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Author SHA1 Message Date
Stuart Cook 0dbd8e68b1 Rollup merge of #146051 - LorrensP-2158466:miri-libstd-fix, r=RalfJung 
Change std f32 test to pass under Miri

Adds `APPROX_DELTA` to 2 tests of `f32::log` reported in [#miri > Miri test-libstd Failure (2025-08)](https://rust-lang.zulipchat.com/#narrow/channel/269128-miri/topic/Miri.20test-libstd.20Failure.20.282025-08.29).

I changed 2 lines, the first one is the actual failure. The second one is precautionary.
 2025-09-01 12:42:28 +10:00
joboet 6d8d952e48 std: fix SplitPaths regression 2025-08-31 13:46:52 +02:00
LorrensP-2158466 cfba491e67 fix 2025-08-31 10:03:49 +02:00
Trevor Gross b86c601a71 Rollup merge of #146030 - ChrisDenton:wait-timeout, r=tgross35 
Fix `sys::process::windows::tests::test_thread_handle` spurious failure

Instead of sleeping, wait for the process to finish so that we can be sure it's done. We use a timeout because otherwise this test can be stuck indefinitely if it fails (unfortunately std doesn't currently have a way to wait with a timeout so a manual OS API call is necessary).

I also changed the test to run `whoami` and pipe the output to null so that it doesn't clutter up the test output.

Fixes rust-lang/rust#146024
 2025-08-30 18:49:49 -05:00
Trevor Gross 9489339118 Rollup merge of #144964 - 0xdeafbeef:fix-open-options, r=ibraheemdev 
std: clarify `OpenOptions` error for create without write access

Fixes rust-lang/rust#140621
 2025-08-30 18:49:48 -05:00
Chris Denton 3516e25eed Fix spurious test timeout 2025-08-30 18:07:09 +00:00
Vladimir Petrzhikovskii 0858b14e25 std: clarify OpenOptions error for create without write access 
Previously, attempting to create/truncate a file without write/append access
would result in platform-specific error messages:
 - Unix: "Invalid argument"
 - Windows: raw OS error code 87
These error codes look like system errors, which could waste hours 
of debugging for what is actually an API misuse issue.
 2025-08-30 14:59:17 +02:00
Stuart Cook eda6dc9283 Rollup merge of #144651 - connortsui20:nonpoison_condvar, r=joboet 
Implementation: `#[feature(nonpoison_condvar)]`

Tracking Issue: https://github.com/rust-lang/rust/issues/134645

This PR continues the effort made in https://github.com/rust-lang/rust/pull/144022 by adding the implementation of `nonpoison::condvar`.

Many of the changes here are similar to the changes made to implement `nonpoison::mutex`.

There are two other changes here. The first is that the `Barrier` implementation is migrated to use the `nonpoison::Condvar` instead of the `poison` variant. The second (which might be subject to some discussion) is that `WaitTimeoutResult` is moved up to `mod.rs`, as both `condvar` variants need that type (and I do not know if there is a better place to put it now).

### Related PRs

- `nonpoison_rwlock` implementation: https://github.com/rust-lang/rust/pull/144648
- `nonpoison_once` implementation: https://github.com/rust-lang/rust/pull/144653
 2025-08-30 20:29:06 +10:00
Stuart Cook 6421031e57 Rollup merge of #143462 - Rudxain:read_to_string_usize, r=joboet 
fix(lib-std-fs): handle `usize` overflow in `read*`

I assume this is a non-breaking change, as there would be an OOM `panic` anyways. This patch ensures a fast-fail when there's not enough memory to load the file. This only changes behavior on platforms where `usize` is smaller than 64bits
 2025-08-30 20:29:05 +10:00
Trevor Gross 98806c8fdc Rollup merge of #146017 - maurer:pipe2, r=Mark-Simulacrum 
Mark pipe2 supported in Android

Android has supported pipe2 since 2010, long before the current min SDK.
 2025-08-29 19:33:05 -05:00
Trevor Gross a7fd14f89d Rollup merge of #145991 - GrigorenkoPV:haiku, r=tgross35 
std: haiku: fix `B_FIND_PATH_IMAGE_PATH`

