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benjamin-sieffert opened this issue Jul 20, 2023 · 1 comment
Open

emscripten failure to run with ASYNCIFY=2 #113882

benjamin-sieffert opened this issue Jul 20, 2023 · 1 comment
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C-bug Category: This is a bug. O-emscripten Target: 50% off wasm32-unknown-musl. the savings come out of stdio.h, but hey, you get SDL! O-wasm Target: WASM (WebAssembly), http://webassembly.org/ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@benjamin-sieffert
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benjamin-sieffert commented Jul 20, 2023 •
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Due to the issues described in #113852 , I wanted to try the new ASYNCIFY=2 option of emscripten.
https://github.com/benjamin-sieffert/emscripten-sleep-bug/tree/bi
The branch compiles OK but produces the following error in the browser:

Uncaught TypeError: Cannot read properties of undefined (reading '0')
    at sigToWasmTypes (sdl_emscripten_template.js:1:67512)
    at sdl_emscripten_template.js:1:68357
    at Object.instrumentWasmImports (sdl_emscripten_template.js:1:68498)
    at sdl_emscripten_template.js:1:71488

Tested against emscripten-releases@00c70008e4b87ac4eba15bf2ab3ef2a1d44fa334 with both rustc 1.73.0-nightly (39f42ad9e 2023-07-19) + build-std and rustc 1.71.0 (8ede3aae2 2023-07-12) yielding the same outcome.

When using the emcc directly to compile and bundle C code with ASYNCIFY=2, it works fine.
@rustbot rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Jul 20, 2023
@Jules-Bertholet
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@rustbot label O-wasm

@rustbot rustbot added the O-wasm Target: WASM (WebAssembly), http://webassembly.org/ label Jul 22, 2023
@Noratrieb Noratrieb added T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. C-bug Category: This is a bug. and removed needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Jul 29, 2023
@workingjubilee workingjubilee added the O-emscripten Target: 50% off wasm32-unknown-musl. the savings come out of stdio.h, but hey, you get SDL! label Oct 11, 2024
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C-bug Category: This is a bug. O-emscripten Target: 50% off wasm32-unknown-musl. the savings come out of stdio.h, but hey, you get SDL! O-wasm Target: WASM (WebAssembly), http://webassembly.org/ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@workingjubilee @rustbot @Noratrieb @Jules-Bertholet @benjamin-sieffert