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Enable reproducible-build-2 for Windows MSVC
Works with MSVC if instructing the linker to avoid timestamps and deleting the PDB between compilations.
Addresses item in rust-lang/rust#128602
---
try-job: x86_64-mingw-*
try-job: x86_64-msvc-*
try-job: i686-msvc-*
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[win][aarch64] Fix linking statics on Arm64EC, take 2
Arm64EC builds recently started to fail due to the linker not finding a symbol:
```
symbols.o : error LNK2001: unresolved external symbol #_ZN3std9panicking11EMPTY_PANIC17hc8d2b903527827f1E (EC Symbol)
C:\Code\hello-world\target\arm64ec-pc-windows-msvc\debug\deps\hello_world.exe : fatal error LNK1120: 1 unresolved externals
```
It turns out that `EMPTY_PANIC` is a new static variable that was being exported then imported from the standard library, but when exporting LLVM didn't prepend the name with `#` (as only functions are prefixed with this character), whereas Rust was prefixing with `#` when attempting to import it.
The fix is to have Rust not prefix statics with `#` when importing.
Adding tests discovered another issue: we need to correctly mark static exported from dylibs with `DATA`, otherwise MSVC's linker assumes they are functions and complains that there is no exit thunk for them.
Fixes rust-lang/rust#138541
Resurrects rust-lang/rust#140176 now that rust-lang/rust#141061 is merged, which removes the incompatibility with `__rust_no_alloc_shim_is_unstable`.
r? ``@wesleywiser``
CC ``@bjorn3``
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Remove the deprecated unstable `concat_idents!` macro
In [rust-lang/rust#137653], the lang and libs-API teams did a joint FCP to deprecate
and eventually remove the long-unstable `concat_idents!` macro. The
deprecation is landing in 1.88, so do the removal here (target version
1.90).
This macro has been superseded by the more recent `${concat(...)}`
metavariable expression language feature, which avoids some of the
limitations of `concat_idents!`. The metavar expression is unstably
available under the [`macro_metavar_expr_concat`] feature.
History is mildly interesting here: `concat_idents!` goes back to 2011
when it was introduced with 513276e595f8 ("Add #concat_idents[] and
#ident_to_str[]"). The syntax looks a bit different but it still works
about the same:
let asdf_fdsa = "<.<";
assert(#concat_idents[asd,f_f,dsa] == "<.<");
assert(#ident_to_str[use_mention_distinction]
== "use_mention_distinction");
(That test existed from introduction until its removal here.)
Closes: https://github.com/rust-lang/rust/issues/29599
[rust-lang/rust#137653]: https://github.com/rust-lang/rust/pull/137653
[`macro_metavar_expr_concat`]: https://github.com/rust-lang/rust/issues/124225
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Allow comparisons between `CStr`, `CString`, and `Cow<CStr>`.
Closes: #137265
This PR adds the trait implementations proposed in the [ACP](https://github.com/rust-lang/libs-team/issues/517/) under the `c_string_eq_c_str` feature gate:
```rust
// core::ffi
impl PartialEq<&Self> for CStr;
impl PartialEq<CString> for CStr;
impl PartialEq<Cow<'_, Self>> for CStr;
// alloc::ffi
impl PartialEq<CStr> for CString;
impl PartialEq<&CStr> for CString;
impl PartialEq<Cow<'_, CStr>> for CString;
// alloc::borrow
impl PartialEq<CStr> for Cow<'_, CStr>;
impl PartialEq<&CStr> for Cow<'_, CStr>;
impl PartialEq<CString> for Cow<'_, CStr>;
```
As I understand it, stable traits cannot be unstably implemented for stable types, and we would thereby be forced to skip the FCP and directly stabilise these implementations (as is done in this PR).
(`@joshtriplett` mentioned that Crater may have to be run).
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Also avoid creating and cloning sysroot unnecessarily.
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sync_cg_clif-2025-06-24
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In [137653], the lang and libs-API teams did a joint FCP to deprecate
and eventually remove the long-unstable `concat_idents!` macro. The
deprecation is landing in 1.88, so do the removal here (target version
1.90).
