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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2022-12-08 12:57:30 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-08 12:57:30 +0100 |
| commit | 4d5a2f3d81ed3d36bef505258149bcee1be1394b (patch) | |
| tree | 2b5bf8f038f3c8a0c970224ceca9e2da76ba4e59 /compiler/rustc_mir_transform/src/coverage/graph.rs | |
| parent | f1f7560598f2543ecc33bd4c1c013a4e76d8f50c (diff) | |
| parent | 3a07aa9b5e9612a0b4fd0852763c34e1f244794b (diff) | |
| download | rust-4d5a2f3d81ed3d36bef505258149bcee1be1394b.tar.gz rust-4d5a2f3d81ed3d36bef505258149bcee1be1394b.zip | |
Rollup merge of #105405 - sunfishcode:sunfishcode/export-dynamic, r=TaKO8Ki
Stop passing -export-dynamic to wasm-ld. -export-dynamic was a temporary hack added in the early days of the Rust wasm32 target when Rust didn't have a way to specify wasm exports in the source code. This flag causes all global symbols, and some compiler-internal symbols, to be exported, which is often more than needed. Rust now does have a way to specify exports in the source code: `#[export_name = "..."]`. So as the original comment suggests, -export-dynamic can now be removed, allowing users to have smaller binaries and better encapsulation in their wasm32-unknown-unknown modules. It's possible that this change will require existing wasm32-unknown-unknown users will to add explicit `#[export_name = "..."]` directives to exporrt the symbols that their programs depend on having exported.
Diffstat (limited to 'compiler/rustc_mir_transform/src/coverage/graph.rs')
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