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Try not to use verbatim paths in `Command::current_dir`
If possible, we should try not to use verbatim paths in `Command::current_dir`. It might work but it might also break code in the subprocess that assume the current directory isn't verbatim (including Windows APIs). cc ``@ehuss``
Side note: we now have a lot of ad-hoc fixes like this spread about the place. It'd be good to make a proper `WindowsPath` type that handles all this in one place. But that's a bigger job for another PR.
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If possible, we should try not to use verbatim paths in Command::current_dir. It might work but it might also break code (including some Windows APIs) that assume the current directory isn't verbatim.
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Trusty: Implement `write_vectored` for stdio
Currently, `write` for stdout and stderr on Trusty is implemented with the semantics of `write_all`. Instead, call the underlying syscall only once in `write` and use the default implementation of `write_all` like other platforms. Also, implement `write_vectored` by adding support for `IoSlice`.
Refactor stdin to reuse the unsupported type like https://github.com/rust-lang/rust/pull/136769.
It requires #138875 to fix the build for Trusty, though they do not conflict and can merge in either order.
cc `@randomPoison`
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Fix std build for all NuttX targets. It is the single largest set of
failures on <https://does-it-build.noratrieb.dev/>. Although, ESP-IDF
also requires these same gates, there are other issues for those
targets.
This can verified be running `x check library/std --target=` for all
NuttX targets.
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Rename internal module from `statik` to `no_threads`
This module is named in reference to the keyword, but the term is somewhat overloaded. Rename it to more clearly describe it and avoid the misspelling.
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Move `fd` into `std::sys`
Move platform definitions of `fd` into `std::sys`, as part of https://github.com/rust-lang/rust/issues/117276.
Unlike other modules directly under `std::sys`, this is only available on some platforms and I have not provided a fallback abstraction for unsupported platforms. That is similar to how `std::os::fd` is gated to only supported platforms.
Also, fix the `unsafe_op_in_unsafe_fn` lint, which was allowed for the Unix fd impl. Since macro expansions from `std::sys::pal::unix::weak` trigger this lint, fix it there too.
cc `@joboet,` `@ChrisDenton`
try-job: x86_64-gnu-aux
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This module is named in reference to the keyword, but the term is
somewhat overloaded. Rename it to more clearly describe it and avoid the
misspelling.
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fix pthread-based tls on apple targets
Tries to fix #127773.
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The File is unwrapped to a Handle into an AnonPipe, and then that AnonPipe was unwrapped to a Handle into another AnonPipe. The second operation is entirely redundant.
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Fix UWP reparse point check
Fixes #138921
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Getting the address of `errno` should be just as cheap as `pthread_self()` and avoids having to use the expensive `Mutex` logic because it always results in a pointer.
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std: deduplicate `errno` accesses
By marking `__errno_location` as `#[ffi_const]` and `std::sys::os::errno` as `#[inline]`, this PR allows merging multiple calls to `io::Error::last_os_error()` into one.
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Start using `with_native_path` in `std::sys::fs`
Ideally, each platform should use their own native path type internally. This will, for example, allow passing a `CStr` directly to `std::fs::File::open` and therefore avoid the need for allocating a new null-terminated C string.
However, doing that for every function and platform all at once makes for a large PR that is way too prone to breaking. So this PR does some minimal refactoring which should help progress towards that goal. The changes are Unix-only and even then I avoided functions that require more changes so that this PR is just moving things around.
r? joboet
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Change the syntax of the internal `weak!` macro
Change the syntax to include parameter names and a trailing semicolon.
Motivation:
- Mirror the `syscall!` macro.
- Allow rustfmt to format it (when wrapped in parentheses, and when not inside `cfg_if!`).
- For better documentation (having the parameter names available in the source code is a bit nicer).
- Allow a future improvement to this macro where we can sometimes use the symbol directly when it's statically known to be available (and thus need the parameter names to be available), see https://github.com/rust-lang/rust/pull/136868.
r? libs
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wasm: increase default thread stack size to 1 MB
The default stack size for the [main thread is 1 MB as specified by linker options](https://github.com/rust-lang/rust/blob/38cf49dde8a5b0b284bb6dffd423d223c9f8f7a3/compiler/rustc_target/src/spec/base/wasm.rs#L14).
However, the default stack size for threads was only 64 kB.
