Commit graph

12248 commits

Author SHA1 Message Date
Dylan DPC
21411c4db5
Rollup merge of #115053 - waywardmonkeys:augment-type-keyword-docs, r=cuviper
docs: Add example, reference link for `type` keyword.

Fixes #114281.
2023-08-23 05:35:16 +00:00
Tomoaki Kawada
65217a72b0 kmc-solid: Import std::sync::PoisonError in std::sys::solid::os 2023-08-23 11:44:18 +09:00
Tyler Mandry
4c14ca3141 Bump backtrace to 0.3.69 2023-08-22 15:01:14 -07:00
Urgau
7ee77b5d1b Add support for ptr::write for the invalid_reference_casting lint 2023-08-22 15:47:29 +02:00
Sean Cross
6c32a64962 std: enable feature(slice_ptr_len) on xous
Xous passes slice pointers around in order to manipulate memory.
This is feature-gated behind `slice_ptr_len`. Xous is currently
the only target to use this feature, so gate it behind an OS flag.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:39 +08:00
Sean Cross
6413844a22 std: xous: add support for locks
Add support for Condvar, Mutex, and RWLock. These are all backed by the
ticktimer server.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
46a4ec3a71 std: xous: add thread_local_key
Add an implementation of thread local storage. This uses a container
that is pointed to by the otherwise-unsed `$tp` register. This container
is allocated on-demand, so threads that use no TLS will not allocate
this extra memory.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
d36e516478 std: xous: add thread support
Add initial support for threads on Xous. This includes thread creation
and joining.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
efa470d0ae std: xous: add support for time
Add support for determining the current time. This connects to the
ticktimer server in order to get the system uptime.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
4af7d2cf8d std: xous: add output support for stdio
Add support for stdout. This enables basic console printing via
`println!()`. Output is written to the log server.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
10dad67f89 std: xous: add services support
Xous has a concept of `services` that provide various features.
Processes may connect to these services by name or by address. Most
services require a name server in order to connect.

Add a file with the most common services, and provide a way to connect
to a service by querying the name server.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
dfff5bf62f panic_abort: call __rust_abort on xous
Xous does not properly handle invalid instructions. Instead, call
`__rust_abort` and exit normally.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
823cba9cc8 std: xous: add alloc support
Basic alloc support on Xous is supported by the `dlmalloc` crate. This
necessitates bumping the dlmalloc version to 0.2.4.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
112d101f88 std: process: skip tests on xous
Xous does not yet support spawning processes.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
0b800577d1 std: fs: skip fs tests on xous
The xous filesystem support is not yet ready for merging.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
778e8038a2 std: net: skip tests on xous
Network functionality is not yet ready for merging.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
9afc1e958b std: xous: the basics of os
Add the basics to get the operating system running, including how to
exit the operating system.

Since Xous has no libc, there is no default entrypoint. Add a `_start`
entrypoint to the system-specific os module.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 20:25:38 +08:00
Sean Cross
7892cfb60e std: xous: add os-specific ffi calls
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>
2023-08-22 20:25:38 +08:00
Mark Rousskov
c8522adb97 Replace version placeholders with 1.73.0 2023-08-22 06:57:00 -04:00
Ralf Jung
6d65379e7a clarify what you cannot do 2023-08-22 09:00:07 +02:00
Ralf Jung
2cb9d3def2
typos and wording
Co-authored-by: Dan Gohman <dev@sunfishcode.online>
2023-08-22 08:57:38 +02:00
Sean Cross
61cfb1734a libstd: add xous to libstd
Add the `xous` target to libstd. Currently this defers everything to the
`unsupported` target.

Signed-off-by: Sean Cross <sean@xobs.io>
2023-08-22 08:20:04 +08:00
bors
795ade084a Auto merge of #113365 - dima74:diralik/add-deprecated-suggestions, r=workingjubilee
Add `suggestion` for some `#[deprecated]` items

Consider code:
```rust
fn main() {
    let _ = ["a", "b"].connect(" ");
}
```

Currently it shows deprecated warning:
```rust
warning: use of deprecated method `std::slice::<impl [T]>::connect`: renamed to join
 --> src/main.rs:2:24
  |
2 |     let _ = ["a", "b"].connect(" ");
  |                        ^^^^^^^
  |
  = note: `#[warn(deprecated)]` on by default
```

