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Move methods from Map to TyCtxt, part 4.
A follow-up to https://github.com/rust-lang/rust/pull/137350.
r? ```@Zalathar```
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Update books
## rust-lang/book
11 commits in 4a01a9182496f807aaa5f72d93a25ce18bcbe105..81a976a237f84b8392c4ce1bd5fd076eb757a2eb
2025-02-27 22:10:41 UTC to 2025-02-24 18:36:27 UTC
- Ch. 10: Make social media discussion generic. (rust-lang/book#4249)
- Another Ch. 17 -> 18 fix (rust-lang/book#4247)
- Ch. 05: further tweak to wording about `user1` availability (rust-lang/book#4246)
- Ch. 02: Fix rand version mistake (from testing) (rust-lang/book#4245)
- Ch. 19: Correct the discussion of `fn` type and closures (rust-lang/book#4244)
- Edition maintenance: scripting the updates for future work (rust-lang/book#4243)
- Ch. 17: fresh-eyes edits (rust-lang/book#4242)
- Ch. 17: drop lifetime not required in 2024 Edition (rust-lang/book#4212)
- Appendix B, Operators: Replace “member access” with “field access” and “method call”. (rust-lang/book#4240)
- Update to Rust 1.85 and 2024 Edition! (rust-lang/book#4241)
- Chapter 1: fix 'four things' now that spacing is not emphasized (rust-lang/book#4239)
## rust-lang/edition-guide
2 commits in daa4b763cd848f986813b5cf8069e1649f7147af..1e27e5e6d5133ae4612f5cc195c15fc8d51b1c9c
2025-03-04 22:02:00 UTC to 2025-02-26 12:47:41 UTC
- Mention both `rustfmt.toml` and `.rustfmt.toml` (rust-lang/edition-guide#372)
- Fix a typo (rust-lang/edition-guide#370)
## rust-lang/nomicon
1 commits in 8f5c7322b65d079aa5b242eb10d89a98e12471e1..b4448fa406a6dccde62d1e2f34f70fc51814cdcc
2025-03-01 04:48:05 UTC to 2025-03-01 04:48:05 UTC
- Update to 2024 edition (rust-lang/nomicon#481)
## rust-lang/reference
8 commits in 615b4cec60c269cfc105d511c93287620032d5b0..dda31c85f2ef2e5d2f0f2f643c9231690a30a626
2025-03-09 14:25:25 UTC to 2025-02-25 16:07:17 UTC
- Rework note blocks and change admonition rendering (rust-lang/reference#1754)
- Add more information on rules and tests (rust-lang/reference#1753)
- Mention `explicit_builtin_cfgs_in_flags` lint cfg chapter (rust-lang/reference#1747)
- fixup test links (rust-lang/reference#1741)
- Fix diagnostics typo: `do_no_recommend` -> `do_not_recommend` (rust-lang/reference#1749)
- panic runtime and C-unwind documentation (rust-lang/reference#1226)
- Closures: fix example of desugaring (rust-lang/reference#1743)
- Update boolean.md, Comment breaks paragraph format (rust-lang/reference#1744)
## rust-lang/rust-by-example
1 commits in 66543bbc5b7dbd4e679092c07ae06ba6c73fd912..6f69823c28ae8d929d6c815181c73d3e99ef16d3
2025-03-09 13:12:24 UTC to 2025-03-09 13:12:24 UTC
- Update mdbook to 0.4.46 (rust-lang/rust-by-example#1914)
try-job: x86_64-gnu-distcheck
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Continuing the work from #137350.
Removes the unused methods: `expect_variant`, `expect_field`,
`expect_foreign_item`.
Every method gains a `hir_` prefix.
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Allow specifying glob patterns for try jobs
This PR modifies the `try-job` lookup logic to allow glob patterns. So you can e.g. request all MSVC-related jobs with `try-job: *msvc*`.
Best reviewed commit by commit.
r? ``````@marcoieni``````
try-job: `*msvc*`
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Document -Z crate-attr
and also add a bunch of tests
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Add maintainers for powerpc64le-unknown-linux-gnu
The instructions are similar to `powerpc64le-unknown-linux-musl`
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Support for `wasm32-wali-linux-musl` Tier-3 target
Adding a new target -- `wasm32-wali-linux-musl` -- to the compiler can target the [WebAssembly Linux Interface](https://github.com/arjunr2/WALI) according to MCP rust-lang/compiler-team#797
Preliminary support involves minimal changes, primarily
* A new target spec for `wasm32_wali_linux_musl` that bridges linux options with supported wasm options. Right now, since there is no canonical Linux ABI for Wasm, we use `wali` in the vendor field, but this can be migrated in future version.
