Stream: git-wasmtime

Topic: wasmtime / PR #8668 Add release binaries for x86_64-musl


view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:26):

alexcrichton opened PR #8668 from alexcrichton:musl-binaries to bytecodealliance:main:

This was requested in bytecodealliance/wasmtime-py#237 and shouldn't cost us too much in terms of CI resources and maintenance overhead.

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view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:26):

alexcrichton requested elliottt for a review on PR #8668.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:26):

alexcrichton requested wasmtime-core-reviewers for a review on PR #8668.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:26):

alexcrichton requested wasmtime-default-reviewers for a review on PR #8668.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:29):

elliottt submitted PR review.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:44):

alexcrichton updated PR #8668.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:44):

alexcrichton has enabled auto merge for PR #8668.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 00:59):

whitequark commented on PR #8668:

Thanks again =^__^=

This will improve the compatibility story for YoWASP and the Glasgow Interface Explorer to even more Linux distributions.

view this post on Zulip Wasmtime GitHub notifications bot (May 21 2024 at 01:12):

alexcrichton merged PR #8668.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 03 2024 at 18:12):

aambrose-sonatus commented on PR #8668:

Hi @alexcrichton, I'm curious about a couple things here regarding musl support:

  1. What is the wasmtime dependency on libgcc? Is this something core, or just how the toolchain is structured right now?
  2. What is the limitation that is preventing wasmtime from being fully static with musl libraries? Is it the above libgcc dep?

Thank you

view this post on Zulip Wasmtime GitHub notifications bot (Jul 03 2024 at 18:28):

bjorn3 commented on PR #8668:

For usage in C we compile a wasmtime.so. Producing a dynamic library is incompatible with statically linking libc. The musl based binaries also seem to be meant for usage on musl based distros where statically linking libc only has disadvantages. (bigger binaries, not getting security updates to libc)

view this post on Zulip Wasmtime GitHub notifications bot (Jul 03 2024 at 18:28):

bjorn3 edited a comment on PR #8668:

For usage in C we compile a wasmtime.so dynamic library. Producing a dynamic library is incompatible with statically linking libc. The musl based binaries also seem to be meant for usage on musl based distros where statically linking libc only has disadvantages. (bigger binaries, not getting security updates to libc)

view this post on Zulip Wasmtime GitHub notifications bot (Jul 03 2024 at 22:53):

aambrose-sonatus commented on PR #8668:

Is there anything that precludes compiling the static library version of the embedding (IE libwasmtime.a) as fully static? Perhaps not as an official release artifact, but e.g. when compiling from source oneself or when using wasmtime as a crate dependency for some other binary?

view this post on Zulip Wasmtime GitHub notifications bot (Jul 04 2024 at 06:49):

bjorn3 commented on PR #8668:

If you compile it yourself, I don't see why it shouldn't work.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 08 2024 at 13:34):

alexcrichton commented on PR #8668:

I think that the libwasmtime.a artifact for x86_64-musl should be usable to build a static binary, but I haven't tested that myself. Otherwise though our distribution doesn't have any static binaries for Linux mostly just because no one's asked for it and it's otherwise easier to keep everything built similarly (and all other platforms use dynamic linking)

@bjorn3 is right though in that when building yourself you should have any option you need available to you for target/static linking/etc.

view this post on Zulip Wasmtime GitHub notifications bot (Jul 09 2024 at 00:39):

aambrose-sonatus commented on PR #8668:

Yeah it seemed to be working on my end; I used zig as the C toolchain so I get full static outputs by default. My questions were more regarding the statement they are not suitable for "run on any linux distribution" style use cases and whether this applied to all source builds, or only the publicly released artifacts. It sounds like it's the latter.

Thank you both!


Last updated: Dec 23 2024 at 12:05 UTC