAKE_LIBDIR_EGL}
QMAKE_INCDIR_OPENVG     = $${QMAKE_INCDIR_EGL}
QMAKE_LIBDIR_OPENVG     = $${QMAKE_LIBDIR_EGL}

QMAKE_LIBS_EGL          = -lEGL -lIMGegl -lsrv_um
QMAKE_LIBS_OPENGL_ES2   = -lGLESv2 $${QMAKE_LIBS_EGL}
QMAKE_LIBS_OPENVG       = -lOpenVG $${QMAKE_LIBS_EGL}

I try to fill those blanks with my paths, but no one works.

I think, i'm working with the wrong file, or using wrong paths.

Do i see changes in the config.log with differents paths?

I search inside the log and when it shows the EGL error, only notice me that cant found the libraries on [ ] ,, and thats all, a pair of empty square brackets.

Again, thanks for the replies, i'm very glad to have someone to ask and talk, every site or forum with this troubles has at least a few years of inactivity.

Jeremias.

jonnymo

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Oct 22, 2020, 2:54:06 AM10/22/20

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I've tried to set this up and I am seeing a similar issue. I piped the output to tee and a log file and found it is not able to locate a lib which from what I can tell is there.

This is the configure statement I used:

./configure -no-gcc-sysroot -device linux-beagleboard-g++ -device-option CROSS_COMPILE=~/development/beaglbone/bbbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- -sysroot ~/development/beaglbone/bbbuild/sysroot -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5bbb -extprefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -no-openssl -opengl es2 -eglfs -v |& tee ~/development/beaglbone/bbbuild/config-bbgr.log

This is what I see in the log file:

/home/jomodev/development/beaglbone/bbbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++ -mfloat-abi=hard --sysroot=/home/jomodev/development/beaglbone/bbbuild/sysroot -Wl,-O1 -o dbus main.o -L/home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf -ldbus-1 -lrt -lpthread -ldl
> /home/jomodev/development/beaglbone/bbbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/7.5.0/../../../../arm-linux-gnueabihf/bin/ld: warning: libsystemd.so.0, needed by /home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf/libdbus-1.so, not found (try using -rpath or -rpath-link)
> /home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf/libdbus-1.so: undefined reference to `sd_listen_fds@LIBSYSTEMD_209'
> /home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf/libdbus-1.so: undefined reference to `sd_is_socket@LIBSYSTEMD_209'
> collect2: error: ld returned 1 exit status
> Makefile:69: recipe for target 'dbus' failed
> make: *** [dbus] Error 1
=> source failed verification.
Trying source 1 (type inline) of library dbus ...
=> source failed condition 'config.win32'.
Trying source 2 (type inline) of library dbus ...
dbus/dbus.h not found in [] and global paths.

=> source produced no result.

This seems to be what is causing the ending error for the ELS libs.

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

ERROR: Feature 'opengles2' was enabled, but the pre-condition '(config.win32 && !features.opengl-dynamic) || (!config.watchos && !features.opengl-desktop && libs.opengl_es2)' failed.

ERROR: Feature 'eglfs' was enabled, but the pre-condition '!config.android && !config.darwin && !config.win32 && !config.wasm && features.egl' failed.

ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

From what I can tell, the library is located in my sysroot:

$ ls -lt sysroot/lib/arm-linux-gnueabihf/libsystemd.so.0
lrwxrwxrwx 1 jomodev jomodev 20 May 9 10:08 sysroot/lib/arm-linux-gnueabihf/libsystemd.so.0 -> libsystemd.so.0.25.0

Perhaps it is not looking under the sysroot/lib folder but I am not sure.

I did ensure the Opengl ES libs are installed on the Beaglebone and ran rsync to bring in the changes to sysroot and the add the lib and include ref in the qmake.conf file:

~/opt/qt5bb/qt-everywhere-src-5.15.1/qtbase/mkspecs/devices/linux-beagleboard-g++/qmake.conf

# Extra stuff (OpenGL, DirectFB, ...)

QMAKE_INCDIR_EGL = '/home/jomodev/development/beaglbone/bbbuild/sysroot/usr/include'
QMAKE_LIBDIR_EGL = '/home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf/libGLESv2.so.2.1.0'

I'm not sure why it is failing for the libsystemd.so.0 but will continue to look.

