win c++异常处理并生成 .dmp 文件

win c++异常处理并生成 .dmp 文件

依赖win10库文件 DbgHelp.dll 或者 DbgHelp.lib

CrashHander.h

#ifndef CRASH_H
#define CRASH_H

//异常处理
#include <Windows.h>
#include <DbgHelp.h>
#include <iostream>
#include <sstream>
#include <iomanip>



/*!
 * \brief 整数转16进制字符串
 * \param s_src
 * \param len
 * \return
 */
static std::string convertToBase16Str(const unsigned char* s_src, int len)
{
    std::string str("0x");
    std::stringstream ioss;

    int a = 0x1234;
    char b = static_cast<char>(a);
    if (b == 0x12)
    {
        //cout << "大端模式" << endl;
        for (int i = 0; i < len; i++) {
            ioss << std::hex << std::setw(2) << std::setfill('0') << (int)s_src[i];
            str.append(ioss.str());
            ioss.str("");
        }
    }
    else if (b == 0x34)
    {
        //cout << "小端模式" << endl;
        int i = len-1;
        while(i>=0) {
            ioss << std::hex /*<< std::setw(2) << std::setfill('0')*/ << (int)s_src[i--];
            str.append(ioss.str());
            ioss.str("");
        }
    }
    ioss.clear();
    return str;
}



//异常捕获
static LONG ApplicationCrashHandler(EXCEPTION_POINTERS *pException)
{
    wchar_t szFileName[MAX_PATH] = { 0 };
    wchar_t szVersion[] = L"DumpFile";
    SYSTEMTIME stLocalTime;
    GetLocalTime(&stLocalTime);

    //wsprintf in user32.lib
    wsprintf(szFileName, L"%s-%04d%02d%02d-%02d%02d%02d.dmp",
    szVersion, stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay,
    stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond);
    
    //创建 Dump 文件
    HANDLE hDumpFile = CreateFile(szFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hDumpFile != INVALID_HANDLE_VALUE)
    {
        //Dump信息
        MINIDUMP_EXCEPTION_INFORMATION dumpInfo;
        dumpInfo.ExceptionPointers = pException;
        dumpInfo.ThreadId = GetCurrentThreadId();
        dumpInfo.ClientPointers = TRUE;

        //写入Dump文件内容
        MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hDumpFile, MiniDumpNormal, &dumpInfo, NULL, NULL);
    }

    //错误输出
    EXCEPTION_RECORD* record = pException->ExceptionRecord;
    std::string errCode ="ErrCode:"+ convertToBase16Str((const unsigned char*)&record->ExceptionCode,sizeof(record->ExceptionCode));
    std::string errAddr ="ErrAddr:"+ convertToBase16Str((const unsigned char*)&record->ExceptionAddress,sizeof(record->ExceptionAddress));

    std::cout<<("!!!---------------App Crash ----------------!!! \n");
    std::cout<<"errCode : "<<errCode<<std::endl;
    std::cout<<"errAddr : "<<errAddr<<std::endl;

    fflush(stdout);

    return EXCEPTION_EXECUTE_HANDLER;
}

//注册异常处理函数
static int crashInit = []()->int{
    std::cout<<"----------- Register crash hander -----------"<<std::endl;
    SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)ApplicationCrashHandler);
    return 0;
}();

#endif // CRASH_H

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pro

QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
QMAKE_LFLAGS_RELEASE = $$QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO
LIBS +=  -lDbgHelp -luser32
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main.cpp

#include <QApplication>
#include <QDebug>
#include<iostream>
#include "CrashHander.h"


int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
           std::vector<int> v(5);
           std::cout << v.at(10); // vector::at() 抛出 std::out_of_range

    return a.exec();
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