Auto merge of #101442 - joboet:null_check_tcs, r=thomcc
Check if TCS is a null pointer on SGX
The `EENTER` instruction only checks if the TCS is aligned, not if it zero. Saying the address returned is a `NonNull<u8>` (for which `Tcs` is a type alias) is unsound. As well-behaved runners will not put the TCS at address zero, so the definition of `Tcs` is correct. However, `std` should check the address before casting it to a `NonNull`.
I don't know what the right approach is here. There were a few suggestions in the issue, and they all seem a bit thorny to implement. So I just picked one that was kind of familiar.
Auto merge of #101678 - jannic:fix-101640, r=jyn514
Add diagnostic arg 'current_crate'
With this fix, I get almost the same error message as on stable, again.
However, I expected to get the new error message `std is required by {$current_crate} because it does not declare #![no_std]`, but I didn't. Instead, I got a new line `help: consider building the standard library from source with cargo build -Zbuild-std`. So I obviously do not fully understand what is going on.
In any case, the bug itself seems to be fixed by this patch.
Auto merge of #101682 - compiler-errors:rpitit-encode, r=fee1-dead
Only encode return-position `impl Trait` in trait when parent function has a default body
Semi-blocked on #101679, because I can't currently write a test for when we _should_ encode the type of the return-position `impl Trait` in trait, which is when a trait has a default function body, like so:
Though this can land even without #101679, since it does prevent ICEs from occuring any time you use `#![feature(return_position_impl_trait_in_trait)]` in a library, which is kind annoying.
Auto merge of #13214 - SpencerSharkey:ubuntu-container-build, r=lnicola
Build release artifact against older Glibc
When GitHub [deprecated Ubuntu 18.04](https://github.blog/changelog/2022-08-09-github-actions-the-ubuntu-18-04-actions-runner-image-is-being-deprecated-and-will-be-removed-by-12-1-22/) runners, rust-analyzer was forced to bump runners to 20.04 which includes an updated Glib. This renders RA incompatible with the still popular Ubuntu 18.04 and other slightly older distro versions.
Until a deprecation plan is announced on RA's side, I propose binaries shall be built against older glibc to maintain compatibility.
This PR changes the Release CI workflow to build the `linux-x64/x86_64-unknown-linux-gnu` release in an Ubuntu 18.04 container.
Auto merge of #101673 - crlf0710:generator_clone, r=oli-obk
Allow generators to impl Clone/Copy
Revives #95137. It's a pity that the original pr didn't land because the implementation is almost complete! All credits goes to `@canndrew,` and i just resolved the merge conflicts and updated the feature gate version number.
Auto merge of #101670 - obi1kenobi:patch-1, r=jyn514
Add @obi1kenobi to the cc list for rustdoc-json-types
I'm one of the maintainers of `cargo-semver-checks`, and as mentioned [in Zulip](https://rust-lang.zulipchat.com/#narrow/stream/266220-rustdoc/topic/Long.20Term.20Rustdoc.20JSON.20Stability) it's very useful to me to know about upcoming rustdoc JSON types changes so I can be ready to publish new `cargo-semver-checks` releases compatible with the new JSON format.
Auto merge of #101482 - joboet:netbsd_parker, r=sanxiyn
Optimize thread parking on NetBSD
As the futex syscall is not present in the latest stable release, NetBSD cannot use the efficient thread parker and locks Linux uses. Currently, it therefore relies on a pthread-based parker, consisting of a mutex and semaphore which protect a state variable. NetBSD however has more efficient syscalls available: [`_lwp_park`](https://man.netbsd.org/_lwp_park.2) and [`_lwp_unpark`](https://man.netbsd.org/_lwp_unpark.2). These already provide the exact semantics of `thread::park` and `Thread::unpark`, but work with thread ids. In `std`, this ID is here stored in an atomic state variable, which is also used to optimize cases were the parking token is already available at the time `thread::park` is called.
