Rollup of 21 pull requests #119547
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Rollup of 21 pull requests #119547
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It was what was already being done but with worse diagnostics
(I can't build right now so this may not actually be correct)
* Fix double panic by lift the mem::forget back to where it needs to be * Remove query name from expect_job panic * Remove name field from struct because of the above * Change from `if let` to `match` for one unwrap. But with a match it cannot use the unwrap method because it will not typecheck
Future work: maybe add a new method to the query context trait to see if we are unwinding for a purpose and not an ice?
Signed-off-by: onur-ozkan <work@onurozkan.dev>
Signed-off-by: onur-ozkan <work@onurozkan.dev>
It is not important which one is used since `is_dangling` does not access memory, but `*const` removes the needs of `*const T` -> `*mut T` casts in `from_raw_in`.
The original tracking issue was superseded by a new one (constrainted naked functions) and therefore is closed.
and calculate the z-indices of things that go over the sidebar
When rust-lang#118865 started enforcing the `rustc::potential_query_instability` lint in `rustc_codegen_llvm`, it added an exemption for this site, arguing that the entries are only used to create a list of filenames that is later sorted. However, the list of entries also gets traversed when creating the function coverage records in LLVM IR, which may be sensitive to hash-based ordering. This patch therefore changes `function_coverage_map` to use `FxIndexMap`, which should avoid hash-based instability by iterating in insertion order.
No reason why this needs to be a `bug!()`.
…iddle rustdoc ui: adjust tooltip z-index to be above sidebar In rust-lang#115660 the sidebar's z-index was changed to 100. This PR changes the tooltip's z-index to 101 to be above the sidebar again. Fixes [after beta-backport] rust-lang#119472.
…, r=compiler-errors Remove two unused feature gates from rustc_query_impl
…Nilstrieb Minor improvements in comment on `freshen.rs` - Removed a stray "if" - Changed a numeric "2" to "two" because it reads better
Update books ## rust-lang/reference 1 commits in f9f5b5babd95515e7028c32d6ca4d9790f64c146..3565c7978cfc9662f5963b135690ff9cbbfa0318 2023-12-29 21:01:19 UTC to 2023-12-29 21:01:19 UTC - Use proper footnote for number literals `_` separator note (rust-lang/reference#1444) ## rust-lang/rust-by-example 1 commits in 4c2b24ff9d9cf19f2fcff799a3a49b9a2c50ae8e..c0be6299e52e4164c30ba6f41bd0ad0aaee64972 2023-12-21 15:22:11 UTC to 2023-12-21 15:22:11 UTC - point to raw indentifiers, talking about fields (rust-lang/rust-by-example#1789) ## rust-lang/rustc-dev-guide 5 commits in 0610665a8687b1b0aa037917a1598b9f2a21e3ef..d13e85152a977cd0bcaf583cf5f49e86225697de 2023-12-30 09:58:25 UTC to 2023-12-19 10:02:34 UTC - Prominently mention `profiler = true` on the coverage page (rust-lang/rustc-dev-guide#1844) - Add a description of `unpretty=hir` to the HIR docs (rust-lang/rustc-dev-guide#1842) - Fix typo in unsize docs (rust-lang/rustc-dev-guide#1843) - Suggest `gcc_multi` to make `mir_opts` run on nixos (rust-lang/rustc-dev-guide#1841) - bootstrapping: Clarify that stage0 std code is not executed to produce stage1 compiler (rust-lang/rustc-dev-guide#1840)
…ompiler-errors Deny defaults for higher-ranked generic parameters Fixes rust-lang#119489 (incl. rust-lang#119489 (comment)). Partially reverts rust-lang#119042. cc ``@bvanjoi`` r? ``@compiler-errors`` or compiler
…strieb Update deadlinks of `strict_provenance` lints Some hyperlinks on the following page redirect to 404 pages: <https://doc.rust-lang.org/rustc/lints/listing/allowed-by-default.html#explanation-5> --- ``@rustbot`` label +A-docs
…, r=fee1-dead Don't synthesize host effect params for trait associated functions marked const Fixes rust-lang#113378. r? fee1-dead or compiler
