Rollup of 7 pull requests #129946
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Rollup of 7 pull requests #129946
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Calling `Cargo::configure_linker` unconditionally slows down certain commands (e.g., "check" command) without providing any benefit. Signed-off-by: onur-ozkan <work@onurozkan.dev>
For commands like check/clean there is no need to check for target tools. Avoiding this check can also speed up the process. Signed-off-by: onur-ozkan <work@onurozkan.dev>
otherwise the test would build in the source root's `target` folder
it'll be easier to see and update the list: the other cmd args can just be ignored
…le out of the code block
…-rtems-arm-xilinx-zedboard, r=tgross35 Add target support for RTEMS Arm # `armv7-rtems-eabihf` This PR adds a new target for the RTEMS RTOS. To get things started it focuses on Xilinx/AMD Zynq-based targets, but in theory it should also support other armv7-based board support packages in the future. Given that RTEMS has support for many POSIX functions it is mostly enabling corresponding unix features for the new target. I also previously started a PR in libc (rust-lang/libc#3561) to add the needed OS specific C-bindings and was told that a PR in this repo is needed first. I will update the PR to the newest version after approval here. I will probably also need to change one line in the backtrace repo. Current status is that I could compile rustc for the new target locally (with the updated libc and backtrace) and could compile binaries, link, and execute a simple "Hello World" RTEMS application for the target hardware. > A proposed target or target-specific patch that substantially changes code shared with other targets (not just target-specific code) must be reviewed and approved by the appropriate team for that shared code before acceptance. There should be no breaking changes for existing targets. Main changes are adding corresponding `cfg` switches for the RTEMS OS and adding the C binding in libc. # Tier 3 target 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 do the maintenance (for now) further members of the RTEMS community will most likely join once the first steps have been done. > - 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. > - 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. > - If possible, use only letters, numbers, dashes and underscores for the name. Periods (`.`) are known to cause issues in Cargo. The proposed triple is `armv7-rtems-eabihf` > - 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. > - 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`). > - 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. > - 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. > - "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. The tools consists of the cross-compiler toolchain (gcc-based). The RTEMS kernel (BSD license) and parts of the driver stack of FreeBSD (BSD license). All tools are FOSS and publicly available here: https://gitlab.rtems.org/rtems There are also no new features or dependencies introduced to the Rust code. > - 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. N/A to me. I am not a reviewer nor Rust team member. > - 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. `core` and `std` compile. Some advanced features of the `std` lib might not work yet. However, the goal of this tier 3 target it to make it easier for other people to build and run test applications to better identify the unsupported features and work towards enabling them. > - 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. Building is described in platform support doc. Running simple unit tests works. Running the test suite of the stdlib is currently not that easy. Trying to work towards that after the this target has been added to the nightly. > - 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. Understood. > - 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. Ok > - 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. I think, I didn't add any breaking changes for any existing targets (see the comment regarding features above). > - Tier 3 targets must be able to produce assembly using at least one of rustc's supported backends from any host target. Can produce assembly code via the llvm backend (tested on Linux). > > If a tier 3 target stops meeting these requirements, or the target maintainers no longer have interest or time, or the target shows no signs of activity and has not built for some time, or removing the target would improve the quality of the Rust codebase, we may post a PR to remove it; any such PR will be CCed to the target maintainers (and potentially other people who have previously worked on the target), to check potential interest in improving the situation.GIAt this tier, the Rust project provides no official support for a target, so we place minimal requirements on the introduction of targets. Understood. r? compiler-team
bypass linker configuration and cross target check for specific commands Avoids configuring the linker and checking cross-target-specific tools unless necessary. Resolves rust-lang#128180 cc ``@ChrisDenton``
…d-items, r=t-rustdoc-frontend [rustdoc] Sort impl associated items by kinds and then by appearance Following [this zulip discussion](https://rust-lang.zulipchat.com/#narrow/stream/266220-t-rustdoc/topic/.22Freeze.22.20order.20of.20items.20in.20.28trait.29.20impls.3F), I implemented it. This brings the following change: impl associated items will now be grouped by kind and will now be first sorted by kind and then by the order they are declared in the source code (like currently). The kinds are sorted in the following order: 1. Constants 2. Types 3. Functions The reason behind this order is that associated constants can be used in associated types (like length in arrays) and both associated types and associated constants can be used in associated functions. So if an associated item from the same impl is used, its definition will always be above where it's being used. cc `@camelid` r? `@notriddle`
Add test to build crates used by r-a on stable r? ``@Kobzol`` I've opened other PRs for this one to work and they've landed already. I cherry-picked your commit, and added the last remaining pieces we needed I think.
Rename dump of coroutine by-move-body to be more consistent, fix ICE in dump_mir First, we add a missing match for `DefKind::SyntheticCoroutineBody` in `dump_mir`. Fixes rust-lang#129703. The second commit (directly below) serves as a test. Second, we reorder the `dump_mir` in `coroutine_by_move_body_def_id` to be *after* we adjust the body source, and change the disambiguator so it reads more like any other MIR body. This also serves as a test for the ICE, since we're dumping the MIR of a body with `DefKind::SyntheticCoroutineBody`. Third, we change the parenting of the synthetic MIR body to have the *coroutine-closure* (i.e. async closure) as its parent, so we don't have long strings of `{closure#0}-{closure#0}-{closure#0}`.
…, r=notriddle Unify scraped examples with other code examples Fixes rust-lang#129763. This first PR both fixes rust-lang#129763 but also unifies buttons display for code examples:  You can test it [here](https://rustdoc.crud.net/imperio/unify-code-examples/doc/scrape_examples/fn.test.html) and [here](https://rustdoc.crud.net/imperio/unify-code-examples/doc/scrape_examples/fn.test_many.html). I'm planning to send a follow-up to make the buttons generated in JS directly (or I can do it in this PR directly if you prefer). cc `@willcrichton` r? `@notriddle`
…rors explain why Rvalue::Len still exists I just spent a bit of time trying to remove this until I realized why that's non-trivial. Let's document that for the next person. :)
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…llaumeGomez Rollup of 7 pull requests Successful merges: - rust-lang#127021 (Add target support for RTEMS Arm) - rust-lang#128871 (bypass linker configuration and cross target check for specific commands) - rust-lang#129471 ([rustdoc] Sort impl associated items by kinds and then by appearance) - rust-lang#129529 (Add test to build crates used by r-a on stable) - rust-lang#129706 (Rename dump of coroutine by-move-body to be more consistent, fix ICE in dump_mir) - rust-lang#129796 (Unify scraped examples with other code examples) - rust-lang#129939 (explain why Rvalue::Len still exists) r? `@ghost` `@rustbot` modify labels: rollup
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