Currently the documentation of f64::min refers to "IEEE-754 2008" while the documentation of
f64::minimum refers to "IEEE 754-2019".
Note that one has the format IEEE,hyphen,number,space,year while the other is
IEEE,space,number,hyphen,year. The official IEEE site [1] uses the later format and it is also the
one most commonly used throughout the codebase.
Update all comments and - more importantly - documentation to consistently use the official format.
Auto merge of #101613 - GuillaumeGomez:codeblock-tooltip, r=notriddle
Simplify codeblock and their associated tooltip
It is based on https://github.com/rust-lang/rust/pull/101600 so it needs to wait for this one to be merged first.
This PR does two things:
* Remove CSS class duplication by setting CSS classes such as `compile_fail` directly on the `div` wrapping both the codeblock and the tooltip.
* Simplify DOM: no need to wrap the tooltip into a `<div>`, it can work just as well without it.
You can test it [here](https://rustdoc.crud.net/imperio/codeblock-tooltip/std/string/struct.String.html#deref).
Auto merge of #101652 - Dylan-DPC:rollup-f4atky0, r=Dylan-DPC
Rollup of 6 pull requests
Successful merges:
- #101578 (remove bound var hack in `resolve`)
- #101606 (doc: fix minor typo)
- #101614 (Equate fn outputs when inferring RPITIT hidden types)
- #101631 (rustdoc: avoid cleaning modules with duplicate names)
- #101635 (Move `Queries::new` out of the macro)
- #101641 (Update browser-ui-test version to 0.9.8)
If we just subtype the signatures `fn() -> &'static str <: fn() -> _#1t` (where `_#1t` is the variable we've used to infer `impl Sized`), we'll end up `&'static str <: _#1t`, which causes us to infer `_#1t = #'_#2r str`, where `'_#2r` is unconstrained, which gets fixed up to `ReEmpty`, and which is certainly not what we want.
I can't actually think of a way to make this fail to compile, because during borrowck we've already done the method probe, and so we just look at the `impl` method signature and see the `&'static str` any time we call `<() as Foo>::bar()`. But this _does_ cause the ICE [here](https://github.com/rust-lang/rust/pull/98559#issuecomment-1241891994) in `@jackh726's` "Remove ReEmpty" PR (#98559) to stop ICEing, because after that PR we were leaking unconstrained region variables into the typeck results.
To keep the layout looking the same, the links need to not have `width: 100%` any more, relying instead on the box naturally growing to fit because it has `display: block`.
Similar to rust-lang/rust#100445, this adapts the new test added by rust-lang/rust#99207 to some relatively recent [LLVM changes](https://github.com/llvm/llvm-project/commit/057cabd997aeaef136e1e14f2ee645bd5bb197dd) that removed the function name from msan messages.
Found via our experimental rust + llvm @ HEAD bot:
https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/13347#018321b2-0cc3-4c91-b4db-774477e8b074
Rollup merge of #101595 - ehuss:fix-ice-flag-report, r=tmiasko
Fix ICE report flags display.
#92310 made some changes to the ICE report that displays the rustc flags, but it introduced a bug where a flag like `-Z incremental-verify-ich=yes` was being treated as-if it was `-Cincremental`. This corrupted the output and made it confusing. The cause was using `starts_with` instead of properly splitting the option.
For example, with the command like `rustc foo.rs -Cincremental=/tmp/a -Zincremental-verify-ich=yes --crate-type lib` would previously look like:
Rollup merge of #101413 - nicholasbishop:bishop-remove-uefi-static-reloc, r=petrochenkov
Use RelocModel::Pic for UEFI targets
In https://github.com/rust-lang/rust/pull/100537, the relocation model for UEFI targets was changed from PIC (the default value) to
static. There was some dicussion of this change here: https://github.com/rust-lang/rust/pull/100537#discussion_r952363012
It turns out that this can cause compilation to fail as described in https://github.com/rust-lang/rust/issues/101377, so switch back to PIC.
