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Before merging the `cf-protection` flag, it was necessary to use a
locally-compiled version of `rustc`. This is no longer the case and the
documentation should reflect this.
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https://github.com/rust-lang/rust/pull/95604 implemented a better and more fine-grained way of keeping exported symbols alive.
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Remove `--extern-location` and all associated code
`--extern-location` was an experiment to investigate the best way to
generate useful diagnostics for unused dependency warnings by enabling a
build system to identify the corresponding build config.
While I did successfully use this, I've since been convinced the
alternative `--json unused-externs` mechanism is the way to go, and
there's no point in having two mechanisms with basically the same
functionality.
This effectively reverts https://github.com/rust-lang/rust/pull/72603
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Update books
## nomicon
1 commits in 11f1165e8a2f5840467e748c8108dc53c948ee9a..c7d8467ca9158da58ef295ae65dbf00a308752d9
2022-03-19 16:02:00 -0400 to 2022-04-06 14:26:54 +0900
- Change "writers" to "readers" for Deref. (rust-lang/nomicon#346)
## reference
7 commits in c97d14fa6fed0baa9255432b8a93cb70614f80e3..b5f6c2362baf932db9440fbfcb509b309237ee85
2022-03-19 18:18:10 -0700 to 2022-04-10 19:19:51 -0700
- Fix typo: `?` should be inside `<sup>` tags (rust-lang/reference#1190)
- Update aarch64 to use neon as fp (rust-lang/reference#1184)
- Boolean literal expressions (rust-lang/reference#1189)
- Document that unary negation of a signed integer literal cannot cause an overflow error (rust-lang/reference#1188)
- Document compatibility between declarative and procedural macro tokens (rust-lang/reference#1169)
- Document native library modifier syntax and the `whole-archive` modifier specifically (rust-lang/reference#1170)
- Numeric literal expressions and literal suffixes (rust-lang/reference#1177)
## book
8 commits in ea90bbaf53ba64ef4e2da9ac2352b298aec6bec8..765318b844569a642ceef7bf1adab9639cbf6af3
2022-03-28 21:59:34 -0400 to 2022-04-12 21:14:47 -0400
- Propagate nostarch edits to src
- Propagate updated test example code to nostarch snapshot
- Edits to nostarch edits
- edits from nostarch
- Fix error message for the example code
- update ch13-02 to reflect changes in rust-lang/book#2797
- Update to 1.59
- Edits to chapter 2 after tech review
## rust-by-example
4 commits in ec954f35eedf592cd173b21c05a7f80a65b61d8a..c2a98d9fc5d29c481d42052fbeccfde15ed03116
2022-03-22 11:09:06 -0300 to 2022-04-08 06:44:18 -0300
- Code highlight a variable (rust-lang/rust-by-example#1530)
- Add a comment to note that warnings may not be shown in a browser in the Variable Bindings section (rust-lang/rust-by-example#1529)
- Make all new types have UpperCamelCase names in code example in the Aliasing section (rust-lang/rust-by-example#1528)
- Replace `C` with C/C++ (rust-lang/rust-by-example#1527)
## rustc-dev-guide
6 commits in 155126b1d2e2cb01ddb1d7ba9489b90d7cd173ad..eeb5a83c15b6ae60df3e4f19207376b22c6fbc4c
2022-03-22 14:34:21 +0100 to 2022-04-11 23:29:48 +0900
- method-lookup.md improvements (rust-lang/rustc-dev-guide#1296)
- Consolidate crates.io convention section (rust-lang/rustc-dev-guide#1326)
- Update examples with 1.61.0-nightly (latest version) (rust-lang/rustc-dev-guide#1330)
- r-a: Use `python3 x.py` instead of `./x.py` (rust-lang/rustc-dev-guide#1335)
- Update miri.md: correct a minor typo (rust-lang/rustc-dev-guide#1334)
- Add example how lints can be feature gated
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clarify doc(cfg) wording
The current "This is supported" wording implies that it's possible to
still use the item on other configurations, but in an unsupported way.
Changing this to "Available" removes this ambiguity.
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Add missing links in platform support docs
I was looking at m68k support and saw that https://doc.rust-lang.org/rustc/platform-support.html and the sidebar there were missing some links to target documentation
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`--extern-location` was an experiment to investigate the best way to
generate useful diagnostics for unused dependency warnings by enabling a
build system to identify the corresponding build config.
While I did successfully use this, I've since been convinced the
alternative `--json unused-externs` mechanism is the way to go, and
there's no point in having two mechanisms with basically the same
functionality.
This effectively reverts https://github.com/rust-lang/rust/pull/72603
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The current "This is supported" wording implies that it's possible to
still use the item on other configurations, but in an unsupported way.
Changing this to "Available" removes this ambiguity.
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Improve Rustdoc UI for scraped examples with multiline arguments, fix overflow in line numbers
This PR improves a few aspects of the scrape examples feature in Rustdoc.
* Only function names and not the full call expression are highlighted.
* For call-sites with multiline arguments, the minimized code viewer will scroll to the top of the call-site rather than the middle if the argument is larger than the viewer size, ensuring that the function name is visible.
