Re: [edk2-devel] [edk2] DSC file : override FILE_GUID rule

["Laszlo Ersek" <lersek@redhat.com>]

On 11/07/19 15:59, Gao, Liming wrote:
> In FDF, you also need to specify this file guid and match the one in DSC. The syntax is like below:
> 
> INF FILE_GUID= D1D74FE9-7A4E-41D3-A0B3-67F13AD34D94 UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf

Thanks! (I assume there is no space character right after "FILE_GUID=".)

Cheers
Laszlo

> Thanks
> Liming
>> -----Original Message-----
>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Laszlo Ersek
>> Sent: Thursday, November 7, 2019 6:56 PM
>> To: devel@edk2.groups.io; tigerliu@zhaoxin.com
>> Subject: Re: [edk2-devel] [edk2] DSC file : override FILE_GUID rule
>>
>> On 11/07/19 05:51, Tiger Liu(BJ-RD) wrote:
>>> Dear All:
>>> I have a question about FILE_GUID override rule in dsc file.
>>> For example:
>>>   ......
>>>   UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf {
>>>     <Defines>
>>>       FILE_GUID = D1D74FE9-7A4E-41D3-A0B3-67F13AD34D94
>>>     ......
>>>   }
>>>
>>> Usually, will define FILE_GUID in PiSmmCpuDxeSmm.inf .
>>>
>>> Why override it in dsc file?
>>
>> IIRC, such overrides allow the platform DSC file to build the same
>> module multiple times, most likely with other overrides too (such as PCD
>> and lib class resolution). The resultant binaries will not conflict in
>> any firmware volume / firmware file-system, by FILE_GUID.
>>
>> I don't remember the syntax, to be used in the FDF file, for refering to
>> all of the builds of the same module INF file.
>>
>> Thanks
>> Laszlo
>>
>>
>> 
>