1) Add an example in EdkCompatibilityPkg.dsc to show how the compatibility build switch is turned on for Framework HII modules.

2) Add the incompatibility changes in ChangeLog.txt.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7384 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/ChangeLog.txt

@@ -107,3 +107,27 @@ EDK_r7286: Compatible: qhuang8
 
 	Possible impact:
   None.
+
+EDK_r7342: No-Compatible: qwang12
+  Rename module names in EdkCompatibility/Compatibility directory from ***To*** to ***On***.
+  For example, Fv2ToFvThunk is renamed to Fv2OnFvThunk.
+  AAAOnBBB means this module produce AAA Protocol/PPI based on BBB. This change improves the readability and 
+  help developers to select correct thunk module to use.
+
+  Code Changes:
+  These module directory and module INF file name is updated:
+   DeviceIoToPciRootBridgeIoThunk -> DeviceIoToPciRootBridgeIoThunk
+   FrameworkHiiToUefiHiiThunk  ->  FrameworkHiiToUefiHiiThunk
+   Fv2ToFvThunk  -> Fv2ToFvThunk
+   FvFileLoaderToLoadFileThunk  -> FvFileLoaderToLoadFileThunk
+   FvToFv2Thunk  -> FvToFv2Thunk
+   PciCfg2ToPciCfgThunk  -> PciCfg2ToPciCfgThunk
+   PciCfgToPciCfg2Thunk  -> PciCfgToPciCfg2Thunk
+   ReadOnlyVariable2ToReadOnlyVariableThunk  -> ReadOnlyVariable2ToReadOnlyVariableThunk
+   ReadOnlyVariableToReadOnlyVariable2Thunk  -> ReadOnlyVariableToReadOnlyVariable2Thunk
+   Uc2ToUcThunk  -> Uc2ToUcThunk
+   UcToUc2Thunk  -> UcToUc2Thunk
+   
+  Possible Impact:
+  All DSC and FDF files that reference these module should be updated to use the new module directory
+  and file names.

EdkCompatibilityPkg/EdkCompatibilityPkg.dsc

@@ -224,6 +224,17 @@ define GCC_MACRO                 = -DEFI_SPECIFICATION_VERSION=0x00020000 -DPI_S
   EdkCompatibilityPkg/Compatibility/Uc2OnUcThunk/Uc2OnUcThunk.inf
   EdkCompatibilityPkg/Compatibility/UcOnUc2Thunk/UcOnUc2Thunk.inf
 
+  #
+  # User needs to turn on the compatibility switches for VFRC and EDK II build tool for Framework HII modules 
+  # following the example shown below: 
+  #
+  #  $SomePackage/FrameworkHiiModule/FrameworkHiiModule.inf {
+  #    <BuildOptions>
+  #    *_*_*_VFR_FLAGS = -c # for VFR files in the module
+  #    *_*_*_BUILD_FLAGS = -c # for UNI files in the module
+  # }
+
+
 [Components.IA32,Components.X64,Components.IPF]
   EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
   EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeiLib_Edk2.inf