replace STATX_ALL with (STATX_BASIC_STATS | STATX_BTIME) as former is deprecated
STATX_ALL was deprecated in 581701b7ef and suggested to use equivalent (STATX_BASIC_STATS | STATX_BTIME) combination, to prevent future surprises.
- Since in almost all cases, there will only be 1 UEFI shell, share the
shell handle between all functions that require it.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
Rollup of 3 pull requests
Successful merges:
- #126207 (std::unix::stack_overflow::drop_handler addressing todo through libc …)
- #131864 (Never emit `vptr` for empty/auto traits)
- #131870 (compiletest: Store test collection context/state in two structs)
r? `@ghost`
`@rustbot` modify labels: rollup
Abstract the state type for futexes
In the same way that we expose `SmallAtomic` and `SmallPrimitive` to allow Windows to use a value other than an `AtomicU32` for its futex state, switch the primary futex state type from `AtomicU32` to `futex::Futex`. The `futex::Futex` type should be usable as an atomic value with underlying primitive type equal to `futex::Primitive`. (`SmallAtomic` is also renamed to `SmallFutex`).
This allows supporting the futex API on systems where the underlying kernel futex implementation requires more user state than simply an `AtomicU32`.
All in-tree futex implementations simply define {`Futex`,`Primitive`} directly as {`AtomicU32`,`u32`}.
Avoid use imports in `thread_local_inner!`
Previously, the use imports in `thread_local_inner!` can shadow user-provided types or type aliases of the names `Storage`, `EagerStorage`, `LocalStorage` and `LocalKey`. This PR fixes that by dropping the use imports and instead refer to the std-internal types via fully qualified paths. A basic test is added to ensure `thread_local!`s with static decls with type names that match the aforementioned std-internal type names can successfully compile.
Fixes#131863.
Various fixes for Xous
This patchset includes several fixes for Xous that have crept in over the last few months:
* The `adjust_process()` syscall was incorrect
* Warnings have started appearing in `alloc` -- adopt the same approach as wasm, until wasm figures out a workaround
* Dead code warnings have appeared in the networking code. Add `allow(dead_code)` as these structs are used as IPC values
* Add support for `args` and `env`, which have been useful for running tests
* Update `unwinding` to `0.2.3` which fixes the recent regression due to changes in `asm!()` code
In the same way that we expose SmallAtomic and SmallPrimitive to allow
Windows to use a value other than an AtomicU32 for its futex state, this
patch switches the primary futex state type from AtomicU32 to
futex::Atomic. The futex::Atomic type should be usable as an atomic
value with underlying primitive type equal to futex::Primitive.
This allows supporting the futex API on systems where the underlying
kernel futex implementation requires more state than simply an
AtomicU32.
All in-tree futex implementations simply define {Atomic,Primitive}
directly as {AtomicU32,u32}.
uefi: Implement getcwd and chdir
- Using EFI Shell Protocol. These functions do not make much sense unless a shell is present.
- Return the exe dir in case shell protocol is missing.
r? `@joboet`
- Using EFI Shell Protocol. These functions do not make much sense
unless a shell is present.
- Return the exe dir in case shell protocol is missing.
Signed-off-by: Ayush Singh <ayush@beagleboard.org>
std::fs::get_path freebsd update.
what matters is we re doing the right things as doing sizeof, rather than passing KINFO_FILE_SIZE (only defined on intel architectures), the kernel
making sure it matches the expectation in its side.
The allocator on Xous is now throwing warnings because the allocator
needs to be mutable, and allocators hand out mutable pointers, which
the `static_mut_refs` lint now catches.
Give the same treatment to Xous as wasm, at least until a solution is
devised for fixing the warning on wasm.
Signed-off-by: Sean Cross <sean@xobs.io>
Process arguments and environment variables are both passed by way of
Application Parameters. These are a TLV format that gets passed in as
the second process argument.
This patch combines both as they are very similar in their decode.