This is surprisingly small and thus we increase it to 1 MB to match the main thread.
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By marking `__errno_location` as `#[ffi_const]` and `std::sys::os::errno` as `#[inline]`, this PR allows merging multiple calls to `io::Error::last_os_error()` into one.
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Currently, `write` for stdout and stderr on Trusty is implemented with
the semantics of `write_all`. Instead, call the underlying syscall only
once in `write` and use the default implementation of `write_all` like
other platforms. Also, implement `write_vectored` by adding support for
`IoSlice`.
Refactor stdin to reuse the unsupported type like #136769.
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We haven't had any Windows XP targets for a long while now...
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Change the syntax to include parameter names and a trailing semicolon.
Motivation:
- Mirror the `syscall!` macro.
- Allow rustfmt to format it (when wrapped in parentheses).
- For better documentation (having the parameter names available in
the source code is a bit nicer).
- Allow future improvements to this macro where we can sometimes use the
symbol directly when it's statically known to be available.
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Trusty: Fix build for anonymous pipes and std::sys::process
PRs #136842 (Add libstd support for Trusty targets), #137793 (Stablize anonymous pipe), and #136929 (std: move process implementations to `sys`) merged around the same time, so update Trusty to take them into account.
cc `@randomPoison`
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Implement some basics in UEFI fs
- Just getting some basics out of the way while waiting for #138236 to be merged.
- Adds `fs::canonicalize`. Should be same as absolute in case of UEFI since there is no symlink support and absolute path is guaranteed to be uniqe according to spec.
- Make `fs::lstat` same as `fs::stat`. Should be same since UEFI does not have symlink support.
- Implement `OptionOptions`.
cc ````@nicholasbishop```` ````@dvdhrm````
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UEFI does not have specific modes for create_new, truncate and append.
So those need to to be simulated after opening the file.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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- UEFI does not have symlinks. So lstat and stat should behave the same.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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- Should be same as absolute in UEFI since there are no symlinks.
- Also each absolute path representation should be unique according to
the UEFI specification.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
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PRs #136842 (Add libstd support for Trusty targets), #137793 (Stablize
anonymous pipe), and #136929 (std: move process implementations to
`sys`) merged around the same time, so update Trusty to take them into
account.
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Fix `FileType` `PartialEq` implementation on Windows
Fixes #138668
On Windows the [`FileType`](https://doc.rust-lang.org/stable/std/fs/struct.FileType.html) struct was deriving `PartialEq` which in turn means it was doing a bit-for-bit comparison on the file attributes and reparse point. This is wrong because `attributes` may contain many things unrelated to file type.
`FileType` on Windows allows for four possible combinations (see also [`FileTypeExt`](https://doc.rust-lang.org/stable/std/os/windows/fs/trait.FileTypeExt.html)): `file`, `dir`, `symlink_file` and `symlink_dir`. So the new implementation makes sure both symlink and directory information match (and only those things).
This could be considered just a bug fix but it is a behaviour change so someone from libs-api might want to FCP this (or might not)...
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std: uefi: fs: Implement mkdir
- Since there is no direct mkdir in UEFI, first check if a file/dir with same path exists and then create the directory.
cc `@dvdhrm` `@nicholasbishop`
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uefi: Add OwnedEvent abstraction
- Events are going to become quite important for Networking, so needed owned abstractions.
- Switch to OwnedEvent abstraction for Exit boot services event.
cc ````@nicholasbishop````
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std: move process implementations to `sys`
As per #117276, this moves the implementations of `Process` and friends out of the `pal` module and into the `sys` module, removing quite a lot of error-prone `#[path]` imports in the process (hah, get it ;-)). I've also made the `zircon` module a dedicated submodule of `pal::unix`, hopefully we can move some other definitions there as well (they are currently quite a lot of duplications in `sys`). Also, the `ensure_no_nuls` function on Windows now lives in `sys::pal::windows` – it's not specific to processes and shared by the argument implementation.
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Provide optional `Read`/`Write` methods for stdio
Override more of the default methods for `io::Read` and `io::Write` for stdio types, when efficient to do so, and deduplicate unsupported types.
Tracked in https://github.com/rust-lang/rust/issues/136756.
try-job: x86_64-msvc-1
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Rollup of 8 pull requests
Successful merges:
- #138018 (rustdoc: Use own logic to print `#[repr(..)]` attributes in JSON output.)
