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Asset loads fail #15

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itowlson opened this issue Aug 14, 2022 · 2 comments · Fixed by #16
Closed

Asset loads fail #15

itowlson opened this issue Aug 14, 2022 · 2 comments · Fixed by #16

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@itowlson
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The file open calls fail because WASI sets up preopened directory mounts as part of the C runtime library load during main, and we bypass that.

According to WebAssembly/wasi-sdk#110, we should be able to pass -mexec-model=reactor to the C compiler (somewhere), though I'm not sure how this will interact if the underlying SDK compiles a main entry point.
@itowlson
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The Clang args are set in the .NET WASI SDK build/Wasi.Sdk.targets. Not sure whether we can interact with those from a consumer.

@itowlson
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Huh, apparently we can explicitly call __wasm_call_ctors from ensure_preinitialized and it works. YES I AM SLIGHTLY TERRIFIED BY THIS. Would be good to understand whether and how we can implement a more tool-supported approach.

@itowlson itowlson mentioned this issue Aug 15, 2022
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Fix asset load error itowlson/old-spin-dotnet-sdk
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@itowlson