This PR adds `suggestion` for `connect` and some other deprecated items, so the warning will be changed to this:
```rust
warning: use of deprecated method `std::slice::<impl [T]>::connect`: renamed to join
 --> src/main.rs:2:24
  |
2 |     let _ = ["a", "b"].connect(" ");
  |                        ^^^^^^^
  |
  = note: `#[warn(deprecated)]` on by default
help: replace the use of the deprecated method
  |
2 |     let _ = ["a", "b"].join(" ");
  |                        ^^^^
```
2023-08-22 00:02:50 +00:00
Michael Howell
88bd304a10 docs: add alias log1p to ln_1p
This is what the function is called in several other languages:

* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log1p
* https://numpy.org/doc/stable/reference/generated/numpy.log1p.html
* https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/log1p-log1pf-log1pl2?view=msvc-170

It also confused people at URLO: https://users.rust-lang.org/t/64-bit-trigonometry/98599/27
2023-08-21 10:45:47 -07:00
Bruce Mitchener
53245709f6 docs: Add example, reference link for type keyword.
Fixes #114281.
2023-08-21 20:00:43 +07:00
Ralf Jung
0188b9cbb4 try to clarify wording 2023-08-21 13:54:03 +02:00
Dmitry Murzin
07b57f9a7a
Add suggestion for some #[deprecated] items 2023-08-21 12:51:51 +03:00
ShE3py
f8a2f31ae4
Add data race test to std::env::{get, set} 2023-08-20 21:50:45 +02:00
Matthias Krüger
2bca4b5913
Rollup merge of #115000 - RalfJung:custom-mir-call, r=compiler-errors,JakobDegen
custom_mir: change Call() terminator syntax to something more readable

I find our current syntax very hard to read -- I cannot even remember the order of arguments, and having the "next block" *before* the actual function call is very counter-intuitive IMO. So I suggest we use `Call(ret_val = function(v), next_block)` instead.

r? `@JakobDegen`
2023-08-20 08:34:05 +02:00
Matthias Krüger
7b66abe5a2
Rollup merge of #114968 - ShE3py:unix-getsetenv-ub, r=thomcc
Fix UB in `std::sys::os::getenv()`

Fixes #114949.

Reduced the loops to 1k iterations (100k was taking way too long), Miri no longer shows any UB.

`@rustbot` label +A-process +C-bug +I-unsound +O-unix
2023-08-20 08:34:03 +02:00
bors
9c699a40cc Auto merge of #113167 - ChAoSUnItY:redundant_explicit_link, r=GuillaumeGomez
rustdoc: Add lint `redundant_explicit_links`

Closes #87799.
- Lint warns by default
- Reworks link parser to cache original link's display text

r? `@jyn514`
2023-08-20 01:04:22 +00:00
Matthias Krüger
d761a5fe11
Rollup merge of #114983 - crlf0710:formatmsg, r=ChrisDenton
Usage zero as language id for `FormatMessageW()`

This switches the language selection from using system language (note that this might be different than application language, typically stored as thread ui language) to use `FormatMessageW` default search strategy, which is `neutral` first, then `thread ui lang`, then `user language`, then `system language`, then `English`. (See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-formatmessagew)

This allows the Rust program to take more control of `std::io::Error`'s message field, by setting up thread ui language themselves before hand (which many programs already do).
2023-08-20 00:28:32 +02:00
Matthias Krüger
cbcdf7580b
Rollup merge of #114973 - shepmaster:std-provide-value, r=Amanieu
Expose core::error::request_value in std

I think this was simply forgotten in #113464.

/cc ``@waynr``

r? ``@Amanieu``
2023-08-20 00:28:32 +02:00
Matthias Krüger
cad8f8cbff
Rollup merge of #114950 - xfix:inline-cstr-from-ptr, r=cuviper
Inline strlen_rt in CStr::from_ptr

This enables LLVM to optimize this function as if it was strlen (LLVM knows what it does, and can avoid calling it in certain situations) without having to enable std-aware LTO. This is essentially doing what https://github.com/rust-lang/rust/pull/90007 did, except updated for this function being `const`.

Pretty sure it's safe to roll-up, considering last time I did make this change it didn't affect performance (`CStr::from_ptr` isn't really used all that often in Rust code that is checked by rust-perf).
2023-08-20 00:28:31 +02:00
Matthias Krüger
0cc4b55a12
Rollup merge of #114605 - Easyoakland:hash-collection-doc, r=thomcc
Increase clarity about Hash - Eq consistency in HashMap and HashSet docs

As discussed [here](https://users.rust-lang.org/t/what-hapens-if-hash-and-partialeq-dont-match-when-using-hashmap/98052/13) the description of logic errors in `HashMap` and `HashSet` does not explicitly apply to
```text
k1 == k2 -> hash(k1) == hash(k2)
```
but this is likely what is intended.

