[edk2] Why the DEBUG can't output the full string?

[krishnaLee]

Hi,
For example,the follow code:
//-code-start
ConfigRequestHdr = HiiConstructConfigHdr (&mBlankDrvFormSetGuid, VariableName, 
PrivateData1->DriverHandle[0]);
Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);
ConfigRequest = AllocateZeroPool (Size);
ASSERT (ConfigRequest != NULL);
AllocatedRequest = TRUE;
UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", 
ConfigRequestHdr, (UINT64)BufferSize);
FreePool (ConfigRequestHdr);
//-code-end


I add a debug message at the end of code:
DEBUG((EFI_D_INFO,"construct-ConfigRequest:%s",ConfigRequest));
DEBUG((EFI_D_INFO,"\r\n"));


and the output will be:
construct-ConfigRequest:GUID=db3b005aa15068459170ebd49e16c47c&NAME=00420044004d0079004900660072004e00560044006100740061&PATH=01041400db3b005aa15068459170ebd49e16c47c7fff0400&OFFSET=0&WIDTH=0000000000


If I add another debug message at the end of code:
DEBUG((EFI_D_INFO,"construct-ConfigRequest:"));
for(UINTN i=0;i<Size;i++)
{
DEBUG((EFI_D_INFO,"%c",ConfigRequest[i]));
}
DEBUG((EFI_D_INFO,"\r\n"));


and the output will be:
construct-ConfigRequest:GUID=db3b005aa15068459170ebd49e16c47c&NAME=00420044004d0079004900660072004e00560044006100740061&PATH=01041400db3b005aa15068459170ebd49e16c47c7fff0400&OFFSET=0&WIDTH=0000000000000052
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my platform:
win10_x64 + udk2017 + vs2015




by krishna
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