/* Win64 exception handler for interpreter frame. */
LJ_FUNCA EXCEPTION_DISPOSITION lj_err_unwind_win64(EXCEPTION_RECORD *rec,
void *cf, CONTEXT *ctx, UndocumentedDispatcherContext *dispatch)
{
lua_State *L = cframe_L(cf);
int errcode = LJ_EXCODE_CHECK(rec->ExceptionCode) ?
LJ_EXCODE_ERRCODE(rec->ExceptionCode) : LUA_ERRRUN;
if ((rec->ExceptionFlags & 6)) { /* EH_UNWINDING|EH_EXIT_UNWIND */
/* Unwind internal frames. */
err_unwind(L, cf, errcode);
} else {
void *cf2 = err_unwind(L, cf, 0);
if (cf2) { /* We catch it, so start unwinding the upper frames. */
if (rec->ExceptionCode == LJ_MSVC_EXCODE) {
#ifdef _MSC_VER
__DestructExceptionObject(rec, 1);
#endif
setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
} else if (!LJ_EXCODE_CHECK(rec->ExceptionCode)) {
/* Don't catch access violations etc. */
return ExceptionContinueSearch;
}
/* Unwind the stack and call all handlers for all lower C frames
** (including ourselves) again with EH_UNWINDING set. Then set
** rsp = cf, rax = errcode and jump to the specified target.
*/
RtlUnwindEx(cf, (void *)((cframe_unwind_ff(cf2) && errcode != LUA_YIELD) ?
lj_vm_unwind_ff_eh :
lj_vm_unwind_c_eh),
rec, (void *)errcode, ctx, dispatch->HistoryTable);
/* RtlUnwindEx should never return. */
}
}
return ExceptionContinueSearch;
}
/*********************************************************************
* __CxxUnregisterExceptionObject (MSVCRT.@)
*/
void CDECL __CxxUnregisterExceptionObject(cxx_frame_info *frame_info, BOOL in_use)
{
thread_data_t *data = msvcrt_get_thread_data();
TRACE("(%p)\n", frame_info);
if(frame_info->rec == (void*)-1)
return;
_FindAndUnlinkFrame(&frame_info->frame_info);
if(data->exc_record->ExceptionCode == CXX_EXCEPTION && !in_use
&& _IsExceptionObjectToBeDestroyed((void*)data->exc_record->ExceptionInformation[1]))
__DestructExceptionObject(data->exc_record);
data->exc_record = frame_info->rec;
}