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Merged
merged 1 commit into from
Jul 23, 2025
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CI: add windows-arm runner #4479

merged 1 commit into from
Jul 23, 2025
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RalfJung
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rustbot commented Jul 19, 2025

Thank you for contributing to Miri!
Please remember to not force-push to the PR branch except when you need to rebase due to a conflict or when the reviewer asks you for it.

@rustbot rustbot added the S-waiting-on-review Status: Waiting for a review to complete label Jul 19, 2025
@RalfJung RalfJung force-pushed the ci-win-arm branch 3 times, most recently from 7d7e6b5 to 8835d26 Compare July 19, 2025 08:01
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This doesn't work yet, rustup-toolchain-install-master currently cannot be built on windows-arm since it depends on winapi:

rustup-toolchain-install-master v1.8.1 (/home/r/src/rust/rustup-toolchain-install-master)
├── ansi_term v0.12.1
│   └── winapi v0.3.9
...
├── pbr v1.1.1
│   ├── crossbeam-channel v0.5.15
│   │   └── crossbeam-utils v0.8.21
│   ├── libc v0.2.174
│   └── winapi v0.3.9 (*)

Cc @kennytm
Might be relevant for rust-lang/rfcs#3817

@RalfJung RalfJung marked this pull request as draft July 19, 2025 08:05
@rustbot rustbot added S-waiting-on-author Status: Waiting for the PR author to address review comments and removed S-waiting-on-review Status: Waiting for a review to complete labels Jul 19, 2025
@RalfJung RalfJung added S-blocked Status: blocked on something happening somewhere else and removed S-waiting-on-author Status: Waiting for the PR author to address review comments labels Jul 19, 2025
This was referenced Jul 19, 2025
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@kennytm judging from a8m/pb#123 it seems like actually kennytm/rustup-toolchain-install-master#61 is enough to fix this... any chance you could cut a release?

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kennytm commented Jul 21, 2025

@RalfJung published 1.9.0.

@RalfJung RalfJung force-pushed the ci-win-arm branch 2 times, most recently from c4bfacb to ec6e486 Compare July 22, 2025 21:13
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Okay, that seems to work. :) But it is super slow.

RalfJung
RalfJung commented Jul 23, 2025
View reviewed changes
cargo-miri/src/phases.rs
// there would be a collision with other invocations of cargo-miri (as rustdoc or as runner). We
// explicitly do this even if RUSTC_STAGE is set, since for these builds we do *not* want the
// bootstrap `rustc` thing in our way! Instead, we have MIRI_HOST_SYSROOT to use for host
// builds.
cmd.env("RUSTC", fs::canonicalize(find_miri()).unwrap());
cmd.env("RUSTC", path::absolute(find_miri()).unwrap());
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@RalfJung RalfJung Jul 23, 2025 •
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There seems to be some behavior difference between x86-win32 and arm-win64 somewhere which lead to things breaking if we use canonicalize here. 🤷

@RalfJung RalfJung marked this pull request as ready for review July 23, 2025 08:16
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rustbot commented Jul 23, 2025

Thank you for contributing to Miri!
Please remember to not force-push to the PR branch except when you need to rebase due to a conflict or when the reviewer asks you for it.

@rustbot rustbot added the S-waiting-on-review Status: Waiting for a review to complete label Jul 23, 2025
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After disabling GC_STRESS, the runtime is reasonable. So, the runner seems to be pretty slow, but that's a problem with all Windows runners.

@RalfJung RalfJung added this pull request to the merge queue Jul 23, 2025
Merged via the queue into rust-lang:master with commit ae56827 Jul 23, 2025
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@RalfJung RalfJung deleted the ci-win-arm branch July 23, 2025 08:44
@rustbot rustbot removed the S-waiting-on-review Status: Waiting for a review to complete label Jul 23, 2025
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