* This fixes an issue where the line numbers column had a visible x-scroll bar.
r? `@GuillaumeGomez`
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Note that CI tests Windows 10
Currently being [discussed on Zulip](https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/Windows.207).
r? `````@joshtriplett`````
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r=pietroalbini
Update linker-plugin-lto.md to 1.60
I remembered this table when I was looking into what version of LLVM 1.60.0 was using 🙂
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* split `fuzzy_provenance_casts` into a ptr2int and a int2ptr lint
* feature gate both lints
* update documentation to be more realistic short term
* add tests for these lints
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`rustc +1.49.0 -Vv` and `rustc +1.50.0 -Vv` do not print out an
`LLVM version` line, which prevents the script from detecting them.
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The table rows were obtained via the script embedded in the page.
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specifically
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RustyHermit now maintains custom json targets, which are distributed with the kernel. [1]
[1]: https://github.com/hermitcore/libhermit-rs/pull/395
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Update the unstable book with the new `values()` form of check-cfg
Forgot to update the unstable book in https://github.com/rust-lang/rust/pull/94362
r? ``@petrochenkov``
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Signed-off-by: codehorseman <cricis@yeah.net>
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Add riscv32im-unknown-none-elf built-in target triple.
* Add built-in target `riscv32im-unknown-none-elf`.
* Update `platform-support.md` to list it as a Tier 3 target.
Below are details on how this target meets the requirements for tier 3:
> 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 would be willing to be a target maintainer, though I would appreciate if others with more experience around RISC-V volunteered to help with that as well.
> 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.
Uses the same naming as the LLVM target, and the same convention as many other bare-metal targets.
> 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.
I don't believe there is any ambiguity here.
> 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.
I don't see any legal issues here.
> 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.
> If the target supports building host tools (such as rustc or cargo), those host tools must not depend on proprietary (non-FOSS) libraries, other than ordinary runtime libraries supplied by the platform and commonly used by other binaries built for the target. 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.
> Targets should not require proprietary (non-FOSS) components to link a functional binary or library.
> "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.
I see no issues with any of the above.
> 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.
Only relevant to those making approval decisions.
> 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 `alloc` can be used. `std` cannot be used as this is a bare-metal target.
> 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 tests (even if they do not pass), the documentation must explain how to run tests for the target, using emulation if possible or dedicated hardware if necessary.
Use `--target=x86_64-unknown-none-elf` option to cross compile, just like any target. The target does not support running tests.
> 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.
I don't foresee this being a problem.
> 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.
No other targets should be affected by the pull request.
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r=Mark-Simulacrum
Update armv7-unknown-linux-uclibceabi platform support page.
A few edits and fixes to the support page for the armv7-unknown-linux-uclibceabi target.
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r=Mark-Simulacrum
Use modern formatting for format! macros
This updates the standard library's documentation to use the new format_args syntax.
The documentation is worthwhile to update as it should be more idiomatic
(particularly for features like this, which are nice for users to get acquainted
with). The general codebase is likely more hassle than benefit to update: it'll
hurt git blame, and generally updates can be done by folks updating the code if
(and when) that makes things more readable with the new format.
A few places in the compiler and library code are updated (mostly just due to
already having been done when this commit was first authored).
`eprintln!("{}", e)` becomes `eprintln!("{e}")`, but `eprintln!("{}", e.kind())` remains untouched.
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This updates the standard library's documentation to use the new syntax. The
documentation is worthwhile to update as it should be more idiomatic
(particularly for features like this, which are nice for users to get acquainted
with). The general codebase is likely more hassle than benefit to update: it'll
hurt git blame, and generally updates can be done by folks updating the code if
(and when) that makes things more readable with the new format.
A few places in the compiler and library code are updated (mostly just due to
already having been done when this commit was first authored).
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Update riscv32im-unknown-none-elf to Tier2 support.
Downgrade to Tier 3 platform support.
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Update note about tier 2 docs.
As of #92800, docs are now available for tier-2 platforms.
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Also sort sidebar alphabetically by document filename
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rustdoc & doc: no `shortcut` for `rel="icon"`
According to https://html.spec.whatwg.org/multipage/links.html#rel-icon:
> For historical reasons, the `icon` keyword may be preceded by the keyword "`shortcut`".
And to https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types:
> **Warning:** The `shortcut` link type is often seen before `icon`, but this link type is non-conforming, ignored and **web authors must not use it anymore.**
While it was removed from the Rust logo case a while ago in commit 085679c ("Use theme-adaptive SVG favicon from other Rust sites"), it is still there for the custom logo case.
Also updated a few other instances.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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Documentation was missed when demoting Windows XP to no_std only
After a quick discussion on #81250 which removed special casing for mutexes added [here](https://github.com/rust-lang/rust/commit/10b103af48368c5df644fa61dc417a36083922c8) to support Windows XP, we can't say that the standard library can build for it.
This change modifies the tier 3 non-ARM targets to show the standard library will no longer build for these and there is no work being done to change that.
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Modify the tier 3 non-ARM targets to show the standard library will no longer build for these and there is no work being done to change that.
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Fix broken link from rustdoc docs to ayu theme
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Update search location from a relative path to absolute
This should address issue #90311.
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