Cranelift: rework isle-in-source-tree functionality. #9633
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Per bytecodealliance#9625 and bytecodealliance#9588, a downstream user of Cranelift was misusing the `isle-in-source-tree` feature, enabling it indiscriminately even in published crates (wasmerio/wasmer#5202). This went against the intent of the feature, to be a way for local developers to observe the generated source. As such, it ran afoul of some safety checks for that purpose, and also polluted users' Cargo caches in a way that we cannot now fix except in future releases. The best we can do is probably to take away features that are liable to be misused. Following discussion in today's Cranelift weekly meeting, we decided to provide this functionality under an environment variable instead. This allows folks who know what they're doing to get the same behavior, but does not expose a feature to crate users. Fixes bytecodealliance#9625.
alexcrichton
approved these changes
Nov 20, 2024
github-merge-queue
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removed this pull request from the merge queue due to failed status checks
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I think the merge queue run raced with the release; cargo-vet failed because it found a version on crates.io it didn't expect. Re-running, but noting in case we see it again later -- interesting corner case! |
github-merge-queue
bot
removed this pull request from the merge queue due to failed status checks
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Ah I don't think this is spurious but should be fixed at #9635 |
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Per #9625 and #9588, a downstream user of Cranelift was misusing the
isle-in-source-treefeature, enabling it indiscriminately even in published crates (wasmerio/wasmer#5202). This went against the intent of the feature, to be a way for local developers to observe the generated source. As such, it ran afoul of some safety checks for that purpose, and also polluted users' Cargo caches in a way that we cannot now fix except in future releases.The best we can do is probably to take away features that are liable to be misused. Following discussion in today's Cranelift weekly meeting, we decided to provide this functionality under an environment variable instead. This allows folks who know what they're doing to get the same behavior, but does not expose a feature to crate users.
Fixes #9625.