Auto merge of #99916 - dpaoliello:stablizerawdylib, r=wesleywiser
Stabilize raw-dylib for non-x86
This stabilizes the `raw-dylib` and `link_ordinal` features (#58713) for non-x86 architectures (i.e., `x86_64`, `aarch64` and `thumbv7a`):
* Marked the `raw_dylib` feature as `active`.
* Marked the `link_ordinal` attribute as `ungated`.
* Added new errors if either feature is used on x86 targets without the `raw_dylib` feature being enabled.
* Updated tests to only set the `raw_dylib` feature when building for x86.
Joshua Nelson [Mon, 5 Sep 2022 11:43:11 +0000 (06:43 -0500)]
Move `TRY_LOAD_FROM_DISK` out of `rustc_queries` to `rustc_query_impl`
We want to refer to `crate::plumbing::try_load_from_disk` in the const, but hard-coding it in
rustc_queries, where we don't yet know the crate this macro will be called in, seems kind of hacky.
Do it in query_impl instead.
Joshua Nelson [Fri, 2 Sep 2022 02:49:57 +0000 (21:49 -0500)]
Don't use a custom disk loader for diagnostic_only_typeck
This uses exactly the same types for query results as `typeck`, which doesn't have custom code.
It's not clear to me why this code exists (it goes back even before queries used a proc macro),
but it compiles fine without the custom loader. Remove it for simplicity.
Joshua Nelson [Fri, 2 Sep 2022 02:17:35 +0000 (21:17 -0500)]
Make the `storage` query modifier less general
In practice, it was only ever used with `ArenaCacheSelector`. Change it to a single boolean
`arena_cache` rather than allowing queries to specify an arbitrary type.
Auto merge of #101617 - Dylan-DPC:rollup-iiy4ipc, r=Dylan-DPC
Rollup of 5 pull requests
Successful merges:
- #101366 (Restore old behaviour on broken UNC paths)
- #101492 (Suggest adding array lengths to references to arrays if possible)
- #101529 (Fix the example code and doctest for Formatter::sign_plus)
- #101573 (update `ParamKindOrd`)
- #101612 (Fix code generation of `Rvalue::Repeat` with 128 bit values)
Auto merge of #101611 - GuillaumeGomez:rollup-yw3qtug, r=GuillaumeGomez
Rollup of 5 pull requests
Successful merges:
- #101475 (Use futex-based locks and thread parker on Hermit)
- #101492 (Suggest adding array lengths to references to arrays if possible)
- #101495 (Compile spin_loop_hint as pause on x86 even without sse2 enabled)
- #101529 (Fix the example code and doctest for Formatter::sign_plus)
- #101600 (rustdoc: simplify the codeblock tooltip)
Nicholas Bishop [Sun, 4 Sep 2022 16:42:03 +0000 (12:42 -0400)]
Use RelocModel::Pic for UEFI targets
In https://github.com/rust-lang/rust/pull/100537, the relocation model
for UEFI targets was changed from PIC (the default value) to
static. There was some dicussion of this change here:
https://github.com/rust-lang/rust/pull/100537#discussion_r952363012
It turns out that this can cause compilation to fail as described in
https://github.com/rust-lang/rust/issues/101377, so switch back to PIC.
To keep the layout looking the same, the links need to not have
`width: 100%` any more, relying instead on the box naturally growing to
fit because it has `display: block`.
Rollup merge of #101529 - mousetail:patch-2, r=thomcc
Fix the example code and doctest for Formatter::sign_plus
The provided example to the `sign_plus` method on `fmt` was broken, it displays the `-` sign twice for negative numbers.
This pull request should fix the issue by `.abs()` ing the number so that the negative sign appears only once. It is just one possible solution to the issue, not sure if it's the best. However, this one will behave as expected when combined with fill and alignment operators.
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