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Add a new 'pc' option to -Z branch-protection for aarch64 that
enables the use of PC as a diversifier in PAC branch protection code.
When the pauth-lr target feature is enabled in combination
with -Z branch-protection=pac-ret,pc, the new 9.5-a instructions
(pacibsppc, retaasppc, etc) will be generated.
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* Fix broken link in syntax-intro.md
* Fix broken link in tests/compiletest.md
* Fix incorrectly formatted reference-style link in compiler-src.md
* Fix broken links to rustc-driver.md to point to rustc-driver/intro.md
* Define URLs for incomplete links to rustc sources in stabilization_guide.md
* Define link to coherence.md for incomplete link in solve/invariants.md
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This avoids pathological cases where chains of binops get progressively
deeper.
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This commit is a response to feedback on the displayed type
signatures results, by making generics act stricter.
Generics are tightened by making order significant. This means
`Vec<Allocator>` now matches only with a true vector of allocators,
instead of matching the second type param. It also makes unboxing
within generics stricter, so `Result<A, B>` only matches if `B`
is in the error type and `A` is in the success type. The top level
of the function search is unaffected.
Find the discussion on:
* <https://rust-lang.zulipchat.com/#narrow/stream/393423-t-rustdoc.2Fmeetings/topic/meeting.202024-07-08/near/449965149>
* <https://github.com/rust-lang/rust/pull/124544#issuecomment-2204272265>
* <https://rust-lang.zulipchat.com/#narrow/channel/266220-t-rustdoc/topic/deciding.20on.20semantics.20of.20generics.20in.20rustdoc.20search/near/476841363>
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r=compiler-errors
Point to Fuchsia team in platform support docs
This consolidates our docs into a single source of truth for the current Fuchsia maintainers.
r? ```@tmandry```
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r=workingjubilee
powerpc64-ibm-aix: update maintainters
Chaofan (`@ecnelises)` and Kai (`@bzEq)` will be passing over maintainership for the target over to David Tenty (`@daltenty)` and Chris Cambly (`@gilamn5tr)`
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Chaofan and Kai will be passing over maintainership for the target over to David Tenty and Chris Cambly.
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Updated for changes in the package server workflow.
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This reverts commit 1239c81c145d2bfb96f32856f377cd741d5c7256.
Fix GH-132185 revert for now until early next year/FreeBSD 13.3
becomes EOL.
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Update books
## rust-lang/edition-guide
7 commits in c7ebae25cb4801a31b6f05353f6d85bfa6feedd1..1f07c242f8162a711a5ac5a4ea8fa7ec884ee7a9
2024-10-21 14:29:49 UTC to 2024-10-19 19:08:20 UTC
- 2024: Add reserved syntax (rust-lang/edition-guide#326)
- Update stdout of `cargo new` (rust-lang/edition-guide#327)
- Don't run doctests on rustfmt ident sorting page
- add rustfmt raw identifer sorting doc (rust-lang/edition-guide#321)
- Add some tips for what to be careful of with rustdoc-doctests (rust-lang/edition-guide#323)
- Remove cargo-remove-implicit-features (rust-lang/edition-guide#324)
- Rename doctest standalone tag (rust-lang/edition-guide#325)
## rust-embedded/book
1 commits in f40a8b420ec4b4505d9489965e261f1d5c28ba23..ddbf1b4e2858fedb71b7c42eb15c4576517dc125
2024-10-13 19:53:37 UTC to 2024-10-13 19:53:37 UTC
- Add link to Cortex-M comparison to install.md (rust-embedded/book#378)
## rust-lang/reference
29 commits in c64e52a3d306eac0129f3ad6c6d8806ab99ae2e9..23ce619966541bf2c80d45fdfeecf3393e360a13
2024-10-05 00:33:03 +0000 to 2024-10-22 21:34:51 +0000
- Mention `--print cfg` under set configuration options (rust-lang/reference#1636)
- Fix `pat` fragment specifier to be the "current" edition (rust-lang/reference#1640)
