一个宏命令，就可以程序崩溃时生成dump文件

来源：互联网发布：淘宝哪家卖外设保真编辑：程序博客网时间：2024/05/16 19:51

创建头文件DumpFile.h, 将下列代码放进文件中

#pragma once
#include <windows.h>
#include < Dbghelp.h>
#include <iostream>
#include <vector>
using namespace std;

#pragma comment(lib, "Dbghelp.lib")

namespace NSDumpFile
{
    void CreateDumpFile(LPCWSTR lpstrDumpFilePathName, EXCEPTION_POINTERS *pException)
    {
        // 创建Dump文件
        //
        HANDLE hDumpFile = CreateFile(lpstrDumpFilePathName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);

        // 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);

CloseHandle(hDumpFile);
}

    LPTOP_LEVEL_EXCEPTION_FILTER WINAPI MyDummySetUnhandledExceptionFilter(LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter)
    {
        return NULL;
    }

    BOOL PreventSetUnhandledExceptionFilter()
    {
        HMODULE hKernel32 = LoadLibrary(_T("kernel32.dll"));
        if (hKernel32 ==   NULL)
            return FALSE;

        void *pOrgEntry = GetProcAddress(hKernel32, "SetUnhandledExceptionFilter");
        if(pOrgEntry == NULL)
            return FALSE;

        unsigned char newJump[ 100 ];
        DWORD dwOrgEntryAddr = (DWORD) pOrgEntry;
        dwOrgEntryAddr += 5; // add 5 for 5 op-codes for jmp far

        void *pNewFunc = &MyDummySetUnhandledExceptionFilter;
        DWORD dwNewEntryAddr = (DWORD) pNewFunc;
        DWORD dwRelativeAddr = dwNewEntryAddr - dwOrgEntryAddr;

        newJump[ 0 ] = 0xE9; // JMP absolute
        memcpy(&newJump[ 1 ], &dwRelativeAddr, sizeof(pNewFunc));
        SIZE_T bytesWritten;
        BOOL bRet = WriteProcessMemory(GetCurrentProcess(),    pOrgEntry, newJump, sizeof(pNewFunc) + 1, &bytesWritten);
        return bRet;
    }

    LONG WINAPI UnhandledExceptionFilterEx(struct _EXCEPTION_POINTERS *pException)
    {
        TCHAR szMbsFile[MAX_PATH] = { 0 };
        ::GetModuleFileName(NULL, szMbsFile, MAX_PATH);
        TCHAR* pFind = _tcsrchr(szMbsFile, '\\');
        if(pFind)
        {
            *(pFind+1) = 0;
            _tcscat(szMbsFile, _T("CrashDumpFile.dmp"));
            CreateDumpFile(szMbsFile, pException);
        }

        // TODO: MiniDumpWriteDump
        FatalAppExit(-1, _T("Fatal Error"));
        return EXCEPTION_CONTINUE_SEARCH;
    }

    void RunCrashHandler()
    {
        SetUnhandledExceptionFilter(UnhandledExceptionFilterEx);
        PreventSetUnhandledExceptionFilter();
    }
};

#define DeclareDumpFile() NSDumpFile::RunCrashHandler();

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