Signed-off-by: Sean Cross <sean@osdyne.com>
Migrate lib's `&Option<T>` into `Option<&T>`
Trying out my new lint https://github.com/rust-lang/rust-clippy/pull/13336 - according to the [video](https://www.youtube.com/watch?v=6c7pZYP_iIE), this could lead to some performance and memory optimizations.
Basic thoughts expressed in the video that seem to make sense:
* `&Option<T>` in an API breaks encapsulation:
* caller must own T and move it into an Option to call with it
* if returned, the owner must store it as Option<T> internally in order to return it
* Performance is subject to compiler optimization, but at the basics, `&Option<T>` points to memory that has `presence` flag + value, whereas `Option<&T>` by specification is always optimized to a single pointer.
Android: Debug assertion after setting thread name
While `prctl` cannot fail if it points to a valid buffer, it's still better to assert the result as it's done for other places.
std: replace `LazyBox` with `OnceBox`
This PR replaces the `LazyBox` wrapper used to allocate the pthread primitives with `OnceBox`, which has a more familiar API mirroring that of `OnceLock`. This cleans up the code in preparation for larger changes like #128184 (from which this PR was split) and allows some neat optimizations, like avoid an acquire-load of the allocation pointer in `Mutex::unlock`, where the initialization of the allocation must have already been observed.
Additionally, I've gotten rid of the TEEOS `Condvar` code, it's just a duplicate of the pthread one anyway and I didn't want to repeat myself.
what matters is we re doing the right things as doing sizeof, rather than
KINFO_FILE_SIZE (only defined on intel architectures), the kernel
making sure it matches the expectation in its side.
This PR replaces the `LazyBox` wrapper used to allocate the pthread primitives with `OnceBox`, which has a more familiar API mirroring that of `OnceLock`. This cleans up the code in preparation for larger changes like #128184 (from which this PR was split) and allows some neat optimizations, like avoid an acquire-load of the allocation pointer in `Mutex::unlock`, where the initialization of the allocation must have already been observed.
Additionally, I've gotten rid of the TEEOS `Condvar` code, it's just a duplicate of the pthread one anyway and I didn't want to repeat myself.
Revert Break into the debugger on panic (129019)
This was talked about a bit at a recent libs meeting. While I think experimenting with this is worthwhile, I am nervous about this new behaviour reaching stable. We've already reverted on one tier 1 platform (Linux, https://github.com/rust-lang/rust/pull/130810) which means we have differing semantics on different tier 1 platforms. Also the fact it triggers even when `catch_unwind` is used to catch the panic means it can be very noisy in some projects.
At the very least I think it could use some more discussion before being instantly stable. I think this could maybe be re-landed with an environment variable to control/override the behaviour. But that part would likely need a libs-api decision.
cc ````@workingjubilee```` ````@kromych````
Since the stabilization in #127679 has reached stage0, 1.82-beta, we can
start using `&raw` freely, and even the soft-deprecated `ptr::addr_of!`
and `ptr::addr_of_mut!` can stop allowing the unstable feature.
I intentionally did not change any documentation or tests, but the rest
of those macro uses are all now using `&raw const` or `&raw mut` in the
standard library.
Rollup of 6 pull requests
Successful merges:
- #130549 (Add RISC-V vxworks targets)
- #130595 (Initial std library support for NuttX)
- #130734 (Fix: ices on virtual-function-elimination about principal trait)
- #130787 (Ban combination of GCE and new solver)
- #130809 (Update llvm triple for OpenHarmony targets)
- #130810 (Don't trap into the debugger on panics under Linux)
r? `@ghost`
`@rustbot` modify labels: rollup
Initial std library support for NuttX
This PR add the initial libstd support for NuttX platform (Tier 3), currently it depends on https://github.com/rust-lang/libc/pull/3909 which provide the essential libc definitions.
Add `File` constructors that return files wrapped with a buffer
In addition to the light convenience, these are intended to raise visibility that buffering is something you should consider when opening a file, since unbuffered I/O is a common performance footgun to Rust newcomers.
ACP: https://github.com/rust-lang/libs-team/issues/446
Tracking Issue: #130804