Fixes https://github.com/rust-lang/rust/issues/145952, which was caused by https://github.com/rust-lang/libc/pull/4575

```````@rustbot``````` label T-libs O-haiku
 2025-08-29 19:33:04 -05:00
Trevor Gross 751a9ad2e2 Rollup merge of #145756 - okaneco:stabilize_char_boundary, r=scottmcm 
str: Stabilize `round_char_boundary` feature

Closes https://github.com/rust-lang/rust/issues/93743
FCP completed https://github.com/rust-lang/rust/issues/93743#issuecomment-3168382171
 2025-08-29 19:33:03 -05:00
Trevor Gross ed9e767c01 Rollup merge of #145467 - Kivooeo:stabilize-strict_provenance_atomic_ptr, r=scottmcm 
Stabilize `strict_provenance_atomic_ptr` feature

This closes [tracking issue](https://github.com/rust-lang/rust/issues/99108) and stabilises `AtomicPtr::{fetch_ptr_add, fetch_ptr_sub, fetch_byte_add, fetch_byte_sub, fetch_or, fetch_and, fetch_xor}`

---

EDIT: FCP completed at https://github.com/rust-lang/rust/issues/99108#issuecomment-3168260347
 2025-08-29 19:33:02 -05:00
joboet 85cefabfcd std: use a TAIT to define SplitPaths on UNIX 2025-08-29 16:10:10 +02:00
Pavel Grigorenko e3f1e94be7 std: haiku: fix B_FIND_PATH_IMAGE_PATH 2025-08-29 12:14:17 +03:00
Stuart Cook 4b0933a0a5 Rollup merge of #145793 - he32:netbsd-libexecinfo-fix, r=Mark-Simulacrum 
std library: use execinfo library also on NetBSD.

The execinfo library is also available on NetBSD.
 2025-08-29 12:54:11 +10:00
Stuart Cook 6ac6eb6f49 Rollup merge of #144354 - rafaeling:fix-142726-qnx8-link-fail, r=tgross35 
fix(std): Fix undefined reference to __my_thread_exit on QNX 8.0

When cross-compiling for the x86_64/aarch64-unknown-nto-qnx800 target (QNX SDP 8.0), the build fails during the final link stage with the error:
```
error: linking with `qcc` failed: exit status: 1
  ...
  = note: undefined reference to `__my_thread_exit'
 ```

- **On QNX 7.1**: The __my_thread_exit symbol is defined and exported by the main C library (libc.a/libc.so). The std backtrace code can therefore successfully take its address at compile time.

- **On QNX 8.0**: As part of a toolchain modernization, this symbol has been refactored. It is no longer present in any of the standard system libraries (.a or .so).

This patch addresses the problem at its source by conditionally compiling the problematic code.

Fixes rust-lang/rust#142726
 2025-08-29 12:54:10 +10:00
Matthew Maurer 2d0668d37c Mark pipe2 supported in Android 
Android has supported pipe2 since 2010, long before the current min SDK.
 2025-08-29 00:18:39 +00:00
Stuart Cook bd8fb60977 Rollup merge of #142727 - hkBst:rm-static-mut-wasm, r=ChrisDenton 
wasm: rm static mut

More https://github.com/rust-lang/rust/issues/125035. I'm not sure this is correct, but it compiles.
 2025-08-28 23:10:32 +10:00
Jacob Pratt ad42340e39 Rollup merge of #145746 - ivmarkov:fix-nofollow-espidf, r=ibraheemdev 
Fix STD build failing for target_os = "espidf"

A regression from rust-lang/rust#142938

cc `@lolbinarycat`
cc `@ibraheemdev`

ESP-IDF (and a few other embedded Tier-3 systems) is considered `cfg(unix)`, but it does not have the `O_NOFOLLOW` flag because neither of its three supported filesystems (FATFS, LitteLF and Spiffs) has symbolic links in the first place.

What this fix does is to keep the `set_permissions_nofollow` method available and non-failing for ESP-IDF, but it behaves as if no `O_NONFOLLOW` was set. This should be fine as there is nothing to follow in the first place, as there are no symbolic links there.

EDIT: Also added the same fix for Horizon, as requested by `@Meziu.`
 2025-08-27 21:51:53 -04:00
Matthias Krüger 62e5341661 Rollup merge of #145335 - clarfonthey:wtf8-core-alloc, r=Mark-Simulacrum 
Move WTF-8 code from std into core and alloc

This is basically a small portion of rust-lang/rust#129411 with a smaller scope. It *does not*\* affect any public APIs; this code is still internal to the standard library. It just moves the WTF-8 code into `core` and `alloc` so it can be accessed by `no_std` crates like `backtrace`.

