[edk2-devel] How to assign NULL to a VOID* PCD?
Michael D Kinney
michael.d.kinney at intel.com
Wed Dec 16 21:28:20 UTC 2020
Hi Tim,
Assigning NULL to a VOID* PCD is not supported.
I recommend you design the structure that the VOID* type PCD points to be self describing. You can put a count field or if it is an array, use can use a tag in a field to mark the end of the array.
Mike
From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Tim Lewis
Sent: Wednesday, December 16, 2020 11:06 AM
To: devel at edk2.groups.io
Subject: [edk2-devel] How to assign NULL to a VOID* PCD?
I want the PCD database to contain a NULL to a PCD that is of type VOID* but this does not seem to be allowed in the .dsc files.
In .dec files, I can assign an <Expression> for the value, which lets me put a 0. But the syntax for .dsc files only lets me put data. So for array cases where I want 0 entries, I am always forced to put at least 1 dummy entry. Normally, I would like to use PcdGetSize to get the total array size.
Any pointers?
Thanks,
Tim
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