Qt_vc++崩溃日志分析-编程知识

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();
}