…Lapkin,Nilstrieb Report I/O errors from rmeta encoding with emit_fatal rust-lang#119456 reminded me that I never did systematic testing to provoke the out-of-disk ICEs so I grepped through a recent crater run (rust-lang#119440 (comment)) for more out-of-disk ICEs on current master and yep there's 2 in there. So I finally cooked up a way to provoke for these crashes. I wrote a little `cdylib` crate that has a `#[no_mangle] pub extern "C" fn write` which occasionally reports `ENOSPC`, and prints a backtrace when it does. <details><summary><strong>code for the dylib</strong></summary> <p> ```rust // cargo add libc rand backtrace use rand::Rng; #[no_mangle] pub extern "C" fn write( fd: libc::c_int, buf: *const libc::c_void, count: libc::size_t, ) -> libc::ssize_t { if fd > 2 && rand::thread_rng().gen::<u8>() == 0 { let mut count = 0; backtrace::trace(|frame| { backtrace::resolve_frame(frame, |symbol| { if let Some(name) = symbol.name() { if count > 3 { eprintln!("{}", name); } } count += 1; }); true }); unsafe { *libc::__errno_location() = libc::ENOSPC; } return -1; } else { unsafe { let res = libc::syscall(libc::SYS_write, fd as usize, buf as usize, count as usize) as isize; if res < 0 { *libc::__errno_location() = -res as i32; -1 } else { res } } } } ``` </p> </details> Then `LD_PRELOAD` that dylib and repeatedly build a big project until it ICEs, such as with this: ```bash while true; do cargo clean LD_PRELOAD=/home/ben/evil/target/release/libevil.so cargo +stage1 check 2> errors if grep "thread 'rustc' panicked" errors; then break fi done ``` My "big project" for testing was an otherwise-empty project with `cargo add axum`. Before this PR, the above procedure finds a crash in between 1 and 15 minutes. With this PR, I have not found a crash in 30 minutes, and I'll be leaving this to run overnight (starting now). (A night has now passed, no crashes were found) I believe the problem is that even though since rust-lang#117301 we correctly check `FileEncoder` for errors on all paths, we use `emit_err`, so there is a window of time between the call to `emit_err` and the full error reporting where rustc believes it has emitted a valid rmeta file and will permit Cargo to launch a build for a dependent crate. Changing these calls to `emit_fatal` closes that window. I think there are a number of other cases where `emit_err` has been used instead of the more-correct `emit_fatal` such as https://github.com/rust-lang/rust/blob/e51e98dde6a60637b6a71b8105245b629ac3fe77/compiler/rustc_codegen_ssa/src/back/write.rs#L542 but unlike rmeta encoding I am not aware of those cases of those causing problems. r? `@WaffleLapkin`
Mark myself as back from leave
…wiser coverage: Avoid a query stability hazard in `function_coverage_map` When rust-lang#118865 started enforcing the `rustc::potential_query_instability` lint in `rustc_codegen_llvm`, it added an exemption for this site, arguing that the entries are only used to create a list of filenames that is later sorted. However, the list of entries also gets traversed when creating the function coverage records in LLVM IR, which may be sensitive to hash-based ordering. This patch therefore changes `function_coverage_map` to use `FxIndexMap`, which should avoid hash-based instability by iterating in insertion order. cc `@Enselic`
llvm: Allow `noundef` in codegen tests LLVM 18 will automatically infer `noundef` in some situations. Adjust codegen tests to accept this. See llvm/llvm-project#76553 for why `noundef` is being generated now. `@rustbot` label:+llvm-main
…tes, r=JohnTitor Update `thread_local` examples to use `local_key_cell_methods` `local_key_cell_methods` has been stable for a while and provides a much less clunky way to interface with thread-local Additionaly add context to the documentation about why types with interior mutability are needed. r? libs
…rieb Fix: Properly set vendor in i686-win7-windows-msvc target In rust-lang#118150 , setting the `vendor` field of the `i686-win7-windows-msvc` target was forgotten, preventing us from easily checking the target using `cfg(target_vendor)`. With this PR, we set the target vendor to "win7".
rustbot
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A-meta
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Sorry but im gonna kick this so that one PR can be squashed |
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@bors r- |
bors
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S-waiting-on-author
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Successful merges:
TyCtxt::is_closuretoTyCtxt::is_closure_or_coroutine#119444 (RenameTyCtxt::is_closuretoTyCtxt::is_closure_or_coroutine)freshen.rs#119487 (Minor improvements in comment onfreshen.rs)strict_provenancelints #119498 (Update deadlinks ofstrict_provenancelints)function_coverage_map#119514 (coverage: Avoid a query stability hazard infunction_coverage_map)noundefin codegen tests #119523 (llvm: Allownoundefin codegen tests)thread_localexamples to uselocal_key_cell_methods#119534 (Updatethread_localexamples to uselocal_key_cell_methods)r? @ghost
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