On Thu, Nov 30, 2023 at 2:46 AM Pedro Falcato via groups.io
<pedro.falcato=gmail....@groups.io> wrote:
>
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4609
>
> CalculateCrc16Ansi is currently miscalculating all checksums and causing
> ext4 mount failures on older (~13 year old) filesystems.
>
> This patchset:
> 1) Fixes CalculateCrc16Ansi to properly calculate checksums
>    This is a breaking change.
> 2) Adds google test tests for BaseLib. They were immensely helpful in
>   making sure things were correct, while iterating quickly.
>
> Boot tested on a freshly baked "old filesystem" using a script[1],
> and tested for further correctness using unit tests.
>
> [1] https://gist.github.com/heatd/6adaae8288e270897975d9321c5e8f41
>
> Pedro Falcato (2):
>   MdePkg/BaseLib: Fix CRC16-ANSI calculation
>   MdePkg/Test: Add google tests for BaseLib
>
>  MdePkg/Include/Library/BaseLib.h              |  5 ++
>  MdePkg/Library/BaseLib/CheckSum.c             |  4 +-
>  .../Library/BaseLib/GoogleTestBaseLib.inf     | 31 +++++++++
>  .../Library/BaseLib/TestBaseLibMain.cpp       | 23 +++++++
>  .../Library/BaseLib/TestCheckSum.cpp          | 64 +++++++++++++++++++
>  .../SafeIntLibUintnIntnUnitTests64.cpp        |  4 +-
>  MdePkg/Test/MdePkgHostTest.dsc                |  5 ++
>  7 files changed, 132 insertions(+), 4 deletions(-)
>  create mode 100644 
> MdePkg/Test/GoogleTest/Library/BaseLib/GoogleTestBaseLib.inf
>  create mode 100644 MdePkg/Test/GoogleTest/Library/BaseLib/TestBaseLibMain.cpp
>  create mode 100644 MdePkg/Test/GoogleTest/Library/BaseLib/TestCheckSum.cpp
>
> --
> 2.43.0

whoops, dropped some CC's here, adding...

-- 
Pedro


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