This macro has been superseded by the more recent `${concat(...)}`
metavariable expression language feature, which avoids some of the
limitations of `concat_idents!`. The metavar expression is unstably
available under the [`macro_metavar_expr_concat`] feature.
History is mildly interesting here: `concat_idents!` goes back to 2011
when it was introduced with 513276e595f8 ("Add #concat_idents[] and
about the same:
let asdf_fdsa = "<.<";
assert(#concat_idents[asd,f_f,dsa] == "<.<");
assert(#ident_to_str[use_mention_distinction]
== "use_mention_distinction");
(That test existed from introduction until its removal here.)
Closes: https://www.github.com/rust-lang/rust/issues/29599
[137653]: https://www.github.com/rust-lang/rust/pull/137653
[`macro_metavar_expr_concat`]: https://www.github.com/rust-lang/rust/issues/124225
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These tests were updated in the previous commit; while they are being
cleaned up, move them to a non-issue directory.
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`concat_idents!` is in the process of being removed, but a few things it
is used to test will still be relevant. Migrate these tests to something
other than `concat_idents`.
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#140005 (Set MSG_NOSIGNAL for UnixStream)
- rust-lang/rust#140622 (compiletest: Improve diagnostics for line annotation mismatches)
- rust-lang/rust#142354 (Fixes firefox copy paste issue)
- rust-lang/rust#142695 (Port `#[rustc_skip_during_method_dispatch]` to the new attribute system)
- rust-lang/rust#142779 (Add note about `str::split` handling of no matches.)
- rust-lang/rust#142894 (phantom_variance_markers: fix identifier usage in macro)
- rust-lang/rust#142928 (Fix hang in --print=file-names in bootstrap)
- rust-lang/rust#142932 (rustdoc-json: Keep empty generic args if parenthesized)
- rust-lang/rust#142933 (Simplify root goal API of solver a bit)
r? `@ghost`
`@rustbot` modify labels: rollup
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main.createCommands instead
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Simplify root goal API of solver a bit
Root goal API is more easily distinguished between proof tree and non-proof tree, rather than `eval_goal` vs `eval_goal_raw`.
r? lcnr
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rustdoc-json: Keep empty generic args if parenthesized
Because in the case of for example
pub fn my_fn3(f: impl FnMut()) {}
we want to keep `()` even if it is empty since that matches e.g. Rust syntax requirements.
This is an amendment to https://github.com/rust-lang/rust/pull/142502, so:
r? ``@aDotInTheVoid``
cc ``@nnethercote``
cc https://github.com/cargo-public-api/cargo-public-api/pull/798
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Fix hang in --print=file-names in bootstrap
In an interactive context, the subprocess inherited a real tty stdin, which lead it it waiting for something to happen, even though nothing happened. By explicitly passing null as stdin we make sure an empty file is passed, which achieves the desired behavior.
Fixes rust-lang/rust#142926 (verified locally by cherry-picking the patch onto beta where I was building).
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phantom_variance_markers: fix identifier usage in macro
This shouldn't have worked originally, as far as we can tell.
Fixes an implementation detail of rust-lang/rust#135806.
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Add note about `str::split` handling of no matches.
Adds small note and example to the test for a non matching pattern
resolves rust-lang/rust#142734
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GrigorenkoPV:attributes/rustc_skip_during_method_dispatch, r=jdonszelmann
Port `#[rustc_skip_during_method_dispatch]` to the new attribute system
Part of rust-lang/rust#131229
r? ``@jdonszelmann``
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Fixes firefox copy paste issue
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compiletest: Improve diagnostics for line annotation mismatches
When some line annotations are missing or misplaced, compiletest reports an error, but the error is not very convenient.
This PR attempts to improve the user experience.
- The "expected ... not found" messages are no longer duplicated.
- The `proc_res.status` and `proc_res.cmdline` message is no longer put in the middle of other messages describing the annotation mismatches, it's now put into the end.
- Compiletest now makes suggestions if there are fuzzy matches between expected and actually reported errors (e.g. the annotation is put on a wrong line).