This PR is a small doc change to correct this.

r? rust-lang/libs
2023-08-20 00:28:31 +02:00
Ralf Jung
7a6346660e custom_mir: change Call() terminator syntax to something more readable 2023-08-19 22:41:33 +02:00
Kevin Reid
3dde25edc4 Correct and expand documentation of handle_alloc_error and set_alloc_error_hook.
Add the following facts:

* `handle_alloc_error` may panic instead of aborting.
* What happens if a hook returns rather than diverging.
* A hook may panic. (This was already demonstrated in an example,
  but not stated in prose.)
* A hook must be sound to call — it cannot assume that it is only
  called by the runtime, since its function pointer can be retrieved by
  safe code.
2023-08-19 13:27:03 -07:00
Charles Lew
4504cc513f Usage zero as language id for FormatMessageW() 2023-08-19 14:32:15 +08:00
Matthias Krüger
8e0a8cdecb
Rollup merge of #114977 - kpreid:modulo, r=thomcc
Add `modulo` and `mod` as doc aliases for `rem_euclid`.

When I was learning Rust I looked for “a modulo function” and couldn’t find one, so thought I had to write my own; it wasn't at all obvious that a function with “rem” in the name was the function I wanted. Hopefully this will save the next learner from that.

However, it does have the disadvantage that the top results in rustdoc for “mod” are now these aliases instead of the Rust keyword, which probably isn't ideal.
2023-08-19 03:27:01 +02:00
Matthias Krüger
8d52b4d2f3
Rollup merge of #114971 - kpreid:trig, r=joshtriplett
Add doc aliases for trigonometry and other f32,f64 methods.

These are common alternate names, usually a less-abbreviated form, for the operation; e.g. `arctan` instead of `atan`. Prompted by <https://users.rust-lang.org/t/64-bit-trigonometry/98599>
2023-08-19 03:27:00 +02:00
Kevin Reid
2c21635382 Add modulo and mod as doc aliases for rem_euclid.
When I was learning Rust I looked for “a modulo function” and couldn’t
find one, so thought I had to write my own; it wasn't at all obvious
that a function with “rem” in the name was the function I wanted.
Hopefully this will save the next learner from that.

However, it does have the disadvantage that the top results in rustdoc
for “mod” are now these aliases instead of the Rust keyword, which
probably isn't ideal.
2023-08-18 12:28:27 -07:00
bors
d06ca0ffaf Auto merge of #114591 - joboet:thread_parking_ordering_fix, r=thomcc
Synchronize with all calls to `unpark` in id-based thread parker

[The documentation for `thread::park`](https://doc.rust-lang.org/nightly/std/thread/fn.park.html#memory-ordering) guarantees that "park synchronizes-with all prior unpark operations". In the id-based thread parking implementation, this is not implemented correctly, as the state variable is reset with a simple store, so there will not be a *synchronizes-with* edge if an `unpark` happens just before the reset. This PR corrects this, replacing the load-check-reset sequence with a single `compare_exchange`.
2023-08-18 19:03:38 +00:00
Jake Goulding
74942daf71 Expose core::error::request_value in std
I think this was simply forgotten in #113464.
2023-08-18 13:06:53 -04:00
Kevin Reid
c353dbd57f Add doc aliases for trigonometry and other f32,f64 methods.
These are common alternate names, usually a less-abbreviated form,
for the operation; e.g. `arctan` instead of `atan`. Prompted by
<https://users.rust-lang.org/t/64-bit-trigonometry/98599>
2023-08-18 08:08:35 -07:00
Kevin Reid
2bccf1e296 Go into more detail about panicking in drop. 2023-08-18 07:48:10 -07:00
ShE3py
83c713bff0
Fix UB in std::sys::os::getenv() 2023-08-18 16:04:53 +02:00
Jorge Aparicio
f58b2548dc QNX: pass a truncated thread name to the OS
The maximum length the thread name can have is `_NTO_THREAD_NAME_MAX`
2023-08-18 14:47:12 +02:00
Ben Schulz
a38ea96825 Remove Drop impl of mpsc Receiver and (Sync)Sender 2023-08-18 14:46:20 +02:00
Kyle Lin
23c9a4a1ca resolve conflicts 2023-08-18 15:31:58 +08:00
Kyle Lin
15ece93e34 relax redundancy constraint 2023-08-18 15:31:32 +08:00