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2023-04-27correct `std::prelude` commentKaDiWa-4/+4
2023-04-27Update test.Mara Bos-19/+1
2023-04-27Remove unused std::sys_common::thread_local_key::Key.Mara Bos-61/+0
2023-04-27Remove all in target_thread_local cfgAyush Singh-1/+1
I think it was left there by mistake after previous refactoring. Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
2023-04-27std: use `LazyLock` to lazily resolve backtracesjoboet-54/+25
2023-04-27Auto merge of #110562 - ComputerDruid:riscv, r=tmandrybors-0/+6
Add definitions for riscv64gc-unknown-fuchsia To compile, also requires a libc update with https://github.com/rust-lang/libc/pull/3204
2023-04-27docs(std): clarify `remove_dir_all` errorsPhilpax-0/+5
2023-04-26Auto merge of #110861 - m-ou-se:thread-local-restructure, r=workingjubileebors-311/+283
Restructure and rename std thread_local internals to make it less of a maze Every time I try to work on std's thread local internals, it feels like I'm trying to navigate a confusing maze made of macros, deeply nested modules, and types with multiple names/aliases. Time to clean it up a bit. This PR: - Exports `Key` with its own name (`Key`), instead of `__LocalKeyInner` - Uses `pub macro` to put `__thread_local_inner` into a (unstable, hidden) module, removing `#[macro_export]`, removing it from the crate root. - Removes the `__` from `__thread_local_inner`. - Removes a few unnecessary `allow_internal_unstable` features from the macros - Removes the `libstd_thread_internals` feature. (Merged with `thread_local_internals`.) - And removes it from the unstable book - Gets rid of the deeply nested modules for the `Key` definitions (`mod fast` / `mod os` / `mod statik`). - Turns a `#[cfg]` mess into a single `cfg_if`, now that there's no `#[macro_export]` anymore that breaks with `cfg_if`. - Simplifies the `cfg_if` conditions to not repeat the conditions. - Removes useless `normalize-stderr-test`, which were left over from when the `Key` types had different names on different platforms. - Removes a seemingly unnecessary `realstd` re-export on `cfg(test)`. This PR changes nothing about the thread local implementation. That's for a later PR. (Which should hopefully be easier once all this stuff is a bit cleaned up.)
2023-04-26Restructure and rename thread local things in std.Mara Bos-311/+283
2023-04-26Rollup merge of #110419 - jsoref:spelling-library, r=jyn514Matthias Krüger-19/+20
Spelling library Split per https://github.com/rust-lang/rust/pull/110392 I can squash once people are happy w/ the changes. It's really uncommon for large sets of changes to be perfectly acceptable w/o at least some changes. I probably won't have time to respond until tomorrow or the next day
2023-04-26Rollup merge of #110587 - tomaka:fix-109727, r=jyn514jyn-2/+7
Fix `std` compilation error for wasi+atomics Fix https://github.com/rust-lang/rust/issues/109727 It seems that the `unsupported/once.rs` module isn't meant to exist at the same time as the `futex` module, as they have conflicting definitions. I've solved this by defining the `once` module only if `not(target_feature = "atomics")`. The `wasm32-unknown-unknown` target [similarly only defines the `once` module if `not(target_feature = "atomics")`](https://github.com/tomaka/rust/blob/01c4f319276da912dd2be768ae0ce9857ad6bb63/library/std/src/sys/wasm/mod.rs#L69-L70). As show in [this block of code](https://github.com/tomaka/rust/blob/01c4f319276da912dd2be768ae0ce9857ad6bb63/library/std/src/sys_common/once/mod.rs#L10-L34), the `sys::once` module doesn't need to exist if `all(target_arch = "wasm32", target_feature = "atomics")`.
2023-04-26Rollup merge of #110266 - tgross35:try-exists-wording, r=jyn514jyn-6/+9
Update documentation wording on path 'try_exists' functions Just eliminate the quadruple negation in `doesn't silently ignore errors unrelated to ... not existing.`
2023-04-26rewrite: line_long_tail_not_flushed descriptionJosh Soref-3/+4
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2023-04-26rewrite: long_line_flushed descriptionJosh Soref-3/+3
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2023-04-26Spelling library/Josh Soref-13/+13
* advance * aligned * borrowed * calculate * debugable * debuggable * declarations * desugaring * documentation * enclave * ignorable * initialized * iterator * kaboom * monomorphization * nonexistent * optimizer * panicking * process * reentrant * rustonomicon * the * uninitialized Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
2023-04-25Add definitions for riscv64gc-unknown-fuchsiaDan Johnson-0/+6
2023-04-25Add FreeBSD cpuset support to std::thread::available_concurrencyThomas Hurst-0/+19
Use libc::cpuset_getaffinity to determine the CPUs available to the current process. The existing sysconf and sysctl paths are left as fallback.