- Missing diagnostic kinds are no longer produce an error eagerly, but instead treated as always mismatching kinds, so they can produce suggestions telling the right kind.
I'll post screenshots in the thread below, but the behavior shown on the screenshots can be reproduced locally using the new test `tests/ui/compiletest-self-test/line-annotation-mismatches.rs`.
This also fixes https://github.com/rust-lang/rust/issues/140940.
r? ``@jieyouxu``
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Set MSG_NOSIGNAL for UnixStream
https://github.com/rust-lang/rust/issues/139956
Same logic as for https://github.com/rust-lang/rust/blob/1f76d219c906f0112bb1872f33aa977164c53fa6/library/std/src/sys/net/connection/socket.rs#L399-L405.
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cg_llvm likely just optimizes out their references for these tests, but
cg_clif doesn't and would thus give a linker error.
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While cg_llvm is very lax about mismatched function signatures, cg_clif
will crash when there is any mismatch. It could be turned into an error,
but without Cranelift changes can't just be ignored.
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Ensure rustc_codegen_cranelift doesn't get normalized to rustc. And
handle -Cpanic=abort.
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`tt` should match more, so use this for both missing and invalid
fragment specifiers.
Also remove one unneeded instance of `String`.
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Since [1], the fragment specifier is unconditionally required in all
editions. This means `NonTerminalKind` no longer needs to be optional,
as we can reject this code during the expansion of `macro_rules!` rather
than handling it throughout the code. Do this cleanup here.
[1]: https://github.com/rust-lang/rust/pull/128425
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Non-functional change to simplify control flow.
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Update to literal-escaper 0.0.4
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Cleanup `folding_ranges` and support more things
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fix: In "Wrap return type" assist, don't wrap exit points if they already have the right type
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Document sysroot_project field in rust-project.json
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Account for beta revisions when normalizing versions
Several UI tests have a `normalize-stderr` for "you are using x.y.z"
rustc versions, and that regex is flexible enough for suffixes like
"-nightly" and "-dev", but not for "-beta.N". We can just add '.' to
that trailing pattern to include this.
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Do not default to 'static for trait object lifetimes
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We lack trait object default lifetime elision, so `'static` can be wrong at times, confusing the user
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minor: Don't run doctests
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fix: Respect `.cargo/config.toml` `build.target-dir`
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To make it match `-Zmacro-stats`, and work better if you have enabled it
for multiple crates.
- Print each crate's name.
- Print a `===` banner at the start and end for separation.
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Currently they have the largest items at the end. I believe the
rationale is that it saves you scrolling up through terminal output
because the important stuff is at the bottom. But it's also surprising
and a bit confusing, and I think the obvious order (big things at the
top) is better.
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Taking inspiration from `-Zmacro-stats`:
- Use "{prefix}" consistently.
- Use names for column widths.
- Write output in a single `eprint!` call, in an attempt to minimize
interleaving of output from different rustc processes.
- Use `repeat` for the long `---` banners.
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#140985 (Change `core::iter::Fuse`'s `Default` impl to do what its docs say it does)
- rust-lang/rust#141324 (std: sys: random: uefi: Provide rdrand based fallback)
- rust-lang/rust#142134 (Reject unsupported `extern "{abi}"`s consistently in all positions)
- rust-lang/rust#142784 (Add codegen timing section)
- rust-lang/rust#142827 (Move error code explanation removal check into tidy)
- rust-lang/rust#142873 (Don't suggest changing a method inside a expansion)
- rust-lang/rust#142908 (Fix install-template.sh for Solaris tr)
- rust-lang/rust#142922 (Fix comment on NoMangle)
- rust-lang/rust#142923 (fix `-Zmin-function-alignment` on functions without attributes)
r? `@ghost`
`@rustbot` modify labels: rollup
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It currently reports net size, i.e. size(output) - size(input). After
some use I think this is sub-optimal, and it's better to just report
size(output). Because for derive macros the input size is always 1, and
for attribute macros it's almost always 1.
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