Sync EDKII BaseTools to BaseTools project r1911.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10177 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/Python/build/build.py

@@ -738,6 +738,16 @@ class Build():
         # parse target.txt, tools_def.txt, and platform file
         #self.RestoreBuildData()
         self.LoadConfiguration()
+        
+        #
+        # @attention Treat $(TARGET) in meta data files as special macro when it has only one build target.
+        # This is not a complete support for $(TARGET) macro as it can only support one build target in ONE
+        # invocation of build command. However, it should cover the frequent usage model that $(TARGET) macro
+        # is used in DSC files to specify different libraries & PCD setting for debug/release build.
+        #
+        if len(self.BuildTargetList) == 1:
+            self.Db._GlobalMacros.setdefault("TARGET", self.BuildTargetList[0])
+        
         self.InitBuild()
 
         # print current build environment and configuration
@@ -1336,7 +1346,6 @@ class Build():
                         self.FvList,
                         self.SkuId
                         )
-                self.BuildReport.AddPlatformReport(Wa)
                 Wa.CreateMakeFile(False)
                 self.Progress.Stop("done!")
                 MaList = []
@@ -1345,6 +1354,8 @@ class Build():
                     if Ma == None: continue
                     MaList.append(Ma)
                     self._Build(self.Target, Ma)
+
+                self.BuildReport.AddPlatformReport(Wa, MaList)
                 if MaList == []:
                     EdkLogger.error(
                                 'build',