- Add restriction for cfg_attr with crate_type and crate_name (rust-lang/reference#1649)
- Sort macro fragment specifiers (rust-lang/reference#1641)
- Document mixed-site hygiene (rust-lang/reference#1656)
- Clarify that "macro attributes" refers to proc macros (rust-lang/reference#1660)
- mdbook-spec: Fix Spec::new creation (rust-lang/reference#1658)
- Fix stdcall example broken by recent rustc change (rust-lang/reference#1659)
- Add spec identifiers to const_eval.md (rust-lang/reference#1569)
- Add identifier syntax to trait-bounds.md (rust-lang/reference#1631)
- Add identifier syntax to macro-ambiguity.md (rust-lang/reference#1634)
- Add spec identifier syntax to conditional-compilation.md (rust-lang/reference#1564)
- Add spec identifiers to behaviour-considered-undefined.md (rust-lang/reference#1562)
- Add test linking (rust-lang/reference#1646)
- Allow `deny` inside `forbid` as a no-op (rust-lang/reference#1655)
- Add identifier syntax to identifiers.md (rust-lang/reference#1583)
- Add spec identifiers to crates-and-source-files.md (rust-lang/reference#1570)
- Add identifier syntax to linkage.md (rust-lang/reference#1633)
- Add identifier syntax to type-coercions.md (rust-lang/reference#1632)
- Add identifiers to variables.md (rust-lang/reference#1626)
- Add identifier syntax to lexer chapters (rust-lang/reference#1620)
- Add spec identifier syntax to `unsafe-keyword.md` and `unsafety.md` (rust-lang/reference#1619)
- Add identifier syntax to types and subchapters. (rust-lang/reference#1618)
- Add identifier syntax to subtyping.md (rust-lang/reference#1613)
- Add identifier syntax to statements.md (rust-lang/reference#1611)
- Add identifier syntax to type-layout.md (rust-lang/reference#1614)
- Clarify definition of "immutable bytes" (rust-lang/reference#1637)
- Add preview artifacts in CI (rust-lang/reference#1647)
- trait bounds grammar: make `?` and `for<>` mutually exclusive (rust-lang/reference#1650)
## rust-lang/rustc-dev-guide
5 commits in 07bc9ca9eb1cd6d9fbbf758c2753b748804a134f..59d94ea75a0b157e148af14c73c2dd60efb7b60a
2024-10-21 02:30:07 UTC to 2024-10-07 21:12:09 UTC
- Add the WASM | WASI | Emscripten notification groups (rust-lang/rustc-dev-guide#2100)
- Update bootstrapping.md (rust-lang/rustc-dev-guide#1900)
- Rename `needs-profiler-support` to `needs-profiler-runtime` (rust-lang/rustc-dev-guide#2095)
- Document compiletest directives `ignore-coverage-map` and `ignore-coverage-run` (rust-lang/rustc-dev-guide#2094)
- Purge `run-pass-valgrind` mentions (rust-lang/rustc-dev-guide#2091)
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fix conflicting link names that lead to the "chapter link" leading to rustdoc's source code instead.
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Rollup of 9 pull requests
Successful merges:
- #130991 (Vectorized SliceContains)
- #131928 (rustdoc: Document `markdown` module.)
- #131955 (Set `signext` or `zeroext` for integer arguments on RISC-V and LoongArch64)
- #131979 (Minor tweaks to `compare_impl_item.rs`)
- #132036 (Add a test case for #131164)
- #132039 (Specialize `read_exact` and `read_buf_exact` for `VecDeque`)
- #132060 ("innermost", "outermost", "leftmost", and "rightmost" don't need hyphens)
- #132065 (Clarify documentation of `ptr::dangling()` function)
- #132066 (Fix a typo in documentation of `pointer::sub_ptr()`)
r? `@ghost`
`@rustbot` modify labels: rollup
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These are all standard dictionary words and don't require hyphenation.
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Rollup of 3 pull requests
Successful merges:
- #131918 (coverage: Make counter creation handle node/edge counters more uniformly)
- #132021 (nuttx.md: typo)
- #132029 (Subtree update of `rust-analyzer`)
r? `@ghost`
`@rustbot` modify labels: rollup
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rust_for_linux: -Zregparm=<N> commandline flag for X86 (#116972)
Command line flag `-Zregparm=<N>` for X86 (32-bit) for rust-for-linux: https://github.com/rust-lang/rust/issues/116972
Implemented in the similar way as fastcall/vectorcall support (args are marked InReg if fit).
