X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;ds=sidebyside;f=BaseTools%2FSource%2FPython%2FGenFds%2FFv.py;h=6190bceba88d439a2969f679a71a15363710541a;hb=fe35c036354c4b6bf18c4699a45156f3965fae2a;hp=a9ff26e597eda6ea4bffc4f4d4a698fddc5d1b9a;hpb=b303ea726e1c8ed240dad2bce54821318567eab3;p=mirror_edk2.git

diff --git a/BaseTools/Source/Python/GenFds/Fv.py b/BaseTools/Source/Python/GenFds/Fv.py
index a9ff26e597..6190bceba8 100644
--- a/BaseTools/Source/Python/GenFds/Fv.py
+++ b/BaseTools/Source/Python/GenFds/Fv.py
@@ -278,9 +278,13 @@ class FV (FvClassObject):
             #
             if TotalSize > 0:
                 FvExtHeaderFileName = os.path.join(GenFdsGlobalVariable.FvDir, self.UiFvName + '.ext')
-                FvExtHeaderFile = open (FvExtHeaderFileName,'wb')
+                FvExtHeaderFile = StringIO.StringIO()
                 FvExtHeaderFile.write(Buffer)
+                Changed = SaveFileOnChange(FvExtHeaderFileName, FvExtHeaderFile.getvalue(), True)
                 FvExtHeaderFile.close()
+                if Changed:
+                  if os.path.exists (self.InfFileName):
+                    os.remove (self.InfFileName)
                 self.FvInfFile.writelines("EFI_FV_EXT_HEADER_FILE_NAME = "      + \
                                            FvExtHeaderFileName                  + \
                                            T_CHAR_LF)