Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: 1e7a83cbb6f26f02f743c06aeafee164a3ec59bf
https://github.com/tianocore/edk2/commit/1e7a83cbb6f26f02f743c06aeafee164a3ec59bf
Author: Phil Noh <[email protected]>
Date: 2025-10-16 (Thu, 16 Oct 2025)
Changed paths:
M BaseTools/Source/Python/FMMT/core/BinaryFactoryProduct.py
Log Message:
-----------
BaseTools/FMMT: Fix errors when operating the FV with CRC32 section
Currently the FMMT tool supports CRC32 GUID section (Ref. GuidTools.py).
But it is found that there are errors for the FV with CRC32 section.
For example, the errors are checked on the following commands.
--v : Show FV information except for the FV
--a : Show "Target Fv not found!!!" when adding an FFS file to the FV
--d : Show "Target Ffs not found!!!" when deleting an FFS file in the FV
They are caused by the mismatch for CRC32 section data between the FMMT
and GenCrc32 tools. The FMMT tool returns CRC32 section data without CRC
checksum field (4 bytes). The GenCrc32 tool (with -d option, verify CRC32
value for the input file) requires CRC32 section data including CRC
checksum field (4 bytes).
Fix the issue through adjusting the section data to include CRC checksum
field. Currently DataOffset field for CRC32 GUID section is reported as
0x1C differently (GUID Section header length: 0x18 + Checksum field: 0x4).
Instead of DataOffset field that includes CRC checksum field, configure
the section data based on the offset from section header length (0x18)
that was previously calculated. This update enables GUID sections to use
the same offset consistently.
Signed-off-by: Phil Noh <[email protected]>
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