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Add change log for the incompatible changes in MdePkg in Edk r9817. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9818 6f19259b-4bc3-4df7-8a09-765794883524
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qhuang8 2010-01-26 05:16:13 +00:00
parent 4777d7fc9e
commit c3117889c4
1 changed files with 9 additions and 0 deletions
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9
MdePkg/ChangeLog.txt
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@ -326,3 +326,12 @@ Possible impacts:
This is a source level compatible change, but not binary level. We might need to rebuild some old binary modules to work with newer version of MdePkg.
EDK_9815: Non-Compatible: qhuang8
Scrub EFI_ATA_IDENTIFY_DATA and EFI_ATAPI_IDENTIFY_DATA to strict follow newest ATA spec (ATA-8). This is a build non-backward compatible changes for ATA-related modules.
The ATA5_IDENTIFY_DATA in MdePkg\IndustryStandards\Atapi.h is exactly the same as the original ATA_IDENTIFY_DATA for backward compatibility support to follow ATA-5 spec.
Possible impacts:
We can fix the build breaks for some renaming issues (e.g. Word 49 in EFI_ATA_IDENTIFY_DATA renamed from "capabilities" to "capabilities_49")
For the fields that are "obsolete" in newest ATA spec, we can use type-cast to older ATA spec structure (e.g. ATA5_IDENTIFY_DATA).
(There should not be any runtime issues if the build issues have got solved in the source correctly.)