- #138294 (Mark some std tests as requiring `panic = "unwind"`)
- #138468 (rustdoc js: add nonnull helper and typecheck src-script.js)
- #138675 (Add release notes for 1.85.1)
- #138765 (Fix Thread::set_name on cygwin)
- #138786 (Move some driver code around)
- #138793 (target spec check: better error when llvm-floatabi is missing)
- #138822 (De-Stabilize `file_lock`)
r? `@ghost`
`@rustbot` modify labels: rollup
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Rollup of 7 pull requests
Successful merges:
- #138609 (Add stack overflow handler for cygwin)
- #138639 (Clean UI tests 2 of n)
- #138773 (catch_unwind intrinsic: document return value)
- #138782 (test(ui): add tuple-struct-where-clause-suggestion ui test for #91520)
- #138794 (expand: Do not report `cfg_attr` traces on macros as unused attributes)
- #138801 (triagebot: add autolabel rules for D-* and L-*)
- #138804 (Allow inlining for `Atomic*::from_ptr`)
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix Thread::set_name on cygwin
Just like Linux, Cygwin also sets a limitation to thread name.
https://github.com/cygwin/cygwin/blob/8e50c7af7c49819245739d6f626f6fecc394ef7f/winsup/cygwin/thread.cc#L3175
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As per #117276, this moves the implementations of `Process` and friends out of the `pal` module and into the `sys` module, removing quite a lot of error-prone `#[path]` imports in the process (hah, get it ;-)). I've also made the `zircon` module a dedicated submodule of `pal::unix`, hopefully we can move some other definitions there as well (they are currently quite a lot of duplications in `sys`). Also, the `ensure_no_nuls` function on Windows now lives in `sys::pal::windows` – it's not specific to processes and shared by the argument implementation.
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Add stack overflow handler for cygwin
The cygwin runtime handles stack overflow exception and converts it to `SIGSEGV`, but the passed `si_addr` is obtained from `ExceptionInformation[1]` which is actually an undocumented value when stack overflows. Thus I choose to use Windows API directly to register handler, just like how std does on native Windows. The code is basically copied from the Windows one.
Ref:
* https://github.com/cygwin/cygwin/blob/5ec497dc80bcb7ad78cc07bb919b2624b361f017/winsup/cygwin/exceptions.cc#L822-L823
* https://learn.microsoft.com/zh-cn/windows/win32/api/winnt/ns-winnt-exception_record
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Fix build failure on Trusty
This target is currently broken due to update to 2024 editon.
```console
$ cargo new --lib repro
$ cd repro
$ cargo check -Z build-std=std --target aarch64-unknown-trusty
Compiling std v0.0.0 ($HOME/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std)
error: extern blocks must be unsafe
--> $HOME/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys/random/trusty.rs:1:1
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1 | / extern "C" {
2 | | fn trusty_rng_secure_rand(randomBuffer: *mut core::ffi::c_void, randomBufferLen: libc::size_t);
3 | | }
| |_^
error: could not compile `std` (lib) due to 1 previous error
```
cc ```@randomPoison``` ```@ahomescu``` ([target maintainers](https://doc.rust-lang.org/nightly/rustc/platform-support/trusty.html#target-maintainers))
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This seems to be the pattern for newer pal stdio types.
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Match what `std::io::Empty` does, since it is very similar. However,
still evaluate the `fmt::Arguments` in `write_fmt` to be consistent with
other platforms.
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The default stack size for the main thread is 1 MB as specified by linker options.
However, the default stack size for threads was only 64 kB.
This is surprisingly small and thus we increase it to 1 MB to match the
main thread.
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Rollup of 7 pull requests
Successful merges:
- #136320 (exit: document interaction with C)
- #138080 (Leave a breadcrumb towards bootstrap config documentation in `bootstrap.toml`)
- #138301 (Implement `read_buf` for Hermit)
- #138569 (rustdoc-json: Add tests for `#[repr(...)]`)
- #138635 (Extract `for_each_immediate_subpat` from THIR pattern visitors)
- #138642 (Unvacation myself)
- #138644 (Add `#[cfg(test)]` for Transition in dfa in `rustc_transmute`)
r? `@ghost`
`@rustbot` modify labels: rollup
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