Cheers,

Jon

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Jeremias Ramirez

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Oct 22, 2020, 6:51:35 AM10/22/20

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I will try to reproduce your way to log the error, maybe can throw some light on this.

Thanks for your time. I really appreciate it.

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Dennis Lee Bieber

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Oct 22, 2020, 11:04:40 AM10/22/20

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On Wed, 21 Oct 2020 12:51:23 -0700 (PDT), in

gmane.comp.hardware.beagleboard.user "'Jeremias Ramirez' via BeagleBoard"
<beagleboard-/JYPxA39Uh5...@public.gmane.org> wrote:

>Hi Dennis, thanks for the reply.
>This is the output of the apt search commands:

Okay, I'm out of ideas -- other than maybe burn a Debian image and try
the same builds from it...

>
>ubuntu@beaglebone:~$ apt search libgles
>Sorting... Done
>Full Text Search... Done
>libgles1/bionic-updates,now 1.0.0-2ubuntu2.3 armhf [installed,automatic]
> Vendor neutral GL dispatch library -- GLESv1 support
>

--
Dennis L Bieber

Dennis Lee Bieber

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Oct 22, 2020, 11:07:14 AM10/22/20

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On Wed, 21 Oct 2020 10:50:12 -0700, in gmane.comp.hardware.beagleboard.user
jonnymo <jonnymovo-Re5JQE...@public.gmane.org> wrote:

>If they are doing cross compiling from a remote host, then should they not
>be using the BB specific libs under sysroot and not the host OpenGL libs?
>

Based upon the OP's response, they are building on a Beagle -- but that
Beagle is running a Ubuntu image (or have some other ARM-based build
environment).

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Dennis L Bieber

Jeremias Ramirez

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Oct 22, 2020, 11:12:21 AM10/22/20

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Hi again.

Yes, the BBB is running Ubuntu 18.04 for Arm.

The workstation is running Ubuntu 18.04 too.

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Jeremias Ramirez

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Oct 22, 2020, 11:58:29 AM10/22/20

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I think I can run the Debian image from the board memory, I have the SD with the Ubuntu distro and I don't have other SD available rigth now.

I will try with that sysroot in a couple hours.

Thanks.

jonnymo

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Oct 22, 2020, 12:33:11 PM10/22/20

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I have a Debian 9.13 Docker instance on Ubuntu 20.04 that I have been building so that might be an option. I could try a 64-bit Debian VirtualBox image but only have a 32-bit in place now. However, I am not seeing anything that would indicate it is an Ubuntu vs Debian thing but it is possible and the libsystemd.so.0 might be an indicator. I too have been using Ubuntu 18.04 for this exercise.

Cheers,

Jon

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Jeremias Ramirez

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Oct 22, 2020, 12:58:31 PM10/22/20

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Jon, which version of Qt are you trying to build?

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jonnymo

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Oct 22, 2020, 1:21:02 PM10/22/20

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Qt 5.15.1 from source.

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Jeremias Ramirez

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Oct 22, 2020, 2:04:27 PM10/22/20

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I'm working with 5.12.9, so I think isn't a version issue either.

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jonnymo

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Oct 22, 2020, 4:09:36 PM10/22/20

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Yeah, I just downloaded 5.12.9 and tied that but got the same end result but more info in the log.

Also, I am following these two links and ensured both my Host and BB have the proper libs installed and such.

https://mechatronicsblog.com/cross-compile-and-deploy-qt-5-12-for-raspberry-pi/#comment-1706

https://wiki.qt.io/BeagleBone_Black_Beginners_Guide

Also, I have edits the qmake.conf and added the following but still no go:

QMAKE_LFLAGS += -Wl,-rpath-link,$$[QT_SYSROOT]/lib

# Extra stuff (OpenGL, DirectFB, ...)

QMAKE_INCDIR_EGL = $$[QT_SYSROOT]/usr/include \
$$[QT_SYSROOT]/usr/include/GLES2 \
$$[QT_SYSROOT]/usr/include/arm-linux-gnueabihf \
$$[QT_SYSROOT]/usr/include/arm-linux-gnueabihf/bits

