Hi Laszlo,
The step to reproduce as below:
1. add below change
diff --git a/IntelFsp2Pkg/IntelFsp2Pkg.dsc b/IntelFsp2Pkg/IntelFsp2Pkg.dsc
index 26cd3da43c3f..d43cb5be6472 100644
--- a/IntelFsp2Pkg/IntelFsp2Pkg.dsc
+++ b/IntelFsp2Pkg/IntelFsp2Pkg.dsc
@@ -62,7 +62,10 @@ [Components]
IntelFsp2Pkg/Library/BaseDebugDeviceLibNull/BaseDebugDeviceLibNull.inf
IntelFsp2Pkg/Library/SecFspSecPlatformLibNull/SecFspSecPlatformLibNull.inf
- IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf
+ IntelFsp2Pkg/FspSecCore/FspSecCoreT.inf {
+ <LibraryClasses>
+ NULL|UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
+ }
IntelFsp2Pkg/FspSecCore/FspSecCoreM.inf
IntelFsp2Pkg/FspSecCore/FspSecCoreS.inf
IntelFsp2Pkg/FspSecCore/Fsp22SecCoreS.inf
2. build -p IntelFsp2Pkg\IntelFsp2Pkg.dsc -b DEBUG -a IA32 -t VS2019 and I can
see BaseUefiCpuLib.lib(InitializeFpu.obj) : error LNK2005:
_InitializeFloatingPointUnits already defined in
FspSecCoreT.lib(InitializeFpu.obj)
I can't reproduce it with the original edk2 or edk2-platforms, but our project
have the depend on ApicLib, so if the ApicLib depend on UefiCpuLib, it will
break our project build.
Below
Thanks.
> -----Original Message-----
> From: Laszlo Ersek <ler...@redhat.com>
> Sent: Tuesday, June 23, 2020 7:16 PM
> To: devel@edk2.groups.io; Jiang, Guomin <guomin.ji...@intel.com>;
> garrett.kirkend...@amd.com
> Cc: Ni, Ray <ray...@intel.com>; Dong, Eric <eric.d...@intel.com>
> Subject: Re: [edk2-devel] [PATCH v6 1/4] PcAtChipsetPkg:
> PcAtChipsetPkg.dsc add UefiCpuLib LibraryClass
>
> On 06/23/20 02:52, Guomin Jiang wrote:
> > Hi Garrett,
> >
> > Thanks for report quickly and it work and the 'Mac format issue disappear'.
> >
> > But another build error occur 'error LNK2005: _InitializeFloatingPointUnits
> already defined in FspSecCoreT.lib(InitializeFpu.obj)'
> > It seem that result by ApicLib who depend UefiCpuLib now.
>
> Yes.
>
> > I want to know why you add this dependency,
>
> It was discussed on the list in advance.
>
> [edk2-devel] UefiCpuPkg: Discuss: Move StandardSignatureIsAuthenticAMD
> function to BaseUefiCpuLib
>
> https://edk2.groups.io/g/devel/message/61079
>
> In addition, we have investigated all the platforms in the open source
> edk2 and edk2-platforms trees that could require an update due to the new
> dependency:
>
> https://edk2.groups.io/g/devel/message/61525
>
> And this series is in fact addressing them all.
>
> > have any other way to do it, for example, add the dependency to the dsc
> file.
>
> Please describe how you can reproduce the link error using edk2 and edk2-
> platforms content *only* (= using open source components only).
>
> Thanks
> Laszlo
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