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Support running library tests in Miri
This adds a new bootstrap subcommand `./x.py miri` which can test libraries in Miri. This is in preparation for eventually doing that as part of bors CI, but this PR only adds the infrastructure, and doesn't enable it yet.
`@rust-lang/bootstrap` should this be `x.py test --miri library/core` or `x.py miri library/core`? The flag has the advantage that we don't have to copy all the arguments from `Subcommand::Test`. It has the disadvantage that most test steps just ignore `--miri` and still run tests the regular way. For clippy you went the route of making it a separate subcommand. ~~I went with a flag now as that seemed easier, but I can change this.~~ I made it a new subcommand. Note however that the regular cargo invocation would be `cargo miri test ...`, so `x.py` is still going to be different in that the `test` is omitted. That said, we could also make it `./x.py miri-test` to make that difference smaller -- that's in fact more consistent with the internal name of the command when bootstrap invokes cargo.
`@rust-lang/libs` ~~unfortunately this PR does some unholy things to the `lib.rs` files of our library crates.~~
`@m-ou-se` found a way that entirely avoids library-level hacks, except for some new small `lib.miri.rs` files that hopefully you will never have to touch. There's a new hack in cargo-miri but there it is in good company...
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Fixes https://github.com/rust-lang/rust/issues/120553
Fixes https://github.com/rust-lang/rust/issues/48462
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r=oli-obk,wesleywiser
Move generic `NonZero` `rustc_layout_scalar_valid_range_start` attribute to inner type.
Tracking issue: https://github.com/rust-lang/rust/issues/120257
r? `@dtolnay`
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This commit removes the `wasm32-shim.js` file, for example, and deletes
old support for Emscripten which hasn't been exercised in some time.
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Rename `pointer` field on `Pin`
A few days ago, I was helping another user create a self-referential type using `PhantomPinned`. However, I noticed an odd behavior when I tried to access one of the type's fields via `Pin`'s `Deref` impl:
```rust
use std::{marker::PhantomPinned, ptr};
struct Pinned {
data: i32,
pointer: *const i32,
_pin: PhantomPinned,
}
fn main() {
let mut b = Box::pin(Pinned {
data: 42,
pointer: ptr::null(),
_pin: PhantomPinned,
});
{
let pinned = unsafe { b.as_mut().get_unchecked_mut() };
pinned.pointer = &pinned.data;
}
println!("{}", unsafe { *b.pointer });
}
```
```rust
error[E0658]: use of unstable library feature 'unsafe_pin_internals'
--> <source>:19:30
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19 | println!("{}", unsafe { *b.pointer });
| ^^^^^^^^^
error[E0277]: `Pinned` doesn't implement `std::fmt::Display`
--> <source>:19:20
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19 | println!("{}", unsafe { *b.pointer });
| ^^^^^^^^^^^^^^^^^^^^^ `Pinned` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `Pinned`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
```
Since the user named their field `pointer`, it conflicts with the `pointer` field on `Pin`, which is public but unstable since Rust 1.60.0 with #93176. On versions from 1.33.0 to 1.59.0, where the field on `Pin` is private, this program compiles and prints `42` as expected.
To avoid this confusing behavior, this PR renames `pointer` to `__pointer`, so that it's less likely to conflict with a `pointer` field on the underlying type, as accessed through the `Deref` impl. This is technically a breaking change for anyone who names their field `__pointer` on the inner type; if this is undesirable, it could be renamed to something more longwinded. It's also a nightly breaking change for any external users of `unsafe_pin_internals`.
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The internal, unstable field of `Pin` can conflict with fields from the
inner type accessed via the `Deref` impl. Rename it from `pointer` to
`__pointer`, to make it less likely to conflict with anything else.
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bump bootstrap dependencies
This PR removes hard-coded patch versions, updates bootstrap's dependency stack to recent versions (some of the versions were released 3-4 years ago), and removes a few dependencies from bootstrap.
Removed dependencies:
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Signed-off-by: onur-ozkan <work@onurozkan.dev>
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Signed-off-by: onur-ozkan <work@onurozkan.dev>
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add more niches to rawvec
Previously RawVec only had a single niche in its `NonNull` pointer. With this change it now has `isize::MAX` niches since half the value-space of the capacity field is never needed, we can't have a capacity larger than isize::MAX.
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Signed-off-by: onur-ozkan <work@onurozkan.dev>
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As bootstrap locks its entire build directory, parallel bootstrapping
for anything becomes impossible. This change enables developers to bypass
the locking mechanism when it is unnecessary for their specific use case.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
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Run tidy license checker on more workspaces
The license checker didn't run on several workspaces before this PR. The same applied to the "external package sources" check. There were also two missing lockfiles which I have added now.
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add bootstrap flag `--skip-stage0-validation`
This change introduces the `--skip-stage0-validation` flag, which permits the use of any desired version of the stage0 compiler without verifying its version.
Additionally, stage0 compiler validation check is reverted(#115103) to its default enabled state.
Helps to #115065
r? Mark-Simulacrum
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Rewrite gdb pretty-printer registration
Currently, the Rust pretty-printers are registered in gdb using the uninformative name "lookup":
(gdb) info pretty-printer
global pretty-printers:
[...]
objfile /home/tromey/[...]
lookup
It's nicer for users if the top-level registration is given a clear name. Additionally, gdb lets users individually enable and disable specific printers, provided they are registered correctly.
