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{aarch64,x86_64}-*-windows-gnullvm: build host tools #140772

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@mati865 mati865 commented May 7, 2025

This will require MCP, but I suppose we need to know how long it takes to build first.

I opted for bootstrapping from Linux because that's the easiest host system to work with, but once this hits beta, having dedicated Windows runners would be sensible and probably preferable.

--enable-full-tools for whatever reason doesn't seem to work when cross-compiling, because LLVM tools for the new hosts are not copied into the expected directory. And WiX that bootstrap relies upon to create .msi installers only supports Windows. I haven't tried, but it might be usable via Wine.

Almost every commit is self-contained, so let me know if I should split them into separate PRs.

try-job: dist-windows-gnullvm

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rustbot commented May 7, 2025

r? @marcoieni

rustbot has assigned @marcoieni.
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@rustbot rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. labels May 7, 2025
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rustbot commented May 7, 2025

This PR changes how LLVM is built. Consider updating src/bootstrap/download-ci-llvm-stamp.

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mati865 commented May 11, 2025

Forgot to include try-job. Fixed it.

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A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue.
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