Previously Cargo would hardlink all the dependencies into the "root" as
foo.dll and the `toplevel` array would get populated with these, but
that's no longer the case. Instead, cargo will only do this for the
final artifacts/final libraries.
Rustbuild is updated to continue looping through the artifacts mentioned
instead of early-returning. This should fix the bug.
@alexcrichton found the cause of this and suggested this fix.
Do not allow LLVM to increase a TLS's alignment on macOS.
This addresses the various TLS segfault on macOS 10.10.
Fix#51794.
Fix#51758.
Fix#50867.
Fix#48866.
Fix#46355.
Fix#44056.
Implement PartialEq between &str and OsString
This fixes#49854.
It allows equality comparison between `OsString` values and `str` references, such as `os_string == "something"`.
Make the public API of the alloc crate a subset of std
This only affects **unstable** APIs.
I plan to submit an RFC proposing to stabilize the crate. The reason it isn’t stable yet (https://github.com/rust-lang/rust/issues/27783) is in case we end up merging the standard library crates into one. However the `core` crate is already stable, so if that happens we’ll need to keep it working somehow (likely by making replacing its contents by `pub use` items). We can do the same for `alloc`. This PR will hopefully make this easier, but even if that doesn’t happen consistency with `std` seems good.
[NLL] Better move errors
Make a number of changes to improve the quality of NLL cannot move errors.
* Group errors that occur in the same `match` with the same cause.
* Suggest `ref`, `&` or removing `*` to avoid the move.
* Show the place being matched on.
Differences from AST borrowck:
* `&` is suggested over `ref` when matching on a place that can't be moved from.
* Removing `*` is suggested instead of adding `&` when applicable.
* Sub-pattern spans aren't used, this would probably need Spans on Places.
Closes#45699Closes#46627Closes#51187Closes#51189
r? @pnkfelix
Add a fallback for stacktrace printing for older Windows versions.
Some time ago we switched stack inspection functions of dbghelp.dll to their newer alternatives that also capture inlined context.
Unfortunately, said new alternatives are not present in older dbghelp.dll versions.
In particular Windows 7 at the time of writing has dbghelp.dll version 6.1.7601 from 2010, that lacks StackWalkEx and friends.
Tested on my Windows 7 - both msvc and gnu versions produce a readable stacktrace.
Fixes#50138
park/park_timeout: prohibit spurious wakeups in next park
<pre><code>
// The implementation currently uses the trivial strategy of a Mutex+Condvar
// with wakeup flag, which does not actually allow spurious wakeups.
</pre></code>
Because does not actually allow spurious wakeups.
so we have let thread.inner.cvar.wait(m) in the loop to prohibit spurious wakeups.
but if notified after we locked, this notification doesn't be consumed, it return, the next park will consume this notification...this is also 'spurious wakeup' case, 'one unpark() wakeups two park()'.
We should improve this situation：
`thread.inner.state.store(EMPTY, SeqCst);`
Arc: remove unused allocation from Weak::new()
It seems non-obvious that calling `Weak::new()` actually allocates space for the entire size of `T`, even though you can **never** access that data from such a constructed weak pointer. Besides that, if someone were to create many `Weak:new()`s, they could be unknowingly wasting a bunch of memory.
This change makes it so that `Weak::new()` allocates no memory at all. Instead, it is created with a null pointer. The only things done with a `Weak` are trying to upgrade, cloning, and dropping, meaning there are very few places that the code actually needs to check if the pointer is null.
Explicitely disable WASM code generation for Emscripten
Emscripten changed the default behavior recently:
bd050e64bb/ChangeLog.markdown (v1381-05172018)
It now defaults to WebAssembly and requires an explicit flag to generate asm.js.
WASM=0 is also valid for older emcc and thus doesn't break it.
Use assert_eq! in copy_from_slice
This will print both lengths when the assertion fails instead of just saying that they're different.
Output of current stable and nightly (modulo the exact line number):
```
thread 'main' panicked at 'destination and source slices have different lengths', libcore/slice/mod.rs:1645:9
```
Output after this PR:
```
thread 'main' panicked at 'assertion failed: `(left == right)`
left: `123`,
right: `456`: destination and source slices have different lengths', libcore/slice/mod.rs:1645:9
```
Note that I have not run the tests locally.