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Rollup of 7 pull requests
Successful merges:
- #130350 (stabilize Strict Provenance and Exposed Provenance APIs)
- #131737 (linkchecker: add a reminder on broken links to add new/renamed pages to `SUMMARY.md` for mdBooks)
- #131991 (test: Add test for trait in FQS cast, issue #98565)
- #131997 (Make `rustc_abi` compile on stable again)
- #131999 (Improve test coverage for `unit_bindings` lint)
- #132001 (fix coherence error for very large tuples™)
- #132003 (update ABI compatibility docs for new option-like rules)
r? `@ghost`
`@rustbot` modify labels: rollup
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stabilize Strict Provenance and Exposed Provenance APIs
Given that [RFC 3559](https://rust-lang.github.io/rfcs/3559-rust-has-provenance.html) has been accepted, t-lang has approved the concept of provenance to exist in the language. So I think it's time that we stabilize the strict provenance and exposed provenance APIs, and discuss provenance explicitly in the docs:
```rust
// core::ptr
pub const fn without_provenance<T>(addr: usize) -> *const T;
pub const fn dangling<T>() -> *const T;
pub const fn without_provenance_mut<T>(addr: usize) -> *mut T;
pub const fn dangling_mut<T>() -> *mut T;
pub fn with_exposed_provenance<T>(addr: usize) -> *const T;
pub fn with_exposed_provenance_mut<T>(addr: usize) -> *mut T;
impl<T: ?Sized> *const T {
pub fn addr(self) -> usize;
pub fn expose_provenance(self) -> usize;
pub fn with_addr(self, addr: usize) -> Self;
pub fn map_addr(self, f: impl FnOnce(usize) -> usize) -> Self;
}
impl<T: ?Sized> *mut T {
pub fn addr(self) -> usize;
pub fn expose_provenance(self) -> usize;
pub fn with_addr(self, addr: usize) -> Self;
pub fn map_addr(self, f: impl FnOnce(usize) -> usize) -> Self;
}
impl<T: ?Sized> NonNull<T> {
pub fn addr(self) -> NonZero<usize>;
pub fn with_addr(self, addr: NonZero<usize>) -> Self;
pub fn map_addr(self, f: impl FnOnce(NonZero<usize>) -> NonZero<usize>) -> Self;
}
```
I also did a pass over the docs to adjust them, because this is no longer an "experiment". The `ptr` docs now discuss the concept of provenance in general, and then they go into the two families of APIs for dealing with provenance: Strict Provenance and Exposed Provenance. I removed the discussion of how pointers also have an associated "address space" -- that is not actually tracked in the pointer value, it is tracked in the type, so IMO it just distracts from the core point of provenance. I also adjusted the docs for `with_exposed_provenance` to make it clear that we cannot guarantee much about this function, it's all best-effort.
There are two unstable lints associated with the strict_provenance feature gate; I moved them to a new [strict_provenance_lints](https://github.com/rust-lang/rust/issues/130351) feature since I didn't want this PR to have an even bigger FCP. ;)
`@rust-lang/opsem` Would be great to get some feedback on the docs here. :)
Nominating for `@rust-lang/libs-api.`
Part of https://github.com/rust-lang/rust/issues/95228.
[FCP comment](https://github.com/rust-lang/rust/pull/130350#issuecomment-2395114536)
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Revise arm platform notes regarding soft float
This PR updates the Arm microcontroller platform docs to recommend `-fpregs` instead of `+soft-float` as [discussed on Zulip](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.60-Ctarget-feature.3D.2Bsoft-float.60.20considered.20harmful)
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r=RalfJung
Finish stabilization of `result_ffi_guarantees`
The internal linting has been changed, so all that is left is making sure we stabilize what we want to stabilize.
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ci update freebsd version proposal, freebsd 12 being eol
raising to the lowest still active supported freebsd version.
From 13.1 (already eol too), freebsd introduces a cpu affinity layer
with linux. It also introduces a api compatible copy_file_range which
can be used like its linux's counterpart.
The former is essential to build https://github.com/rust-lang/rust/pull/120589, therefore breaks the backward
compatibility with the previous FreeBSD releases.
Blocked on https://github.com/rust-lang/rust/issues/130465
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Co-authored-by: Jubilee <workingjubilee@gmail.com>
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Add wasm32-unknown-emscripten platform support document
This PR adds the platform support document for wasm32-unknown-emscripten, and adds a warning about breaks in Emscripten ABI compatibility (see #131467).
I mostly based the document off the wasm32-unknown-unknown docs and some of the information may still be missing (e.g. who's the target maintainer) or outdated (e.g. the build requirements). I still hope that it provides a good starting point.
r? `@workingjubilee`
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Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
Co-authored-by: Alex Crichton <alex@alexcrichton.com>
Co-authored-by: Kleis Auke Wolthuizen <github@kleisauke.nl>
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Signed-off-by: Emmanuel Ferdman <emmanuelferdman@gmail.com>
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Co-authored-by: Jieyou Xu <39484203+jieyouxu@users.noreply.github.com>
Co-authored-by: Tbkhi <me.stole546@silomails.com>
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`asm!()` is forced to be wrapped inside unsafe. If there's no special
treatment, the label blocks would also always be unsafe with no way
of opting out.
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`ignore-coverage-run` (#2094)
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