* Dependency patches to the following crates are required and these crates can be updated to bring target support:
- **stdarch** rust-lang/stdarch#1702
- **libc** rust-lang/libc#4244
- **cc** rust-lang/cc-rs#1373
* Minimal additions for FFI support
cc `@tgross35` for libc-related changes
Tier-3 policy:
> A tier 3 target must have a designated developer or developers (the "target maintainers") on record to be CCed when issues arise regarding the target. (The mechanism to track and CC such developers may evolve over time.)
I will take responsibility for maintaining this target as well as issues
> Targets must use naming consistent with any existing targets; for instance, a target for the same CPU or OS as an existing Rust target should use the same name for that CPU or OS. Targets should normally use the same names and naming conventions as used elsewhere in the broader ecosystem beyond Rust (such as in other toolchains), unless they have a very good reason to diverge. Changing the name of a target can be highly disruptive, especially once the target reaches a higher tier, so getting the name right is important even for a tier 3 target.
The target name is consistent with naming patterns from currently supported targets for arch (wasm32), OS, (linux) and env (musl)
> Target names should not introduce undue confusion or ambiguity unless absolutely necessary to maintain ecosystem compatibility. For example, if the name of the target makes people extremely likely to form incorrect beliefs about what it targets, the name should be changed or augmented to disambiguate it.
No naming confusion is introduced.
> If possible, use only letters, numbers, dashes and underscores for the name. Periods (.) are known to cause issues in Cargo.
Compliant
> Tier 3 targets may have unusual requirements to build or use, but must not create legal issues or impose onerous legal terms for the Rust project or for Rust developers or users.
It's fully open source
> The target must not introduce license incompatibilities. Anything added to the Rust repository must be under the standard Rust license (MIT OR Apache-2.0).
Noted
> The target must not cause the Rust tools or libraries built for any other host (even when supporting cross-compilation to the target) to depend on any new dependency less permissive than the Rust licensing policy. This applies whether the dependency is a Rust crate that would require adding new license exceptions (as specified by the tidy tool in the rust-lang/rust repository), or whether the dependency is a native library or binary. In other words, the introduction of the target must not cause a user installing or running a version of Rust or the Rust tools to be subject to any new license requirements.
Compliant
> Compiling, linking, and emitting functional binaries, libraries, or other code for the target (whether hosted on the target itself or cross-compiling from another target) must not depend on proprietary (non-FOSS) libraries. Host tools built for the target itself may depend on the ordinary runtime libraries supplied by the platform and commonly used by other applications built for the target, but those libraries must not be required for code generation for the target; cross-compilation to the target must not require such libraries at all. For instance, rustc built for the target may depend on a common proprietary C runtime library or console output library, but must not depend on a proprietary code generation library or code optimization library. Rust's license permits such combinations, but the Rust project has no interest in maintaining such combinations within the scope of Rust itself, even at tier 3.
All tools are open-source
> "onerous" here is an intentionally subjective term. At a minimum, "onerous" legal/licensing terms include but are not limited to: non-disclosure requirements, non-compete requirements, contributor license agreements (CLAs) or equivalent, "non-commercial"/"research-only"/etc terms, requirements conditional on the employer or employment of any particular Rust developers, revocable terms, any requirements that create liability for the Rust project or its developers or users, or any requirements that adversely affect the livelihood or prospects of the Rust project or its developers or users.
No terms present
> Neither this policy nor any decisions made regarding targets shall create any binding agreement or estoppel by any party. If any member of an approving Rust team serves as one of the maintainers of a target, or has any legal or employment requirement (explicit or implicit) that might affect their decisions regarding a target, they must recuse themselves from any approval decisions regarding the target's tier status, though they may otherwise participate in discussions.
This requirement does not prevent part or all of this policy from being cited in an explicit contract or work agreement (e.g. to implement or maintain support for a target). This requirement exists to ensure that a developer or team responsible for reviewing and approving a target does not face any legal threats or obligations that would prevent them from freely exercising their judgment in such approval, even if such judgment involves subjective matters or goes beyond the letter of these requirements.
