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2022-09-15Only enable the let_else feature on bootstrapest31-1/+1
On later stages, the feature is already stable. Result of running: rg -l "feature.let_else" compiler/ src/librustdoc/ library/ | xargs sed -s -i "s#\\[feature.let_else#\\[cfg_attr\\(bootstrap, feature\\(let_else\\)#"
2022-09-15Rollup merge of #101559 - andrewpollack:add-backtrace-off-fuchsia, r=tmandryMatthias Krüger-17/+16
Adding "backtrace off" option for fuchsia targets Used for improving compiler test suite results on Fuchsia targets
2022-09-14Adding backtrace off option for fuchsia targetsAndrew Pollack-17/+16
2022-09-12Simplify `clippy` fix.Markus Reiter-2/+0
2022-09-12Add `rustc_diagnostic_item` for IP addresses.Markus Reiter-0/+5
2022-09-12Flatten `net` module again.Markus Reiter-9/+7
2022-09-12Move `net::parser` into `net::addr` module.Markus Reiter-3/+3
2022-09-12Add tests for `SockAddr` `Display`.Markus Reiter-0/+69
2022-09-12Use `DisplayBuffer` for socket addresses.Markus Reiter-46/+34
2022-09-12Rollup merge of #100767 - kadiwa4:escape_ascii, r=jackh726Dylan DPC-14/+2
Remove manual <[u8]>::escape_ascii `@rustbot` label: +C-cleanup
2022-09-11Auto merge of #101442 - joboet:null_check_tcs, r=thomccbors-2/+6
Check if TCS is a null pointer on SGX The `EENTER` instruction only checks if the TCS is aligned, not if it zero. Saying the address returned is a `NonNull<u8>` (for which `Tcs` is a type alias) is unsound. As well-behaved runners will not put the TCS at address zero, so the definition of `Tcs` is correct. However, `std` should check the address before casting it to a `NonNull`. ping `@jethrogb` `@raoulstrackx` `@rustbot` label I-unsound
2022-09-11std: check if TCS is a null pointerjoboet-2/+6
2022-09-11Auto merge of #101482 - joboet:netbsd_parker, r=sanxiynbors-12/+136
Optimize thread parking on NetBSD As the futex syscall is not present in the latest stable release, NetBSD cannot use the efficient thread parker and locks Linux uses. Currently, it therefore relies on a pthread-based parker, consisting of a mutex and semaphore which protect a state variable. NetBSD however has more efficient syscalls available: [`_lwp_park`](https://man.netbsd.org/_lwp_park.2) and [`_lwp_unpark`](https://man.netbsd.org/_lwp_unpark.2). These already provide the exact semantics of `thread::park` and `Thread::unpark`, but work with thread ids. In `std`, this ID is here stored in an atomic state variable, which is also used to optimize cases were the parking token is already available at the time `thread::park` is called. r? `@m-ou-se`
2022-09-11Auto merge of #101643 - ChrisDenton:alloc-link-kernel32, r=thomccbors-0/+1
Explicitly link kernel32.lib from alloc
2022-09-10std: optimize thread parking on NetBSDjoboet-12/+136
2022-09-10Rollup merge of #101606 - akhi3030:patch-1, r=Dylan-DPCDylan DPC-1/+1
doc: fix minor typo
2022-09-10Explicitly link kernel32.lib from allocChris Denton-0/+1
2022-09-09Auto merge of #101617 - Dylan-DPC:rollup-iiy4ipc, r=Dylan-DPCbors-18/+20
Rollup of 5 pull requests Successful merges: - #101366 (Restore old behaviour on broken UNC paths) - #101492 (Suggest adding array lengths to references to arrays if possible) - #101529 (Fix the example code and doctest for Formatter::sign_plus) - #101573 (update `ParamKindOrd`) - #101612 (Fix code generation of `Rvalue::Repeat` with 128 bit values) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
2022-09-09Rollup merge of #101366 - ChrisDenton:unc-forward-slash, r=m-ou-seDylan DPC-18/+20
Restore old behaviour on broken UNC paths This fixes #101358 by restoring the behaviour from previous stable Rust versions. I'm not convinced this is ultimately right but I think it's less wrong and maybe this should be backported to beta? r? libs
2022-09-09std: use futex-based locks and thread parker on Hermitjoboet-453/+49
2022-09-09doc: fix minor typoAkhilesh Singhania-1/+1
2022-09-08Rollup merge of #101423 - mkroening:hermit-warnings, r=sanxiynMichael Goulet-4/+0
Fix hermit warnings This fixes two `unused_imprt` and one `dead_code` warning for hermit.
