Fixed pthread_getname_np impl for glibc
The behavior of `glibc` differs a bit different for `pthread_getname_np` from other implementations. It requires the buffer to be at least 16 bytes wide without exception.
[Docs](https://www.man7.org/linux/man-pages/man3/pthread_setname_np.3.html):
```
The pthread_getname_np() function can be used to retrieve the
name of the thread. The thread argument specifies the thread
whose name is to be retrieved. The buffer name is used to return
the thread name; size specifies the number of bytes available in
name. The buffer specified by name should be at least 16
characters in length. The returned thread name in the output
buffer will be null terminated.
```
[Source](https://sourceware.org/git/?p=glibc.git;a=blob;f=nptl/pthread_getname.c;hb=dff8da6b3e89b986bb7f6b1ec18cf65d5972e307#l37):
```c
int
__pthread_getname_np (pthread_t th, char *buf, size_t len)
{
const struct pthread *pd = (const struct pthread *) th;
/* Unfortunately the kernel headers do not export the TASK_COMM_LEN
macro. So we have to define it here. */
#define TASK_COMM_LEN 16
if (len < TASK_COMM_LEN)
return ERANGE;
```
lsp: fix completion_item something_to_resolve not being a latch to true
while looking at #18245 i noticed that `something_to_resolve` could technically flap between true -> false if some subsequent fields that were requested to be resolved were empty.
this fixes that by using `|=` instead of `=` when assigning to `something_to_resolve` which will prevent it from going back to false once set.
although some cases it's simply assigning to `true` i opted to continue to use `|=` there for uniformity sake. but happy to change those back to `=`'s.
cc `@SomeoneToIgnore`
This adds the "reference" compiletest header so that the Rust reference
can add annotations to the test suite in order to link tests to
individual rules in the reference.
Tooling in the reference repo will be responsible for collecting these
annotations and linking to the tests.
More details are in MCP 783: https://github.com/rust-lang/compiler-team/issues/783
Rename directive `needs-profiler-support` to `needs-profiler-runtime`
The rest of the compiler mostly refers to this as `profiler_runtime`, so having a directive named `needs-profiler-support` was causing a lot of confusion.
r? jieyouxu
hir-ty: change struct + enum variant constructor formatting.
before, when formatting struct constructor for `struct S(usize, usize)` it would format as:
extern "rust-call" S(usize, usize) -> S
but after this change, we'll format as:
fn S(usize, usize) -> S
likewise the second commit, also makes this uniform for enum variants as well.
fixes#18259
Update cargo
8 commits in ad074abe3a18ce8444c06f962ceecfd056acfc73..15fbd2f607d4defc87053b8b76bf5038f2483cf4
2024-10-04 18:18:15 +0000 to 2024-10-08 21:08:11 +0000
- initial version of checksum based freshness (rust-lang/cargo#14137)
- feat: Add custom completer for completing registry name (rust-lang/cargo#14656)
- Document build-plan as being deprecated (rust-lang/cargo#14657)
- fix(complete): Don't complete files for any value (rust-lang/cargo#14653)
- Add more SAT resolver tests (rust-lang/cargo#14614)
- fix: avoid inserting duplicate `dylib_path_envvar` when calling `cargo run` recursively (rust-lang/cargo#14464)
- chore(deps): bump gix-path from 0.10.9 to 0.10.11 (rust-lang/cargo#14489)
- improve error reporting when feature not found in `activated_features` (rust-lang/cargo#14647)
---
This also adds three license exceptions to Cargo.
* arrayref — BSD-2-Clause
* blake3 — CC0-1.0 OR Apache-2.0 OR Apache-2.0 WITH LLVM-exception
* constant_time_eq — CC0-1.0 OR MIT-0 OR Apache-2.0
These exceptions were added to rustc in rust-lang/rust#126930, so should be fine for Cargo as well.
Check for needless raw strings in `format_args!()` template as well
changelog: [`needless_raw_strings`, `needless_raw_string_hashes`]: check `format_args!()` template as well
Fix#13503
Without this change, the markdown-style backticks are treated as a shell
command substitution, which fails like so:
/checkout/src/ci/run.sh: line 58: DISABLE_CI_RUSTC_IF_INCOMPATIBLE: command not found
debug: configured.
