dump系列（2）C++程序异常或内存错误，导致闪退的解决办法：分析dump文件

#pragma once
#define SOFTWARE_VERSION      _T("V1.0.202001")
int GenerateMiniDump(PEXCEPTION_POINTERS pExceptionPointers);
LONG ApplicationCrashHandler(LPEXCEPTION_POINTERS lpExceptionInfo);

#include "stdafx.h"
#include "dump.h"
#include <Windows.h>
#include <DbgHelp.h>
 
//需要用到文件dbghelp.dll,可以从以下路径拷贝
//C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Extensions\Cpp\dbghelp.dll
//C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Extensions\Cpp\x64\dbghelp.dll
 
// 创建Dump文件
int GenerateMiniDump(PEXCEPTION_POINTERS pExceptionPointers)
{
    // 定义函数指针
    typedef BOOL(WINAPI * MiniDumpWriteDumpT)(
        HANDLE,
        DWORD,
        HANDLE,
        MINIDUMP_TYPE,
        PMINIDUMP_EXCEPTION_INFORMATION,
        PMINIDUMP_USER_STREAM_INFORMATION,
        PMINIDUMP_CALLBACK_INFORMATION
        );
 
    // 从"DbgHelp.dll"库中获取"MiniDumpWriteDump"函数
    MiniDumpWriteDumpT pfnMiniDumpWriteDump = NULL;
    HMODULE hDbgHelp = LoadLibrary(L"dbghelp.dll");
    if (NULL == hDbgHelp)
    {
        return EXCEPTION_CONTINUE_EXECUTION;
    }
 
    pfnMiniDumpWriteDump = (MiniDumpWriteDumpT)GetProcAddress(hDbgHelp, "MiniDumpWriteDump");
    if (NULL == pfnMiniDumpWriteDump)
    {
        FreeLibrary(hDbgHelp);
        return EXCEPTION_CONTINUE_EXECUTION;
    }
 
    // 创建dmp文件
    TCHAR szFileName[MAX_PATH] = { 0 };
    TCHAR* szVersion = SOFTWARE_VERSION;
    SYSTEMTIME stLocalTime;
    GetLocalTime(&stLocalTime);
    wsprintf(szFileName, L"%04d%02d%02d_%02d%02d%02d_%s.dmp",
        stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay,
        stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond, szVersion);
 
    HANDLE hDumpFile = CreateFile(szFileName, GENERIC_READ | GENERIC_WRITE,
        FILE_SHARE_WRITE | FILE_SHARE_READ, 0, CREATE_ALWAYS, 0, 0);
    if (INVALID_HANDLE_VALUE == hDumpFile)
    {
        FreeLibrary(hDbgHelp);
        return EXCEPTION_CONTINUE_EXECUTION;
    }
 
    // 写入dmp文件
    MINIDUMP_EXCEPTION_INFORMATION expParam;
    expParam.ThreadId = GetCurrentThreadId();
    expParam.ExceptionPointers = pExceptionPointers;
    expParam.ClientPointers = FALSE;
    pfnMiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(),
        hDumpFile, MiniDumpWithDataSegs, (pExceptionPointers ? &expParam : NULL), NULL, NULL);
 
    // 释放文件
    CloseHandle(hDumpFile);
    FreeLibrary(hDbgHelp);
    return EXCEPTION_EXECUTE_HANDLER;
}
 
// 处理Unhandled Exception的回调函数
LONG ApplicationCrashHandler(LPEXCEPTION_POINTERS lpExceptionInfo)
{
    // 这里做一些异常的过滤或提示
    if (IsDebuggerPresent())
    {
        return EXCEPTION_CONTINUE_SEARCH;
    }
 
    return GenerateMiniDump(lpExceptionInfo);
}

#include "stdafx.h"
#include "dump.h"
BOOL CSmartDispenserApp::InitInstance()
{
    //加入崩溃自动记录dump文件功能
    SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)ApplicationCrashHandler);
    ...
}