[edk2-devel] What is a "NULL" library class?
wonderfly at waymo.com
wonderfly at waymo.com
Thu Jan 28 18:21:58 UTC 2021
Hi,
I am super new to EDK2 development so excuse my ignorance. While browsing the code base I find a lot places where the keyword "NULL" is used in place of a LibraryClass, specifically in DSC files. For example,
in edk2/UefiPayloadPkg/UefiPayloadPkgIa32.dsc:
MdeModulePkg/Core/Dxe/DxeMain.inf {
<LibraryClasses>
NULL|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
}
What does this mean? Does it mean that the LzmaCustomDecompressLib.inf library instance is unconditionally linked for this package?
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