QMAKE_LIBDIR_EGL = $$[QT_SYSROOT]/lib \
$$[QT_SYSROOT]/usr/lib \
$$[QT_SYSROOT]/usr/lib/arm-linux-gnueabihf

QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}
QMAKE_LIBDIR_OPENGL_ES2 = $${QMAKE_LIBDIR_EGL}
QMAKE_INCDIR_OPENVG = $${QMAKE_INCDIR_EGL}
QMAKE_LIBDIR_OPENVG = $${QMAKE_LIBDIR_EGL}

QMAKE_LIBS_EGL = -lEGL -lIMGegl -lsrv_um
QMAKE_LIBS_OPENGL_ES2 = -lGLESv2 $${QMAKE_LIBS_EGL}
QMAKE_LIBS_OPENVG = -lOpenVG $${QMAKE_LIBS_EGL}

DISTRO_OPTS += hard-float

# No need for any special EGL device integration.
# Prioritize the default, compiled-in integration over any plugins.

With 5.12.9 and all the libs and stuff in place, I now see this in the log file.

+ PKG_CONFIG_SYSROOT_DIR=/home/jomodev/development/beaglbone/bbbuild/sysroot PKG_CONFIG_LIBDIR=/home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/pkgconfig:/home/jomodev/development/beaglbone/bbbuild/sysroot/usr/share/pkgconfig:/home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf/pkgconfig /usr/bin/pkg-config --cflags glesv2
header entry 'config.qtbase_gui.libraries.opengl_es2.headers.0' passed condition.
GLES2/gl2.h not found in [] and global paths.

=> source produced no result.

Trying source 1 (type makeSpec) of library opengl_es2 ...

None of [libIMGegl.so libIMGegl.a] found in [/home/jomodev/development/beaglbone/bbbuild/sysroot/lib /home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib /home/jomodev/development/beaglbone/bbbuild/sysroot/usr/lib/arm-linux-gnueabihf] and global paths.

I know gl2.h is in sysroot so perhaps there is a Path not set properly.

$ find sysroot/ -name "gl2.h"
sysroot/usr/include/GLES2/gl2.h

The adventure continues.

Cheers,

Jon

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Jeremias Ramirez

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Oct 22, 2020, 5:03:23 PM10/22/20

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I don't know how path vars work in this kind of files, but, if you see that file, at the start includes an linux.conf file, that file also make reference to the $varPaths whom we are trying to especify.

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jonnymo

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Oct 22, 2020, 9:39:35 PM10/22/20

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Yeah, I tried with Debian 9.13 64-bit and it still shows the same error for the OpenGL ES libs.

Must be missing something.

Jon

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Jeremias Ramirez

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Oct 23, 2020, 8:44:42 AM10/23/20

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Well, i'm not sure if this is something useful, but, I try to use an older version of the Linaro compiler.

I was using 7.5 and i try 6.5

I think there's something weird updating links, because i change the ./configure, and the script still trying to use the 7.5v, look:

+ cd qtbase
+ /opt/qt5bbb/qt5/qtbase/configure -top-level -no-gcc-sysroot -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/opt/gcc-linaro-6.5.0-2018.12-x86_64_armv8l-linux-gnueabihf/bin/armv8l-linux-gnueabihf- -sysroot /mnt/bbb-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -no-openssl -opengl es2 -eglfs -v
<srcbase> = /opt/qt5bbb/qt5/qtbase
<bldbase> = /opt/qt5bbb/qt5/qtbase
<outbase> = /opt/qt5bbb/qt5/qtbase
Creating qmake...
make: Nothing to be done for 'first'.
Command line: -no-gcc-sysroot -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/opt/gcc-linaro-6.5.0-2018.12-x86_64_armv8l-linux-gnueabihf/bin/armv8l-linux-gnueabihf- -sysroot /mnt/bbb-rootfs -opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -prefix /usr/local/qt5bbb -hostprefix /usr/local/qt5bbb -qt-zlib -qt-libpng -no-openssl -opengl es2 -eglfs -v

This is the Qt Open Source Edition.

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

Running configuration tests...