> \* The only public API this affects is by adding a `Debug` implementation to `std::os::windows::ffi::EncodeWide`, which was not present before. This is due to the fact that `core` requires `Debug` implementations for all types, but `std` does not (yet) require this. Even though this was ultimately changed to be a wrapper over the original type, not a re-export, I decided to keep the `Debug` implementation so it remains useful.

Like we do with ordinary strings, the tests are still located entirely in `alloc`, rather than splitting them into `core` and `alloc`.

----

Reviewer note: for ease of review, this is split into three commits:

1. Moving the original files into their new "locations"
2. Actually modifying the code to compile.
3. Removing aesthetic changes that were made so that the diff for commit 2 was readable.

You can review commits 1 and 3 to verify these claims, but commit 2 contains the majority of the changes you should care about.

----

API changes: `impl Debug for std::os::windows::ffi::EncodeWide`
 2025-08-27 07:45:56 +02:00
Matthias Krüger bc9655a7c8 Rollup merge of #145290 - ntc2:patch-1, r=joshtriplett,tgross35 
Improve std::fs::read_dir docs

Call out early that the results returned can differ across calls / aren't deterministic. This was already mentioned at the bottom of examples, but I think it's worth calling out early, since this caused at least one person (me!) great confusion.
 2025-08-27 07:45:55 +02:00
Matthias Krüger 7879cbbbff Rollup merge of #145078 - minxuanz:riscv-cacheline, r=samueltardieu 
Fix wrong cache line size of riscv64

see https://go-review.googlesource.com/c/go/+/526659,  All of riscv CPU using 64B for cache-line size.
 2025-08-27 07:45:55 +02:00
Nathan Collins 0b4f9783f0 Improve std::fs::read_dir docs 
Call out early that the results returned can differ across calls /
aren't deterministic. This was already mentioned at the bottom of
examples, but I think it's worth calling out early, since this caused at
least one person (me!) great confusion.

[ Added a comma to the docs, reflowed commit message - Trevor ]
 2025-08-27 04:58:02 +00:00
Guillaume Gomez 64fcb75e10 Rollup merge of #145615 - lorenzleutgeb:socket-doc, r=ChrisDenton 
Fix doc of `std::os::windows::io::BorrowedSocket::borrow_raw`

A small oversight in 0cb69dec57 I noticed while reading.
 2025-08-26 16:34:13 +02:00
Guillaume Gomez 9bb7d17d9a Rollup merge of #144373 - hkBst:remove-deprecated-1, r=jhpratt 
remove deprecated Error::description in impls

[libs-api permission](https://github.com/rust-lang/libs-team/issues/615#issuecomment-3074045829)

r? `@cuviper`
or `@jhpratt`
 2025-08-26 16:34:09 +02:00
Marijn Schouten 845311a065 remove deprecated Error::description in impls 2025-08-26 06:36:53 +00:00
Rafael RL 17c866780e fix(std): Add __my_thread_exit stub for QNX 8 
This commit adds an empty stub for the  function
for QNX 8 targets. This symbol is required by the unwinder but is
not present, causing a linking failure when building with the
standard library.

Address review feedback: use whitelist for QNX versions
 2025-08-25 10:34:40 +02:00
Jacob Pratt 7a3675c382 Rollup merge of #145799 - ada4a:patch-3, r=GuillaumeGomez 
std/src/lib.rs: mention "search button" instead of "search bar"

r? ```@GuillaumeGomez```
 2025-08-23 23:58:37 -04:00
Jacob Pratt d5340c26fa Rollup merge of #145307 - connortsui20:lazylock-poison-msg, r=Amanieu 
Fix `LazyLock` poison panic message

Fixes the issue raised in https://github.com/rust-lang/rust/pull/144872#issuecomment-3151100248

r? ```@Amanieu```
 2025-08-23 23:58:35 -04:00
Ada Alakbarova 399f5e244c std/src/lib.rs: mention "search button" instead of "search bar" 2025-08-23 23:05:30 +02:00
Samuel Tardieu 982b022b1e Rollup merge of #144452 - morinmorin:apple/update_read_limit, r=ChrisDenton 
std/sys/fd: Relax `READ_LIMIT` on Darwin

Darwin's `read`/`write` syscalls emit `EINVAL` only when `nbyte > INT_MAX`. The case `nbyte == INT_MAX` is valid, so the subtraction (`- 1`) in
```rust
const READ_LIMIT: usize = if cfg!(target_vendor = "apple") {
    libc::c_int::MAX as usize - 1 // <- HERE
} else {
    libc::ssize_t::MAX as usize
};
```
can be removed.

