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
Add stderr_locked, stdin_locked, and stdout_locked free functions
to obtain owned locked stdio handles in a single step. Also add
into_lock methods to consume a stdio handle and return an owned
lock. These methods will make it easier to use locked stdio
handles without having to deal with lifetime problems or keeping
bindings to the unlocked handles around.
Include terminators in instance size estimate
For example, drop glue generated for struct below, doesn't have any
statements, only terminators. Previously it received an estimate of 0,
the new estimate is 13 (6+5 drop terminators, +1 resume, +1 return).
```rust
struct S {
a: String,
b: String,
c: String,
d: String,
e: String,
f: String,
}
```
Originally reported in https://github.com/rust-lang/rust/issues/69382#issue-569392141
The recursion_limit attribute avoids the following error:
```
error[E0275]: overflow evaluating the requirement `std::ptr::Unique<rustc_ast::Pat>: std::marker::Send`
|
= help: consider adding a `#![recursion_limit="256"]` attribute to your crate (`rustfmt_nightly`)
```
Allow anyone to add or remove any label starting with perf-
In order to fully realize planned changes to the performance tracking process, we'd like to allow anyone to change the perf related labels.
r? ``@Mark-Simulacrum``
Test for const trait impls behind feature gates
- Make the previous cross-crate tests use revisions instead of being separate files
- Added test for gating const trait impls.
cc ``@oli-obk`` ``@jonas-schievink``
fix(rustdoc): generics search
This commit adds a test case for generics, re-adds generics data
to the search index, and tweaks function indexing to use less space in JSON.
This partially reverts commit 14ca89446c.
Check the number of generic lifetime and const parameters of intrinsics
This pull request fixes#85855. The current code for type checking intrinsics only checks the number of generic _type_ parameters, but does not check for an incorrect number of lifetime or const parameters, which can cause problems later on, such as the ICE in #85855, where the code thought that it was looking at a type parameter but found a lifetime parameter:
```
error: internal compiler error: compiler/rustc_middle/src/ty/generics.rs:188:18:
expected type parameter, but found another generic parameter
```
The changes in this PR add checks for the number of lifetime and const parameters, expand the scope of `E0094` to also apply to these cases, and improve the error message by properly pluralizing the number of expected generic parameters.
Also an fix issue with tuple type names where we can't cast to them in
natvis (required by the visualizer for `HashMap`) because of
peculiarities with the natvis expression evaluator.
Don't suggest doc(hidden) or unstable variants in wildcard lint
Clippy's wildcard lint would suggest doc(hidden) and unstable variants for non_exhaustive enums, even though those aren't part of the public interface (yet) and should only be matched on using a `_`, just like potential future additions to the enum. There was already some logic to exclude a *single* doc(hidden) variant. This extends that to all hidden variants, and also hides `#[unstable]` variants.
See https://github.com/rust-lang/rust/pull/85746#issuecomment-868886893
This PR includes https://github.com/rust-lang/rust-clippy/pull/7406 as the first commit.
Here's the diff that this PR adds on top of that PR: https://github.com/m-ou-se/rust-clippy/compare/std-errorkind...m-ou-se:doc-hidden-variants
---
*Please write a short comment explaining your change (or "none" for internal only changes)*
changelog: No longer suggest unstable and doc(hidden) variants in wildcard lint. wildcard_enum_match_arm, match_wildcard_for_single_variants
This commit adds a test case for generics, re-adds generics data
to the search index, and tweaks function indexing to use less space in JSON.
This reverts commit 14ca89446c.
Update cargo
9 commits in 9233aa06c801801cff75df65df718d70905a235e..4952979031e2cf1d901c817a32e25a156a19db4c
2021-06-22 21:32:55 +0000 to 2021-07-01 01:14:50 +0000
- Fix `BorrowMutError` when calling `cargo doc --open` (rust-lang/cargo#9531)
- Exclude `target` from content-indexing on Windows (rust-lang/cargo#9635)
- Temporarily ignore 2021 edition fix. (rust-lang/cargo#9642)
- Temporarily disable future_incompat tests. (rust-lang/cargo#9638)
- Include toolchain specification in error message (rust-lang/cargo#9625)
- Error when packaging with git dependencies without version (rust-lang/cargo#9612)
- simply 'if' block (rust-lang/cargo#9615)
- tidy some closures and iterators (rust-lang/cargo#9614)
- use 'writeln' instead of appending newline character (rust-lang/cargo#9620)
For example, drop glue generated for struct below, doesn't have any
statements, only terminators. Previously it received an estimate of 0,
the new estimate is 13 (6+5 drop terminators, +1 resume, +1 return).