+ cd /opt/qt5bbb/qt5/config.tests && /opt/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/bin/armv8l-linux-gnueabihf-g++ -pipe -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -mfloat-abi=hard -fuse-ld=gold -o conftest-out conftest.cpp

+ /opt/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/bin/armv8l-linux-gnueabihf-g++ -dumpmachine
> armv8l-linux-gnueabihf

I rename the 7.5v folder and still giving me the same paths here.

Best regards.

jonnymo

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Oct 23, 2020, 4:01:15 PM10/23/20

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Okay, a bit of success.

With it picking up the older toolchain, look in the folders you are using for any '.qt*. files. There are files that get created as '.' when running the configure script.

For me,

I downloaded Qt 5.12.5 and unpacked it in a folder.

Then I created 3 folders for the prefix, extprefix and hostprefix:

prefix ~/opt/qt512bb/install
extprefix ~/opt/qt512bb/binaries
hostprefix ~/opt/qt512bb/tool

Then I created a build folder to build qt in and moved to that folder to build

mkdir -p ~/opt/qt512bb/build
cd ~/opt/qt512bb/build

Then I ran the configure script from the build folder as such.

../qt-everywhere-src-5.12.5/configure -platform linux-g++-64 -release -opengl es2 -device linux-beagleboard-g++ -device-option CROSS_COMPILE=~/develop/bbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- -sysroot ~/develop/bbuild/sysroot -opensource -confirm-license -make libs -prefix ~/opt/qt512bb/install -extprefix ~/opt/qt512bb/binaries -hostprefix ~/opt/qt512bb/tool -nomake tests -v -libdir ~/develop/bbuild/sysroot/lib/arm-linux-gnueabihf

This was just to verify the config and make sure it passes the configure stage. Currently running make and will see if it compiles then will add the other items in the config.

Also, I am using the default qmake.conf file.

Helpful links:

https://stackoverflow.com/questions/45983717/qt-sysroot-prefix-extprefix-and-hostprefix-options

https://stackoverflow.com/questions/49139731/error-while-creating-qmake-for-a-qt-static-build

Jon

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Jeremias Ramirez

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Oct 23, 2020, 6:17:25 PM10/23/20

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That looks good.

In the meantime I try to fully understand what are you doing and how to replicate it, you say you will add the other items in the config later. How do you will do that? I have an VirtualBox snapshot on my laptop (another Qt installation) just after the -make step, so, to try re-run the ./configure plus -make combo when we can include OpenGL I just ran -make clean, but this don't solve that re-run ./configure doesn't seem to take all the new paths.

In the past, I opt to reinstall Ubuntu just for make sure the new installation will be clean, but i hate do that, i think that in certain moment i will not be able to do that anymore without expend another week configuring the IDE.

Thank you very much for your help.

Jeremias.

jonnymo

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Oct 26, 2020, 12:35:42 AM10/26/20

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Okay, I think I have something that works. This completes the configure step, completes make, and make install.

As far as the issue where it is still picking up the previous toolchain in your config, each time after I compile or run into an issue, I remove the build, the qt source, the toolchain folders and anything else that indicates it was touched during the build of qt. I had to remove the sysroot folder and resync the files from the Beaglebone at least once.

With my config, I found I was missing a couple of folders from the BB where there were files linked to other locations. This is what I have for creating the sysroot for the BB.

mkdir -p sysroot/{lib,sbin,usr/{include,lib,bin},etc/alternatives}
rsync -avz deb...@192.168.7.2:/lib sysroot/
rsync -avz deb...@192.168.7.2:/sbin sysroot/
rsync -avz deb...@192.168.7.2:/usr/include sysroot/usr
rsync -avz deb...@192.168.7.2:/usr/lib sysroot/usr
rsync -avz deb...@192.168.7.2:/usr/bin sysroot/usr
rsync -avz deb...@192.168.7.2:/etc/alternatives sysroot/etc

Get this tool to fix relative links:

wget https://raw.githubusercontent.com/riscv/riscv-poky/master/scripts/sysroot-relativelinks.py
chmod +x sysroot-relativelinks.py
./sysroot-relativelinks.py sysroot

