maintain the given order on step execution
Previously step execution disregarded the CLI order and this change executes the given steps in the order specified on CLI.
For example, running `x $kind a b c` will execute `$kind` step for `a`, then `b`, then `c` crates in the specified order.
Fixes#126165
cc `@matthiaskrgr`
Previously step execution disregarded the CLI order and this change executes the given
steps in the order specified on CLI.
For example, running `x $kind a b c` will execute `$kind` step for `a`, then `b`, then `c` crates
in the specified order.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
bootstrap: open `llvm-config` as r+w
This previously failed on Windows and prevented building on Windows for compiler stuff because the `llvm-config` file was open as read-only.
Tested locally on a Windows machine.
Fixes#127849.
Prevent double reference in generic futex
In the Windows futex implementation we were a little lax at allowing references to references (i.e. `&&`) which can lead to deadlocks due to reading the wrong memory address. This uses a trait to tighten the constraints and ensure this doesn't happen.
r? libs
Make more Windows functions `#![deny(unsafe_op_in_unsafe_fn)]`
As part of #127747, I've evaluated some more Windows functions and added `unsafe` blocks where necessary. Some are just trivial wrappers that "inherit" the full unsafety of their function, but for others I've added some safety comments. A few functions weren't actually unsafe at all. I think they were just using `unsafe fn` to avoid an `unsafe {}` block.
I'm not touching `c.rs` yet because that is partially being addressed by another PR and also I have plans to further reduce the number of wrapper functions we have in there.
r? libs
Rollup of 9 pull requests
Successful merges:
- #125206 (Simplify environment variable examples)
- #126271 (Skip fast path for dec2flt when optimize_for_size)
- #126776 (Clean up more comments near use declarations)
- #127444 (`impl Send + Sync` and override `count` for the `CStr::bytes` iterator)
- #127512 (Terminate `--print link-args` output with newline)
- #127792 (std: Use `read_unaligned` for reads from DWARF)
- #127807 (Use futex.rs for Windows thread parking)
- #127833 (zkvm: add `#[forbid(unsafe_op_in_unsafe_fn)]` in `stdlib`)
- #127836 (std: Forbid unwrapped unsafe ops in xous and uefi modules)
Failed merges:
- #127813 (Prevent double reference in generic futex)
r? `@ghost`
`@rustbot` modify labels: rollup
zkvm: add `#[forbid(unsafe_op_in_unsafe_fn)]` in `stdlib`
This also adds an additional `unsafe` block to address compiler errors.
This PR is intended to address https://github.com/rust-lang/rust/issues/127747 for the zkvm target.
Use futex.rs for Windows thread parking
If I'm not overlooking anything then the Windows 10+ thread parking implementation is practically the same as the futex.rs implementation. So we may as well use the same implementation for both. The old version is still kept around for Windows 7 support.
r? ````@joboet```` if you wouldn't mind double checking I've not missed something
std: Use `read_unaligned` for reads from DWARF
There's a lot of... *stuff* going on here. Meanwhile, `read_unaligned` has been available since 1.17.0, so let's just use that.
Clean up more comments near use declarations
#125443 will reformat all use declarations in the repository. There are a few edge cases involving comments on use declarations that require care. This PR fixes them up so #125443 can go ahead with a simple `x fmt --all`. A follow-up to #126717.
r? ``@cuviper``
Skip fast path for dec2flt when optimize_for_size
Tracking issue: https://github.com/rust-lang/rust/issues/125612
Skip the fast algorithm when optimizing for size.
When compiling for https://github.com/quartiq/stabilizer I get these numbers:
Before
```
text data bss dec hex filename
192192 8 49424 241624 3afd8 dual-iir
```
After
```
text data bss dec hex filename
191632 8 49424 241064 3ada8 dual-iir
```
This saves 560 bytes.
Simplify environment variable examples
I’ve found myself visiting the documentation for `std::env::vars` every few months, and every time I do, it is because I want to quickly get a snippet to print out all environment variables :-)
So I think it could be nice to simplify the examples a little to make them self-contained. It is of course a style question if one should import a module a not, but I personally don’t import modules used just once in a code snippet.
Migrate `compiler-lookup-paths`, `dump-mono-stats` and `prune-link-args` `run-make` tests to `rmake` or `ui` format
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
try-job: x86_64-msvc
try-job: aarch64-apple
try-job: dist-x86_64-linux
try-job: armhf-gnu
When we do the big `use` reformatting there are a tiny number of cases
where rustfmt moves a comment from one `use` item to another in an
undesirable way. This commit pre-emptively rearranges things to prevent
this from happening.