2023-04-25Rollup merge of #110782 - matthiaskrgr:revert_panic_oom, r=AmanieuMatthias Krüger-29/+93
Revert panic oom This temporarily reverts https://github.com/rust-lang/rust/pull/109507 until https://github.com/rust-lang/rust/issues/110771 is addressed r? `@Amanieu`
2023-04-24Auto merge of #106152 - SUPERCILEX:lazycell, r=Amanieubors-1/+37
Add LazyCell::into_inner This enables uses cases that need to extract the evaluated value and do something owned with it.
2023-04-25Revert "Report allocation errors as panics"Matthias Krüger-27/+17
This reverts commit c9a6e41026d7aa27d897fb83e995447719753076.
2023-04-25Revert "Remove #[alloc_error_handler] from the compiler and library"Matthias Krüger-2/+76
This reverts commit abc0660118cc95f47445fd33502a11dd448f5968.
2023-04-23Auto merge of #110655 - ChrisDenton:read-to-end, r=joshtriplettbors-24/+43
Limit read size in `File::read_to_end` loop Fixes #110650. Windows file reads have perf overhead that's proportional to the buffer size. When we have a reasonable expectation that we know the file size, we can set a reasonable upper bound for the size of the buffer in one read call.
2023-04-22Auto merge of #109507 - Amanieu:panic-oom-payload, r=davidtwcobors-93/+29
Report allocation errors as panics OOM is now reported as a panic but with a custom payload type (`AllocErrorPanicPayload`) which holds the layout that was passed to `handle_alloc_error`. This should be review one commit at a time: - The first commit adds `AllocErrorPanicPayload` and changes allocation errors to always be reported as panics. - The second commit removes `#[alloc_error_handler]` and the `alloc_error_hook` API. ACP: https://github.com/rust-lang/libs-team/issues/192 Closes #51540 Closes #51245
2023-04-21Limit read size in `File::read_to_end` loopChris Denton-24/+43
This works around performance issues on Windows by limiting reads the size of reads when the expected size is known.
2023-04-21Rollup merge of #110633 - scottmcm:more-take, r=thomccDylan DPC-5/+5
More `mem::take` in `library` A bunch of places were using `replace(…, &mut [])`, but that can just be `take`.
2023-04-20More `mem::take` in `library`Scott McMurray-5/+5
A bunch of places were using `replace(…, &mut [])`, but that can just be `take`.
2023-04-20Specialize some `io::Read` and `io::Write` methods for `VecDeque<u8>` and ↵Benoît du Garreau-0/+54
`&[u8]`
2023-04-20Implement `BufRead` for `VecDeque<u8>`Benoît du Garreau-0/+18
2023-04-20Fix `std` compilation error for wasi+atomicsPierre Krieger-2/+7
2023-04-19Auto merge of #110393 - fee1-dead-contrib:rm-const-traits, r=oli-obkbors-6/+3
Rm const traits in libcore See [zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/146212-t-compiler.2Fconst-eval/topic/.60const.20Trait.60.20removal.20or.20rework) * [x] Bless ui tests * [ ] Re constify some unstable functions with workarounds if they are needed
2023-04-19std: make `Debug` representations of `[Lazy, Once]*[Cell, Lock]` consistent ↵joboet-20/+12
with `Mutex` and `RwLock` `Mutex` prints `<locked>` as a field value when its inner value cannot be accessed, but the lazy types print a fixed string like "`OnceCell(Uninit)`". This could cause confusion if the inner type is a unit type named `Uninit` and does not respect the pretty-printing flag. With this change, the format message is now "`OnceCell(<uninit>)`", consistent with `Mutex`.
2023-04-16Windows: map a few more error codes to ErrorKindChris Denton-3/+6
NotFound errors: * `ERROR_INVALID_DRIVE`: The system cannot find the drive specified * `ERROR_BAD_NETPATH`: The network path was not found * `ERROR_BAD_NET_NAME`: The network name cannot be found. InvalidFilename: * `ERROR_BAD_PATHNAME`: The specified path is invalid.