I am not a reviewer
> Tier 3 targets should attempt to implement as much of the standard libraries as possible and appropriate (core for most targets, alloc for targets that can support dynamic memory allocation, std for targets with an operating system or equivalent layer of system-provided functionality), but may leave some code unimplemented (either unavailable or stubbed out as appropriate), whether because the target makes it impossible to implement or challenging to implement. The authors of pull requests are not obligated to avoid calling any portions of the standard library on the basis of a tier 3 target not implementing those portions.
This target supports the full standard library with appropriate configuration stubs where necessary (however, similar to all existing wasm32 targets, it excludes dynamic linking or hardware-specific features)
> The target must provide documentation for the Rust community explaining how to build for the target, using cross-compilation if possible. If the target supports running binaries, or running tests (even if they do not pass), the documentation must explain how to run such binaries or tests for the target, using emulation if possible or dedicated hardware if necessary.
Preliminary documentation is provided at https://github.com/arjunr2/WALI. Further detailed docs (if necessary) can be added once this PR lands
> Tier 3 targets must not impose burden on the authors of pull requests, or other developers in the community, to maintain the target. In particular, do not post comments (automated or manual) on a PR that derail or suggest a block on the PR based on a tier 3 target. Do not send automated messages or notifications (via any medium, including via `@)` to a PR author or others involved with a PR regarding a tier 3 target, unless they have opted into such messages.
Backlinks such as those generated by the issue/PR tracker when linking to an issue or PR are not considered a violation of this policy, within reason. However, such messages (even on a separate repository) must not generate notifications to anyone involved with a PR who has not requested such notifications.
Understood
> Patches adding or updating tier 3 targets must not break any existing tier 2 or tier 1 target, and must not knowingly break another tier 3 target without approval of either the compiler team or the maintainers of the other tier 3 target.
In particular, this may come up when working on closely related targets, such as variations of the same architecture with different features. Avoid introducing unconditional uses of features that another variation of the target may not have; use conditional compilation or runtime detection, as appropriate, to let each target run code supported by that target.
To the best of my knowledge, it does not break any existing target in the ecosystem -- only minimal configuration-specific additions were made to support the target.
> Tier 3 targets must be able to produce assembly using at least one of rustc's supported backends from any host target. (Having support in a fork of the backend is not sufficient, it must be upstream.)
We can upstream LLVM target support
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Co-authored-by: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
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Interface
This commit does not patch libc, stdarch, or cc
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Rollup of 8 pull requests
Successful merges:
- #136395 (Update to rand 0.9.0)
- #137279 (Make some invalid codegen attr errors structured/translatable)
- #137585 (Update documentation to consistently use 'm' in atomic synchronization example)
- #137926 (Add a test for `-znostart-stop-gc` usage with LLD)
- #138074 (Support `File::seek` for Hermit)
- #138238 (Fix dyn -> param suggestion in struct ICEs)
- #138270 (chore: Fix some comments)
- #138286 (triagebot.toml: Don't label `test/rustdoc-json` as A-rustdoc-search (…)
r? `@ghost`
`@rustbot` modify labels: rollup
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failures related to not finding LLVM libraries
Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Signed-off-by: StevenMia <flite@foxmail.com>
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Remove i586-pc-windows-msvc
See [MCP 840](https://github.com/rust-lang/compiler-team/issues/840).
I left a specialized error message that should help users that hit this in the wild (for example, because they use it in their CI).
```
error: Error loading target specification: the `i586-pc-windows-msvc` target has been removed. Use the `i686-pc-windows-msvc` target instead.
Windows 10 (the minimum required OS version) requires a CPU baseline of at least i686 so you can safely switch. Run `rustc --print target-list` for a list of built-in targets
```
``@workingjubilee`` ``@calebzulawski`` fyi portable-simd uses this target in CI, if you wanna remove it already before this happens
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Add minimal platform support documentation for powerpc-unknown-linux-gnuspe
Per https://github.com/rust-lang/rust/pull/137860#issuecomment-2692358259, add minimal platform support documentation, including a brief summary and links to more detailed information about this target.
The added documentation is minimal. This is somewhat similar to [powerpc-unknown-openbsd, which also has no target maintainer](https://doc.rust-lang.org/nightly/rustc/platform-support/powerpc-unknown-openbsd.html). The rest of the template is left to target maintainers.
