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[mono] ILStrip sorts custom attribute table - #87923
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akoeplinger
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Jun 22, 2023
| } | ||
| } | ||
| void SortCustomAttributes() |
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can you please add a comment about why we need to sort the custom attributes here?
steveisok
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Jun 22, 2023
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/backport to release/7.0-staging |
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Started backporting to release/7.0-staging: https://github.com/dotnet/runtime/actions/runs/5349160200 |
This was referenced Jun 28, 2023
| { | ||
| CustomAttributeRow row_left = (CustomAttributeRow)left; | ||
| CustomAttributeRow row_right = (CustomAttributeRow)right; | ||
| return row_left.Parent.RID.CompareTo(row_right.Parent.RID); |
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This is subtly wrong. the problem is that RID on a cecil metadata token masks out the token type.
We actually have to reconstruct the custom attribute coded-index.
something like:
varleftParentCodedIdx=Utilities.CompressMetadataToken(CodedIndex.HasCustomAttribute,row_left.Parent);varrightParentCodedIdx=Utilities.CompressMetadataToken(CodedIndex.HasCustomAttribute,row_right.Parent);returnleftParentCodedIdx.CompareTo(rightParentCodedIdx);akoeplinger added a commit
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Jul 5, 2023
The change in dotnet#87923 was subtly wrong, the problem is that RID on a Cecil metadata token masks out the token type. We actually have to reconstruct the custom attribute coded-index.
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The change in #87923 was subtly wrong, the problem is that RID on a Cecil metadata token masks out the token type. We actually have to reconstruct the custom attribute coded-index.
lewing pushed a commit
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Jul 5, 2023
The change in #87923 was subtly wrong, the problem is that RID on a Cecil metadata token masks out the token type. We actually have to reconstruct the custom attribute coded-index.
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This prevents custom attribute table corruption by sorting it as the last step when stripping an assembly. Addresses #85414.
The PR will have to be backported to net7.0.