/*********************************************************************
* __CxxRegisterExceptionObject (MSVCRT.@)
*/
BOOL CDECL __CxxRegisterExceptionObject(EXCEPTION_RECORD **rec, cxx_frame_info *frame_info)
{
thread_data_t *data = msvcrt_get_thread_data();
TRACE("(%p, %p)\n", rec, frame_info);
if (!rec || !*rec)
{
frame_info->rec = (void*)-1;
frame_info->unk = (void*)-1;
return TRUE;
}
frame_info->rec = data->exc_record;
frame_info->unk = 0;
data->exc_record = *rec;
_CreateFrameInfo(&frame_info->frame_info, (void*)(*rec)->ExceptionInformation[1]);
return TRUE;
}
void *CallCatchBlock(
EHExceptionRecord *pExcept,
EHRegistrationNode *pRN, // Dynamic info of function with catch
void *pContext, // ignored
DispatcherContext *pDC, // Context within subject frame
FuncInfo *pFuncInfo, // Static info of function with catch
void *handlerAddress, // Code address of handler
int CatchDepth, // How deeply nested in catch blocks are we?
unsigned int *pSp
)
{
FRAMEINFO frameinfo;
PFRAMEINFO pframeinfo;
EHExceptionRecord *pExceptTmp;
unsigned char *pRetAddr;
_CreateFrameInfo(&frameinfo, pDC, pContext);
frameinfo.pExitContext = (void *)GetSP();
if (pDC->pftinfo == _pftinfo)
{
// okay we are throw and catch in the same code fragment
_pftinfo->pFrameInfo = _pFrameInfoChain;
}
else
{
// we are not throw and catch in the same code fragment
// we need to chain the _pFrameInfoChain after the pDC->pftinof->pFrameInfo
// we should have got all the Frames saved so far, no matter how many code fragments we have been through
if (pDC->pftinfo->pFrameInfo != NULL)
{
// not chain if the case where CRT Is a DLL for everyone
if ( pDC->pftinfo->pFrameInfo != _pFrameInfoChain->pNext)
{
_pFrameInfoChain->pNext = (PFRAMEINFO)(pDC->pftinfo->pFrameInfo);
}
}
}
//call the handler
pRetAddr = (unsigned char *)_CallSettingFrame(handlerAddress, pRN);
*pSp = (unsigned int)GetR4();
//destructing the object
if (pExcept && (*(unsigned int *)pExcept != 0xffffffff))
{
DestructExceptionObject(pExcept, TRUE, pContext);
}
if (_pFrameInfoChain)
{
// don't forget to clear out the frame info the handler we are about
// to remove since most if not all off them are stack elements
_ASSERTE(_pFrameInfoChain->pftinfo != NULL);
_ASSERTE(_pFrameInfoChain->pftinfo->pFrameInfo != NULL);
pframeinfo = (PFRAMEINFO)_pFrameInfoChain->pftinfo->pFrameInfo;
if (pframeinfo)
_pFrameInfoChain->pftinfo->pFrameInfo = pframeinfo->pNext;
_pFrameInfoChain = _pFrameInfoChain->pNext; //remove current handler from the chain
cNested--;
_pftinfo->pFrameInfo = _pFrameInfoChain;
}
pframeinfo = _pFrameInfoChain;
pExceptTmp = pExcept;
while (pframeinfo && (pframeinfo->pSp <= (PPMSTACK)pRN))
{
// we should destruct any exception objects before this handler's frame
if ((EHExceptionRecord *)(pframeinfo->pExcept) != pExceptTmp)
{
// this is not a re-throw, do destroy
DestructExceptionObject((EHExceptionRecord *)pframeinfo->pExcept, TRUE, (void *)pframeinfo->dwRTOC);
pExceptTmp = (EHExceptionRecord *)(pframeinfo->pExcept);
*(unsigned int *)(pframeinfo->pExcept) = 0xffffffff;
pframeinfo->pExcept = NULL; //???
}
pframeinfo = pframeinfo->pNext;
_pFrameInfoChain = pframeinfo; //remove handler frame from the list
cNested--;
_pftinfo->pFrameInfo = _pFrameInfoChain;
}
return (void *)pRetAddr;
}