I also updated powerpc-unknown-linux-muslspe platform support documentation and added link to powerpc-unknown-linux-gnuspe platform support documentation.
cc ```@glaubitz```
cc ```@BKPepe```
r? workingjubilee
```@rustbot``` label +O-PowerPC
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Match Ergonomics 2024: add context and examples to the unstable book
The examples here are pretty limited and don't illustrate the differences between the two feature gates, but my hope is that they get the general idea across. I can try and add some more nuance or more comprehensive examples too if that would help.
Hopefully the doctest isn't too sneaky. I wanted to make the bindings' types explicit, and the most readable way I could think of was to use a helper.
~~Unfortunately it looks like the "run this code" button doesn't work yet, but I made sure the examples are cross-edition, so that should resolve on its own once playground's nightly updates (or if playground's default becomes edition 2024, or if the edition in the markdown gets forwarded to playground).~~ It looks like the default edition on playground is now 2024, so the run button works! There's no output, but having a button to show that it compiles is nice, I think.
Relevant tracking issue: #123076
r? ``````@Nadrieril``````
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Remove unsizing coercions for tuples
See https://github.com/rust-lang/rust/issues/42877#issuecomment-2686010847 and below comments for justification.
Tracking issue: #42877
Fixes: #135217
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Retire the legacy `Makefile`-based `run-make` test infra
The final piece of [porting run-make tests to use Rust #121876](https://github.com/rust-lang/rust/issues/121876).
Closes #121876.
Closes #40713.
Closes #81791 (no longer using `wc`).
Closes #56475 (no longer a problem in current form of that test; we don't ignore the test on `aarch64-unknown-linux-gnu`).
### Summary
This PR removes the legacy `Makefile`-based `run-make` test infra which has served us well over the years. The legacy infra is no longer needed since we ported all of `Makefile`-based `run-make` tests to the new `rmake.rs` infra.
Additionally, this PR:
- Removes `tests/run-make/tools.mk` since no more `Makefile`-based tests remain.
- Updates `tests/run-make/README.md` and rustc-dev-guide docs to remove mention about `Makefile`-based `run-make` tests
- Update test suite requirements in rustc-dev-guide on Windows to no longer need MSYS2 (they should also now run successfully on native Windows MSVC).
- Update `triagebot.toml` to stop backlinking to #121876.
**Thanks to everyone who helped in this effort to modernize the `run-make` test infra and test suite!**
r? bootstrap
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Add `avr-none` to SUMMARY.md and platform-support.md
This was missed this in the implementation PR, so update the links here.
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Fix some typos
Fix some typos
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Support raw-dylib link kind on ELF
raw-dylib is a link kind that allows rustc to link against a library without having any library files present.
This currently only exists on Windows. rustc will take all the symbols from raw-dylib link blocks and put them in an import library, where they can then be resolved by the linker.
While import libraries don't exist on ELF, it would still be convenient to have this same functionality. Not having the libraries present at build-time can be convenient for several reasons, especially cross-compilation. With raw-dylib, code linking against a library can be cross-compiled without needing to have these libraries available on the build machine. If the libc crate makes use of this, it would allow cross-compilation without having any libc available on the build machine. This is not yet possible with this implementation, at least against libc's like glibc that use symbol versioning. The raw-dylib kind could be extended with support for symbol versioning in the future.
This implementation is very experimental and I have not tested it very well. I have tested it for a toy example and the lz4-sys crate, where it was able to successfully link a binary despite not having a corresponding library at build-time.
I was inspired by Björn's comments in https://internals.rust-lang.org/t/bundle-zig-cc-in-rustup-by-default/22096/27
Tracking issue: #135694
r? bjorn3
try-job: aarch64-apple
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: test-various
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This was missed this in the implementation PR, so update the links here.
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Signed-off-by: fuyangpengqi <995764973@qq.com>
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See MCP 840.
I left a specialized error message that should help users that hit this
in the wild (for example, because they use it in their CI).
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With the removal of `cfg(parallel_compiler)`, these are always shared
references and `std::sync::OnceLock`.
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doc: update Wasmtime flags
Wasmtime's `--wasm-features` and `--wasi-modules` flags have been renamed since these docs were initially written.
Additionally, from my testing I don't believe `--wasm threads` is needed if `--wasi threads` is passed already.
