??Windows????????С? -- ??????

?????????????

????CreateThread ????????????? ???? ????????????????????????????ü????2???? ??????????????1???????????????????1 ??????????????????????? CreateThread ??????????????????????????????????????????????????????????????????????1??????????豸STILE_ACTIVE??0x103??????????????δ????????

????????????????????????棬??????????á???????????????????????????????????????????????????д??????????????????1???????????????????????????

?????????????????????CPU?????????????????????context????????????????????????????????CPU???????????CONTEXT???????????????????С?

?????????????????????????CONTEXT??????????????????pfnStartAddr????????е??????????????????????RtlUserThreadStart??????????

VOID  RtlUserThreadStart(PTHREAD_START_ROUTINE pfnStartAddr?? PVOID pvParam) {
             __try {
                      ExitThread((pfnStartAddr)(pvParam));
                 }
            __except(UnhandledExceptionFilter(GetExceptionInformation())) {
                    ExitProcess(GetExceptionCode());
               }
           // NOTE: We never get here.
    }

???????????????????????CREATE_SUSPENDED?????????????CreateThread???????????????д???????????????????????0???????????????????????????С???????????? CPU??????м????????????????????б???????????????????????????????????д??????????????

????????????RtlUserThreadStart??????????????????????飺

????Χ??????????????????????????????SEH????????????????????????????????κ????????????????????

???????????????????????CreateThread??????pvParam????????????

?????????????????RtlUserThreadStart????ExitThread???????????????????????????????????????ü???????????????????С?

??????????????????δ???????????RtlUserThreadStart???????????SEH?????????????????????ζ??????????????????????????????????????????RtlUserThreadStart?????ExitProcess?????????????????????????????????

?????????????????????????????????????RtlUserThreadStart????RtlUserThreadStart????????????????C/C++???п???????????????????????????_tmain??_tWinMain??????

???????C/C++???п????????

?????????C??C++???????ó??????????У????????????????????????????C/C++???п????????????????????????C/C++???п????????Щ????????????????????????????飬?????????????????

??????дC/C++??ó????????????ò???????CreateThread????????????????C/C++???п???_beginthreadex??

 uintptr_t __cdecl _beginthreadex (  void *psa?? unsigned cbStackSize??  unsigned (__stdcall * pfnStartAddr) (void *)??
                 void * pvParam??  unsigned dwCreateFlags??  unsigned *pdwThreadID)
    {
                 _ptiddata     ptd;         // Pointer to thread's data block
                 uintptr_t      thdl;         // Thread's handle
                 // Allocate data block for the new thread.
               if ((ptd = (_ptiddata)_calloc_crt(1?? sizeof(struct _tiddata))) == NULL)
                       goto   error_return; // Initialize the data block.
              initptd(ptd);             // Save the desired thread function and the parameter
              // we want it to get in the data block.
              ptd->_initaddr = (void *) pfnStartAddr;
              ptd->_initarg = pvParam;
              ptd->_thandle = (uintptr_t)(-1); // Create the new thread.
              thdl = (uintptr_t) CreateThread ((LPSECURITY_ATTRIBUTES)psa?? cbStackSize?? _threadstartex ?? (PVOID)         ptd?? dwCreateFlags?? pdwThreadID);
              if (thdl == 0) {
                        // Thread couldn't be created?? cleanup and return failure.
                       goto error_return;
             } // Thread created OK?? return the handle as unsigned long.
       return(thdl);
      error_return:
         // Error: data block or thread couldn't be created.
        // GetLastError() is mapped into errno corresponding values
        // if something wrong happened in CreateThread.
        _free_crt(ptd);
       return((uintptr_t)0L);
    }