BaseTools: FMMT replace output file is not generated successfully

For replace function, when target Ffs and new ffs are with
same size, the output file can not be generated successfully.
This patch fixes this issue.

Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Yuwei Chen <yuwei.chen@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>

1 files changed, 16 insertions, 3 deletions

diff --git a/BaseTools/Source/Python/FMMT/core/FvHandler.py b/BaseTools/Source/Python/FMMT/core/FvHandler.py
index 058b29321f..c7aca95bf2 100644
--- a/BaseTools/Source/Python/FMMT/core/FvHandler.py
+++ b/BaseTools/Source/Python/FMMT/core/FvHandler.py
@@ -387,7 +387,21 @@ class FvHandler:
         if self.NewFfs.Data.Size >= self.TargetFfs.Data.Size:

             Needed_Space = self.NewFfs.Data.Size + len(self.NewFfs.Data.PadData) - self.TargetFfs.Data.Size - len(self.TargetFfs.Data.PadData)

             # If TargetFv have enough free space, just move part of the free space to NewFfs.

-            if TargetFv.Data.Free_Space >= Needed_Space:

+            if Needed_Space == 0:

+                Target_index = TargetFv.Child.index(self.TargetFfs)

+                TargetFv.Child.remove(self.TargetFfs)

+                TargetFv.insertChild(self.NewFfs, Target_index)

+                # Modify TargetFv Header and ExtHeader info.

+                TargetFv.Data.ModFvExt()

+                TargetFv.Data.ModFvSize()

+                TargetFv.Data.ModExtHeaderData()

+                ModifyFvExtData(TargetFv)

+                TargetFv.Data.ModCheckSum()

+                # Recompress from the Fv node to update all the related node data.

+                self.CompressData(TargetFv)

+                # return the Status

+                self.Status = True

+            elif TargetFv.Data.Free_Space >= Needed_Space:

                 # Modify TargetFv Child info and BiosTree.

                 TargetFv.Child[-1].Data.Data = b'\xff' * (TargetFv.Data.Free_Space - Needed_Space)

                 TargetFv.Data.Free_Space -= Needed_Space

@@ -450,7 +464,6 @@ class FvHandler:
                 Target_index = TargetFv.Child.index(self.TargetFfs)

                 TargetFv.Child.remove(self.TargetFfs)

                 TargetFv.insertChild(self.NewFfs, Target_index)

-                self.Status = True

             # If TargetFv do not have free space, create free space for Fv.

             else:

                 New_Free_Space_Tree = BIOSTREE('FREE_SPACE')

@@ -461,7 +474,6 @@ class FvHandler:
                 Target_index = TargetFv.Child.index(self.TargetFfs)

                 TargetFv.Child.remove(self.TargetFfs)

                 TargetFv.insertChild(self.NewFfs, Target_index)

-                self.Status = True

             # Modify TargetFv Header and ExtHeader info.

             TargetFv.Data.ModFvExt()

             TargetFv.Data.ModFvSize()

@@ -470,6 +482,7 @@ class FvHandler:
             TargetFv.Data.ModCheckSum()

             # Recompress from the Fv node to update all the related node data.

             self.CompressData(TargetFv)

+            self.Status = True

         logger.debug('Done!')

         return self.Status