2022-09-08Rollup merge of #101422 - mkroening:hermit-file-time, r=joshtriplettDylan DPC-0/+12
Hermit: Add File::set_time stub This is not supported on hermit yet. This change is required for compiling std.
2022-09-07Auto merge of #101544 - matthiaskrgr:rollup-4urx917, r=matthiaskrgrbors-0/+15
Rollup of 14 pull requests Successful merges: - #101343 (Add -api-level to pm command) - #101416 (stdio: Document no support for writing to non-blocking stdio/stderr) - #101435 (Remove unnecessary `EMIT_MIR_FOR_EACH_BITWIDTH`) - #101493 (Pass ImplTraitContext as &mut to avoid the need of ImplTraitContext::reborrow) - #101502 (Do not suggest a semicolon for a macro without `!`) - #101503 (Add debug calls) - #101506 (rustdoc: remove unused CSS `#main-content > .since`) - #101507 (rustdoc: remove unused CSS `#main-content > table td`) - #101521 (Rustdoc-Json: More accurate struct type.) - #101525 (Fix typo in pass_manager.rs) - #101534 (rustdoc: remove unused mobile CSS `.rustdoc { flex-direction }`) - #101535 (Fix error printing mistake in tidy) - #101536 (Add documentation for Attr::is_doc_comment) - #101538 (rustdoc: remove unused CSS `.content .methods > div`) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
2022-09-07Auto merge of #101476 - ChrisDenton:BCryptRandom-fix, r=thomccbors-20/+88
Open a BCrypt algorithm handle Fixes #101474, supplants #101456. Replaces use of a pseduo handle with manually opening a algorithm handle. Most interesting thing here is the atomics. r? `@thomcc`
2022-09-07stdio: Document no support for writing to non-blocking stdio/stderrUsama Arif-0/+15
Printing to stdio/stderr that have been opened with non-blocking (O_NONBLOCK in linux) can result in an error, which is not handled by std::io module causing a panic. Signed-off-by: Usama Arif <usama.arif@bytedance.com>
2022-09-07Don't break windows/rand for miriChris Denton-0/+12
2022-09-06Open a BCrypt algorithm handleChris Denton-20/+76
2022-09-06Fix compile errors for uwp-windows-msvc targetsChris Denton-1/+1
2022-09-06Rollup merge of #101426 - beetrees:dup-no-stdio, r=thomccYuki Okushi-1/+2
Don't duplicate file descriptors into stdio fds Ensures that file descriptors are never duplicated into the stdio fds even if a stdio fd has been closed.
2022-09-06Rollup merge of #101404 - joboet:always_cleanup_stdout, r=joshtriplettYuki Okushi-8/+17
Fix cleanup for uninitialized stdout Fixes #101375 by disabling buffering even if the buffer was not initialized yet.
2022-09-05Rollup merge of #101391 - matthiaskrgr:perf0309, r=oli-obkDylan DPC-1/+1
more clippy::perf fixes
2022-09-05std: fix cleanup for uninitialized stdout (#101375)joboet-8/+17
2022-09-04Auto merge of #100576 - joboet:movable_const_remutex, r=Mark-Simulacrumbors-165/+39
Make `ReentrantMutex` movable and `const` As `MovableMutex` is now `const`, it can be used to simplify the implementation and interface of the internal reentrant mutex type. Consequently, the standard error stream does not need to be wrapped in `OnceLock` and `OnceLock::get_or_init_pin()` can be removed.
2022-09-05Hermit: Remove unused socklen_t (dead_code)Martin Kröning-2/+0
2022-09-05Hermit: Fix unused_importsMartin Kröning-2/+0
2022-09-05Hermit: Add File::set_time stubMartin Kröning-0/+12
This is not supported on hermit yet. This change is required for compiling std.
2022-09-04Rollup merge of #101394 - CAD97:patch-3, r=Mark-SimulacrumMatthias Krüger-1/+4
Forbid mixing `System` with direct sytem allocator calls e.g. [on windows](https://github.com/rust-lang/rust/blob/dec689432fac6720b2f18101ac28a21add98b1b8/library/std/src/sys/windows/alloc.rs#L129-L178), trying to mix `System::alloc` and `HeapFree` will not work because of the extra work done to serve higher alignments.
