redesign stage 0 std #119899
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redesign stage 0 std #119899
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This PR modifies If appropriate, please update |
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@rustbot ready r? bootstrap |
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@rustbot author (currently stage 2 std is copied from stage 1 and this behaviour should change with the beta std change) |
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Signed-off-by: onur-ozkan <[email protected]>
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@bors try |
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redesign stage 0 std ### Summary This PR changes how bootstrap builds the stage 1 compiler by switching to precompiled stage 0 standard library instead of building the in-tree one. The goal was to update bootstrap to use the beta standard library at stage 0 rather than compiling it from source (see the motivation at rust-lang/compiler-team#619). Previously, to build a stage 1 compiler bootstrap followed this path: ``` download stage0 compiler -> build in-tree std -> compile stage1 compiler with in-tree std ``` With this PR, the new path is: ``` download stage0 compiler -> compile stage1 compiler with precompiled stage0 std ``` This also means that `cfg(bootstrap)`/`cfg(not(bootstrap))` is no longer needed for library development. ### Building "library" Since stage0 `std` is no longer in-tree `x build/test/check library --stage 0` is now no-op. The minimum supported stage to build `std` is now 1. For the same reason, default stage values in the library profile is no longer 0. Because building the in-tree library now requires a stage1 compiler, I highly recommend library developers to enable `download-rustc` to speed up compilation time. <hr> If you encounter a bug or unexpected results please open a topic in the [#t-infra/bootstrap](https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap) Zulip channel or create a [bootstrap issue](https://github.com/rust-lang/rust/issues/new?template=bootstrap.md). (Review thread: https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap/topic/Review.20thread.3A.20stage.200.20redesign.20PR/with/508271433) ~~Blocked on rust-lang#122709 try-job: dist-x86_64-linux
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I strongly believe a0030fb will fix the filesystem issue (hopefully without introducing new bugs). I'll wait for the current try run to finish for testing it. |
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I'm not actually sure if we even need to specify |
I think it's cool to keep that option, and yeah, it wouldn't fix that problem. |
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The job Click to see the possible cause of the failure (guessed by this bot) |
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@bors try |
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⌛ Trying commit d6f178a with merge 424ee4431faa6f45caca8312cb7e92b94a294898... |
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redesign stage 0 std ### Summary This PR changes how bootstrap builds the stage 1 compiler by switching to precompiled stage 0 standard library instead of building the in-tree one. The goal was to update bootstrap to use the beta standard library at stage 0 rather than compiling it from source (see the motivation at rust-lang/compiler-team#619). Previously, to build a stage 1 compiler bootstrap followed this path: ``` download stage0 compiler -> build in-tree std -> compile stage1 compiler with in-tree std ``` With this PR, the new path is: ``` download stage0 compiler -> compile stage1 compiler with precompiled stage0 std ``` This also means that `cfg(bootstrap)`/`cfg(not(bootstrap))` is no longer needed for library development. ### Building "library" Since stage0 `std` is no longer in-tree `x build/test/check library --stage 0` is now no-op. The minimum supported stage to build `std` is now 1. For the same reason, default stage values in the library profile is no longer 0. Because building the in-tree library now requires a stage1 compiler, I highly recommend library developers to enable `download-rustc` to speed up compilation time. <hr> If you encounter a bug or unexpected results please open a topic in the [#t-infra/bootstrap](https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap) Zulip channel or create a [bootstrap issue](https://github.com/rust-lang/rust/issues/new?template=bootstrap.md). (Review thread: https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap/topic/Review.20thread.3A.20stage.200.20redesign.20PR/with/508271433) ~~Blocked on rust-lang#122709 try-job: dist-x86_64-linux
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☀️ Try build successful - checks-actions |
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It worked, nice :) @rustbot ready |
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std: make `cmath` functions safe The floating point intrinsics are more difficult, I'll probably wait until rust-lang#119899 has merged before making them safe as well.
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std: make `cmath` functions safe The floating point intrinsics are more difficult, I'll probably wait until rust-lang#119899 has merged before making them safe as well.
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std: make `cmath` functions safe The floating point intrinsics are more difficult, I'll probably wait until rust-lang#119899 has merged before making them safe as well.
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std: make `cmath` functions safe The floating point intrinsics are more difficult, I'll probably wait until rust-lang#119899 has merged before making them safe as well.
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std: make `cmath` functions safe The floating point intrinsics are more difficult, I'll probably wait until rust-lang#119899 has merged before making them safe as well.
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Rollup merge of rust-lang#139107 - joboet:safe_cmath, r=ibraheemdev std: make `cmath` functions safe The floating point intrinsics are more difficult, I'll probably wait until rust-lang#119899 has merged before making them safe as well.
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Summary
This PR changes how bootstrap builds the stage 1 compiler by switching to precompiled stage 0 standard library instead of building the in-tree one. The goal was to update bootstrap to use the beta standard library at stage 0 rather than compiling it from source (see the motivation at rust-lang/compiler-team#619).
Previously, to build a stage 1 compiler bootstrap followed this path:
With this PR, the new path is:
This also means that
cfg(bootstrap)/cfg(not(bootstrap))is no longer needed for library development.Building "library"
Since stage0
stdis no longer in-treex build/test/check library --stage 0is now no-op. The minimum supported stage to buildstdis now 1. For the same reason, default stage values in the library profile is no longer 0.Because building the in-tree library now requires a stage1 compiler, I highly recommend library developers to enable
download-rustcto speed up compilation time.If you encounter a bug or unexpected results please open a topic in the #t-infra/bootstrap Zulip channel or create a bootstrap issue.
(Review thread: https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap/topic/Review.20thread.3A.20stage.200.20redesign.20PR/with/508271433)
Blocked on #122709try-job: dist-x86_64-linux