Qt_vc++崩溃日志分析

环境

Clion ：2019.3.6

Qt ：5.9.6（vc++2015）

编译工具：vs2015 update3

崩溃日志收集

自行百度，会查到很多，一下代码仅供参考（来自https://blog.csdn.net/weixin_45571586/article/details/128697309）

#ifndef OUTPUTDUMP_H   //避免同一个文件只会被包含一次
#define OUTPUTDUMP_H

//#pragma once         //避免同一个文件只会被包含一次
#include"ccrashstack.h"
#include <shlobj.h>
#include <QDebug>
#include <DbgHelp.h>
#include <QDateTime>
#pragma comment(lib, "dbghelp.lib")  //使用注释方式引入库dbghelp.lib或编译目录。

/*------------------生成dump文件------------------------*/
LONG crashHandler(EXCEPTION_POINTERS *pException)
{
    QString curDataTime = QDateTime::currentDateTime().toString("yyyyMMddhhmmss");
    QString dumpName = curDataTime + ".dmp";

    HANDLE dumpFile = CreateFile((LPCWSTR)QString("./" + dumpName).utf16(),GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
    if(dumpFile != INVALID_HANDLE_VALUE)
    {
        MINIDUMP_EXCEPTION_INFORMATION dumpInfo;
        dumpInfo.ExceptionPointers = pException;
        dumpInfo.ThreadId = GetCurrentThreadId();
        dumpInfo.ClientPointers = TRUE;

        MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(),dumpFile, MiniDumpNormal, &dumpInfo, NULL, NULL);
        CloseHandle(dumpFile);
    }
    else
    {
        qDebug() << "dumpFile not vaild";
    }

    return EXCEPTION_EXECUTE_HANDLER;
}

//防止CRT（C runtime）函数报错可能捕捉不到
void DisableSetUnhandledExceptionFilter()
{
    void* addr = (void*)GetProcAddress(LoadLibrary(L"kernel32.dll"), "SetUnhandledExceptionFilter");
    if(addr)
    {
        unsigned char code[16];
        int size = 0;

        code[size++] = 0x33;
        code[size++] = 0xC0;
        code[size++] = 0xC2;
        code[size++] = 0x04;
        code[size++] = 0x00;

        DWORD dwOldFlag, dwTempFlag;
        VirtualProtect(addr, size, PAGE_READWRITE, &dwOldFlag);
        WriteProcessMemory(GetCurrentProcess(), addr, code, size, NULL);
        VirtualProtect(addr, size, dwOldFlag, &dwTempFlag);
    }
}

#endif // OUTPUTDUMP_H

#ifndef OUTPUTLOG_H
#define OUTPUTLOG_H  //避免同一个文件不会被包含多次 条件编译 满足一定条件下才会被编译

//#pragma once       //避免同一个文件不会被包含多次
#include <QDir>
#include <QFile>
#include <QMutex>
#include <QTextStream>
#include <QTime>

#include"ccrashstack.h"

/*---------------打日志文件----------------------*/
void outputMessage(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
    static QMutex mutex;
    mutex.lock();
    QString text;
    switch(type)
    {
    case QtDebugMsg:
        text = QString("Debug:");
        break;
    case QtWarningMsg:
        text = QString("Warning:");
        break;
    case QtCriticalMsg:
        text = QString("Critical:");
        break;
    case QtFatalMsg:
        text = QString("Fatal:");
    }
    QString context_info = QString("File:(%1) Line:(%2)").arg(QString(context.file)).arg(context.line);
    QString current_date_time = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss ddd");
    QString current_date = QString("(%1)").arg(current_date_time);
    QString message = QString("%1 \r\n%2 %3 \r\n%4").arg(current_date).arg(text).arg(context_info).arg(msg);

    //判断文件夹是否存在，不存在新建
    QString aFile = QDir::currentPath() + "/LogFile";
    QDir dir(aFile);
    if(!dir.exists())
    {
        dir.mkdir(aFile);//只创建一级子目录，即必须保证上级目录存在
    }

    QString current_time = QDateTime::currentDateTime().toString("yyyyMMdd");
    QFile file(aFile+"/log"+current_time+".txt");
    file.open(QIODevice::WriteOnly | QIODevice::Append);
    QTextStream text_stream(&file);
    text_stream << message << "\r\n \r\n";

    file.flush();
    file.close();
    mutex.unlock();
}
#endif // OUTPUTLOG_H

#include "mainwindow.h"
#include <QApplication>
#include"outputDump.h" //生成dump头文件
#include"outputLog.h"  //生成日志头文件

int main(int argc, char *argv[])
{
    /*-------1、注冊异常捕获函数 生成.dmp文件--------*/
    SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)crashHandler);
    DisableSetUnhandledExceptionFilter();

    QApplication a(argc, argv);

    /*-------2、注册MessageHandler 生成日志文件--------*/
    qInstallMessageHandler(outputMessage);

    MainWindow w;
    w.show();
    return a.exec();
}