There are some comments describing multiple subsequent `use` items. When
the big `use` reformatting happens some of these `use` items will be
reordered, possibly moving them away from the comment. With this
additional level of formatting it's not really feasible to have comments
of this type. This commit removes them in various ways:
- merging separate `use` items when appropriate;
- inserting blank lines between the comment and the first `use` item;
- outright deletion (for comments that are relatively low-value);
- adding a separate "top-level" comment.
We also entirely skip formatting for four library files that contain
nothing but `pub use` re-exports, where reordering would be painful.
Invert infer `error_reporting` mod struture
Parallel change to #127493, which moves `rustc_infer::infer::error_reporting` to `rustc_infer::error_reporting::infer`. After this, we should just be able to merge this into `rustc_trait_selection::error_reporting::infer`, and pull down `TypeErrCtxt` into that crate. 👍
r? lcnr
Promote the `wasm32-wasip2` target to Tier 2
This commit promotes the `wasm32-wasip2` Rust target to tier 2 as proposed in rust-lang/compiler-team#760. There are two major changes in this PR:
1. The `dist-various-2` container, which already produces the other WASI targets, now has an extra target added for `wasm32-wasip2`.
2. A new `wasm-component-ld` binary is added to all host toolchains when LLD is enabled. This is the linker used for the `wasm32-wasip2` target.
This new linker is added for all host toolchains to ensure that all host toolchains can produce the `wasm32-wasip2` target. This is similar to how `rust-lld` was originally included for all host toolchains to be able to produce WebAssembly output when the targets were first added. The new linker is developed [here][wasm-component-ld] and is pulled in via a crates.io-based dependency to the tree here.
[wasm-component-ld]: https://github.com/bytecodealliance/wasm-component-ld
Deny keyword lifetimes pre-expansion
https://github.com/rust-lang/rust/pull/126452#issuecomment-2179464266
> Secondly, we confirmed that we're OK with moving the validation of keywords in lifetimes to pre-expansion from post-expansion. We similarly consider this a bug fix. While the breakage of the convenience feature of the with_locals crate that relies on this is unfortunate, and we wish we had not overlooked this earlier for that reason, we're fortunate that the breakage is contained to only one crate, and we're going to accept this breakage as the extra complexity we'd need to carry in the compiler to work around this isn't deemed worth it.
T-lang considers it to be a bugfix to deny `'keyword` lifetimes in the parser, rather than during AST validation that only happens post-expansion. This has one breakage: https://github.com/rust-lang/rust/pull/126452#issuecomment-2171654756
This probably should get lang FCP'd just for consistency.
Delegation: support coercion for target expression
(solves https://github.com/rust-lang/rust/issues/118212#issuecomment-2160723092)
The implementation consist of 2 parts. Firstly, method call is generated instead of fully qualified call in AST->HIR lowering if there were no generic arguments or `Qpath` were provided. These restrictions are imposed due to the loss of information after desugaring. For example in
```rust
trait Trait {
fn foo(&self) {}
}
reuse <u8 as Trait>::foo;
```
We would like to generate such a code:
```rust
fn foo<u8: Trait>(x: &u8) {
x.foo(x)
}
```
however, the signature is inherited during HIR analysis where `u8` was discarded.
Then, we probe the single pre-resolved method.
P.S In the future, we would like to avoid restrictions on the callee path by `Self` autoref/autoderef in fully qualified calls, but at the moment it didn't work out.
r? `@petrochenkov`
Sync ar_archive_writer to LLVM 18.1.3
From LLVM 15.0.0-rc3. This adds support for COFF archives containing Arm64EC object files and has various fixes for AIX big archive files.
Migrate `std-core-cycle`, `obey-crate-type-flag`, `mixing-libs` and `issue-18943` `run-make` tests to `rmake.rs`
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
try-job: x86_64-apple-1
try-job: x86_64-msvc
try-job: aarch64-gnu
Rollup of 8 pull requests
Successful merges:
- #127669 (Fix the issue of invalid suggestion for a reference of iterator)
- #127707 (match lowering: Use an iterator to find `expand_until`)
- #127730 (Fix and enforce `unsafe_op_in_unsafe_fn` in compiler)
- #127789 (delete #![allow(unsafe_op_in_unsafe_fn)] in teeos)
- #127805 (run-make-support: update gimli to 0.31.0)
- #127808 (Make ErrorGuaranteed discoverable outside types, consts, and lifetimes)
- #127817 (Fix a bunch of sites that were walking instead of visiting, making it impossible for visitor impls to look at these values)
- #127818 (Various ast validation simplifications)
r? `@ghost`
`@rustbot` modify labels: rollup
Various ast validation simplifications
Changes pulled out of https://github.com/rust-lang/rust/pull/127524
These are needed to make ast validation a mutable visitor, as we can't keep immutable references to the AST around in that case. But I think they are simplifying things in general and can stand on their own
