Remove MethodDesc::GetSig
#109211
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Remove MethodDesc::GetSig
#109211
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This API is inherently unsafe because it doesn't provide a length. All uses are replaced with MethodDesc::GetSigPointer or MethodDesc::GetSigParser.
AaronRobinsonMSFT
requested review from
jkotas,
davidwrighton and
elinor-fung
AaronRobinsonMSFT
changed the title
MethodDesc::GetSig.MethodDesc::GetSig
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Tagging subscribers to this area: @mangod9 |
jkotas
approved these changes
Oct 25, 2024
am11
reviewed
Oct 25, 2024
| MetaSig sig(pMD); | ||
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| BYTE callConv = sig.GetCallingConventionInfo(); | ||
| if (callConv != (IMAGE_CEE_CS_CALLCONV_HASTHIS | IMAGE_CEE_CS_CALLCONV_DEFAULT)) | ||
| COMPlusThrow(kInvalidProgramException); |
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Just curious, does this use HMF or is it already on the asm helper plan under the hood?
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It doesn't use HMF since this must be called when an actual transition is performed - a QCall. The QCall erects a normal transition frame to unmanaged. Note that SuppressGCTransition on a QCall makes this call invalid. The COMPlusThrow APIs hook into the normal .NET exception mechanism here. I'm not the expert in this domain so if you need more details @jkotas or @janvorli are best to comment on how it aligns with the referenced approach/comment.
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This API is inherently unsafe because it doesn't provide a length. All uses are replaced with
MethodDesc::GetSigPointerorMethodDesc::GetSigParser. Both of which ensure bounds are respected during any parsing.