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Add std support to cygwin target
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Signed-off-by: Ookiineko <chiisaineko@protonmail.com>
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Make `std::os::darwin` public
I'm not sure of the reasoning behind them not being public before, but I think they should be, just like `std::os::ios` and `std::os::macos` are public.
Additionally, I've merged their source code, as it was otherwise just a bunch of unnecessary duplication.
Ultimately, I've done this PR to fix `./x build library --target=aarch64-apple-tvos,aarch64-apple-watchos,aarch64-apple-visionos`, as that currently fails because of dead code warnings.
Since you reviewed https://github.com/rust-lang/rust/pull/121419
r? davidtwco
Fixes https://github.com/rust-lang/rust/issues/121640.
`@rustbot` label O-tvos O-watchos O-visionos
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Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
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This includes `std::os::darwin::fs`, which is re-exported under
`std::os::macos::fs` and `std::os::ios::fs`.
`std::os::darwin::raw` is not exposed, which means that
`MetadataExt::as_raw_stat` isn't available on tvOS, visionOS and
watchOS.
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This provides a list of locations to hunt down issues in.
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The functionality available on Apple platforms are very similar, and
were duplicated for each platform.
Additionally, this fixes a warning when compiling the standard library
for tvOS, watchOS and visionOS by marking the corresponding code as
dead code.
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The HermitOS' IO interface is similiar to Unix. Consequently,
this PR synchronize the FD implementation between both.
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Signed-off-by: Ryan Levick <me@ryanlevick.com>
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Signed-off-by: Ryan Levick <me@ryanlevick.com>
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This reverts commit 31ecf341250a889ac1154b2cbe3f0b97f9d008c1.
Co-authored-by: Ryan Levick <me@ryanlevick.com>
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Signed-off-by: Ryan Levick <me@ryanlevick.com>
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- Hide Docs
- Use repr_unpacked error
Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>
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- Update Example
- Add thread_parking to sys::uefi
- Fix unsafe in unsafe errors
- Improve docs
- Improve os/exit
- Some asserts
- Switch back to atomics
Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com>
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Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
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Implemented modules:
1. alloc
2. os_str
3. env
4. math
Tracking Issue: https://github.com/rust-lang/rust/issues/100499
API Change Proposal: https://github.com/rust-lang/libs-team/issues/87
This was originally part of https://github.com/rust-lang/rust/pull/100316. Since
that PR was becoming too unwieldy and cluttered, and with suggestion
from @dvdhrm, I have extracted a minimal std implementation to this PR.
Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
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Xous has no C FFI. Instead, all FFI is done via syscalls that are
specified in Rust. Add these FFI calls to libstd, as well as some of the
currently-supported syscalls.
This enables Rust programs to interact with the Xous operating system
while avoiding adding an extra dependency to libstd.
Signed-off-by: Sean Cross <sean@xobs.io>
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Add support for QNX Neutrino to standard library
This change:
- adds standard library support for QNX Neutrino (7.1).
- upgrades `libc` to version `0.2.139` which supports QNX Neutrino
`@gh-tr`
⚠️ Backtraces on QNX require https://github.com/rust-lang/backtrace-rs/pull/507 which is not yet merged! (But everything else works without these changes) ⚠️
Tested mainly with a x86_64 virtual machine (see qnx-nto.md) and partially with an aarch64 hardware (some tests fail due to constrained resources).
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Co-authored-by: gh-tr <troach@qnx.com>
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By moving the IO traits, the RustyHermit support is harmonized to
of other operating systems.
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`std::os::fd` defines types like `OwnedFd` and `RawFd` and is common
between Unix and non-Unix platforms that share a basic file-descriptor
concept. Rust currently uses this internally to simplify its own code,
but it would be useful for external users in the same way, so make it
public.