2023-04-16Remove #[alloc_error_handler] from the compiler and libraryAmanieu d'Antras-76/+2
2023-04-16Report allocation errors as panicsAmanieu d'Antras-17/+27
2023-04-16rm const traits in libcoreDeadbeef-6/+3
2023-04-14edit docs of `PathBuf::set_file_name`João M. Bezerra-5/+11
to show this method might replace or remove the extension, not just the file stem also edit docs of `Path::with_file_name` because it calls `PathBuf::set_file_name`
2023-04-14Add Lazy{Cell,Lock}::into_innerAlex Saveau-1/+37
Signed-off-by: Alex Saveau <saveau.alexandre@gmail.com>
2023-04-14Rollup merge of #110244 - kadiwa4:unnecessary_imports, r=JohnTitorMatthias Krüger-46/+23
Remove some unneeded imports / qualified paths Continuation of #105537.
2023-04-14Rollup merge of #110154 - DaniPopes:library-typos, r=JohnTitorMatthias Krüger-3/+3
Fix typos in library I ran [`typos -w library`](https://github.com/crate-ci/typos) to fix typos in the `library` directory. Refs #110150
2023-04-14Rollup merge of #109272 - schneems:schneems/add-docs-to-command-env-methods, ↵Matthias Krüger-15/+61
r=Amanieu Add Command environment variable inheritance docs The interaction between the environment variable methods can be confusing. Specifically `env_clear` and `remove_env` have a side effects not mentioned: they disable inheriting environment variables from the parent process. I wanted to fully document this behavior as well as explain relevant edge cases in each of the `Command` env methods. This is further confused by the return of `get_envs` which will return key/None if `remove_env` has been used, but an empty iterator if `env_clear` has been called. Or a non-empty iterator if `env_clear` was called and later explicit mappings are added. Currently there is no way (that I'm able to find) of observing whether or not the internal `env_clear=true` been toggled on the `Command` struct via its public API. Ultimately environment variable mappings can be in one of several states: - Explicitly set value (via `envs` / `env`) will take precedence over parent mapping - Not explicitly set, will inherit mapping from parent - Explicitly removed via `remove_env`, this single mapping will not inherit from parent - Implicitly removed via `env_clear`, no mappings will inherit from parent I tried to represent this in the relevant sections of the docs. This is my second-ever doc PR (whoop!). I'm happy to take specific or general doc feedback. Also happy to explain the logic behind any changes or additions I made.
2023-04-14Rollup merge of #110292 - scottmcm:sort-features-2, r=jyn514Yuki Okushi-7/+19
Add `tidy-alphabetical` to features in `alloc` & `std` So that people have to keep them sorted in future, rather than just sticking them on the end where they conflict more often. Follow-up to #110269 cc `@jyn514`
2023-04-14Rollup merge of #110047 - skaunov:patch-1, r=ChrisDentonYuki Okushi-2/+5
Add link to `collections` docs to `extend` trait I believe it would be useful here.
2023-04-14Add links to docs to `Iterator`Sergey Kaunov-2/+5
and couple of its methods
2023-04-14Auto merge of #110311 - matthiaskrgr:rollup-kn2k5bq, r=matthiaskrgrbors-5/+10
Rollup of 9 pull requests Successful merges: - #109225 (Clarify that RUST_MIN_STACK may be internally cached) - #109800 (Improve safe transmute error reporting) - #110158 (Remove obsolete test case) - #110180 (don't uniquify regions when canonicalizing) - #110207 (Assemble `Unpin` candidates specially for generators in new solver) - #110276 (Remove all but one of the spans in `BoundRegionKind::BrAnon`) - #110279 (rustdoc: Correctly handle built-in compiler proc-macros as proc-macro and not macro) - #110298 (Cover edge cases for {f32, f64}.hypot() docs) - #110299 (Switch to `EarlyBinder` for `impl_subject` query) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
2023-04-14Rollup merge of #110298 - jmaargh:jmaargh/hypot-docs-edge-cases, r=thomccMatthias Krüger-4/+8
Cover edge cases for {f32, f64}.hypot() docs Fixes #88944 The Euclidean distance is a more general way to express what these functions do, and covers the edge cases of zero and negative inputs. Does not cover the case of non-normal input values (as the [POSIX docs](https://pubs.opengroup.org/onlinepubs/9699919799.2008edition/) do), but the docs for the rest of the functions in these modules do not address this, I assumed it was not desired.
