> On May 5, 2015, at 1:16 PM, Duran, Leo <leo.du...@amd.com> wrote:
>
> Thanks Tim & Andrew.
>
The PCD lingo can be a confusing.
> 1) The .DEC file declares the PCD as:
> [PcdsFixedAtBuild.common, PcdsDynamic.common, PcdsPatchableInModule.common]
>
The .DEC declares the existence of the PCD and the mappings that are legal. It
also contains a default value that is used if it is not set in the platform
.DSC file.
The INF file really matches the form of the library APIs that are used. It is
usually best to use the PCD from that is generic. Basically let the .DSC file
pick the form. You can also add an optional default, it overrides the one in
the .DEC file
> 2) As suggested, in my .DSC file I define it as:
> [PcdsDynamicDefault.common]
>
> 3) But now (at PEIM init-time), when I invoke PcdSet64 () I get an ASSERT ...
> PcdLib.c(131)
>
If your DSC points at
https://svn.code.sf.net/p/edk2/code/trunk/edk2/MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
you are going to ASSERT when you try to make the library calls. You need to
point at
https://svn.code.sf.net/p/edk2/code/trunk/edk2/MdePkg/Library/PeiPcdLib/PeiPcdLib.inf
that will depend on a PPI published by this PEIM
https://svn.code.sf.net/p/edk2/code/trunk/edk2/MdeModulePkg/Universal/PCD/Pei/
The flexibility in the edk2 can be confusing. I find it useful to make the
build.exe command generate a log file.
-y REPORTFILE, --report-file=REPORTFILE
Create/overwrite the report to the specified filename.
-Y REPORTTYPE, --report-type=REPORTTYPE
Flags that control the type of build report to
generate. Must be one of: [PCD, LIBRARY, FLASH,
DEPEX, BUILD_FLAGS, FIXED_ADDRESS, EXECUTION_ORDER].
To specify more than one flag, repeat this option on
the command line and the default flag set is [PCD,
LIBRARY, FLASH, DEPEX, BUILD_FLAGS, FIXED_ADDRESS]
The log file will show you a global view of what the PCDs got set to, and a
per driver view. It will also show the set of specific libraries linked into a
module.
Thanks,
Andrew Fish
> Anyway, it seems like I've done the proper declaration (.DSC file wise)
> Thanks again for the feedback.
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