Add `wasm_c_abi` `future-incompat` lint
This is a warning that will tell users to update to `wasm-bindgen` v0.2.88, which supports spec-compliant C ABI.
The idea is to prepare for a future where Rust will switch to the spec-compliant C ABI by default; so not to break everyone's world, this warning is introduced.
Addresses #71871.
Rollup of 7 pull requests
Successful merges:
- #122323 (configure.py: add flag for loongarch64 musl-root)
- #122372 (prevent notifying the same changes more than once)
- #122390 (Bump windows-bindgen to 0.55.0)
- #122401 (Check library crates for all tier 1 targets in PR CI)
- #122489 (Bump `cargo update` PR more often)
- #122583 (Use `UnsafeCell` for fast constant thread locals)
- #122590 (bootstrap: Don't name things copy that are not copies)
r? `@ghost`
`@rustbot` modify labels: rollup
bootstrap: Don't name things copy that are not copies
The bootstrap copy methods don't actually copy, they just hard link. Simply lying about it being "copying" can be very confusing! (ask me how I know!).
I'm not sure whether the name I chose is the ideal name, but it's definitely better than before.
Use `UnsafeCell` for fast constant thread locals
This uses `UnsafeCell` instead of `static mut` for fast constant thread locals. This changes the type of the TLS shims to return `&UnsafeCell<T>` instead of `*mut T` which means they are always non-null so LLVM can optimize away the check for `Some` in `LocalKey::with` if `T` has no destructor.
LLVM is currently unable to do this optimization as we lose the fact that `__getit` always returns `Some` as it gets optimized to just returning the value of the TLS shim.
Check library crates for all tier 1 targets in PR CI
Let's try checking all tier 1 targets. Shouldn't take much time.
Not sure if this is the right place to put it or not but let's see if it works first.
Bump windows-bindgen to 0.55.0
windows-bindgen is the crate used to generate std's Windows API bindings.
Not many changes for us, it's mostly just simplifying the generate code (e.g. no more `-> ()`). The one substantial change is some structs now use `i8` byte arrays instead of `u8`. However, this only impacts one test.
prevent notifying the same changes more than once
Prevents re-reporting of previously notified changes by using the .last-warned-change-id value for change detection.
Resolves#122344
Subtree sync for rustc_codegen_cranelift
The main highlight this time is a fix for a recently introduced ICE.
Fixes https://github.com/rust-lang/rust/issues/122399
r? `@ghost`
`@rustbot` label +A-codegen +A-cranelift +T-compiler
fix: incorrect handling of `use` and panic issue in `extract_module`.
fix#16826
This PR includes the following changes:
1. Simplify the implementation partially, removing many unnecessary loops and `clone()`.
2. When it is found that the top level of the selection contains a `use` statement, a copy of the `use` will be reinserted before extraction. (#16826)
3. Fixed an issue during `extract_module`, where if the top level of the selected part contains `A` and `use A::B`, it caused a duplication of `use A`.
fix: Fix wrong where clause rendering on hover
We were not accounting for proper newline indentation in some places making the hover look weird (or just straight up wrong for type aliases)
The bootstrap copy methods don't actually copy, they just hard link.
Simply lying about it being "copying" can be very confusing! (ask me how
I know!).
[BOLT] Use CDSort and CDSplit
CDSort and CDSplit are the most recent versions of function ordering and function splitting algorithms with some improvements over the previous baseline (ext-tsp and two-way splitting).
Bump follow-redirects from 1.15.4 to 1.15.6 in /editors/code
Bumps [follow-redirects](https://github.com/follow-redirects/follow-redirects) from 1.15.4 to 1.15.6.