This is the qmake.conf that I am using

#
# qmake configuration for the BeagleBoard and BeagleBoard xM boards
# http://beagleboard.org/

MAKEFILE_GENERATOR = UNIX
CONFIG += incremental
QMAKE_INCREMENTAL_STYLE = sublib

#include(../../common/linux.conf)
#include(../../common/gcc-base-unix.conf)
#include(../../common/g++-unix.conf)

include(../common/linux_device_pre.conf)

load(device_config)

QT_QPA_DEFAULT_PLATFORM = eglfs

# modifications to g++.conf
QMAKE_CC = $${CROSS_COMPILE}gcc
QMAKE_CXX = $${CROSS_COMPILE}g++
QMAKE_LINK = $${QMAKE_CXX}
QMAKE_LINK_SHLIB = $${QMAKE_CXX}

# modifications to linux.conf
QMAKE_AR = $${CROSS_COMPILE}ar cqs
QMAKE_OBJCOPY = $${CROSS_COMPILE}objcopy
QMAKE_NM = $${CROSS_COMPILE}nm -P
QMAKE_STRIP = $${CROSS_COMPILE}strip

COMPILER_FLAGS = -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb

#modifications to gcc-base.conf
QMAKE_CFLAGS += $${COMPILER_FLAGS}
QMAKE_CXXFLAGS += $${COMPILER_FLAGS}
QMAKE_CXXFLAGS_RELEASE += -O3

INCLUDEPATH += /home/bbbuild/develop/bbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/include/c++/7.5.0

QMAKE_LIBS += -lrt -lpthread -ldl

# Extra stuff (OpenGL, DirectFB, ...)

QMAKE_INCDIR_EGL = /home/bbbuild/develop/bbuild/sysroot/usr/include
QMAKE_LIBDIR_EGL = /home/bbbuild/develop/bbuild/sysroot/usr/lib/arm-linux-gnueabihf

QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}
QMAKE_LIBDIR_OPENGL_ES2 = $${QMAKE_LIBDIR_EGL}
QMAKE_INCDIR_OPENVG = $${QMAKE_INCDIR_EGL}
QMAKE_LIBDIR_OPENVG = $${QMAKE_LIBDIR_EGL}

#QMAKE_LIBS_EGL = -lEGL -lIMGegl -lsrv_um
QMAKE_LIBS_EGL = -lEGL

QMAKE_LIBS_OPENGL_ES2 = -lGLESv2 $${QMAKE_LIBS_EGL}
QMAKE_LIBS_OPENVG = -lOpenVG $${QMAKE_LIBS_EGL}

DISTRO_OPTS += hard-float

# No need for any special EGL device integration.
# Prioritize the default, compiled-in integration over any plugins.

EGLFS_DEVICE_INTEGRATION = none

include(../common/linux_arm_device_post.conf)

load(qt_config)

Note, I had to add an INCLUDEPATH entry to point to the includes in the toolchain since qmake was not finding it.

Then I ran configure from the build folder as such:

../qt-everywhere-src-5.12.5/configure -platform linux-g++-64 -prefix /home/bbbuild/opt/qt512bb/qt512 -extprefix /home/bbbuild/opt/qt512bb/binaries -hostprefix /home/bbbuild/opt/qt512bb/tool -release -opengl es2 -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/home/bbbuild/develop/bbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- -no-sql-db2 -no-sql-ibase -no-sql-mysql -no-sql-oci -no-sql-odbc -no-sql-psql -no-sql-sqlite -no-sql-sqlite2 -no-sql-tds -sysroot /home/bbbuild/develop/bbuild/sysroot -opensource -confirm-license -skip qtwayland -skip qtlocation -skip qtscript -make libs -nomake examples -nomake tests -v -no-gbm

