QtWebEngine Illegal Instruction

[rscr]

Hi,

I am developing a QT app for rpi 0 w. I have used buildroot to create my own image. I have a Qt app running on it, and now I need to add a web browser to my app. On a first approach I am using WebEngineView, but the app is not running, and I only have the import QtWebEngine 1.8, no more code related to WebEngine

# ./cp4gui -platform eglfs
Illegal instruction

.pro file

QT += quick webengine

CONFIG += c++11

# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Refer to the documentation for the
# deprecated API to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
        QTcp4Conf.cpp \
        main.cpp

RESOURCES += qml.qrc

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =

# Additional import path used to resolve QML modules just for Qt Quick Designer
QML_DESIGNER_IMPORT_PATH =

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target


HEADERS += \
    QTcp4Conf.h

• Qt PageForm:

import QtQuick 2.7
import QtQuick.Controls 2.0
import QtGraphicalEffects 1.0
import QtWebEngine 1.0


Page {
    id: page2
    width: 800
    height: 480
    title: qsTr("")

    /*WebEngineView{
        url: "https:/"
        //preferredWidth: 490
        //preferredHeight: 400
        scale: 0.5
        smooth: false
    }*/

}

• Qt main.cpp

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include "QTcp4Conf.h"
#include <qtwebengineglobal.h>



// ------------------ MAIN ----------------------------------------
int main(int argc, char *argv[])
{

   // enables the virtual keyboard by setting the QT_IM_MODULE
   qputenv("QT_IM_MODULE", QByteArray("qtvirtualkeyboard"));

   // lets the web view automatically scale on high-dpi displays
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

    //initis the QtWebEngine
    QtWebEngine::initialize();

    QGuiApplication app(argc, argv);

    // Añadir tipos propios
    qmlRegisterType<QTcp4Conf>("com.rscr.cp4",1,0,"QTcp4Conf");

    QQmlApplicationEngine engine;
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                     &app, [url](QObject *obj, const QUrl &objUrl) {
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);
    engine.load(url);

    return app.exec();
}

Any idea?

Kind Regards,

Rafa

[RiccardoS]

I have the same problem.
I've compiled the WebEngine Quick Nano Browser example for my Raspberry Pi Zero. When I try to run the application I get the "illegal instruction" error.

The root filesystem and SDK are generated with buildroot-2021.02.1.tar.gz using the bcmrpi_defconfig.
I use eglfs as platform plugin. It works without problems with the other OpenGL examples.

The other Qt modules (core, network, gui etc. etc.) works perfectly.

Someone has some tip to fix this problem?

Thanks