<details>
<summary>Commits</summary>
<ul>
<li><a href="35a517c586"><code>35a517c</code></a> Release version 1.15.6 of the npm package.</li>
<li><a href="c4f847f851"><code>c4f847f</code></a> Drop Proxy-Authorization across hosts.</li>
<li><a href="8526b4a1b2"><code>8526b4a</code></a> Use GitHub for disclosure.</li>
<li><a href="b1677ce001"><code>b1677ce</code></a> Release version 1.15.5 of the npm package.</li>
<li><a href="d8914f7982"><code>d8914f7</code></a> Preserve fragment in responseUrl.</li>
<li>See full diff in <a href="https://github.com/follow-redirects/follow-redirects/compare/v1.15.4...v1.15.6">compare view</a></li>
</ul>
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Stop walking the bodies of statics for reachability, and evaluate them instead
cc `@saethlin` `@RalfJung`
cc #119214
This reuses the `DefIdVisitor` from `rustc_privacy`, because they basically try to do the same thing.
This PR's changes can probably be extended to constants, too, but let's tackle that separately, it's likely more involved.
`f16` and `f128` step 3: compiler support & feature gate
Continuation of https://github.com/rust-lang/rust/pull/121841, another portion of https://github.com/rust-lang/rust/pull/114607
This PR exposes the new types to the world and adds a feature gate. Marking this as a draft because I need some feedback on where I did the feature gate check. It also does not yet catch type via suffixed literals (so the feature gate test will fail, probably some others too because I haven't belssed).
If there is a better place to check all types after resolution, I can do that. If not, I figure maybe I can add a second gate location in AST when it checks numeric suffixes.
Unfortunately I still don't think there is much testing to be done for correctness (codegen tests or parsed value checks) until we have basic library support. I think that will be the next step.
Tracking issue: https://github.com/rust-lang/rust/issues/116909
r? `@compiler-errors`
cc `@Nilstrieb`
`@rustbot` label +F-f16_and_f128
Update cargo
6 commits in 7065f0ef4aa267a7455e1c478b5ccacb7baea59c..2fe739fcf16c5bf8c2064ab9d357f4a0e6c8539b
2024-03-12 13:25:15 +0000 to 2024-03-15 21:39:18 +0000
- feat: Add 'open-namespaces' feature (rust-lang/cargo#13591)
- refactor: Expose source/spans to Manifest for emitting lints (rust-lang/cargo#13593)
- feat(tree): Control `--charset` via auto-detecting config value (rust-lang/cargo#13337)
- refactor(toml): Flatten manifest parsing (rust-lang/cargo#13589)
- fix: strip feature dep when dep is dev dep (rust-lang/cargo#13518)
- fix(ci): bump check error when PR is behind master (rust-lang/cargo#13581)
r? ghost
The bad-alloc installer was incorrectly asserting that the other handler
isn't set yet, instead of checking its own, but we can avoid that by
changing the order we install them.
Ref: https://github.com/llvm/llvm-project/issues/83040
LLVM's default bad-alloc handler may throw if exceptions are enabled,
and `operator new` isn't hooked at all by default. Now we register our
own handler that prints a message similar to fatal errors, then aborts.
We also call the function that registers the C++ `std::new_handler`.
Adding support of quirky filesystems occuring in virtualised settings not
having full POSIX support for memory mapped files. Example: current virtiofs
with cache disabled, occuring in Incus/LXD or Kata Containers. Has been
hitting various virtualised filesystems since 2016, depending on their levels
of maturity at the time. The situation will perhaps improve when virtiofs DAX
support patches will have made it into the qemu mainline.
On a reliability level, using the MAP_PRIVATE sycall flag instead of the
MAP_SHARED syscall flag for the mmap() system call does have some undefined
behaviour when the caller update the memory mapping of the mmap()ed file, but
MAP_SHARED does allow not only the calling process but other processes to
modify the memory mapping. Thus, in the current context, using MAP_PRIVATE
copy-on-write is marginally more reliable than MAP_SHARED.
This discussion of reliability is orthogonal to the type system enforced safety
policy of rust, which does not claim to handle memory modification of memory
mapped files triggered through the operating system and not the running rust
process.
