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Implement printing of stack traces on LLVM segfaults and aborts
Implement #79153
Based on discussion, try to extend the rust_backtrace=1 feature to handle segfault or aborts in the llvm backend
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Rollup of 8 pull requests
Successful merges:
- #85504 (the foundation owns rust trademarks)
- #85520 (Fix typo and improve documentation for E0632)
- #86680 (Improve error for missing -Z with debugging option)
- #86728 (Check node kind to avoid ICE in `check_expr_return()`)
- #86740 (copy rust-lld as ld in dist)
- #86746 (Fix rustdoc query type filter)
- #86750 (Test cross-crate usage of `feature(const_trait_impl)`)
- #86755 (alloc: `RawVec<T, A>::shrink` can be in `no_global_oom_handling`.)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Allow changing the bug report url for the ice hook
cc https://github.com/bjorn3/rustc_codegen_cranelift/issues/1174
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rustc_driver cleanup
Best reviewed one commit at a time.
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Add listing of lints (eg via `-W help`) to rustdoc
Fixes #83883
r? `@jyn514`
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Find codegen backends in more locations
* Search in the sysroot passed using `--sysroot` in addition to the default sysroot.
* Search for `librustc_codegen_$name.so` in addition to `librustc_codegen_$name-$release.so`.
This combined would allow putting `librustc_codegen_cranelift.so` in the right location of a sysroot passed using `--sysroot`.
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- Add back `HirIdVec`, with a comment that it will soon be used.
- Add back `*_region` functions, with a comment they may soon be used.
- Remove `-Z borrowck_stats` completely. It didn't do anything.
- Remove `make_nop` completely.
- Add back `current_loc`, which is used by an out-of-tree tool.
- Fix style nits
- Remove `AtomicCell` with `cfg(parallel_compiler)` for consistency.
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Found with https://github.com/est31/warnalyzer.
Dubious changes:
- Is anyone else using rustc_apfloat? I feel weird completely deleting
x87 support.
- Maybe some of the dead code in rustc_data_structures, in case someone
wants to use it in the future?
- Don't change rustc_serialize
I plan to scrap most of the json module in the near future (see
https://github.com/rust-lang/compiler-team/issues/418) and fixing the
tests needed more work than I expected.
TODO: check if any of the comments on the deleted code should be kept.
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Rollup of 7 pull requests
Successful merges:
- #80595 (`impl PartialEq<Punct> for char`; symmetry for #78636)
- #81991 (Fix panic in 'remove semicolon' when types are not local)
- #82176 (fix MIR fn-ptr pretty-printing)
- #82244 (Keep consistency in example for Stdin StdinLock)
- #82260 (rustc: Show ``@path`` usage in stable)
- #82316 (Fix minor mistake in LTO docs.)
- #82332 (Don't generate src link on dummy spans)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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rustc: Show `@path` usage in stable
The feature was stabilized in #66172, but the usage string was not updated to be shown.
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rustdoc: Support argument files
Factors out the `rustc_driver` logic that handles argument files so that rustdoc supports them as well, e.g.:
rustdoc `@argfile`
This is needed to be able to generate docs for projects that already use argument files when compiling them, e.g. projects that pass a huge number of `--cfg` arguments.
The feature was stabilized for `rustc` in #66172.
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Factors out the `rustc_driver` logic that handles argument files
so that rustdoc supports them as well, e.g.:
rustdoc @argfile
This is needed to be able to generate docs for projects that
already use argument files when compiling them, e.g. projects
that pass a huge number of `--cfg` arguments.
The feature was stabilized for `rustc` in #66172.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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The feature was stabilized in #66172, but the usage string was not
updated to be shown.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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* Search in the sysroot passed using `--sysroot` in addition to the
default sysroot.
* Search for `librustc_codegen_$name.so` in addition to
`librustc_codegen_$name-$release.so`.
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Previously, only the end of pass RSS was indicated. This could easily
lead one to believe that the change in RSS from one pass to the next was
attributable to the second pass, when in fact it occurred between the
end of the first pass and the start of the second.
Also, improve alignment of columns.
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Use Option::map_or instead of `.map(..).unwrap_or(..)`
``@rustbot`` modify labels +C-cleanup +T-compiler
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Fix -Cpasses=list and llvm version print with -vV
cc https://github.com/rust-lang/rust/pull/77975#issuecomment-759362933
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Rationale:
- `atty` is widely used in the Rust ecosystem
- We already use it (in `rustc_errors` and other places)
- We shouldn't be rolling our own TTY detector when there's a
widely-used, well-tested package that we can use
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Logging goes to stderr, not stdout, so we should base our automated
detection on stderr instead of stdout.
Thanks to Ralf Jung for noticing and reporting the bug!
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... by removing a duplicate `crate_name` field in `interface::Config`,
making it clear that rustdoc should be passing it to `config::Options`
instead.
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Always print lints from plugins, if they're available
Currently you can get a list of lints and lint groups by running `rustc
-Whelp`. This prints an additional line at the end:
```
Compiler plugins can provide additional lints and lint groups. To see a listing of these, re-run `rustc -W help` with a crate filename.
```
Clippy is such a "compiler plugin", that provides additional lints.
Running `clippy-driver -Whelp` (`rustc` wrapper) still only prints the
rustc lints with the above message at the end. But when running
`clippy-driver -Whelp main.rs`, where `main.rs` is any rust file, it
also prints Clippy lints. I don't think this is a good approach from a
UX perspective: Why is a random file necessary to print a help message?
This PR changes this behavior: Whenever a compiler callback
registers lints, it is assumed that these lints come from a plugin and
are printed without having to specify a Rust source file.
Fixes rust-lang/rust-clippy#6122
cc `@Manishearth` `@ebroto` for the Clippy changes.
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