This patch implements both these ideas. Now the output looks like:
(gdb) info pretty-printer
global pretty-printers:
[...]
objfile /home/tromey/[...]
rust
StdArc
StdBTreeMap
StdBTreeSet
StdCell
StdHashMap
StdHashSet
StdNonZeroNumber
StdOsString
StdRc
StdRef
StdRefCell
StdRefMut
StdSlice
StdStr
StdString
StdVec
StdVecDeque
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This change introduces the --skip-stage0-validation flag,
which permits the use of any desired version of the stage0
compiler without verifying its version.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
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GDB 14 has a "gdb.ValuePrinter" tag class that was introduced to let
GDB evolve the pretty-printer API. Users of this tag are required to
hide any local attributes or methods. This patch makes this change to
the Rust pretty-printers. At present this is just a cleanup,
providing the basis for any future changes.
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Currently, the Rust pretty-printers are registered in gdb using the
uninformative name "lookup":
(gdb) info pretty-printer
global pretty-printers:
[...]
objfile /home/tromey/[...]
lookup
It's nicer for users if the top-level registration is given a clear
name. Additionally, gdb lets users individually enable and disable
specific printers, provided they are registered correctly.
This patch implements both these ideas. Now the output looks like:
(gdb) info pretty-printer
global pretty-printers:
[...]
objfile /home/tromey/[...]
rust
StdArc
StdBTreeMap
StdBTreeSet
StdCell
StdHashMap
StdHashSet
StdNonZeroNumber
StdOsString
StdRc
StdRef
StdRefCell
StdRefMut
StdSlice
StdStr
StdString
StdVec
StdVecDeque
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Signed-off-by: onur-ozkan <work@onurozkan.dev>
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Signed-off-by: onur-ozkan <work@onurozkan.dev>
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This removes a dependency on fuchsia-cprng which doesn't have any
license info.
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Raise minimum supported Apple OS versions
This implements the proposal to raise the minimum supported Apple OS versions as laid out in the now-completed MCP (https://github.com/rust-lang/compiler-team/issues/556).
As of this PR, rustc and the stdlib now support these versions as the baseline:
- macOS: 10.12 Sierra
- iOS: 10
- tvOS: 10
- watchOS: 5 (Unchanged)
In addition to everything this breaks indirectly, these changes also erase the `armv7-apple-ios` target (currently tier 3) because the oldest supported iOS device now uses ARMv7s. Not sure what the policy around tier3 target removal is but shimming it is not an option due to the linker refusing.
[Per comment](https://github.com/rust-lang/compiler-team/issues/556#issuecomment-1297175073), this requires a FCP to merge. cc `@wesleywiser.`
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in commit 8dd0ec6, the `GDB_ARGS` variable was split across 3 lines. However, extra quotes were added to each line, such that the shell interprets the 3 lines as space separated strings, and tries to execute the latter two lines.
This commit simply removes the extra quotes.
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Add support for tidy linting via external tools for non-rust files
This change adds the flag `--check-extras` to `tidy`. It accepts a comma separated list of any of the options:
* py (test everything applicable for python files)
* py:lint (lint python files using `ruff`)
* py:fmt (check formatting for python files using `black`)
* shell or shell:lint (lint shell files using `shellcheck`)
Specific files to check can also be specified via positional args. Examples:
* `./x test tidy --check-extras=shell,py`
* `./x test tidy --check-extras=py:fmt -- src/bootstrap/bootstrap.py`
* `./x test tidy --check-extras=shell -- src/ci/*.sh`
* Python formatting can be applied with bless: `./x test tidy --ckeck-extras=py:fmt --bless`
`ruff` and `black` need to be installed via pip; this tool manages these within a virtual environment at `build/venv`. `shellcheck` needs to be installed on the system already.
---
This PR doesn't fix any of the errors that show up (I will likely go through those at some point) and it doesn't enforce anything new in CI. Relevant zulip discussion: https://rust-lang.zulipchat.com/#narrow/stream/242791-t-infra/topic/Other.20linters.20in.20CI
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This change adds the flag `--check-extras` to `tidy`. It accepts a comma
separated list of any of the options:
- py (test everything applicable for python files)
- py:lint (lint python files using `ruff`)
- py:fmt (check formatting for python files using `black`)
- shell or shell:lint (lint shell files using `shellcheck`)
Specific files to check can also be specified via positional args.
Examples:
- `./x test tidy --check-extras=shell,py`
- `./x test tidy --check-extras=py:fmt -- src/bootstrap/bootstrap.py`
- `./x test tidy --check-extras=shell -- src/ci/*.sh`
- Python formatting can be applied with bless:
`./x test tidy --ckeck-extras=py:fmt --bless`
`ruff` and `black` need to be installed via pip; this tool manages these
within a virtual environment at `build/venv`. `shellcheck` needs to be
installed on the system already.
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etc: add `RUSTC_BOOTSTRAP` to rust-analyzer config
Fixes the problem reported in https://github.com/rust-lang/rust/issues/112391#issuecomment-1597224941
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Signed-off-by: ozkanonur <work@onurozkan.dev>
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Fixes the problem reported in
https://github.com/rust-lang/rust/issues/112391#issuecomment-1597224941
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Add support for allocators in `Rc` & `Arc`
Adds the ability for `std::rc:Rc`, `std::rc::Weak`, `std::sync::Arc`, and `std::sync::Weak` to live in custom allocators
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Also update a test case to have the correct whitespace in a type name.
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Update runtests.py : grammar correction
- Grammatically corrected the sentence
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