[Serialization] Restrict loading swiftmodule files to the SDK that built them #37768
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@swift-ci Please smoke test |
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@swift-ci Please test Apple Silicon |
bnbarham
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Serialize the canonical name of the SDK used when building a swiftmodule file and use it to ensure that the swiftmodule file is loaded only with the same SDK. The SDK name must be passed down from the frontend. This will report unsupported configurations like: - Installing roots between incompatible SDKs without deleting the swiftmodule files. - Having multiple targets in the same project using different SDKs. - Loading a swiftmodule created with a newer SDK (and stdlib) with an older SDK. All of these lead to hard to investigate deserialization failures and this change should detect them early, before reaching a deserialization failure. rdar://78048939
Tests using a mock SDK can't load the stdlib of the normal SDK (or the just-built one) with the recent changes. Use `-parse-stdlib` in those tests to prevent loading the stdlib implicitly.
…t SDK The API digester forces loading the stdlib which may pick up an stdlib from a different SDK than the one being tested. Disable the check enforcing loading only swiftmodules built for the same SDK.
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The logic to get the SDK name in the frontend wasn't reliable. Trying a different approach where the driver passes the name down instead. @swift-ci Please smoke test |
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@swift-ci Please smoke test macOS |
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Serialize the SDK canonical name used to build swiftmodule files and use it at deserialization to ensure that a swiftmodule file is loaded only with the same SDK used to build it.
This will report unsupported configurations like:
All of these configurations lead to hard to investigate deserialization failures and should be reported early by this new check, before reaching a deserialization failure.
rdar://78048939