Stream: git-wasmtime

Topic: wasmtime / PR #11383 Build C API release artifacts with u...

Wasmtime GitHub notifications bot (Aug 05 2025 at 16:17):

alexcrichton opened PR #11383 from alexcrichton:force-unwind-tables to bytecodealliance:main:

In #11344 it was found that if Wasmtime had a frame on the stack then an application's previous unwinding was broken. This was due to the fact that Wasmtime's C API artifacts do not have unwind information built-in due to being build with -Cpanic=abort. This change updates to building the C API artifacts with -Cforce-unwind-tables even though Rust itself won't use them to assist with embedders that want to unwind. These should in theory be easily strippable if desired and additionally embedders always have the option to build their own version of the C API too.

Closes #11344

<!--
Please make sure you include the following information:

• If this work has been discussed elsewhere, please include a link to that
  conversation. If it was discussed in an issue, just mention "issue #...".

• Explain why this change is needed. If the details are in an issue already,
  this can be brief.

Our development process is documented in the Wasmtime book:
https://docs.wasmtime.dev/contributing-development-process.html

Please ensure all communication follows the code of conduct:
https://github.com/bytecodealliance/wasmtime/blob/main/CODE_OF_CONDUCT.md
-->

Wasmtime GitHub notifications bot (Aug 05 2025 at 16:17):

alexcrichton requested wasmtime-default-reviewers for a review on PR #11383.

Wasmtime GitHub notifications bot (Aug 05 2025 at 16:17):

alexcrichton requested rvolosatovs for a review on PR #11383.

Wasmtime GitHub notifications bot (Aug 06 2025 at 18:57):

fitzgen submitted PR review.

Wasmtime GitHub notifications bot (Aug 06 2025 at 19:03):

bjorn3 commented on PR #11383:

By the way https://github.com/rust-lang/rust/pull/143613 will make -Cforce-unwind-tables the default on Linux. It was already force enabled on Windows. macOS would still need -Cforce-unwind-tables though.

Wasmtime GitHub notifications bot (Aug 06 2025 at 19:21):

fitzgen merged PR #11383.

Wasmtime GitHub notifications bot (Aug 06 2025 at 21:01):

alexcrichton commented on PR #11383:

Oh nice I wasn't aware of that!

Last updated: Dec 06 2025 at 06:05 UTC