QT 5.15提高细分故障（核心倾倒），但无用的coredump文件

Question

为了学习如何使用Coredump文件在代码中获取错误行，我编写了一个示例项目，但是从Coredump文件的消息中，我一无所知。是否有人知道如何为QT（C ++＆amp;＆amp; qml）创建有用的Coredump文件？ 这是我的项目，当单击按钮触发SEG故障时！

testDebugqml.pro

QT += 3dcore 3drender 3dinput 3dlogic 3dextras 3danimation qml quick 3dquick  widgets
CONFIG += c++11

DEFINES += QT_DEPRECATED_WARNINGS

SOURCES += main.cpp \
    retest.cpp

RESOURCES += qml.qrc

QML_IMPORT_PATH =

QML_DESIGNER_IMPORT_PATH =

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

HEADERS += \
    retest.h

QMAKE_CC += -g
QMAKE_CXX += -Wall -Wextra -g
QMAKE_LINK += -g

这是main.cpp

#include "retest.h"
#include "trackballcameracontroller.h"

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQmlContext>

#include <QLine>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;

    engine.rootContext()->setContextProperty(QLatin1String("reTest"), RETest::getInstance());

    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));


    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

，这是retest.h and retest.cpp文件：

reTest.h

class RETest : public QObject
{
    Q_OBJECT
    SINGLETON(RETest)
    QML_WRITABLE_PROPERTY(int, translation)
public:
    explicit RETest(QObject *parent = nullptr);

    Q_INVOKABLE void func();

signals:

public slots:
};

#include "retest.h"

RETest::RETest(QObject *parent) : QObject(parent)
{

}

void RETest::func()
{
    int *ptemp = new int();

    qDebug() << (ptemp != nullptr);
    if(ptemp){
        delete ptemp;
    }
    *ptemp = 1;

}

这是QML文件，单击按钮调用SEG故障函数：

import QtQuick 2.9
import QtQuick.Controls 2.15
import QtQuick.Window 2.2


import Qt3D.Core 2.15
import Qt3D.Render 2.15
import Qt3D.Extras 2.15
import Qt3D.Logic 2.15
import Qt3D.Input 2.15
import Qt3D.Animation 2.15
import QtQuick.Scene3D 2.15
import QtQuick.Controls.Material 2.15
import TrackballCameraController 1.0

ApplicationWindow {
    id:root

    visible: true
    width: 640
    height: 480
    title: qsTr("Scroll")


    Button{
        text:"click"
        anchors.right: parent.right
        onClicked:{
            //trigger a segment fault!
            reTest.func()
        }
    }
}

这是GDB中的核心转储消息：

GNU gdb (Ubuntu 8.1-0ubuntu3.2) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./testDebugqml...done.
[New LWP 12981]
[New LWP 12984]
[New LWP 12982]
[New LWP 12989]
[New LWP 12983]
[New LWP 12985]
[New LWP 12987]
[New LWP 12988]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `./testDebugqml'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  tcache_get (tc_idx=0) at malloc.c:2952
2952    malloc.c: No such file or directory.
[Current thread is 1 (Thread 0x7f6eb2bb0800 (LWP 12981))]

那么，有什么问题核心转储文件参考QT！ CoreDump文件无用，我无法应用这种在其他更复杂的项目上找到细分故障的方法！