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Like the other CStr and CString error types, make a re-export for
std::ffi::FromBytesUntilNulError.
This seems to have slipped through the cracks in the
cstr_from_bytes_until_nul implementation and core_c_str migration.
Tracking Issue: #95027
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update ancient note
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Adjustments for RustyHermit
The interface between `libstd` and the OS changed and some changes are not correctly merged for RustHermit. For instance, the crate `hermit_abi` isn't defined as public, although it provided the socket interface for the application.
In addition, the support of thread::available_parallelism is realized. It returns the number of available processors.
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See https://github.com/rust-lang/rust/pull/113618#pullrequestreview-1526295432
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0.3.0 and 0.3.1 have an issue and will be yanked. Consequently, std
should switch to 0.3.2.
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It's exported publicly, so it should not be linted.
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On RustyHermit, the function `get_processor_count` returns the
number of activated processors.
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Add back BorrowedBuf::filled_mut
This is useful if you want to do some processing on the bytes while still using the BorrowedBuf.
The API was removed in https://github.com/rust-lang/rust/pull/97015 with no explanation. The RFC also has it as part of its API, so this just seems like a mistake: [RFC](https://rust-lang.github.io/rfcs/2930-read-buf.html#:~:text=inline%5D%0A%20%20%20%20pub%20fn-,filled_mut,-(%26mut%20self))
ACP: https://github.com/rust-lang/libs-team/issues/139
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See https://cs.android.com/android/platform/superproject/+/master:bionic/libc/include/sys/stat.h
for reference.
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Add `Read`, `Write` and `Seek` impls for `Arc<File>` where appropriate
If `&T` implements these traits, `Arc<T>` has no reason not to do so
either. This is useful for operating system handles like `File` or
`TcpStream` which don't need a mutable reference to implement these
traits.
CC #53835.
CC #94744.
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move personality to sys
this moves `personality` to sys, removing another PAL exception
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move pal cfgs in f32 and f64 to sys
I'd like to push forward on `sys` being a separate crate. To start with, most of these PAL exception cases are very simple little bits of code like this, so I thought I would try tidying them up.
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- copying from `&[u8]` and `VecDeque<u8>`
- copying to `Vec<u8>`
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This extends #109698 to allow no-cost conversion between `Vec<u8>` and `OsString`
as suggested in feedback from `os_str_bytes` crate in #111544.
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Fix incorrect documented default bufsize in bufreader/writer
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Update compiler builtins
cc https://github.com/rust-lang/compiler-builtins/pull/532#discussion_r1249354225
in particular this pulls in https://github.com/rust-lang/compiler-builtins/pull/532 and https://github.com/rust-lang/compiler-builtins/pull/535.
Fixes https://github.com/rust-lang/rust/issues/93166. Fixes https://github.com/rust-lang/git2-rs/issues/706. Fixes https://github.com/rust-lang/rust/issues/109064. Fixes https://github.com/rust-lang/wg-cargo-std-aware/issues/74.
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Revert the lexing of `c"…"` string literals
Fixes \[after beta-backport\] #113235.
Further progress is tracked in #113333.
This PR *manually* reverts parts of #108801 (since a git-revert would've been too coarse-grained & messy)
and git-reverts #111647.
CC `@fee1-dead` (#108801) `@klensy` (#111647)
r? `@compiler-errors`
`@rustbot` label F-c_str_literals beta-nominated
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This pulls in the new `outline-atomics` intrinsics.
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This reverts commit f212ba6d6d60963c8101bb24fc3e53fca80c046f.
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This reverts commit 2f459f7f140307b5abbb7ea81440ed1843b490e7.
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Return `Ok` on kill if process has already exited
This will require an FCP from `@rust-lang/libs-api.`
Fixes #112423. See that issue for more details.
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Dedup addr2line, miniz_oxide, object in .lock
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The outline-atomics support in compiler_builtins messed up and wasn't limited to linux only.
https://github.com/rust-lang/compiler-builtins/pull/532/files#r1249354225
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std docs: factorize literal in Barrier example
Motivated by https://www.reddit.com/r/rust/comments/rnh5hu/barrier_question_barrier_does_not_sync_many/ (but maybe not worth it?)
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`Path::with_extension` used to reallocate (and copy) paths twice per
call, now it does it once, by checking the size of the previous and new
extensions it's possible to call `PathBuf::with_capacity` and pass the
exact capacity it takes.
Also reduce the memory consumption of the path returned from
`Path::with_extension` by using exact capacity instead of using
amortized exponential growth.
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Signed-off-by: Yuki Okushi <jtitor@2k36.org>
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Move windows-sys arm32 shim to c.rs
This moves the arm32 shim in to c.rs instead of appending to the generated file itself.
This makes it simpler to change these workarounds if/when needed. The downside is we need to exclude a couple of functions from being generated (see the comment). A metadata solution could help here but they'll be easy enough to add back if that happens.
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Remove unnecessary `path` attribute
Follow up to #111401. I missed this at the time but it should now be totally unnecessary since the other include was removed.
r? `@workingjubilee`
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Expose `compiler-builtins-weak-intrinsics` feature for `-Zbuild-std`
This was added in rust-lang/compiler-builtins#526 to force all compiler-builtins intrinsics to use weak linkage.
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DirEntry::file_name: improve explanation
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Bump compiler_builtins
Actually closes https://github.com/rust-lang/rust/issues/108489.
Note that the example code given [in compiler_builtins](https://github.com/rust-lang/compiler-builtins/pull/527) doesn't compile on current rustc since we're still waiting for https://reviews.llvm.org/D153197 (aka `LLVM ERROR: Expected a constant shift amount!`), but it's a step forward anyway.
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Implement `Sync` for `mpsc::Sender`
`mpsc::Sender` is currently `!Sync` because the previous implementation contained an optimization where the channel started out as single-producer and was dynamically upgraded on the first clone, which relied on a unique reference to the sender. This optimization is one of the main reasons the old implementation was so complex and was removed in #93563. `mpsc::Sender` can now soundly implement `Sync`.
Note for any potential confusion, this chance does *not* add MPMC behavior. This only affects the already `Send + Clone` *sender*, not *receiver*.
It's technically possible to rely on the `!Sync` behavior in the same way as a `PhantomData<*mut T>`, but that seems very unlikely in practice. Either way, this change is insta-stable and needs an FCP.
`@rustbot` label +T-libs-api -T-libs
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If `&T` implements these traits, `Arc<T>` has no reason not to do so
either. This is useful for operating system handles like `File` or
`TcpStream` which don't need a mutable reference to implement these
traits.
CC #53835.
CC #94744.
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This reduces code duplication.
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This was added in rust-lang/compiler-builtins#526 to force all
compiler-builtins intrinsics to use weak linkage.
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