2023-04-14Rollup merge of #109225 - seanlinsley:patch-1, r=ChrisDentonMatthias Krüger-1/+2
Clarify that RUST_MIN_STACK may be internally cached For larger applications it's important that users set `RUST_MIN_STACK` at the start of their program because [`min_stack`](https://github.com/rust-lang/rust/blob/7d3e03666a93bd2b0f78b3933f9305832af771a5/library/std/src/sys_common/thread.rs) caches the value. Not doing so can lead to their `env::set_var` call surprisingly not having any effect. In my own testing `RUST_MIN_STACK` had no effect until I moved it to the top of `main()`. Hopefully this clarification in the docs will help others going forward.
2023-04-14Auto merge of #105007 - dlaugt:solaris-fs-link, r=ChrisDentonbors-3/+4
linkat() not available in the system headers of Solaris 10 I've installed rustup on x86_64-unknown-linux-gnu and would like to use the target sparcv9-sun-solaris. For this, I have built a gcc from the source code for cross-compiling to sparcv9-sun-solaris2.10 with system headers of Solaris 10. With the following hello word example: main.rs: ```rust fn main() { println!("Hello, world!"); } ``` I had a compilation error: ``` $ rustc -v --target sparcv9-sun-solaris -C linker=/opt/cross-solaris/gcc730/bin/sparcv9-sun-solaris2.10-gcc main.rs error: linking with `/opt/cross-solaris/gcc730/bin/sparcv9-sun-solaris2.10-gcc` failed: exit status: 1 | = note: "/opt/cross-solaris/gcc730/bin/sparcv9-sun-solaris2.10-gcc" "-m64" "/tmp/rustcgebYgj/symbols.o" "main.main.89363361-cgu.0.rcgu.o" "main.main.89363361-cgu.1.rcgu.o" "main.main.89363361-cgu.2.rcgu.o" "main.main.89363361-cgu.3.rcgu.o" "main.main.89363361-cgu.4.rcgu.o" "main.main.89363361-cgu.5.rcgu.o" "main.csypsau9u2r8348.rcgu.o" "-Wl,-z,ignore" "-L" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib" "-Wl,-Bstatic" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libstd-fa47c8247d587714.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libpanic_unwind-5c87bbe223e6c2a3.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libobject-d484934062ff9fbb.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libmemchr-e8dbd5835abcbf43.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libaddr2line-909ad09329bde2f9.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libgimli-4d74a3be929697ac.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/librustc_demangle-47cbe1d7f7271ae1.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libstd_detect-239fd2d25fb32a00.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libhashbrown-c4a7ce45fb9dec19.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libminiz_oxide-fa6bc3d9bfb4e402.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libadler-419f5a82ddd339a3.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/librustc_std_workspace_alloc-7672b378962c11be.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libunwind-0f9e07f0a032c000.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libcfg_if-ede7757c356dfb28.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/liblibc-808d56fbc668148a.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/liballoc-784767fe059ad3fe.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/librustc_std_workspace_core-aa31d7ef0556bbe1.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libcore-81d07df07db18847.rlib" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libcompiler_builtins-313a510e63006db2.rlib" "-Wl,-Bdynamic" "-lsocket" "-lposix4" "-lpthread" "-lresolv" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lsendfile" "-llgrp" "-L" "/home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib" "-o" "main" "-nodefaultlibs" = note: /opt/cross-solaris/gcc730/lib/gcc/sparcv9-sun-solaris2.10/7.3.0/../../../../sparcv9-sun-solaris2.10/bin/ld: warning: -z ignore ignored. /home/dlaugt/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/sparcv9-sun-solaris/lib/libstd-fa47c8247d587714.rlib(std-fa47c8247d587714.std.5c42d2c1-cgu.0.rcgu.o): In function `std::sys::unix::fs::link::h3683dfbfbb4995cb': /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/sys/unix/fs.rs:1407: undefined reference to `linkat' collect2: error: ld returned 1 exit status = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified = note: use the `-l` flag to specify native libraries to link = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname) ``` linkat() is not available in the system headers of Solaris 10. The hello word example works fine when I build/use rust with this PR change.
2023-04-13Update documentation wording on path 'try_exists' functionsTrevor Gross-6/+9
2023-04-13Cover edge cases for {f32, f64}.hypot() docsjmaargh-4/+8
Re-phrase in a way that handles input values being either 0 or negative.
2023-04-13Rollup merge of #110233 - nbdd0121:intrinsic, r=tmiaskoMatthias Krüger-0/+1
Make rust-intrinsic ABI unwindable Fix #104451, fix https://github.com/rust-lang/miri/issues/2839 r? `@RalfJung`
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