Re: Assert in ShellPkg with latest tianocore edk2 source on the Reference Platform

["Shah, Tapan" <tapandshah@hpe.com>]

It's possible. But I think gEfiUnicodeCollation2ProtocolGuid protocol is necessary for even other Shell libraries other than UefiShellLib in order to have Shell parser and other command line processing to work properly. That's why I added ASSERT if UefiShellLib fails to locate the protocol.
 
Reference platform should have EnglishDxe module to have this protocol installed properly.

  MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf

-----Original Message-----
From: Carsey, Jaben [mailto:jaben.carsey@intel.com] 
Sent: Wednesday, October 05, 2016 10:41 AM
To: Supreeth Venkatesh <Supreeth.Venkatesh@arm.com>; edk2-devel-01 <edk2-devel@lists.01.org>; Shah, Tapan <tapandshah@hpe.com>
Cc: Leif Lindholm <Leif.Lindholm@arm.com>; Carsey, Jaben <jaben.carsey@intel.com>
Subject: RE: Assert in ShellPkg with latest tianocore edk2 source on the Reference Platform

Tapan,

Could this be a side effect of your patch?  Should we allow the UefiShellLib to continue without this protocol and then return an error only when the OpenFile is called?

Also, it looks like we never properly initialize mUnicodeCollationProtocol.  We check for NULL in Constructor, but nothing else...

-Jaben

> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of 
> Supreeth Venkatesh
> Sent: Tuesday, October 04, 2016 3:51 PM
> To: edk2-devel-01 <edk2-devel@lists.01.org>
> Cc: Leif Lindholm <Leif.Lindholm@arm.com>
> Subject: [edk2] Assert in ShellPkg with latest tianocore edk2 source 
> on the Reference Platform
> Importance: High
> 
> All,
> 
> Recently, I updated to latest edk2 master (yesterday's) and I am 
> actually encountering assert in 
> ShellPkg/Library/UefiShellLib/UefiShellLib.c
> 
> if (mUnicodeCollationProtocol == NULL) {
>     Status = gBS->LocateProtocol (&gEfiUnicodeCollation2ProtocolGuid, 
> NULL, (VOID**)&mUnicodeCollationProtocol);
>     ASSERT_EFI_ERROR (Status);
>   }
> 
> It was working few weeks back and has now stopped working.
> It's probably because  the platform is unable to locate this protocol 
> "UnicodeCollationProtocol".
> Is Anyone else facing the same issue?
> Does the new ShellPkg requires additional packages/infs to be included 
> in the platform description file to work with latest changes  to get 
> past this error?
> 
> Thanks,
> Supreeth
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