Stream: git-wasmtime

Topic: wasmtime / Issue #1641 Support Emscripten

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 09:18):

redradist opened Issue #1641:

Feature

It would be nice if wasmtime add support applications that compiled with _Emscripten Toolchain_

Benefit

It would be possible to run application compiled with _Emscripten_

Alternatives

There are other run-time that support _WASI_, but it also supports _Emscripten_ !!

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 09:18):

redradist edited Issue #1641:

Feature

It would be nice if wasmtime add support applications that compiled with _Emscripten Toolchain_

Benefit

It would be possible to run application compiled with _Emscripten_

Alternatives

There are other run-time that support _WASI_, but it also supports _Emscripten_ like https://github.com/wasmerio/wasmer

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 13:49):

tschneidereit commented on Issue #1641:

We explicitly decided not to support the Emscripten ABI in Wasmtime. The WASI announcement post contains an explanation of the important differences, and in particular the safety guarantees that WASI runtimes can make.

The most important reason for not also supporting the Emscripten ABI is that as soon as a runtime also supports an ABI that doesn't make those guarantees, you can no longer trust any content executed by that runtime in the same way.

I'll close this issue, and hope this explanation makes sense!

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 13:49):

tschneidereit closed Issue #1641:

Feature

It would be nice if wasmtime add support applications that compiled with _Emscripten Toolchain_

Benefit

It would be possible to run application compiled with _Emscripten_

Alternatives

There are other run-time that support _WASI_, but it also supports _Emscripten_ like https://github.com/wasmerio/wasmer

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 14:38):

redradist commented on Issue #1641:

@tschneidereit It would be possible to add ability to run Emscripten Application only if user run with special flag:

wasmtime app.wasm --emscripten

And by default application works safely ...

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 14:39):

redradist edited a comment on Issue #1641:

@tschneidereit It would be possible to add ability to run Emscripten Application only if user run with special flag:

wasmtime --emscripten app.wasm

And by default application works safely ...

view this post on Zulip Wasmtime GitHub notifications bot (May 01 2020 at 15:39):

tschneidereit commented on Issue #1641:

That'd be a theoretical option, but a) it'd amount to a global switch making everything insecure, which we don't think is a good idea, and b) the ABI has other issues, as described in the post I linked to, so it's not just the security issue that made us decide not to support it.

Last updated: Dec 23 2024 at 12:05 UTC