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2020-04-02Auto merge of #70362 - TimDiekmann:alloc-overhaul, r=Amanieubors-42/+74
Overhaul of the `AllocRef` trait to match allocator-wg's latest consens; Take 2 GitHub won't let me reopen #69889 so I make a new PR. In addition to #69889 this fixes the unsoundness of `RawVec::into_box` when using allocators supporting overallocating. Also it uses `MemoryBlock` in `AllocRef` to unify `_in_place` methods by passing `&mut MemoryBlock`. Additionally, `RawVec` now checks for `size_of::<T>()` again and ignore every ZST. The internal capacity of `RawVec` isn't used by ZSTs anymore, as `into_box` now requires a length to be specified. r? @Amanieu fixes rust-lang/wg-allocators#38 fixes rust-lang/wg-allocators#41 fixes rust-lang/wg-allocators#44 fixes rust-lang/wg-allocators#51
2020-04-02Use Self over specific type in return positionLzu Tao-7/+7
2020-04-02Use unrolled looplzutao-9/+43
2020-04-02use of wmemchr for faster searching in [u16]Lzu Tao-2/+12
2020-04-01In Thread::new, add a comment that a panic could cause a memory leak.Vytautas Astrauskas-5/+14
2020-04-01Fix link to write_vectoredThomas de Zeeuw-1/+1
2020-04-01Use unspecified over undefined in io::Write::write_all_vectored docsThomas de Zeeuw-7/+9
2020-03-31Use Box::into_raw instead of ManuallyDrop in Thread::new.Vytautas Astrauskas-36/+20
2020-04-01Rollup merge of #70081 - lcnr:issue68387, r=varkorDylan DPC-3/+2
add `unused_braces` lint Add the lint `unused_braces` which is warn by default. `unused_parens` is also extended and now checks anon consts. closes #68387 r? @varkor
2020-03-31Inline start_thread into its callers.Vytautas Astrauskas-26/+30
2020-03-31Fix double-free and undefined behaviour in libstd::syn::unix::Thread::new.Vytautas Astrauskas-18/+43
2020-03-31Add io::Write::write_all_vectoredThomas de Zeeuw-1/+161
Similar to io::Write::write_all but uses io::Write::write_vectored instead.
2020-03-31fix internal lint falloutBastian Kauschke-3/+2
2020-03-31Rollup merge of #70613 - matthiaskrgr:cl5ppy_squashed, r=CentrilMazdak Farrokhzad-3/+3
more clippy fixes * use is_empty() instead of len comparison (clippy::len_zero) * use if let instead of while let loop that never loops (clippy::never_loop) * remove redundant returns (clippy::needless_return) * remove redundant closures (clippy::redundant_closure) * use if let instead of match and wildcard pattern (clippy::single_match) * don't repeat field names redundantly (clippy::redundant_field_names) r? @Centril
2020-03-31more clippy fixesMatthias Krüger-3/+3
use is_empty() instead of len comparison (clippy::len_zero) use if let instead of while let loop that never loops (clippy::never_loop) remove redundant returns (clippy::needless_return) remove redundant closures (clippy::redundant_closure) use if let instead of match and wildcard pattern (clippy::single_match) don't repeat field names redundantly (clippy::redundant_field_names)
2020-03-30std: Fix over-aligned allocations on wasm32-wasiAlex Crichton-1/+1
The wasm32-wasi target delegates its malloc implementation to the functions in wasi-libc, but the invocation of `aligned_alloc` was incorrect by passing the number of bytes requested first rather than the alignment. This commit swaps the order of these two arguments to ensure that we allocate over-aligned memory correctly.
2020-03-30Rollup merge of #70479 - RalfJung:win-env, r=Mark-SimulacrumDylan DPC-1/+1
avoid creating unnecessary reference in Windows Env iterator Discovered in https://github.com/rust-lang/miri/pull/1225: the Windows `Env` iterator violates Stacked Borrows by creating an `&u16`, turning it into a raw pointer, and then accessing memory outside the range of that type. There is no need to create a reference here in the first place, so the fix is trivial. Cc @JOE1994 Cc https://github.com/rust-lang/unsafe-code-guidelines/issues/134
2020-03-30Add inline attributes for functions used in the query systemJohn Kåre Alsaker-0/+1
2020-03-30move the definition of thread priorities to hermit-abiStefan Lankes-25/+2
2020-03-30reorder imports to pass the format checkStefan Lankes-1/+1
2020-03-30minor changes to pass the format checkStefan Lankes-2/+1
2020-03-30rustc -> rustc_middle part 1Mazdak Farrokhzad-1/+1
2020-03-30move OS constants to platform crateStefan Lankes-9/+3
2020-03-29Implement `init` and `init_offset` on `AllocInit` and mark it unsafeTim Diekmann-4/+4
2020-03-29Rollup merge of #70510 - RalfJung:bool-vs-boolean, r=Mark-SimulacrumDylan DPC-1/+1
fix TryEnterCriticalSection return type Source: https://docs.microsoft.com/en-us/windows/win32/api/synchapi/nf-synchapi-tryentercriticalsection Fixes https://github.com/rust-lang/rust/issues/70504
2020-03-29Rollup merge of #69937 - TyPR124:osstr_ascii, r=dtolnayDylan DPC-11/+235
ASCII methods on OsStr Would close #69566 I don't know enough about encodings to know if this is a valid change, however the comment on the issue suggests it could be. This does two things: 1. Makes ASCII methods available on OsStr 2. Makes it possible to obtain a `&mut OsStr`. This is necessary to actually use `OsStr::make_ascii_*case` methods since they modify the underlying value. As far as I can tell, the only way to modify a `&mut OsStr` is via the methods I just added. My original hope was to have these methods on `OsStrExt` for Windows, since the standard library already assumes `make_ascii_uppercase` is valid in Windows (see the change I made to windows/process.rs). If it is found these are not valid changes on non-Windows platforms, I can move the methods to the ext trait instead.