I tested that the case `nbyte == INT_MAX` is valid on various versions of macOS, including old one like Mac OS X 10.5.

The man page says:
- read() and pread() will fail if the parameter nbyte exceeds INT_MAX (link: https://keith.github.io/xcode-man-pages/read.2.html)
- write() and pwrite() will fail if the parameter nbyte exceeds INT_MAX (link: https://keith.github.io/xcode-man-pages/write.2.html)

Here are links to Darwin's code:
- [macOS 15.5] https://github.com/apple-oss-distributions/xnu/blob/e3723e1f17661b24996789d8afc084c0c3303b26/bsd/kern/sys_generic.c#L307
- [Mac OS X 10.2] https://github.com/apple/darwin-xnu/blob/d738f900846ed2d5f685e18bf85ce63b0176f61a/bsd/kern/sys_generic.c#L220

Related PR: rust-lang/rust#38622.
 2025-08-23 22:22:15 +02:00
Havard Eidnes db4e71683e std library: use execinfo library also on NetBSD. 2025-08-23 18:52:11 +00:00
Connor Tsui d210ce7dac fix visibility of private getters 
Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
 2025-08-23 09:39:39 -04:00
Connor Tsui b8ee38b79e move WaitTimeoutResult up to mod.rs 
Since `WaitTimeoutResult` is poison-agnostic, we want to use the same
type for both variants of `Condvar`.

Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
 2025-08-23 09:20:47 -04:00
Connor Tsui a8163bd6f4 change Barrier implementation to use nonpoison::Condvar 
Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
 2025-08-23 09:20:46 -04:00
Connor Tsui b2380d2bcc add nonpoison and poison condvar tests 
Adds tests for the `nonpoison::Mutex` variant by using a macro to
duplicate the existing `poison` tests.

Note that all of the tests here are adapted from the existing `poison`
tests.

Also steals the `test_mutex_arc_condvar` test from `mutex.rs`.

Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
 2025-08-23 09:20:44 -04:00
Connor Tsui eaf7fd2fed add nonpoison::condvar implementation 
Adds the equivalent `nonpoison` types to the `poison::condvar` module.
These types and implementations are gated under the `nonpoison_condvar`
feature gate.

Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
 2025-08-23 09:17:30 -04:00
ivmarkov 6e5a4275f7 Fix STD build failing for target_os = espidf 2025-08-23 12:32:35 +00:00
Jacob Pratt 6991786d5e Rollup merge of #145633 - qxzcode:patch-1, r=jhpratt 
Fix some typos in LocalKey documentation

A few minor grammatical/wording changes in the `std::thread::LocalKey` documentation.
 2025-08-22 22:00:52 -04:00
Jacob Pratt 2bd39222cd Rollup merge of #144648 - connortsui20:nonpoison_rwlock, r=Mark-Simulacrum 
Implementation: `#[feature(nonpoison_rwlock)]`

Tracking Issue: https://github.com/rust-lang/rust/issues/134645

This PR continues the effort made in https://github.com/rust-lang/rust/pull/144022 by adding the implementation of `nonpoison::rwlock`.

Many of the changes here are similar to the changes made to implement `nonpoison::mutex`. The only real difference is that this PR includes a reorganizing of the existing `poison::rwlock` file that hopefully makes both variants more readable.

### Related PRs

- `nonpoison_condvar` implementation: https://github.com/rust-lang/rust/pull/144651
- `nonpoison_once` implementation: https://github.com/rust-lang/rust/pull/144653
 2025-08-22 22:00:46 -04:00
Connor Tsui 06eb782c4e modify LazyLock poison panic message 
Fixes an issue where if the underlying `Once` panics because it is
poisoned, the panic displays the wrong message.

Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>
 2025-08-22 14:59:34 -04:00
okaneco e42c1b1296 Stabilize round_char_boundary feature 2025-08-22 13:42:38 -04:00
Jacob Pratt 0a0553e2e4 Rollup merge of #137494 - nabijaczleweli:dup, r=Mark-Simulacrum 
libstd: init(): dup() subsequent /dev/nulls instead of opening them again

This will be faster, and also it deduplicates the code so win/win

The dup() is actually infallible here. But whatever.

Before:
```
poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 1 ([{fd=2, revents=POLLNVAL}])
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 2
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5749313050}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0

poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 2 ([{fd=0, revents=POLLNVAL}, {fd=2, revents=POLLNVAL}])
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 0
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 2
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7efe12006050}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0

poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 3 ([{fd=0, revents=POLLNVAL}, {fd=1, revents=POLLNVAL}, {fd=2, revents=POLLNVAL}])
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 0
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 1
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 2
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fc2dc7ca050}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
```

After:
```
poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 1 ([{fd=1, revents=POLLNVAL}])
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 1
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f488a3fb050}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0

poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 2 ([{fd=1, revents=POLLNVAL}, {fd=2, revents=POLLNVAL}])
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 1
dup(1)                                  = 2
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f1a8943c050}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0

poll([{fd=0, events=0}, {fd=1, events=0}, {fd=2, events=0}], 3, 0) = 3 ([{fd=0, revents=POLLNVAL}, {fd=1, revents=POLLNVAL}, {fd=2, revents=POLLNVAL}])
openat(AT_FDCWD, "/dev/null", O_RDWR)   = 0
dup(0)                                  = 1
dup(0)                                  = 2
rt_sigaction(SIGPIPE, {sa_handler=SIG_IGN, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f4e3a4c7050}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
```
 2025-08-21 17:57:48 -04:00
Jacob Pratt 018568f0cb Rollup merge of #145673 - Berrysoft:cygwin-fix-flock, r=joshtriplett 
Add flock support for cygwin

See discussion: https://github.com/rust-lang/rust/issues/145534#issuecomment-3207265236

cc: ``@jeremyd2019``
 2025-08-21 01:12:24 -04:00
Jacob Pratt d54aaed392 Rollup merge of #145525 - typesanitizer:vg/doc, r=Mark-Simulacrum 
stdlib: Replace typedef -> type alias in doc comment

'typedef' is jargon from C and C++.

Since the Rust reference uses the term [type alias](https://doc.rust-lang.org/reference/items/type-aliases.html),
this patch changes the doc comment in io/error.rs
to also use 'type alias'.
 2025-08-21 01:12:19 -04:00
Jacob Pratt 32824b58e4 Rollup merge of #144758 - QnJ1c2kNCg:master, r=Noratrieb 
[Doc] Add links to the various collections

Add a few links to the collections mentioned in the module doc for Collections.
 2025-08-21 01:12:14 -04:00
ltdk 2914291e09 Move WTF-8 code from std to core/alloc 2025-08-20 20:31:33 -04:00
ltdk 5a2fceefd3 Copy WTF-8 code into core/alloc (for better diffs) 2025-08-20 20:31:33 -04:00
王宇逸 cadb56d92e Add flock support for cygwin 2025-08-21 01:06:51 +08:00