回复: [Patch V2 0/7] Reproduce builds across source format changes

["gaoliming" <gaoliming@byosoft.com.cn>]

Mike：
  Seemly, this change is for debug image build reproduce. But, if the fixed
value is used, they are not correct for the debug image. If so, can RELEASE
image be used for the binary comparison?

Thanks
Liming
> -----邮件原件-----
> 发件人: Michael D Kinney <michael.d.kinney@intel.com>
> 发送时间: 2021年11月2日 5:38
> 收件人: devel@edk2.groups.io
> 抄送: Ard Biesheuvel <ardb+tianocore@kernel.org>; Jiewen Yao
> <jiewen.yao@intel.com>; Jordan Justen <jordan.l.justen@intel.com>; Gerd
> Hoffmann <kraxel@redhat.com>; Michael Kubacki
> <michael.kubacki@microsoft.com>; Jian J Wang <jian.j.wang@intel.com>;
> Maciej Rabeda <maciej.rabeda@linux.intel.com>; Jiaxin Wu
> <jiaxin.wu@intel.com>; Siyuan Fu <siyuan.fu@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Leif Lindholm <leif@nuviainc.com>; Zhiguang
> Liu <zhiguang.liu@intel.com>
> 主题: [Patch V2 0/7] Reproduce builds across source format changes
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3688
> 
> New in V2
> ------------
> * Split MdePkg DebugLib class enhancements out into its own commit
> * Address ECC failures
> * Align macro continuation marks in same column
> 
> This change is required to help verify that source code formatting
> changes such as the use of uncrustify and line ending corrections
> do not have any functional differences.  Source format changes may
> add or remove line endings that change the source file line numbers
> of C statements or may change the use of spaces in C expressions
> used in an ASSERT() statements.  These types of changes can impact
> the generated binaries when DEBUG() and ASSERT() macros are
> enabled.  The following set of changes adds 2 defines that can be used
> to override the use of `__LINE__` in DEBUG() macros and the use of
> #Expression in ASSERT() macros.
> 
> * Add DEBUG_LINE_NUMBER define to DebugLib.h that is
>   by default mapped to `__LINE__`.  A build can pre-define
>   DEBUG_LINE_NUMBER to use a fixed value.
> * Add DEBUG_EXPRESSION_STRING(Expression) macros to
>   DebugLib.h that is by default mapped to #Expression.
>   A build can define DEBUG_EXPRESSION_STRING_VALUE to
>   set all expression strings to a fixed string value.
> * Use DEBUG_LINE_NUMBER instead of `__LINE__`.
> * Use DEBUG_EXPRESSION_STRING instead of #Expression.
> 
> Submodules that use `__LINE__` are not updated.  These do not
> currently impact build reproducibility unless the debug features
> of those submodules are enabled.
> 
> The one exception is the UnitTestFrameworkPkg cmocka submodule
> that uses `__LINE__`.  This means that the binaries generated by host
> based unit tests that use cmocka features may not be identical across
> a source format change.
> 
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Michael Kubacki <michael.kubacki@microsoft.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Maciej Rabeda <maciej.rabeda@linux.intel.com>
> Cc: Jiaxin Wu <jiaxin.wu@intel.com>
> Cc: Siyuan Fu <siyuan.fu@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Leif Lindholm <leif@nuviainc.com>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
> 
> Michael D Kinney (7):
>   MdePkg/Include: Enhance DebugLib to support reproduce builds
>   MdePkg: Reproduce builds across source format changes
>   ArmPkg: Reproduce builds across source format changes
>   MdeModulePkg: Reproduce builds across source format changes
>   NetworkPkg: Reproduce builds across source format changes
>   SecurityPkg: Reproduce builds across source format changes
>   OvmfPkg: Reproduce builds across source format changes
> 
>  .../ProcessorSubClassDxe/ProcessorSubClass.c  |  2 +-
>  .../Type00/MiscBiosVendorFunction.c           |  2 +-
>  .../Type01/MiscSystemManufacturerFunction.c   |  2 +-
>  .../MiscBaseBoardManufacturerFunction.c       |  2 +-
>  .../Type03/MiscChassisManufacturerFunction.c  |  2 +-
>  ...MiscNumberOfInstallableLanguagesFunction.c |  2 +-
>  .../Type32/MiscBootInformationFunction.c      |  2 +-
>  .../Bus/Pci/PciHostBridgeDxe/PciHostBridge.c  |  2 +-
>  .../UefiBootManagerLib/BmDriverHealth.c       |  2 +-
>  MdePkg/Include/Library/DebugLib.h             | 43
> +++++++++++++++--
>  MdePkg/Include/Library/UnitTestLib.h          | 46 +++++++++----------
>  MdePkg/Library/BaseLib/SafeString.c           |  2 +-
>  NetworkPkg/Include/Library/NetLib.h           |  8 ++--
>  NetworkPkg/Library/DxeNetLib/DxeNetLib.c      |  2 +-
>  OvmfPkg/Csm/LegacyBiosDxe/LegacyPci.c         |  6 +--
>  .../PlatformBootManagerLib/BdsPlatform.c      |  4 +-
>  .../PlatformBootManagerLibBhyve/BdsPlatform.c |  2 +-
>  .../PlatformBootManagerLibGrub/BdsPlatform.c  |  4 +-
>  .../Include/Library/TcgStorageCoreLib.h       | 26 +++++------
>  19 files changed, 98 insertions(+), 63 deletions(-)
> 
> --
> 2.32.0.windows.1