2020-03-28add tracking issueTyPR124-6/+6
2020-03-28move doc links for consistencyTyPR124-4/+4
2020-03-28remove unnecessary commentsTyPR124-2/+0
2020-03-28use make_ascii_uppercase in windows/process.rsTyPR124-5/+4
2020-03-28ascii methods on osstrTyPR124-6/+233
2020-03-28fix TryEnterCriticalSection return typeRalf Jung-1/+1
2020-03-28Make fields in `MemoryBlock` publicTim Diekmann-16/+17
2020-03-28Replace last mention of IRC with DiscordBenjamin Kästner-1/+3
Mozilla's IRC service was shut down in March 2020. The official instant messaging variant has been Discord for a while, and most of the links were already replaced by #61524. This was the last line that came up with `irc.mozilla.org` or any combination of "irc.*#[a-z]+" in a `git grep`: git grep -i -E "irc.*#[a-z]+" As there is only one other link directly to Rust's discord, I used the same Markdown link `[rust-discord]` as in `bootstrap/README.md` to stay consistent. This might come in handy if the chat platform changes at a later point again. As an aside: for those interested in the use of IRC, Mozilla's [wiki] still offers a lot of in-depth knowledge. [wiki]: https://wiki.mozilla.org/IRC
2020-03-27avoid creating unnecessary reference in Windows Env iteratorRalf Jung-1/+1
2020-03-27Auto merge of #68404 - Amanieu:llvm-asm, r=estebankbors-29/+10
Rename asm! to llvm_asm! As per https://github.com/rust-lang/rfcs/pull/2843, this PR renames `asm!` to `llvm_asm!`. It also renames the compiler's internal `InlineAsm` data structures to `LlvmInlineAsm` in preparation for the new `asm!` functionality specified in https://github.com/rust-lang/rfcs/pull/2850. This PR doesn't actually deprecate `asm!` yet, it just makes it redirect to `llvm_asm!`. This is necessary because we first need to update the submodules (in particular stdarch) to use `llvm_asm!`.
2020-03-27Rollup merge of #70048 - TyPR124:mutable_osstr, r=dtolnayDylan DPC-0/+50
Allow obtaining &mut OsStr ```rust impl DerefMut for OsString {...} // type Target = OsStr impl IndexMut<RangeFull> for OsString {...} // type Output = OsStr ``` --- This change is pulled out of #69937 per @dtolnay This implements `DerefMut for OsString` to allow obtaining a `&mut OsStr`. This also implements `IndexMut for OsString`, which is used by `DerefMut`. This pattern is the same as is used by `Deref`. This is necessary to for methods like `make_ascii_lowercase` which need to mutate the underlying value.
2020-03-26Remove alignment from `MemoryBlock`Tim Diekmann-32/+29
2020-03-26Add comment to `AllocRef` implementation for `System`Tim Diekmann-0/+2
2020-03-26Fix issues from review and unsoundness of `RawVec::into_box`Tim Diekmann-50/+44
2020-03-26Overhaul of the `AllocRef` trait to match allocator-wg's latest consensTim Diekmann-40/+78
2020-03-26Rename asm! to llvm_asm!Amanieu d'Antras-29/+10
asm! is left as a wrapper around llvm_asm! to maintain compatibility.
2020-03-26introduce `negative_impls` feature gate and documentNiko Matsakis-0/+1
They used to be covered by `optin_builtin_traits` but negative impls are now applicable to all traits, not just auto traits. This also adds docs in the unstable book for the current state of auto traits.
2020-03-25Rollup merge of #70361 - tmiasko:backtrace, r=Mark-SimulacrumMazdak Farrokhzad-1/+1
Update backtrace crate to 0.3.46 * Support line-tables-only when using libbacktrace * Update libbacktrace to latest master * Define HAVE_KERN_PROC on FreeBSD to fix rust-lang/rust#54434
2020-03-24spaces between braces really ruin readabilityWithout Boats-4/+4
2020-03-24Update backtrace crate to 0.3.46Tomasz Miąsko-1/+1
2020-03-24correct rustc versionWithout Boats-2/+2
2020-03-24IoSlice/IoSliceMut should be Send and SyncWithout Boats-0/+12
2020-03-23Update src/libstd/lib.rsSaoirse Shipwreckt-1/+1
Co-Authored-By: Ashley Mannix <ashleymannix@live.com.au>
2020-03-23Add `wake_trait` feature directive to stdWithout Boats-0/+1
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