This means that `OwnedFd` etc. will all appear in three places, for
example on unix platforms:
- `std::os::fd::OwnedFd`
- `std::os::unix::io::OwnedFd`
- `std::os::unix::prelude::OwnedFd`
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for linux and android
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Co-authored-by: Ian Chamberlain <ian.h.chamberlain@gmail.com>
Co-authored-by: Mark Drobnak <mark.drobnak@gmail.com>
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The initial stdlib modifications for L4Re just used the linux specifics
directly because they were reasonably close to L4Re's behavior.
However, this breaks when Linux-specific code relies on code that is
only available for the linux target, such as in #81825.
Put L4Re into its own platform to avoid such breakage in the future.
This uses the Linux-specific code as a starting point, which seems to be
in line with other OSes with a unix-y interface such as Fuchsia.
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SOLID[1] is an embedded development platform provided by Kyoto
Microcomputer Co., Ltd. This commit introduces a basic Tier 3 support
for SOLID.
# New Targets
The following targets are added:
- `aarch64-kmc-solid_asp3`
- `armv7a-kmc-solid_asp3-eabi`
- `armv7a-kmc-solid_asp3-eabihf`
SOLID's target software system can be divided into two parts: an
RTOS kernel, which is responsible for threading and synchronization,
and Core Services, which provides filesystems, networking, and other
things. The RTOS kernel is a μITRON4.0[2][3]-derived kernel based on
the open-source TOPPERS RTOS kernels[4]. For uniprocessor systems
(more precisely, systems where only one processor core is allocated for
SOLID), this will be the TOPPERS/ASP3 kernel. As μITRON is
traditionally only specified at the source-code level, the ABI is
unique to each implementation, which is why `asp3` is included in the
target names.
More targets could be added later, as we support other base kernels
(there are at least three at the point of writing) and are interested
in supporting other processor architectures in the future.
# C Compiler
Although SOLID provides its own supported C/C++ build toolchain, GNU Arm
Embedded Toolchain seems to work for the purpose of building Rust.
# Unresolved Questions
A μITRON4 kernel can support `Thread::unpark` natively, but it's not
used by this commit's implementation because the underlying kernel
feature is also used to implement `Condvar`, and it's unclear whether
`std` should guarantee that parking tokens are not clobbered by other
synchronization primitives.
# Unsupported or Unimplemented Features
Most features are implemented. The following features are not
implemented due to the lack of native support:
- `fs::File::{file_attr, truncate, duplicate, set_permissions}`
- `fs::{symlink, link, canonicalize}`
- Process creation
- Command-line arguments
Backtrace generation is not really a good fit for embedded targets, so
it's intentionally left unimplemented. Unwinding is functional, however.
## Dynamic Linking
Dynamic linking is not supported. The target platform supports dynamic
linking, but enabling this in Rust causes several problems.
- The linker invocation used to build the shared object of `std` is
too long for the platform-provided linker to handle.
- A linker script with specific requirements is required for the
compiled shared object to be actually loadable.
As such, we decided to disable dynamic linking for now. Regardless, the
users can try to create shared objects by manually invoking the linker.
## Executable
Building an executable is not supported as the notion of "executable
files" isn't well-defined for these targets.
[1] https://solid.kmckk.com/SOLID/
[2] http://ertl.jp/ITRON/SPEC/mitron4-e.html
[3] https://en.wikipedia.org/wiki/ITRON_project
[4] https://toppers.jp/
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Remove unnecessary conditional `cfg(target_os)` for `redox` and `vxworks`
`redox` and `vxworks` are now part of target_family `unix`, thus `cfg(unix)` already implies `cfg(target_os="redox")` and `cfg(target_os="vxworks")`
https://github.com/rust-lang/rust/blob/35dbef235048f9a2939dc20effe083ca483c37ff/compiler/rustc_target/src/spec/redox_base.rs#L26
https://github.com/rust-lang/rust/blob/35dbef235048f9a2939dc20effe083ca483c37ff/compiler/rustc_target/src/spec/vxworks_base.rs#L27
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`redox` and `vxworks` are part of target_family `unix`, thus `cfg(unix)` already implies `cfg(target_os="redox")` and `(target_os="vxworks")`
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