Then run make && make install

This is part of the config.status output from the build folder

EGL .................................... yes
OpenVG ................................. no
OpenGL:
Desktop OpenGL ....................... no
OpenGL ES 2.0 ........................ yes
OpenGL ES 3.0 ........................ yes
OpenGL ES 3.1 ........................ yes
OpenGL ES 3.2 ........................ yes
Vulkan ................................. yes
Session Management ..................... yes
Features used by QPA backends:
evdev .................................. yes
libinput ............................... yes
INTEGRITY HID .......................... no
mtdev .................................. yes
tslib .................................. yes
xkbcommon .............................. yes
X11 specific:
XLib ................................. yes
XCB Xlib ............................. yes
EGL on X11 ........................... yes
QPA backends:
DirectFB ............................... no
EGLFS .................................. yes
EGLFS details:
EGLFS OpenWFD ........................ no
EGLFS i.Mx6 .......................... no
EGLFS i.Mx6 Wayland .................. no
EGLFS RCAR ........................... no
EGLFS EGLDevice ...................... yes
EGLFS GBM ............................ no
EGLFS VSP2 ........................... no
EGLFS Mali ........................... no
EGLFS Raspberry Pi ................... no
EGLFS X11 ............................ yes
LinuxFB ................................ yes
VNC .................................... yes
Mir client ............................. no

This is what is in the binaries folder from the extprefix option

~/opt/qt512bb$ ls -lt binaries/
total 52
drwxr-xr-x 2 bbbuild bbbuild 12288 Oct 25 19:00 translations
drwxr-xr-x 23 bbbuild bbbuild 4096 Oct 25 19:00 qml
drwxr-xr-x 80 bbbuild bbbuild 4096 Oct 25 19:00 include
drwxr-xr-x 4 bbbuild bbbuild 20480 Oct 25 19:00 lib
drwxr-xr-x 2 bbbuild bbbuild 4096 Oct 25 19:00 bin
drwxr-xr-x 25 bbbuild bbbuild 4096 Oct 25 18:59 plugins
drwxr-xr-x 3 bbbuild bbbuild 4096 Oct 25 18:58 doc

I hope this helps.

Cheers,

Jon

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Jeremias Ramirez

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Oct 26, 2020, 8:30:46 AM10/26/20

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You cannot imagine how I feel when see this on my terminal:

EGL .................................... yes
OpenVG ................................. no
OpenGL:
    Desktop OpenGL ....................... no
    OpenGL ES 2.0 ........................ yes
    OpenGL ES 3.0 ........................ yes
    OpenGL ES 3.1 ........................ yes
    OpenGL ES 3.2 ........................ yes
Vulkan ................................. yes
Session Management ..................... yes
Features used by QPA backends:
evdev .................................. yes

libinput ............................... no
INTEGRITY HID .......................... no
mtdev .................................. no
tslib .................................. no

xkbcommon .............................. yes
X11 specific:
    XLib ................................. yes
    XCB Xlib ............................. yes
    EGL on X11 ........................... yes
QPA backends:
DirectFB ............................... no
EGLFS .................................. yes
EGLFS details:
    EGLFS OpenWFD ........................ no
    EGLFS i.Mx6 .......................... no
    EGLFS i.Mx6 Wayland .................. no
    EGLFS RCAR ........................... no

EGLFS EGLDevice ...................... no

    EGLFS GBM ............................ no
    EGLFS VSP2 ........................... no
    EGLFS Mali ........................... no
    EGLFS Raspberry Pi ................... no
    EGLFS X11 ............................ yes

We are almost 95% done.

Thank you very much.

That not only helps, that works.

I'm starting -make that, i will write here again when it's done.

Thank you again.

Regards, Jeremias.

Jeremias Ramirez

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Oct 26, 2020, 12:35:55 PM10/26/20

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Well, I can't compile it. 😶

I got those errors after a while:

In file included from /opt/qt5129bbb/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/armv8l-linux-gnueabihf/include/c++/7.5.0/bits/stl_algo.h:59:0,
from /opt/qt5129bbb/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/armv8l-linux-gnueabihf/include/c++/7.5.0/algorithm:62,
from ../../include/QtCore/../../../../qt5/qtbase/src/corelib/global/qglobal.h:142,
from ../../include/QtCore/qglobal.h:1,
from ../../include/QtGui/../../../../qt5/qtbase/src/gui/kernel/qtguiglobal.h:43,
from ../../include/QtGui/qtguiglobal.h:1,
from /opt/qt5129bbb/qt5/qtbase/src/gui/kernel/qt_gui_pch.h:50:
/opt/qt5129bbb/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/armv8l-linux-gnueabihf/include/c++/7.5.0/cstdlib:75:15: fatal error: stdlib.h: No such file or directory
#include_next <stdlib.h>
^~~~~~~~~~
compilation terminated.
Makefile:1926: recipe for target '.pch/Qt5Gui.gch/c++' failed
make[3]: *** [.pch/Qt5Gui.gch/c++] Error 1
make[3]: Leaving directory '/opt/qt5129bbb/build/qtbase/src/gui'
Makefile:555: recipe for target 'sub-gui-make_first' failed
make[2]: *** [sub-gui-make_first] Error 2
make[2]: Leaving directory '/opt/qt5129bbb/build/qtbase/src'
Makefile:50: recipe for target 'sub-src-make_first' failed
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory '/opt/qt5129bbb/build/qtbase'
Makefile:82: recipe for target 'module-qtbase-make_first' failed
make: *** [module-qtbase-make_first] Error 2

I'm trying to figure out what's wrong with the library.

PS: I tried removing the line you add to the conf file, just in case.

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jonnymo

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Oct 26, 2020, 12:41:27 PM10/26/20

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I had that issue but it seemed to be resolved by adding the following line in the qmake.conf file:

INCLUDEPATH += /home/bbbuild/develop/bbuild/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/include/c++/7.5.0

Ensure you adjust the path, and other paths, to match your configuration. This is fully qualified based on where the toolchain is installed on my system.

Cheers,

Jon

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Jeremias Ramirez

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Oct 26, 2020, 12:45:09 PM10/26/20

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Ok! Checking the paths again...

The only difference I see against your setup is that I'm using the Arm8 version of the toolchain.

Regards, Jeremias.

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Jeremias Ramirez

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Oct 26, 2020, 12:54:18 PM10/26/20

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Okay, i owe you another coffee.

I corrected the paths, but forgot just the arm8.

Was: /opt/qt5129bbb/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/arm-linux-gnueabihf/include/c++/7.5.0

Must be: /opt/qt5129bbb/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/armv8l-linux-gnueabihf/include/c++/7.5.0

Trying, again.

Dennis Lee Bieber

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Oct 26, 2020, 1:06:00 PM10/26/20

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On Mon, 26 Oct 2020 13:35:09 -0300, in gmane.comp.hardware.beagleboard.user

"'Jeremias Ramirez' via BeagleBoard"
<beagleboard-/JYPxA39Uh5...@public.gmane.org> wrote:

>/opt/qt5129bbb/gcc-linaro-7.5.0-2019.12-x86_64_armv8l-linux-gnueabihf/armv8l-linux-gnueabihf/include/c++/7.5.0/cstdlib:75:15:
>fatal error: stdlib.h: No such file or directory
> #include_next <stdlib.h>
> ^~~~~~~~~~
>compilation terminated.

Per https://gcc.gnu.org/onlinedocs/cpp/Wrapper-Headers.html
"include_next" says to: find the next file in the search path with this
name. That seems to indicate that the include file search path needs to be
correctly ordered -- the implication is that there is a modified stdlib.h
in the source being built, and it then wants to include the normal system
stdlib.h for completeness.

{Is it really necessary to include 8+ levels of quoting that have nothing
relevant to the current incident?}

--
Dennis L Bieber

jonnymo

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Oct 26, 2020, 1:16:10 PM10/26/20

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Dennis,

Yeah, that is the intent of INCLUDEPATH since the location of the includes in the toolchain are in a different location than where Qt is looking. I did see a post where it was suggested to remove the Default path but there were other comments in the same post where it did not work. What I posted seems to work; at least in my config.

I don't understand this comment:

"

{Is it really necessary to include 8+ levels of quoting that have nothing
relevant to the current incident?}"

Jon

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Jeremias Ramirez

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Oct 26, 2020, 1:25:37 PM10/26/20

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Dennis, to be honest, the quotes I see are only three little dots at the end of the mail that I simply ignore. I don't know where are you reading this, but I didn't realize that quotes may be annoying.

My apologies.

Now running make again. Let's see what happens next.

Thanks again for the support.

Regards, Jeremias.

jonnymo

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Oct 26, 2020, 1:43:05 PM10/26/20

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Jeremias,

Which Beagleboard are you compiling for?