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Rewrite the `ci.py` script in Rust
It would seem that I would learn by now that any script written in Python will become unmaintainable sooner or later, but alas..
r? `@marcoieni`
try-job: aarch64-gnu
try-job: dist-x86_64-linux-alt
try-job: x86_64-msvc-ext2
Fixes: https://github.com/rust-lang/rust/issues/137013
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And remove outdated requirements to run `run-make` tests on Windows.
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Add missing case explanation for doc inlined re-export of doc hidden item
This case was not covered in the rustdoc book as uncovered in #137342.
r? ``@notriddle``
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Wasmtime's `--wasm-features` and `--wasi-modules` flags have been renamed
since these docs were initially written.
Additionally, from my testing I don't believe `--wasm threads` is needed if
`--wasi threads` is passed already.
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raw-dylib is a link kind that allows rustc to link against a library
without having any library files present.
This currently only exists on Windows. rustc will take all the symbols
from raw-dylib link blocks and put them in an import library, where they
can then be resolved by the linker.
While import libraries don't exist on ELF, it would still be convenient
to have this same functionality. Not having the libraries present at
build-time can be convenient for several reasons, especially
cross-compilation. With raw-dylib, code linking against a library can be
cross-compiled without needing to have these libraries available on the
build machine. If the libc crate makes use of this, it would allow
cross-compilation without having any libc available on the build
machine. This is not yet possible with this implementation, at least
against libc's like glibc that use symbol versioning.
The raw-dylib kind could be extended with support for symbol versioning
in the future.
This implementation is very experimental and I have not tested it very
well. I have tested it for a toy example and the lz4-sys crate, where it
was able to successfully link a binary despite not having a
corresponding library at build-time.
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Update books
## rust-lang/book
2 commits in d4d2c18cbd20876b2130a546e790446a8444cb32..4a01a9182496f807aaa5f72d93a25ce18bcbe105
2025-02-24 14:48:34 UTC to 2025-02-13 19:29:47 UTC
- Fix typos in chapter 17 (rust-lang/book#4238)
- NoStarch backports (rust-lang/book#4224)
## rust-lang/edition-guide
2 commits in 8dbdda7cae4fa030f09f8f5b63994d4d1dde74b9..daa4b763cd848f986813b5cf8069e1649f7147af
2025-02-22 14:58:51 UTC to 2025-02-21 02:30:17 UTC
- Remove precise capturing features (rust-lang/edition-guide#362)
- use same name as previous example (rust-lang/edition-guide#360)
## rust-lang/nomicon
1 commits in 336f75835a6c0514852cc65aba9a698b699b13c8..8f5c7322b65d079aa5b242eb10d89a98e12471e1
2025-02-19 13:16:47 UTC to 2025-02-19 13:16:47 UTC
- other-reprs: do not make it sound like we are making ABI promises for repr(int) enums (rust-lang/nomicon#461)
## rust-lang/reference
4 commits in 6195dbd70fc6f0980c314b4d23875ac570d8253a..615b4cec60c269cfc105d511c93287620032d5b0
2025-02-18 23:01:53 UTC to 2025-02-13 15:12:49 UTC
- Add rule identifiers to names chapters (rust-lang/reference#1737)
- Switch from AVX to SSE in the example (rust-lang/reference#1735)
- Remove attributes from struct field rest patterns (rust-lang/reference#1736)
- Update reference for target_feature_11. (rust-lang/reference#1720)
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Co-authored-by: DianQK <dianqk@dianqk.net>
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stabilize stage management for rustc tools
https://github.com/rust-lang/rust/pull/135990 got out of control due to excessive complexity. This PR aims to achieve the same goal with a simpler approach, likely through multiple smaller PRs. I will keep the other one read-only and open as a reference for future work.
This work stabilizes the staging logic for `ToolRustc` programs, so you no longer need to handle build and target compilers separately in steps. Previously, most tools didn't do this correctly, which was causing the compiler to be built twice (e.g., `x test cargo --stage 1` would compile the stage 2 compiler before, but now it only compiles the stage 1 compiler).
I also tried to document how we should write `ToolRustc` steps as they are quite different and require more attention than other tools.
Next goal is to stabilize how stages are handled for the rustc itself. Currently, `x build --stage 1` builds the stage 1 compiler which is fine, but `x build compiler --stage 1` builds stage 2 compiler.
~~for now, r? ghost~~
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r=GuillaumeGomez
rustdoc book: acknowledge --document-hidden-items
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