This also adds three license exceptions to Cargo.
* arrayref — BSD-2-Clause
* blake3 — CC0-1.0 OR Apache-2.0 OR Apache-2.0 WITH LLVM-exception
* constant_time_eq — CC0-1.0 OR MIT-0 OR Apache-2.0
These exceptions were added to rustc in rust-lang/rust#126930,
so should be fine for Cargo as well.
Prevent building cargo from invalidating build cache of other tools due to conditionally applied `-Zon-broken-pipe=kill` via tracked `RUSTFLAGS`
This PR fixes#130980 where building cargo invalidated the tool build caches of other tools (such as rustdoc) because `-Zon-broken-pipe=kill` was conditionally passed via `RUSTFLAGS` for other tools *except* for cargo. The differing `RUSTFLAGS` triggered tool build cache invalidation as `RUSTFLAGS` is a tracked env var -- any changes in `RUSTFLAGS` requires a rebuild.
`-Zon-broken-pipe=kill` is load-bearing for rustc and rustdoc to not ICE on broken pipes due to usages of raw std `println!` that panics without the flag being set, which manifests in ICEs.
I can't say I like the changes here, but it is what it is...
See detailed discussions and history of `-Zon-broken-pipe=kill` usage in https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Internal.20lint.20for.20raw.20.60print!.60.20and.20.60println!.60.3F/near/474593815.
## Approach
This PR fixes the tool build cache invalidation by informing the `rustc` binary shim when to apply `-Zon-broken-pipe=kill` (i.e. when the rustc binary shim is not used to build cargo). This information is not communicated by `RUSTFLAGS`, which is an env var tracked by cargo, and instead uses an untracked env var `UNTRACKED_BROKEN_PIPE_FLAG` so we won't trigger tool build cache invalidation. We preserve bootstrap's behavior of not setting that flag for cargo by conditionally omitting setting `UNTRACKED_BROKEN_PIPE_FLAG` when building cargo.
Notably, the `-Zon-broken-pipe=kill` instance in 1e5719bdc4/src/bootstrap/src/core/build_steps/compile.rs (L1058) is not modified because that is used to build rustc only and not cargo itself.
Thanks to `@cuviper` for the idea!
## Testing
### Integration testing
This PR introduces a run-make test for rustc and rustdoc that checks that when they do not ICE/panic when they encounter a broken pipe of the stdout stream.
I checked this test will catch the broken pipe ICE regression for rustc on Linux (at least) by commenting out 1e5719bdc4/src/bootstrap/src/core/build_steps/compile.rs (L1058), and the test failed because rustc ICE'd.
### Manual testing
I have manually tried:
1. `./x clean && `./x test build --stage 1` -> `rustc +stage1 --print=sysroot | false`: no ICE.
2. `./x clean` -> `./x test run-make` twice: no stage 1 cargo rebuilds.
3. `./x clean` -> `./x build rustdoc` -> `rustdoc +stage1 --version | false`: no panics.
4. `./x test src/tools/cargo`: tests pass, notably `build::close_output` and `cargo_command::closed_output_ok` do not fail which would fail if cargo was built with `-Zon-broken-pipe=kill`.
## Related discussions
Thanks to everyone who helped!
- https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/Applying.20.60-Zon-broken-pipe.3Dkill.60.20flags.20in.20bootstrap.3F
- https://rust-lang.zulipchat.com/#narrow/stream/326414-t-infra.2Fbootstrap/topic/Modifying.20run-make.20tests.20unnecessarily.20rebuild.20stage.201.20.2E.2E.2E
- https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/Internal.20lint.20for.20raw.20.60print!.60.20and.20.60println!.60.3F
Fixes https://github.com/rust-lang/rust/issues/130980
Closes https://github.com/rust-lang/rust/issues/131059
---
try-job: aarch64-apple
try-job: x86_64-msvc
try-job: x86_64-mingw
Simplify the compiletest directives for ignoring coverage-test modes
Follow-up to #131346.
Given that these directives are now restricted to ignoring coverage-test modes only, we can drop the clunky `ignore-mode-*` naming convention, and just call them `ignore-coverage-map` and `ignore-coverage-run`.
r? jieyouxu
