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As suggested in the discussion of PR #43972, std should provide a uniform API to
all platforms. Since there's no networking on L4Re, this now is a module in
`sys::net` providing types and functions/methods returning an error for each
action.
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This commit adds the needed modifications to compile the std crate
for the L4 Runtime environment (L4Re).
A target for the L4Re was introduced in commit:
c151220a84e40b65e45308cc0f3bbea4466d3acf
In many aspects implementations for linux also apply for the L4Re
microkernel.
Two uncommon characteristics had to be resolved:
* L4Re has no network funktionality
* L4Re has a maximum stacksize of 1Mb for threads
Co-authored-by: Sebastian Humenda <sebastian.humenda@tu-dresden.de>
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* Match definition of c_char in os/raw.rs with the libc definition
Due to historic reasons, os/raw.rs redefines types for c_char from
libc, but these didn't match. Now they do :).
* Enable signal reset on exec for L4Re
L4Re has full signal emulation and hence it needs to reset the
signal set of the child with sigemptyset. However, gid and uid
should *not* be set.
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Avoid unchecked cast from `u64` to `i64`. Use `try_into()` for checked
cast. (On Unix, cast to `time_t` instead of `i64`.)
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Apparently `dladdr` can succeed but still give you NULL pointers!
Closes #44379
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This programs compiled without -g on macOS still provide the resolve to
actual symbols, instead of `<unknown>` everywhere.
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Brings in a few fixes for wasm/asmjs
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std: Handle OS errors when joining threads
Also add to the documentation that the `join` method can panic.
cc #34971
cc #43539
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Also add to the documentation that the `join` method can panic.
cc #34971
cc #43539
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This fixes headings reading "Unsafety" and "Example", they should be
"Safety" and "Examples" according to RFC 1574.
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`.raw_os_error()` (called in `spawn()`) returned None, so this produced an incorrect error.
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Refactoring: move net specific file descriptor methods
Move the implementations of net specific file descriptor methods from
io to net. This makes it easier to exclude net at all if it is not needed
for a target.
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Fix typos & us spellings
Fixing some typos and non en-US spellings.
(Update of PR https://github.com/rust-lang/rust/pull/42812 )
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Move the implementations of net specific file descriptior implementations
to net. This makes it easier to exclude net at all if not needed for a
target.
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r=QuietMisdreavus
Clarify writable behavior of readonly-named `Permissions` methods.
Opened primarily to fix https://github.com/rust-lang/rust/issues/41984.
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r=Mark-Simulacrum
use field init shorthand EVERYWHERE
Like #43008 (f668999), but [(lacking reasons to be more timid)](https://github.com/rust-lang/rust/pull/43008#issuecomment-312463564) _much more aggressive_.
r? @Mark-Simulacrum
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Like #43008 (f668999), but _much more aggressive_.
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Make backtraces work on Redox, copying Unix implementation
The `backtrace/` directory here is the same as the Unix one, except for adding an implementation of `get_executable_filename`.
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Handle DNS label compression in more places in Redox name resolution
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Fix some typos
Follow up of #43794
If refined my script a little bit and found some more.
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Expose all OS-specific modules in libstd doc.
1. Uses the special `--cfg dox` configuration passed by rustbuild when running `rustdoc`. Changes the `#[cfg(platform)]` into `#[cfg(any(dox, platform))]` so that platform-specific API are visible to rustdoc.
2. Since platform-specific implementations often won't compile correctly on other platforms, `rustdoc` is changed to apply `everybody_loops` to the functions during documentation and doc-test harness.
3. Since platform-specific code are documented on all platforms now, it could confuse users who found a useful API but is non-portable. Also, their examples will be doc-tested, so must be excluded when not testing on the native platform. An undocumented attribute `#[doc(cfg(...))]` is introduced to serve the above purposed.
Fixes #24658 (Does _not_ fully implement #1998).
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Fix some typos
I wrote a really naive script and found those typos in the documentation.
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Fix typo corersponding -> corresponding
I was reading the documentation of __Struct std::os::unix::net::UnixListener__ when I saw a typo inside.
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Fixed mutable vars being marked used when they weren't
#### NB : bootstrapping is slow on my machine, even with `keep-stage` - fixes for occurances in the current codebase are <s>in the pipeline</s> done. This PR is being put up for review of the fix of the issue.
Fixes #43526, Fixes #30280, Fixes #25049
### Issue
Whenever the compiler detected a mutable deref being used mutably, it marked an associated value as being used mutably as well. In the case of derefencing local variables which were mutable references, this incorrectly marked the reference itself being used mutably, instead of its contents - with the consequence of making the following code emit no warnings
```
fn do_thing<T>(mut arg : &mut T) {
... // don't touch arg - just deref it to access the T
}
```
### Fix
Make dereferences not be counted as a mutable use, but only when they're on borrows on local variables.
#### Why not on things other than local variables?
* Whenever you capture a variable in a closure, it gets turned into a hidden reference - when you use it in the closure, it gets dereferenced. If the closure uses the variable mutably, that is actually a mutable use of the thing being dereffed to, so it has to be counted.
* If you deref a mutable `Box` to access the contents mutably, you are using the `Box` mutably - so it has to be counted.
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Fix a number of failing tests on Solaris and SPARC
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Implement AsRawFd for Stdin, Stdout, and Stderr
https://github.com/rust-lang/rfcs/issues/2074
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This fixes a handful of long-failing tests.
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This commit adds a disabled builder which will run all tests for the standard
library for aarch64 in a QEMU instance. Once we get enough capacity to run this
on Travis this can be used to boost our platform coverage of AArch64
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