windows dump file.

#include#include#include   #include#includeusing 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();