2022-09-04Don't duplicate file descriptors into stdio fdsbeetrees-1/+2
2022-09-03Forbid mixing `System` with sytem allocator callsChristopher Durham-1/+4
2022-09-03more clippy::perf fixesMatthias Krüger-1/+1
2022-09-03updated description of File struct in std::fsBart Massey-1/+1
2022-09-03std: make `ReentrantMutex` movable and `const`; simplify `Stdout` initializationjoboet-165/+39
2022-09-03Restore old behaviour on broken UNC pathsChris Denton-18/+20
2022-09-03Rollup merge of #101330 - wkordalski:hashset-drain-doc, r=jyn514Dylan DPC-1/+1
Fix `std::collections::HashSet::drain` documentation Hi! `std::collections::HashSet::drain` contains small typo in the docstring. I didn't read too much about the model of contributing to Rust, so merge this PR or close and fix the typo the right way :) Thanks for Rust!
2022-09-03Rollup merge of #101325 - ChrisDenton:BCRYPT_RNG_ALG_HANDLE, r=thomccDylan DPC-5/+38
Windows RNG: Use `BCRYPT_RNG_ALG_HANDLE` by default This only changes a small amount of actual code, the rest is documentation outlining the history of this module as I feel it will be relevant to any future issues that might crop up. The code change is to use the `BCRYPT_RNG_ALG_HANDLE` [pseudo-handle](https://docs.microsoft.com/en-us/windows/win32/seccng/cng-algorithm-pseudo-handles) by default, which simply uses the default RNG. Previously we used `BCRYPT_USE_SYSTEM_PREFERRED_RNG` which has to load the system configuration and then find and load that RNG. I suspect this was the cause of failures on some systems (e.g. due to corrupted config). However, this is admittedly speculation as I can't reproduce the issue myself (and it does seem quite rare even in the wild). Still, removing a possible point of failure is likely worthwhile in any case. r? libs
2022-09-02Auto merge of #97802 - Enselic:add-no_ignore_sigkill-feature, r=joshtriplettbors-14/+63
Support `#[unix_sigpipe = "inherit|sig_dfl"]` on `fn main()` to prevent ignoring `SIGPIPE` When enabled, programs don't have to explicitly handle `ErrorKind::BrokenPipe` any longer. Currently, the program ```rust fn main() { loop { println!("hello world"); } } ``` will print an error if used with a short-lived pipe, e.g. % ./main | head -n 1 hello world thread 'main' panicked at 'failed printing to stdout: Broken pipe (os error 32)', library/std/src/io/stdio.rs:1016:9 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace by enabling `#[unix_sigpipe = "sig_dfl"]` like this ```rust #![feature(unix_sigpipe)] #[unix_sigpipe = "sig_dfl"] fn main() { loop { println!("hello world"); } } ``` there is no error, because `SIGPIPE` will not be ignored and thus the program will be killed appropriately: % ./main | head -n 1 hello world The current libstd behaviour of ignoring `SIGPIPE` before `fn main()` can be explicitly requested by using `#[unix_sigpipe = "sig_ign"]`. With `#[unix_sigpipe = "inherit"]`, no change at all is made to `SIGPIPE`, which typically means the behaviour will be the same as `#[unix_sigpipe = "sig_dfl"]`. See https://github.com/rust-lang/rust/issues/62569 and referenced issues for discussions regarding the `SIGPIPE` problem itself See the [this](https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/Proposal.3A.20First.20step.20towards.20solving.20the.20SIGPIPE.20problem) Zulip topic for more discussions, including about this PR. Tracking issue: https://github.com/rust-lang/rust/issues/97889
2022-09-02Rollup merge of #101260 - ChrisDenton:attribute-tag, r=thomccMatthias Krüger-8/+24
Use `FILE_ATTRIBUTE_TAG_INFO` to get reparse tag I've been looking at this code recently and it just occurred to me we don't actually use the full reparse data at this point, only the tag. [`GetFileInformationByHandleEx`](https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getfileinformationbyhandleex) can do exactly that by filling a [`FILE_ATTRIBUTE_TAG_INFO`](https://docs.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-file_attribute_tag_info) struct. r? ```````@thomcc``````` since you've made changes here recently (which is why I have this code on my mind atm)
2022-09-02Fix `std::collections::HashSet::drain` documentationWojciech Kordalski-1/+1
2022-09-02Use `BCRYPT_RNG_ALG_HANDLE` by defaultChris Denton-5/+38
Also briefly document the history of `sys/windows/rand.rs` as they may be relevant to any future changes.