struct S {
a: String,
b: String,
c: String,
d: String,
e: String,
f: String,
}
Originally reported in https://github.com/rust-lang/rust/issues/69382#issue-569392141
Converting a byte position into a char position is currently linear in
the number of multibyte characters in the source code. Avoid it when
checking if a range spans across lines.
This makes it feasible to compile source files with a large number of
multibyte characters.
This fixes a bug where match_wildcard_for_single_variants produced a
bad suggestion where besides the missing variant, one or more hidden
variants were left.
This also adds tests to the ui-tests match_wildcard_for_single_variants
and wildcard_enum_match_arm to make sure that the correct suggestion is
produced.
Enable the tests developed with #86594
This PR requires `browser-ui-test@0.4.1`. Can we centralise the version number somehow and maybe automatically install it when tests are run?
r? `@GuillaumeGomez`
Fix misleading "impl Trait" error
The kinds can't be compared directly, as types with references are treated as different because the lifetimes aren't bound in ty, but are in expected.
Closes#84160
Add support for leaf function frame pointer elimination
This PR adds ability for the target specifications to specify frame
pointer emission type that's not just “always” or “whatever cg decides”.
In particular there's a new mode that allows omission of the frame
pointer for leaf functions (those that don't call any other functions).
We then set this new mode for Aarch64-based Apple targets.
Fixes#86196
rustc_span: Explicitly handle crates that differ from package names
The sha-1 and md-5 packages contain crates named sha1 and md5,
respectively. This discrepancy makes it somewhat more challenging to
automate detection of unused crates. Explicitly rename the packages to
the names of the crates they contain, to simplify such detection.
Add suggestions for "undefined reference" link errors
This adds a suggestion for "undefined reference to ..." linking errors to install or specify the location to an external library. Since there is no defined error format for linkers, we just check if there was a failure and if that failure contains the string `undefined reference to`. This also makes it impossible to test this, since the output depends on the system linker. The output now looks like:
```
error: linking with `cc` failed: exit status: 1
|
= note: "cc" "-m64" "linking_failure.linking_failure.7rcbfp3g-cgu.0.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.1.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.2.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.3.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.4.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.5.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.6.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.7.rcgu.o" "linking_failure.linking_failure.7rcbfp3g-cgu.8.rcgu.o" "linking_failure.53u64zklswtfazes.rcgu.o" "-Wl,--as-needed" "-L" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,--start-group" "-Wl,-Bstatic" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-01ce3ba5c629d02f.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-f1f2102409186354.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-1e8b6b56a999f838.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d0e93eb4e14f1d19.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-1d7e39d75d082b43.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-ade42e945045b261.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-1a65064fccf4ebc1.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-4d699c310fdfe72d.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1cafa68a696ec800.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-e9f1c8c4dab2f046.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-ecc1a743be25c7f7.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e074031c4b66b6b6.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-9aa6ed9f1d3bfd53.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-7862bf96c2250ca0.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-f02ce0dc7895b5fd.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-3af9c60917570521.rlib" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-ca16fc7bb3645684.rlib" "-Wl,--end-group" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d8e1a5b7299604cc.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/home/smit/rustc-dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "linking_failure" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
= note: /usr/bin/ld: linking_failure.linking_failure.7rcbfp3g-cgu.3.rcgu.o: in function `linking_failure::main':
linking_failure.7rcbfp3g-cgu.3:(.text._ZN15linking_failure4main17h52b6e3052e444479E+0x3): undefined reference to `doesnt_exist_thiwthwfyl'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
= help: some `extern` functions couldn't be found; you may need to install or specify the path to some dependencies
= note: use the -L flag to specify the library lookup path
= note: use the cargo:rustc-link-search directive to specify the library lookup path with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-search)
error: aborting due to previous error
```