My Beaglebone Black reports as an ARMv7 and not an ARMv8 so are you sure that is the correct toolchain for a BB Black.

debian@beaglebone:~$ cat /proc/cpuinfo | grep -i arm
model name : ARMv7 Processor rev 2 (v7l)

Jon

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Jeremias Ramirez

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Oct 26, 2020, 1:57:14 PM10/26/20

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I just checked that and you are right, my board is a BeaglBone Black with ARM v7.

I mixed the term cortex-8 with the Arm version.

So, I don't know why, but I've been working with this well.

I will correct it as soon as possible.

Thanks.

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Dennis Lee Bieber

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Oct 26, 2020, 3:50:16 PM10/26/20

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On Mon, 26 Oct 2020 14:24:54 -0300, in gmane.comp.hardware.beagleboard.user

"'Jeremias Ramirez' via BeagleBoard"
<beagleboard-/JYPxA39Uh5...@public.gmane.org> wrote:

>Dennis, to be honest, the quotes I see are only three little dots at the
>end of the mail that I simply ignore. I don't know where are you reading
>this, but I didn't realize that quotes may be annoying.
>My apologies.
>

I read via the gmane NNTP server. According to my newsreader, the post
I'd responded to, and trimmed, had 1520 LINES of text in it.

I suspect whatever client you are using is simply masking quoted
material by not displaying it, but it is none-the-less being included in
replies.

And... I wasn't really targetting you with the complaint. It's a
general gripe I find in forums that didn't grow up with Usenet etiquette
(or "pay per minute" connections).

https://www.ietf.org/rfc/rfc1855.txt
Section 2.1.1 for individual email (ie: one-to-one messages)
"""
- Be brief without being overly terse. When replying to a message,
include enough original material to be understood but no more. It
is extremely bad form to simply reply to a message by including
all the previous message: edit out all the irrelevant material.
"""
Section 3.1.1 for lists and Usenet (one-to-many messages)
"""
- If you are sending a reply to a message or a posting be sure you
summarize the original at the top of the message, or include just
enough text of the original to give a context. This will make
sure readers understand when they start to read your response.
Since NetNews, especially, is proliferated by distributing the
postings from one host to another, it is possible to see a
response to a message before seeing the original. Giving context
helps everyone. But do not include the entire original!
"""

Unfortunately... Then came Microsoft Outlook -- which sought to produce
a business ethic in which quoted material is the equivalent of a photocopy
attached to a snail-mail letter as a courtesy for the recipient (who should
already be familiar with the content, the copy just saves them looking up
archived mails for any details they forgot), and the entire reply is
provided "above" the copy.

--
Dennis L Bieber

jonnymo

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Oct 26, 2020, 4:21:46 PM10/26/20

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I believe if you respond directly from the Google Groups Beagleboard Forum it will automatically add the previous conversation content. If you extend the '...' then you will see what is being added. I just respond directly in GMail and avoid the quotes unless I find them necessary.

Jeremias,

If you want to take the discussion offline I am cool with that.

Jon

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Jeremias Ramirez

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Oct 27, 2020, 9:16:41 PM10/27/20

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Hi again, sorry for the delay.

Well, i finally can build Qt with OpenGL. :D

A few hours later, the -make process finishes, I ran make install and all was perfect.

After that, I upload to the BBB the /sysroot folder.

I try to build an example and it fails.

I configure QtCreator with the Qmake from /build/qtbase/bin/qmake.

I got a lot of errors about paths. I'm not able to try to fix them by now.

Warning: libpng16.so.16, needed by /opt/qt5129bbb/build/qtbase/lib/libQt5Gui.so, not found (try using -rpath or -rpath-link)

Unfortunately my company needs me in another area by now, so I must leave the BBB for a time, I really expect that doesn't be too long.

I'm infinitely grateful for your help and camaraderie.

I promise to write here again when I come back to the project.

Hope to read you soon again!

Regards, Jeremias.

jonnymo

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Oct 27, 2020, 9:40:35 PM10/27/20

to Beagle Board

Check in your sysroot folder under usr/lib/arm-linux-gnueabihf.

Jon

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